CN112805118A - Machining tool and roll finishing device - Google Patents
Machining tool and roll finishing device Download PDFInfo
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- CN112805118A CN112805118A CN201880098187.XA CN201880098187A CN112805118A CN 112805118 A CN112805118 A CN 112805118A CN 201880098187 A CN201880098187 A CN 201880098187A CN 112805118 A CN112805118 A CN 112805118A
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- roll finishing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B39/00—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor
- B24B39/06—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working plane surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/40—Single-purpose machines or devices for grinding tubes internally
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The present invention relates to a processing tool for holding a roll finishing shaft of a roll finishing apparatus for roll finishing an inner surface of a groove formed outward from an inner peripheral surface of a cylindrical workpiece. The processing tool includes a support portion that supports both ends of the roll finishing shaft so as not to fix both ends of the roll finishing shaft.
Description
Technical Field
The present invention relates to a processing tool used for a roll finishing apparatus that performs roll finishing on an inner surface of a groove formed outward from an inner peripheral surface of a cylindrical body, and to a roll finishing apparatus.
Background
In general, a cylinder of a rotary compressor is formed in a cylindrical shape having a through hole at a central portion thereof, and a vane mounting groove extending in a radial direction from an inner peripheral surface is formed in the cylinder. The vane is slidably disposed in the vane mounting groove, and reciprocates in the vane mounting groove while contacting an outer surface of an eccentric ring disposed in a through hole of the cylinder. In a rotary compressor including such a cylinder block and vanes, in order to improve the sliding performance of the vanes and obtain a high-efficiency compressor, extremely high processing accuracy such as surface roughness, flatness, parallelism, and groove width is required for processing the inner surface of the vane mounting groove.
As a finishing device for the inner surface of the blade mounting groove, for example, there is a device of patent document 1. Patent document 1 discloses a roll finishing apparatus including a roll finishing shaft having a diameter larger than the width of a blade mounting groove. Patent document 1 discloses a machining tool for holding a shaft for roll finishing by cantilever fixation. Further, by moving the working tool, the roller burnishing shaft is reciprocated while being pushed against the inner surface of the blade mounting groove, whereby the inner surface of the blade mounting groove is slightly plastically deformed, and the roller burnishing is performed to improve the convex portion of the inner surface of the blade mounting groove.
Patent document 1: japanese patent laid-open publication No. 2015-226971
In the roll finishing apparatus of patent document 1, as described above, the roll finishing shaft is fixed by a cantilever and held by the machining tool. Therefore, during machining, there is a possibility that the roll finishing shaft is bent, and a possibility that the center line of the blade mounting groove is displaced from the center axis of the roll finishing shaft. In this state, when the roll finishing shaft enters the blade mounting groove, the roll finishing shaft is strongly pressed against one inner side surface of the blade mounting groove because the roll finishing shaft does not have a function that the central axis of the roll finishing shaft follows the center line of the blade mounting groove. Therefore, there is a problem that uneven wear occurs on the surface of the roll finishing shaft, resulting in a reduction in tool life.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a machining tool and a roll finishing apparatus capable of suppressing uneven wear of a roll finishing shaft and improving the tool life in roll finishing an inner side surface of a groove formed outward from an inner peripheral surface of a cylindrical workpiece.
The present invention relates to a machining tool for holding a shaft for roll finishing used in a roll finishing apparatus for roll finishing an inner surface of a groove formed outward from an inner peripheral surface of a cylindrical workpiece, the machining tool including a support portion for supporting both ends of the shaft for roll finishing so as not to fix both ends of the shaft for roll finishing.
According to the machining tool of the present invention, the roll finishing shaft is formed in a double-support structure, and therefore, the roll finishing shaft can be prevented from being greatly deflected during machining. Therefore, partial uneven wear of the surface of the roll finishing shaft can be prevented, and the tool life can be improved.
Drawings
Fig. 1 is a schematic configuration diagram of a roll finishing apparatus according to embodiment 1 of the present invention.
Fig. 2 is a schematic perspective view showing a state in which a cylindrical workpiece is mounted on a workpiece holding device of a roll finishing device according to embodiment 1 of the present invention.
Fig. 3 is a perspective view of a cylindrical workpiece machined by the roll finishing device according to embodiment 1 of the present invention.
Fig. 4 is a schematic cross-sectional view of a processing tool of the roll finishing apparatus according to embodiment 1 of the present invention.
Fig. 5 is a schematic perspective view of a machining tool of the roll finishing device according to embodiment 1 of the present invention.
Fig. 6 is a schematic cross-sectional view showing a dimensional relationship of a processing tool of the roll finishing device according to embodiment 1 of the present invention.
Fig. 7 is a plan view showing a dimensional relationship of a cylindrical workpiece machined by the roll finishing device according to embodiment 1 of the present invention.
Fig. 8 is a schematic perspective view showing a main part of a roll finishing apparatus before roll finishing of a cylindrical workpiece processed by the roll finishing apparatus according to embodiment 1 of the present invention.
Fig. 9 is a schematic plan view showing a relationship between a shaft for roll finishing and a blade mounting groove in processing a cylindrical workpiece processed by the roll finishing apparatus according to embodiment 1 of the present invention.
Fig. 10 is a diagram showing a relationship between a radial position of a blade mounting groove and surface flatness before and after machining using the roll finishing device according to embodiment 1 of the present invention.
Fig. 11 is a view showing the shape of the shaft surface processed at 153.6 m/root using a conventional cantilever-fixed type processing tool.
Fig. 12 is a view of the shape of the shaft surface after machining at 2304 m/workpiece using the both-end-support type machining tool according to embodiment 1 of the present invention.
Fig. 13 is a graph showing the difference in surface pressure caused by the presence or absence of uneven wear on the surface of the roll finishing shaft.
Fig. 14 is a schematic cross-sectional view of a processing tool of the roll finishing apparatus according to embodiment 2 of the present invention.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same reference numerals are given to the same parts.
Fig. 1 is a schematic configuration diagram of a roll finishing apparatus according to embodiment 1 of the present invention. Fig. 2 is a schematic perspective view showing a state in which a cylindrical workpiece is mounted on a workpiece holding device of a roll finishing device according to embodiment 1 of the present invention. Fig. 3 is a schematic perspective view of a cylindrical workpiece machined by the roll finishing device according to embodiment 1 of the present invention.
First, the configuration of the roll finishing apparatus 100 according to embodiment 1 will be described with reference to fig. 1. The roll finishing apparatus 100 includes: a tool moving device 10 that performs roll burnishing while relatively moving a machining tool 30 with respect to a cylindrical workpiece to be machined; and a workpiece holding device 40 for holding the cylindrical workpiece. Here, the roll burnishing is a process of improving a convex portion of a surface of a workpiece by slightly plastically deforming the surface of the workpiece. In the present specification, as shown in fig. 2, a case where the cylindrical workpiece to be processed is a cylinder block 1 of a rotary compressor and the surface of the workpiece is a vane mounting groove 5 will be described as an example.
The tool moving device 10 includes: a machining tool 30; a lifting unit 11 which fixes the machining tool 30 and moves up and down; and a slide table 12 that moves the lifting unit 11 in the vertical direction. Further, the tool moving device 10 includes: a ball screw 13 for moving the slide table 12; a drive device 14 that drives the ball screw 13; a guide 15 that holds the slide table 12; and a main body guide 16 that supports the guide 15. The tool moving device 10 further includes: a slide table 17 that moves the main body guide 16 in the horizontal direction; a ball screw 18 for moving the slide table 17; a guide 19 that holds the slide table 17; and a driving device 20 that drives the ball screw 18. As shown by the arrows in fig. 1, the tool moving device 10 configured as described above is configured as follows: the machining tool 30 is moved in the vertical direction by the rotation of the ball screw 13, and the machining tool 30 is moved in the left-right direction in fig. 1 by the rotation of the ball screw 18.
Next, the work holding apparatus 40 will be described with reference to fig. 1 and 2.
The work holding device 40 includes: a stage 41; a workpiece stage 42 on which 3 workpiece stages 42 are arranged on the stage 41 and on which the cylinder 1 is placed in the present embodiment; and workpiece pressing portions 43, which are provided in the same number as the number of the workpiece support tables 42, and which press the cylinders 1 against the workpiece support tables 42.
A first positioning pin 44 is attached to one of two workpiece rests 42a on the far right side in fig. 2 (the right side in fig. 1) of the 3 workpiece rests 42. Further, the second positioning pins 45 are attached to the remaining workpiece stage 42b. The cylinder 1 is set on the work piece table 42 so as to be positioned in the horizontal direction by inserting the first positioning pin 44 and the second positioning pin 45 into the first reference hole 3 and the second reference hole 4 formed in the cylinder 1. Further, the upper surface of the cylinder 1 is pressed by the workpiece pressing portion 43, thereby preventing the floating of the cylinder 1 during the roll finishing.
In this way, the cylinder block 1 is provided on the stage 41 so that the phases thereof are fixed by the first positioning pin 44 and the second positioning pin 45, and thus, for example, the conveying operation in the subsequent step such as the deburring step to the vane mounting groove 5 can be easily performed. That is, when the cylinder 1 is put on the stage of the subsequent step, the cylinder 1 can be held in the current phase by holding the through hole 2 of the cylinder 1 with a conveyance chuck (not shown) without performing the positioning of the phase of the cylinder 1 again, and the cylinder can be easily conveyed to the stage of the subsequent step.
As shown in fig. 2 and 3, the cylinder 1 is formed in a cylindrical shape having a through hole 2 at the center, and a vane attachment groove 5 is formed in a radial direction from the inner circumferential surface toward the outer side. The vane mounting groove 5 is a space for the vanes to slide when the rotary compressor is in operation. If the surface of the inner surface of the vane mounting groove 5 is rough, the resistance to sliding increases due to the interference between the surface-shaped convex portions when the vane reciprocates in the vane mounting groove 5, which is not preferable when the cylinder block 1 is used. Therefore, it is necessary to perform roll finishing on the inner surface of the blade mounting groove 5 in advance with high accuracy.
Next, the machining tool 30 will be explained.
Fig. 4 is a schematic cross-sectional view of a processing tool of the roll finishing apparatus according to embodiment 1 of the present invention. Fig. 5 is a schematic perspective view of a machining tool of the roll finishing device according to embodiment 1 of the present invention.
The machining tool 30 includes: an attachment shaft 32 attached to the lifting unit 11 of the tool moving device 10; and a support portion 33 fixed to the lower end portion of the mounting shaft 32 and supporting the roll finishing shaft 31. The shaft 31 for roller burnishing is configured to have a diameter R (R [ mu ] m & lt/A [ mu ] m + Delta A [ mu ] m) larger than the width A (see FIG. 7 described later) of the groove of the blade mounting groove 5 of the cylinder 1 to be machined. The shaft 31 for burnishing is made of a material harder than the cylinder 1.
The support portion 33 has the following structure: the first support member 34 supporting one end of the roll finishing shaft 31 and the second support member 35 supporting the other end are fastened by the fastening member 36 in a state separated in the axial direction of the mounting shaft 32. The fastening member 36 is only required to be able to fasten the first support member 34 and the second support member 35, and is constituted by a bolt 36a and a nut 36b, but the structure thereof is arbitrary.
The first support member 34 is formed with a first insertion hole 37a into which one end of the roll finishing shaft 31 is inserted. In addition, a second insertion hole 37b into which the other end of the roll finishing shaft 31 is inserted is formed in the second support member 35. The first insertion hole 37a and the second insertion hole 37b have the same diameter D and a diameter (Dmm ≦ Rmm + DeltaR mm) larger than the diameter R of the shaft 31 for roll finishing. Thus, the shaft 31 for roll finishing is not fixed to the support 33 but supported by the support 33 with both ends inserted into the first insertion hole 37a and the second insertion hole 37b, because of the relationship of D [ mm ] ≦ R [ mm ] + Δ R [ mm ]. In this way, since there is a gap Δ R between the roll finishing shaft 31 and the first insertion hole 37a and the second insertion hole 37b, the roll finishing shaft 31 can move in the horizontal direction within the range of the gap.
Next, a dimensional relationship between the machining tool 30 and the cylinder block 1 will be described.
Fig. 6 is a schematic cross-sectional view showing a dimensional relationship of a processing tool of the roll finishing device according to embodiment 1 of the present invention. Fig. 7 is a plan view showing a dimensional relationship of a cylindrical workpiece machined by the roll finishing device according to embodiment 1 of the present invention.
The width W of the processing tool 30 has a diameter (W mm & lt B mm-Delta B mm) smaller than the diameter B of the through hole 2 of the cylinder 1. The width L between the first support member 34 and the second support member 35 of the working tool 30 has a dimension (L [ mm ] ≦ E [ mm ] + Δ E [ mm ]) larger than the thickness E (see FIG. 3) of the cylinder block 1.
Next, a method of roller burnishing the inner surface of the vane mounting groove 5 of the cylinder block 1 using the machining tool 30 will be described.
Fig. 8 is a schematic perspective view showing a main part of a roll finishing apparatus before roll finishing of a cylindrical workpiece processed by the roll finishing apparatus according to embodiment 1 of the present invention. Fig. 9 is a schematic plan view showing a relationship between a shaft for roll finishing and a blade mounting groove in processing a cylindrical workpiece processed by the roll finishing apparatus according to embodiment 1 of the present invention. In fig. 9, the hollow arrow indicates the moving direction of the roll finishing shaft 31.
First, the drive device 20 is driven to move the slide table 17, and as shown in fig. 8, the working tool 30 is moved until the central axis 30c (see fig. 6) of the working tool 30 coincides with the center 2c (see fig. 7) of the through hole 2 of the cylinder 1. Thereafter, the driving device 14 is driven to move the slide table 12, thereby lowering the lifting unit 11 to which the machining tool 30 is attached. Specifically, the lifting unit 11 is lowered until the roll finishing shaft 31 held by the working tool 30 is positioned to face the inner circumferential surface of the cylinder 1. Thereafter, the driving device 20 is driven to move the body guide 16, the guide 15, the lifting unit 11, and the machining tool 30, and to move the roll finishing shaft 31 into the blade mounting groove 5.
Here, when the roll finishing shaft 31 is inserted into the blade mounting groove 5, as shown in fig. 9, a case where the center line 5c of the blade mounting groove 5 is shifted from the center axis 31c of the roll finishing shaft 31 is considered. In this case, the roll finishing shaft 31 is strongly pressed against the inner surface of the blade mounting groove 5. However, as described above, the roll finishing shaft 31 has a gap Δ R with respect to the first insertion hole 37a and the second insertion hole 37b of the support 33. Therefore, when entering the blade mounting groove 5, the roll finishing shaft 31 moves in the horizontal direction along the blade mounting groove 5 so that the central axis 31c coincides with the center line 5c of the blade mounting groove 5.
Then, the roll finishing shaft 31 enters the blade mounting groove 5 and is machined in a state where the central axis 31c of the roll finishing shaft 31 coincides with the center line 5c of the blade mounting groove 5. Accordingly, the surface of the inner surface of the blade mounting groove 5 is flattened and finished to a smooth surface, and thus the surface of the inner surface of the blade mounting groove 5 can be uniformly and accurately roll-finished.
Fig. 10 is a diagram showing a relationship between the radial position of the blade mounting groove and the surface flatness before and after the machining in the roll finishing device according to embodiment 1 of the present invention. Fig. 10(a) shows the surface flatness [ μm ] corresponding to the radial position [ mm ] of the blade mounting groove 5 before the roll burnishing. Fig. 10(b) shows the surface flatness [ μm ] corresponding to the radial position [ mm ] of the blade mounting groove 5 after the roll finishing.
It is found that the surface flatness of the inner surface of the blade mounting groove 5 after the roll finishing is more flat than before the finishing, and the convex portion of the surface is flattened and finished into a smooth surface shape with less convex portion.
However, the diameter D of each of the first insertion hole 37a and the second insertion hole 37b into which the roll finishing shaft 31 is inserted is set to be larger by Δ R than the diameter R of the roll finishing shaft 31 as described above, but the size of Δ R is in an appropriate range. In fig. 9, a case is considered in which the value of the dimension F is 0.4mm, and the center axis 31c of the roll finishing shaft 31 is shifted from the center line 5c of the blade mounting groove 5 by about 0.1mm in the radial direction. Here, the dimension F is a length in the circumferential direction of the edge portion formed by the through hole 2 and the blade mounting groove 5.
In this case, when the value Δ R is set to 0.5mm or more, the roll finishing shaft 31 interferes with the inner peripheral surface of the through-hole 2 except for the edge portion formed by the through-hole 2 and the blade mounting groove 5, and the possibility of damage or the like to the cylindrical workpiece is increased. Therefore, the optimum value of Δ R in this case is set to 0.4 mm. + -. 0.1. The optimum value of Δ R described here is a value related to the cylinder block 1 of the rotary compressor. Therefore, when machining a groove formed outward from the inner peripheral surface of another cylindrical workpiece, it is no problem to appropriately select Δ R in accordance with the size of the cylindrical workpiece.
Further, by the structure in which both ends of the roll finishing shaft 31 are supported so as to have a gap between both ends of the roll finishing shaft 31 and the first insertion hole 37a and the second insertion hole 37b, it is possible to prevent the roll finishing shaft 31 from being greatly deflected during machining as in the conventional cantilever fixing method. Therefore, partial uneven wear of the surface of the roll finishing shaft 31 can be prevented.
Further, since both ends of the roll finishing shaft 31 are not fixed, the roll finishing shaft 31 can rotate in the circumferential direction during the finishing. Therefore, the entire circumference of the roll finishing shaft 31 can be uniformly pressed against the blade mounting groove 5. Therefore, compared to the conventional cantilever-fixed method, partial uneven wear of the surface of the roll finishing shaft 31 can be prevented, the tool life can be greatly prolonged, and roll finishing can be performed with high accuracy.
Fig. 11 is a view showing the shape of the shaft surface after machining at 153.6 m/root using a conventional cantilever-fixed machining tool. Fig. 12 is a view showing the shape of the shaft surface after machining at 2304 m/workpiece using the both-end-support type machining tool according to embodiment 1 of the present invention. The term 153.6 m/piece means that the cumulative processing length of each roll finishing shaft is 153.6 m. 2304 m/root are also the same meaning. Further, the processing length of each workpiece was 0.0768 m.
As shown in fig. 11, when a conventional machining tool is used, uneven wear occurs on the surface of the roll finishing shaft 31 after machining at 153.6 m/root. However, as shown in fig. 12, when the machining tool 30 according to embodiment 1 was used, uneven wear did not occur on the surface of the barrel finishing shaft 31 even after machining at 2304 m/barrel, and improvement in tool life could be confirmed.
Fig. 13 is a graph showing the difference in surface pressure caused by the presence or absence of uneven wear on the surface of the roll finishing shaft. Fig. 13(a) shows a case where there is no uneven wear on the surface of the roll finishing shaft 31. Fig. 13(b) shows the case where the uneven wear is present on the surface of the roll finishing shaft 31. In fig. 13, the arrows indicate surface pressure distributions.
As shown in fig. 13(a), when the surface of the roll finishing shaft 31 is not unevenly worn, the roll finishing shaft 31 and the inner surface 5a of the blade mounting groove 5 are in contact with each other in a cylindrical-to-flat manner. Therefore, the surface pressure at the center of the cylinder increases, and the amount of plastic deformation, that is, the amount of improvement of the convex portion, during roll finishing becomes large.
On the other hand, as shown in fig. 13(b), when the surface of the roll finishing shaft 31 is unevenly worn and a flat surface is formed on the surface of the roll finishing shaft 31, the roll finishing shaft 31 and the inner surface 5a of the blade mounting groove 5 are in flat contact with each other. Therefore, the surface pressure is reduced, and the amount of plastic deformation, that is, the amount of improvement of the convex portion during roll finishing is also reduced. As described above, if uneven wear occurs on the surface of the roll finishing shaft 31, the machining performance deteriorates, and the tool life decreases. Therefore, the machining tool 30 according to embodiment 1, which can prevent uneven wear, is effective in improving the tool life.
As described above, in the machining tool 30 according to embodiment 1, both ends of the roll finishing shaft 31 are supported so as to have a gap between both ends of the roll finishing shaft 31 and each of the first insertion hole 37a and the second insertion hole 37b of the support portion 33. Therefore, the roll finishing shaft 31 can be prevented from being greatly bent during machining, and partial uneven wear of the surface of the roll finishing shaft 31 can be prevented. Therefore, the tool life can be greatly improved. Further, since the roll finishing shaft 31 can be prevented from being greatly deflected during the machining, the roll finishing can be performed uniformly and accurately on the entire inner surface of the blade mounting groove 5. Therefore, the surface properties of the inner surface of the blade mounting groove 5 can be finished to a smooth surface with less convex portions as shown in fig. 10.
Further, since the roll finishing shaft 31 is rotatable in the circumferential direction, the entire circumference of the roll finishing shaft 31 can be uniformly pressed against the blade mounting groove 5 during the finishing process. Therefore, even in this respect, partial uneven wear of the surface of the roll finishing shaft 31 can be prevented, the tool life can be greatly prolonged, and roll finishing can be performed with high accuracy. Further, since the tool life can be increased, mass production can be performed at low cost.
In the cylinder block 1 in which the inner surface of the vane mounting groove 5 is finished by using the roll finishing apparatus 100 according to embodiment 1, the friction coefficient of the inner surface of the vane mounting groove 5 is reduced. In this way, in the rotary compressor using the cylinder block 1 in which the friction coefficient of the inner surface of the vane mounting groove 5 is reduced, the vane can be slid in the vane mounting groove 5 without being hindered by the convex portion of the inner surface of the vane mounting groove 5 during operation. Therefore, the rotary compressor having high efficiency and high performance and having high sliding performance of the vane can be obtained.
In embodiment 1, a case in which the processing tool 30 can be moved up and down in the thickness direction of the cylinder block 1 and can be moved in the horizontal direction has been described. However, the present invention is not limited to the above-described configuration, and the configuration is not limited as long as the same movement can be performed relatively, such as fixing the processing tool 30 side and allowing the cylinder block 1 side to move in the thickness direction and the horizontal direction.
Fig. 14 is a schematic cross-sectional view of a processing tool of the roll finishing apparatus according to embodiment 2 of the present invention.
The machining tool 50 according to embodiment 2 has the following structure: the mounting shafts 51 attached to the elevating portion 11 of the tool moving device 10 are integrally formed with the support portions 52 that support both ends of the roll finishing shaft 31. A first insertion hole 52a and a second insertion hole 52b extending in the axial direction of the mounting shaft 51 are formed in the support portion 52 so as to be coaxial with each other. The second insertion hole 52b opens to the lower end surface 52c of the support portion 52, and the roll finishing shaft 31 is inserted through the opening. In order to prevent the roll finishing shaft 31 from falling out of the opening, the pressing plate 53 is fixed to the lower end surface 52c of the support portion 52 by a fastening screw 54.
The first insertion hole 52a and the second insertion hole 52b are separated from each other in the axial direction of the mounting shaft 51, and both ends of the roll finishing shaft 31 are inserted into and supported by the first insertion hole 52a and the second insertion hole 52b. The first insertion hole 52a and the second insertion hole 52b have the same clearance Δ R between the first insertion hole 37a and the second insertion hole 37b of embodiment 1 and the roll finishing shaft 31, respectively.
According to the machining tool 50 of embodiment 2 configured as described above, the same effects as those of embodiment 1 can be obtained, and the following effects can be obtained because the support portion 52 is configured so that the first support member 34 and the second support member 35 of embodiment 1 are integrated. That is, if the first support member 34 and the second support member 35 are formed separately, it is necessary to adjust the first insertion hole 37a and the second insertion hole 37b so as to be coaxial when assembling the machining tool 30. This is because the roll finishing shaft 31 is inclined if it is not coaxial, and therefore the roll finishing shaft 31 enters the blade mounting groove 5 in an inclined state during machining, and roll finishing cannot be performed with high accuracy.
On the other hand, the machining tool 50 according to embodiment 2 is configured such that the first insertion hole 52a for supporting one end of the roll finishing shaft 31 and the second insertion hole 52b for supporting the other end are formed as one member, and coaxial. Therefore, it is not necessary to perform coaxial adjustment when replacing the tool, and the tool can be easily replaced in a short time. In embodiment 2, by ensuring the first insertion hole 52a and the second insertion hole 52b to be coaxial, it is possible to avoid a problem that the roll finishing shaft 31 is inclined, and to easily perform roll finishing with high accuracy.
In addition, the machining tool 50 according to embodiment 2 is configured such that the mounting shaft 51 and the support portion 52 are integrally formed. In other words, the mounting shaft 32, the first support member 34, the second support member 35, and the fastening member 36 of embodiment 1 are integrally formed. By forming the processing tool 50 integrally in this manner, the rigidity of the processing tool can be increased as compared with a structure in which these members are formed separately. Further, by increasing the rigidity of the machining tool 50, tool replacement can be easily performed.
In fig. 14, the roll finishing shaft 31 is inserted from the lower portion of the machining tool 50, but may be inserted from the upper portion of the machining tool 50. The configuration is not limited as long as the roll finishing shaft 31 can be easily inserted into the first insertion hole 52a and the second insertion hole 52b.
Description of the reference numerals
A cylinder body; a through hole; a center of the through hole; a first fiducial hole; a second fiducial hole; a blade mounting groove; an inner side; a centerline; a tool moving device; a lifting portion; a sliding table; a ball screw; a drive arrangement; a guide; a body guide; a sliding table; a ball screw; a guide; a drive device; a machining tool; a central axis; a roll finishing shaft; a central axis; mounting a shaft; a support portion; a first support member; a second support member; a fastening component; a bolt; a nut; a first insertion hole; a second insertion hole; a workpiece holding device; a stage; a workpiece carrier table; a workpiece carrier table; a workpiece carrier table; a workpiece pressing portion; a first locator pin; 45... a second locating pin; a machining tool; mounting a shaft; 52.. a support portion; a first insertion hole; a second insertion hole; a lower end face; 53.. pressing plate; a fastening bolt.
Claims (6)
1. A machining tool for holding a shaft for roller burnishing used in a roller burnishing device for roller burnishing an inner surface of a groove formed outward from an inner peripheral surface of a cylindrical workpiece,
the machining tool is characterized in that,
the roll finishing machine is provided with a support part which supports both ends of the roll finishing shaft in a double manner so as not to fix both ends of the roll finishing shaft.
2. The machine tool of claim 1,
the support portion includes: a first support member that supports one end of the roll finishing shaft; a second support member that supports the other end of the roll finishing shaft; and a fastening member that fastens the first support member and the second support member.
3. The machine tool of claim 2,
the first support member is formed with a first insertion hole into which one end of the roll finishing shaft is inserted, and the second support member is formed with a second insertion hole into which the other end of the roll finishing shaft is inserted.
4. The machine tool of claim 3,
the first insertion hole and the second insertion hole have diameters larger than a diameter of the roll finishing shaft, and the roll finishing shaft is supported so as to have gaps between the first insertion hole and the roll finishing shaft and between the second insertion hole and the roll finishing shaft, respectively.
5. The machine tool according to any one of claims 2 to 4,
the present invention is directed to a tool moving device of a roll finishing device, and the tool moving device includes a mounting shaft mounted to the tool moving device, and the mounting shaft, the first support member, the second support member, and the fastening member are integrally formed.
6. A roller burnishing device is characterized in that,
a machining tool according to any one of claims 1 to 5.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2018/037447 WO2020070893A1 (en) | 2018-10-05 | 2018-10-05 | Machining tool and burnishing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112805118A true CN112805118A (en) | 2021-05-14 |
| CN112805118B CN112805118B (en) | 2023-05-02 |
Family
ID=70055397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880098187.XA Active CN112805118B (en) | 2018-10-05 | 2018-10-05 | Machining tool and roll finishing device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP7004839B2 (en) |
| CN (1) | CN112805118B (en) |
| CZ (1) | CZ309326B6 (en) |
| WO (1) | WO2020070893A1 (en) |
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| CN201744920U (en) * | 2010-04-30 | 2011-02-16 | 沈阳第一机床厂 | Roller burnishing tool for machining excircle, R surface and end surface |
| CN104625558A (en) * | 2013-11-11 | 2015-05-20 | 卡尔海因茨·哈恩 | Rolling tool |
| JP2015226971A (en) * | 2014-06-03 | 2015-12-17 | 三菱電機株式会社 | Groove finish machining method and device |
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| JPS57149114A (en) * | 1981-03-11 | 1982-09-14 | Mitsubishi Heavy Ind Ltd | Machining method of slit groove |
| JPS62152671A (en) * | 1985-04-25 | 1987-07-07 | Sanwa Niidorubearingu Kk | Small shaft with precision finish surface and precision surface finishing method and its machine |
| JPH0451968Y2 (en) * | 1986-02-04 | 1992-12-07 | ||
| SU1532279A1 (en) * | 1988-03-28 | 1989-12-30 | Могилевский Машиностроительный Институт | Tool for surface plastic deformation |
| JP3053339B2 (en) * | 1994-10-17 | 2000-06-19 | トーヨーエイテック株式会社 | Device for processing vane mounting groove of rotary compressor and processing method using the device |
| JP4939622B2 (en) * | 2010-03-24 | 2012-05-30 | 株式会社スギノマシン | Peening tool and processing method |
-
2018
- 2018-10-05 JP JP2020551062A patent/JP7004839B2/en active Active
- 2018-10-05 CN CN201880098187.XA patent/CN112805118B/en active Active
- 2018-10-05 WO PCT/JP2018/037447 patent/WO2020070893A1/en active Application Filing
- 2018-10-05 CZ CZ2021120A patent/CZ309326B6/en not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2332533Y (en) * | 1998-05-29 | 1999-08-11 | 余宗镇 | Automatic waxing appts. of polisher |
| WO2005084857A1 (en) * | 2004-03-03 | 2005-09-15 | Weidmer Stan C | Method and apparatus for patterning of bore surfaces |
| EP1721703A1 (en) * | 2005-05-13 | 2006-11-15 | General Electric Company | Method and apparatus for process control of burnishing |
| CN201744920U (en) * | 2010-04-30 | 2011-02-16 | 沈阳第一机床厂 | Roller burnishing tool for machining excircle, R surface and end surface |
| CN104625558A (en) * | 2013-11-11 | 2015-05-20 | 卡尔海因茨·哈恩 | Rolling tool |
| JP2015226971A (en) * | 2014-06-03 | 2015-12-17 | 三菱電機株式会社 | Groove finish machining method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CZ2021120A3 (en) | 2021-04-21 |
| JP7004839B2 (en) | 2022-01-21 |
| CZ309326B6 (en) | 2022-08-24 |
| CN112805118B (en) | 2023-05-02 |
| WO2020070893A1 (en) | 2020-04-09 |
| JPWO2020070893A1 (en) | 2021-06-03 |
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