JP2000354946A - Vane guide groove super-finishing method and apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a good surface roughness by superfinishing a sliding surface with a polishing tape and to surely superfine a sliding surface of a vane guide groove having a narrow groove width. it can. SOLUTION: The polishing tape T can be folded back and guided to a folded front end surface 35a and a line side portion T of the polishing tape to the folded front end surface.
₁ introduced guidable line side guide surface 35b and fold tip end face reversals portion T ₂ of the polishing tape derivable guided from a back side guide surface 35c are formed, the line-side guide surface and fold tip end surface and the back side guide the abrasive tape is fold transferred guided by a surface arranged to removably a turned-back guide 35 to the vane guide groove M _1,
An insertion / removal mechanism 22 for inserting / removing the polishing tape guided by the return guide by the return guide into / from the vane guide groove is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a super finishing method for a vane guide groove used for super finishing a sliding surface of a vane guide groove of a rotary compressor cylinder of, for example, a home air conditioner, and an apparatus therefor. .

[0002]

2. Description of the Related Art As shown in FIG. 12, a rotary compressor cylinder has a compression chamber W at the center of the cylinder W.
₁ is formed, the vane guide groove M for opening is formed in the compression chamber W _1, sliding surfaces M ₁ · M ₁ The vane guide groove M is facing
have.

Conventionally, as a device for finishing both sliding surfaces M ₁ and M ₁ of the vane guide groove M of a rotary compressor cylinder W of this kind, a reciprocating broaching device or a grinding process using a rotating grindstone is used. Devices are known.

[0004]

However, in the above-mentioned conventional machining method, in the case of broaching, the state of the tooth tip such as the surface roughness of the blade surface of the broach cutting tool is transferred to the surface of the sliding surface of the vane guide groove, or ground. In the case of processing, since the groove width of the vane guide groove is as narrow as about 3 to 5 mm, the thickness of the grindstone inserted into the groove has to be limited to less than that, so that the grindstone rigidity tends to decrease, It is desirable to use a grinding wheel that uses a rough grinding wheel with low resistance and good grindability, and in order to insert the grinding wheel into the cylinder compression chamber diameter without interference with the grinding wheel support, the support rigidity is limited due to space limitations. Therefore, there is an inconvenience that it may be difficult to stably secure good surface roughness.

[0005]

The object of the present invention is to solve such a problem.
The method according to claim 1 is characterized in that when the sliding surface of the vane guide groove of the cylinder constituting the compression chamber of the rotary compressor is super-finished by the polishing tape which is transported and guided, the polishing tape is folded back by a folding tip. Surface and a return side guide surface and a return side guide surface, and the sliding surface of the vane guide groove is super-finished by each surface of the return side portion and the return side portion of the polishing tape guided back. The vane guide groove super finishing method.

A second aspect of the present invention provides a polishing tape for superfinishing a sliding surface of a vane guide groove of a cylinder constituting a compression chamber of a rotary compressor, and a tape transfer mechanism for transferring the polishing tape. And a tape guide mechanism for transporting and guiding the polishing tape, and a folded front surface capable of guiding the polishing tape in a folded state, and a line side guide capable of introducing and guiding a line side portion of the polishing tape to the folded front surface. A return guide surface capable of guiding the return side portion of the polishing tape out from the surface and the folded front surface is formed, and the polishing tape guided by the return transfer surface by the line side guide surface and the folded front surface and the return side guide surface. The vane guide groove is provided with an insertable / removable return guide, and an insertion / removal mechanism for inserting / removing the polishing tape guided and returned by the return guide into / from the vane guide groove is provided. Bebe In the guide groove super-finishing equipment.

According to a third aspect of the present invention, there is provided a feed mechanism for feeding and moving the polishing tape in a direction intersecting the direction of transport of the polishing tape. According to a fourth aspect of the present invention, there is provided a vibration mechanism for oscillating the polishing tape in a direction in which the polishing tape is transported. The present invention is characterized in that a cross-oscillation mechanism for causing the above-described polishing tape to cross-oscillate in a direction intersecting with the transport direction of the polishing tape is provided.

According to a sixth aspect of the present invention, there is provided a press-contact method in which the surface of the row side portion or the return side portion of the polishing tape which is guided back by the return guide is sequentially pressed against each sliding surface facing the vane guide groove. The invention is characterized in that a line-side guide surface and a return-side guide surface of the turn-back guide are formed in parallel with each other. The folding guide is characterized in that it is formed in such a shape that both surfaces of the row side portion and the return side portion of the polishing tape guided back by the folding guide are simultaneously pressed against both sliding surfaces facing each other. .

[0009]

1 to 11 show an embodiment of the present invention. FIGS. 1 to 10 show a first embodiment and FIG. 11 shows a second embodiment.

In the first embodiment of FIGS. 1 to 10, W is a cylinder and T is a polishing tape. In this case, aluminum oxide, chromium oxide, It is formed by coating or bonding abrasive particles of a predetermined particle size such as silicon carbide and diamond.

Reference numeral 1 denotes a tape transport mechanism, and reference numeral 2 denotes a tape guide mechanism, which is configured to transport the polishing tape T continuously or intermittently while guiding the same.

In this case, the feed mechanism 4, the cross vibration mechanism 5 and the vibration mechanism 6 are arranged on the machine base 3 in a stacked manner, and the tape transfer mechanism 1 and the tape guide mechanism 2 are disposed on the vibration mechanism 6. It is set up and configured.

The feed mechanism 4 has a slide 7 movably disposed on the machine base 3 by a sliding portion 8 in a direction intersecting the transfer direction K of the polishing tape T. Feeding movement F
The feed cylinder 9 is provided.

The cross swing mechanism 5 is provided with a cross swing table 10 on a feed table 7 by a sliding portion 11 so as to be freely swingable in a direction intersecting the transport direction K of the polishing tape T, and The mounting piece 12 protrudes from the base 7, and the cross vibration motor 1 is mounted on the mounting piece 12.
The eccentric ring 14 is mounted vertically on the main shaft of the cross oscillation motor 13.
And two guide bodies 15 are mounted on the cross shaking table 10 so as to face each other with the eccentric wheel 14 interposed therebetween, and the eccentric rotation of the eccentric wheel 14 and the guide body 15 is driven by the cross shaking motor 13. The cross shaking table 10 is moved by the action to move the polishing tape T in the transport direction K.
The cross swing motion Q is performed in a direction intersecting with.

Further, the swinging mechanism 6 moves the shaking table 16 on the crossing shaking table 10 by the sliding portion 17 in the transport direction K of the polishing tape T.
Is mounted on the cross shaking table 10 so as to freely swing.
The oscillating motor 19 is vertically provided on the mounting piece 18, the eccentric wheel 20 is provided on the main shaft of the oscillating motor 19, and the oscillating table 16 is provided.
The two guide bodies 21 are mounted opposite to each other so as to sandwich the eccentric wheel 20, and the eccentric wheel 2 is driven by the oscillation motor 19.
The oscillating table 16 is configured to perform the oscillating motion S in the transport direction K of the polishing tape T by the eccentric rotation of the guide member 21 and the eccentric rotating mechanism 16.

Reference numeral 22 denotes an insertion / removal mechanism, and reference numeral 23 denotes a press-contact mechanism. In this case, a mounting member 24 is erected on the shaking table 16 and an actual winding reel 25 and a take-up reel of the polishing tape T are mounted on the mounting member 24. The reel 26 is axially mounted, the feed roll 27 and the sandwiching roll 28 are axially mounted, the support member 29 is provided on the mounting member 24 so as to be able to advance and retreat by the sliding portion 30, and the support member 29 is advanced and retracted by the mounting member 24. An insertion / removal cylinder 31 is attached, a pressure contact table 32 is vertically mounted on a support member 29 by a sliding portion 33 so as to be vertically slidable, and a pressure contact cylinder 34 for vertically moving the pressure contact table 32 is attached to the support member 29. 29
And a stopper member 36 capable of abutting on the lower surface of the folding guide 35 is attached to the support member 29,
The polishing tape T pulled out from the actual reel 25 is formed of a roll 37 protruding from the mounting member 24, a roll 38 protruding from the support member 29, and a pair of opposing guide rolls 39 and 40 protruding from the support member 29. The lower guide roll 39, the folding guide 35, the guide roll 40, the roll 41 protruding from the support member 29, and the roll 4 protruding from the mounting member 24.
2. It is wound around the take-up reel 26 between the feed roll 27 and the sandwiching roll 28 and via a roll 43 projecting from the mounting member 24, and the actual reel 25 is backed on the polishing tape T by the servomotor 44. The feed roller 27 and the take-up reel 26 are driven by a servo motor 45 to take up and drive while unwinding while applying tension.
45 is used to transfer the polishing tape T continuously or intermittently in one direction.

[0017] Also, the fold guide 35, the polishing tape T permits fold guiding a fold tip end surface 35a and the abrasive tape T line portion T ₁ to be introduced guide row side guide surface 35b to the fold tip end face 35a and fold tip end back side portion T ₂ to be derived guiding a back side guide surface from surface 35a abrasive tape T 35
c is formed, and the row-side guide surface 35b of the return guide 35 is formed.
And the return-side guide surface 35c are formed in parallel to each other, and the row-side guide surface 35b, the folded front end surface 35a, and the return-side guide surface 3
5c is formed so as to be insertable into and removable from the vane guide groove M.
The plate thickness as the separation distance between b and the return side guide surface 35c is H,
Assuming that the groove width between the sliding surfaces M ₁ and M ₁ is B and the thickness D of the polishing tape T is B> H + 2D, the both sides of the folding guide 35 guide the both side edges of the polishing tape T. A possible guide side 35d is formed upright, and a cutout 35e is formed in the guide side 35d so as to be flush with the row side guide surface 35b and the return side guide surface 35c.

Reference numeral 46 denotes a holding mechanism. In this case, a holding table 47 is erected on the machine base 3, and a positioning member 48 to which the cylinder W can be attached and detached is attached to the holding table 47.

Since the first embodiment has the above-described configuration, the polishing tape T is intermittently or continuously guided and transferred by the tape transfer mechanism 1 and the tape guide mechanism 2, and the polishing tape T is transferred to the folding guide 35. The return transfer guide is performed by the row side guide surface 35b, the return end surface 35a, and the return side guide surface 35c, and the polishing tape T guided back by the return guide 35 is compressed by the insertion / removal mechanism 22 into the compression chamber W of the rotary compressor cylinder W. _The polishing tape T is fed into the vane guide groove M by the feed mechanism 4 and is moved F by the feed mechanism 4, and the folding guide 35 is raised by the press-contact cylinder 34 of the press-contact mechanism 23 as shown in FIGS. pressed reversals portion T ₂ of the surface of the tape T on the sliding surface M ₁ of the upper vane guide grooves M, exchange the abrasive tape T by the intersection Yurafu mechanism 5 and Yurafu mechanism 6 in this pressed state Yurafu movement Q and Yurafu motion S is moved F sends an abrasive tape T with is a, thereby the sliding surface M ₁ of the upper vane guide groove M to finish ultra by polishing tape T, and, by pressing mechanism 23 Return guide 35
Is lowered to press the surface of the row side portion T ₁ of the polishing tape T against the lower sliding surface M ₁ of the vane guide groove M, and in this pressed state, the polishing tape is moved by the cross vibration mechanism 5 and the vibration mechanism 6. T is caused to cross and oscillate Q and S, and at the same time, the polishing tape T is fed and moved F. As a result, the polishing tape T super-finishes the lower sliding surface M ₁ of the vane guide groove M. When the superfinishing of the moving surfaces M ₁ and M ₁ is completed, the polishing tape T moves back into the compression chamber W ₁ and then retreats by the insertion / removal mechanism 22 to return to the original position.

In this case, the polishing tape T is folded back into a guide.
Folded tip surface 35a, line side guide surface 35b and return of 35
Turned back by the side guide surface 35c, polishing that was turned back
Row side part T of tape T₁And return side part T_TwoBy each surface of
Sliding surface M of vane guide groove M₁・ M₁To make the super finish
The sliding surface M by the polishing tape T₁・ M ₁To
With super finish, good surface roughness can be obtained
Sliding surface M of vane guide groove M, both of which have narrow groove width B₁・ M₁Make sure
Indeed, super finish can be achieved
Can be improved.

In this case, the polishing tape T is
The feed T in the direction intersecting the transfer direction K of the loop T
Since the feed mechanism 4 is provided, sliding of the vane guide groove M is performed.
Surface M ₁・ M₁Can be uniformly super finished and fed
It is possible to obtain good surface roughness by controlling the feed speed of the movement F.
In this case, the polishing tape T is
A oscillating mechanism 6 for oscillating motion S in the transfer direction K of the pump T is provided.
The surface roughness by the oscillating motion S
And, in this case, the polishing tape T
Cross oscillation movement in the direction intersecting with the transport direction K of the polishing tape T
Since the cross swing mechanism 5 for moving Q is provided,
A better surface roughness can be obtained by the vibration Q
You.

[0022] Also, in this case, the sliding surfaces M ₁ · a line portion T ₁ or Modogawa portion T ₂ of the surface of the abrasive tape T, which is turned-back guide facing the vane guide groove M by the fold guide 35 because by disposing the pressing mechanism 23 for sequentially pressed against the M _1, proper contact force of the line-side portion T ₁ or Modogawa portion T ₂ of the surface of the abrasive tape T and the sliding surfaces M ₁ · M ₁ And a good super finish can be achieved.

[0023] The second embodiment of FIG. 12 shows another example structure, in this case, both of the fold guide 35 a row-side portion of the abrasive tape T which is fold guided by fold guide 35 T ₁ and Modogawa portion T ₂ The sliding surfaces M ₁ and M ₁ are formed so as to be simultaneously pressed into contact with the sliding surfaces M ₁ and M ₁ , that is, the plate thickness as the separation distance between the row-side guide surface 35b and the return-side guide surface 35c is H, and the sliding surface M _1.
When the groove width between M ₁ B, the thickness D at the time of pressing the polishing tape T, is configured to form a B = H + 2D the relationship.

In the second embodiment, the same operation and effects as those of the first embodiment can be obtained, and both the sliding surfaces M ₁ and M ₁ can be simultaneously super-finished. Workability can be improved.

The present invention is not limited to the above embodiment. For example, in the above embodiment, the feed mechanism 4, the insertion / removal mechanism 22, and the press-contact mechanism 23 adopt a cylinder structure. A combination structure of a mechanism and a servomotor can be adopted.Also, although the above embodiment is a so-called dry structure, a wet structure in which a lapping agent or a cooling lubricant is sprayed toward the polishing tape T may be adopted. There also the elastic pad such as a synthetic resin with rubber or elastic and affixed to the row side guide surface 35b and the back-side guide surface 35c of the turnup guide 35, the polishing tape T line portion T ₁ or back of the elastic pad There is also possible to adopt a structure to buffer the pressure contact force between the side portion T ₂ and sliding surfaces M ₁ · M _1, other are designed appropriately changed.

[0026]

As described above, according to the present invention, the polishing tape is guided and transferred by the tape transfer mechanism and the tape guide mechanism, and the polishing tape is returned to the line-side guide surface of the folding guide. The folding tape is guided by the folding tip surface and the returning guide surface, and the polishing tape guided by the folding guide is inserted into the vane guide groove of the rotary compressor cylinder by the insertion / removal mechanism, and the polishing tape guided by the folding guide is returned. The sliding surface of the vane guide groove can be super-finished by the respective surfaces of the row side portion and the return side portion. By super-finishing the sliding surface with a polishing tape, good surface roughness can be obtained and the groove width can be increased. The sliding surface of the narrow vane guide groove can be reliably super-finished, and the workability of super-finishing can be improved accordingly.

According to the third aspect of the present invention, since a feed mechanism for feeding and moving the polishing tape in a direction intersecting with the direction of transport of the polishing tape is provided, the sliding surface of the vane guide groove is provided. Can be super-finished uniformly, and good surface roughness can be obtained by controlling the feed speed of the feed movement. In the invention according to the fourth aspect, the polishing tape is moved in the polishing tape transfer direction. Since the oscillating mechanism for oscillating motion is provided, a better surface roughness can be obtained by the oscillating motion, and in the invention according to claim 5, the polishing tape is made of a polishing tape. Since the cross-oscillation mechanism for performing the cross-oscillation motion in the direction intersecting with the transfer direction is provided, more favorable surface roughness can be obtained by the cross-oscillation motion.

Further, in the invention according to claim 6, the surface of the row side portion or the return side portion of the polishing tape guided back by the return guide is sequentially arranged on each sliding surface facing the vane guide groove. Since the press-contact mechanism for press-contact is provided, it is possible to obtain an appropriate press-contact force between the surface of the row side portion or the return side portion of the polishing tape and each sliding surface, thereby performing a good super finish. it can.

Further, in the invention according to claim 7, the folding guide is simultaneously pressed against both sliding surfaces where both surfaces of the row side portion and the returning side portion of the polishing tape guided by the folding guide face each other. Therefore, both sliding surfaces can be super-finished at the same time, and workability of super-finishing can be improved.

As described above, the intended purpose can be sufficiently achieved.

[Brief description of the drawings]

FIG. 1 is an overall front view of a first embodiment of the present invention.

FIG. 2 is an overall plan view of the first embodiment of the present invention.

FIG. 3 is an overall side view of the first embodiment of the present invention.

FIG. 4 is a partial front view of the first embodiment of the present invention.

FIG. 5 is a partial side view of the first embodiment of the present invention.

FIG. 6 is a partial perspective view of the first embodiment of the present invention.

FIG. 7 is a partially enlarged perspective view of the first embodiment of the present invention.

FIG. 8 is a partial plan sectional view of the first embodiment of the present invention.

FIG. 9 is a partial side sectional view of the first embodiment of the present invention.

FIG. 10 is a partial perspective view of the first embodiment of the present invention.

FIG. 11 is a partial side sectional view of a second embodiment of the present invention.

FIG. 12 is a perspective view of a cylinder for a rotary compressor.

[Explanation of symbols]

W Cylinder for rotary compressor M Vane guide groove M ₁ Sliding surface T Polishing tape T ₁ row side part T ₂ return side part F Feed direction K Tape transfer direction S Rocking motion Q Cross rocking motion 1 Tape transport mechanism 2 Tape Guide mechanism 4 Feeding mechanism 5 Cross oscillation mechanism 6 Oscillation mechanism 22 Insertion / extraction mechanism 23 Press-contact mechanism 35 Folding guide 35a Folding end face 35b Row side guide face 35c Return side guide face

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shohei Yamamoto 1006 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. F-term (reference) 3C058 AA05 AA09 AA11 AA14 AA16 AB03 AB04 CA01 CA02 CB01 DA10

Claims (7)

[Claims] When the sliding surface of a vane guide groove of a cylinder constituting a compression chamber of a rotary compressor is super-finished by a polishing tape which is transported and guided, the polishing tape is turned over by a folding guide surface and a line guide. The sliding surface of the vane guide groove is super-finished by each surface of the row side portion and the return side portion of the polishing tape guided by the turn back surface and the return side guide surface. Finishing method. 2. A polishing tape for superfinishing a sliding surface of a vane guide groove of a cylinder constituting a compression chamber of a rotary compressor, a tape transfer mechanism for transferring the polishing tape, and a tape for transferring and guiding the polishing tape. A guide mechanism, and a folded front surface capable of guiding the polishing tape in a folded manner; a row side guide surface capable of introducing and guiding a row side portion of the polishing tape to the folded front surface; and a polishing tape from the folded front surface. A return side guide surface is formed to guide the return side portion. The return side guide surface, the return end surface and the return side guide surface allow the polishing tape to be returned and guided by the return side guide surface into the vane guide groove. A vane guide groove super-finishing device, comprising a guide, and an insertion / removal mechanism for inserting / removing the polishing tape guided by the return guide into / from the vane guide groove. 3. The vane guide groove super-finishing device according to claim 2, further comprising a feed mechanism for feeding and moving said polishing tape in a direction intersecting with the direction of transport of said polishing tape. 4. The vane guide groove super-finishing device according to claim 2, wherein a swinging mechanism for swinging the polishing tape in the direction of transport of the polishing tape is provided. 5. A cross-oscillation mechanism for cross-oscillatingly moving said polishing tape in a direction intersecting with a direction in which said polishing tape is transported is provided.
The vane guide groove super-finishing device described in the above. 6. A pressing mechanism for sequentially pressing a surface of a row side portion or a return side portion of the polishing tape guided back by the return guide to each sliding surface facing the vane guide groove. The vane guide groove super-finishing device according to claim 2, characterized in that: 7. A row guide surface and a return guide surface of the return guide are formed in parallel to each other, and the return guide is formed of a row side portion and a return side portion of the polishing tape that is guided back by the return guide. 6. A vane guide groove super-finishing device according to claim 2, wherein both surfaces are formed so as to be pressed against both facing sliding surfaces at the same time.