A semi-automatic piston assembly machine

By designing a semi-automatic piston assembly machine and utilizing drive devices such as servo motors and linear motors, the machine achieves automated assembly of the piston rod, piston skirt, and piston pin, solving the problems of low efficiency and unstable quality in traditional manual assembly and improving assembly efficiency and accuracy.

CN224674278UActive Publication Date: 2026-08-25SHENZHEN ZHONGKE INTELLIGENT MFG CO LTD
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Patent Information

Application Number
CN202521934375.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-09
Publication Date
2026-08-25
Estimated Expiration
2035-09-09

AI Technical Summary

Technical Problem

Traditional piston assembly relies on manual operation, which is inefficient and results in inconsistent quality.

Method used

Design a semi-automatic piston assembly machine, including a support base plate, a turntable, an assembly base, a first picking component, a pressing component, a second picking component, and a pushing component. Utilize drive devices such as servo motors, linear motors, and cylinders to achieve automated assembly of the piston rod, piston skirt, and piston pin, and ensure assembly accuracy through positioning holes, positioning pins, and limit rings.

Benefits of technology

It improves the efficiency and quality of piston assembly, ensures the stability and precision of the assembly process, reduces manual intervention, and increases production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to piston assembly equipment technical field, concretely relates to a kind of semi-automatic piston assembly machine, including support base plate, carousel is rotatably installed on the support base plate and assembly pedestal is peripherally arrayed installed on the carousel, and first fetch component, compression assembly, second fetch component and push assembly are sequentially installed with the assembly pedestal being adapted along the carousel periphery;The assembly pedestal includes support seat fixedly installed on the carousel, positioning seat fixedly installed on the support seat and sliding block slidingly installed on the support seat;The first fetch component includes first placement support plate and second placement support plate installed on the support base plate and clamping jaw for clamping part, and first placement groove for placing part is formed on the first placement support plate.The utility model can semi-automatically assemble piston parts, greatly improve production efficiency and factory quality.
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Description

Technical Field

[0001] This utility model belongs to the technical field of piston assembly equipment, specifically relating to a semi-automatic piston assembly machine. Background Technology

[0002] The piston is a core component in mechanical equipment such as internal combustion engines and compressors. Its function is to convert energy or compress gas through reciprocating motion. It generally includes a piston rod, a piston skirt, and a piston pin that connects the two.

[0003] Piston assembly involves pressing the piston rod into the spring ring slot on the piston skirt and inserting the piston pin to obtain the piston. Traditional piston assembly is all done manually, using hand tools to assemble the spring ring into the spring ring slot on the piston wheel, which is inefficient and results in inconsistent quality. Utility Model Content

[0004] The purpose of this invention is to provide a semi-automatic piston assembly machine that can assemble piston parts in a semi-automatic manner, thereby greatly improving production efficiency and product quality.

[0005] The specific technical solution adopted by this utility model is as follows: A semi-automatic piston assembly machine includes a support base plate, a turntable rotatably mounted on the support base plate, and an assembly base arranged in a circumferential array on the turntable. A first picking component, a pressing component, a second picking component, and a pushing component are sequentially installed along the outer periphery of the turntable and adapted to the assembly base. The assembly base includes a support base fixedly installed on the turntable, a positioning base fixedly installed on the support base, and a slider slidably installed on the support base; The first picking component includes a first placement tray and a second placement tray mounted on the support base plate, as well as a gripper for holding the part. The first placement tray has a first placement groove for placing the part, and the second placement tray has a second placement groove rotatably mounted for adjusting the placement angle of the part. The pressing assembly includes an inner limiting ring and an outer limiting ring combined above the turntable. The inner limiting ring and the outer limiting ring are combined to form an arc-shaped slide that defines the position of the part. A pressure plate for pressing the part is provided above the slide.

[0006] As a preferred embodiment, the bottom of the turntable is provided with a servo motor and a reducer, the servo motor and the reducer are connected by a synchronous belt drive, and the turntable is fixedly installed on the power output end of the reducer.

[0007] As a preferred embodiment, the support base has positioning holes for positioning the parts, and positioning columns for supporting the parts are symmetrically fixed on both sides of the positioning holes. A limiting spring for resetting the slider is installed between the slider and the positioning base. A track rod for limiting the slider is also slidably connected to the top of the slider. The top surface of the positioning base also has a positioning groove for limiting the movement of the parts.

[0008] As a preferred embodiment, the first picking component further includes a first linear motor horizontally supported and mounted on the support base plate by a bracket. A T-shaped bracket cylinder is vertically fixed on the slide of the first linear motor. A first clamping cylinder for driving the gripper is fixedly mounted on the bottom of the T-shaped slide of the T-shaped bracket cylinder. The gripper is symmetrically mounted on the power output end of the first clamping cylinder.

[0009] As a preferred embodiment, the pressing assembly further includes a first push cylinder vertically mounted on the support base plate via a bracket, and the pressure plate is fixedly mounted on the power output end of the first push cylinder.

[0010] As a preferred embodiment, the second picking component includes an electromagnetic adsorbent for adsorbing parts, an electromagnetic adsorbent claw mounted at the bottom of the electromagnetic adsorbent, and a second linear motor for horizontally driving the electromagnetic adsorbent. A second push cylinder for vertically driving the electromagnetic adsorbent is fixedly mounted on the slide of the second linear motor. The electromagnetic adsorbent is fixedly mounted on the power output end of the second push cylinder. A conveyor plate for conveying parts is mounted on one side of the electromagnetic adsorbent claw.

[0011] As a preferred embodiment, the push-fit assembly includes a third linear motor fixedly mounted on the top surface of the support base and a third push cylinder fixedly mounted at the center of the turntable. The power output end of the third push cylinder faces one side of the assembly base. An L-shaped bracket is fixedly mounted on the slide of the third linear motor, and a push plate for assembling the push parts is fixedly mounted on the top of the L-shaped bracket.

[0012] As a preferred embodiment, the system also includes a shipping assembly, which comprises a fourth linear motor horizontally mounted on the support base via a bracket, a fourth push cylinder mounted on the slide of the fourth linear motor, and a second clamping cylinder fixedly mounted on the power output end of the fourth push cylinder. Clamping claws are symmetrically mounted on the power output end of the second clamping cylinder. A discharge plate adapted to the clamping claws for discharging material is also fixedly mounted on the support base.

[0013] As a preferred embodiment, the system also includes a detection component comprising a fifth push cylinder vertically fixed to the support base via a bracket, wherein a vertical support is fixedly mounted on the power output end of the fifth push cylinder, and a detection probe for resetting the assembly base is vertically fixedly mounted on the vertical support.

[0014] As a preferred embodiment, the system also includes a vibratory feeder, which is provided in two sets, respectively cooperating with the first pick-up component and the second pick-up component, for conveying parts.

[0015] The technical effects achieved by this utility model are as follows: This invention, by setting an assembly base and incorporating positioning holes and positioning pins, can accurately position the piston rod and piston skirt during assembly. The pressure plate then maintains stable assembly, ensuring precise combination. Additionally, a positioning groove on the top surface of the positioning base positions the piston pin. After the piston rod and piston skirt are assembled, a pusher plate inserts the piston rod into the space between them, completing the assembly. This semi-automatic piston assembly improves efficiency and ensures precision.

[0016] This invention uses an inner and outer limiting ring to form an arc-shaped slide to limit the position of the piston rod and piston skirt, ensuring accurate alignment when the pressure plate presses the piston rod and piston skirt together, thus ensuring accurate assembly of the piston rod and piston skirt. Simultaneously, a detection probe is provided to reset the positioning seat after the assembly base has been used, ensuring that the positioning seat remains in the designated position during repeated use, preventing positional deviations that could lead to assembly failure, thereby guaranteeing the precision of piston assembly. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model; Figure 2 This is a utility model Figure 1 Top view; Figure 3 This is a schematic diagram of the combined structure of the supporting substrate in an embodiment of this utility model; Figure 4 This is a schematic diagram of the combined structure of the supporting substrate and the assembly base in an embodiment of this utility model; Figure 5 This is a schematic diagram of the assembly base in an embodiment of this utility model; Figure 6 This is a schematic diagram of the structure of the first picking component in an embodiment of this utility model; Figure 7This is a schematic diagram of the pressing component in an embodiment of this utility model; Figure 8 This is a schematic diagram of the structure of the second picking component in an embodiment of this utility model; Figure 9 This is a schematic diagram of the push-fit component in an embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of the shipping component in an embodiment of this utility model; Figure 11 This is a schematic diagram of the detection component in an embodiment of the present invention; Figure 12 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0018] The attached diagram lists the components represented by each number as follows: 1. Supporting substrate; 11. Turntable; 12. Servo motor; 13. Reducer; 2. Assemble the base; 21. Support base; 22. Positioning base; 23. Positioning hole; 24. Positioning pin; 25. Slider; 26. Limiting spring; 27. Positioning groove; 28. Track rod; 3. First component to retrieve; 31. First placement tray; 32. First placement slot; 33. Second placement tray; 34. Second placement slot; 35. First linear motor; 36. First clamping cylinder; 37. Gripper; 38. T-shaped bracket cylinder; 4. Pressing assembly; 41. Inner limit ring; 42. Outer limit ring; 43. Pressure plate; 44. First push cylinder; 5. Second retrieval component; 51. Electromagnetic adsorber; 52. Electromagnetic adsorption claw; 53. Second linear motor; 54. Second push cylinder; 55. Conveyor tray; 6. Push-and-close components; 61. Push plate; 62. L-shaped bracket; 63. Third linear motor; 64. Third push cylinder; 7. Shipped components; 71. Second clamping cylinder; 72. Clamping claw; 73. Fourth linear motor; 74. Fourth pushing cylinder; 75. Discharge plate; 8. Detection components; 81. Detection probe; 82. Vertical support; 83. Fifth push cylinder; 9. Vibrating feeder. Detailed Implementation

[0019] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0020] like Figures 1-12 As shown, a semi-automatic piston assembly machine includes a support base plate 1, a turntable 11 rotatably mounted on the support base plate 1, and an assembly base 2 circumferentially arrayed on the turntable 11. A first picking component 3, a pressing component 4, a second picking component 5, and a pushing component 6 are sequentially installed along the outer periphery of the turntable 11 and adapted to the assembly base 2. The piston skirt is placed on the assembly base 2 using the first picking component 3. Then, the turntable 11 rotates to rotate this assembly base 2 to the manual window, where the piston rod is placed inside the piston skirt manually. The turntable 11 continues to rotate, rotating the two components into the pressing component 4 for pressing. Then, the turntable 11 continues to rotate, transferring the pressed components to the second picking component 5, where the piston pin is placed on the assembly base 2. Finally, the pushing component 6 is used to combine the three components, thereby completing the piston assembly.

[0021] See attached document Figure 3 The bottom of the turntable 11 is equipped with a servo motor 12 and a reducer 13. The servo motor 12 and the reducer 13 are connected by a synchronous belt drive. The turntable 11 is fixedly installed on the power output end of the reducer 13, so that the servo motor 12 can drive the turntable 11 to rotate according to a predetermined program through the reducer 13, so as to gradually assemble the piston pin, piston skirt and piston rod.

[0022] See attached document Figure 4 In this embodiment, the assembly base 2 has eight groups arranged in a circular array on the turntable 11; of course, in other embodiments, the specific number of groups can be set as needed.

[0023] See attached document Figure 5The assembly base 2 includes a support base 21 fixedly mounted on the turntable 11, a positioning base 22 fixedly mounted on the support base 21, and a slider 25 slidably mounted on the support base 21. The support base 21 has a positioning hole 23 for positioning the piston skirt. Positioning pins 24 for supporting the piston rod are symmetrically fixedly mounted on both sides of the positioning hole 23. A limiting spring 26 for resetting the slider 25 is installed between the slider 25 and the positioning base 22. A positioning groove 27 for limiting the movement of the piston pin is also provided on the top surface of the positioning base 22. A track rod 28 for limiting the slider 25 is slidably connected to the top of the slider 25. The slider 25 can push the piston pin to assemble it with the piston skirt and piston rod, and then the limiting spring 26 is used to reset it, thus ensuring the accuracy of the assembly position of each component.

[0024] See attached document Figure 1 and Figure 6 The first picking component 3 includes a first placement tray 31 and a second placement tray 33 mounted on the support base plate 1, and a gripper 37 for clamping the parts. The first placement tray 31 has a first placement groove 32 for placing the piston skirt, while the second placement tray 33 has a second placement groove 34 rotatably mounted for placing the piston skirt to be assembled. The placement angle of the parts can be adjusted as needed to place the connecting hole in the accurate position so that the piston rod can be inserted.

[0025] Furthermore, in order to drive the gripper 37, the first picking component 3 also includes a first linear motor 35 horizontally supported and mounted on the support base plate 1 by a bracket. At the same time, a T-shaped bracket cylinder 38 is vertically fixed on the slide of the first linear motor 35. A first clamping cylinder 36 for driving the gripper 37 is fixedly mounted at the bottom of the T-shaped slide of the T-shaped bracket cylinder 38, and the gripper 37 is symmetrically mounted on the power output end of the first clamping cylinder 36. The first linear motor 35 and the T-shaped bracket cylinder 38 can cooperate to move the first clamping cylinder 36 in the horizontal and vertical directions, and the first clamping cylinder 36 can drive the gripper 37 to clamp the piston skirt.

[0026] It should be noted that in this embodiment, two sets of first clamping cylinders 36 and grippers 37 are provided, which cooperate with the first placement tray 31 and the second placement tray 33 to alternately transport the piston skirt. At the same time, in cooperation with the first picking component 3, a set of vibrating feeders 9 is also provided to transport the piston skirt into the first placement tray 31 to ensure sufficient material transport.

[0027] See attached document Figure 12 A manual window is provided between the first picking component 3 and the pressing component 4, which is used to manually place the piston rod inside the piston skirt to facilitate pressing the two together.

[0028] See attached document Figure 1 and Figure 7 The pressing assembly 4 includes an inner limiting ring 41 and an outer limiting ring 42 combined and disposed above the turntable 11. The inner limiting ring 41 and the outer limiting ring 42 are combined with an arc-shaped slide for the piston rod and the piston skirt, so that the two can be stably maintained in relative positions before being pressed. A pressure plate 43 for pressing the parts is disposed above the slide. At the same time, a first pushing cylinder 44 is vertically mounted on the support base plate 1 through a bracket, and the pressure plate 43 is fixedly mounted on the power output end of the first pushing cylinder 44, so that the piston rod and the piston skirt can be pressed by pushing the pressure plate 43 with the first pushing cylinder 44.

[0029] See attached document Figure 1 and Figure 8 The second picking component 5 includes an electromagnetic adsorbent 51 for adsorbing parts, an electromagnetic adsorbent claw 52 installed at the bottom of the electromagnetic adsorbent 51, and a second linear motor 53 for horizontally driving the electromagnetic adsorbent 51. A second push cylinder 54 for vertically driving the electromagnetic adsorbent 51 is fixedly installed on the slide of the second linear motor 53, and the electromagnetic adsorbent 51 is fixedly installed on the power output end of the second push cylinder 54. The piston pin rod can be magnetically adsorbed by the cooperation of the second linear motor 53 and the second push cylinder 54 and placed inside the positioning groove 27, and then combined with the piston rod and piston skirt.

[0030] It should be noted that in this embodiment, a set of vibrating feeders 9 are also provided in conjunction with the second picking component 5. At the same time, a conveying plate 55 for conveying parts is installed on one side of the electromagnetic adsorption claw 52. During use, the two can be used together to convey the piston pin rod, and then the electromagnetic adsorption claw 52 can pick it up and place it inside the positioning groove 27.

[0031] See attached document Figure 1 and Figure 9The push assembly 6 includes a third linear motor 63 fixedly mounted on the top surface of the support base 1 and a third push cylinder 64 fixedly mounted at the center of the turntable 11. By facing the power output end of the third push cylinder 64 toward one side of the assembly base 2, and with an L-shaped bracket 62 fixedly mounted on the slide of the third linear motor 63 and a push plate 61 fixedly mounted on the top of the L-shaped bracket 62, the third push cylinder 64 and the third linear motor 63 can work synchronously at both ends of the assembly base 2. The power output end of the third push cylinder 64 abuts against the track rod 28 to prevent displacement and ensure the stability of the piston rod and piston skirt assembly. At the same time, the third linear motor 63 pushes the slider 25 along the track rod 28 via the push plate 61, thereby pushing the piston pin to assemble it with the piston skirt and piston rod. After losing the limit of the push plate 61, the limit spring 26 is used to reset.

[0032] See attached document Figure 1 and Figure 10 In this embodiment, a shipping component 7 is also provided, which includes a fourth linear motor 73 horizontally mounted on a support base plate 1 via a bracket, a fourth push cylinder 74 mounted on a slide of the fourth linear motor 73, and a second clamping cylinder 71 fixedly mounted on the power output end of the fourth push cylinder 74. By symmetrically mounting clamping claws 72 on the power output end of the second clamping cylinder 71, and by fixing a discharge plate 75 adapted to the clamping claws 72 for discharging material on the support base plate 1, the fourth push cylinder 74 and the fourth linear motor 73 can cooperate to push the second clamping cylinder 71 through the clamping claws 72 to clamp the assembled piston and place it on the discharge plate 75, which then slides out of the device along the slide.

[0033] See attached document Figure 1 and Figure 11 To ensure the stability and accuracy of assembly, this embodiment also includes a detection component 8, which includes a fifth push cylinder 83 vertically fixed to the support base plate 1 via a bracket. A vertical support 82 is fixedly installed at the power output end of the fifth push cylinder 83, and a detection probe 81 for resetting detection is vertically fixedly installed on the vertical support 82. After the piston assembled on the assembly base 2 is removed, it is rotated to below the detection probe 81, and the fifth push cylinder 83 can push the detection probe 81 into the positioning hole 23 to detect its position and depth to see if it meets the production requirements. If it does, the production cycle continues; if it does not meet the requirements, an alarm is issued, and technicians maintain it to restore it to normal.

[0034] The working principle of this utility model is as follows: In use, firstly, the piston rod is fed by one of the sets of vibrating feeders 9, and the piston skirt is placed on the assembly base 2 by the first picking component 3. Then, the turntable 11 rotates to rotate this set of assembly base 2 to the manual window, and the piston rod is placed in the piston skirt by the manual. Then, the turntable 11 continues to rotate to rotate the two into the pressing component 4 for pressing. Then, the turntable 11 continues to rotate to transfer the pressed component to the second picking component 5, where the piston pin is placed on the assembly base 2. Then, the pushing component 6 is used to combine the three to complete the piston assembly.

[0035] Next, the assembled piston is rotated to the delivery component 7 area by the turntable 11. The second clamping cylinder 71 is driven by the fourth push cylinder 74 and the fourth linear motor 73 to clamp the assembled piston through the clamping claw 72 and place it on the discharge plate 75, which then slides out of the equipment along the slide rail. Then, the assembly base 2 after the piston has been taken out is rotated to the area below the detection probe 81 by the turntable 11. The detection probe 81 can be pushed into the positioning hole 23 by the fifth push cylinder 83 to check its position and depth to see if it meets the production requirements. If it does, the production cycle continues. If it does not meet the requirements, an alarm is issued and technicians maintain it to restore it to normal. This process is repeated to assemble the piston parts.

[0036] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A semi-automatic piston assembly machine, comprising a support base plate (1), characterized in that: A turntable (11) rotatably mounted on the support base plate (1) and an assembly base (2) circumferentially mounted on the turntable (11) are provided. A first picking component (3), a pressing component (4), a second picking component (5), and a pushing component (6) are sequentially installed along the outer periphery of the turntable (11) and the assembly base (2) to be adapted to each other. The assembly base (2) includes a support base (21) fixedly installed on the turntable (11), a positioning base (22) fixedly installed on the support base (21), and a slider (25) slidably installed on the support base (21). The first picking component (3) includes a first placement tray (31) and a second placement tray (33) mounted on the support base plate (1) and a gripper (37) for clamping the part. The first placement tray (31) has a first placement groove (32) for placing the part, and the second placement tray (33) has a second placement groove (34) for adjusting the placement angle of the part. The pressing assembly (4) includes an inner limiting ring (41) and an outer limiting ring (42) combined above the turntable (11). The inner limiting ring (41) and the outer limiting ring (42) are combined to form an arc-shaped slide that defines the position of the part. A pressure plate (43) for pressing the part is provided above the slide.

2. The semi-automatic piston assembly machine according to claim 1, characterized in that: The turntable (11) is equipped with a servo motor (12) and a reducer (13) at its bottom. The servo motor (12) and the reducer (13) are connected by a synchronous belt drive. The turntable (11) is fixedly installed at the power output end of the reducer (13).

3. A semi-automatic piston assembly machine according to claim 1, characterized in that: The support base (21) is provided with a positioning hole (23) for positioning the part. Positioning columns (24) for supporting the part are symmetrically fixed on both sides of the positioning hole (23). A limiting spring (26) for resetting the slider (25) is installed between the slider (25) and the positioning base (22). A track rod (28) for limiting the slider (25) is also slidably connected to the top of the slider (25). A positioning groove (27) for limiting the movement of the part is also provided on the top surface of the positioning base (22).

4. A semi-automatic piston assembly machine according to claim 1, characterized in that: The first picking component (3) further includes a first linear motor (35) horizontally supported and mounted on the support base plate (1) by a bracket. A T-shaped bracket cylinder (38) is vertically fixed on the slide of the first linear motor (35). A first clamping cylinder (36) for driving the gripper (37) is fixedly mounted on the bottom of the T-shaped slide of the T-shaped bracket cylinder (38). The gripper (37) is symmetrically mounted on the power output end of the first clamping cylinder (36).

5. A semi-automatic piston assembly machine according to claim 1, characterized in that: The pressing assembly (4) further includes a first push cylinder (44) that is vertically mounted on the support base plate (1) via a bracket, and the pressure plate (43) is fixedly mounted on the power output end of the first push cylinder (44).

6. A semi-automatic piston assembly machine according to claim 1, characterized in that: The second picking component (5) includes an electromagnetic adsorbent (51) for adsorbing parts, an electromagnetic adsorbent claw (52) installed at the bottom of the electromagnetic adsorbent (51), and a second linear motor (53) for horizontally driving the electromagnetic adsorbent (51). A second push cylinder (54) for vertically driving the electromagnetic adsorbent (51) is fixedly installed on the slide of the second linear motor (53). The electromagnetic adsorbent (51) is fixedly installed on the power output end of the second push cylinder (54). A conveyor plate (55) for conveying parts is installed on one side of the electromagnetic adsorbent claw (52).

7. A semi-automatic piston assembly machine according to claim 1, characterized in that: The push assembly (6) includes a third linear motor (63) fixedly installed on the top surface of the support base plate (1) and a third push cylinder (64) fixedly installed at the center of the turntable (11). The power output end of the third push cylinder (64) faces the side of the assembly base (2). An L-shaped bracket (62) is fixedly installed on the slide of the third linear motor (63). A push plate (61) for assembling push parts is fixedly installed at the top of the L-shaped bracket (62).

8. A semi-automatic piston assembly machine according to claim 1, characterized in that: It also includes a shipping component (7), which includes a fourth linear motor (73) horizontally mounted on the support base plate (1) via a bracket, a fourth push cylinder (74) mounted on the slide of the fourth linear motor (73), and a second clamping cylinder (71) fixedly mounted on the power output end of the fourth push cylinder (74). Clamping claws (72) are symmetrically mounted on the power output end of the second clamping cylinder (71). A discharge plate (75) adapted to the clamping claws (72) for discharging material is also fixedly mounted on the support base plate (1).

9. A semi-automatic piston assembly machine according to claim 1, characterized in that: It also includes a detection component (8), which includes a fifth push cylinder (83) that is vertically fixed on the support base plate (1) by a bracket. A vertical support (82) is fixedly installed on the power output end of the fifth push cylinder (83). A detection probe (81) for resetting the assembly base (2) is vertically fixedly installed on the vertical support (82).

10. A semi-automatic piston assembly machine according to claim 1, characterized in that: It also includes a vibratory feeder (9), which is provided in two sets, respectively cooperating with the first picking component (3) and the second picking component (5) for conveying parts.