Fixture for machining automobile die parts

Abstract

The utility model discloses a clamp for machining automobile die parts. The clamp comprises a workbench, and two sets of symmetrically-arranged clamping assemblies are arranged at the two ends of the workbench. A bearing seat is arranged in the middle of the upper portion of the workbench, a rotating shaft is arranged in the bearing seat, and a rotating arm is fixedly installed at the top end of the rotating shaft. Connecting rods are arranged at the two ends of the rotating arm correspondingly and movably connected with the clamping assemblies correspondingly. According to the utility model, the two groups of symmetrically arranged clamping components can flexibly adapt to automobile die parts with different sizes, and the movable clamping jaw of the clamping jaw cylinder is matched with the flexible chuck, so that the die parts can be stably and uniformly clamped in the machining process; the gear motor drives the worm and the worm gear to be in meshing transmission, movement of the rotating arm and the connecting rod can be conveniently controlled, then the distance between the two clamping assemblies is adjusted, automatic clamping of mold parts of different sizes is achieved, the time and workload of manual clamp adjusting are greatly reduced through the design, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mold parts processing, in particular to a clamp for processing automobile mold parts. Background Art

[0002] With the rapid development of the automobile industry, the precision and quality requirements of automobile parts are increasing day by day. The manufacturing of these parts depends largely on the precise pressing of molds. In order to ensure the qualification rate of automobile parts, the size, shape and material selection of mold parts must be strictly controlled.

[0003] In the production and processing of automotive mold parts, the role of the fixture is crucial. The fixture must not only ensure the stability of the mold parts during the processing, but also ensure that the processing accuracy meets the standards. However, the existing fixture design tends to be a fixed structure, which limits the adaptability of the fixture to mold parts of different sizes. Whenever parts of different sizes need to be processed, the fixture needs to be cumbersomely disassembled and adjusted, which not only increases the difficulty of manual operation, but also seriously affects the processing efficiency; in addition, after each processing is completed, the fixed position of the fixture needs to be manually readjusted, which undoubtedly increases production costs and reduces overall production efficiency. Summary of the invention

[0004] The purpose of the utility model is to provide a clamp for processing automobile mold parts to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A clamp for processing automobile mold parts, comprising a workbench, wherein supporting feet are provided at the four corners of the bottom of the workbench; two groups of symmetrically arranged clamping assemblies are provided at both ends of the workbench, wherein the two groups of clamping assemblies have the same structure and are respectively movably connected to the workbench; a mounting hole is opened at the middle position above the workbench, wherein a bearing seat is provided in the mounting hole; a rotating shaft is provided in the bearing seat, wherein a rotating arm is fixedly installed on the top of the rotating shaft; connecting rods are respectively provided at both ends of the rotating arm, wherein the connecting rods are respectively movably connected to the clamping assemblies; a positioning plate is provided between the two groups of clamping assemblies, wherein the positioning plate is arranged above the bearing seat; a positioning groove is opened at the upper end of the positioning plate, wherein the two ends of the positioning plate are respectively fixedly connected to the workbench through positioning brackets.

[0007] Preferably, a reduction motor is provided under the workbench, wherein the output shaft of the reduction motor is fixedly connected to a worm via a coupling; the lower end of the rotating shaft passes through the bearing seat and is fixedly mounted with a worm wheel, wherein the worm wheel and the worm are meshed for transmission.

[0008] Preferably, the clamping assembly comprises a movable seat, wherein a clamping cylinder is provided at the upper end of the movable seat; the cylinder body of the clamping cylinder is fixedly connected to the movable seat via a pad, wherein the movable clamping claw of the clamping cylinder is arranged toward one side of the positioning plate.

[0009] Preferably, a clamp is provided on the movable jaw, wherein the clamp and the movable jaw are detachably connected; the lower end of the clamp is connected to the movable jaw, wherein a fixing groove is provided on the upper end of the clamp; a flexible clamp is provided in the fixing groove, wherein the thickness of the flexible clamp is greater than the depth of the fixing groove.

[0010] Preferably, two symmetrically arranged sliding blocks are installed at the lower end of the movable seat, and two linear slide rails matched with the sliding blocks are provided at one end of the workbench close to the movable seat.

[0011] Preferably, one end of the connecting rod is hinged to the top end of the rotating arm through a hinged hole bolt, and the other end of the connecting rod is hinged to the lower end of the movable seat through a movable shaft.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the utility model has the advantages of strong adaptability, simple operation, accurate positioning, stable structure and detachable design, and can significantly improve the processing accuracy and efficiency of automobile mold parts. Through two groups of symmetrically arranged clamping components, it can flexibly adapt to automotive mold parts of different sizes. The movable clamping jaws of the clamping cylinder cooperate with the flexible chuck to ensure that the mold parts are stably and evenly clamped during the processing, reducing the processing errors caused by improper clamping; through the meshing transmission of the worm and the worm wheel driven by the reduction motor, the movement of the rotating arm and the connecting rod can be conveniently controlled, and then the spacing between the two groups of clamping components can be adjusted to achieve automatic clamping of mold parts of different sizes. This design greatly reduces the time and workload of manual adjustment of the fixture and improves work efficiency; the detachable design of the clamp and the movable clamp enables the fixture to adapt to mold parts of different shapes and materials. When the mold parts need to be replaced, only the corresponding clamp needs to be disassembled and replaced without replacing the entire fixture, which reduces the cost and improves the utilization rate of the fixture, meeting the needs of modern manufacturing industry for high-precision and high-efficiency production. It has strong practicality and broad market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the bottom of the workbench of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the connection between the movable seat and the rotating arm of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the clamping claw cylinder of the utility model.

[0017] Among them: 1. Workbench; 2. Support foot; 3. Clamping assembly; 301. Movable seat; 302. Claw cylinder; 303. Pad; 304. Movable claw; 305. Clamp; 306. Fixed groove; 307. Flexible chuck; 4. Bearing seat; 5. Rotating shaft; 6. Rotating arm; 7. Connecting rod; 8. Positioning plate; 9. Positioning groove; 10. Positioning bracket; 11. Reducer motor; 12. Worm; 13. Worm wheel; 14. Slider; 15. Linear slide rail; 16. Reamed hole bolt; 17. Movable shaft. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0019] Please refer to Figures 1 to 4 To achieve the above purpose, the utility model provides the following technical solutions:

[0020] A clamp for processing automobile mold parts, comprising a workbench 1, wherein support feet 2 are provided at the four corners of the bottom of the workbench 1, and the support feet 2 ensure that the clamp can be stably placed on the ground during operation, thereby improving the stability of clamping; two groups of symmetrically arranged clamping assemblies 3 are provided at both ends of the workbench 1, wherein the two groups of clamping assemblies 3 have the same structure and are respectively movably connected to the workbench 1, so that the clamping assemblies 3 can slide along the workbench 1 to adapt to mold parts of different sizes; a mounting hole is opened at the middle position above the workbench 1, wherein a bearing seat 4 is provided in the mounting hole; a rotating shaft 5 is provided in the bearing seat 4, wherein a rotating arm 6 is fixedly installed at the top of the rotating shaft 5; the rotating arm 6 is a key component for connecting and driving the two groups of clamping assemblies 3, and connecting rods 7 are provided at both ends of the rotating arm 6, and the connecting rod 7 is movably connected to the clamping assembly 3 Connection; when it is necessary to clamp the mold parts, the rotation of the rotating arm 6 can drive the connecting rod 7 to move, and then drive the two groups of clamping components 3 to move closer to the middle or separate to both sides. This design can quickly adjust the distance between the clamping components 3 to adapt to mold parts of different sizes; a positioning plate 8 is provided between the two groups of clamping components 3, wherein the positioning plate 8 is arranged above the bearing seat 4; a positioning groove 9 is provided at the upper end of the positioning plate 8, wherein the two ends of the positioning plate 8 are fixedly connected to the workbench 1 by positioning brackets 10 respectively; the positioning groove 9 is designed to ensure that the mold parts can be accurately positioned in the fixture when placed, to avoid offset or misalignment during the processing process, wherein the two ends of the positioning plate 8 are fixedly connected to the workbench 1 by positioning brackets 10, to ensure the stability of the positioning plate 8 during the working process.

[0021] See also Figure 2As an embodiment of the utility model, a reduction motor 11 is provided under the workbench 1, wherein the output shaft of the reduction motor 11 is fixedly connected to a worm 12 through a coupling; the lower end of the rotating shaft 5 passes through the bearing seat 4 and is fixedly installed with a worm wheel 13, wherein the worm wheel 13 is meshed with the worm 12 for transmission.

[0022] In the above-mentioned scheme, the reduction motor 11 arranged under the workbench 1 is the core of the entire fixture power system. The reduction motor 11 converts the high-speed and low-torque motor power into a low-speed and high-torque output through its internal gear transmission mechanism to adapt to the larger torque required by the fixture when clamping and loosening mold parts; the output shaft of the reduction motor 11 is tightly connected to the worm 12 through a coupling, wherein the coupling is a mechanical part used to connect two different shafts and make them rotate together to transmit torque, and the coupling ensures a stable connection between the output shaft of the reduction motor 11 and the worm 12, so that power can be transmitted smoothly; the worm 12 is a rod-shaped part with helical teeth, which is used in conjunction with the worm wheel 13 to form a worm. The worm gear transmission mechanism has self-locking property, that is, when the helix angle of the worm 12 is small, the worm 12 can only drive the worm wheel 13 to rotate, while the worm wheel 13 cannot drive the worm 12 to rotate. This feature is particularly important in the clamp that needs stable clamping; the lower end of the rotating shaft 5 passes through the bearing seat 4 and is fixedly installed with a worm wheel 13, and the worm wheel 13 is meshing with the worm 12 for transmission; when the reduction motor 11 is started, the output shaft of the reduction motor 11 drives the worm 12 to rotate, and the worm 12 drives the worm wheel 13 to rotate, thereby driving the rotating shaft 5 and the rotating arm 6 to rotate together, and when the rotating arm 6 rotates under the drive of the worm wheel 13, the connecting rod 7 will move accordingly, thereby pushing or pulling the clamping assembly 3 to open and close.

[0023] When it is necessary to clamp the mold parts, the reduction motor 11 drives the worm 12 to rotate, and the worm 12 drives the worm wheel 13 and the rotating shaft 5 to rotate, thereby moving the rotating arm 6 and the connecting rod 7, and finally making the two groups of clamping components 3 move toward the middle, and the clamping jaw cylinder 302 controls the movable clamping jaw 304 to clamp the mold parts; when it is necessary to loosen the mold parts, the reduction motor 11 rotates in the opposite direction, and the worm and worm gear transmission system makes the rotating arm 6 and the connecting rod 7 move in the opposite direction, and the two groups of clamping components 3 separate to both sides, and the clamping jaw cylinder 302 controls the movable clamping jaw 304 to loosen the mold parts; the reduction motor 11 and the worm and worm gear transmission system are used to realize automatic clamping and loosening of the mold parts, thereby improving the automation degree and processing efficiency of the fixture.

[0024] Please refer to Figure 1 , Figure 4As an embodiment of the utility model, the clamping assembly 3 includes a movable seat 301, wherein a clamping cylinder 302 is provided at the upper end of the movable seat 301; the cylinder body of the clamping cylinder 302 is fixedly connected to the movable seat 301 through a pad 303, wherein a movable clamping jaw 304 of the clamping jaw cylinder 302 is arranged toward the side of the positioning plate 8; a clamping plate 305 is provided on the movable clamping jaw 304, wherein the clamping plate 305 and the movable clamping jaw 304 are detachably connected; the lower end of the clamping plate 305 is connected to the movable clamping jaw 304, wherein a fixing groove 306 is opened at the upper end of the clamping plate 305; a flexible clamping head 307 is provided in the fixing groove 306, wherein the thickness of the flexible clamping head 307 is greater than the depth of the fixing groove 306.

[0025] In the above scheme, the clamping cylinder 302 is the core driving component of the clamping assembly 3, and its cylinder body is fixedly connected to the movable seat 301 through the pad 303 to ensure the stability and rigidity of the clamping cylinder 302 installation; when the clamping cylinder 302 receives the start signal, the clamping cylinder 302 will drive the movable clamping jaw 304 to open and close, and the movable clamping jaw 304 usually includes two clamping jaws arranged opposite to each other, which can be close to or away from each other; the opening and closing action of the movable clamping jaw 304 is transmitted to the mold part through the clamping plate 305, the lower end of the clamping plate 305 is connected to the movable clamping jaw 304, and the upper end of the clamping plate 305 is used to clamp the mold part, wherein the clamping plate 305 and the movable clamping jaw 304 are connected to each other. A detachable connection is adopted between the clamping plates 305. This design allows the clamping plates 305 to be replaced according to different mold parts to meet the clamping requirements of different shapes and sizes. A flexible clamp 307 is provided in the fixing groove 306 opened at the upper end of the clamping plate 305. The flexible clamp 307 is usually made of a soft and elastic material, such as rubber or soft plastic. The thickness of the flexible clamp 307 is greater than the depth of the fixing groove 306, which means that when the movable clamping jaws 304 are closed, the flexible clamp 307 will slightly protrude from the surface of the clamping plate 305 and form a closer contact with the surface of the mold part. This design helps to enhance the clamping force and reduce the movement or vibration of the mold parts during the processing.

[0026] When it is necessary to clamp the mold part, the jaw cylinder 302 drives the movable jaw 304 to close, and the movable jaw 304 drives the clamping plate 305 to move closer to the middle, eventually making the flexible chuck 307 in close contact with the surface of the mold part and generating sufficient clamping force; due to the existence of the flexible chuck 307, the clamping process is smoother and will not damage the surface of the mold part. At the same time, the flexible chuck 307 can also be adaptively adjusted to a certain extent according to the shape of the mold part to ensure the stability and reliability of the clamping; when the mold part needs to be released after the processing is completed, the jaw cylinder 302 drives the movable jaw 304 to open, and the movable jaw 304 drives the clamping plate 305 to separate to both sides, eventually making the flexible chuck 307 separate from the surface of the mold part and releasing the clamping force. During the release process, the elastic deformation of the flexible chuck 307 helps to smoothly release the clamping force and prevent the mold part from being suddenly impacted or damaged.

[0027] See also Figure 3 As an embodiment of the utility model, two symmetrically arranged sliders 14 are installed at the lower end of the movable seat 301, and two linear guide rails 15 adapted to the sliders 14 are provided at one end of the workbench 1 close to the movable seat 301.

[0028] In the above-described scheme, the slider 14 at the lower end of the movable seat 301 cooperates with the linear slide rail 15 provided on the workbench 1, thereby providing stable and precise support for the movement and adjustment of the clamping assembly 3, ensuring that the clamping assembly 3 will not shake or deviate during the movement, thereby ensuring the stability and accuracy of the clamping. This design enables the clamp to adapt to mold parts of different sizes and ensures sufficient stability and accuracy during the clamping process.

[0029] See also Figure 3 As an embodiment of the utility model, one end of the connecting rod 7 is hinged to the top of the rotating arm 6 through a hinged hole bolt 16, and the other end of the connecting rod 7 is hinged to the lower end of the movable seat 301 through a movable shaft 17.

[0030] In the above-described scheme, one end of the connecting rod 7 is hinged to the top of the rotating arm 6 through a hinged hole bolt 16, wherein the hinged hole bolt 16 is a special bolt with a small gap between its hole and the bolt, which can provide a certain degree of rotational freedom while maintaining the stability of the connection. This connection method allows the connecting rod 7 to rotate with the rotation of the rotating arm 6 and transmit the force from the rotating arm 6; the other end of the connecting rod 7 is hinged to the lower end of the movable seat 301 through a movable shaft 17, wherein the movable shaft 17 allows the connecting rod 7 to rotate on the movable seat 301 while maintaining the connection with the movable seat 301. This connection method enables the connecting rod 7 to drive the movable seat 301 to move horizontally; when the reduction motor 11 drives the worm 12 to rotate, the worm 12 drives the worm wheel 13 and the rotating shaft 5 to rotate, thereby rotating the rotating arm 6. Since one end of the connecting rod 7 is hinged to the rotating arm 6 and the other end is hinged to the movable seat 301, the rotational movement of the rotating arm 6 will be transmitted to the movable seat 301 through the connecting rod 7, thereby driving the movable seat 301 to move accordingly; this design enables the clamp to adapt to mold parts of different sizes and shapes, and ensures sufficient stability and accuracy during the clamping process.

[0031] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications fall within the protection scope of the present invention.

Claims

1. A fixture for processing automobile mold parts, comprising a workbench (1), wherein support legs (2) are provided at the four corners of the bottom of the workbench (1); characterized in that: Two groups of symmetrically arranged clamping assemblies (3) are provided at both ends of the workbench (1), wherein the two groups of clamping assemblies (3) have the same structure and are respectively movably connected to the workbench (1); a mounting hole is provided at the middle position above the workbench (1), wherein a bearing seat (4) is provided in the mounting hole; a rotating shaft (5) is provided in the bearing seat (4), wherein a rotating arm (6) is fixedly installed at the top of the rotating shaft (5); connecting rods (7) are respectively provided at both ends of the rotating arm (6), wherein the connecting rods (7) are respectively movably connected to the clamping assemblies (3); a positioning plate (8) is provided between the two groups of clamping assemblies (3), wherein the positioning plate (8) is arranged above the bearing seat (4); a positioning groove (9) is provided at the upper end of the positioning plate (8), wherein the two ends of the positioning plate (8) are respectively fixedly connected to the workbench (1) through positioning brackets (10).

2. The fixture for processing automobile mold parts according to claim 1, characterized in that: A reduction motor (11) is provided below the workbench (1), wherein the output shaft of the reduction motor (11) is fixedly connected to a worm (12) via a coupling; the lower end of the rotating shaft (5) passes through the bearing seat (4) and is fixedly mounted with a worm wheel (13), wherein the worm wheel (13) and the worm wheel (12) are meshed and transmitted.

3. The fixture for processing automobile mold parts according to claim 1, characterized in that: The clamping assembly (3) comprises a movable seat (301), wherein a clamping claw cylinder (302) is provided at the upper end of the movable seat (301); the cylinder body of the clamping claw cylinder (302) is fixedly connected to the movable seat (301) via a backing plate (303), wherein the movable clamping claw (304) of the clamping claw cylinder (302) is arranged toward one side of the positioning plate (8).

4. A fixture for processing automotive mold parts according to claim 3, characterized in that: The movable clamping jaw (304) is provided with a clamping plate (305), wherein the clamping plate (305) and the movable clamping jaw (304) are detachably connected; the lower end of the clamping plate (305) is connected to the movable clamping jaw (304), wherein the upper end of the clamping plate (305) is provided with a fixing groove (306); and a flexible clamp (307) is provided in the fixing groove (306).

5. The fixture for processing automobile mold parts according to claim 3, characterized in that: Two symmetrically arranged sliding blocks (14) are installed at the lower end of the movable seat (301), wherein the end of the workbench (1) close to the movable seat (301) is provided with two linear slide rails (15) adapted to the sliding blocks.

6. The fixture for processing automobile mold parts according to claim 1, characterized in that: One end of the connecting rod (7) is hinged to the top of the rotating arm (6) through a hinged hole bolt (16), and the other end of the connecting rod (7) is hinged to the lower end of the movable seat (301) through a movable shaft (17).

Images