CN103042416B - Piston pin hole boring equipment free of generating cutter returning lines - Google Patents
Piston pin hole boring equipment free of generating cutter returning lines Download PDFInfo
- Publication number
- CN103042416B CN103042416B CN201210577733.2A CN201210577733A CN103042416B CN 103042416 B CN103042416 B CN 103042416B CN 201210577733 A CN201210577733 A CN 201210577733A CN 103042416 B CN103042416 B CN 103042416B
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- pin hole
- piston
- piston pin
- ladder
- positioning
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Abstract
The invention discloses piston pin hole boring equipment free of generating cutter returning lines. The piston pin hole boring equipment comprises a positioning device and a compressing device, wherein the positioning device is used for holding a piston to be processed, the compressing device is arranged above the positioning device, the positioning device comprises a positioning body and a positioning seat which are fittingly mounted in a baseboard positioning hole, the positioning body and the positioning seat are structured in stepped inner holes and a stepped outer circle which are mutually matched, a disc spring for supporting the positioning seat is mounted between the positioning body and the positioning seat, and the compressing device comprises an air cylinder and a follow-up compression disc below the air cylinder. V-shaped iron for supporting one lateral side of the piston is arranged at the position, corresponding to the side of the piston to be processed, behind the positioning device, and a positioning bolt for detecting whether the central line of the piston pin hole is accordant with axial feeding direction of a cutter or not is arranged on a support. The piston pin hole boring equipment is simpler and more practical, is beneficial to adjustment due to improvement of a positioning structure, and can achieve the purpose of eliminating the cutter returning lines.
Description
Technical field
The right boring piston pin hole device that the present invention relates to piston manufacturing, is after piston precision bored hole, by piston axial displacement, gets out of the way a kind of device that boring cutter avoids producing back knife mark.
Background technology
Piston is when precision bored hole, conventionally adopt artificial orientation to make point of a knife be in pin-and-hole relief chamber one side, can not produce back knife mark (because relief chamber is greater than pin-and-hole diameter), as there is no a relief chamber, when withdrawing, just produce back knife mark (cut), also a kind of elastic device of design having, moves piston, thereby dodge point of a knife, no longer produces back knife mark.
In industry, also have and adopt advanced numerical control device and hydraulic servo equipment, reach the function of the cutter that rises, withdrawing, avoid producing back knife mark, but this equipment price is expensive, produces uneconomical.
Summary of the invention
For overcoming above-mentioned technical problem, while the invention provides high, the low-cost boring piston pin hole that is applicable to produce in enormous quantities of a kind of automaticity, do not produce back the device of knife mark.
For solving the problems of the technologies described above the present invention, realize by the following technical solutions: a kind of boring piston pin hole does not produce back the device of knife mark, comprise the base plate being arranged on boring table, the positioner of the processed piston of one placement is set in base plate, and the top of described positioner also arranges a hold down gag corresponding with positioner by the support being fastened on base plate; Described positioner comprises that cooperation is arranged on the location body in base plate locating hole, location body is one to have ladder endoporus and the body of the ladder cylindrical that coordinates with base plate endoporus, one positioning seat with ladder cylindrical is installed in the ladder endoporus of location body, in the bottom surface of the large ladder cylindrical of positioning seat, is laid disk spring with locating between the plane of ladder endoporus of body; Described hold down gag comprises the cylinder being fixedly mounted in support top flange, is provided with the cylinder rod servo-actuated platen that connect, that position is corresponding with the top of processed piston with cylinder below support top flange.
The location of the present invention further concrete structure of body is: the endoporus of described location body is the ladder endoporus with three different-diameters, the cylindrical of described positioning seat be have two different-diameters respectively with the location large ladder endoporus of body and the ladder cylindrical that little ladder endoporus coordinates, the ladder cylindrical that described disk spring is placed on positioning seat with locate in the formed annular space of ladder endoporus of body.
The location of the present invention further concrete structure of body is: in the upper plane of location body, be provided with the spacing pressure ring of restriction positioning seat upper limit position, the internal diameter of spacing pressure ring coordinates with the cylindrical of piston.
The location of the present invention further concrete structure of body is: on the cylindrical of described location body, be provided with the adjusting nut of adjusting location body and positioning seat height; In the side of base plate, be provided with the lock-screw corresponding with the cylindrical of locating body; Between the location little ladder endoporus of body and the little ladder cylindrical of positioning seat, be also provided with axial dive key.
Further concrete structure of the present invention is: between the cylinder rod of described servo-actuated platen and cylinder, by universal joint, be connected.
Further concrete structure of the present invention is: after positioner, base plate above the position of corresponding processed piston side also by bent plate, be provided with the V shape iron of support piston side.
The further improvement of technique scheme of the present invention is: described V shape iron is fixed on the side on bent plate top by the second hexagon socket head cap screw, and the centre position of V shape iron is provided with for adjusting the strip hole through the second hexagon socket head cap screw of V shape iron upper-lower position; On the transverse slat that the bottom of bent plate coordinates with base plate, be also provided with the strip hole of adjusting V shape iron front and back position, bent plate is fixed on base plate by the first hexagon socket head cap screw through this strip hole.
Further concrete structure of the present invention is: on support, the position at corresponding processed piston pin hole center arranges the processed piston pin hole center line of a detection and cutter shaft to the bolt of angle between direction of feed.
The further improvement of technique scheme of the present invention is: described bolt is threaded connection and is arranged in T shape piece, and T shape piece is arranged on the side of support by the 6th hexagon socket head cap screw, be also provided with locking nut on bolt.
Owing to having adopted technique scheme, the technological progress that the present invention obtains is: the device of the piston that is installed of the present invention, and automaticity is high, manufactures simply, and low price, is applicable to produce in enormous quantities, when boring piston pin hole, does not produce back knife mark.When processed piston is placed into after positioner, by hold down gag, piston is pressed on positioner, and produces certain amount of moving down; After processing the pin-and-hole of piston, hold down gag rises, and under the effect of the elastic force of piston in positioner, the distance of several millimeters of moving up, make pin-and-hole get out of the way the point of a knife of cutter, thereby when withdrawing, point of a knife can not scratch the pin-and-hole of piston.Location of the present invention body, positioning seat adopt multi-ladder hole and multi-ladder cylindrical, make piston position in moving up and down process accurate, and error is little, and the elastic force of disk spring is larger, is conducive to the stable support of piston.Spacing pressure ring can prevent on the body of the outstanding location of positioning seat, and the internal diameter of spacing pressure ring and the cylindrical of piston coordinate, and piston can be put in spacing pressure ring, and piston is accurately located.
By rotation, locate the adjusting nut on body cylindrical, can adjust the height of location body and positioning seat, to adapt to the piston of different sizes; When the different piston of processing, adjusting after the height of location body can rotation lock screw, location body is held out against fixing, prevents that the height of locating body from changing.
Between the cylinder rod of servo-actuated platen of the present invention and cylinder, by universal joint, be connected, can make servo-actuated platen automatically and the upper surface of piston aligns.
V shape iron of the present invention is that the circumference of piston is close at V shape iron, has just realized accurate location for processed piston side provides location.V shape iron is installed fixing by the bent plate with strip hole, make V shape iron can realize the adjustment of upper and lower and front and back position, to adapt to the processing of the piston of different sizes.
The bolt arranging on support of the present invention, for detecting processed piston pin hole center line and cutter shaft to whether becoming straight line between direction of feed, during detection, the end face of bolt is adjusted to the theoretical required value of pin-and-hole after right boring to the distance of processed piston pin hole center line, then with locking nut, bolt is locked.In processed piston pin hole, insert an alignment pin rod, the path of alignment pin rod coordinates with the piston pin hole diameter after heavy boring, and large footpath is the numerical value of pin-and-hole after right boring.Alignment pin rod miner diameter end is inserted in the pin-and-hole of piston after heavy boring, make the alignment pin rod cylindrical of bigger diameter end and the end contact of bolt, be finished surface to location, prove that piston pin hole center line is consistent to direction of feed with cutter shaft, after clamping piston, can carry out piston pin hole right boring.Bolt is arranged in T shape piece, and T shape piece also can move up and down, and adjusts the height of bolt, makes this height consistent with processed piston pin hole center line height.
Device of the present invention is used on common boring machine, and after Piston Machining, the elasticity by disk spring makes piston axially produce micro-displacement, thereby dodges out the point of a knife on boring bar and do not produce back knife mark.
Accompanying drawing explanation
In order to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the present invention is described in further detail, wherein:
Fig. 1 is that general structure master of the present invention looks schematic diagram;
Fig. 2 is general structure schematic side view of the present invention;
Fig. 3 is general structure schematic top plan view of the present invention;
Fig. 4 is the structural representation of location of the present invention body;
In figure: 1. base plate, 2. support, 3. bent plate, 4. the tenth hexagon socket head cap screw, 5. positioning key, 6. plain cushion, 7. spring washer, 8. the first hexagon socket head cap screw, 9. the second hexagon socket head cap screw, 10.V shape iron, 11. the 3rd hexagon socket head cap screws, 12. cylinders, 13. location bodies, 14. adjusting nuts, 15. disk springs, 16. positioning seats, 17. spacing pressure rings, 18. lock-screws, 19. the 4th hexagon socket head cap screws, 20. the 5th hexagon socket head cap screws, 21.T shape piece, 22. the 6th hexagon socket head cap screws, 23. spring washers, 24. locking nuts, 25. dog screws, 26. the 7th hexagon socket head cap screws, 27. the 8th hexagon socket head cap screws, 28. dive keys, 29. the 9th hexagon socket head cap screws, 30. servo-actuated platens, 31. alignment pin rods.
The specific embodiment
Boring piston pin hole does not produce back a device for knife mark, referring to accompanying drawing 1～4.This device comprises the base plate 1 being arranged on boring table, has a locating hole on base plate 1, and a positioner is set in the locating hole of base plate, places processed piston in positioner.The top of positioner also arranges a hold down gag corresponding with positioner, hold down gag is arranged on a support 2, support 2 is fixed on base plate 1, between support 2 and base plate 1, be provided with positioning key 5, support 2 can, by the position before and after adjusting along the movement of positioning key 5, then be fixed support 2 and base plate 1 with hexagon socket head cap screw.Positioner comprises the location body 13 being arranged in base plate 1 endoporus, and location body 13 is one to have ladder endoporus and the body of the ladder cylindrical that coordinates with base plate 1 endoporus, and the endoporus of locating body 13 has three ladders, for having the ladder endoporus of three different-diameters.In the ladder endoporus of location body 13, coordinate installation one to have the positioning seat 16 of ladder cylindrical, the cylindrical of positioning seat 16 has two different-diameters, and they coordinate with large ladder endoporus and the little ladder endoporus of location body 13 respectively.Between positioning seat 16 and location body 13, disk spring 15 is installed, disk spring 15 is placed between the bottom surface of positioning seat 16 large ladder cylindricals and the plane of the ladder endoporus of location body 13, and disk spring 15 is placed in the ladder cylindrical of positioning seat 16 and the formed annular space of ladder endoporus of location body 13.Disk spring 15, for supporting and location seat 16, makes the upper plane of positioning seat 16 and locates plane parallel on body 13, and when putting piston and being pressed down on positioning seat 16, disk spring can be out of shape at least 0.02mm downwards.
The spacing pressure ring 17 that is provided with restriction positioning seat 16 upper limit positions in the upper plane of the location of positioner body 13, the internal diameter of spacing pressure ring coordinates with the cylindrical of piston, piston is placed on that spacing pressure ring is interior, positioning seat 16 above.On the large ladder cylindrical of location body 13, have screw thread, and at the screw thread place of location body 13, an adjusting nut 14 is set, adjusting nut 14 is used for adjusting location body 13 and positioning seat 16 height, to adapt to different large valve pistons.One lock-screw 18 is set in the side of base plate 1, and it is corresponding with the little ladder cylindrical of location body 13 that lock-screw 18 is horizontally through base plate, holds out against location body during lock-screw 18 precession.Between the location little ladder endoporus of body 13 and the little ladder cylindrical of positioning seat 16, be also provided with dive key 28, dive key 28 is for making positioning seat 16 move axially along location body 13, and dive key 28 is arranged on the little ladder cylindrical of positioning seat 16 by the 9th hexagon socket head cap screw 29.
Described hold down gag comprises a cylinder 12, cylinder 12 is fixedly mounted on the flange at support 2 tops by the 3rd hexagon socket head cap screw 11, one servo-actuated platen 30 is set below support 2 top flange, servo-actuated platen 30 is connected with the cylinder rod of cylinder 12, and the position of servo-actuated platen 30 is corresponding with the top of processed piston.Between the cylinder rod of servo-actuated platen 30 and cylinder 12, by universal joint, be connected.
One V shape iron 10 is set in the side of processed piston, fixedly mounts a bent plate 3 after positioner, V shape iron 10 is arranged on the side of bent plate 3.V shape iron 10 is positioned at the top of base plate 1, and the V-type mouth of V shape iron 10 is corresponding with the periphery of processed piston, for the periphery of piston provides location.
Described V shape iron 10 is fixed on bent plate 3 tops by the second hexagon socket head cap screw 9, the centre position of V shape iron 10 is provided with strip hole, and the second hexagon socket head cap screw 9 is through this strip hole, and V shape iron 10 is fixing, when unclamping the second hexagon socket head cap screw 9, V shape iron 10 can be adjusted position up and down.Bent plate 3 is L-type structure, and a transverse slat is arranged at the bottom of bent plate 3, and transverse slat coordinates with base plate 1, is also provided with strip hole on transverse slat, is used for adjusting V shape iron 10 front and back positions.The first hexagon socket head cap screw 8 is fixed on bent plate on base plate 1 through this strip hole.
A side at support 2 also arranges a T shape piece 21, and T shape piece 21 is arranged on the side of support 2 by the 6th hexagon socket head cap screw 22, on T shape piece 21, a screwed hole is set, and a bolt 25 is set.The height of bolt 25 is consistent with the height at processed piston pin hole center, is to realize the processing to the large valve piston of difference by adjusting the height of T shape piece 21.Whether bolt 25 is used for detecting processed piston pin hole center line consistent to direction of feed with cutter shaft, is processed piston pin hole center line location is provided.On bolt 25, be also provided with locking nut 24.
In positioning seat, pack into after the body of location, guarantee that the upper plane of location body exceeds 0.02 than positioning seat, then pack disk spring into, the spacing pressure ring of rear use compresses, and with plain cushion, spring washer and the first hexagon socket head cap screw, compresses locked.What piston was put into spacing pressure ring, positioning seat realizes above the location that Z-direction is vertical direction, and then piston, again by V shape iron 10 and dog screw 25 location, makes cylinder rod stretch out after accurate positioning, and servo-actuated platen 30 is depressed; According to boring bar height, piston-top surface, to pin-and-hole centre distance, can adjust by adjusting nut 14 position of piston pin hole; With lock-screw 18, withstand location body 13 afterwards.
After adjustment finishes, can carry out the processing of pin-and-hole, after processing, boring cutter point of a knife is rushed to, then make cylinder 12 upwards, when servo-actuated platen 30 rises, positioning seat 16 is subject to the elastic force of disk spring 15, mobile 0.02mm vertically upward, piston pin hole gets out of the way point of a knife, then travelling table, makes boring bar exit piston pin hole, complete the processing of pin-and-hole, so just avoided the generation of time knife mark.Device provided by the invention is relatively simple, practical, by the improvement of location structure, is beneficial to adjustment, has reached again the object of removing back knife mark.
Claims (9)
1. a boring piston pin hole does not produce back the device of knife mark, it is characterized in that: comprise the base plate (1) being arranged on boring table, the positioner of the processed piston of one placement is set in base plate (1), and the top of described positioner also arranges a hold down gag corresponding with positioner by the support (2) being fastened on base plate (1); Described positioner comprises the location body (13) being arranged in base plate (1) locating hole, location body (13) is one to have ladder endoporus and the body of the ladder cylindrical that coordinates with base plate (1) endoporus, in the ladder endoporus of location body (13), coordinate installation one to there is the positioning seat (16) of ladder cylindrical, between the bottom surface of large ladder cylindrical of positioning seat (16) and the plane of the ladder endoporus of location body (13), lay disk spring (15); Described hold down gag comprises the cylinder (12) being fixedly mounted in support (2) top flange, is provided with the cylinder rod servo-actuated platen (30) that connect, that position is corresponding with the top of processed piston with cylinder (12) in the below of support (2) top flange.
2. boring piston pin hole according to claim 1 does not produce back the device of knife mark, it is characterized in that: the ladder endoporus of described location body (13) is the ladder endoporus with three different-diameters, the ladder cylindrical of described positioning seat (16) is the ladder cylindrical coordinating with large ladder endoporus and the little ladder endoporus of location body (13) respectively with two different-diameters, and described disk spring (15) is placed in the ladder cylindrical of positioning seat (16) and the formed annular space of ladder endoporus of location body (13).
3. boring piston pin hole according to claim 2 does not produce back the device of knife mark, it is characterized in that: in the upper plane of location body (13), be provided with the spacing pressure ring (17) of restriction positioning seat (16) upper limit position, the internal diameter of spacing pressure ring coordinates with the cylindrical of piston.
4. boring piston pin hole according to claim 3 does not produce back the device of knife mark, it is characterized in that: on the cylindrical of described location body (13), be provided with the adjusting nut (14) of adjusting location body (13) and positioning seat (16) height; In the side of base plate (1), be provided with the lock-screw (18) corresponding with the cylindrical of locating body (13); Location body (13) little ladder endoporus and the little ladder cylindrical of positioning seat (16) between be also provided with axial dive key (28).
5. boring piston pin hole according to claim 1 does not produce back the device of knife mark, it is characterized in that: between the cylinder rod of described servo-actuated platen (30) and cylinder (12), by universal joint, be connected.
6. boring piston pin hole according to claim 1 does not produce back the device of knife mark, it is characterized in that: after positioner, the position of corresponding processed piston side, the top of base plate (1) is also provided with the V shape iron (10) of support piston side by bent plate (3).
7. boring piston pin hole according to claim 6 does not produce back the device of knife mark, it is characterized in that: described V shape iron (10) is fixed on by the second hexagon socket head cap screw (9) on the side on bent plate (3) top, the centre position of V shape iron (10) is provided with for adjusting the strip hole through the second hexagon socket head cap screw (9) of V shape iron (10) upper-lower position; On the transverse slat that the bottom of bent plate (3) coordinates with base plate (1), be also provided with the strip hole of adjusting V shape iron (10) front and back position, bent plate (3) is fixed on base plate (1) by the first hexagon socket head cap screw (8) through this strip hole.
8. boring piston pin hole according to claim 1 does not produce back the device of knife mark, it is characterized in that: the processed piston pin hole center line of a detection and cutter shaft are set to the bolt (25) of angle between direction of feed in the position at the upper corresponding processed piston pin hole of support (2) center.
9. boring piston pin hole according to claim 8 does not produce back the device of knife mark, it is characterized in that: described bolt (25) is threaded connection and is arranged in T shape piece (21), T shape piece (21) is arranged on the side of support (2) by the 6th hexagon socket head cap screw (22), be also provided with locking nut (24) on bolt (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210577733.2A CN103042416B (en) | 2012-12-27 | 2012-12-27 | Piston pin hole boring equipment free of generating cutter returning lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210577733.2A CN103042416B (en) | 2012-12-27 | 2012-12-27 | Piston pin hole boring equipment free of generating cutter returning lines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103042416A CN103042416A (en) | 2013-04-17 |
| CN103042416B true CN103042416B (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210577733.2A Expired - Fee Related CN103042416B (en) | 2012-12-27 | 2012-12-27 | Piston pin hole boring equipment free of generating cutter returning lines |
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| Country | Link |
|---|---|
| CN (1) | CN103042416B (en) |
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| CN113654594A (en) * | 2021-08-30 | 2021-11-16 | 青岛默森制造技术有限公司 | Special on-line measuring machine of piston |
| CN114042960A (en) * | 2021-12-03 | 2022-02-15 | 湖南江滨机器（集团）有限责任公司 | Piston pin hole machining device and machining method thereof |
| CN114888592A (en) * | 2022-05-13 | 2022-08-12 | 安徽省恒泰动力科技有限公司 | Point positioning device for machining lightweight piston and positioning method thereof |
| CN115383487A (en) * | 2022-08-25 | 2022-11-25 | 陕西柴油机重工有限公司 | Integrated device for processing and online detecting special-shaped pin hole of piston |
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| DE2950739A1 (en) * | 1979-12-17 | 1981-06-25 | Odesskoe stankostroitel'noe proizvodstvennoe ob"edinenie, Odessa | Double-ended, multiple-spindle fine boring machine - has two outer platens with multiple, horizontal spindle heads for holding tools, and centre platen for workpiece feed |
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| CN201086203Y (en) * | 2007-07-27 | 2008-07-16 | 东风汽车有限公司设备制造厂 | Clamping mechanism capable of implementing cutter back off, and workpiece lift |
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| CN102528557A (en) * | 2012-01-11 | 2012-07-04 | 江苏高精机电装备有限公司 | Error compensation device of boring arbor |
| CN202571508U (en) * | 2012-05-08 | 2012-12-05 | 中国船舶重工集团公司第七二二研究所 | Clamp capable of turning threads with high efficiency and retracting tool automatically |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000190324A (en) * | 1998-12-30 | 2000-07-11 | Asaba Seisakusho:Kk | Excavating hole diameter expanding device |
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- 2012-12-27 CN CN201210577733.2A patent/CN103042416B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU621924A1 (en) * | 1971-11-19 | 1978-08-30 | Государственный Проектно-Технологический И Экспериментальный Институт "Оргстанкинпром" | Hydraulic actuating cylinder |
| DE2950739A1 (en) * | 1979-12-17 | 1981-06-25 | Odesskoe stankostroitel'noe proizvodstvennoe ob"edinenie, Odessa | Double-ended, multiple-spindle fine boring machine - has two outer platens with multiple, horizontal spindle heads for holding tools, and centre platen for workpiece feed |
| CN200942440Y (en) * | 2006-08-22 | 2007-09-05 | 胜华波集团有限公司 | Special lathe for processing forming hole |
| CN201086203Y (en) * | 2007-07-27 | 2008-07-16 | 东风汽车有限公司设备制造厂 | Clamping mechanism capable of implementing cutter back off, and workpiece lift |
| CN201300218Y (en) * | 2008-11-24 | 2009-09-02 | 河南科技学院 | Blind-hole internal screw turning tool with automatic cutter withdrawal device |
| CN102528557A (en) * | 2012-01-11 | 2012-07-04 | 江苏高精机电装备有限公司 | Error compensation device of boring arbor |
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| CN103042416A (en) | 2013-04-17 |
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