Paw for rapidly and flexibly grabbing forged hub

Abstract

The utility model relates to a gripper capable of quickly and flexibly gripping a forged hub, and belongs to the technical field of automobile part machining, the gripper comprises a base and a gripper assembly, the gripper assembly comprises a first gripper arm and a second gripper arm, and the first gripper arm and the second gripper arm are oppositely arranged on the base; a connecting rod assembly is arranged between the first claw arm and the second claw arm and comprises a connecting rod body, the two ends of the connecting rod body are rotationally connected with a first connecting end and a second connecting end correspondingly, the end, away from the connecting rod body, of the first connecting end is connected with the first claw arm, and the end, away from the second connecting end, of the connecting rod body is connected with the second claw arm. The end, away from the connecting rod body, of the second connecting end is connected with the second claw arm, sliding assemblies are arranged between the base and the first claw arm and between the base and the second claw arm, and the first claw arm and the second claw arm are arranged on the base in a sliding mode through the sliding assemblies. The gripper has the effect that the gripper can still keep a good grabbing synchronization rate after being used for a long time.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts processing, and in particular to a gripper for quickly and flexibly grasping a forged wheel hub. Background Art

[0002] The wheel hub is a key component of the car. It is located in the center of the wheel and connects the tire and the vehicle's suspension system. When the vehicle is driving, the wheel hub is subjected to various deformations and loads. Therefore, in addition to having a unique appearance, it also plays an important role in affecting the performance of the car. According to modern wheel hub manufacturing methods, the wheel hub can be divided into three categories, namely forged wheel hubs, cast wheel hubs and cast-spin wheel hubs. Among them, forged wheel hubs are widely used in high-performance cars, racing cars and sports SUVs due to their excellent mechanical properties and relatively light weight. The forging process uses a high-tonnage forging press to apply pressure to the blank material to cause it to undergo plastic deformation. The heated blank is placed in the mold through the gripper for plastic processing. The current common gripper includes two symmetrically arranged gripper arms, each of which is connected to a cylinder. The two cylinders make the gripper arms move synchronously. After long-term use, the cylinder may be damaged. At this time, the two cylinders may not be at the same frequency, resulting in a low synchronization rate of the two gripper arms, which reduces the efficiency of the gripper grabbing the forged wheel hub. Utility Model Content

[0003] In order to enable the gripper to maintain a good grasping synchronization rate after long-term use, the present application provides a gripper for quickly and flexibly grasping a forged wheel hub.

[0004] The present application provides a gripper for quickly and flexibly grasping a forged wheel hub, which adopts the following technical solution:

[0005] A gripper for quickly and flexibly grasping a forged wheel hub comprises a base and a gripper assembly, the gripper assembly comprising a first gripper arm and a second gripper arm, the first gripper arm and the second gripper arm being relatively arranged on the base, and a connecting rod assembly being arranged between the first gripper arm and the second gripper arm, the connecting rod assembly comprising a connecting rod body, the two ends of the connecting rod body being rotatably connected with a first connecting end and a second connecting end respectively, the end of the first connecting end facing away from the connecting rod body being connected to the first gripper arm, the end of the second connecting end facing away from the connecting rod body being connected to the second gripper arm, a sliding assembly being arranged between the base and the first gripper arm and the second gripper arm, the first gripper arm and the second gripper arm being slidably arranged on the base via the sliding assembly.

[0006] By adopting the above technical scheme, the first claw arm and the second claw arm are relatively arranged on the base, and a connecting rod assembly is arranged between the first claw arm and the second claw arm, a first connecting end is connected to the first claw arm, and a second connecting end is connected to the second claw arm, and the first connecting end and the second connecting end are connected by a connecting rod body, so that the first claw arm and the second claw arm can move synchronously through the connecting rod assembly, and a sliding assembly is arranged between the base and the first claw arm and the second claw arm, so that the first claw arm and the second claw arm are slidably arranged on the base through the sliding assembly. Assuming that the sliding assembly drives the first claw arm to move, under the action of the connecting rod assembly, the sliding assembly also drives the second claw arm to move at the same time, which is beneficial for the claw to maintain a good grasping synchronization rate after long-term use.

[0007] Optionally, the sliding assembly includes a first linear guide and a second linear guide relatively arranged on the base and a first slider and a second slider respectively arranged on the first claw arm and the second claw arm, the first claw arm is slidably arranged on the first linear guide through the first slider, and the second claw arm is slidably arranged on the second linear guide through the second slider.

[0008] By adopting the above technical solution, a first linear guide and a second linear guide are arranged relatively on the base, and a first slider and a second slider are arranged on the first claw arm and the second claw arm respectively. The first claw arm is slidably set on the first linear guide through the first slider, which is conducive to the first claw arm being slidably set on the base through the cooperation of the first slider and the first linear guide, and the second claw arm is slidably set on the second linear guide through the second slider, which is conducive to the second claw arm being slidably set on the base through the cooperation of the second slider and the second linear guide.

[0009] Optionally, a fixing block is provided at one end of the first sliding block and the second sliding block facing away from the base for firmly connecting the first claw arm and the second claw arm to the first sliding block and the second sliding block respectively.

[0010] By adopting the above technical solution, fixed blocks are respectively provided at the ends of the first slider and the second slider facing away from the base, so that the first claw arm and the second claw arm are respectively firmly connected to the first slider and the second slider, which is beneficial for the first claw arm and the second claw arm to be difficult to separate from the base during the synchronous movement.

[0011] Optionally, a cylinder is provided at one end of the base away from the first linear guide rail and the second linear guide rail, and a first connecting block is provided at one end of one of the fixed blocks facing the cylinder, and the first connecting block is connected to the cylinder.

[0012] By adopting the above technical solution, a cylinder is arranged at one end of the base away from the first linear guide and the second linear guide, and a first connecting block is arranged at one end of one of the fixed blocks facing the cylinder. The first connecting block is connected to the cylinder, so that the cylinder only needs to be connected to the first connecting block. The first connecting block is connected to one of the fixed blocks. At this time, the cylinder is opened, and the first connecting block drives the first slider or the second slider to move under the action of the cylinder, that is, the first jaw or the second jaw moves. At the same time, under the action of the connecting rod assembly, the second jaw or the first jaw moves synchronously, which is beneficial to ensure the synchronization rate of the gripper grasping.

[0013] Optionally, a protective cover is provided at one end of the base facing away from the cylinder.

[0014] By adopting the above technical solution, a protective cover is provided at the end of the base away from the cylinder. Since the forging environment is relatively harsh with relatively more oil and dust, the protective cover can shield the slider assembly and the connecting rod assembly, making it difficult for oil and dust to enter the protective cover and affect the operation of the slider assembly and the connecting rod assembly.

[0015] Optionally, a first opening and a second opening for relative sliding movement of the first claw arm and the second claw arm are respectively formed at one end of the protective cover away from the cylinder.

[0016] By adopting the above technical solution, a first opening and a second opening for relative sliding of the first claw arm and the second claw arm are respectively opened at the end of the protective cover away from the cylinder, so that the first claw arm and the second claw arm can still slide relatively without being blocked by the protective cover.

[0017] Optionally, a length of the first opening extending along the direction of the first linear guide rail is less than a length of the first linear guide rail, and a length of the second opening extending along the direction of the second linear guide rail is less than a length of the second linear guide rail.

[0018] By adopting the above technical solution, the length of the first opening extending along the direction of the first linear guide is set to be smaller than the length of the first linear guide, so that the first slider is not easy to slide out of the first linear guide, and the length of the second opening extending along the direction of the second linear guide is set to be smaller than the length of the second linear guide, so that the second slider is not easy to slide out of the second linear guide.

[0019] Optionally, the first claw arm and the second claw arm are respectively provided with a first clamping claw and a second clamping claw for grasping the blank raw material at one end away from the base.

[0020] Optionally, the first clamping jaw and the second clamping jaw are both provided with a plurality of equally spaced and tooth surface moving steel balls that fit the blank raw material.

[0021] By adopting the above technical solution, a number of equidistantly distributed tooth surface movement steel balls that fit the blank raw material are provided at the first jaw and the second jaw. Since the forged blank raw material is relatively rough and has inconsistent shapes, the tooth surface movement steel balls can be adjusted in all directions so that the tooth surface movement steel balls can better fit the blank raw material.

[0022] Optionally, a temperature sensor is provided at the first clamping jaw or the second clamping jaw.

[0023] By adopting the above technical solution, a temperature sensor is provided at the first clamp or the second clamp. Since the forging temperature needs to be controlled, too high or too cold will affect the quality of the blank raw material. The temperature sensor enables the operator to observe the forging temperature, thereby improving the forging quality.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] The first claw arm and the second claw arm are relatively arranged on the base, and a connecting rod assembly is arranged between the first claw arm and the second claw arm, a first connecting end is connected to the first claw arm, and a second connecting end is connected to the second claw arm, and the first connecting end and the second connecting end are connected through a connecting rod body, so that the first claw arm and the second claw arm can move synchronously through the connecting rod assembly, and a sliding assembly is arranged between the base and the first claw arm and the second claw arm, so that the first claw arm and the second claw arm are slidably arranged on the base through the sliding assembly. Assuming that the sliding assembly drives the first claw arm to move, under the action of the connecting rod assembly, the sliding assembly also drives the second claw arm to move at the same time, which is conducive to the hand claw being able to maintain a good grasping synchronization rate after long-term use;

[0026] A first linear guide and a second linear guide are arranged oppositely on the base, and a first slider and a second slider are arranged on the first claw arm and the second claw arm respectively. The first claw arm is slidably arranged on the first linear guide through the first slider, which is conducive to the first claw arm being slidably arranged on the base through the cooperation of the first slider and the first linear guide, and the second claw arm is slidably arranged on the second linear guide through the second slider, which is conducive to the second claw arm being slidably arranged on the base through the cooperation of the second slider and the second linear guide;

[0027] Fixed blocks are respectively provided at the ends of the first slider and the second slider facing away from the base, so that the first claw arm and the second claw arm are respectively firmly connected to the first slider and the second slider, which is conducive to the first claw arm and the second claw arm not being easily separated from the base during synchronous movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural diagram of the overall structure in the embodiment of the present application.

[0029] Figure 2It is a schematic diagram of the exploded structure of the overall structure in the embodiment of the present application.

[0030] Figure 3 yes Figure 2 Schematic diagram of the structure of part A in the middle.

[0031] Figure 4 It is a schematic diagram of the structure of the base in the embodiment of the present application.

[0032] Explanation of the reference numerals: 1. base; 11. cylinder; 111. second connecting block; 12. third opening; 13. protective cover; 131. first opening; 132. second opening; 2. gripper assembly; 21. first gripper arm; 22. second gripper arm; 23. first clamping jaw; 24. second clamping jaw; 241. tooth surface movement steel ball; 242. temperature sensor; 3. sliding assembly; 31. first linear guide rail; 32. second linear guide rail; 33. first slider; 331. first connecting block; 34. second slider; 35. fixed block; 4. connecting rod assembly; 41. connecting rod body; 411. rotating shaft; 42. first connecting end; 43. second connecting end. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-4 This application is described in further detail.

[0034] The present application embodiment discloses a gripper for quickly and flexibly grasping a forged wheel hub. Figure 1 and Figure 2 A gripper for quickly and flexibly grasping a forged wheel hub comprises a base 1, a gripper assembly 2, a sliding assembly 3 and a connecting rod assembly 4. The base 1 and the gripper assembly 2 are slidably connected via the sliding assembly 3, and the gripper assembly 2 is connected to the connecting rod assembly 4, so that the gripper assembly 2 can maintain a synchronous rate of grasping under the action of the connecting rod assembly 4.

[0035] Reference Figure 2 The gripper assembly 2 includes a first gripper arm 21 and a second gripper arm 22 which are arranged opposite to each other. The first gripper arm 21 and the second gripper arm 22 are both connected to the base 1. The ends of the first gripper arm 21 and the second gripper arm 22 which are connected to the base 1 are respectively the lower ends of the first gripper arm 21 and the second gripper arm 22, and the side walls opposite to each other of the first gripper arm 21 and the second gripper arm 22 are respectively the inner side walls of the first gripper arm 21 and the inner side walls of the second gripper arm 22. A first clamping jaw 23 is welded on the inner side wall near the upper end of the first gripper arm 21, and a second clamping jaw 24 is welded on the inner side wall near the upper end of the second gripper arm 22. The first clamping jaw 23 and the second clamping jaw 24 are arranged opposite to each other.

[0036] Reference Figure 2 and Figure 3In order to facilitate the grasping of the blank material, a number of equidistantly distributed tooth surface dynamic steel balls 241 are threadedly connected on the inner walls of the first clamping jaw 23 and the second clamping jaw 24. In the present embodiment, the tooth surface dynamic steel balls 241 are respectively threadedly connected on the inner wall near the upper end and the inner wall near the lower end of the first clamping jaw 23, and the tooth surface dynamic steel balls 241 are also threadedly connected on the inner wall near the upper end and the inner wall near the lower end of the second clamping jaw 24, so that the first clamping jaw 23 and the second clamping jaw 24 can better fit the blank material, and a temperature sensor 242 is threadedly connected at the center of the inner wall of the second clamping jaw 24, so that the operator can observe whether the forging temperature is appropriate.

[0037] Reference Figure 2 The sliding assembly 3 includes a first linear guide 31 and a second linear guide 32 fixed to the base 1 by bolts. The first linear guide 31 and the second linear guide 32 are transversely arranged on the base 1. A first slider 33 is provided at the lower end of the first claw arm 21, and a second slider 34 is provided at the lower end of the second claw arm 22. The first slider 33 is slidably arranged with the first linear guide 31, so that the first claw arm 21 can move left and right under the cooperation of the first slider 33 and the first linear guide 31. The second slider 34 is slidably arranged with the second linear guide 32, so that the second claw arm 22 can move left and right under the cooperation of the first slider 33 and the first linear guide 31. The two sliders 34 can move left and right with the cooperation of the second linear guide 32, and in order to enable the first claw arm 21 and the second claw arm 22 to be firmly connected to the first slider 33 and the second slider 34 respectively, a fixing block 35 is installed on the end of the first slider 33 and the second slider 34 respectively facing away from the base 1, and the end of the fixing block 35 facing away from the first slider 22 or the second slider 34 is fixed to the lower end of the first claw arm 21 or the second claw arm 22 by bolts, and the end of the fixing block 35 facing away from the first claw arm 21 or the second claw arm 22 is fixed to the first slider 33 or the second slider 34 by bolts.

[0038] Reference Figure 2The connecting rod assembly 4 includes a connecting rod body 41, a first connecting end 42 and a second connecting end 43. A rotating shaft 411 is connected at the center position of the connecting rod body 41. The rotating shaft 411 is fixed to the center position of the base 1 between the first linear guide rail 31 and the second linear guide rail 32. The first connecting end 42 and the second connecting end 43 are rotatably connected to the left and right ends of the connecting rod body 41 respectively. The end of the first connecting end 42 away from the connecting rod body 41 is connected to the fixing block 35 for firmly connecting the first claw arm 21, and the end of the second connecting end 43 away from the connecting rod body 41 is connected to the fixing block 35 for firmly connecting the second claw arm 22, so that when the first claw arm 21 slides on the first linear guide rail 31 through the first slider 33, the connecting rod assembly 4 can drive the second claw arm 22 to move in a direction opposite to the first claw arm 21, so that the first claw arm 21 and the second claw arm 22 can have a good synchronization rate under the action of the connecting rod assembly 4.

[0039] Reference Figure 2 and Figure 4 In order to drive the first claw arm 21 and the second claw arm 22 to move relative to each other, in this example, a cylinder 11 is fixed to the end of the base 1 away from the first linear guide 31 and the second linear guide 32 by bolts, and a first connecting block 331 is integrally formed at the end of the first slider 33 away from the first claw arm 21, and the first connecting block 331 extends toward the bottom of the base 1, and a second connecting block 111 is threadedly connected to the piston rod of the cylinder 11, and the first connecting block 331 and the second connecting block 111 are connected by bolts, and a third opening 12 is provided in the base 1 for the first connecting block 331 to slide left and right, so that under the action of the cylinder 11, the first connecting block 331 drives the first slider 33 to slide on the first linear guide 31, that is, the first claw arm 21 moves left and right, and at the same time, under the action of the connecting rod assembly 4, the second slider 34 can be driven to slide on the second linear guide 32 at the same time, that is, the second claw arm 22 moves left and right along the direction opposite to the first claw arm 21.

[0040] Reference Figure 1 and Figure 2 Due to the harsh forging environment, a protective cover 13 is fixed to the upper end of the base 1 by bolts. The protective cover 13 can cover the sliding assembly 3 and the connecting rod assembly 4. In order not to affect the relative movement of the first claw arm 21 and the second claw arm 22, a first opening 131 and a second opening 132 are respectively opened at the upper end of the protective cover 13. The left and right length of the first opening 131 is smaller than the left and right length of the first linear guide 31, so that the first slider 33 is not easy to slide out of the first linear guide 31. The left and right length of the second opening 132 is also smaller than the left and right length of the second linear guide 32, so that the second slider 34 is not easy to slide out of the second linear guide 32.

[0041] The implementation principle of a gripper for quickly and flexibly grabbing a forged wheel hub in an embodiment of the present application is as follows: start the cylinder 11, so that the cylinder 11 drives the first slider 33 to move toward the left on the first linear guide rail 31 through the first connecting block 331, that is, the first claw arm 21 moves toward the left, and at this time, under the action of the connecting rod assembly 4, the second claw arm 22 moves toward the right, and when the first claw arm 21 and the second claw arm 22 are opened to the maximum, the first claw arm 21 and the second claw arm 22 clamp the blank raw material through the first clamping jaw 23 and the second clamping jaw 24, and the blank raw material is firmly fitted through the tooth surface moving steel ball 241, and the distance between the first claw arm 21 and the second claw arm 22 can be adjusted by the cylinder 11.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A gripper for quickly and flexibly grabbing a forged wheel hub, characterized in that: The invention comprises a base (1) and a gripper assembly (2), wherein the gripper assembly (2) comprises a first gripper arm (21) and a second gripper arm (22), wherein the first gripper arm (21) and the second gripper arm (22) are arranged on the base (1) relative to each other, and a connecting rod assembly (4) is arranged between the first gripper arm (21) and the second gripper arm (22), wherein the connecting rod assembly (4) comprises a connecting rod body (41), and the connecting rod body (41) has two ends respectively connected to a first connecting end (42) and a second connecting end ( 43), the first connecting end (42) is connected to the first claw arm (21) at one end away from the connecting rod body (41), and the second connecting end (43) is connected to the second claw arm (22) at one end away from the connecting rod body (41), and a sliding component (3) is provided between the base (1) and the first claw arm (21) and the second claw arm (22), and the first claw arm (21) and the second claw arm (22) are slidably arranged on the base (1) through the sliding component (3).

2. The gripper for quickly and flexibly grabbing a forged wheel hub according to claim 1, characterized in that: The sliding assembly (3) comprises a first linear guide rail (31) and a second linear guide rail (32) which are arranged on the base (1) relative to each other, and a first slider (33) and a second slider (34) which are respectively arranged on the first claw arm (21) and the second claw arm (22); the first claw arm (21) is slidably arranged on the first linear guide rail (31) via the first slider (33), and the second claw arm (22) is slidably arranged on the second linear guide rail (32) via the second slider (34).

3. The gripper for quickly and flexibly grabbing a forged wheel hub according to claim 2, characterized in that: The first sliding block (33) and the second sliding block (34) are respectively provided at one end away from the base (1) with a fixing block (35) for firmly connecting the first claw arm (21) and the second claw arm (22) to the first sliding block (33) and the second sliding block (34) respectively.

4. The gripper for quickly and flexibly grabbing a forged wheel hub according to claim 3 is characterized in that: A cylinder (11) is provided at one end of the base (1) facing away from the first linear guide rail (31) and the second linear guide rail (32), and a first connecting block (331) is provided at one end of one of the fixed blocks (35) facing the cylinder (11), and the first connecting block (331) is connected to the cylinder (11).

5. The gripper for quickly and flexibly grabbing a forged wheel hub according to claim 4 is characterized in that: A protective cover (13) is provided at one end of the base (1) facing away from the cylinder (11).

6. The gripper for quickly and flexibly grabbing a forged wheel hub according to claim 5, characterized in that: The end of the protective cover (13) facing away from the cylinder (11) is respectively provided with a first opening (131) and a second opening (132) for the first claw arm (21) and the second claw arm (22) to slide relative to each other.

7. The gripper for quickly and flexibly grabbing a forged wheel hub according to claim 6, characterized in that: The length of the first opening (131) extending along the direction of the first linear guide rail (31) is less than the length of the first linear guide rail (31), and the length of the second opening (132) extending along the direction of the second linear guide rail (32) is less than the length of the second linear guide rail (32).

8. The gripper for quickly and flexibly grabbing a forged wheel hub according to claim 1, characterized in that: The first claw arm (21) and the second claw arm (22) are respectively provided with a first clamping claw (23) and a second clamping claw (24) for grasping the blank raw material at one end away from the base (1).

9. The gripper for quickly and flexibly grabbing a forged wheel hub according to claim 8, characterized in that: The first clamping jaw (23) and the second clamping jaw (24) are both provided with a plurality of equally spaced tooth surface moving steel balls (241) that fit the blank raw material.

10. The gripper for quickly and flexibly grabbing a forged wheel hub according to claim 9, characterized in that: A temperature sensor (242) is provided at the first clamping jaw (23) or the second clamping jaw (24).

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