CN214768961U - Clamp for turning small end excircle of differential case - Google Patents
Clamp for turning small end excircle of differential case Download PDFInfo
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- CN214768961U CN214768961U CN202120778689.6U CN202120778689U CN214768961U CN 214768961 U CN214768961 U CN 214768961U CN 202120778689 U CN202120778689 U CN 202120778689U CN 214768961 U CN214768961 U CN 214768961U
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- centre gripping
- differential case
- clamping
- pull rod
- hydraulic
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Abstract
The utility model relates to an automobile-used anchor clamps of differential case car tip excircle, including hydraulic pressure three-jaw chuck, hydraulic pressure three-jaw chuck includes mount pad and three jack catch, still includes three centre gripping arm, the centre gripping arm is provided with exposed core, interlude and drive end, the drive end is connected with actuating mechanism, the interlude is articulated with hydraulic pressure three-jaw chuck, and the centre gripping of three centre gripping arm drive end is concentric with the centre gripping of jack catch. During the clamping, utilize the three jack catch of hydraulic pressure three-jaw chuck to carry out the automatic centering centre gripping to the main aspects excircle of differential case, three jack catch only plays the effect of location, can guarantee to the location accuracy of differential case, it is tight with the biggest excircle clamp of differential case to recycle three centre gripping arm, improve the centre gripping stability to the differential case, make the centre gripping rigidity of differential case increase, whole differential case can be more stable when processing tip excircle, and dimensional error reduces, improves the uniformity of machining precision and size.
Description
Technical Field
The utility model belongs to the technical field of the differential mechanism shell processing technique and specifically relates to a differential mechanism shell car tip excircle is anchor clamps for car.
Background
When the differential case is machined, the excircle of the large end is generally machined firstly, and then the excircle of the small end is machined.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a differential case car tip excircle car anchor clamps is provided, increase the centre gripping rigidity, improve the uniformity of product size.
The utility model provides a technical scheme that its technical problem adopted is: differential case car tip excircle car is with anchor clamps, including hydraulic pressure three-jaw chuck, hydraulic pressure three-jaw chuck includes mount pad and three jack catch, still includes three centre gripping arm, the centre gripping arm is provided with exposed core, interlude and drive end, the drive end is connected with actuating mechanism, the interlude is articulated with hydraulic pressure three-jaw chuck, and the centre gripping center of three centre gripping arm drive end is concentric with the centre gripping center of jack catch.
Furthermore, the driving mechanism is a hydraulic pull rod, the hydraulic pull rod is arranged in the mounting seat and is in sliding fit with the mounting seat, and the hydraulic pull rod is coaxial with the mounting seat; the driving ends of the three clamping arms are hinged with a hydraulic pull rod.
Furthermore, a movable sleeve is arranged at the end part of the hydraulic pull rod, one end of the movable sleeve is provided with an end plate, and the other end of the movable sleeve is hinged with the clamping arm; the end part of the hydraulic pull rod penetrates through the end plate and is connected with a baffle plate, and a spring is arranged between the baffle plate and the end plate.
Further, the driving end of the clamping arm is provided with a strip-shaped hole, a first pin shaft is arranged in the strip-shaped hole, and the first pin shaft is connected with the movable sleeve.
Furthermore, the jack catch is door-shaped, the interlude of centre gripping arm passes the jack catch and with articulated with the jack catch through second round pin axle.
The utility model has the advantages that: during the clamping, utilize the three jack catch of hydraulic pressure three-jaw chuck to carry out the automatic centering centre gripping to the main aspects excircle of differential case, three jack catch only plays the effect of location, can guarantee to the location accuracy of differential case, it is tight with the biggest excircle clamp of differential case to recycle three centre gripping arm, improve the centre gripping stability to the differential case, make the centre gripping rigidity of differential case increase, whole differential case can be more stable when processing tip excircle, and dimensional error reduces, improves the uniformity of machining precision and size.
Drawings
FIG. 1 is a perspective view of the present invention in use;
FIG. 2 is a schematic cross-sectional view of the present invention in use;
reference numerals: 1-mounting seat; 2-three jaws; 3-a clamping arm; 4-hydraulic pull rod; 5, a movable sleeve; 6-end plate; 7, a baffle plate; 8, a spring; 9-strip-shaped holes; 10-a first pin; 11-a second pin; 100-differential case.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1 and 2, the utility model discloses an automobile-used anchor clamps of differential case car tip excircle, including hydraulic pressure three-jaw chuck, hydraulic pressure three-jaw chuck includes mount pad 1 and three jack catch 2, still includes three centre gripping arm 3, centre gripping arm 3 is provided with exposed core, interlude and drive end, the drive end is connected with actuating mechanism, the interlude is articulated with hydraulic pressure three-jaw chuck, and the centre gripping of three exposed core 3 drive end is concentric with the centre gripping of jack catch 2.
The hydraulic three-jaw chuck adopts the existing working principle, utilizes the three jaws 2 of hydraulic drive to move synchronously, can realize automatic centering clamping, mainly plays the role of positioning, does not need great clamp force, ensures the accuracy of positioning. The clamping arm 3 is used for providing sufficient clamping force to ensure the clamping rigidity of the differential case 100, specifically, during clamping, the large-end outer circle of the differential case 100 is centered and clamped by the three clamping jaws 2, so that the positioning accuracy is ensured, and then the three clamping arms 3 are driven by the driving mechanism to rotate, so that the clamping ends of the clamping arms 3 clamp the maximum outer circle of the differential case 100, and the stable positioning and the clamping rigidity of the differential case 100 can be ensured.
The driving mechanism can be three hydraulic cylinders or air cylinders arranged on the outer wall of the mounting seat 1, the driving end of each clamping arm 3 is hinged with one hydraulic cylinder or one air cylinder through a connecting piece, and during clamping, the hydraulic cylinders or the air cylinders extend to push the clamping arms 3 to rotate, so that the clamping ends of the clamping arms 3 clamp the maximum excircle of the differential case 100. In order to reduce the volume of the whole clamp and simplify the structure, as a preferred embodiment:
the driving mechanism is a hydraulic pull rod 4, the hydraulic pull rod 4 is arranged in the mounting seat 1 and is in sliding fit with the mounting seat 1, and the hydraulic pull rod 4 is coaxial with the mounting seat 1; the driving ends of the three clamping arms 3 are hinged with a hydraulic pull rod 4. The hydraulic pull rod 4 is connected with a hydraulic cylinder, and when the hydraulic pull rod 4 is clamped, the hydraulic pull rod 4 moves towards a direction away from the differential case 100, so that the three clamping arms 3 can be pulled to rotate, and the clamping action is completed. After the machining is completed, the hydraulic link 4 is moved in the direction of the differential case 100, and the clamp arm 3 is released. Because the hydraulic pull rod 4 is located inside the mounting seat 1, the volume of the hydraulic three-jaw chuck cannot be increased, the hydraulic pull rod 4 adopts a hydraulic system as power, the hydraulic three-jaw chuck also adopts the hydraulic system as power, only an oil way needs to be added on the basis of the original hydraulic system, and the transformation is more convenient.
In order to realize automatic reset, a movable sleeve 5 is arranged at the end part of the hydraulic pull rod 4, an end plate 6 is arranged at one end of the movable sleeve 5, and the other end of the movable sleeve is hinged with the clamping arm 3; the end of the hydraulic pull rod 4 passes through the end plate 6 and is connected with a baffle plate 7, and a spring 8 is arranged between the baffle plate 7 and the end plate 6. When the differential case 100 is clamped, the hydraulic pull rod 4 moves to compress the spring 8 to generate elastic force, and when the differential case 100 is loosened, the hydraulic system unloads the pulling force on the hydraulic pull rod 4, and the spring 8 resets to drive the hydraulic pull rod 4 to automatically reset. In addition, the spring 8 also plays a role of buffering.
When the hydraulic pull rod 4 moves axially to pull the clamping arm 3 to rotate, the position of the clamping arm 3 in the radial direction changes because the driving end of the clamping arm 3 rotates instead of moving axially, so a structure which is suitable for the radial position change of the driving end of the clamping arm 3 needs to be arranged, the structure can be a connecting rod, one end of the connecting rod is hinged with the movable sleeve 5 through a pin, and the other end of the connecting rod is hinged with the driving end of the clamping arm 3 through a pin. As a preferred embodiment, a strip-shaped hole 9 is formed in the driving end of the holding arm 3, a first pin 10 is arranged in the strip-shaped hole 9, the first pin 10 can slide along the strip-shaped hole 9, and the first pin 10 is connected with the movable sleeve 5. When the hydraulic pull rod 4 moves axially, the first pin shaft 10 is pulled to move axially, the first pin shaft 10 slides in the strip-shaped hole 9, and meanwhile, the driving end of the clamping arm 3 is driven to rotate, so that the differential case 100 is clamped or loosened.
The clamping arm 3 can be arranged between two adjacent clamping jaws 2, preferably, the clamping jaws 2 are door-shaped, and the middle section of the clamping arm 3 penetrates through the clamping jaws 2 and is hinged with the clamping jaws 2 through the second pin shaft 11. When the clamping device is used, the clamping jaw 2 is firstly utilized to clamp the large-end excircle of the differential case 100, the clamping jaw 2 moves along the radial direction towards the clamping center, and the clamping arm 3 can be driven to move, so that the distance from the clamping end of the clamping arm 3 to the differential case 100 is reduced, and when the hydraulic pull rod 4 is utilized to drive the clamping arm 3 to rotate, the hydraulic pull rod 4 translates for a smaller distance, and the clamping end of the clamping arm 3 clamps the maximum excircle of the differential case 100 when the clamping arm 3 is driven to rotate for a smaller angle.
To sum up, the utility model discloses a reform transform current hydraulic pressure three-jaw chuck, utilize 2 self-centering of jack catch, guarantee the accuracy of location, utilize centre gripping arm 3 to provide the clamp force, guarantee to stabilize ground centre gripping to differential case 100, improve the rigidity of centre gripping, avoid when processing differential case 100 tip excircle the surplus differ, improve the size uniformity of product.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. Differential case car tip excircle car is with anchor clamps, including hydraulic pressure three-jaw chuck, hydraulic pressure three-jaw chuck includes mount pad (1) and three jack catch (2), its characterized in that: still include three centre gripping arm (3), centre gripping arm (3) are provided with exposed core, interlude and drive end, the drive end is connected with actuating mechanism, the interlude is articulated with hydraulic pressure three-jaw chuck, and the centre gripping center of three centre gripping arm (3) drive end is concentric with the centre gripping center of jack catch (2).
2. The differential carrier small end outer circle turning clamp of claim 1, wherein: the driving mechanism is a hydraulic pull rod (4), the hydraulic pull rod (4) is arranged in the mounting seat (1) and is in sliding fit with the mounting seat (1), and the hydraulic pull rod (4) is coaxial with the mounting seat (1); the driving ends of the three clamping arms (3) are hinged with a hydraulic pull rod (4).
3. The differential carrier small end outer circle turning clamp of claim 2, wherein: a movable sleeve (5) is arranged at the end part of the hydraulic pull rod (4), one end of the movable sleeve (5) is provided with an end plate (6), and the other end of the movable sleeve is hinged with the clamping arm (3); the end part of the hydraulic pull rod (4) penetrates through the end plate (6) and is connected with a baffle plate (7), and a spring (8) is arranged between the baffle plate (7) and the end plate (6).
4. The differential carrier small end outer circle turning clamp of claim 3, wherein: the driving end of the clamping arm (3) is provided with a strip-shaped hole (9), a first pin shaft (10) is arranged in the strip-shaped hole (9), and the first pin shaft (10) is connected with the movable sleeve (5).
5. The differential carrier small end outer circle turning clamp of claim 2, wherein: the clamping jaw (2) is door-shaped, and the middle section of the clamping arm (3) penetrates through the clamping jaw (2) and is hinged with the clamping jaw (2) through a second pin shaft (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120778689.6U CN214768961U (en) | 2021-04-15 | 2021-04-15 | Clamp for turning small end excircle of differential case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120778689.6U CN214768961U (en) | 2021-04-15 | 2021-04-15 | Clamp for turning small end excircle of differential case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214768961U true CN214768961U (en) | 2021-11-19 |
Family
ID=78687181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120778689.6U Active CN214768961U (en) | 2021-04-15 | 2021-04-15 | Clamp for turning small end excircle of differential case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214768961U (en) |
-
2021
- 2021-04-15 CN CN202120778689.6U patent/CN214768961U/en active Active
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