Electrophoretic coating fixture for a steel plate spring

Abstract

The utility model relates to the technical field of clamp, and disclose a kind of steel plate spring electrophoretic coating clamp, including hoisting plate, the bottom of hoisting plate is connected with adjusting assembly, the bottom of adjusting assembly is connected with two symmetrical clamping components of setting, clamping component includes L-shaped clamping lever and vertical clamping lever, L-shaped clamping lever and vertical clamping lever mutually splice and form U-shaped structure, and one end of steel plate spring is clamped in inside.The kind of steel plate spring electrophoretic coating clamp, through two groups of L-shaped clamping lever and vertical clamping lever mutual cooperation, can the both ends of steel plate spring be stably clamped and fixed, and the L-shaped clamping lever and vertical clamping lever of round bar structure, by arc surface and steel plate spring surface contact, greatly reduce contact area, effectively reduce the blank area of coating caused by clamp in electrophoretic coating process, improve the overall electrophoretic coating effect.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, specifically a steel plate spring electrophoretic coating fixture. Background Technology

[0002] Leaf springs are key elastic components in automotive suspension systems, composed of multiple alloy spring leaves of unequal length stacked together. They are widely used in the suspension systems of commercial vehicles and passenger cars. In the production process, electrophoretic coating is a core process for improving their corrosion resistance. Specifically, a lifting device is typically used to immerse the leaf springs, fixed to a clamp, into an electrophoretic coating solution to complete the coating process.

[0003] The patent with publication number CN215517691U discloses a steel plate spring electrophoretic coating fixture, including a cylinder body. A lifting ring is fixed on the upper surface of the cylinder body, and a fixing block is fastened to the lower surface of the cylinder body by a nut. Protrusions are provided on the left and right sides of the fixing block, and the protrusions are connected to a gripping arm. The middle part of the gripping arm is connected to a movable block. The cylinder extension rod at the output end of the cylinder body passes through the middle of the fixing block, and an adjustment block is connected to the tail end surface. Both ends of the adjustment block are connected to the movable block. A U-shaped groove is provided at the tail end of the gripping arm, and the U-shaped groove is connected to a gripping bracket. The gripping bracket is connected to a clamping block. The fixture is simple and convenient to operate and has high work efficiency.

[0004] However, the fixtures in the above-mentioned technology still have the following problems: when the clamping block clamps the outer side of the leaf spring, it will form a large contact area with the spring surface, which will prevent the area from contacting the electrophoretic liquid, resulting in significant blank defects in the electrophoretic coating and seriously affecting the electrophoretic coating quality of the leaf spring. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a steel leaf spring electrophoretic coating fixture to improve the electrophoretic coating effect of steel leaf springs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a steel leaf spring electrophoretic coating fixture, including a lifting plate, an adjustment assembly connected to the bottom of the lifting plate, and two symmetrically arranged clamping assemblies connected to the bottom of the adjustment assembly. The clamping assemblies include an L-shaped clamping rod and a vertical clamping rod. The L-shaped clamping rod and the vertical clamping rod are spliced ​​together to form a U-shaped structure, clamping one end of the steel leaf spring on the inner side.

[0007] Furthermore, the adjustment assembly includes a dual-axis motor, two adjusting screws, and two internal threaded blocks. The dual-axis motor is fixedly installed at the middle position of the bottom of the lifting plate via a motor mount. The two adjusting screws are fixedly connected to the output shafts at both ends of the dual-axis motor. The two internal threaded blocks are respectively fitted with the two adjusting screws, and the two internal threaded blocks are threadedly connected to the two adjusting screws. The side of the two internal threaded blocks away from the lifting plate is respectively connected to two clamping assemblies.

[0008] Furthermore, support blocks are fixedly connected to both ends of the bottom of the lifting plate, and the ends of the two adjusting screws away from the dual-axis motor are rotatably connected to the two support blocks respectively.

[0009] Furthermore, the top of the internal threaded block is slidably connected to the bottom of the lifting plate.

[0010] Furthermore, a crossbar is fixedly connected to the side of the internal thread block away from the lifting plate, and the L-shaped clamp and the vertical clamp are respectively connected to the two ends of the bottom of the crossbar.

[0011] Furthermore, the L-shaped clamp is rotatably connected to one end of the bottom of the crossbar, and the vertical clamp is fixedly connected to the other end of the bottom of the crossbar.

[0012] Furthermore, a rotary motor is fixedly connected to the top of the crossbar near the L-shaped clamp. The output shaft of the rotary motor passes downward through the crossbar and is fixedly connected to the end of the L-shaped clamp.

[0013] Furthermore, a U-shaped frame is fixedly connected to the end of the vertical clamp rod away from the horizontal bar. The U-shaped frame is horizontally positioned at the bottom of the vertical clamp rod, and the end of the L-shaped clamp rod near the vertical clamp rod is slidably connected to the inner wall of the U-shaped frame.

[0014] Furthermore, the opening of the U-shaped frame faces another clamping component.

[0015] Furthermore, lifting rings are fixedly connected to both ends of the top of the lifting plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This type of electrophoretic coating fixture for leaf springs uses two sets of L-shaped clamps and vertical clamps to stably clamp and fix both ends of the leaf spring. The L-shaped clamps and vertical clamps, with their round rod structures, contact the leaf spring surface through their arc surfaces, significantly reducing the contact area and effectively minimizing the blank areas caused by the fixture during the electrophoretic coating process, thus improving the overall electrophoretic coating effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall connection structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure of this utility model from another angle;

[0020] Figure 3 This is a schematic diagram of the connection structure of the clamping component of this utility model.

[0021] In the diagram: 1. Lifting plate; 2. Adjustment assembly; 3. Clamping assembly; 4. Crossbar; 5. Rotary motor; 6. U-shaped frame; 7. Lifting ring; 11. Support block; 21. Dual-axis motor; 22. Adjusting screw; 23. Internal threaded block; 31. L-shaped clamp; 32. Vertical clamp. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figures 1 to 3 A steel leaf spring electrophoretic coating fixture includes a lifting plate 1. The bottom of the lifting plate 1 is connected to an adjustment component 2. The bottom of the adjustment component 2 is connected to two symmetrically arranged clamping components 3. The clamping components 3 include an L-shaped clamping rod 31 and a vertical clamping rod 32. The L-shaped clamping rod 31 and the vertical clamping rod 32 are spliced ​​together to form a U-shaped structure, clamping one end of the steel leaf spring on the inside.

[0024] like Figures 1 to 3 As shown, the main improvement of this utility model lies in improving the electrophoretic coating effect of steel leaf springs, such as... Figures 1 to 3 As shown, in use, the steel leaf spring electrophoretic coating fixture of this utility model uses a hoisting device to lift the hoisting plate 1, and then places both ends of the steel leaf spring inside the U-shaped structure formed by two sets of L-shaped clamping rods 31 and vertical clamping rods 32. The two sets of L-shaped clamping rods 31 and vertical clamping rods 32 clamp the two ends of the steel leaf spring in the middle and lift it up. The L-shaped clamping rods 31 and vertical clamping rods 32 are all made of cylinders or round tubes, so that the steel leaf spring is always in contact with the arc-shaped surfaces of the L-shaped clamping rods 31 and vertical clamping rods 32, thereby greatly reducing the contact area between the clamping components 3 and the steel leaf spring, effectively reducing the coating blank area caused by the fixture during the electrophoretic coating process, and thus improving the overall electrophoretic coating effect of the steel leaf spring. The adjusting component 2 can adjust the distance between the two clamping components 3 according to the size and length of the steel leaf spring, thereby improving the applicability of the fixture.

[0025] like Figures 1 to 3As shown, the adjustment assembly 2 includes a dual-axis motor 21, two adjusting screws 22, and two internal threaded blocks 23. The dual-axis motor 21 is fixedly installed at the middle position of the bottom of the lifting plate 1 through a motor base. The two adjusting screws 22 are fixedly connected to the output shafts at both ends of the dual-axis motor 21, and the two internal threaded blocks 23 are respectively sleeved on the two adjusting screws 22, and the two internal threaded blocks 23 are respectively threadedly connected to the two adjusting screws 22. The side of the two internal threaded blocks 23 away from the lifting plate 1 is respectively connected to two clamping assemblies 3. By activating the dual-axis motor 21, the two adjusting screws 22 are synchronously rotated. Subsequently, through threaded transmission, the two internal threaded blocks 23 are axially displaced at both ends of the dual-axis motor 21, thereby achieving synchronous adjustment of the two sets of clamping components 3. It should be noted that the two ends of the dual-axis motor 21 have the same speed and torque, and rotate on the same axis (such as the dual-axis DC geared motor JGA25-370). At the same time, the two adjusting screws 22 and the two internal threaded blocks 23 are symmetrically arranged, thereby ensuring that the adjustment of the two sets of clamping components 3 is more stable and reliable. The dual-axis motor 21 can also be a locking motor, which locks the adjusting screws 22 after completing the axial displacement of the two internal threaded blocks 23 to prevent the adjusting screws 22 from rotating, thus improving stability.

[0026] like Figures 1 to 3 As shown, support blocks 11 are fixedly connected to both ends of the bottom of the lifting plate 1. The ends of the two adjusting screws 22 away from the dual-axis motor 21 are rotatably connected to the two support blocks 11 respectively. The ends of the two adjusting screws 22 are suspended below the lifting plate 1 by the two support blocks 11. The support blocks 11 can reinforce and support the adjusting screws 22, thereby preventing the adjusting screws 22 from bending under the load during the clamping and lifting of the steel leaf spring, and improving the stability of the adjusting screws 22.

[0027] like Figures 1 to 3 As shown, the top of the internal threaded block 23 is slidably connected to the bottom of the lifting plate 1. When the adjusting screw 22 rotates and drives the internal threaded block 23 to move laterally, the top of the internal threaded block 23 abuts against the bottom of the lifting plate 1 and slides laterally. The lifting plate 1 can be used to limit the internal threaded block 23, preventing the rotating adjusting screw 22 from driving the internal threaded block 23 to rotate, thus improving the stability of the lateral movement of the internal threaded block 23.

[0028] like Figures 1 to 3 As shown, a horizontal bar 4 is fixedly connected to the side of the internal threaded block 23 away from the lifting plate 1. The L-shaped clamp 31 and the vertical clamp 32 are respectively connected to the two ends of the bottom of the horizontal bar 4. The L-shaped clamp 31 and the vertical clamp 32 are connected by the horizontal bar 4, so that a certain gap is left between the L-shaped clamp 31 and the vertical clamp 32, so that the end of the leaf spring can be inserted into the inside of the horizontal bar of the L-shaped clamp 31, and cooperate with the vertical clamp 32 to clamp the end of the leaf spring inside for lifting operation.

[0029] like Figures 1 to 3As shown, the L-shaped clamp 31 is rotatably connected to one end of the bottom of the horizontal bar 4, and the vertical clamp 32 is fixedly connected to the other end of the bottom of the horizontal bar 4. By rotating the L-shaped clamp 31 at the bottom of the horizontal bar 4, the horizontal bar of the L-shaped clamp 31 can be rotated away from the vertical clamp 32. Then, the end of the leaf spring can be moved from the bottom opening of the L-shaped clamp 31 and the vertical clamp 32 to between the L-shaped clamp 31 and the vertical clamp 32. Finally, the horizontal bar of the L-shaped clamp 31 is rotated back to the bottom of the leaf spring, thus making it easier to clamp the end of the leaf spring inside the clamping assembly 3 and improving the convenience of clamping operation.

[0030] like Figures 1 to 3 As shown, a rotary motor 5 is fixedly connected to the top of the crossbar 4 near the L-shaped clamp 31. The output shaft of the rotary motor 5 passes downward through the crossbar 4 and is fixedly connected to the end of the L-shaped clamp 31. Rotating the L-shaped clamp 31 is achieved by starting the rotary motor 5. The rotary motor 5 is a locking motor; when the bottom crossbar of the L-shaped clamp 31 is rotated to the bottom of the leaf spring, the rotary motor 5 locks the L-shaped clamp 31, preventing it from being squeezed outwards and moving when the leaf spring is pressed down, thus improving the stability of the clamping and lifting operation.

[0031] like Figures 1 to 3 As shown, a U-shaped frame 6 is fixedly connected to the end of the vertical clamping rod 32 away from the horizontal bar 4. The U-shaped frame 6 is horizontally positioned at the bottom of the vertical clamping rod 32. The end of the L-shaped clamping rod 31 near the vertical clamping rod 32 is slidably connected to the inner wall of the U-shaped frame 6. When the end of the horizontal bar of the L-shaped clamping rod 31 rotates and moves towards the vertical clamping rod 32, it moves to the inner side of the U-shaped frame 6. The U-shaped frame 6 supports the bottom of the L-shaped clamping rod 31, thereby preventing the bottom horizontal bar of the L-shaped clamping rod 31 from bending downwards under the load, improving the stability and support effect of the L-shaped clamping rod 31 in suspending the leaf spring.

[0032] like Figures 1 to 3 As shown, the opening of the U-shaped frame 6 faces the other clamping assembly 3. With the opening of the U-shaped frame 6 facing the inside of the clamp, when the end of the leaf spring is pressed outward by gravity, the U-shaped frame 6 with its opening facing inward can prevent the horizontal bar of the L-shaped clamp 31 from moving outward. Combined with the locking effect of the rotary motor 5, this further improves the stability of the L-shaped clamp 31 in suspending the leaf spring. At the same time, when the rotary motor 5 malfunctions and cannot achieve the locking effect, the U-shaped frame 6 can still provide a blocking effect.

[0033] like Figures 1 to 3 As shown, lifting rings 7 are fixedly connected to both ends of the top of the lifting plate 1. The lifting plate 1 is more stable during the lifting operation and the swaying amplitude of the lifting plate 1 can be reduced by the two lifting rings 7 at both ends of the top.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A steel leaf spring electrophoretic coating fixture, comprising a lifting plate (1), characterized in that: The bottom of the hoisting plate (1) is connected to an adjustment assembly (2), and the bottom of the adjustment assembly (2) is connected to two symmetrically arranged clamping assemblies (3). The clamping assembly (3) includes an L-shaped clamping rod (31) and a vertical clamping rod (32). The L-shaped clamping rod (31) and the vertical clamping rod (32) are spliced ​​together to form a U-shaped structure, and clamp one end of the steel plate spring inside.

2. The electrophoretic coating fixture for steel leaf springs according to claim 1, characterized in that: The adjustment assembly (2) includes a dual-axis motor (21), two adjusting screws (22) and two internal threaded blocks (23). The dual-axis motor (21) is fixedly installed at the middle position of the bottom of the lifting plate (1) through a motor base. The two adjusting screws (22) are fixedly connected to the output shafts at both ends of the dual-axis motor (21). The two internal threaded blocks (23) are respectively fitted with the two adjusting screws (22) and are threadedly connected to the two adjusting screws (22). The side of the two internal threaded blocks (23) away from the lifting plate (1) is connected to two clamping assemblies (3).

3. The electrophoretic coating fixture for steel leaf springs according to claim 2, characterized in that: The bottom ends of the hoisting plate (1) are fixedly connected to support blocks (11), and the ends of the two adjusting screws (22) away from the dual-axis motor (21) are rotatably connected to the two support blocks (11).

4. A steel leaf spring electrophoretic coating fixture according to claim 2 or 3, characterized in that: The top of the internal threaded block (23) is slidably connected to the bottom of the lifting plate (1).

5. A steel leaf spring electrophoretic coating fixture according to claim 2 or 3, characterized in that: The internal threaded block (23) is fixedly connected to a horizontal bar (4) on the side away from the lifting plate (1), and the L-shaped clamp (31) and the vertical clamp (32) are respectively connected to the two ends of the bottom of the horizontal bar (4).

6. A steel leaf spring electrophoretic coating fixture according to claim 5, characterized in that: The L-shaped clamp (31) is rotatably connected to one end of the bottom of the crossbar (4), and the vertical clamp (32) is fixedly connected to the other end of the bottom of the crossbar (4).

7. A steel leaf spring electrophoretic coating fixture according to claim 6, characterized in that: A rotary motor (5) is fixedly connected to the top of the crossbar (4) near the L-shaped clamp (31). The output shaft of the rotary motor (5) passes through the crossbar (4) downward and is fixedly connected to the end of the L-shaped clamp (31).

8. A steel leaf spring electrophoretic coating fixture according to claim 1, 2, 3, 6 or 7, characterized in that: The vertical clamp (32) is fixedly connected to a U-shaped frame (6) at the end away from the horizontal bar (4). The U-shaped frame (6) is horizontally arranged at the bottom of the vertical clamp (32). The L-shaped clamp (31) is slidably connected to the inner wall of the U-shaped frame (6) at the end near the vertical clamp (32).

9. A steel leaf spring electrophoretic coating fixture according to claim 8, characterized in that: The opening of the U-shaped frame (6) faces another clamping assembly (3).

10. A steel leaf spring electrophoretic coating fixture according to claim 1, 2, 3, 6, 7 or 9, characterized in that: Lifting rings (7) are fixedly connected to both ends of the top of the lifting plate (1).

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