Clamp capable of clamping hub stock column and rim

Abstract

The utility model relates to a fixture capable of clamping a hub stock column and a rim, which comprises a fixture supporting piece, a telescopic element capable of changing length is arranged on the surface of the fixture supporting piece, the end part of the telescopic element is in transmission connection with a connecting rod mechanism, and the end part of the connecting rod mechanism is connected with a clamping jaw assembly for clamping the hub stock column. A clamping mechanism for clamping the rim of the hub is arranged at the bottom of the clamp supporting piece. A traditional hub clamp generally only clamps a single part of a material column or a wheel flange, and through the design of a composite clamping structure, clamping of the material column or the wheel flange can be achieved on one set of clamp at the same time.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub clamping technology, specifically to a clamping device capable of holding wheel hub material and rim. Background Technology

[0002] Material protrusions appearing after wheel hub forming refer to excess material protruding in localized areas of the wheel hub due to insufficient metal flow or mold design issues during the casting or forging process. This phenomenon is common in low-pressure casting, high-pressure casting, and spinning processes. It needs to be removed through subsequent machining. The handling method differs for wheel hubs before and after material protrusion removal. Because the wheel hub before removal is generally taller, it's necessary to grasp the material protrusion as much as possible. However, the wheel hub after removal is generally lower, requiring handling of other areas.

[0003] The authorization announcement number CN222779189U discloses a wheel hub processing fixture. According to its specification and drawings, when clamping the wheel hub body, the wheel hub body is placed on the support base, the center hole of the wheel hub body is aligned with the elastic chuck so that the elastic chuck is inserted, and then the pull rod is controlled to move downward, so that the tapered shaft squeezes the elastic chuck so that the elastic chuck clamps the center hole of the wheel hub body, thereby realizing the positioning and internal support clamping of the inner hole of the wheel hub body.

[0004] However, the solution has certain limitations: 1. The clamp can only grip the wheel hub. When there are material columns on the surface of the wheel hub, the gripping structure is prone to collision; 2. The entire gripping structure can only achieve a single function of clamping, which is more expensive. Summary of the Invention

[0005] This invention addresses the problem of clamping both the material post and the rim on a wheel hub simultaneously. It proposes a clamping device capable of holding both the material post and the rim. Traditional wheel hub clamps typically only clamp a single part of the material post or the rim, while this design, through a composite clamping structure, can simultaneously clamp either the material post or the rim on a single clamping device.

[0006] The purpose of this invention is achieved through the following technical solution: a clamp capable of clamping a wheel hub post and a wheel rim, comprising a clamp support member, the surface of which is provided with a telescopic element capable of changing length, the end of which is connected to a linkage mechanism, the end of which is connected to a gripper assembly for clamping the wheel hub post, and the bottom of which is provided with a clamping mechanism for clamping the wheel hub rim.

[0007] Preferably, the telescopic element is a single-piston cylinder, and the surface of the clamp support is provided with a first cylinder support plate. The single-piston cylinder is installed on one side of the first cylinder support plate. The single-piston cylinder is selected to reduce the production cost of manufacturing the clamp and improve the clamping accuracy.

[0008] Preferably, one end of the clamp support is provided with a front end sealing plate, the piston rod end of the telescopic element is connected to a cylinder connecting block, the front end sealing plate can limit the maximum sliding distance of the cylinder connecting block, and the linkage mechanism is drivenly connected to the cylinder connecting block.

[0009] Preferably, the linkage mechanism includes a connecting rod arm, a first hinge pin, and a second hinge pin. The top and bottom surfaces of the cylinder connecting block are hinged to one end of several connecting rod arms. The surface of the clamp support is also provided with a limiting groove. The first hinge pin passes through the hinge point between the cylinder connecting block and the connecting rod arm to the inside of the limiting groove. The ends of adjacent connecting rod arms are hinged to the gripper assembly. The second hinge pin passes through the hinge point between the gripper assembly and the connecting rod arm to the surface of the clamp support.

[0010] Preferably, the gripper assembly includes a left gripper arm, a right gripper arm, a third hinge pin, and a limiting bushing. The surface of the gripper support is also provided with several limiting holes. The third hinge pin is hinged to the interior of each limiting hole. The middle parts of the left gripper arm and the right gripper arm are respectively hinged to the surface of the third hinge pin. The surface of each third hinge pin is also provided with several limiting bushings. The gap between adjacent limiting bushings is used to support the middle part of the left gripper arm or the right gripper arm.

[0011] Preferably, the inner grooves of the left and right claw arms are provided with chuck support plates, and each chuck support plate has a toothed boss at its end. The toothed boss provides greater friction during the clamping of the material column.

[0012] Preferably, the clamping mechanism includes a second cylinder support plate, a double piston cylinder, and a wheel rim clamp. The end of the clamp support is also connected to the second cylinder support plate. The bottom of the second cylinder support plate is provided with a double piston cylinder, and the end of each piston rod of the double piston cylinder is connected to the wheel rim clamp.

[0013] Preferably, the rim clamp includes a clamping arm and a clamping head. Each piston rod end of the dual-piston cylinder is connected to a clamping arm, and each clamping arm end is provided with a clamping head. There is a clamping gap between the clamping head and the bottom of the clamping arm. The clamping gap can hold the rim of the hub. This arrangement is to enable the entire clamp to clamp the rim while simultaneously clamping the material column.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. Traditional wheel hub clamps typically only clamp a single part of the material column or wheel rim. However, this design, through a composite clamping structure, can simultaneously clamp the material column or wheel rim on a single clamp, thus optimizing clamping efficiency and reducing manufacturing costs.

[0016] 2. The gripper assembly will not interfere with the clamping mechanism that holds the wheel rim when clamping the wheel hub material column. This design can not only improve the yield of wheel hubs, but also improve the efficiency of clamping wheel hubs. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is a perspective view of the clamping mechanism of this utility model after it has been disassembled.

[0019] Figure 3 This is a partial exploded view of the present invention;

[0020] Figure 4 For the present utility model in Figure 3 Enlarged view of region A in the image;

[0021] Figure 5 This is a partial cross-sectional view of the present invention;

[0022] Figure 6 This is a perspective view of the present invention.

[0023] The markings in the diagram are: 1. Fixture support; 11. First cylinder support plate; 12. Front end plate; 13. Limiting groove; 2. Telescopic element; 21. Cylinder connecting block; 3. Linkage mechanism; 31. Linkage arm; 32. First hinge pin; 33. Second hinge pin; 4. Gripper assembly; 41. Left gripper arm; 42. Right gripper arm; 43. Third hinge pin; 44. Limiting bushing; 45. Chuck support plate; 46. Toothed boss; 5. Clamping mechanism; 51. Second cylinder support plate; 52. Double piston cylinder; 53. Fixture extension arm; 54. Fixture head. Detailed Implementation

[0024] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0025] like Figure 1 and Figure 2 As shown, a clamp capable of holding a wheel hub post and a wheel rim includes a clamp support 1 connected to the end of an industrial robot. The surface of the clamp support 1 is provided with a telescopic element 2 that can change length. The end of the telescopic element 2 is drivenly connected to a linkage mechanism 3. The end of the linkage mechanism 3 is connected to a gripper assembly 4 for holding the wheel hub post.

[0026] The telescopic element 2 is a single-piston cylinder, and the surface of the clamp support 1 is provided with a first cylinder support plate 11, with the single-piston cylinder installed on one side of the first cylinder support plate 11.

[0027] like Figure 3 and Figure 4 As shown, a front end plate 12 is provided on one side of the clamp support 1, and a cylinder connecting block 21 is connected to the piston rod end of the telescopic element 2. The front end plate 12 can limit the maximum sliding distance of the cylinder connecting block 21, and the linkage mechanism 3 is drivenly connected to the cylinder connecting block 21.

[0028] During the sliding process, the piston rod of the telescopic element 2 can drive the linkage mechanism 3 through the cylinder connecting block 21. During the operation of the linkage mechanism 3, the gripper assembly 4 can simultaneously clamp the material column of the wheel hub. When the cylinder connecting block 21 slides outward, it will be blocked by the front end sealing plate 12, thereby effectively limiting the sliding distance of the piston rod of the telescopic element 2.

[0029] Please continue to refer to this. Figure 4 and Figure 5 The linkage mechanism 3 includes a connecting rod arm 31, a first hinge pin 32, and a second hinge pin 33. The top and bottom surfaces of the cylinder connecting block 21 are hinged to one end of several connecting rod arms 31. The surface of the clamp support 1 is also provided with a limiting groove 13. The first hinge pin 32 passes through the hinge point between the cylinder connecting block 21 and the connecting rod arm 31 to the inside of the limiting groove 13. The ends of adjacent connecting rod arms 31 are hinged to the gripper assembly 4. The second hinge pin 33 passes through the hinge point between the gripper assembly 4 and the connecting rod arm 31 to the surface of the clamp support 1.

[0030] The gripper assembly 4 includes a left gripper arm 41, a right gripper arm 42, a third hinge pin 43, and a limiting bushing 44. The surface of the clamp support member 1 is also provided with several limiting holes. A third hinge pin 43 is hinged to the interior of each limiting hole. The middle portions of the left gripper arm 41 and the right gripper arm 42 are respectively hinged to the surface of the third hinge pin 43. The surface of each third hinge pin 43 is also provided with several limiting bushings 44. The gap between adjacent limiting bushings 44 is used to support the middle portion of the left gripper arm 41 or the right gripper arm 42. The inner grooves of both the left gripper arm 41 and the right gripper arm 42 are provided with chuck support plates 45, and each end of the chuck support plate 45 is provided with a toothed boss 46.

[0031] During movement, the cylinder connecting block 21 pulls one end of each connecting rod arm 31. The first hinge pin 32 at the hinge point between the connecting rod arm 31 and the cylinder connecting block 21 slides inside the limiting groove 13. At this time, the angle of each connecting rod arm 31 relative to the front end plate 12 changes. During the angle change, the connecting rod arm 31 pushes the middle part of the left claw arm 41 and the right claw arm 42 to rotate relative to the surface of the third hinge pin 43. At this time, the ends of the left claw arm 41 and the right claw arm 42 rotate in place relative to the second hinge pin 33; ultimately, the angle between the ends of the left claw arm 41 and the right claw arm 42 changes. During the clamping process, the gap between the toothed bosses 46 of the left claw arm 41 and the right claw arm 42 can clamp the material column of the wheel hub.

[0032] Please continue to refer to this. Figure 6 The bottom of the clamp support member 1 is provided with a clamping mechanism 5 for clamping the wheel hub rim. The clamping mechanism 5 includes a second cylinder support plate 51, a double piston cylinder 52 and a rim clamp. The end of the clamp support member 1 is also connected to the second cylinder support plate 51. The bottom of the second cylinder support plate 51 is provided with a double piston cylinder 52. Each piston rod end of the double piston cylinder 52 is connected to a rim clamp.

[0033] The rim clamp includes a clamp arm 53 and a clamp head 54. Each piston rod end of the dual piston cylinder 52 is connected to a clamp arm 53, and each clamp arm 53 is provided with a clamp head 54 at its end. There is a clamping gap 55 between the clamp head 54 and the bottom of the clamp arm 53. The clamping gap 55 can hold the rim of the wheel hub.

[0034] During the sliding process, each piston rod of the dual-piston cylinder 52 can drive each clamp arm 53 to move. After the gap between adjacent clamp arms 53 changes, the clamping gap 55 of each clamp head 54 can be locked at the rim position of the wheel hub.

[0035] Working principle and usage of this utility model:

[0036] During the sliding process, the piston rod of the telescopic element 2 can drive the linkage mechanism 3 to work via the cylinder connecting block 21. Specifically, during the movement of the cylinder connecting block 21, it pulls one end of each connecting rod arm 31. The first hinge pin 32 at the hinge point between the connecting rod arm 31 and the cylinder connecting block 21 slides inside the limiting groove 13. At that time, the angle of each connecting rod arm 31 relative to the front end plate 12 will change. During the angle change, the connecting rod arm 31 will push the middle part of the left claw arm 41 and the right claw arm 42 to rotate relative to the surface of the third hinge pin 43. At this time, the ends of the left claw arm 41 and the right claw arm 42 are hinged and rotated in place relative to the second hinge pin 33. Ultimately, the angle between the ends of the left claw arm 41 and the right claw arm 42 will change. During the clamping process, the gap between the toothed bosses 46 of the left claw arm 41 and the right claw arm 42 can clamp the material column of the wheel hub.

[0037] During the sliding process, each piston rod of the dual-piston cylinder 52 can drive each clamp arm 53 to move. After the gap between adjacent clamp arms 53 changes, the clamping gap 55 of each clamp head 54 can be locked at the rim position of the wheel hub.

[0038] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A clamp capable of holding a wheel hub post and a wheel rim, comprising a clamp support (1), characterized in that, The clamp support (1) is provided with a telescopic element (2) that can change length. The end of the telescopic element (2) is connected to a linkage mechanism (3). The end of the linkage mechanism (3) is connected to a gripper assembly (4) for clamping the wheel hub material column. The bottom of the clamp support (1) is provided with a clamping mechanism (5) for clamping the wheel hub rim.

2. The clamping device capable of holding the wheel hub post and the wheel rim according to claim 1, characterized in that, The telescopic element (2) is a single-piston cylinder, and the clamp support (1) is provided with a first cylinder support plate (11), and the single-piston cylinder is installed on one side of the first cylinder support plate (11).

3. The clamping device capable of holding the wheel hub post and the wheel rim according to claim 2, characterized in that, The clamp support (1) has a front end plate (12) on one side end. The piston rod end of the telescopic element (2) is connected to a cylinder connecting block (21). The front end plate (12) can limit the maximum sliding distance of the cylinder connecting block (21). The linkage mechanism (3) is connected to the cylinder connecting block (21) in a transmission manner.

4. The clamping device capable of holding the wheel hub post and the wheel rim according to claim 3, characterized in that, The linkage mechanism (3) includes a connecting rod arm (31), a first hinge pin (32) and a second hinge pin (33). The top and bottom surfaces of the cylinder connecting block (21) are hinged to one end of several connecting rod arms (31). The clamp support (1) is also provided with a limiting groove (13). The first hinge pin (32) passes through the hinge point between the cylinder connecting block (21) and the connecting rod arm (31) to the inside of the limiting groove (13). The ends of adjacent connecting rod arms (31) are hinged to the gripper assembly (4). The second hinge pin (33) passes through the hinge point between the gripper assembly (4) and the connecting rod arm (31) to the surface of the clamp support (1).

5. The clamping device capable of holding the wheel hub post and the wheel rim according to claim 4, characterized in that, The gripper assembly (4) includes a left gripper arm (41), a right gripper arm (42), a third hinge pin (43), and a limiting bushing (44). The clamp support (1) is also provided with several limiting holes. The third hinge pin (43) is hinged to the inside of each limiting hole. The middle parts of the left gripper arm (41) and the right gripper arm (42) are respectively hinged to the side of the third hinge pin (43). The side of each third hinge pin (43) is also provided with several limiting bushings (44). The gap between adjacent limiting bushings (44) is used to support the middle part of the left gripper arm (41) or the right gripper arm (42).

6. The clamping device capable of holding the wheel hub post and the wheel rim according to claim 5, characterized in that, The inner grooves of the left claw arm (41) and the right claw arm (42) are provided with chuck support plates (45), and each end of the chuck support plate (45) is provided with a toothed boss (46).

7. The clamping device capable of holding the wheel hub post and the wheel rim according to claim 5, characterized in that, The clamping mechanism (5) includes a second cylinder support plate (51), a double piston cylinder (52) and a wheel rim clamp. The end of the clamp support member (1) is also connected to the second cylinder support plate (51). The bottom of the second cylinder support plate (51) is provided with a double piston cylinder (52). Each piston rod end of the double piston cylinder (52) is connected to a wheel rim clamp.

8. The clamping device capable of holding the wheel hub post and the wheel rim according to claim 7, characterized in that, The rim clamp includes a clamp arm (53) and a clamp head (54). Each piston rod end of the dual piston cylinder (52) is connected to a clamp arm (53), and each clamp arm (53) is provided with a clamp head (54) at its end. There is a clamping gap (55) between the clamp head (54) and the bottom of the clamp arm (53). The clamping gap (55) can hold the rim of the wheel hub.

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