Automobile suspension arm machining clamping positioning jig

Abstract

The utility model provides a kind of automobile suspension arm processing clamping positioning jig, including work tank, the inner wall of work tank is fixedly connected with mounting plate, the upside of mounting plate is provided with driving assembly, the inside of work tank is fixedly connected with two connecting seats, the two sides of connecting seat are hingedly connected with two connecting walls, the opposite end of two groups of connecting wall is hingedly connected with Z-shaped connecting rod, the upside of mounting plate is symmetrically rotatably matched with two connecting rods. Through the clamping positioning structure of linkage adjustment being set, in combination with driving transmission assembly and slidable bottom plate, the position of bottom plate can be accurately adjusted and firmly fixed, the spacing of adjusting clamping mechanism is adjusted, and the suspension arm is reliably clamped by cooperating with special clamping mechanism, the positioning deviation problem is improved, the clamping stability is improved, the processing error is reduced, the processing needs of different specifications of suspension arm are adapted, and the processing quality and efficiency are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, specifically to a clamping and positioning fixture for processing automotive suspension arms. Background Technology

[0002] In the mass production of automotive suspension arms, specialized clamping and positioning fixtures are required to precisely fix the workpieces to ensure the accuracy of milling, drilling, and other machining processes. These fixtures are typically installed on the worktable of machining centers or milling machines. In existing technologies, fixtures are mostly fixed by directly connecting the bottom bolts to the worktable. The positioning pins work in conjunction with the clamping components to limit and clamp the suspension arms, which can meet the machining and positioning requirements of single-specification suspension arms and is widely used in small-batch, single-model production scenarios.

[0003] However, existing fixtures have shortcomings in practical use: on the one hand, the direct fixing method of the bottom bolts requires repeated disassembly and removal of multiple bolts during fixture assembly and disassembly, which is cumbersome and time-consuming, reducing the efficiency of equipment changeover; on the other hand, the clamping components on the fixture are mostly fixed structures, making it difficult to adjust the spacing. When processing suspension arms of different models and specifications, it is impossible to adapt them to the workpieces by adjusting them, and a special fixture must be replaced as a whole. This not only increases the manufacturing cost of the fixture, but also further extends the production preparation time, making it difficult to meet the flexible production needs of suspension arms of multiple models and specifications. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a clamping and positioning fixture for automotive suspension arms to solve the problems mentioned in the background. This invention features a novel structure. By setting up a clamping and positioning structure with linkage adjustment, combined with a drive transmission component and a sliding base plate, the position of the base plate can be precisely adjusted and securely fixed. The spacing of the clamping mechanism can be adjusted, and at the same time, a dedicated clamping mechanism can reliably clamp the suspension arm, improving the positioning deviation problem, enhancing clamping stability, reducing processing errors, adapting to the processing needs of suspension arms of different specifications, and ensuring processing quality and efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a clamping and positioning fixture for processing automotive suspension arms, comprising a work box, an mounting plate fixedly connected to the inner wall of the work box, a drive assembly disposed on the upper side of the mounting plate, two connecting seats symmetrically fixedly connected inside the work box, two connecting walls hinged to both sides of each connecting seat, Z-shaped connecting rods hinged to opposite ends of the two sets of connecting walls, two connecting rods symmetrically rotatably fitted to the upper side of the mounting plate, a fixing plate fixedly connected to the adjacent ends of the two Z-shaped connecting rods, two clamping plates fixedly connected to the upper side of the two fixing plates, multiple strip grooves cooperating with the clamping plates being opened on the upper side of the work box, two base plates disposed on the upper side of the work box, a mounting box fixedly connected to the upper side of the base plates, a mounting shell fixedly connected to the upper side of the mounting box, and a clamping mechanism disposed inside each of the two mounting shells.

[0006] Furthermore, the movable end of the connecting rod is hinged to one side of the connecting wall, and the clamping plate is slidably fitted on the inner wall of the strip groove.

[0007] Furthermore, the drive assembly includes a bidirectional lead screw threaded into the inner walls of the two connecting seats, a motor is mounted on the upper side of the mounting plate, a worm is fixedly connected to the output end of the motor, and a worm wheel is fixedly connected to the center of the bidirectional lead screw, with the worm and worm wheel meshing with each other.

[0008] Furthermore, the clamping mechanism includes a cylinder installed on the lower side of the inner wall of the mounting box. A trapezoidal extrusion block is fixedly connected to the output end of the cylinder. Inclined T-shaped blocks are fixedly connected to both sides of the trapezoidal extrusion block. Two trapezoidal sliders are slidably fitted on the inner wall of the mounting shell. A gripper is installed on the upper side of the trapezoidal slider. An inclined T-shaped groove is opened on the side of the two trapezoidal sliders near the trapezoidal extrusion block. Anti-slip pads are installed on the adjacent sides of the two grippers.

[0009] Furthermore, the inclined T-shaped block is slidably fitted on the inner wall of the inclined T-shaped groove, and the trapezoidal extrusion block is slidably fitted on the inner wall of the mounting shell.

[0010] Furthermore, two dovetail grooves are provided on both sides of the work box, and two dovetail sliders that slide in cooperation with the dovetail grooves are fixedly connected to the lower side of the base plate.

[0011] Furthermore, multiple adjustment slots are evenly provided on both sides of the base plate, and the clamping plate engages with the adjustment slots.

[0012] The beneficial effects of this utility model are:

[0013] 1. This utility model, by setting up a clamping and positioning structure with linkage adjustment, combined with a drive transmission component and a sliding base plate, can accurately adjust the position of the base plate and fix it firmly, adjust the spacing of the clamping mechanism, and at the same time cooperate with a special clamping mechanism to reliably clamp the suspension arm, improve the positioning deviation problem, enhance the clamping stability, reduce processing errors, adapt to the processing needs of suspension arms of different specifications, and ensure processing quality and efficiency.

[0014] 2. This utility model, by setting up a mechanically linked drive component, utilizes the cooperation of a worm gear and a bidirectional lead screw to transmit power, making the movement of each transmission component smoother, avoiding the problems of jamming or uneven power transmission that are prone to occur in traditional transmission, improving the stability during the clamping and adjustment process, further enhancing positioning accuracy, and reducing positioning errors caused by transmission problems. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a clamping and positioning fixture for processing automotive suspension arms according to this utility model;

[0016] Figure 2 This is a schematic diagram of the base plate separation structure of a clamping and positioning fixture for processing automotive suspension arms according to this utility model;

[0017] Figure 3 This is a schematic diagram of the drive assembly structure of a clamping and positioning fixture for processing automotive suspension arms according to this utility model.

[0018] Figure 4 This is a schematic diagram of the mounting plate connection structure of a clamping and positioning fixture for processing automotive suspension arms according to this utility model.

[0019] Figure 5 This is a schematic diagram of the clamping mechanism of a clamping and positioning fixture for processing automotive suspension arms according to this utility model.

[0020] Figure 6 This is a schematic cross-sectional view of the mounting shell structure of a clamping and positioning fixture for processing automotive suspension arms according to this utility model.

[0021] In the diagram: 1. Working box; 2. Mounting plate; 3. Drive assembly; 31. Two-way lead screw; 32. Motor; 33. Worm gear; 34. Worm wheel; 4. Connecting seat; 5. Connecting wall; 6. Z-shaped connecting rod; 7. Connecting rod; 8. Fixing plate; 9. Clamping plate; 10. Strip groove; 11. Base plate; 12. Mounting box; 13. Mounting shell; 14. Clamping mechanism; 141. Cylinder; 142. Trapezoidal extrusion block; 143. Inclined T-shaped block; 144. Trapezoidal slider; 145. Gripper; 146. Inclined T-shaped groove; 147. Anti-slip pad; 15. Dovetail groove; 16. Dovetail slider; 17. Adjusting slot. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please refer to Figures 1 to 6 This utility model provides a technical solution: a clamping and positioning fixture for processing automotive suspension arms, including a work box 1. An mounting plate 2 is fixedly connected to the inner wall of the work box 1. A drive assembly 3 is provided on the upper side of the mounting plate 2. Two connecting seats 4 are symmetrically fixedly connected inside the work box 1. Two connecting walls 5 are hinged to both sides of each connecting seat 4. Z-shaped connecting rods 6 are hinged to opposite ends of the two sets of connecting walls 5. Two connecting rods 7 are symmetrically rotated and fitted on the upper side of the mounting plate 2. A fixing plate 8 is fixedly connected to the adjacent ends of the two Z-shaped connecting rods 6. Two clamping plates 9 are fixedly connected to the upper side of each fixing plate 8. Multiple strip grooves 10 that cooperate with the clamping plates 9 are provided on the upper side of the work box 1. Two base plates 11 are provided on the upper side of the work box 1. A mounting box 12 is fixedly connected to the upper side of the base plate 11. A mounting shell 13 is fixedly connected to the upper side of the mounting box 12. A clamping mechanism 14 is provided inside each of the two mounting shells 13. The movable end of the connecting rod 7 is hinged to one side of the connecting wall 5, and the clamping plate 9 slides on the inner wall of the strip groove 10. Two dovetail grooves 15 are opened on both sides of the work box 1, and two dovetail sliders 16 that slide in the dovetail grooves 15 are fixedly connected to the lower side of the base plate 11. Multiple adjustment slots 17 are evenly opened on both sides of the base plate 11, and the clamping plate 9 is engaged with the adjustment slots 17. When the drive assembly 3 operates, the motor 32 drives the worm gear 33 to rotate, which drives the bidirectional lead screw 31 to rotate through the worm wheel 34, so that the connecting walls 5 on both sides of the connecting seat 4 can move. Through the linkage of the Z-shaped connecting rod 6 and the connecting rod 7, the clamping plate 9 on the fixed plate 8 slides along the strip groove 10. The clamping plate 9 is engaged with the adjustment slots 17 of the base plate 11. At the same time, the base plate 11 slides along the dovetail grooves 15 of the work box 1 through the dovetail sliders 16, realizing the adjustment and fixation of the position of the base plate 11, thereby adjusting the distance between the two clamping mechanisms 14 and providing stable bottom support positioning for the processing of the cantilever arm.

[0024] In this embodiment, the drive assembly 3 includes a bidirectional lead screw 31 threaded into the inner walls of the two connecting seats 4. A motor 32 is mounted on the upper side of the mounting plate 2. A worm gear 33 is fixedly connected to the output end of the motor 32. A worm wheel 34 is fixedly connected to the center of the bidirectional lead screw 31, and the worm gear 33 and the worm wheel 34 mesh with each other. In the drive assembly 3, the power output by the motor 32 is transmitted to the bidirectional lead screw 31 via the worm gear 33 and the worm wheel 34. By utilizing the threaded engagement between the bidirectional lead screw 31 and the connecting seat 4, the rotational motion is converted into the opening and closing motion of the connecting wall 5. With the auxiliary support of the connecting rod 7, it is ensured that the connecting wall 5 drives the Z-shaped connecting rod 6 to move smoothly, so that the clamping plate 9 slides accurately, improving the stability and accuracy of clamping and positioning, and laying the foundation for the subsequent operation of the clamping mechanism 14.

[0025] In this embodiment, the clamping mechanism 14 includes a cylinder 141 installed on the lower side of the inner wall of the mounting box 12. A trapezoidal extrusion block 142 is fixedly connected to the output end of the cylinder 141. Inclined T-shaped blocks 143 are fixedly connected to both sides of the trapezoidal extrusion block 142. Two trapezoidal sliders 144 are slidably fitted on the inner wall of the mounting shell 13. A gripper 145 is installed on the upper side of the trapezoidal slider 144. An inclined T-shaped groove 146 is opened on the side of the two trapezoidal sliders 144 near the trapezoidal extrusion block 142. An anti-slip pad 147 is installed on the side of the two grippers 145 that are close to each other. The inclined T-shaped blocks 143 are slidably fitted on the inner wall of the inclined T-shaped grooves 146, and the trapezoidal extrusion blocks 142 are slidably fitted on the inner wall of the mounting shell 13. When the clamping mechanism 14 is working, the cylinder 141 in the mounting box 12 pushes the trapezoidal extrusion block 142 to slide in the mounting shell 13. The inclined T-shaped blocks 143 on both sides slide along the inclined T-shaped groove 146 of the trapezoidal slider 144, causing the two trapezoidal sliders 144 to move closer to each other, so that the gripper 145 clamps the car suspension arm. The anti-slip pad 147 increases the friction and prevents the suspension arm from sliding, thus achieving a stable clamping of the suspension arm and ensuring the reliability of the processing.

[0026] When using the device, the motor 32 drives the bidirectional lead screw 31 to rotate, which is transmitted through the connecting wall 5, Z-shaped connecting rod 6, etc., so that the clamping plate 9 slides along the strip groove 10. In conjunction with the dovetail groove 15 and the adjusting slot 17, the position of the base plate 11 is adjusted and fixed. Then, the cylinder 141 in the mounting box 12 pushes the trapezoidal extrusion block 142. Through the cooperation of the inclined T-shaped block 143 and the groove, the trapezoidal slider 144 moves, so that the gripper 145 on the mounting shell 13 clamps the suspension arm. The whole process achieves precise positioning and stable clamping of the suspension arm through mechanical linkage and pneumatic coordination, which meets the processing requirements.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A clamping and positioning fixture for machining automotive suspension arms, comprising a work box (1), characterized in that: The inner wall of the work box (1) is fixedly connected to a mounting plate (2). A drive assembly (3) is provided on the upper side of the mounting plate (2). Two connecting seats (4) are symmetrically fixedly connected inside the work box (1). Two connecting walls (5) are hinged to both sides of the connecting seats (4). Z-shaped connecting rods (6) are hinged to opposite ends of the two sets of connecting walls (5). Two connecting rods (7) are symmetrically rotated and fitted on the upper side of the mounting plate (2). The adjacent ends of the two Z-shaped connecting rods (6) are fixed. The work box (1) is connected to a fixed plate (8), and two clamping plates (9) are fixedly connected to the upper side of each of the two fixed plates (8). Multiple strip grooves (10) that cooperate with the clamping plates (9) are opened on the upper side of the work box (1). Two base plates (11) are provided on the upper side of the work box (1). An installation box (12) is fixedly connected to the upper side of the base plate (11). An installation shell (13) is fixedly connected to the upper side of the installation box (12). A clamping mechanism (14) is provided inside each of the two installation shells (13).

2. The automotive suspension arm machining clamping and positioning fixture according to claim 1, characterized in that: The movable end of the connecting rod (7) is hinged to one side of the connecting wall (5), and the clamping plate (9) is slidably fitted on the inner wall of the strip groove (10).

3. The automotive suspension arm machining clamping and positioning fixture according to claim 1, characterized in that: The drive assembly (3) includes a bidirectional lead screw (31) threaded into the inner wall of two connecting seats (4), a motor (32) is mounted on the upper side of the mounting plate (2), a worm (33) is fixedly connected to the output end of the motor (32), and a worm wheel (34) is fixedly connected to the center of the bidirectional lead screw (31), and the worm (33) and the worm wheel (34) mesh with each other.

4. The automotive suspension arm machining clamping and positioning fixture according to claim 1, characterized in that: The clamping mechanism (14) includes a cylinder (141) installed on the lower side of the inner wall of the mounting box (12). The output end of the cylinder (141) is fixedly connected to a trapezoidal extrusion block (142). Inclined T-shaped blocks (143) are fixedly connected to both sides of the trapezoidal extrusion block (142). The inner wall of the mounting shell (13) has two trapezoidal sliders (144) that slide together. A gripper (145) is installed on the upper side of the trapezoidal slider (144). An inclined T-shaped groove (146) is opened on the side of the two trapezoidal sliders (144) that is close to the trapezoidal extrusion block (142). An anti-slip pad (147) is installed on the side of the two grippers (145) that is close to each other.

5. The automotive suspension arm machining clamping and positioning fixture according to claim 4, characterized in that: The inclined T-shaped block (143) is slidably fitted on the inner wall of the inclined T-shaped groove (146), and the trapezoidal extrusion block (142) is slidably fitted on the inner wall of the mounting shell (13).

6. The automotive suspension arm machining clamping and positioning fixture according to claim 1, characterized in that: Two dovetail grooves (15) are provided on both sides of the work box (1), and two dovetail sliders (16) that slide in cooperation with the dovetail grooves (15) are fixedly connected to the lower side of the base plate (11).

7. The automotive suspension arm machining clamping and positioning fixture according to claim 1, characterized in that: Multiple adjustment slots (17) are evenly provided on both sides of the base plate (11), and the clamping plate (9) is engaged with the adjustment slots (17).

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