CN103143745A - Lathe clamp for clamping synchronizer gear - Google Patents
Lathe clamp for clamping synchronizer gear Download PDFInfo
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- CN103143745A CN103143745A CN2013101108502A CN201310110850A CN103143745A CN 103143745 A CN103143745 A CN 103143745A CN 2013101108502 A CN2013101108502 A CN 2013101108502A CN 201310110850 A CN201310110850 A CN 201310110850A CN 103143745 A CN103143745 A CN 103143745A
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- expansion shaft
- terminal pad
- sleeve
- resilient sleeve
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Abstract
The invention discloses a lathe clamp for clamping a synchronizer gear. Both the left end part and the right end part of a pull rod are threaded sections, and the rest part is a cylindrical section; the right threaded section is connected with a nut; an expansion shaft is sleeved on the right part of the threaded section; the right part of the outer wall of the expansion shaft is provided with a conical expansion part; the left end part of the expansion shaft is fixedly connected with the right end part of a connecting disc; the right part of the connecting disc is sleeved on the left part of the cylindrical section of the pull rod; both an elastic sleeve and a positioning sleeve are sleeved outside the expansion shaft; the positioning sleeve is fixed to the right end of the connecting disc through a positioning washer; the left part of an inner hole of the elastic sleeve is matched with the conical expansion part of the right part of the expansion shaft, and an axial groove is formed in the left part of the elastic sleeve along the circumferential direction; the right part of the elastic sleeve extends into a circular groove in the left part of the nut; and the inner end of a stop screw is inserted into an annular groove in the outer wall of the right part of the elastic sleeve. According to the lathe clamp, an inner splined hole of a gear blank is positioned through expansion of the right part of the elastic sleeve, and the right part of the elastic part more uniformly deforms in the circumferential direction, so that the clamping accuracy can be improved.
Description
Technical field
The invention belongs to the fixture field, specifically, relate in particular to a kind of automobile clamper for the clamping gear of synchronizer.
Background technology
Gear is a kind of vitals on synchronized, and its endoporus is usually splined hole.At present, we usually adopt lathe to process the positions such as the outer face of gear of synchronizer and end face, processing comes the tooth base of clamping gear often by automobile clamper as shown in Figure 1, this automobile clamper comprises clamp body 1 and screw rod 2, wherein the left part of clamp body 1 is No. 6 Morse taper shank sections, and during installation, this Morse taper shank section inserts in mohs tapered bore corresponding to lathe spindle.The axial line of described screw rod 2 and clamp body 1 are on the same straight line, and the end that is screwed into of this screw rod 2 is screwed in the screwed hole of clamp body 1 right part, and the end that is not screwed into of screw rod 2 is set with shaft block ring 3, lock sleeve 4 and packing ring 5 from left to right successively.And described lock sleeve 4 is outer is set with resilient sleeve 6, and the right part of these resilient sleeve 6 endoporus is conical expansion section, and the conical section of this conical expansion section and lock sleeve 4 right parts adapts, and is provided with vertically external splines at the right part of resilient sleeve 6.The left part of described resilient sleeve 6 is set with positioning sleeve 7, and the right-hand member of this positioning sleeve 7 is near the left end of resilient sleeve 6 external splines, and the left end of positioning sleeve 7 and resilient sleeve 6 all is fixedly connected with by the right-hand member of screw with described clamp body 1.
During clamping tooth base, first the tooth base is sleeved on the outer spline section of lock sleeve 4, then forces the conical expansion section swelling of resilient sleeve 6 by tightening described screw rod 2, thereby the internal splined hole of tooth base is positioned.In use, we find that mainly there is following defective in existing automobile clamper:
1, due on resilient sleeve 6 and unslotted, so just cause resilient sleeve 6 inhomogeneous in the circumferencial direction distortion, will affect like this clamping precision of tooth base, and then affect machining accuracy.
2, be arranged in mohs tapered bore corresponding to lathe spindle due to the Morse taper shank section of clamp body 1 by its left part, positioning accuracy is difficult to obtain Reliable guarantee, so just also can affect clamping precision and machining accuracy.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of automobile clamper for the clamping gear of synchronizer, and wish guarantees clamping precision.
Technical scheme of the present invention is as follows: a kind of automobile clamper for the clamping gear of synchronizer, comprise resilient sleeve (6) and positioning sleeve (7), it is characterized in that: also comprise terminal pad (8) and pull bar (9), wherein left part and the right part of pull bar (9) are thread segment, remainder is cylindrical section, and the right-hand thread section is connected with nut (10), and the right part of thread segment is set with expansion shaft (11), and the right part of this expansion shaft outer wall is tapered portion left large and right small; Described expansion shaft (11) left part is fixedly connected with the right part of terminal pad (8), the right part of this terminal pad (8) is sleeved on the left part of pull bar (9) cylindrical section, and the left-hand thread section of pull bar (9) is positioned at the cannelure (8a) of terminal pad (8) left part, and has axial hole (8b) on terminal pad (8);
Described resilient sleeve (6) and positioning sleeve (7) all are set in outside expansion shaft (11), wherein positioning sleeve (7) is positioned on the left of resilient sleeve (6), this positioning sleeve (7) is fixed by space washer (12) and the right-hand member of described terminal pad (8), and space washer (12) is sleeved on the left part of expansion shaft (11); The tapered portion of the left part of described resilient sleeve (6) endoporus and expansion shaft (11) right part adapts, and at resilient sleeve (6) left part along being circumferentially with the inside and outside axial groove (6a) that connects, and the resilient sleeve (6) between adjacent two axial grooves (6a) is provided with external splines (6b), the diameter of this external splines is less than the aperture of described positioning sleeve (7) endoporus, but greater than the external diameter of described nut (10);
Described resilient sleeve (6) right part stretches in the circular trough of nut (10) left part, only insert in cannelure on this resilient sleeve (6) right part outer wall the inner of a screw (13), and only the outer end of a screw (13) is screwed in the radial screw bore of nut (10) left part.
Clamping tooth base (P) is front, and during installation, the left-hand thread section of pull bar (9) is connected with drawing cylinder in the lathe hollow spindle, and terminal pad (8) is fixed by wearing screw and the lathe hollow spindle penetrated in axial hole (8b).During clamping tooth base (P), the external splines (6b) that first directly tooth base (P) is sleeved on resilient sleeve (6) is located, driving resilient sleeve (6) by fastening nut (10) again moves axially left, thereby the left part of resilient sleeve (6) endoporus is matched with the tapered portion of expansion shaft (11), so the internal splined hole to tooth base (P) positions during the left part swelling by resilient sleeve (6), in order to process the positions such as the outer face of tooth base (P) and end face.Deformation comparison is even in a circumferential direction due to the right part by resilient sleeve (6), and so just the positioning accuracy than traditional automobile clamper is high.
After processing the positions such as the outer face of tooth base (P) and end face, by spanner or other instruments, nut (10) is unclamped, this nut (10) moves axially to the right by stopping a screw (13) drive resilient sleeve (6), thereby make the right part of resilient sleeve (6) recover deformation, so just the tooth base (P) after processing can be unclamped, in order to directly tooth base (P) is taken off, simple to operation.
Adopt above technical scheme, the right part swelling of the present invention by resilient sleeve (6) positions the internal splined hole of tooth base (P), and deformation comparison is even in a circumferential direction for resilient sleeve (6) right part, so just can improve clamping precision, terminal pad (8) is connected with lathe by scroll chuck in addition, so just can improve the installation accuracy of this fixture, and then assurance clamping precision, and effectively overcome the defective of traditional automobile clamper, and have good applicability, be suitable for extensively promoting the use.
As the optimal design value, the tapering of described expansion shaft (11) conical section is 10 ° to 15 °.In above structure, the tapering of pull bar (1) conical section can not be excessive, again can not be too small, and excessive words easily make tension force excessive, and then expansion set (7) was lost efficacy, and too small words easily cause again self-locking.
As preferably, described expansion shaft (11) left part is fixedly connected with the right part of terminal pad (8) by the first screw (14) that axially arranges; Described positioning sleeve (7) is fixing with space washer (12) by the second screw (15) that axially arranges, and space washer (12) is fixedly connected with the right part of described terminal pad (8) by the 3rd screw (16) that axially arranges.
Beneficial effect: the right part swelling of the present invention by resilient sleeve (6) positions the internal splined hole of tooth base (P), and deformation comparison is even in a circumferential direction for resilient sleeve (6) right part, so just can improve clamping precision, terminal pad (8) is connected with lathe by scroll chuck in addition, so just can improve the installation accuracy of this fixture, and then guarantee clamping precision, and effectively overcome the defective of traditional automobile clamper, have good applicability, be suitable for extensively promoting the use.
Description of drawings
Fig. 1 is the structural representation of conventional brace;
Fig. 2 is the clamp structure schematic diagram after improving.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples:
As shown in Figure 2, a kind of automobile clamper for the clamping gear of synchronizer is mainly by resilient sleeve 6, positioning sleeve 7, terminal pad 8, pull bar 9, nut 10, expansion shaft 11, space washer 12, only a screw 13, the first screw 14, the second screw 15 and the 3rd screw 16 consist of.Wherein, left part and the right part of described pull bar 9 are thread segment, and remainder is cylindrical section, and the right-hand thread section of this pull bar 9 is connected with nut 10.And the right part of described pull bar 9 thread segments is set with expansion shaft 11, and the right part of these expansion shaft 11 outer walls is tapered portion left large and right small, and the tapering of this tapered portion is 10 ° to 15 °, and can be more preferably 15 °.
Described expansion shaft 11 left parts are fixedly connected with the right part of terminal pad 8 by the first screw 14 of axial setting, and the right part of this terminal pad 8 is sleeved on the left part of pull bar 9 cylindrical sections.And the left-hand thread section of described pull bar 9 is positioned at the cannelure 8a of terminal pad 8 left parts, and has axial hole 8b on terminal pad 8.During installation, the left-hand thread section of pull bar 9 is connected with drawing cylinder in the lathe hollow spindle, and terminal pad 8 is fixed by wearing screw and the lathe hollow spindle penetrated in axial hole 8b.
As can be seen from Figure 2, described resilient sleeve 6 and positioning sleeve 7 all are set in outside expansion shaft 11, wherein positioning sleeve 7 is positioned at the left side of resilient sleeve 6, and this positioning sleeve 7 is fixed by space washer 12 and the right-hand member of described terminal pad 8, and space washer 12 is sleeved on the left part of expansion shaft 11.In the present embodiment, described positioning sleeve 7 is fixing with space washer 12 by the second screw 15 that axially arranges, and three screw 16 of space washer 12 by axial setting is fixedly connected with the right part of described terminal pad 8.
Described resilient sleeve 6 is metalwork, and the tapered portion of the left part of these resilient sleeve 6 endoporus and expansion shaft 11 right parts adapts.At the left part of described resilient sleeve 6 along being circumferentially with a plurality of axial groove 6a, this axial groove 6a runs through the inner and outer wall of resilient sleeve 6, and the resilient sleeve 6 between adjacent two axial groove 6a is provided with external splines 6b, the diameter of this external splines 6b is less than the aperture of described positioning sleeve 7 endoporus, but the diameter of external splines 6b is greater than the external diameter of described nut 10.
As can be seen from Figure 2, the right part of described resilient sleeve 6 stretches in the circular trough of nut 10 left parts, and only insert in cannelure on these resilient sleeve 6 right part outer walls the inner of a screw 13, and only the outer end of a screw 13 is screwed in the radial screw bore of nut 10 left parts.
The above is only preferred embodiment of the present invention, not take the present invention as restriction, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. automobile clamper that is used for the clamping gear of synchronizer, comprise resilient sleeve (6) and positioning sleeve (7), it is characterized in that: also comprise terminal pad (8) and pull bar (9), wherein left part and the right part of pull bar (9) are thread segment, remainder is cylindrical section, and the right-hand thread section is connected with nut (10), and the right part of thread segment is set with expansion shaft (11), and the right part of this expansion shaft outer wall is tapered portion left large and right small; Described expansion shaft (11) left part is fixedly connected with the right part of terminal pad (8), the right part of this terminal pad (8) is sleeved on the left part of pull bar (9) cylindrical section, and the left-hand thread section of pull bar (9) is positioned at the cannelure (8a) of terminal pad (8) left part, and has axial hole (8b) on terminal pad (8);
Described resilient sleeve (6) and positioning sleeve (7) all are set in outside expansion shaft (11), wherein positioning sleeve (7) is positioned on the left of resilient sleeve (6), this positioning sleeve (7) is fixed by space washer (12) and the right-hand member of described terminal pad (8), and space washer (12) is sleeved on the left part of expansion shaft (11); The tapered portion of the left part of described resilient sleeve (6) endoporus and expansion shaft (11) right part adapts, and at resilient sleeve (6) left part along being circumferentially with the inside and outside axial groove (6a) that connects, and the resilient sleeve (6) between adjacent two axial grooves (6a) is provided with external splines (6b), the diameter of this external splines is less than the aperture of described positioning sleeve (7) endoporus, but greater than the external diameter of described nut (10);
Described resilient sleeve (6) right part stretches in the circular trough of nut (10) left part, only insert in cannelure on this resilient sleeve (6) right part outer wall the inner of a screw (13), and only the outer end of a screw (13) is screwed in the radial screw bore of nut (10) left part.
2. be used for according to claim 1 the automobile clamper of clamping gear of synchronizer, it is characterized in that: the tapering of described expansion shaft (11) conical section is 10 ° to 15 °.
3. described automobile clamper for the clamping gear of synchronizer according to claim 1 and 2 is characterized in that: described expansion shaft (11) left part is fixedly connected with the right part of terminal pad (8) by the first screw (14) that axially arranges; Described positioning sleeve (7) is fixing with space washer (12) by the second screw (15) that axially arranges, and space washer (12) is fixedly connected with the right part of described terminal pad (8) by the 3rd screw (16) that axially arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101108502A CN103143745A (en) | 2013-04-01 | 2013-04-01 | Lathe clamp for clamping synchronizer gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101108502A CN103143745A (en) | 2013-04-01 | 2013-04-01 | Lathe clamp for clamping synchronizer gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103143745A true CN103143745A (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101108502A Pending CN103143745A (en) | 2013-04-01 | 2013-04-01 | Lathe clamp for clamping synchronizer gear |
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| CN (1) | CN103143745A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894641A (en) * | 2014-04-16 | 2014-07-02 | 江西江铃底盘股份有限公司 | Outer-ejection-type inner expansion clamping sleeve |
| CN103925355A (en) * | 2014-04-03 | 2014-07-16 | 中国北方发动机研究所(天津) | Axial damping connection sleeve capable of eliminating axial force of tapered compression coupling shaft |
| CN104999103A (en) * | 2015-08-26 | 2015-10-28 | 朱应生 | Power chuck |
| CN106181829A (en) * | 2016-08-29 | 2016-12-07 | 桂林福达股份有限公司 | A kind of clutch drived disk assy Novel balance frock |
| CN108067692A (en) * | 2017-12-18 | 2018-05-25 | 中国航发贵州黎阳航空动力有限公司 | A kind of involute inner spline centering tensioning clamper |
| CN109015370A (en) * | 2018-09-21 | 2018-12-18 | 郑州运达造纸设备有限公司 | A kind of blender axle sleeve grinding fixture |
| CN109590498A (en) * | 2018-11-29 | 2019-04-09 | 长春市吉通伟业汽车底盘零部件有限责任公司 | One kind being used for the general core fixture that rises of automotive hub Precision Machining |
| CN110595394A (en) * | 2019-09-30 | 2019-12-20 | 天津大学 | Gapless polyhedral prism mounting structure based on expansion |
| CN111215943A (en) * | 2020-02-19 | 2020-06-02 | 江山市发发科技有限公司 | Machine tool for processing peripheral surface of circular ring with built-in cylinder |
| CN113579279A (en) * | 2021-08-10 | 2021-11-02 | 贺尔碧格传动技术(常州)有限公司 | Clamping device for ring-shaped parts |
| CN114378514A (en) * | 2021-12-30 | 2022-04-22 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Expansion adjustable positioning head assembly for aviation heat exchanger welding fixture |
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| CN202701523U (en) * | 2012-07-01 | 2013-01-30 | 十堰港汉实业有限公司 | High-precision expandable gear shaving clamp |
| CN203197298U (en) * | 2013-04-01 | 2013-09-18 | 重庆永达精密机械有限公司 | Vehicle clamp for clamping synchronizer gear |
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Patent Citations (5)
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| CN2920501Y (en) * | 2006-06-29 | 2007-07-11 | 贵州群建齿轮有限公司 | Gear machining clamp |
| CN201186357Y (en) * | 2008-05-07 | 2009-01-28 | 如皋市非标轴承有限公司 | Expanding tyre tube jigs |
| CN202461577U (en) * | 2012-01-15 | 2012-10-03 | 招远鲁鑫线轴有限公司 | Cylindrical turning fixture for thin-walled workpiece |
| CN202701523U (en) * | 2012-07-01 | 2013-01-30 | 十堰港汉实业有限公司 | High-precision expandable gear shaving clamp |
| CN203197298U (en) * | 2013-04-01 | 2013-09-18 | 重庆永达精密机械有限公司 | Vehicle clamp for clamping synchronizer gear |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925355A (en) * | 2014-04-03 | 2014-07-16 | 中国北方发动机研究所(天津) | Axial damping connection sleeve capable of eliminating axial force of tapered compression coupling shaft |
| CN103894641A (en) * | 2014-04-16 | 2014-07-02 | 江西江铃底盘股份有限公司 | Outer-ejection-type inner expansion clamping sleeve |
| CN104999103A (en) * | 2015-08-26 | 2015-10-28 | 朱应生 | Power chuck |
| CN106181829A (en) * | 2016-08-29 | 2016-12-07 | 桂林福达股份有限公司 | A kind of clutch drived disk assy Novel balance frock |
| CN108067692A (en) * | 2017-12-18 | 2018-05-25 | 中国航发贵州黎阳航空动力有限公司 | A kind of involute inner spline centering tensioning clamper |
| CN109015370B (en) * | 2018-09-21 | 2023-08-18 | 郑州运达造纸设备有限公司 | Grinding tool for stirrer shaft sleeve |
| CN109015370A (en) * | 2018-09-21 | 2018-12-18 | 郑州运达造纸设备有限公司 | A kind of blender axle sleeve grinding fixture |
| CN109590498A (en) * | 2018-11-29 | 2019-04-09 | 长春市吉通伟业汽车底盘零部件有限责任公司 | One kind being used for the general core fixture that rises of automotive hub Precision Machining |
| CN110595394A (en) * | 2019-09-30 | 2019-12-20 | 天津大学 | Gapless polyhedral prism mounting structure based on expansion |
| CN111215943A (en) * | 2020-02-19 | 2020-06-02 | 江山市发发科技有限公司 | Machine tool for processing peripheral surface of circular ring with built-in cylinder |
| CN111215943B (en) * | 2020-02-19 | 2021-05-04 | 江山市发发科技有限公司 | Machine tool for processing peripheral surface of circular ring with built-in cylinder |
| CN113579279A (en) * | 2021-08-10 | 2021-11-02 | 贺尔碧格传动技术(常州)有限公司 | Clamping device for ring-shaped parts |
| CN113579279B (en) * | 2021-08-10 | 2022-06-24 | 贺尔碧格传动技术(常州)有限公司 | Clamping device for ring-shaped parts |
| CN114378514A (en) * | 2021-12-30 | 2022-04-22 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Expansion adjustable positioning head assembly for aviation heat exchanger welding fixture |
| CN114378514B (en) * | 2021-12-30 | 2024-05-28 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Expansion adjustable positioning head assembly for welding fixture of aviation heat exchanger |
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Application publication date: 20130612 |