CN104801785A - Radial positioning type external gear ring gear shaping clamp - Google Patents
Radial positioning type external gear ring gear shaping clamp Download PDFInfo
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- CN104801785A CN104801785A CN201510142697.0A CN201510142697A CN104801785A CN 104801785 A CN104801785 A CN 104801785A CN 201510142697 A CN201510142697 A CN 201510142697A CN 104801785 A CN104801785 A CN 104801785A
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- pin
- pull bar
- shaping clamp
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Abstract
The invention discloses a radial positioning type external gear ring gear shaping clamp. The radial positioning type external gear ring gear shaping clamp is composed by a base, a pull rod, a threaded rod, an open gasket, pins and springs together. The base is installed on a matched slotting machine working table in a positioning mode, the pull rod is axially inserted into an internal hole of the base, the upper end of the pull rod is in the shape of hexagon and is provided with an annular groove for containing the open gasket, the threaded rod for axial adjustment is arranged in the center of the upper end of the pull rod, radial through holes are evenly formed in the part, corresponding to the inner wall of a workpiece, of the circumference of the pull rod, one pin is assembled in each radial through hole in a clearance fit mode, and the bottom end of the threaded rod and the inner ends of the pins are used in cooperation to form a structure with adjustable radial displacement. According to the radial positioning type external gear ring gear shaping clamp, on one hand, the inner wall of the workpiece is supported by evenly distributed pins, the rigidity of the workpiece is improved in the shaping, cutting and clamping process, and cutting deformation is reduced; on the other hand, the fit clearance between the workpiece and the base is evenly divided through the pins which extend equivalently in the radial direction, and therefore, positioning accuracy can be easily improved.
Description
Technical field
The present invention relates to a kind of machining fixture, specifically, the present invention relates to a kind of mandrel class fixture for shaping, this fixture is used for external toothing radial location gear shaping.
Background technology
External toothing is the basic component of synchronized in automobile gearbox, and this kind of thin wall cylinder-shaped external toothing is directly used in transmitting torque.The accuracies of form and position such as external toothing circularity and circular runout are comparatively large on transmission quality impact, and in manufacture process, Gear Shaping is critical process, and the principal element affecting Gear Shaping quality is the location structure of matched clamp.Now, the industry generally adopts expansion core class or optical axis class fixture as external toothing location slotting fixture, and the clamp structure of prior art is relatively simple, installs easily, can effective location.Because expansion core axle or optical axis and external toothing inner hole are matched in clearance, add in gear shaping process and there is radial load between cutter and workpiece, radial load facilitates the location fit error of workpiece and fixture, must affect Gear Shaping quality.Although expansion core axle can eliminate the radial fit gap with workpiece by elastic deformation, thin-walled external toothing is because of self rigidity deficiency, very sensitive to the radial load applied, when historical facts or anecdotes border uses, expansion core axle cannot abundant swelling workpiece, and workpiece can not get reliably locating affecting gear shaping efficiency and gear shaping quality.
Summary of the invention
The present invention, mainly for the deficiencies in the prior art, proposes a kind of location structure simple, and it is convenient to install, and locates reliable radial location formula external toothing gear-shaping clamp.This fixture workpiece spindle to the basis of radial location on make axial compression.Guarantee that workpiece makes Gear Shaping after elimination radial clearance.
The present invention is achieved through the following technical solutions technical goal.
Radial location formula external toothing gear-shaping clamp, it is made up of jointly pedestal, pull bar, screw rod, open washer, pin and spring.Described pedestal is the setting element of built-in axially extending bore, and bottom shoulder coordinates with supporting slotting machine table positions, and shoulder endoporus upward and workpiece small end outer wall matched in clearance, this shoulder outer diameter is less than workpiece root circle.Described pull bar upper end is provided with outer-hexagonal and the annular groove with open washer matched in clearance, and pull bar from top to bottom runs through pedestal axially extending bore, exposes the external thread section of pull bar for connecting external draw-gear from base bottom.Its improvements are: described pull bar upper end is provided with the screw rod for axial adjustment between two parties, at same circumferentially uniform 3 ~ 6 radial direction through hole of the corresponding workpiece inner wall of pull bar, the pin that in every radial direction through hole, an equipped interradicular space coordinates, pin is provided with spring between the inner, axially adjustable screw rod bottom coordinates with pin the inner, forms pin radial displacement adjustable structure.
In said structure, described pin length is equal, and one end is outwardly semicircle head, and one end is inwardly provided with 40
0~ 50
0chamfering.Pedestal shoulder external diameter upward and open washer external diameter 2 ~ 4mm less of the root circle of workpiece.Screw flight is fine thread, is convenient to fine radial displacement.Spring is compression spring, is convenient to pin return.
The present invention compared with prior art, has following good effect:
1, simple, easy to manufacture, the flexible adjustment of pin radial displacement structure;
2, the fit clearance of workpiece and pedestal divided equally by the pin that radial equivalent is stretched out, and is conducive to improving positioning precision;
3, uniform pin radial support workpiece inner wall, plays the effect strengthening workpiece rigidity, is conducive to reducing cutting deformation.
Accompanying drawing explanation
Fig. 1 is structural profile schematic diagram of the present invention.
Fig. 2 is the structure enlarged diagram that screw rod coordinates with pin.
Detailed description of the invention
Below with reference to the accompanying drawings and in conjunction with the embodiments, the invention will be further described.
Embodiment shown in Fig. 1 is the radial location formula external toothing gear-shaping clamp for synchronized external toothing processing in sedan gear-box, and it is made up of jointly pedestal 1, pull bar 2, screw rod 3, open washer 4, pin 5 and spring 6.Described pedestal 1 is a kind of setting element of built-in axially extending bore, it coordinates with supporting slotting machine table positions with bottom shoulder, shoulder endoporus upward and workpiece 7 smaller diameter end outer wall matched in clearance, for the ease of Gear Shaping, this shoulder outer diameter is equal to the external diameter of open washer 4.For convenience of quick dispatch, the external diameter of pedestal 1 shoulder external diameter upward and open washer 4 is all little than the root circle of workpiece 7, all little 3mm of the present embodiment.Described pull bar 2 is the compressing members transmitting power, and it is similar to bolt, and upper end is provided with outer-hexagonal and settles the annular groove of open washer 4.The perpendicular pull bar 2 put from top to bottom runs through pedestal 1 axially extending bore, forms the positioning compression structure coaxial with pedestal 1.This structure treats that workpiece 7 is placed in pedestal 1 shoulder hole upward, then is inserted from the side in the annular groove of pull bar 2 by open washer 4.The perpendicular pull bar 2 put exposes a joint external thread section from pedestal 1 bottom, and external thread section herein, for connecting external draw-gear, makes pull bar 2 with external draw-gear knee-action.External draw-gear in the present embodiment is cylinder, the linkage pull rod 2 when the descent of piston of cylinder, and the open washer 4 dynamic with pull bar 2 is exerted pressure workpiece 7.Otherwise the piston stroking upward of cylinder, then the pull bar 2 linked raises and loosens and clamps workpiece 7, and workpiece 7 is a kind of external toothings, belongs to typical thin-wall part, and its structural rigidity is poor, not responsive to radial Z-TEK.In order to improve the rigidity of workpiece 7 when shaping, and eliminate workpiece 7 with pedestal 1 towards upper shoulder inner hole gap on the impact of gear shaping quality, the present invention is on the basis of above-mentioned positioning compression structure, pin displacement adjustable structure has as shown in Figure 2 been set up again on pull bar 2, concrete structure is the screw rod 3 that pull bar 2 upper end is provided with between two parties for axial adjustment, at same circumferentially uniform 4 radial direction through hole of pull bar 2 corresponding workpiece 7 inwall, the pin 5 that in every radial direction through hole, an equipped interradicular space coordinates, screw rod 3 bottom coordinates pin 5 inner.Pin 5 used is isometric, and pin 5 one end is outwardly semicircle head, and one end is inwardly provided with 45
0chamfering, is provided with spring 6 between pin 5, this spring 6 is compression spring.Turn screw rod 3 can regulate the radial position of pin 5, rotary screw 3 makes pin 5 stretch out the inwall of workpiece pressing 7 to the right, supporting role strengthening workpiece 7 positioning and rigid on pedestal 1 on the one hand of pin 5, it is on the other hand the fit clearance that pin 5 that radial equivalent is stretched out has divided equally workpiece 7 and pedestal 1, its result is conducive to improving positioning precision, the negative effect of effective minimizing radial load, is conducive to the gear shaping quality improving workpiece 7.Left-handed screw 3 cancels the constraint of pin 5 pairs of workpiece 7, is convenient to workpiece 7 and loads and unloads.In the present invention, the radial displacement of pin 5 is very little, and in order to improve fine setting quality, the screw rod 3 in the present embodiment adopts the fine thread of M10 × 1.
Claims (5)
1. a radial location formula external toothing gear-shaping clamp, it is made up of jointly pedestal (1), pull bar (2), screw rod (3), open washer (4), pin (5) and spring (6); The setting element that described pedestal (1) is built-in axially extending bore, bottom shoulder coordinates with supporting slotting machine table positions, shoulder endoporus upward and workpiece (7) smaller diameter end outer wall matched in clearance, and this shoulder outer diameter is less than workpiece (7) root circle; Described pull bar (2) upper end is provided with outer-hexagonal and settles the annular groove of open washer (4), and pull bar (2) from top to bottom runs through pedestal (1) axially extending bore, exposes the external thread section of pull bar (2) for connecting external draw-gear from pedestal (1) bottom; It is characterized in that: described pull bar (2) upper end is provided with the screw rod (3) for axial adjustment between two parties, at same circumferentially uniform 3 ~ 6 radial direction through hole of pull bar (2) corresponding workpiece (7) inwall, the pin (5) that in every radial direction through hole, an equipped interradicular space coordinates, spring (6) is provided with between pin (5) the inner, axially adjustable screw rod (3) bottom coordinates with pin (5) the inner, forms pin (5) radial displacement adjustable structure.
2. radial location formula external toothing gear-shaping clamp according to claim 1, it is characterized in that: described pin (5) length is equal, one end is outwardly semicircle head, and one end is inwardly provided with 40
0~ 50
0chamfering.
3. radial location formula external toothing gear-shaping clamp according to claim 1, is characterized in that: described pedestal (1) shoulder external diameter upward and open washer (4) external diameter 2 ~ 4mm less of the root circle of workpiece (7).
4. radial location formula external toothing gear-shaping clamp according to claim 1, is characterized in that: the screw thread of described screw rod (3) is fine thread.
5. radial location formula external toothing gear-shaping clamp according to claim 1, is characterized in that: described spring (6) is compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510142697.0A CN104801785A (en) | 2015-03-30 | 2015-03-30 | Radial positioning type external gear ring gear shaping clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510142697.0A CN104801785A (en) | 2015-03-30 | 2015-03-30 | Radial positioning type external gear ring gear shaping clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104801785A true CN104801785A (en) | 2015-07-29 |
Family
ID=53687212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510142697.0A Pending CN104801785A (en) | 2015-03-30 | 2015-03-30 | Radial positioning type external gear ring gear shaping clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104801785A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109773243A (en) * | 2019-02-27 | 2019-05-21 | 横店集团英洛华电气有限公司 | Ring gear radial hole and axial hole auxiliary processing device |
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|---|---|---|---|---|
| CN102490181A (en) * | 2011-11-21 | 2012-06-13 | 哈尔滨工业大学 | Gripping mechanism for replacing spatial on-orbit modules |
| CN202317098U (en) * | 2011-11-02 | 2012-07-11 | 新魁液压技术有限公司 | Steel ball centering inner hole expanding clamp |
| JP4989789B1 (en) * | 2012-01-06 | 2012-08-01 | 大田精工株式会社 | Dry cutting gear cutting machine |
| CN203140905U (en) * | 2013-03-20 | 2013-08-21 | 泰州市里华齿轮厂 | Gear shaping tensioning fixture |
| CN103817543A (en) * | 2014-03-03 | 2014-05-28 | 中联重科股份有限公司 | Fixture for clamping circular workpiece |
| CN104368837A (en) * | 2014-11-19 | 2015-02-25 | 常州市常欧金属制品有限公司 | Expansion fixture device |
| CN104384627A (en) * | 2014-11-17 | 2015-03-04 | 江苏太平洋精锻科技股份有限公司 | Tooth inserting clamp of thin wall outer toothed ring |
| CN204603482U (en) * | 2015-03-30 | 2015-09-02 | 江苏太平洋齿轮传动有限公司 | Internal-expansion type external toothing gear-shaping clamp |
-
2015
- 2015-03-30 CN CN201510142697.0A patent/CN104801785A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202317098U (en) * | 2011-11-02 | 2012-07-11 | 新魁液压技术有限公司 | Steel ball centering inner hole expanding clamp |
| CN102490181A (en) * | 2011-11-21 | 2012-06-13 | 哈尔滨工业大学 | Gripping mechanism for replacing spatial on-orbit modules |
| JP4989789B1 (en) * | 2012-01-06 | 2012-08-01 | 大田精工株式会社 | Dry cutting gear cutting machine |
| CN203140905U (en) * | 2013-03-20 | 2013-08-21 | 泰州市里华齿轮厂 | Gear shaping tensioning fixture |
| CN103817543A (en) * | 2014-03-03 | 2014-05-28 | 中联重科股份有限公司 | Fixture for clamping circular workpiece |
| CN104384627A (en) * | 2014-11-17 | 2015-03-04 | 江苏太平洋精锻科技股份有限公司 | Tooth inserting clamp of thin wall outer toothed ring |
| CN104368837A (en) * | 2014-11-19 | 2015-02-25 | 常州市常欧金属制品有限公司 | Expansion fixture device |
| CN204603482U (en) * | 2015-03-30 | 2015-09-02 | 江苏太平洋齿轮传动有限公司 | Internal-expansion type external toothing gear-shaping clamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109773243A (en) * | 2019-02-27 | 2019-05-21 | 横店集团英洛华电气有限公司 | Ring gear radial hole and axial hole auxiliary processing device |
| CN109773243B (en) * | 2019-02-27 | 2023-10-13 | 浙江联宜电机有限公司 | Auxiliary device for machining radial holes and axial holes of annular gear |
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Application publication date: 20150729 |
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