New energy automobile damping spring welding positioning device

Abstract

The utility model relates to the technical field of new energy automobile part machining, in particular to a new energy automobile damping spring welding positioning device which comprises a cover plate, a base and a clamping assembly, the base is installed on the lower surface of the cover plate, a damping plate is installed on the inner wall of the base, a guide hole is formed in the upper surface of the cover plate, and the clamping assembly is installed in the guide hole. The clamping assembly is arranged on the surface of the cover plate; and the clamping assembly comprises a driving unit, the driving unit comprises a servo motor, the servo motor is fixedly connected with the upper surface of the damping plate, the driving end of the servo motor is in bolted connection with a lead screw, the surface of the lead screw is in threaded connection with a linkage plate, and the upper surface of the linkage plate is fixedly connected with a U-shaped block. According to the positioning device, the clamping assembly is arranged, so that the contact area between the device and the workpiece to be machined is increased, the problem that the limitation of the device on the workpiece to be machined is poor due to the fact that the contact area is small is solved, and the limiting effect of the positioning device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicle parts processing, in particular to a new energy vehicle shock-absorbing spring welding positioning device. Background Art

[0002] Automobile shock absorber springs are key components of the automobile suspension system. They are generally made of high-strength spring steel and are available in linear and progressive types. When working, when the vehicle is traveling on uneven roads, they absorb and store energy from the wheels through their own compression or extension, thereby cushioning bumps and reducing body vibrations. It can not only significantly improve ride comfort and protect passengers from excessive vibration interference during driving, but also enhance driving stability, ensure good contact between the wheels and the road and tire grip, especially improve handling performance when driving at high speeds and making sharp turns, while supporting the weight of the vehicle body and working with the shock absorbers to maintain the normal height and posture of the vehicle.

[0003] Existing technologies include the utility model with publication number CN221389578U, which discloses a welding positioning device for a shock absorber spring of a new energy vehicle. The patent adopts a positioning platform and a placement cylinder. Three groups of movable grooves are opened on the outer side of the placement cylinder and at the upper end of the positioning platform. The three groups of movable grooves are movably connected to the inner sides of the three groups of movable grooves. The outer surface of the placement cylinder is fixed with an ear plate corresponding to the movable groove. One end of the connecting rod is hinged to the ear plate through a connecting block. The upper end of each connecting block is fixedly connected with a clamping block. The upper end of the positioning platform is fixed with a fixed block on one side of the placement cylinder. Both sides of the upper end of the fixed block are connected to a clamping plate by a driving device. The utility model clamps and fixes the bottom end of the shock absorber spring by approaching the clamping block toward the outer side of the shock absorber spring, and then clamps and fixes the middle end of the shock absorber spring by driving the clamping plate through the driving device. Under the action of double clamping, the shock absorber spring is more stable, thereby facilitating welding, solving the problem that the shock absorber spring of the new energy vehicle is difficult to fix during welding due to its special position. Therefore, the existing needs are not met.

[0004] In the process of fixing the automobile shock absorber spring with the help of a positioning device, there is an existing welding positioning device such as the above-mentioned one, in which the contact between the clamping structure and the spring relies only on a clamping block and a limit rod, and the clamping blocks are all installed on the same horizontal plane. Since the shock absorber spring itself has a spiral ascending structure, when the clamping blocks are all at the same level, the contact area between the clamping blocks at different positions and the shock absorber spring is limited, which leads to the problem of poor clamping effect of the device on the shock absorber spring. Utility Model Content

[0005] The purpose of the present utility model is to solve the defect that in the prior art, the structure of the shock-absorbing spring itself is in a spiral rising shape. When the clamping blocks are all at the same level, the contact area between the clamping blocks at different positions and the shock-absorbing spring is limited, resulting in a poor clamping effect of the device on the shock-absorbing spring, and to propose a welding positioning device for the shock-absorbing spring of a new energy vehicle.

[0006] To achieve the above purpose, the present utility model adopts the following technical solutions: A welding positioning device for the shock-absorbing spring of a new energy vehicle, including a cover plate, a base and a clamping assembly. The base is installed on the lower surface of the cover plate. A damping plate is installed on the inner wall of the base. A guiding hole is opened on the upper surface of the cover plate. The clamping assembly is arranged on the surface of the cover plate;

[0007] The clamping assembly includes a driving unit. The driving unit includes a servo motor. The servo motor is fixedly connected to the upper surface of the damping plate. A lead screw is bolted to the driving end of the servo motor. A linkage plate is threadedly connected to the surface of the lead screw. A U-shaped block is fixedly connected to the upper surface of the linkage plate. A rotating hole is opened on the surface of the U-shaped block. A connecting arm is rotatably connected to the inner wall of the U-shaped block at the rotating hole. One end of the connecting arm away from the U-shaped block is rotatably connected to a positioning frame. A through hole is opened on the surface of the cover plate. A limiting ring is fixedly connected to the inner wall of the cover plate at the through hole. The side of the lead screw away from the servo motor is rotatably connected to the inner wall of the limiting ring;

[0008] The clamping assembly further includes a locking unit. The locking unit includes an L-shaped guide rail. The L-shaped guide rail is fixedly connected to the lower surface of the cover plate. Sealing plates are fixedly connected to both sides of the L-shaped guide rail. A slider is slidably connected to the inner wall of the L-shaped guide rail. A first clamping plate is fixedly connected to the upper surface of the slider. A receiving cavity is opened on the side surface of the first clamping plate. A second clamping plate is slidably connected to the inner wall of the receiving cavity of the first clamping plate. A guiding convex block is fixedly connected to the side surface of the second clamping plate. The guiding convex block is slidably connected to the inner wall of the guiding groove. A fastening bolt is threadedly connected to the inner wall of the receiving cavity of the first clamping plate. A guiding hole is opened on the surface of the second clamping plate. The fastening bolt is slidably connected to the inner wall of the guiding hole. The fastening bolt is in contact with the side surface of the second clamping plate.

[0009] Preferably, the number of the connecting arms is three. The three connecting arms are arranged in a circumferential array with respect to the lead screw. The connecting arms can connect the U-shaped block and the positioning frame, so that a linkage effect can be generated between the U-shaped block and the positioning frame.

[0010] Preferably, the lower end of the positioning frame is arc-shaped. The number of the positioning frames is three. The three positioning frames are arranged in a circumferential array with respect to the lead screw. The lead screw can be meshed with the linkage plate under the drive of the servo motor, so as to drive the linkage plate to move in the up and down directions.

[0011] Preferably, the slider is cross-shaped and is slidably connected to the inner wall of the guide hole. The positioning frame and the first clamping plate can be connected through the slider, so that the positioning frame can drive the first clamping plate to move.

[0012] Preferably, the number of the first clamping plates is three, and the three first clamping plates are arranged in a circumferential array with respect to the limiting ring. The outer side of the first clamping plate is arc-shaped. During the movement, the first clamping plate can clamp the shock-absorbing spring from the inside of the shock-absorbing spring.

[0013] Preferably, the outer side of the second clamping plate is arc-shaped, and the number of the guiding bumps is two. The two guiding bumps are symmetrically arranged left and right with respect to the second clamping plate. The second clamping plate can extend the height of the first clamping plate, so that the device can be applicable to springs of different specifications.

[0014] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0015] In the present utility model, by providing a clamping assembly, during processing, the spring to be welded is placed in the clamping area of the clamping assembly. When the lower end of the spring contacts the upper surface of the cover plate, the switch of the servo motor is turned on. The servo motor is powered on and operates under the power supply of an external power source. The servo motor drives the lead screw. The lead screw meshes with the linkage plate, the linkage plate pushes the U-shaped block, the U-shaped block pushes the connecting arm, the connecting arm cooperates with the positioning frame to push the slider, and the slider, under the guidance of the L-shaped guide rail and the guide hole, pushes the first clamping plate and the second clamping plate. During the movement of the first clamping plate and the second clamping plate, the spring is clamped from the inside of the spring. After clamping the spring, just turn off the switch of the servo motor. When the height of the spring is higher than that of the first clamping plate, rotate the fastening bolt counterclockwise. After the fastening bolt is loosened, pull up the second clamping plate. The second clamping plate gradually rises under the guidance of the guiding bump and the receiving cavity. When the second clamping plate moves to a height suitable for the spring specification, rotate the fastening bolt clockwise, and the fastening bolt locks the second clamping plate again, and then the adjustment operation of the locking unit is completed. By providing the clamping assembly, the contact area between the device and the workpiece to be processed is increased, thereby reducing the problem that the contact area is small and the limitation of the device on the workpiece to be processed is poor, and further improving the limiting effect of the positioning device. Description of the Drawings

[0016] Figure 1 is a three-dimensional structural schematic diagram of a welding positioning device for a shock-absorbing spring of a new energy vehicle proposed by the present utility model;

[0017] Figure 2 is a welding positioning device for a shock-absorbing spring of a new energy vehicle proposed by the present utility model Figure 1 structural schematic diagram of part A therein;

[0018] Figure 3This is a schematic cross-sectional view of a welding positioning device for a shock absorber spring of a new energy vehicle proposed by the present utility model;

[0019] Figure 4 This is a schematic structural view of a clamping assembly of a welding positioning device for a shock absorber spring of a new energy vehicle proposed by the present utility model;

[0020] Figure 5 This is a [welding positioning device for a shock absorber spring of a new energy vehicle proposed by the present utility model] Figure 4 Schematic structural view of part B in it.

[0021] Legend:

[0022] 1. Cover plate; 2. Base; 3. Damping plate; 4. Guide hole; 5. Clamping assembly; 51. Driving unit; 511. Servo motor; 512. Lead screw; 513. Linking plate; 514. U-shaped block; 515. Connecting arm; 516. Positioning frame; 517. Limit ring; 52. Locking unit; 521. L-shaped guide rail; 522. Sealing plate; 523. Slide block; 524. First clamping plate; 525. Second clamping plate; 526. Guide convex block; 527. Tightening bolt. Specific implementation mode

[0023] Please refer to Figures 1-5 , the present utility model provides a technical solution: a welding positioning device for a shock absorber spring of a new energy vehicle, including a cover plate 1, a base 2 and a clamping assembly 5. The base 2 is installed on the lower surface of the cover plate 1. A damping plate 3 is installed on the inner wall of the base 2. A guide hole 4 is opened on the upper surface of the cover plate 1. The clamping assembly 5 is arranged on the surface of the cover plate 1.

[0024] In this implementation: The clamping assembly 5 includes a driving unit 51. The driving unit 51 includes a servo motor 511. The servo motor 511 is fixedly connected to the upper surface of the damping plate 3. A lead screw 512 is bolted to the driving end of the servo motor 511. A linking plate 513 is threadedly connected to the surface of the lead screw 512. A U-shaped block 514 is fixedly connected to the upper surface of the linking plate 513. A rotating hole is opened on the surface of the U-shaped block 514. A connecting arm 515 is rotatably connected to the inner wall of the U-shaped block 514 at the rotating hole. One end of the connecting arm 515 away from the U-shaped block 514 is rotatably connected to a positioning frame 516. A through hole is opened on the surface of the cover plate 1. A limit ring 517 is fixedly connected to the inner wall of the cover plate 1 at the through hole. One side of the lead screw 512 away from the servo motor 511 is rotatably connected to the inner wall of the limit ring 517;

[0025] Note: There seems to be an incomplete or incorrect description in the original text at line . I've translated it as best as possible based on the context, but it might need further clarification in the original.The clamping assembly 5 further includes a locking unit 52. The locking unit 52 includes an L-shaped guide rail 521 which is fixedly connected to the lower surface of the cover plate 1. Sealing plates 522 are fixedly connected to both sides of the L-shaped guide rail 521. A slider 523 is slidably connected to the inner wall of the L-shaped guide rail 521. A first clamping plate 524 is fixedly connected to the upper surface of the slider 523. A storage cavity is formed on the side surface of the first clamping plate 524. A second clamping plate 525 is slidably connected to the inner wall of the storage cavity of the first clamping plate 524. A guiding convex block 526 is fixedly connected to the side surface of the second clamping plate 525. The guiding convex block 526 is slidably connected to the inner wall of the guiding groove. A fastening bolt 527 is threadedly connected to the inner wall of the storage cavity of the first clamping plate 524. A guiding hole is formed on the surface of the second clamping plate 525. The fastening bolt 527 is slidably connected to the inner wall of the guiding hole and is in contact with the side surface of the second clamping plate 525.

[0026] Specifically, the number of connecting arms 515 is three. The three connecting arms 515 are arranged in a circumferential array with respect to the lead screw 512. The U-shaped block 514 and the positioning frame 516 can be connected through the connecting arms 515, so that a linkage effect can be generated between the U-shaped block 514 and the positioning frame 516.

[0027] Specifically, the lower end of the positioning frame 516 is arc-shaped. The number of positioning frames 516 is three. The three positioning frames 516 are arranged in a circumferential array with respect to the lead screw 512.

[0028] In this embodiment: The lead screw 512 can be meshed with the linkage plate 513 under the drive of the servo motor 511, so as to drive the linkage plate 513 to move in the up and down directions.

[0029] Specifically, the slider 523 is cross-shaped. The slider 523 is slidably connected to the inner wall of the guiding hole 4. The positioning frame 516 and the first clamping plate 524 can be connected through the slider 523, so that the positioning frame 516 can drive the first clamping plate 524 to move.

[0030] In this embodiment: The number of the first clamping plates 524 is three. The three first clamping plates 524 are arranged in a circumferential array with respect to the limiting ring 517. The outer side of the first clamping plate 524 is arc-shaped.

[0031] In this embodiment: During the movement of the first clamping plate 524, the damping spring can be clamped from the inside of the damping spring.

[0032] Specifically, the outer side of the second clamping plate 525 is arc-shaped. The number of guiding convex blocks 526 is two. The two guiding convex blocks 526 are symmetrically arranged about the second clamping plate 525. The height of the first clamping plate 524 can be extended through the second clamping plate 525, so that the device can be applicable to springs of different specifications.

[0033] Working principle: When processing, place the spring to be welded in the clamping area of the clamping assembly 5. When the lower end of the spring contacts the upper surface of the cover plate 1, turn on the switch of the servo motor 511. The servo motor 511 is powered on and operates under the power supply of an external power source. The servo motor 511 drives the lead screw 512. The lead screw 512 meshes with the linkage plate 513. The linkage plate 513 pushes the U-shaped block 514. The U-shaped block 514 pushes the connecting arm 515. The connecting arm 515 cooperates with the positioning frame 516 to push the slider 523. The slider 523 is guided by the L-shaped guide rail 521 and the guide hole 4 to push the first clamping plate 524 and the second clamping plate 525. During the movement of the first clamping plate 524 and the second clamping plate 525, the spring is clamped from the inside of the spring. After clamping the spring, just turn off the switch of the servo motor 511. When the height of the spring is higher than that of the first clamping plate 524, rotate the fastening bolt 527 counterclockwise. After the fastening bolt 527 is loosened, pull up the second clamping plate 525. The second clamping plate 525 gradually rises under the guidance of the guiding protrusion 526 and the receiving cavity. When the second clamping plate 525 moves to a height suitable for the spring specification, rotate the fastening bolt 527 clockwise. The fastening bolt 527 locks the second clamping plate 525 again, and then the adjustment operation of the locking unit 52 is completed. By setting the clamping assembly 5, the contact area between the device and the workpiece to be processed is increased, thereby reducing the problem that the contact area is small and the limitation of the device on the workpiece to be processed is poor, and further improving the limiting effect of the positioning device.

Claims

1. A welding positioning device for a shock absorber spring of a new energy vehicle, comprising a cover plate (1), a base (2) and a clamping assembly (5), characterized in that: The base (2) is installed on the lower surface of the cover plate (1). A damping plate (3) is installed on the inner wall of the base (2). A guiding hole (4) is formed on the upper surface of the cover plate (1). The clamping assembly (5) is arranged on the surface of the cover plate (1). The clamping assembly (5) includes a driving unit (51). The driving unit (51) includes a servo motor (511). The servo motor (511) is fixedly connected to the upper surface of the damping plate (3). A lead screw (512) is bolted to the driving end of the servo motor (511). A linkage plate (513) is threadedly connected to the surface of the lead screw (512). A U-shaped block (514) is fixedly connected to the upper surface of the linkage plate (513). A rotating hole is formed on the surface of the U-shaped block (514). A connecting arm (515) is rotatably connected to the inner wall of the U-shaped block (514) at the rotating hole. One end of the connecting arm (515) away from the U-shaped block (514) is rotatably connected to a positioning frame (516). A through hole is formed on the surface of the cover plate (1). A limiting ring (517) is fixedly connected to the inner wall of the cover plate (1) at the through hole. One side of the lead screw (512) away from the servo motor (511) is rotatably connected to the inner wall of the limiting ring (517). The clamping assembly (5) further includes a locking unit (52). The locking unit (52) includes an L-shaped guide rail (521). The L-shaped guide rail (521) is fixedly connected to the lower surface of the cover plate (1). Sealing plates (522) are fixedly connected to both sides of the L-shaped guide rail (521). A slider (523) is slidably connected to the inner wall of the L-shaped guide rail (521). A first clamping plate (524) is fixedly connected to the upper surface of the slider (523). A storage cavity is formed on the side surface of the first clamping plate (524). A second clamping plate (525) is slidably connected to the inner wall of the first clamping plate (524) at the storage cavity. A guiding convex block (526) is fixedly connected to the side surface of the second clamping plate (525). The guiding convex block (526) is slidably connected to the inner wall of a guiding groove. A fastening bolt (527) is threadedly connected to the inner wall of the first clamping plate (524) at the storage cavity. A guiding hole is formed on the surface of the second clamping plate (525). The fastening bolt (527) is slidably connected to the inner wall of the guiding hole. The fastening bolt (527) is in contact with the side surface of the second clamping plate (525).

2. The welding positioning device for the shock absorber spring of a new energy vehicle according to claim 1, wherein: The number of the connecting arms (515) is three. The three connecting arms (515) are arranged in a circular array with respect to the lead screw (512).

3. The welding positioning device for the shock absorber spring of a new energy vehicle according to claim 1, wherein: The lower end of the positioning frame (516) is arc-shaped. The number of the positioning frames (516) is three. The three positioning frames (516) are arranged in a circular array with respect to the lead screw (512).

4. A welding positioning device for a shock absorber spring of a new energy vehicle according to claim 1, characterized in that: The slider (523) is cross-shaped. The slider (523) is slidably connected to the inner wall of the guiding hole (4).

5. A welding positioning device for a shock absorber spring of a new energy vehicle according to claim 1, characterized in that: The number of the first clamping plates (524) is three. The three first clamping plates (524) are arranged in a circular array with respect to the limiting ring (517). The outer side of the first clamping plate (524) is arc-shaped.

6. The welding positioning device for the shock absorber spring of a new energy vehicle according to claim 1, wherein: The outer side of the second clamping plate (525) is arc-shaped, and the number of the guiding bumps (526) is two, and the two guiding bumps (526) are symmetrically arranged about the second clamping plate (525) left and right.

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