A bottom cover press for automotive shock absorbers

Abstract

This utility model provides a bottom cover press for automotive shock absorbers, belonging to the technical field of automotive shock absorber technology. The bottom cover press for automotive shock absorbers includes a frame and guide pillars vertically mounted on the frame, as well as a product tooling. The product tooling includes a tooling rod and a moving mechanism for driving the tooling rod to translate. The pressing mechanism includes a servo electric cylinder mounted on the frame and a floating pressing assembly slidably mounted on the guide pillar and driven by the servo electric cylinder. The floating pressing assembly includes a pressure plate group mounted at the output end of the servo electric cylinder and a pressing tooling elastically telescopically mounted at the bottom end of the pressure plate group. This utility model utilizes the elastic setting of the pressing tooling on the pressure plate group to flexibly press the bottom cover of the workpiece into the inner cylinder of the shock absorber. Since the pressing tooling can telescopically move along the pressure plate group when pressing the bottom cover, the pressing force can be controlled, avoiding the problem of uncontrollable pressing force and easy damage to the inner cylinder of the shock absorber that exists in traditional rigid contact.

Description

Technical Field

[0001] This utility model relates to the field of automotive shock absorber technology, specifically to a bottom cover press for automotive shock absorbers. Background Technology

[0002] Press-fitting the bottom cover of an automotive shock absorber is a crucial process in shock absorber manufacturing, directly affecting the product's sealing performance, durability, and overall performance. The main steps in the bottom cover press-fitting process are as follows: bottom cover pretreatment – ​​applying sealant – press-fitting – pressure holding and shaping. In existing shock absorber pressing processes, hydraulic rods or electric cylinders are used as the driving source to drive the pressing mold to contact the bottom cover, pressing it into the shock absorber's inner cylinder. However, existing pressing molds often have rigid contact with the bottom cover, making the pressing force uncontrollable and resulting in insufficient pressing precision. This is especially problematic when the bottom cover is misaligned, easily causing damage at the joint between the bottom cover and the shock absorber's inner cylinder. Utility Model Content

[0003] This utility model provides a bottom cover press for automotive shock absorbers. By utilizing the elastic setting of the pressing fixture on the pressure plate assembly, the bottom cover of the workpiece can be flexibly pressed into the inner cylinder of the shock absorber. Since the pressing fixture can extend and retract along the pressure plate assembly when pressing the bottom cover, the pressing force can be controlled, avoiding the problem of uncontrollable pressing force and easy damage to the inner cylinder of the shock absorber caused by traditional rigid contact.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A bottom cover press for automotive shock absorbers includes a frame and guide columns vertically mounted on the frame, and further includes:

[0006] Product tooling, the product tooling includes a tooling rod and a moving mechanism for driving the tooling rod to translate;

[0007] A pressing mechanism, comprising a servo electric cylinder mounted on a frame and a floating pressing assembly slidably mounted on a guide post and driven by the servo electric cylinder;

[0008] The floating pressing assembly includes a pressure plate group disposed at the output end of the servo electric cylinder and a pressing fixture that is elastically telescopically disposed at the bottom end of the pressure plate group.

[0009] Preferably, the guide posts are four arranged vertically along the frame.

[0010] Preferably, the moving mechanism includes a guide rail disposed on the top of the frame, a tooling seat slidably disposed on the guide rail, and a moving cylinder disposed on the frame for moving the tooling seat, wherein the tooling rod is fixedly disposed on the top of the tooling seat.

[0011] Preferably, a pressure sensor is also provided between the output end of the servo electric cylinder and the pressure plate assembly.

[0012] Preferably, the pressure plate assembly includes an intermediate pressure plate and a lower pressure plate slidably disposed on the guide post, and a connecting sleeve is provided between the intermediate pressure plate and the lower pressure plate.

[0013] Preferably, both the intermediate pressure plate and the lower pressure plate are slidably connected to the guide post via guide sleeves.

[0014] Preferably, the pressing fixture includes a sliding part that is slidably connected to the lower pressure plate and a pressing part disposed at the bottom end of the sliding part, wherein one end of the sliding part away from the pressing part extends into the interior of the connecting sleeve.

[0015] Preferably, a spring is provided between the end of the sliding part located inside the connecting sleeve and the inner wall of the connecting sleeve.

[0016] As can be seen from the above technical solutions, this utility model has the following beneficial effects:

[0017] 1. In this utility model, the moving mechanism extends the tooling rod from inside the machine frame. The workpiece is placed on the tooling rod of the product tooling by the operator. Then, the moving mechanism retracts the tooling rod, moving the tooling rod and the workpiece on it to the central processing position. The servo electric cylinder moves downward, driving the floating pressing assembly to move downward, so that the pressure plate group contacts the workpiece. As the pressure plate group continues to move downward, the pressing tooling contacts the workpiece. The elastic setting of the pressing tooling on the pressure plate group allows for flexible pressing of the bottom cover of the workpiece into the inner cylinder of the shock absorber. Since the pressing tooling can move along the pressure plate group during pressing of the bottom cover, the pressing force can be controlled, avoiding the problem of uncontrollable pressing force and easy damage to the inner cylinder of the shock absorber caused by traditional rigid contact. After pressing is completed, the servo electric cylinder stops moving downward and rises in the opposite direction to the initial position. At this time, the bottom cover has been pressed into the inner cylinder of the shock absorber. The moving mechanism drives the tooling rod to extend, and the processing is completed. At this time, the shock absorber after pressing can be taken out manually and a shock absorber to be pressed can be placed on top.

[0018] 2. In this utility model, the end of the sliding part away from the pressing part extends into the interior of the connecting sleeve, and a spring is provided between the end of the sliding part placed inside the connecting sleeve and the inner wall of the connecting sleeve. In this way, the sliding part can be elastically extended and retracted on the lower pressure plate, so that when the pressing part presses the bottom cover, the sliding part can be driven to slide into the lower pressure plate and the spring is compressed at the same time to achieve flexible contact between the pressing part and the bottom cover. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure with the outer shell removed;

[0021] Figure 3 for Figure 2 Schematic diagram of section AA;

[0022] Figure 4 for Figure 3 A magnified view of part B in the middle section.

[0023] In the diagram: 10, frame; 20, guide post; 310, tooling rod; 321, guide rail; 322, tooling base; 323, moving cylinder; 410, servo electric cylinder; 431, intermediate pressure plate; 432, lower pressure plate; 433, connecting sleeve; 434, guide sleeve; 435, spring; 440, pressing tooling; 50, pressure sensor. Detailed Implementation

[0024] A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0025] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions: (Refer to...) Figure 1 , Figure 2A bottom cover press for automotive shock absorbers includes a frame 10 and guide pillars 20. The guide pillars 20 are vertically fixed on the frame, forming the main frame structure of the press. The press also includes a product tooling and a pressing mechanism. The product tooling includes a tooling rod 310 and a moving mechanism for driving the tooling rod to move. The pressing mechanism includes a servo cylinder 410 and a floating pressing assembly. The servo cylinder 410 is fixedly mounted on the top of the frame 10, and the floating pressing assembly is slidably mounted on the guide pillars 20. The floating pressing assembly can be driven by the servo cylinder to move along the guide pillars. Specifically, the floating pressing assembly includes a pressure plate assembly and a pressing fixture 440. The pressure plate assembly is located at the output end of the servo cylinder 410, and the pressing fixture 440 is elastically telescopically mounted at the bottom end of the pressure plate assembly. In use, the moving mechanism moves the tooling rod from the frame... The workpiece is manually placed on the tooling rod of the product fixture. The moving mechanism then retracts the tooling rod, moving the tooling rod and the workpiece to the center processing position. The servo cylinder moves downward, driving the floating pressing assembly to move downward, so that the pressure plate group contacts the workpiece. As the pressure plate group continues to move downward, the pressing fixture contacts the workpiece. Utilizing the elastic setting of the pressing fixture on the pressure plate group, the bottom cover of the workpiece is flexibly pressed into the inner cylinder of the shock absorber. Because the pressing fixture can extend and retract along the pressure plate group when pressing the bottom cover, the pressing force can be controlled, avoiding the problem of uncontrollable pressing force and easy damage to the inner cylinder of the shock absorber caused by traditional rigid contact. After pressing is completed, the servo cylinder stops moving downward and rises back to the initial position. At this time, the bottom cover has been pressed into the inner cylinder of the shock absorber. The moving mechanism drives the tooling rod to extend, and the processing is completed. At this time, the shock absorber after pressing can be removed manually, and the shock absorber to be pressed can be placed on top.

[0026] Reference Figure 1 As a preferred technical solution in this embodiment, the guide posts 20 in this embodiment are four arranged vertically along the frame 10, and the four guide posts are arranged in a rectangular shape with the four corners set. In this way, the floating pressure component is slidably arranged on the aforementioned four guide posts, thereby ensuring the stability of the movement of the floating pressure component.

[0027] Furthermore, refer to Figure 3The moving mechanism includes a guide rail 321, a fixture base 322, and a moving cylinder 323. The guide rail 321 is fixedly mounted on the top of the frame 10, the fixture base 322 is slidably mounted on the guide rail, and the moving cylinder 323 is fixedly mounted on the frame 10. The output end of the moving cylinder is fixedly connected to the fixture base, so that the moving cylinder can be used to drive the fixture base 322 to move. It should be noted that the fixture rod 310 is fixedly mounted on the top of the fixture base. In use, the moving cylinder can drive the fixture rod to move horizontally on the top of the frame. This allows the fixture rod to extend out of the frame during loading, so that the shock absorber to be pressed can be placed on the fixture rod. Then, the moving cylinder can be used to move the fixture rod with the shock absorber to the center of the frame to be processed, which is conducive to the subsequent pressing work.

[0028] Reference Figure 3 , Figure 4 In some embodiments, a pressure sensor 50 is also provided between the output end of the servo electric cylinder 410 and the pressure plate assembly. Specifically, the pressure sensor is located between the output shaft of the servo electric cylinder and the top of the pressure plate assembly. In this way, when the bottom cover is pressed by the pressing fixture, the pressing fixture will transmit the force to the pressure sensor, thereby monitoring the pressing force applied to the bottom cover, so as to adjust the pressing process according to the work needs and achieve effective control of the pressing force.

[0029] In some embodiments, refer to Figure 2 , Figure 3 The pressure plate assembly includes a middle pressure plate 431 and a lower pressure plate 432. Both the middle pressure plate 431 and the lower pressure plate 432 are square plates and are slidably mounted on the guide post 20. A connecting sleeve 433 is provided between the middle pressure plate 431 and the lower pressure plate 432 to form an integral frame structure distributed along the axial direction of the guide post, so as to install the pressing tool. It should be noted that the top of the middle pressure plate is connected to the output end of the servo electric cylinder. In this way, when the middle pressure plate is driven to move along the guide post by the servo electric cylinder, the lower pressure plate and its pressing tool can be synchronously driven.

[0030] Furthermore, refer to Figure 2 In order to achieve stable movement of the intermediate pressure plate 431 and the lower pressure plate 432 along the guide post, the intermediate pressure plate 431 and the lower pressure plate 432 are slidably connected to the guide post 20 through the guide sleeve 434. Specifically, through holes are fixedly opened at the four corners of the intermediate pressure plate and the lower pressure plate, and the guide sleeve is fixedly connected in the aforementioned through holes. Then, the intermediate pressure plate and the lower pressure plate are slidably placed on the guide post using the guide sleeve.

[0031] Furthermore, refer to Figure 4The pressing fixture 440 includes a sliding part and a pressing part. The sliding part is slidably connected to the lower pressure plate 432, and the pressing part is integrally formed with the sliding part. The pressing part is located at the bottom end of the sliding part. The end of the sliding part away from the pressing part extends into the interior of the connecting sleeve 433. A spring 435 is provided between the end of the sliding part located inside the connecting sleeve 433 and the inner wall of the connecting sleeve. In this way, the sliding part can be elastically extended and retracted on the lower pressure plate. When the pressing part presses the bottom cover, it can drive the sliding part to slide into the lower pressure plate and compress the spring at the same time to achieve flexible contact between the pressing part and the bottom cover.

[0032] The pressing fixture is floatingly mounted at the bottom of the lower pressure plate 432 via a spring 435. Combined with a pressure sensor 50 located at the output end of the servo cylinder 410, when the bottom cover is pressed into the inner cylinder of the shock absorber using this bottom cover press, the pressure sensor 50 can accurately reflect the downward pressure of the pressing fixture 440. Once the downward pressure reaches the set value, the pressing operation is considered complete. Because the pressing fixture 440 and the bottom cover are in flexible contact during the pressing process, the pressure on the bottom cover is a slowly increasing force applied by the spring 435. This prevents damage to the bottom cover due to misalignment. Simultaneously, as the spring force slowly increases, the bottom cover is guided by the inner wall of the shock absorber's outer cylinder, causing it to move to the correct position and ensuring the pressing accuracy of the bottom cover.

[0033] In use, loading and unloading are done manually. The worker places the workpiece on the tooling rod 310, the moving cylinder 323 retracts, and the tooling seat 322 moves to the centering and processing position. The servo cylinder 410 moves downward, causing the intermediate pressure plate 431, the lower pressure plate 432 and the pressing tool 440 to move downward. The pressing tool 440 contacts the workpiece. At this time, the pressure sensor 50 has not yet reached the set value. The servo cylinder 410 continues to move downward, the intermediate pressure plate 431 and the lower pressure plate 432 move downward, and the pressing tool 440 further contacts the workpiece and compresses the spring. At the same time, under the action of the spring, the bottom cover of the workpiece is pressed into the inner cylinder of the shock absorber. When the pressure sensor 50 reaches the set value, the servo cylinder 410 stops moving downward and rises to the initial position. At this time, the bottom cover has been pressed into the inner cylinder, the moving cylinder 323 extends, the processing is completed, and the worker can pick up and put down the workpiece.

[0034] The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A bottom cover press for automotive shock absorbers, comprising a frame (10) and guide posts (20) vertically disposed on the frame, characterized in that, Also includes: Product tooling, the product tooling includes a tooling rod (310) and a moving mechanism for driving the tooling rod to translate; The pressing mechanism includes a servo electric cylinder (410) mounted on the frame (10) and a floating pressing assembly slidably mounted on the guide post (20) and driven by the servo electric cylinder. The floating pressing assembly includes a pressure plate group disposed at the output end of the servo electric cylinder (410) and a pressing tool (440) that is elastically telescopically disposed at the bottom end of the pressure plate group.

2. The bottom cover press for automotive shock absorbers according to claim 1, characterized in that, The guide pillars (20) are four arranged vertically along the frame (10).

3. The bottom cover press for automotive shock absorbers according to claim 1, characterized in that, The moving mechanism includes a guide rail (321) set on the top of the frame (10), a tooling seat (322) slidably set on the guide rail, and a moving cylinder (323) set on the frame (10) for moving the tooling seat (322). The tooling rod (310) is fixedly set on the top of the tooling seat.

4. The bottom cover press for automotive shock absorbers according to claim 1, characterized in that, A pressure sensor (50) is also provided between the output end of the servo electric cylinder (410) and the pressure plate assembly.

5. The bottom cover press for automotive shock absorbers according to claim 1, characterized in that, The pressure plate assembly includes an intermediate pressure plate (431) and a lower pressure plate (432) slidably disposed on the guide post (20), and a connecting sleeve (433) is provided between the intermediate pressure plate (431) and the lower pressure plate (432).

6. The bottom cover press for automotive shock absorbers according to claim 5, characterized in that, The intermediate pressure plate (431) and the lower pressure plate (432) are slidably connected to the guide post (20) through the guide sleeve (434).

7. The bottom cover press for automotive shock absorbers according to claim 5, characterized in that, The pressing fixture (440) includes a sliding part that is slidably connected to the lower pressure plate (432) and a pressing part disposed at the bottom end of the sliding part, wherein one end of the sliding part away from the pressing part extends into the interior of the connecting sleeve (433).

8. The bottom cover press for automotive shock absorbers according to claim 7, characterized in that, A spring (435) is provided between the end of the sliding part located inside the connecting sleeve (433) and the inner wall of the connecting sleeve.

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