[2]The invention relates to a non-rotary cutting tool, in particular to easy to manufacture and can be used for fine processing of the non-rotary cutting tool.
[3][Background technology]
[4]As is used for the air-conditioner, refrigerator and the like for the compressed gas (refrigerant) of the compressor, a scroll-type compressor. Scroll compressor, the revolution of the vortex relative to the circular motion, by a pair of vortex formed by the plurality of working chamber to the center of the mobile, to decrease the volume of the working chamber, will be introduced into the work chamber to discharge fluid compressed gas, and the like.
[5]Created below 5 and Figure 6 shows that scroll-type compressor. Figure 5 (a) that is fixed to the shell of the scroll compressor (not shown in the Figure) of the fixed portion 100 of a perspective view, fig. 5 (b) is fitted to the fixed part 100 of the movable part 103 of a perspective view. Fixed portion 100 includes a fixed-side bottom surface 101, from the fixed-side bottom surface 101 to erect fixed side gyre Department 102. Furthermore, the movable part 103 comprises a substantially disc-shaped movable-side bottom surface 104, and the fixed side gyre Department 102 contact, the compressed gas of the movable side gyre Department 105. As shown in Figure 6, the aforesaid movable part 103 in the matching to the fixed portion 100 under the state of on, by rotating the, compression movable side gyre Department 105 and fixed side gyre Department 102 gas between. The compressed gas from the fixed portion 100 the central nozzle 106 is discharged to the outside of the scroll compressor. Therefore, because the movable-side gyre Department 105 and the fixed side gyre Department 102 the higher the degree of seal between the, the better the efficiency of compression, therefore, the movable-side gyre Department 105 and fixed side gyre Department 102 high requirements of the accuracy of the machining. In the prior art, this kind of scroll compressor the gyre Department processing, using endmills divided into coarse processing, processing precision in, three process finish machining (for example, referring to Patent literature 1).
[6][Patent literature 1] extra Kaiping 11-336675 of ([0018]) the
[7]However, when the vertical milling cutter is used for the finish machining process, the in the vertical milling cutter and the retainer, because the rotation will generate vibration, the vibration will be caused by processing can obtain sufficient accuracy. In particular, in the scroll compressor, in order to improve the compression efficiency, the sealing between the scroll part is very important, however, when the gyre Department of the processing accuracy is low, reducing the sealing degree, the existence of the scroll compressor is difficult to obtain the compression efficiency of the problem. Furthermore, because it is hard to obtain suitable for finish machining the machining precision of the milling cutter high setting up , for example, presence of such rotary compressor whorl the products of the problem of unstable of manufacturing.
[9]The invention, in order to solve the above-mentioned problem, and aims to provide a finishing and is easy to manufacture in the processing precision of the can obtain sufficient the non-rotary cutting tool.
[10]In order to reach this purpose, the programme 1 wherein the non-rotary cutting tool, in the handle, with the handle in one and the same shaft, is integrally connected to the main body, is arranged on the main body on the side of the cutting edge the periphery of the, in the aforesaid the front end of the main body portion and the outer circumference of edge bottom knife edge is connected, and utilizing the aforesaid peripheral edge and the aforesaid bottom knife edge formed relative to the cutting direction of the confronted into the roughly vertical posture of the cutting tool used for cutting, the aforesaid peripheral knife edge or the bottom edge of at least one of the surface of the diamond film coating, and the outer circumferential edge or the bottom edge of the surface of the diamond film is at least one of the grinding.
[11]Programme 2 the non-rotary cutting tool, the programme 1 wherein the non-rotary cutting tool, having a bottom surface and substantially perpendicular from the bottom surface of the erect gyre Department of processing for a scroll compressor in the cutting tool, by making the aforesaid non-rotary cutting tool cutting travel, the aforesaid peripheral cutting edge the gyre Department, and the aforesaid bottom knife edge cutting the bottom surface.
[12]Programme 3 the non-rotary cutting tool, the programme 2 the non-rotary cutting tool, the outer periphery of the blade and R of the corner cross bottom knife edge substantially in a 0.05 mm the following.
[13]Scheme 4 the non-rotary cutting tool, the programme 1 to 3 in any one of the non-rotary cutting tool, the peripheral knife edge or the bottom edge of at least one of the degree of roughness of the polished surface at approximately the 1.60 mRz the following.
[14]Programme 5 the non-rotary cutting tool, the programme 1 to 4 in any one of the non-rotary cutting tool, the peripheral knife edge or the bottom edge of the tool tip in the at least one of R is roughly 0.03 mm the following.
[15]Programme 6 the non-rotary cutting tool, the programme 1 to 5 in any one of the non-rotary cutting tool, the peripheral edge of the shank from the previous reference time of the periphery deviate from the geometric straight-line edge of the 3 following m, and, the aforesaid bottom knife edge from the handle is a reference when the bottom edge of the deviate from the geometrical shape of the 3 m the following.
[16]In accordance with the programme 1 wherein the non-rotary cutting tool, the cutting edge or bottom knife edge through the periphery of at least one of the surface of the coated diamond film, inhibiting bending of the cutting processing, and, through grinding diamond film, improving the surface smoothness of the diamond film. Therefore, is easy to obtain adequate in the fine machining accuracy of the the effect of the non-rotary cutting tool.
[17]In accordance with the programme 2 the non-rotary cutting tool, with a programme 1 wherein the non-rotating effect of the cutting tool, used in processing of the scroll compressor, by making the aforesaid non-rotary cutting tool cutting travel, at the outer periphery the gyre Department cutting edge at the same time, the bottom surface of the cutting bottom knife edge , will not cause vibration due to rotation, and use of vertical milling cutter compared with the case of the processing, can be obtained the effect of improving the processing precision. As a result, of the scroll compressor because of the machining accuracy of the gyre Department, therefore, the sealing degree between the scroll part, of the scroll compressor by improving the compression efficiency of the effect.
[18]Furthermore, in accordance with the programme 2 the non-rotary cutting tool, milling cutter using setting up the rough machining can be carried out, using programme 2 the non-rotary cutting tool for fine processing. Therefore, with the use of vertical milling cutter in the gyre Department of, the rough machining required, and the processing precision in finishing three processes compared with the case of the prior art, processing of precision in the there is no need, therefore, has the effect of increasing the operating efficiency.
[19]Furthermore, in accordance with the programme 2 the non-rotary cutting tool, the scroll portion of the scroll compressor to obtain sufficient finishing of the machining accuracy of the non-rotary cutting tool, milling cutter with the finish machining compared with O, the manufacture is easy, therefore, can be stably produced is obtained the effect of the scroll compressor.
[20]In accordance with the programme 3 the non-rotary cutting tool, with a programme 2 the non-rotary cutting tool of the effect, due to the aforesaid peripheral edge and the aforesaid bottom knife edge R of the corner of the cross of the roughly 0.05 mm the following, therefore, in the finish machining of the scroll compressor, the scroll part and the bottom surface R, is processed into the shape of the tool substantially the same R shape, therefore, has the advantages of improving the scroll part of the movable side and fixed side scroll portion the sealing degree of the matched with the, improve the compression efficiency of the scroll compressor of the effect.
[21]In accordance with the programme 4 the non-rotary cutting tool, with a programme 1 to 3 in any one of the non-rotary cutting tool of the effect, because the peripheral edge or bottom knife edge of at least one of the degree of roughness of the polished surface at approximately the 1.60 mRz the following, therefore, has a sufficient precision machining precision can be obtained the effect of the surface.
[22]In accordance with the programme 5 the non-rotary cutting tool, with a programme 1 to 4 in any one of the non-rotary cutting tool of the effect, because the outer circumferential edge or bottom knife edge tip in the at least one of the R of approximately 0.03 mm the following, therefore, has a sufficient precision machining precision can be obtained the effect of the surface.
[23]In accordance with the programme 6 the non-rotary cutting tool, with a programme 1 to 5 in any one of the non-rotary cutting tool of the effect, because the outer circumferential edge as a reference from the previous shank of the outer circumference when the geometric straight-line deviate from the edge of the 3 following m, and, the aforesaid bottom knife edge from the handle is a reference when the bottom edge of the deviate from the geometrical shape of the 3 m the following, therefore, has a sufficient precision machining precision can be obtained the effect of the surface.
[24][With photos of a simple explanation]
[25]Figure 1, is expressed according to the invention of a 1st embodiment of the graphical representation of the non-rotary cutting tool, (a) is a front view, (b) is a side view, (c) is a bottom plan.
[26]Figure 2, is used for cutting test of said non-rotary cutting tool of the milling cutter are details of each component of the table.
[27]Figure 3, represents the results of the cutting test of the table.
[28]Figure 4, (a) is according to the present invention of the non-rotary cutting tool of a front view, (b) is according to the invention of a 3rd embodiment of a front view of the non-rotary cutting tool.
[29]Figure 5, is expressed as the cutting material representation of the scroll compressor, (a) is a perspective view of the fixed portion, (b) is a perspective view of the movable part.
[30]Figure 6, shows the use of the gas vortex compressor of compressed movement of the Figure.
[31]Figure 7, is that the processing of the scroll compressor, when the non-rotary cutting tool graphic.
[32][Description of symbols]
[33]1, 20, 30 of the non-rotary cutting tool (non-rotating tool)
[34]2, 22, 32 tool main body (main body)
[37]6, 26, 36 bottom knife edge
[38]100 fixed portion (scroll compressor)
[39]103 (scroll compressor) mechanism
[40]101,104 bottom surface
[41]102,105 gyre Department
[42][The best form of implementation of the invention]
[43]The following, with reference to the Figure the preferred embodiment of the invention, an example for description. Figure 1 of the present invention the type expressed a 1st embodiment of the non-rotary cutting tool in the diagram, Figure 1 (a) is a non-rotary cutting tool 1 of a front view, fig. 1 (b) is a non-rotary cutting tool 1 of a side view, fig. 1 (c) is a non-cutting tool 1 the bottom of the Figure. First of all, with reference to Figure 1 shows that non-rotary cutting tool 1 of the overall structure.
[44]Non-rotary cutting tool 1, is a kind of its rake with respect to the direction of cutting of the posture of the roughly vertical to the cutting material cutting relative of the so-called non-rotating tool, through the retainer its one end (Figure 1 (a) on the right side of) a retainer (not shown in the Figure) of a machining center and the like to transmit the driving force of the processing machinery. Non-rotary cutting tool 1, for example, is suitable for use in a scroll-type compressor (with reference to Figure 7) the fine machining.
[45]Non-rotary cutting tool 1, by the application of a pressure, such as cemented tungsten carbide (WC) is made of a super-hard (rigid) alloy, including the forming section is roughly is in the shape of a semicircle (with reference to Figure 1 (c)) the tool body 2, in the tool body 2 of one end side (Figure 1 (a) on the right side of) the tool body 2 in one and the same shaft is integrally connected with a shank 3. Non-rotary cutting tool 1, the handle 3 is retained in the holder, is mounted to the on the processing machinery.
[46]In the tool main body 2 side wall (fig. 1 (a) the lower side) and the bottom surface portion (Figure 1 (a) the left) is, as shown in Figure 1 (a) shown in, forming of the blade 4. Blade 4 includes the peripheral edge 5, bottom knife edge 6, these peripheral edge 5 and bottom knife edge 6, as shown in Figure 1 (a) shown in, disposed substantially orthogonal to each other. Furthermore, peripheral edge 5 and bottom knife edge 6 of the corner of the cross of the R, its radius is substantially between 0.05 mm the following.
[47]Blade 4 (peripheral edge 5, bottom sunblade 6), by using CVD (chemical vapor deposition) method to the tool main body 2 to the entire outer surface of approximately 6 the roughly- m the 20 m coating of the thickness of the diamond film at the same time, through the grinding wheel for grinding the diamond film to the degree of roughness of the grinding surfaces cheng Yan the 1.60 mRz the following, after forming the rake and the clearance surface.
[48]Here, the reason why the coated diamond is the thickness of the film is approximately 6 the roughly- m the 20 m, is due to a substantially lower than the thickness of the 6 the m, diamond is membrane will fall off, when the excess of about 20 the the m, is disadvantageous from the cost considerations of the of. Furthermore, can also be used a laser, ion beam, chemical-mechanical polishing, such as mechanical-chemical polishing of the diamond film is film grinding.
[49]Peripheral edge 5, the clearance surface of the rake and is substantially parallel to the handle 3 is formed on the tool body of the shaft 2 the cutting edge on the side of the, inner after α is for example 5° after the formation of the clearance surface. Furthermore, peripheral edge 5, the tip R is roughly 0.03 mm the following, and, from by handle 3 week knife edge to reference the outer of 5 the geometry of the deviate from a straight line, in other words, in order to handle 3 as a reference the outer periphery of the blade 5 is about the cylindricity of the 3 m the following.
[50]bottom knife edge 6 its rake and the ridges is in order to become the clearance surface of the shank 3 is formed in such a manner as the normal direction of the tool body 2 the cutting edge on the bottom surface of, for example, β is an inner 5° after the formation of the clearance surface. Furthermore, bottom knife edge 6, the tip R, the radius is in the range of about 0.03 mm the following, and, from by handle 3 is a reference time of its bottom knife edge 6 deviate from the straight line of the geometry, that is, in order to handle 3 bottom knife edge as a reference when 6 the straightness, roughly in the 3 m the following.
[51]As mentioned above the non-rotary cutting tool 1, by a peripheral edge 5 and bottom knife edge 6 formed by a surface (rake) relative to the direction of cutting of the posture of the substantially vertically relative to the cutting material cutting advance, using the outer week knife edge 5 and bottom knife edge 6 cutting is cutting material. Figure 7 is chart of processing of the scroll compressor that the use of non-rotary cutting tool 1 in the. Specifically, one side in the X axis direction, Y-axis direction, and the direction of control and rotate control carries sets at the whorl A shaft of rotary compressor 100 or the movable part 103 work piece platform (not shown in the Figure), while using a fixed to the holder (not shown in the Figure) of the non-rotary cutting tool 1 cutting gyre Department 102,105, bottom surface 101,104.
[52]Secondly, with reference to Figure 2 and Figure 3, shows that utilize the above-mentioned structure of the non-rotary cutting tool 1 of the test result of the cutting test. The cutting test, a non-rotary cutting tool 1 of the scroll compressor of the milling box set gyre Department 102,105 (with reference to Figure 5) of the cutting processing, the processing precision of a test.
[53]Figure 2 is the test used for cutting the non-rotary cutting tool 1 of the milling box set details of each component of the table. Here, Figure 2 of the so-called surface roughness is shown, refer to the non-rotary cutting tool 1 of the respective milling cutter box set the periphery of the bottom and the surface roughness of the blade, the so-called corner R, is the non-rotary cutting tool 1 independent milling cutter blade and the periphery of their respective cross-corner R bottom knife edge , the so-called linearity, refers to non-rotary cutting tool 1 independent milling cutter, in their respective reference handle achievement from the bottom edge of the geometric shape of the deviation, in other words bottom edge straightness, the so-called tip is of R means of the non-rotary cutting tool 1 the periphery of the respective independent milling cutter knife edge and the bottom edge of the nose R (radius).
[54]Furthermore, cutting test, utilizes a Figure 2 shown in a non-rotary cutting tool 1 of the milling cutter box set, in shown below under the cutting conditions.
[57]The use of mechanical: horizontal machining center
[58]Holder: clamp cover type mill cutting chuck
[59]Cutting oil: water-soluble cutting oil
[60]Fig. 3 is table of the results of the cutting tests, the roughness of the surface, by means of the machined surface roughness of the cutting material, corner R referring to the cutting material is between the scroll and the bottom surface of corner R, the so-called linearity means relative to the cutting material is the gyre Department of the straightness of the bottom surface.
[61]if from chart 3 can be seen in the test results, if the application of the invention the non-rotary cutting tool 1 so, can confirm, and compared with the case of vertical milling cutter, to the machining accuracy of the excellent, the cutting is cutting material the degree of roughness of the processing surface, is cutting material of the corner of the scroll portion and the bottom surface R, relative to the cutting material the gyre Department of the straightness of the bottom surface.
[62]Specifically, as shown in Figure 3, and the use of the non-rotary cutting tool 1 at the time, the blade 4 the shape precision (with reference to Figure 2) is completely copied to the processing surface of the material being cut is relatively the condition, when the milling cutter the use stands , surface of the material being cut (corner R, straightness) than the precision of the shape of the blade (with reference to Figure 2) the precision of the deterioration. This can be considered that when the cutting processing is due to the vertical due to the rotation of the milling cutter and the retainer caused by the vibration and bending.
[63]As described above, because the non-rotary cutting tool 1, the knife edge on the outer periphery 5 and bottom knife edge 6 hard coated on the surface of the diamond film, to ensure that their rigid, therefore, inhibit outer week knife edge 5 and bottom knife edge 6 bending in the cutting processing, and, through grinding diamond film improve its surface finish (roughness level). Therefore, can be easily obtained for adequate precision machining of the machining accuracy of the non-rotary cutting tool.
[64]Furthermore, the non-rotary cutting tool 1 is used for the processing of the scroll compressor, improve to make the non-rotary cutting tool 1 cutting travel, peripheral edge 5 cutting gyre Department 102,105 at the same time of, bottom knife edge 6 cutting the bottom 101,104, therefore, the vibration due to rotation will not be, therefore, with the use of vertical milling cutter compared with the case of precision machining, the machining accuracy can be improved. As a result, vortex is used to improve the processing precision of the gyre Department of the compressor, therefore, the sealing degree between the scroll part, improve the compression efficiency of the scroll compressor.
[65]Furthermore, according to the non-rotary cutting tool 1, the processing precision of the can obtain enough, therefore, rough machining is carried out can be conducive to the milling cutter, the use of non-rotary cutting tool 1 for fine processing.
[66]Furthermore, because the non-rotary cutting tool 1, the scroll portion of the scroll compressor of the compared with vertical milling cutter for finish machining, easy to manufacture, the scroll compressor can be made.
[67]Furthermore, other than the edge last week 5 and bottom knife edge 6 cross the corner of the approximately R 0.05 mm the following way, therefore, the non-rotary cutting tool 1 is used for the fine machining of the scroll compressor, used for gyre Department 102,105 and bottom 101,104 corner between the R, and the tool has approximately the same shape of the shape of the R, therefore, improve the gyre Department and the movable side of the fixed side of the sealing degree of the vortex with, can improve the compression efficiency of the scroll compressor.
[68]Furthermore, because the outer peripheral edge 5 and bottom knife edge 6 control in the degree of roughness of the polished surface of about 1.6 the mRz the following, therefore, as a fine processing, the processed sufficient precision can be obtained.
[69]Furthermore, because the outer week knife edge 5 and the bottom edge of the tool are respectively R approximately 0.03 mm the following, therefore, as a fine processing, the processed sufficient precision can be obtained.
[70]Furthermore, because the peripheral edge from the in order to handle 3 as a reference outer week knife edge when 5 the geometry of the deviate from the straight line of the 3 following m, so can obtain sufficient finishing precision.
[71]Secondly, with reference to Figure 4 (a) shows that a 2nd embodiment. A 1st embodiment of the with the non-rotary cutting tool 1 in, bottom knife edge 6 a relatively sharply, a 2nd embodiment of the non-rotary cutting tool 20 in, bottom knife edge 26 is bent into a substantially circular arc shape. Furthermore, with the aforementioned 1st embodiment to the same parts of the same grade, its explanation is omitted.
[72]Figure 4 (a) is one in the 2nd embodiment of the non-rotary cutting tool 20 a front view of the, omitting the handle 3. 2nd one embodiment of the non-rotary cutting tool 20, as shown in Figure 4 (a) shows, tool main body 22 side of the bottom surface of the (Figure 4 (a) the upper side) is bent into a substantially circular arc-shaped, as with the 1st embodiment, to improve the grinding is applied to the outer surface of the diamond film on, to form a peripheral edge 5 and bottom knife edge 26.
[73]According to this kind of non-rotary cutting tool 20, a 1st embodiment can be obtained, and the non-rotary cutting tool 1 essentially the same effect, for example, in the cutting material is suitable for the processing of carries on the trough. In other words, the non-rotary cutting tool 20, the bottom surface of the cutting processing can be smoothly curved groove. Furthermore, according to this non-rotary cutting tool 20, the tool main body 22 with the required pre-processed into a shape corresponding to the shape of the groove, and then, the diamond film coating, grinding, forming of the blade can be easily 24 shape.
[74]Secondly, with reference to Figure 4 (b) shows that a 3rd embodiment. A 1st embodiment relative to the non-rotary cutting tool 1 in, a bottom knife edge of the wall, a 3rd embodiment of the non-rotary cutting tool 30 in, bottom knife edge 36 protrudes to the outside of a generally V-shaped taper. Furthermore, the aforesaid 1st embodiment of the same portion of a, given the same label, its explanation is omitted.
[75]Figure 4 (b) is in a 3rd embodiment of the non-rotary cutting tool 30 of a front view, omitting the handle 3. In a 3rd embodiment of the non-rotary cutting tool 30, as shown in Figure 4 (b) shows, tool body 32 side of the bottom surface of the (Figure 4 (b) the upper side) to the direction of a roughly V-shaped taper, and a 1st embodiment similarly, to improve the grinding coating on an outer surface thereof is of the diamond (overlying) film, to form the outer peripheral edge 5 and bottom knife edge 36.
[76]According to the non-rotary cutting tool 30, and 1st embodiment is obtained in a non-cutting the cutting tool 1 essentially the same effect, for example, by cutting material can be cut to be formed into a cross-sectional shape of the groove of substantially V-shaped. Furthermore, through the non-rotary cutting tool 30, the tool body 32 pre-processing corresponds to the shape of the required to the shape of the grooves, then, coated diamond film, a and grind, therefore, can be very easily forming blade 34 shape.
[77]Top, according to an embodiment of the present invention is described, but the invention is not limited to the above embodiment, without deviating from the scope of the present invention the thrust of the surface, various improved deformation can be carried out.
[78]For example, in the above-mentioned embodiment, only an outer peripheral edge formed in the main body 2 of a part of the side wall, but also can be formed in the main body 2 of the two sides of the side wall (in other words, the two sides of the rake).
[79]Furthermore, in the above embodiment there is no special note, non-rotary cutting tool 1, 20, 30 can be utilized of the method of the below, for recovering and reusing. In other words, non-rotary cutting tool 1, 20, 30 as the blade 4, 24, 34 by a diamond film surface a (grinding surface), therefore, the service life of the non-rotary cutting tool 1, 20, 30 the combustion in the furnace, after removing the diamond film, the diamond film coating by once again, and the grinding, can be regenerated blade 4, 24, 34, can be realized at low cost non-rotary cutting tool 1, 20, 30 the recovery and re-use.
