Shock absorber drawing press and drawing method

By designing a shock absorber pressing and drawing machine, and utilizing a floating cover cylinder and a piston rod cylinder in conjunction with a clamping cylinder, the automatic pressing and drawing of the shock absorber and gas venting are achieved, solving the problem of high labor intensity in manual pressing and drawing, and improving pressing and drawing efficiency and automation.

CN117644381BActive Publication Date: 2026-06-26WUXI MINGZHEN MASCH MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUXI MINGZHEN MASCH MFG CO LTD
Filing Date
2024-01-18
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The residual gas inside the shock absorber housing results in high labor intensity during manual pressure pulling and affects the pulling efficiency.

Method used

Design a shock absorber pressing and pulling machine, which uses a floating cover cylinder and a piston rod cylinder in conjunction with a clamping cylinder. Through the operation of the rotating movable plate and the piston rod, automated pressing and pulling and gas venting are achieved. Combined with the motor and reducer to control the speed, multi-station synchronous operation is realized.

Benefits of technology

It improves the efficiency and automation of shock absorber compression and extraction, reduces manual labor intensity, and enables rapid replacement and efficient gas venting.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a shock absorber pressure drawing machine and a pressure drawing method, relates to the field of shock absorbers, and comprises a mounting rack and a carrier plate, a plurality of vertical plates are arranged on the carrier plate, a pressure drawing mechanism is arranged on one side of the vertical plate, and a shock absorber is arranged on the pressure drawing mechanism; the pressure drawing mechanism comprises a floating cover cylinder and a piston rod cylinder, an extrusion rod connected with the floating cover cylinder is aligned with an exhaust end of the shock absorber; the piston end is in communication with an internal air channel of the exhaust end; the piston rod performs pressure drawing to exhaust residual gas to the exhaust end; and the extrusion rod extrudes the exhaust end to exhaust gas. The structure is characterized in that multiple stations are synchronously operated, the rotating disc drives the movable plate to rotate, the piston rod cylinder is started at the same time of rotation and continuously performs pressure drawing operation, the pressure drawing operation and centrifugal force can concentrate and throw the gas in the air channel of the shock absorber to the exhaust end, and then the floating cover cylinder is started to exhaust residual gas in the exhaust end. The effect of quick replacement is realized after the quick clamp and the clamping cylinder are arranged on the movable plate, and the assembly replacement efficiency after pressure drawing is improved.
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Description

Technical Field

[0001] This application relates to the field of shock absorbers, and in particular to a shock absorber compression machine and compression method. Background Technology

[0002] Due to manufacturing processes and structural factors, shock absorbers sometimes retain residual gas inside the casing that is difficult to expel. This gas can affect the normal use of the product. Therefore, the industry typically introduces a manual compression process to manually compress the shock absorbers. However, manual compression requires more manpower, involving clamping and manually pressing each product, making the entire process labor-intensive. Summary of the Invention

[0003] This application provides a shock absorber compression machine and compression method, which solves the problem that manual compression of shock absorbers is labor-intensive and affects compression efficiency.

[0004] On the one hand, this application provides a shock absorber compression machine, including a mounting frame, a carrier plate on the frame, a plurality of vertical plates on the carrier plate, a compression mechanism on one side of the vertical plates, and a shock absorber on the compression mechanism;

[0005] The compression mechanism includes a floating cover cylinder and a piston rod cylinder. The piston rod cylinder compresses the piston end of the shock absorber by controlling the piston rod. The compression rod connected to the floating cover cylinder is aligned with the exhaust end of the shock absorber.

[0006] The piston end is connected to the internal air passage of the exhaust end. The piston rod is pulled to discharge the residual gas to the exhaust end, and the extrusion rod compresses the exhaust gas at the exhaust end.

[0007] Specifically, the pressure-pulling mechanism further includes a movable plate and a fixed plate and a fixed block mounted on the movable plate. The floating cover cylinder and the piston rod cylinder are fixedly mounted on the fixed plate, and the shock absorber is disposed on the fixed block.

[0008] Specifically, a quick clamp is also provided on the movable plate, which fixes the shock absorber to the fixed block.

[0009] Specifically, the floating cover cylinder and the piston rod cylinder are arranged in parallel, and a clamping cylinder is cascaded on the piston rod cylinder. The clamping cylinder and the piston rod cylinder are located on both sides of the fixed plate, respectively.

[0010] The clamping part of the clamping cylinder clamps one end of the piston rod, and the other end of the piston rod is installed into the piston end of the shock absorber.

[0011] Specifically, the clamping part of the clamping cylinder includes two constricted clamping blocks with toothed grooves. One end of the piston rod bites into the toothed grooves and performs a pulling action.

[0012] Specifically, the clamping block is connected to the telescopic end of the piston rod cylinder, and the compression stroke is controlled by the piston rod cylinder.

[0013] Specifically, a turntable is provided on the vertical plate, and the turntable is connected to the movable plate;

[0014] A speed reducer is also provided on the carrier plate, and the speed reducer is connected to the turntable belt.

[0015] Specifically, a rotating shaft is provided through the vertical plate, and a fixed plate is installed on the movable plate;

[0016] The turntable and the fixed plate are respectively installed at both ends of the rotating shaft, and the fixed plate and the turntable are respectively located on both sides of the vertical plate.

[0017] On the other hand, this application provides a method for pulling out shock absorbers using a shock absorber puller, the method comprising:

[0018] Return the movable plate of the shock absorber puller to its initial position. In the initial state, the piston end and exhaust end of the shock absorber are tilted downwards, and the exhaust end is located above the piston end.

[0019] Start the piston rod cylinder to control the piston rod to press in or pull out of the piston end. The extrusion rod connected to the floating cover cylinder is aligned with but does not contact the exhaust end. Start the motor and reducer. By rotating the turntable and the movable plate, the shock absorber is rotated from the downward port to the upward tilt of the port, controlling the piston rod to pull out of the piston end. At this time, the movable plate is in the first working position.

[0020] Rotate the movable plate in the opposite direction to restore the shock absorber from its upward tilt at the port to its downward tilt at the port, and press the piston rod into or pull out the piston end; at this time, the movable plate is in the initial working position.

[0021] Rotate the movable plate in the opposite direction again to move the shock absorber from the initial position to the first position, and press the piston rod into or pull out the piston end;

[0022] Continue rotating the movable plate to press the piston rod into or out of the piston end, and control the shock absorber to rotate from tilting upwards from the port to vertically upwards; at this time, the movable plate is in the second working position;

[0023] The movable plate is rotated in the opposite direction to the initial position to complete one rotation cycle;

[0024] The set target number of rotation cycles are executed repeatedly to activate the floating cover cylinder and control the extrusion rod to expel the exhaust end, thus emptying the residual gas in the shock absorber.

[0025] Specifically, the piston end and exhaust end in the initial position are tilted downwards, forming an angle of 72° with the vertical direction;

[0026] The movable plate rotates 72° from the original station to the first station, with the piston end and exhaust end tilted upwards, forming an angle of 36° with the vertical direction;

[0027] The movable plate rotates 36° from the first station to the second station, with the piston end and exhaust end tilted vertically upwards.

[0028] The beneficial effects of the technical solution provided in this application embodiment include at least the following: the structure controls the rotation speed through a motor and a reducer, drives the movable plate to rotate through a turntable, and simultaneously activates the piston rod cylinder to continuously perform the compression operation. The compression operation and centrifugal force can concentrate and throw the gas in the shock absorber's air passage to the exhaust end, and then activate the floating cover cylinder to vent the residual gas at the exhaust end. This device can operate synchronously at multiple stations, and the quick clamp 7 and clamping cylinder on the movable plate enable rapid replacement, improving the assembly and replacement efficiency after compression. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the shock absorber puller provided in the embodiments of this application;

[0030] Figure 2 This is an exploded view of a relay assembly;

[0031] Figure 3 This is a cross-sectional view of the relay assembly;

[0032] Figure 4 This is a schematic diagram of the drive rod and each magnet;

[0033] Figure 5 This is a structural diagram of the drive control box installation;

[0034] Figure 6 This is a schematic diagram of the structure for installing the arc-shaped mounting base;

[0035] Figure 7 This is a schematic diagram of the relay assembly mounted on an arc-shaped mounting base;

[0036] Figure 8 This is a schematic diagram of the connector structure.

[0037] Reference numerals: Frame-1, Carrier plate-2, Vertical plate-3, Pressure pulling mechanism-4, Floating cover cylinder-41, Piston rod cylinder-42, Clamping cylinder-43, Clamping block-431, Tooth groove-432, Movable plate-44, Fixed plate-45, Fixed block-46, Quick clamp-47, Extrusion rod-48, Piston rod-49, Shock absorber-5, Exhaust end-51, Piston end-52, Reducer-6, Turntable-61, Rotating shaft-62, Fixed plate-63, Electrical box-7, Control switch-8. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0039] In this article, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0040] Figure 1 This is a schematic diagram of the structure of the shock absorber compression machine provided in an embodiment of this application. The structure includes a mounting frame 1, a transverse carrier plate 2 mounted on the frame 1, and several vertical plates 3 mounted on the carrier plate 2. Each vertical plate 3 corresponds to a compression mechanism 4, and the compression mechanism 4 is located on one side of the vertical plate 3. The shock absorber 5 is mounted on the compression mechanism 4. In some embodiments, the frame 1 can be made larger, and multiple sets of vertical plates 3 can be used for simultaneous compression, such as... Figure 1 Dual-station operation is used.

[0041] The compression mechanism 4 includes a floating cover cylinder 41 and a piston rod cylinder 42. The piston rod cylinder 42 is connected to a piston rod 49 (inserted into the shock absorber 5). By controlling the piston rod 49, the piston end 52 of the shock absorber 5 is compressed. The compression rod 48 connected to the floating cover cylinder 41 is aligned with the exhaust end 51 of the shock absorber 5.

[0042] See Figure 3 and Figure 4 The piston rod 5 includes two parts: a piston end 52 and an exhaust end 51. It has a connected air passage inside. The function of the piston rod 49 is to discharge the residual gas to the exhaust end 51 by pressing (including squeezing the residual gas at the piston end 52 to the exhaust end 51). Finally, the exhaust end 51 is squeezed by the squeeze rod 48, thereby emptying the residual gas in the internal air passage (the exhaust end 51 has an exhaust hole at the port, and the air is discharged by squeezing).

[0043] Figure 2This is a schematic diagram of the compression mechanism 4. The compression mechanism 4 also includes a movable plate 44 and a fixed plate 45 and a fixed block 46 mounted on the movable plate 44. The floating cover cylinder 41 and the piston rod cylinder 42 are fixedly mounted on the fixed plate 45, while the shock absorber 5 is mounted on the fixed block 46. Specifically, the floating cover cylinder 41 and the piston rod cylinder 42 are arranged parallel to each other on the movable plate 44. Two grooves are formed in the fixed block 46, and the piston end 52 and the exhaust end 51 are engaged in the grooves. The connection between the piston end 52 and the exhaust end 51 can be fixedly mounted to the movable plate 44 to improve stability.

[0044] To improve exhaust and assembly efficiency, a quick clamp 47 can also be provided on the movable plate 44. The quick clamp 47 can clamp the piston end 52 or the exhaust end 51 and fix the shock absorber 5 into the groove on the fixing block 46.

[0045] In some embodiments, for quick clamping and replacement, the piston rod is installed in the piston end 52 of the shock absorber 5. Therefore, the movable rod of the piston rod cylinder 42 does not directly contact the shock absorber 5. A clamping cylinder 43 is cascaded onto the piston rod cylinder 42, allowing the movable rod (telescopic end) of the piston rod cylinder 42 to be installed onto the clamping cylinder 43. The clamping part of the clamping cylinder 43 clamps one end of the piston rod 49, and the other end of the piston rod 49 is installed in the piston end 52 of the shock absorber 5. This structure facilitates assembly; the cooperation between the quick clamp 47 and the clamping cylinder 43 facilitates assembly and improves extraction efficiency.

[0046] Figure 7 These are detailed images of the clamping cylinder. Figure 8 yes Figure 7 The enlarged view at point A shows that the clamping cylinder 43 has a clamping part inside, which includes two constricted clamping blocks 431. The clamping blocks 431 have toothed grooves 432. One end of the piston rod 49 is gripped by the toothed grooves 432 of the upper and lower clamping blocks 431 and performs a pressing action. After the action is completed, they automatically separate to achieve quick replacement.

[0047] Figure 5 This is an installation diagram of the vertical plate and the speed reducer. Figure 6 This is a schematic diagram showing the connection between the turntable and the movable plate. A turntable 61 is mounted on the vertical plate 3, and the turntable 61 is connected to the movable plate 44. A reducer 6 is also mounted on the carrier plate 2, and the reducer 6 is connected to the turntable 61 via a belt. A rotating shaft 62 is also mounted on the vertical plate 3, and a fixed plate 63 is mounted on the movable plate 44. The turntable 61 and the fixed plate 63 are respectively mounted at both ends of the rotating shaft 62, and the fixed plate 63 and the turntable 61 are located on opposite sides of the vertical plate 3. The rotating shaft 62 drives the movable plate 44 to rotate.

[0048] Working principle: The starting motor and reducer 6 drive the movable plate 44 to rotate via the turntable 61. Simultaneously, the rotation activates the piston rod cylinder 42 to continuously perform a pressure-pulling operation. This pressure-pulling operation and centrifugal force concentrate the gas in the shock absorber 5's air passage and throw it to the exhaust end 51. Then, the floating cover cylinder 41 is activated to vent the residual gas from the exhaust end 51. This device can operate synchronously at multiple stations, and the quick-clamp 7 and clamping cylinder 43 on the movable plate 44 enable rapid replacement, improving the assembly and replacement efficiency after pressure-pulling.

[0049] See Figure 1 In some embodiments, to facilitate control of the device's operation, an electrical box 7 can be installed at the bottom of the carrier plate 2 to control the electrical functions of the entire device. An emergency stop control box or control switch 8 is also installed on the carrier plate 2 for quick replacement after the pressure extraction process is completed, or for emergency stop in case of a malfunction.

[0050] This application also provides a method for applying pressure with a shock absorber pressure extractor, which is based on the shock absorber pressure extractor described above and specifically includes the following steps:

[0051] A. Return the movable plate 44 of the shock absorber puller to the initial position. In the initial state, the piston end 52 and the exhaust end 51 of the shock absorber 5 are tilted downwards, and the exhaust end 51 is located above the piston end 52.

[0052] The piston end 52 and the exhaust end 51 are tilted downwards to allow air to escape. When the opening is downwards, the gas naturally accumulates at the top, which is the connection between the piston end 52 and the exhaust end 51. This helps to compress the gas to the exhaust end 51 during compression. In some embodiments, the piston end 52 and the exhaust end 51 in the initial position can be tilted downwards at an angle of 72° with the vertical direction, i.e., an angle of 18° with the horizontal direction.

[0053] B. Start the piston rod cylinder 42, and control the piston rod 49 to press in or pull out the piston end 52. The extrusion rod 48 connected to the floating cover cylinder 41 is aligned with but does not contact the exhaust end 51. Start the motor and reducer 6, and rotate the turntable 61 and the movable plate 44 to rotate the shock absorber 5 from the port downward to the port tilted upward, and control the piston rod 49 to pull out the piston end 52. At this time, the movable plate 44 is in the first working position.

[0054] During the compression stage, the floating cover cylinder 41 is not activated, and the compression rod 48 is a certain distance from the exhaust end 51. This process can be clockwise or counterclockwise rotation, mainly rotating the shock absorber 5 from the port downward to the port tilted upward, which facilitates the entry of residual gas into the exhaust end 51. In some embodiments, the movable plate 44 can be rotated 72° from the original position to the first position, with the piston end 52 and the exhaust end 51 tilted upward, forming an inclination angle of 36° with the vertical direction.

[0055] C. Rotate the movable plate 44 in the opposite direction to restore the shock absorber 5 from the port tilting upward to the port tilting downward, and press the piston rod 49 into or pull out the piston end 52; at this time, the movable plate 44 is in the initial working position.

[0056] D. Rotate the movable plate 44 in the opposite direction again to rotate the shock absorber 5 from the initial position to the first position, and press the piston rod 49 into or pull out the piston end 52.

[0057] E. Continue to rotate the movable plate 44 to press the piston rod 49 into the piston end 52, and control the shock absorber 5 to rotate from the port tilting upward to vertical upward; at this time, the movable plate 44 is in the second working position;

[0058] In this step, the movable plate 44 rotates 36° from the first station to the second station, and the piston end 52 and the exhaust end 51 tilt vertically upward. This vertical upward tilt allows the gas to be vented to the port of the piston end 52.

[0059] F, rotate the movable plate 44 in the opposite direction to the initial position to complete one rotation cycle;

[0060] G, cyclically executes the set target number of rotation cycles, starts the floating cover cylinder 41, and controls the extrusion rod 48 to extrude the exhaust end 51, emptying the residual gas in the shock absorber 5.

[0061] At the end of the last cycle, the exhaust end 51 is vertically upward. Because a movable plug is provided at the exhaust end 51, the floating cover cylinder 41 is activated and the squeeze rod 48 is controlled to squeeze the floating piston, which can completely empty the gas in the air passage.

[0062] In summary, this solution, combined with the structure of the shock absorber compression machine, controls the synchronous execution of multi-station shock absorbers. The shock absorber 5 is set with its port facing downwards for compression, and the movable plate 44 is rotated to gradually adjust the port to face upwards, which helps to gather the gas to the exhaust end 51. Then, the gas is vented by squeezing the floating piston. This solution replaces manual compression operation and greatly improves the compression efficiency of the shock absorber.

[0063] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above. The devices and structures not described in detail should be understood as being implemented in a conventional manner in the art. Any person skilled in the art can make many possible changes and modifications, or equivalent changes to equivalent embodiments without departing from the technical solution of the present invention. This does not affect the substantive content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. A method for applying pressure with a shock absorber pressure extractor, characterized in that, The pressure extraction method is implemented by a pressure extraction machine, which includes a frame (1), a carrier plate (2) on the frame (1), several vertical plates (3) on the carrier plate (2), a pressure extraction mechanism (4) on one side of the vertical plates (3), and a shock absorber (5) on the pressure extraction mechanism (4). The compression mechanism (4) includes a movable plate (44), a floating cover cylinder (41), and a piston rod cylinder (42). The piston rod cylinder (42) compresses the piston end (52) of the shock absorber (5) by controlling the piston rod (49). The compression rod (48) connected to the floating cover cylinder (41) is aligned with the exhaust end (51) of the shock absorber (5). The piston end (52) is connected to the internal air passage of the exhaust end (51). The piston rod (49) pulls to discharge the residual gas to the exhaust end (51). The extrusion rod (48) extrudes the exhaust gas from the exhaust end (51). A turntable (61) is provided on the vertical plate (3). The turntable (61) is connected to the movable plate (44). A speed reducer (6) is also provided on the carrier plate (2). The speed reducer (6) is connected to the turntable (61) by a belt. When in use, the movable plate of the shock absorber puller is restored to the initial position. In the initial state, the piston end (52) and exhaust end (51) of the shock absorber (5) are tilted downwards, and the exhaust end (51) is located above the piston end (52). Start the piston rod cylinder (42), and control the piston rod (49) to press in or pull out the piston end (52) through the piston rod cylinder (42). The extrusion rod (48) connected to the floating cover cylinder (41) is aligned with but does not contact the exhaust end (51). Start the motor and reducer (6), and rotate the turntable (61) and movable plate (44) to rotate the shock absorber (5) from the port downward to the port tilted upward, control the piston rod (49) to pull out the piston end (52), at which time the movable plate (44) is in the first working position; Rotate the movable plate (44) in the opposite direction to restore the shock absorber (5) from tilting upward at the port to tilting downward at the port, press the piston rod (49) into or pull out the piston end (52), and at this time the movable plate (44) is in the initial working position; Rotate the movable plate (44) in the opposite direction again to rotate the shock absorber (5) from the initial position to the first position, and press the piston rod (49) into or out of the piston end (52); continue to rotate the movable plate (44) to press the piston rod (49) into or out of the piston end (52), and control the shock absorber (5) to rotate from the port tilting upward to vertical upward. At this time, the movable plate (44) is in the second position. Rotate the movable plate (44) in the opposite direction to the initial position to complete one rotation cycle. Repeat this rotation cycle several times until the residual gas in the shock absorber (5) is emptied.

2. The compression method of the shock absorber compression machine according to claim 1, characterized in that, The pressure-pulling mechanism (4) also includes a fixed plate (45) and a fixed block (46) installed on the movable plate (44). The floating cover cylinder (41) and the piston rod cylinder (42) are fixedly installed on the fixed plate (45), and the shock absorber (5) is installed on the fixed block (46).

3. The compression method of the shock absorber compression machine according to claim 2, characterized in that, A quick clamp (47) is also provided on the movable plate (44), which fixes the shock absorber (5) to the fixed block (46).

4. The compression method of the shock absorber compression machine according to claim 2, characterized in that, The floating cover cylinder (41) and the piston rod cylinder (42) are arranged in parallel. A clamping cylinder (43) is also connected to the piston rod cylinder (42). The clamping cylinder (43) and the piston rod cylinder (42) are located on both sides of the fixed plate (45). The clamping part of the clamping cylinder (43) clamps one end of the piston rod (49), and the other end of the piston rod (49) is installed in the piston end (52) of the shock absorber (5).

5. The compression method of the shock absorber compression machine according to claim 4, characterized in that, The clamping part of the clamping cylinder (43) includes two constricted clamping blocks (431), and toothed grooves (432) are provided on the clamping blocks (431). One end of the piston rod (49) is gripped by the toothed grooves (432) and performs a pressure action.

6. The compression method of the shock absorber compression machine according to claim 5, characterized in that, The clamp (431) is connected to the extension end of the piston rod cylinder (42), and the compression stroke is controlled by the piston rod cylinder (42).

7. The compression method of the shock absorber compression machine according to claim 1, characterized in that, A rotating shaft (62) is threaded through the vertical plate (3), and a fixed plate (63) is installed on the movable plate (44); The turntable (61) and the fixed plate (63) are respectively installed at both ends of the rotating shaft (62), and the fixed plate (63) and the turntable (61) are respectively located on both sides of the vertical plate (3).

8. The compression method of the shock absorber compression machine according to claim 1, characterized in that, The piston end (52) and exhaust end (51) in the initial working position are inclined downwards, and the inclination angle formed with the vertical direction is 72°; The movable plate (44) rotates 72° from the original station to the first station, with the piston end (52) and the exhaust end (51) tilted upwards, forming an inclination angle of 36° with the vertical direction; The movable plate (44) rotates 36° from the first station to the second station, and the piston end (52) and the exhaust end (51) tilt vertically upward.