CN103042416A - 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
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- CN103042416A CN103042416A CN2012105777332A CN201210577733A CN103042416A CN 103042416 A CN103042416 A CN 103042416A CN 2012105777332 A CN2012105777332 A CN 2012105777332A CN 201210577733 A CN201210577733 A CN 201210577733A CN 103042416 A CN103042416 A CN 103042416A
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- ladder
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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 present invention relates to the right boring piston pin hole device of piston manufacturing, is behind the piston precision bored hole, gets out of the way a kind of device that boring cutter avoids producing back knife mark by piston axial displacement.
Background technology
Piston is when precision bored hole, usually adopt the artificial orientation to make point of a knife be in pin-and-hole relief chamber one side, then can not produce back knife mark (because of relief chamber greater than the pin-and-hole diameter), as there is not a relief chamber, then when withdrawing, just produce back knife mark (cut), a kind of elastic device of the design that also has moves piston, no longer produces back knife mark thereby dodge point of a knife.
Also have on the industry 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, do not produce back the device of knife mark when the invention provides a kind of automaticity height, the low-cost boring piston pin hole that is applicable to produce in enormous quantities.
Realize by the following technical solutions for solving the problems of the technologies described above the present invention: a kind of boring piston pin hole does not produce back the device of knife mark, comprise the base plate that is installed on the boring table, the positioner of the processed piston of one placement is set in the base plate, and the top of described positioner also arranges a hold down gag corresponding with positioner by the support that is fastened on the base plate; Described positioner comprises that cooperation is installed in the location body in the base plate locating hole, the location body is one to have the ladder endoporus and the body of the ladder cylindrical that cooperates with the base plate endoporus, one positioning seat with ladder cylindrical is installed in the ladder endoporus of location body, between the plane of the bottom surface of the large ladder cylindrical of positioning seat and the ladder endoporus of locating body, is laid disk spring; Described hold down gag comprises the cylinder that is fixedly mounted on the support top flange, is provided with the cylinder rod servo-actuated platen that connect, that the position is corresponding with the top of processed piston with cylinder below the 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 cooperates, in the ladder cylindrical that described disk spring is placed on positioning seat and the formed annular space of ladder endoporus of locating body.
The location of the present invention further concrete structure of body is: be provided with the spacing pressure ring of restriction positioning seat upper limit position on the upper plane of location body, the internal diameter of spacing pressure ring cooperates with the cylindrical of piston.
The location of the present invention further concrete structure of body is: be provided with the adjusting nut of adjusting location body and positioning seat height on the cylindrical of described location body; Be provided with the lock-screw corresponding with the cylindrical of locating body in the side of base plate; Between the little ladder cylindrical of the little ladder endoporus of locating body and positioning seat, also be provided with axial dive key.
Further concrete structure of the present invention is: be connected by universal joint between the cylinder rod of described servo-actuated platen and cylinder.
Further concrete structure of the present invention is: the position of corresponding processed piston side also is provided with the V shape iron of support piston side by bent plate above positioner back, base plate.
Further improvement in the technical proposal 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 the strip hole that passes the second hexagon socket head cap screw of adjusting the V shape iron upper-lower position; Also be provided with the strip hole of adjusting the V shape iron front and back position on the bottom of bent plate and the transverse slat that base plate cooperates, bent plate is fixed on the base plate by the first hexagon socket head cap screw that passes this strip hole.
Further concrete structure of the present invention is: a processed piston pin hole center line of detection and cutter shaft are set to the bolt of angle between the direction of feed in the position at corresponding processed piston pin hole center on the support.
Further improvement in the technical proposal of the present invention is: described bolt is threaded connection and is installed in the T shape piece, and T shape piece is installed in the side of support by the 6th hexagon socket head cap screw, also is provided with locking nut on the bolt.
Because the technological progress of having adopted technique scheme, the present invention to obtain is: the device of the piston that is installed of the present invention, automaticity is high, makes simply, and low price is applicable to produce in enormous quantities, when the boring piston pin hole, does not produce back knife mark.After processed piston is placed into positioner, by hold down gag piston is pressed on the positioner, and produces certain amount of moving down; Behind the pin-and-hole that processes piston, hold down gag rises, and under the effect of the elastic force of piston in positioner, several millimeters the distance 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 cooperates with the cylindrical of piston, piston can be put in the spacing pressure ring, and piston is accurately located.
By the adjusting nut on the body cylindrical of rotation location, 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 behind the height of location body can the rotation lock screw, will locate body and hold out against fixingly, prevents that the height of locating body from changing.
Be connected by universal joint between the cylinder rod of servo-actuated platen of the present invention and cylinder, 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 the location.V shape iron installs and fixes by the bent plate with strip hole, makes V shape iron can realize reaching up and down the adjustment of front and back position, to adapt to the processing of the big or small piston of difference.
The bolt that arranges on the support of the present invention, to detect processed piston pin hole center line and cutter shaft to whether becoming straight line between the direction of feed, during detection the end face of bolt is arrived the theoretical required value apart from pin-and-hole after the adjustment right boring of processed piston pin hole center line, then with locking nut bolt is locked.Insert alignment pin rod in processed piston pin hole, the path of alignment pin rod cooperates with piston pin hole diameter behind the heavy boring, greatly directly is the numerical value of pin-and-hole after the right boring.Alignment pin rod miner diameter end is inserted in the pin-and-hole of piston behind heavy boring, make the cylindrical of alignment pin rod bigger diameter end and the end contact of bolt, be finished surface to the location, prove that the piston pin hole center line is consistent to direction of feed with cutter shaft, can carry out the piston pin hole right boring behind the clamping piston.Bolt is installed in the 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 the common boring machine, and behind Piston Machining, the elasticity by disk spring makes piston axially produce micro-displacement, thereby dodges out the point of a knife on the boring bar and do not produce back knife mark.
Description of drawings
In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing, 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;
Among the 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. the location body, 14. adjusting nuts, 15. disk springs, 16. positioning seat, 17. spacing pressure rings, 18. lock-screws, 19. the 4th hexagon socket head cap screw, 20. the 5th hexagon socket head cap screws, 21.T shape piece, 22. the 6th hexagon socket head cap screw, 23. spring washer, 24. locking nuts, 25. dog screws, 26. the 7th hexagon socket head cap screw, 27. the 8th hexagon socket head cap screw, 28. dive keys, 29. the 9th hexagon socket head cap screws, 30. servo-actuated platen, 31. alignment pins rod.
The specific embodiment
A kind of boring piston pin hole does not produce back the device of knife mark, referring to accompanying drawing 1～4.This device comprises the base plate 1 that is installed on the boring table, and a locating hole is arranged on the base plate 1, and a location device is set in the locating hole of base plate, places processed piston in the positioner.The top of positioner also arranges a hold down gag corresponding with positioner, hold down gag is installed on the support 2, support 2 is fixed on the base plate 1, be provided with positioning key 5 between support 2 and the base plate 1, 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 that is installed in base plate 1 endoporus, and location body 13 is one to have the ladder endoporus and the body of the ladder cylindrical that cooperates with base plate 1 endoporus, and the endoporus of locating body 13 has three ladders, for having the ladder endoporus of three different-diameters.Cooperate installation one to have the positioning seat 16 of ladder cylindrical in the ladder endoporus of location body 13, the cylindrical of positioning seat 16 has two different-diameters, and they cooperate 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 plane of ladder endoporus of the bottom surface of positioning seat 16 large ladder cylindricals and location body 13, namely in the formed annular space of ladder endoporus of the disk spring 15 ladder cylindrical that is placed on positioning seat 16 and location body 13.Disk spring 15 is used for supporting and location seat 16, makes the upper plane of positioning seat 16 and locates plane parallel on the body 13, and when putting piston on the positioning seat 16 and being pressed down, disk spring can be out of shape at least 0.02mm downwards.
Be provided with the spacing pressure ring 17 of restriction positioning seat 16 upper limit positions on the upper plane of the location of positioner body 13, the internal diameter of spacing pressure ring cooperates 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 screw thread is arranged, and at the screw thread place of location body 13 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 the location body during lock-screw 18 precession.Between the little ladder cylindrical of the little ladder endoporus of locating body 13 and positioning seat 16, also be provided with dive key 28, dive key 28 is used for making positioning seat 16 to move axially along location body 13, and dive key 28 is installed 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.Be connected by universal joint between the cylinder rod of servo-actuated platen 30 and cylinder 12.
In the side of processed piston one V shape iron 10 is set, fixedly mounts a bent plate 3 in the positioner back, V shape iron 10 is installed in 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 the 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 passes 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 up and down the position.Bent plate 3 is the L-type structure, and a transverse slat is arranged at the bottom of bent plate 3, and transverse slat cooperates with base plate 1, also is provided with strip hole on the transverse slat, is used for adjusting V shape iron 10 front and back positions.The first hexagon socket head cap screw 8 passes this strip hole bent plate is fixed on the base plate 1.
Side at support 2 also arranges a T shape piece 21, and T shape piece 21 is installed in the side of support 2 by the 6th hexagon socket head cap screw 22, on the T shape piece 21 screwed hole is set, and a location bolt 25 is set.The height of bolt 25 is consistent with the height at processed piston pin hole center, is to realize processing to the large valve piston of difference by the height of adjusting 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 the location is provided.Also be provided with locking nut 24 on the bolt 25.
Pack in the positioning seat behind the body of location, guarantee that the upper plane of location body exceeds 0.02 than positioning seat, the disk spring of then packing into, the spacing pressure ring of rear usefulness compresses, and compresses locked with plain cushion, spring washer and the first hexagon socket head cap screw.The location that it is vertical direction that piston is put into the top realization Z-direction of spacing pressure ring, positioning seat, then piston by V shape iron 10 and dog screw 25 location, makes cylinder rod stretch out again after the accurate positioning, and servo-actuated platen 30 is depressed; To pin-and-hole centre distance, can adjust by adjusting nut 14 position of piston pin hole according to boring bar height, piston-top surface; Rear withstanding with lock-screw 18 located body 13.
After adjusting end, can carry out the processing of pin-and-hole, after the processing, the boring cutter point of a knife is rushed to, then make cylinder 12 upwards, when servo-actuated platen 30 rose, positioning seat 16 was 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, and travelling table makes boring bar withdraw from piston pin hole again, finish 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, namely is beneficial to adjustment, has reached again the purpose 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) that is installed on the boring table, the positioner of the processed piston of one placement is set in the base plate (1), and the top of described positioner also arranges a hold down gag corresponding with positioner by the support (2) that is fastened on the base plate (1); Described positioner comprises the location body (13) that is installed in base plate (1) locating hole, location body (13) is one to have the ladder endoporus and the body of the ladder cylindrical that cooperates with base plate (1) endoporus, one positioning seat (16) with ladder cylindrical cooperate to be installed in the ladder endoporus of location body (13), between the plane of the bottom surface of the large ladder cylindrical of positioning seat (16) and the ladder endoporus of locating body (13), to be laid disk spring (15); Described hold down gag comprises the cylinder (12) that is fixedly mounted on support (2) top flange, is provided with the cylinder rod servo-actuated platen (30) that connect, that the 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 endoporus of described location body (13) is the ladder endoporus with three different-diameters, the cylindrical of described positioning seat (16) is the ladder cylindrical that cooperates 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 on the ladder cylindrical of positioning seat (16) and locates in the formed annular space of ladder endoporus of 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: be provided with the spacing pressure ring (17) of restriction positioning seat (16) upper limit position on the upper plane of location body (13), the internal diameter of spacing pressure ring cooperates 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: be provided with the adjusting nut (14) of adjusting location body (13) and positioning seat (16) height on the cylindrical of described location body (13); Be provided with the lock-screw (18) corresponding with the cylindrical of locating body (13) in the side of base plate (1); Between the little ladder cylindrical of the little ladder endoporus of locating body (13) and positioning seat (16), also be 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: be connected by universal joint between the cylinder rod of described servo-actuated platen (30) and cylinder (12).
6. boring piston pin hole according to claim 1 does not produce back the device of knife mark, it is characterized in that: in the positioner back, the position of corresponding processed piston side, the top of base plate (1) also is 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 the side on bent plate (3) top by the second hexagon socket head cap screw (9), and the centre position of V shape iron (10) is provided with for the strip hole that passes the second hexagon socket head cap screw (9) of adjusting V shape iron (10) upper-lower position; Also be provided with the strip hole of adjusting V shape iron (10) front and back position on the bottom of bent plate (3) and the transverse slat that base plate (1) cooperates, bent plate (3) is fixed on the base plate (1) by the first hexagon socket head cap screw (8) that passes 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: a processed piston pin hole center line of detection and cutter shaft are set to the bolt (25) of angle between the direction of feed in the position at the upper corresponding processed piston pin hole center of support (2).
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 installed in the T shape piece (21), T shape piece (21) is installed in the side of support (2) by the 6th hexagon socket head cap screw (22), also is provided with locking nut (24) on the 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 true CN103042416A (en) | 2013-04-17 |
| CN103042416B 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 |
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| CN (1) | CN103042416B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639631A (en) * | 2013-11-19 | 2014-03-19 | 重庆市星极齿轮有限责任公司 | Gear welding fixture |
| CN104400776A (en) * | 2014-11-10 | 2015-03-11 | 重庆市西华机械制造有限公司 | Scribing table for engine cylinder block |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639631A (en) * | 2013-11-19 | 2014-03-19 | 重庆市星极齿轮有限责任公司 | Gear welding fixture |
| CN104400776A (en) * | 2014-11-10 | 2015-03-11 | 重庆市西华机械制造有限公司 | Scribing table for engine cylinder block |
| 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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| Publication number | Publication date |
|---|---|
| CN103042416B (en) | 2014-12-10 |
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