CN201124306Y - Positioning and clamping apparatus - Google Patents
Positioning and clamping apparatus Download PDFInfo
- Publication number
- CN201124306Y CN201124306Y CNU2007201990428U CN200720199042U CN201124306Y CN 201124306 Y CN201124306 Y CN 201124306Y CN U2007201990428 U CNU2007201990428 U CN U2007201990428U CN 200720199042 U CN200720199042 U CN 200720199042U CN 201124306 Y CN201124306 Y CN 201124306Y
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- CN
- China
- Prior art keywords
- hydraulic mandril
- main body
- bearing pin
- jig main
- clamp lever
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Jigs For Machine Tools (AREA)
Abstract
The utility model provides a positioning and clamping device which comprises a clamping mechanism, a clamp body and a positioning ejector pin, wherein the clamping mechanism is composed of a clamping lever and a hydraulic mandril to facilitate clamping workpieces; and a clamping lever reset device consisting of an ejector and a spring is also arranged on the clamp body. The positioning and clamping device provided by the utility model can clamp the workpiece through a cohesive force in the axial direction of the workpiece instead of a pressure along the axial direction of the workpiece adopted by the prior positioning and clamping device, thereby effectively preventing the ejector pin on the tail portion of a lathe from being damaged and preventing the positioning deviation of workpiece while turning the outer circle of a flange shaft.
Description
Technical field
The utility model relates to the clamp mechanism of using in a kind of machining, is specifically related to the hydraulic pressure positioning clamping device of using in a kind of automobile-used flange shaft processing technology.
Background technology
Automobile-used flange shaft is one of important auto parts and components, and its resemblance is, an end of axle is the bigger flange of diameter, and the other end of axle is a diameter outer cylinder gear close with axle, flange, axle, outer cylinder gear three in one.The requirement on machining accuracy of pressing the design code flange shaft is higher, how to guarantee in turning flange shaft cylindrical operation that wherein the clamping workpiece locating accuracy is one of key that reaches the flange shaft requirement on machining accuracy.
In the automobile fitting industry, the method of clamping workpiece location as shown in Figure 1 in the known turning flange shaft cylindrical operation: positioning clamping device is installed on the rotation headstock of turning machine, withstand the two ends centre hole of flange shaft 3 with thimble 1,2, rely on hydraulic mandril 4 axially to hold out against the end face of flange of flange shaft, there is cutting edge the end that hydraulic mandril 4 contacts with end face of flange, hydraulic mandril 4 end cutting edge extruding end face of flange under the axial compressive force effect.Turning adds man-hour flange shaft 3 rotary power and mainly transmits by hydraulic mandril 4.
There are two shortcomings in the clamping method of above-mentioned turning flange shaft cylindrical: the one, if stretch pressure is too little, then be not enough to transmit enough rotary powers, otherwise stretch pressure is too big, and then damage the lathe tail thimble easily; The 2nd, the thimble 1 of hydraulic mandril 4 phase the same sides and the location of workpiece centre hole depart under push rod 4 axial compressive force effects easily.
The utility model content
The purpose of this utility model provides a kind of positioning clamping device of using in turning flange shaft cylindrical operation, this device clamping location is reliable, and can avoid damaging the lathe tail ejector pin mechanism.
The technical solution of the utility model:
A kind of positioning clamping device comprises clamp mechanism, jig main body and location thimble, and it is characterized in that: described clamp mechanism is made up of clamp lever and hydraulic mandril, and clamp lever is connected with jig main body by bearing pin, is positioned at the periphery of jig main body; Hydraulic mandril is positioned at the side at bearing pin center and separated by a distance, hydraulic mandril and bearing pin are perpendicular, and the symmetrical center line of hydraulic mandril and clamp lever is positioned on the same vertical section by location thimble axis, promptly hydraulic mandril outside aim at when mobile and the roof pressure clamp lever to make it be that fulcrum rotates with the bearing pin; The location thimble that is installed on the jig main body centre bore is vertical mutually with bearing pin and hydraulic mandril, and the plane that jig main body is connected with the lathe flange is perpendicular with the location thimble.
For ease of clamping workpiece, on jig main body, also be provided with the clamp lever resetting means, it is a Side of center and hydraulic mandril position opposite that resetting means is positioned at the bearing pin, described resetting means is made of ejection piece and spring.
The using method of positioning clamping device is as follows:
When carrying out turning flange shaft cylindrical operation, the centre hole of the flange end of flange shaft is aimed at the location thimble put into positioning clamping device, clamp lever is in the position of obvolvent flange periphery, holds out against the lathe tailstock thimble, thereby the primer fluid pressing system makes hydraulic mandril roof pressure clamp lever clamping work pieces then.After the completion of processing, the hydraulic system unloading, resetting means automatically resets clamp lever.
The positioning clamping device that the utility model provides relies on the cohesive force clamping work pieces of clamp lever to the workpiece axis direction, changed original positioning clamping device rely on along workpiece spindle to the method for pressure clamp clamping of workpieces, the phenomenon of therefore effectively having avoided the outer bowlder lathe tail thimble rapid wear of turning flange shaft, workpiece location easily to depart from.
Description of drawings
Fig. 1 is a clamping workpiece localization method schematic diagram in the known turning flange shaft cylindrical operation;
Fig. 2 is the utility model structure and using method schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 2, the utility model positioning clamping device is made of jig main body 5, clamp lever 6, hydraulic mandril 7, bearing pin 8, ejection piece 9, spring 10, location thimble 11, hydraulic system 12.Jig main body 5 left Side are connected with lathe flange 13, right Side clamping workpiece 3; Clamp lever 6 is connected with jig main body 5 by bearing pin 8, is positioned at the periphery of jig main body 5, and clamp lever 6 can be rotated for fulcrum by bearing pin 8; Hydraulic mandril 7 is positioned at the left side in bearing pin 8 axle center, and hydraulic mandril 7 is perpendicular with bearing pin 8, and the symmetrical center line of hydraulic mandril 7 and clamp lever 6 is positioned on the same vertical section by location thimble 11 axis; The location thimble 11 that is installed on jig main body 5 centre bores is vertical mutually with bearing pin 8 and hydraulic mandril 7; The plane that jig main body 5 is connected with lathe flange 13 is perpendicular with location thimble 11; The clamp lever resetting means is positioned at the right Side in bearing pin 8 axle center, is made of ejection piece 9 back and forth telescopic moving under spring 10 and clamp lever 6 promotions ejection piece 9 and spring 10.On jig main body 5, clamp mechanism and the clamp lever resetting means be made up of clamp lever 6 and hydraulic mandril 7 are provided with three covers altogether, evenly distribute along circumference.
Claims (2)
1. a positioning clamping device comprises clamp mechanism, jig main body and location thimble, and it is characterized in that: described clamp mechanism is made up of clamp lever and hydraulic mandril, and clamp lever is connected with jig main body by bearing pin, is positioned at the periphery of jig main body; Hydraulic mandril is positioned at the side at bearing pin center and separated by a distance, hydraulic mandril and bearing pin are perpendicular, and the symmetrical center line of hydraulic mandril and clamp lever is positioned on the same vertical section by location thimble axis, promptly hydraulic mandril outside aim at when mobile and the roof pressure clamp lever to make it be that fulcrum rotates with the bearing pin; The location thimble that is installed on the jig main body centre bore is vertical mutually with bearing pin and hydraulic mandril, and the plane that jig main body is connected with the lathe flange is perpendicular with the location thimble.
2. a kind of positioning clamping device according to claim 1, it is characterized in that: on described jig main body, also be provided with the clamp lever resetting means, it is a Side of center and hydraulic mandril position opposite that resetting means is positioned at the bearing pin, and described resetting means is made of ejection piece and spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201990428U CN201124306Y (en) | 2007-12-10 | 2007-12-10 | Positioning and clamping apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201990428U CN201124306Y (en) | 2007-12-10 | 2007-12-10 | Positioning and clamping apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201124306Y true CN201124306Y (en) | 2008-10-01 |
Family
ID=39997722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201990428U Expired - Lifetime CN201124306Y (en) | 2007-12-10 | 2007-12-10 | Positioning and clamping apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201124306Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744625A (en) * | 2012-07-23 | 2012-10-24 | 太仓市旭冉机械有限公司 | Workpiece positioning and clamping device |
| CN103737406A (en) * | 2013-12-30 | 2014-04-23 | 四川江油中恒特钢有限公司 | Special machining fixture for driving gear of rear axle of automobile |
| CN109262084A (en) * | 2018-12-05 | 2019-01-25 | 江苏罡阳股份有限公司 | A kind of hobbing device for the balance shaft with bending bar portion |
| CN112872394A (en) * | 2021-01-14 | 2021-06-01 | 济南江华锻铸机械有限公司 | Turning clamp for flange blind plate |
-
2007
- 2007-12-10 CN CNU2007201990428U patent/CN201124306Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744625A (en) * | 2012-07-23 | 2012-10-24 | 太仓市旭冉机械有限公司 | Workpiece positioning and clamping device |
| CN103737406A (en) * | 2013-12-30 | 2014-04-23 | 四川江油中恒特钢有限公司 | Special machining fixture for driving gear of rear axle of automobile |
| CN103737406B (en) * | 2013-12-30 | 2016-03-23 | 四川江油中恒特钢有限公司 | For automobile axle driving gear clamp dedicated for machining |
| CN109262084A (en) * | 2018-12-05 | 2019-01-25 | 江苏罡阳股份有限公司 | A kind of hobbing device for the balance shaft with bending bar portion |
| CN109262084B (en) * | 2018-12-05 | 2024-05-10 | 江苏罡阳股份有限公司 | Hobbing device for balance shaft with bent rod part |
| CN112872394A (en) * | 2021-01-14 | 2021-06-01 | 济南江华锻铸机械有限公司 | Turning clamp for flange blind plate |
| CN112872394B (en) * | 2021-01-14 | 2022-07-26 | 济南江华锻铸机械有限公司 | Turning clamp for flange blind plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081001 |
|
| CX01 | Expiry of patent term |