CN102092000A - Fixture for grinding ball end of plunger connecting rod assembly - Google Patents
Fixture for grinding ball end of plunger connecting rod assembly Download PDFInfo
- Publication number
- CN102092000A CN102092000A CN2010105760169A CN201010576016A CN102092000A CN 102092000 A CN102092000 A CN 102092000A CN 2010105760169 A CN2010105760169 A CN 2010105760169A CN 201010576016 A CN201010576016 A CN 201010576016A CN 102092000 A CN102092000 A CN 102092000A
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- plunger
- connecting rod
- holding piece
- ball end
- bulb
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Abstract
The invention discloses a fixture for grinding the ball end of a plunger connecting rod assembly. The fixture comprises a clamping plate which consists of a first clamping plate and a second clamping plate, wherein the first and the second clamping plates are respectively formed by cutting a hollow cylinder by two parallel planes from the center to two sides, the two ends of the first and the second clamping plates are further provided with arc-shaped tables matched with a connecting rod on a plunger ball end and a plunger sleeve. The fixture can clamp a machine tool chuck, the clamping plates and the connecting rod of the plunger ball end, prevents the ball end from rotating relative to the plunger sleeve and a machine tool chuck in the grinding process, is simple in structure and convenient to use, solves the problem that the ball end of the plunger connecting rod assembly can not be ground, increases the grinding efficiency of the ball end, and fundamentally guarantees the assembly precision of the ball end.
Description
Technical field
The present invention relates to a kind of anchor clamps, employed anchor clamps when particularly a kind of bulb that is used for hydraulic pump, motor plunger connecting rod assembly grinds.
Background technology
In the diesel locomotive hydrostatic transmissions system, pump, the operating pressure height of motor, functional reliability requires high, hydraulic pump, the bulb of motor plunger connecting rod assembly (being called for short the plunger connecting rod bulb) requires also very high with cooperating of cylinder body ball-and-socket, hydraulic pump in the diesel locomotive hydrostatic pressure system, motor is in assembling or when assembling maintenance, normal plunger ball takes place and cylinder body ball-and-socket fit clearance is less than normal or contact-making surface does not reach requirement, at this moment then need plunger ball is further ground, process of lapping can be finished by manual and maneuver mode, but hand lapping efficient is too low, the influence of a lot of subjective factors in this work, can occur, the quality of bulb part can't be guaranteed; Therefore, people select with machine tool the bulb of plunger ball partly to be carried out attrition process, but can be relative movable between the plunger bushing in the plunger connecting rod assembly and connecting rod, during the machine tool attrition process, because very short can't being clamped on the machine chuck of connecting rod neck of stretching out can only clamp plunger bushing, and the relative plunger bushing of connecting rod is movable, the bulb that needs to grind can not rotate with lathe, thereby can not grind on lathe.
Summary of the invention
Purpose of the present invention just is to provide a kind of anchor clamps that are used for hydraulic pump, the grinding of motor plunger connecting rod assembly bulb, and it can prevent that connection rod sphere from rotating with respect to plunger bushing and machine chuck, improves the precision that plunger ball is ground, and improves the grinding operating efficiency.
To achieve these goals, the technical solution used in the present invention is such: a kind of anchor clamps that are used for the plunger ball grinding, form by holding piece, described holding piece is made up of first holding piece and second holding piece, first holding piece and second holding piece are to be that the cylinder of hollow structure is cut open along the both sides, center by two parallel planes and formed by inside, the two ends of first holding piece and second holding piece also offer with plunger ball on connecting rod and the arc platform that matches of plunger bushing.The connecting rod and the plunger bushing of plunger ball are clamped in first holding piece and second holding piece, the arc platform at holding piece two ends is passed at the two ends of plunger ball, machine chuck clamps holding piece, can make when bulb is ground, bulb can not rotate with respect to plunger bushing and machine chuck, realize that from face plunger ball grinds at lathe, solved the problem that the bulb of plunger connecting rod assembly can't grind, fundamentally guarantee the assembly precision of bulb.
In order to be installed on the plunger ball at holding piece, there is certain clearance between two holding pieces, help when machine chuck tightens, holding piece has movable space more can be close to plunger ball, and the then described distance of dissecing between cylindrical two parallel planes along the both sides, center is 0.5～1mm.
Compared with prior art, the invention has the advantages that:
The present invention has realized the clamping between the connecting rod in machine chuck, anchor clamps, the plunger ball by anchor clamps, make in the process that bulb is ground, avoided bulb to rotate with respect to plunger bushing and machine chuck, structure tube list is easy to use, solved the problem that the bulb of plunger connecting rod assembly can't grind, improved bulb and ground operating efficiency; Fundamentally guarantee the assembly precision of bulb.
Description of drawings
Fig. 1 is a structure chart of the present invention;
Structure chart diagram one when Fig. 2 is assemblied on the lathe for the present invention;
Structure chart diagram two when Fig. 3 is assemblied on the lathe for the present invention.
The specific embodiment
The invention will be further described with concrete enforcement below in conjunction with accompanying drawing;
Referring to Fig. 1 to Fig. 3, a kind of anchor clamps that are used for hydraulic pump, the grinding of motor plunger connecting rod assembly bulb, form by holding piece 2, described holding piece 2 is made up of the first holding piece 2-1 and the second holding piece 2-2, the first holding piece 2-1 and the second holding piece 2-2 are to be that the cylinder of hollow structure is cut open along the both sides, center by two parallel planes and formed by inside, and the distance between described two parallel planes is 0.5～1mm; The two ends of the first holding piece 2-1 and the second holding piece 2-2 also offer with plunger ball 6 on connecting rod 5 and the arc platform 4 that matches of plunger bushing.The connecting rod 5 and the stick harness cover of plunger ball 6 are clamped among the first holding piece 2-1 and the second holding piece 2-2, the arc platform 4 at holding piece 2 two ends is passed at the two ends of plunger ball 6, machine chuck 1 clamps holding piece, because holding piece 2 arc platforms 4 contact with plunger bushing with connecting rod 5 respectively, and then clamp connecting rod neck and plunger bushing.The two ends of plunger ball 6 directly contact with arc platform 4, one end arc platform of holding piece 2 contacts with connecting rod, the other end contacts with plunger bushing, make when bulb 3 is ground, the connecting rod 5 of plunger ball 6 can not rotate with respect to plunger bushing and machine chuck 1, thereby realize the attrition process of bulb 3, fundamentally guaranteed grinding precision.
Grind also available fine lapping sand paper grinding and polishing with special-purpose aid and abrasive pastes when on lathe, rotating.Fundamentally guarantee hydraulic pump, the bulb 3 and pump, motor oil cylinder body ball-and-socket fit clearance and contact-making surface requirement of motor when the maintenance assembling; Satisfy the utilization requirement, use this patent of invention can improve maintenance assembly working efficient and quality, guarantee the normal utilization of hydraulic pump, motor.The present invention has realized the clamping between the connecting rod 5 in machine chuck, anchor clamps, the plunger ball 6 by anchor clamps, make in the process that bulb 3 is ground, avoided bulb 3 to rotate with respect to plunger bushing and machine chuck 1, solve the problem that the bulb 3 of plunger connecting rod assembly can't grind, fundamentally guaranteed the assembly precision of bulb 3; Improve bulb 3 and ground operating efficiency.
The above only is a preferred implementation of the present invention, and protection scope of the present invention also not only is confined to the foregoing description, and all technical schemes that belongs under the thinking of the present invention all belong to protection scope of the present invention.Should be pointed out that for those skilled in the art the some improvements and modifications not breaking away under the principle of the invention prerequisite also should be considered as protection scope of the present invention.
Claims (2)
1. one kind is used for the anchor clamps that plunger connecting rod assembly bulb grinds, form by holding piece, it is characterized in that: described holding piece is made up of first holding piece and second holding piece, first holding piece and second holding piece are to be that the cylinder of hollow structure is cut open along the both sides, center by two parallel planes and formed by inside, the two ends of first holding piece and second holding piece also offer with plunger ball on connecting rod and the arc platform that matches of plunger bushing.
2. a kind of anchor clamps that plunger connecting rod assembly bulb grinds that are used for according to claim 1, it is characterized in that: the described distance of dissecing between cylindrical two parallel planes along the both sides, center is 0.5～1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105760169A CN102092000B (en) | 2010-12-07 | 2010-12-07 | Fixture for grinding ball end of plunger connecting rod assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105760169A CN102092000B (en) | 2010-12-07 | 2010-12-07 | Fixture for grinding ball end of plunger connecting rod assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102092000A true CN102092000A (en) | 2011-06-15 |
| CN102092000B CN102092000B (en) | 2012-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105760169A Active CN102092000B (en) | 2010-12-07 | 2010-12-07 | Fixture for grinding ball end of plunger connecting rod assembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN102092000B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231305A (en) * | 2013-05-09 | 2013-08-07 | 苏州金牛精密机械有限公司 | Plunger grinding fixture |
| CN104108065A (en) * | 2014-06-24 | 2014-10-22 | 常州德日机械有限公司 | Special clamp for grinding outer circle of plunger |
| CN104308706A (en) * | 2014-08-29 | 2015-01-28 | 长城汽车股份有限公司 | Processing device for polishing ball pin |
| CN104874908A (en) * | 2015-05-29 | 2015-09-02 | 成都航利航空科技有限责任公司 | Electric resistance welding device used for circumferential welding while deep inner cavity tensioning |
| CN106737107A (en) * | 2017-03-07 | 2017-05-31 | 石嘴山市金辉科贸有限公司 | A kind of automobile pull rod bulb burnishing device |
| CN110977753A (en) * | 2019-11-22 | 2020-04-10 | 中国航发西安动力控制科技有限公司 | Fine grinding tool for equally-divided eccentric ball socket and machining method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09242518A (en) * | 1996-03-08 | 1997-09-16 | Hitachi Ltd | Device for automatically grinding valve seat |
| CN1687595A (en) * | 2005-05-23 | 2005-10-26 | 闻本良 | Ceramics plunger in oil well pump |
| CN201913538U (en) * | 2010-12-07 | 2011-08-03 | 南车成都机车车辆有限公司 | Clamp for grinding plunger connecting rod component bulb |
-
2010
- 2010-12-07 CN CN2010105760169A patent/CN102092000B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09242518A (en) * | 1996-03-08 | 1997-09-16 | Hitachi Ltd | Device for automatically grinding valve seat |
| CN1687595A (en) * | 2005-05-23 | 2005-10-26 | 闻本良 | Ceramics plunger in oil well pump |
| CN201913538U (en) * | 2010-12-07 | 2011-08-03 | 南车成都机车车辆有限公司 | Clamp for grinding plunger connecting rod component bulb |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231305A (en) * | 2013-05-09 | 2013-08-07 | 苏州金牛精密机械有限公司 | Plunger grinding fixture |
| CN103231305B (en) * | 2013-05-09 | 2016-01-20 | 苏州金牛精密机械有限公司 | A kind of plunger grinding clamp |
| CN104108065A (en) * | 2014-06-24 | 2014-10-22 | 常州德日机械有限公司 | Special clamp for grinding outer circle of plunger |
| CN104108065B (en) * | 2014-06-24 | 2016-08-24 | 常州德日机械有限公司 | A kind of plunger grinding Excircle machining special fixture |
| CN104308706A (en) * | 2014-08-29 | 2015-01-28 | 长城汽车股份有限公司 | Processing device for polishing ball pin |
| CN104874908A (en) * | 2015-05-29 | 2015-09-02 | 成都航利航空科技有限责任公司 | Electric resistance welding device used for circumferential welding while deep inner cavity tensioning |
| CN104874908B (en) * | 2015-05-29 | 2016-11-16 | 成都航利航空科技有限责任公司 | The electric resistance welder both circumferentially welded for deep inner chamber tensioner |
| CN106737107A (en) * | 2017-03-07 | 2017-05-31 | 石嘴山市金辉科贸有限公司 | A kind of automobile pull rod bulb burnishing device |
| CN106737107B (en) * | 2017-03-07 | 2018-12-11 | 绍兴市华锐汽车零部件有限公司 | A kind of automobile pull rod bulb burnishing device |
| CN110977753A (en) * | 2019-11-22 | 2020-04-10 | 中国航发西安动力控制科技有限公司 | Fine grinding tool for equally-divided eccentric ball socket and machining method |
| CN110977753B (en) * | 2019-11-22 | 2022-06-28 | 中国航发西安动力控制科技有限公司 | Fine grinding tool for equally-divided eccentric ball socket and machining method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102092000B (en) | 2012-08-08 |
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Address after: 610065 Sichuan city of Chengdu province Chenghua District Second Bridge Road No. 31 Patentee after: CRRC CHENGDU CO., LTD. Address before: 610065 Sichuan city of Chengdu province Chenghua District Second Bridge Road No. 31 Patentee before: CSR Chengdu Co., Ltd. |