CN102848023B - Inner cavity chamfering device for freezer compressor piston - Google Patents
Inner cavity chamfering device for freezer compressor piston Download PDFInfo
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- CN102848023B CN102848023B CN201210282771.5A CN201210282771A CN102848023B CN 102848023 B CN102848023 B CN 102848023B CN 201210282771 A CN201210282771 A CN 201210282771A CN 102848023 B CN102848023 B CN 102848023B
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- sliding axle
- bearing
- chamfering
- piston
- cutting tip
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Abstract
The invention discloses an inner cavity chamfering device for a freezer compressor piston. The inner cavity chamfering device comprises a mounting flange, a sliding shaft, a sliding sleeve, a pin shaft, a cutting blade, a sliding shaft offsetting spring, a blade offsetting spring, a bearing and a bearing support block. The sliding sleeve is fixedly connected with the mounting flange, the sliding shaft is mounted in the sliding sleeve and can slide along the axial direction, the sliding shaft is provided with a mounting groove, the cutting blade is mounted in the mounting groove, the rear end of the cutting blade is connected with the sliding shaft through a pin shaft, the front end of the cutting blade is provided with two horn-shaped cutting edges, the rear end bottom of the cutting blade abuts on the blade offsetting spring arranged on the sliding shaft, two ends of the sliding shaft offsetting spring respectively abut on the sliding shaft and the mounting flange, the sliding shaft passes through the bearing and the bearing support block and supports the bearing, and the cutting edge end of the cutting blade is located at the outside of the bearing support block. With the adoption of the device provided by the invention, the inner chamber of the piston can be cut accurately, so that the following assembly is facilitated, and the stability of the compressor performance is guaranteed.
Description
Technical field
The present invention relates to a kind of device that the parts-piston of freezer compressor is carried out to chamfer machining.
Technical background
Piston is the vital part of freezer compressor, bears moving back and forth to change volume of cylinder and realize air-breathing-exhaust " acting " in cylinder-bore of task.In the processing technology of piston, piston cavity chamfering is the weak link that technique is carried out always.Shown in Fig. 1, be existing a kind of piston 10, the centre of piston pin hole 1 is with the inner chamber chamfering 2 of 0.3*45 °.Because piston cavity width only has 10mm～14.8mm, thereby piston cavity chamfering 2 all adopts ball cutter 3 to carry out the processing technology (as shown in Figure 2) of artificial chamfering operation at present, piston 10 is moved to piston pin hole to align with the bulb of ball cutter 3, when chamfering, hand-held piston 10 swings up and down, in operating process, can exist like this operability not good, part chamfering is inhomogeneous, partial portion is without problems such as chamferings, it is tight that in Hou road assembling process, the burr at inner chamber chamfering place can cause assembling feel, residual burr even likely affects the cleannes of complete machine, cause the stuck fault of plucking of compressor.
Summary of the invention
Technical problem to be solved by this invention is to propose a kind of inner chamber facing attachment of the piston for refrigerator compressor that can accurately cut out piston cavity chamfering.
For solving the problems of the technologies described above, the inner chamber facing attachment of a kind of piston for refrigerator compressor of the present invention comprises mounting flange, sliding axle, slip cap, bearing pin, cutting tip, sliding axle back-moving spring, blade back-moving spring, bearing and Bearing support piece, described slip cap and described mounting flange are fixedly linked, described sliding axle is arranged in described slip cap and can slides axially, and described sliding axle can not be rotated by relatively described slip cap, described sliding axle is provided with mounting groove, described cutting tip is located in described mounting groove, the rear end of described cutting tip is connected with described sliding axle by described bearing pin, the front end of described cutting tip is provided with two " eight " shape cutting edges, the bottom, rear end of described cutting tip is against on the described blade back-moving spring of being located on described sliding axle, the two ends of described sliding axle back-moving spring are against respectively on described sliding axle and described mounting flange, described sliding axle passes described bearing and Bearing support piece and is bearing on described bearing, the cutting edge end of described cutting tip is positioned at the outside of described Bearing support piece.
The inner chamber facing attachment of above-mentioned a kind of piston for refrigerator compressor, it also comprises chamfering angle size adjustment screw, described chamfering angle size adjustment screw is located in hole set on described cutting tip upper rear end, described slip cap.
The inner chamber facing attachment of above-mentioned a kind of piston for refrigerator compressor, it also comprises that chamfering regulates by piece and clamp nut, described sliding axle regulates by piece through described chamfering, described chamfering regulates by piece and is positioned at described bearing outside, described chamfering regulates and is located in the set through hole of described Bearing support piece by piece, and described clamp nut is connected to described chamfering and regulates the outside by piece.
The inner chamber facing attachment of above-mentioned a kind of piston for refrigerator compressor, described sliding axle is connected by the syndeton of key-keyway with slip cap.
The present invention is owing to having adopted above-mentioned technical pattern, the cutting edge of cutting tip can design according to piston cavity width dimensions, when use, piston pin hole is inserted in facing attachment sliding axle, under rotational motion mechanism drives, sliding axle and cutting tip rotate, and inner chamber is carried out to chamfer machining.When normality, under the effect of back-moving spring, cutting tip is located in mounting groove, and in process, piston is inserted in sliding axle impeller-hub breasting piece, depresses cutting tip one end it is rotated around bearing pin, the cutting edge of cutting tip stretches out, and completes the chamfer machining of piston cavity both sides simultaneously.Thereby, utilize apparatus of the present invention can accurately cut out the inner chamber chamfering of piston, be conducive to the assembling of rear road, and ensured the stability of compressor performance.Utilize chamfering to regulate by piece and chamfering angle size adjustment screw, can adjust uniformity and the chamfering angle size of inside and outside both sides chamfering respectively.
Brief description of the drawings
Fig. 1 is the structural representation of the inner chamber chamfering of piston;
Fig. 2 is existing piston cavity chamfer machining process schematic representation;
Fig. 3 is the structural representation of piston cavity facing attachment of the present invention;
Fig. 4 is the structural representation of sliding axle;
Fig. 5 is that A-A in Fig. 4 is to cross-sectional view;
Fig. 6 is that B-B in Fig. 5 is to cross-sectional view.
Detailed description of the invention
As shown in Figure 3, piston cavity facing attachment of the present invention comprises mounting flange 11, sliding axle 12, slip cap 13, bearing pin 14, cutting tip 15, sliding axle back-moving spring 16, blade back-moving spring 17, bearing 18, Bearing support piece 19, chamfering angle size adjustment screw 20, chamfering regulates by piece 21 and clamp nut 22, slip cap 13 is fixedly linked by screw 23 with mounting flange 11, sliding axle 12 is arranged in slip cap 13, sliding axle 12 can slide axially along inner chamber, sliding axle 12 is connected by the syndeton of key-keyway with slip cap 13, having limited sliding axle 12 rotates with respect to slip cap 13.Please refer to Fig. 4, Fig. 5 and Fig. 6, sliding axle 12 is provided with mounting groove 24, cutting tip 15 is located in mounting groove 24, the rear end of cutting tip 15 is connected with sliding axle 12 by bearing pin 14, pin-and-hole 26, the front end of cutting tip 15 is provided with two " eight " shape cutting edges 25, can cut the Hole chamfering of two end faces of piston pin hole simultaneously.Blade back-moving spring 17 is located in cavity 27 set on sliding axle 12 inwalls, and the bottom, rear end of cutting tip 15 is against on blade back-moving spring 17, and under the promotion of blade back-moving spring 17, cutting tip 15 is around bearing pin 14 spinning reductions.Under rotational motion mechanism drives, slip cap 13 can drive cutting tip 15 to rotate.The two ends of sliding axle back-moving spring 16 are against respectively on sliding axle 12 and mounting flange 11, and sliding axle 12 can eject and reset outward under the effect of back-moving spring 16.Chamfering regulates by piece 21 and is located in the set through hole of Bearing support piece 19, sliding axle 12 regulates by piece 21 and is bearing on bearing 18 through bearing 18, Bearing support piece 19 and chamfering, chamfering regulates the outside that is positioned at bearing 18 by piece 21, and the cutting edge end of cutting tip 15 is positioned at Bearing support piece 19 and chamfering regulates the outside by piece 21.Clamp nut 22 is connected to chamfering and regulates the outside by piece 21.Chamfering angle size adjustment screw 20 is located in hole set in the upper rear end, slip cap 13 of cutting tip 15.When installation, by bearing holder (housing, cover) anti-rotation holder 28, bearing 18, Bearing support piece 19 are fixed on work top 29.
The method of operating of facing attachment of the present invention is as follows: 1, piston pin hole is inserted in sliding axle, promotes chamfering and regulate by piece on earth, chamfering completes, and exits piston; 2, visual inspection piston cavity both sides chamfering angle size, if both sides chamfering angle size differs greatly, unscrews clamp nut, regulates as follows: chamfering is regulated and turned clockwise by piece, can tune up outside chamfering; Chamfering is regulated and is rotated counterclockwise by piece, and adjustable large inner side chamfering, tightens clamp nut again after having regulated.3, both sides chamfering uniformity is adjusted to better after, then visual inspection entirety chamfering angle size, as need are adjusted chamfering entirety size: be screwed into chamfering angle size adjustment screw and can increase piston cavity chamfering; The chamfering angle size adjustment screw of back-outing can reduce piston cavity chamfering.
Claims (4)
1. the inner chamber facing attachment of a piston for refrigerator compressor, it is characterized in that, it comprises mounting flange, sliding axle, slip cap, bearing pin, cutting tip, sliding axle back-moving spring, blade back-moving spring, bearing and Bearing support piece, described slip cap and described mounting flange are fixedly linked, described sliding axle is arranged in described slip cap and can slides axially, and described sliding axle can not be rotated by relatively described slip cap, described sliding axle is provided with mounting groove, described cutting tip is located in described mounting groove, the rear end of described cutting tip is connected with described sliding axle by described bearing pin, the front end of described cutting tip is provided with two " eight " shape cutting edges, the bottom, rear end of described cutting tip is against on the described blade back-moving spring of being located on described sliding axle, the two ends of described sliding axle back-moving spring are against respectively on described sliding axle and described mounting flange, described sliding axle passes described bearing and Bearing support piece and is bearing on described bearing, the cutting edge end of described cutting tip is positioned at the outside of described Bearing support piece.
2. the inner chamber facing attachment of a kind of piston for refrigerator compressor as claimed in claim 1, is characterized in that, it also comprises chamfering angle size adjustment screw, and described chamfering angle size adjustment screw is located in hole set on described cutting tip upper rear end, described slip cap.
3. the inner chamber facing attachment of a kind of piston for refrigerator compressor as claimed in claim 1 or 2, it is characterized in that, it also comprises that chamfering regulates by piece and clamp nut, described sliding axle regulates by piece through described chamfering, described chamfering regulates by piece and is positioned at described bearing outside, described chamfering regulates and is located in the set through hole of described Bearing support piece by piece, and described clamp nut is connected to described chamfering and regulates the outside by piece.
4. the inner chamber facing attachment of a kind of piston for refrigerator compressor as claimed in claim 1 or 2, is characterized in that, described sliding axle is connected by the syndeton of key-keyway with slip cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210282771.5A CN102848023B (en) | 2012-08-10 | 2012-08-10 | Inner cavity chamfering device for freezer compressor piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210282771.5A CN102848023B (en) | 2012-08-10 | 2012-08-10 | Inner cavity chamfering device for freezer compressor piston |
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| Publication Number | Publication Date |
|---|---|
| CN102848023A CN102848023A (en) | 2013-01-02 |
| CN102848023B true CN102848023B (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210282771.5A Active CN102848023B (en) | 2012-08-10 | 2012-08-10 | Inner cavity chamfering device for freezer compressor piston |
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| CN (1) | CN102848023B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106112127B (en) * | 2016-08-22 | 2018-04-06 | 盐城市宏宇造纸机械有限公司 | A kind of chamfering device and its application method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3839423A1 (en) * | 1988-11-23 | 1990-05-31 | Heule Heinrich | DEBURRING TOOL WITH CUTTING KNIFE |
| JP2002018641A (en) * | 2000-07-06 | 2002-01-22 | Omi Kogyo Co Ltd | Chamfering cutter |
| KR100596096B1 (en) * | 2006-04-11 | 2006-07-03 | 삼우정공 주식회사 | Cutting tool and forming method of rounding at corner of radiating hole of piston pin for ship engine |
| CN201136058Y (en) * | 2007-12-28 | 2008-10-22 | 上海乾通汽车附件有限公司 | Chamfering machine for producing piston pins for automobile |
| JP5363184B2 (en) * | 2009-05-07 | 2013-12-11 | 武則 富永 | Handy type chamfering device |
| CN201815666U (en) * | 2010-06-10 | 2011-05-04 | 叶可地 | Automatic double-end plane chamfering machine |
| CN202263950U (en) * | 2011-09-14 | 2012-06-06 | 洛阳德平机械设备有限公司 | Axial adjustment mechanisms for toolbars of pipe beveling machine |
| CN202741852U (en) * | 2012-08-10 | 2013-02-20 | 加西贝拉压缩机有限公司 | Inner cavity chamfering device for refrigerator compressor piston |
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- 2012-08-10 CN CN201210282771.5A patent/CN102848023B/en active Active
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