A plunger seat feeding mechanism

By designing the collaborative operation of the storage tray, transfer mechanism, detection mechanism, and clamping and positioning mechanism, the problem of low feeding efficiency and accuracy of the plunger seat was solved, realizing efficient and accurate feeding and stable assembly of the plunger seat, and improving product quality and consistency.

CN224677259UActive Publication Date: 2026-08-25CHONGQING HEXIN INTELLIGENT EQUIPMENT CO LTD
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Patent Information

Application Number
CN202522108924.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-30
Publication Date
2026-08-25
Estimated Expiration
2035-09-30

AI Technical Summary

Technical Problem

The existing plunger seat feeding method mainly relies on manual operation or simple mechanized conveying, which leads to low efficiency, low precision, and easy occurrence of workpiece omission, incorrect posture or collision damage, affecting product consistency and quality stability.

Method used

A plunger seat feeding mechanism was designed, which includes a storage tray, a transfer mechanism, a detection mechanism, and a clamping and positioning mechanism. An angular deviation is detected by an image acquisition device, the angle is adjusted by a rotation drive component, and the X, Y, and Z axis drive mechanism and clamping and positioning pins are used to achieve precise positioning and fixation, ensuring the rapid transfer and accurate assembly of the plunger seat between different workstations.

Benefits of technology

It improves the efficiency and accuracy of plunger seat feeding, reduces manual intervention, avoids assembly problems caused by angular deviation, ensures product quality and stability, and achieves accurate positioning of the plunger seat, which facilitates subsequent processing or assembly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to plunger pump assembly technical field provides a plunger seat feeding mechanism, including storage tray, removes the mechanism, placing mechanism, detection mechanism and clamping positioning mechanism, the placing mechanism is equipped below the detection mechanism, the placing mechanism includes rotary drive assembly, the rotary drive assembly top is plunger seat placement position, the rotary drive assembly can drive plunger seat rotation, the storage tray is equipped in one side of the placing mechanism, the clamping positioning mechanism is equipped in the other side of the placing mechanism, the mechanism is removed for moving plunger seat from the storage tray to the placing mechanism and from the placing mechanism to the clamping positioning mechanism, the clamping positioning mechanism includes clamping assembly and a plurality of positioning pins, a plurality of positioning pins are equipped in the clamping assembly, the plunger seat includes a plurality of mounting holes, and a plurality of positioning pins are correspondingly arranged with a plurality of mounting holes.
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Description

Technical Field

[0001] This utility model belongs to the field of plunger pump assembly technology, and in particular relates to a plunger seat feeding mechanism. Background Technology

[0002] Currently, the plunger seat, as the core basic component of a plunger pump, directly determines the overall performance and operational reliability of the pump through its assembly precision. In automated assembly lines, achieving precise and efficient feeding of the plunger seat is crucial for ensuring the quality of subsequent assembly. Currently, common feeding methods still rely on manual operation or simple mechanized conveying. Manual feeding is labor-intensive, inefficient, and prone to workpiece loss, incorrect positioning, or damage due to operator fatigue, severely impacting product consistency and quality stability. While existing semi-automated equipment, such as traditional conveyor belts or simple robotic arms, can partially replace manual labor, they generally lack effective positioning capabilities. This allows workpieces with angular deviations to enter the workstation, causing difficulties in aligning precision components such as plungers and springs during subsequent assembly, and even leading to interference and sealing failures.

[0003] To solve the above-mentioned technical problems, this utility model designs a plunger seat feeding mechanism. Utility Model Content

[0004] This utility model provides a plunger seat feeding mechanism, which aims to solve the problem of how to improve the feeding efficiency and feeding accuracy of the plunger seat.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plunger seat feeding mechanism, comprising a storage tray, a transfer mechanism, a placement mechanism, a detection mechanism, and a clamping and positioning mechanism. The placement mechanism is located below the detection mechanism and includes a rotary drive assembly. The top of the rotary drive assembly is a plunger seat placement position, and the rotary drive assembly can drive the plunger seat to rotate. The storage tray is located on one side of the placement mechanism, and the clamping and positioning mechanism is located on the other side of the placement mechanism. The transfer mechanism is used to move the plunger seat from the storage tray to the placement mechanism and from the placement mechanism to the clamping and positioning mechanism. The clamping and positioning mechanism includes a clamping assembly and multiple positioning pins. The clamping assembly is used to clamp and fix the plunger seat, and the multiple positioning pins are located on the clamping assembly. The plunger seat includes multiple mounting holes, and the multiple positioning pins are correspondingly arranged with the multiple mounting holes.

[0006] Based on the above technical solution, the transfer mechanism includes an X-axis drive mechanism, a Y-axis drive mechanism, a Z-axis drive mechanism, and a moving head. The Y-axis drive mechanism is located on the X-axis drive mechanism, the Z-axis drive mechanism is located on the Y-axis drive mechanism, and the moving head is located at the end of the Z-axis drive mechanism.

[0007] Furthermore, the moving head includes a first arm and a second arm arranged opposite to each other, and the Z-axis drive mechanism has a slide rail at its end, allowing the first arm and the second arm to move closer or further apart relative to each other along the slide rail.

[0008] Based on the above technical solution, the placement mechanism further includes a base, and the rotation drive assembly includes a drive motor and a rotating seat. The drive motor is located on the base, the rotating seat is connected to the drive motor, and the top of the rotating seat is the placement position for the plunger seat.

[0009] Based on the above technical solution, the detection mechanism includes an image acquisition device, which is located on the Y-axis drive mechanism.

[0010] Based on the above technical solution, the clamping assembly includes a base plate, a driving part, a fixed part, and a movable part. The fixed part and the movable part are disposed on the base plate. The positioning pin is disposed on the base plate between the fixed part and the movable part. The driving part is disposed on the side of the fixed part away from the movable part. The driving part can drive the movable part to move in a direction close to or away from the fixed part to clamp or release the plunger seat.

[0011] Furthermore, the fixed part is provided with a through hole, the movable part is provided with a movable shaft, the movable shaft passes through the through hole and protrudes from the fixed part, the driving part includes a piston, the end of the piston is correspondingly provided with the end of the movable shaft, and an elastic element is provided between the base plate and the movable part along the movement direction of the movable part.

[0012] Furthermore, the movable part has a first recessed hole on its side wall away from the fixed part, the bottom plate has an upwardly extending part, the extension part has a second recessed hole, the first recessed hole and the second recessed hole are arranged correspondingly, one end of the elastic member is disposed in the first recessed hole, and the other end of the elastic member is disposed in the second recessed hole.

[0013] Furthermore, the fixed part has a first groove on the side wall near the movable part, and the movable part has a second groove on the side wall near the fixed part. The first groove and the second groove are correspondingly arranged to jointly enclose the clamping space.

[0014] Based on the above technical solution, the clamping and positioning mechanism also includes a sensor, the end of which is positioned toward the clamping space to detect whether a plunger seat exists in the clamping space.

[0015] Compared with related technologies, the beneficial effects of this utility model are as follows: This invention uses a storage tray to store plunger seats to be loaded. A transfer mechanism picks up the plunger seats from the storage tray and moves them to the plunger seat placement position of the placement mechanism. The placement angle of the plunger seats is detected by a detection mechanism above. If there is a deviation between the placement angle and the standard angle, a rotation drive assembly drives the plunger seats to rotate to reach the standard angle. Then, the transfer mechanism moves the storage tray to the clamping and positioning mechanism, where multiple mounting holes of the plunger seats are aligned with multiple positioning pins. The clamping assembly clamps and fixes the plunger seats for subsequent assembly.

[0016] Batch loading via storage trays reduces the frequency of manual intervention. The flexibility of the transfer mechanism ensures rapid transfer of plunger seats between different workstations. The inspection mechanism effectively avoids assembly problems caused by angular deviations, further improving product quality. The clamping and positioning mechanism achieves accurate positioning of the plunger seats through the precise cooperation of multiple positioning pins and mounting holes, facilitating subsequent processing or assembly. The plunger seat loading mechanism ensures the stability and accuracy of the plunger seats during the loading process through the coordinated work of multiple functional modules. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be derived from the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a plunger seat feeding mechanism provided by this utility model; Figure 2 This is a structural schematic diagram of the Z-axis drive mechanism, moving head, and clamping and positioning mechanism provided by this utility model; Figure 3 This is a schematic diagram of the placement mechanism provided by this utility model; Figure 4 This is a schematic diagram of the clamping and positioning mechanism provided by this utility model; Figure 5 This is a top view of the clamping and positioning mechanism provided by this utility model; Figure 6 This utility model provides Figure 5 The diagram shows a cross-sectional structure along the AA direction.

[0019] In the diagram: 11. Storage tray; 12. Transfer mechanism; 121. X-axis drive mechanism; 122. Y-axis drive mechanism; 123. Z-axis drive mechanism; 1231. Slide rail; 124. Moving head; 1241. First arm; 1242. Second arm; 13. Placement mechanism; 131. Rotary drive assembly; 132. Plunger seat placement position; 133. Base; 134. Drive motor; 135. Rotary seat; 136. Support leg; 137. Limiting plate; 138. 14. Coupling; 15. Detection mechanism; 16. Clamping and positioning mechanism; 17. Clamping assembly; 18. Base plate; 19. Drive unit; 10. Fixing unit; 10. Movable part; 11. Through hole; 12. Movable shaft; 13. Piston; 14. Elastic element; 15. Extension part; 16. Positioning pin; 17. First groove; 18. Second groove; 19. Sensor; 10. Piston seat; 11. Mounting hole. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and examples: The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Combination Figure 1-3As shown, this embodiment of the present disclosure provides a plunger seat feeding mechanism, including a storage tray 11, a transfer mechanism 12, a placement mechanism 13, a detection mechanism 14, and a clamping and positioning mechanism 15. The placement mechanism 13 is located below the detection mechanism 14. The placement mechanism 13 includes a rotary drive assembly 131, the top of which is a plunger seat placement position 132. The rotary drive assembly 131 can drive the plunger seat 16 to rotate. The storage tray 11 is located on one side of the placement mechanism 13. The clamping and positioning mechanism 15... Located on the other side of the placement mechanism 13, the transfer mechanism 12 is used to move the plunger seat 16 from the storage tray 11 to the placement mechanism 13 and from the placement mechanism 13 to the clamping and positioning mechanism 15. The clamping and positioning mechanism 15 includes a clamping component 151 and a plurality of positioning pins 152. The clamping component 151 is used to clamp and fix the plunger seat 16. The plurality of positioning pins 152 are provided on the clamping component 151. The plunger seat 16 includes a plurality of mounting holes 161. The plurality of positioning pins 152 are correspondingly provided with the plurality of mounting holes 161.

[0024] Using the plunger seat feeding mechanism described in this embodiment, a storage tray 11 is set up to store the plunger seats 16 to be fed. The transfer mechanism 12 picks up the plunger seats 16 in the storage tray 11 and moves them to the plunger seat placement position 132 of the placement mechanism 13. The placement angle of the plunger seat 16 is detected by the detection mechanism 14 above. If there is a deviation between the placement angle and the standard angle, the rotation drive assembly 131 drives the plunger seat 16 to rotate to reach the standard angle. Then, the transfer mechanism 12 moves the storage tray 11 to the clamping and positioning mechanism 15, and places the multiple mounting holes 161 of the plunger seat 16 and the multiple positioning pins 152 correspondingly. The clamping assembly 151 clamps and fixes the plunger seat 16 for subsequent assembly.

[0025] Batch loading via storage tray 11 reduces the frequency of manual intervention. The flexibility of transfer mechanism 12 ensures rapid transfer of plunger seat 16 between different workstations. Detection mechanism 14 effectively avoids assembly problems caused by angular deviations, further improving product quality. Clamping and positioning mechanism 15 achieves accurate positioning of plunger seat 16 through the precise cooperation of multiple positioning pins 152 and mounting holes 161, facilitating subsequent processing or assembly. Plunger seat 16 loading mechanism ensures the stability and accuracy of plunger seat 16 during the loading process through the coordinated work of multiple functional modules.

[0026] Based on the above technical solutions, such as Figure 1As shown, the transfer mechanism 12 includes an X-axis drive mechanism 121, a Y-axis drive mechanism 122, a Z-axis drive mechanism 123, and a moving head 124. The Y-axis drive mechanism 122 is mounted on the X-axis drive mechanism 121, the Z-axis drive mechanism 123 is mounted on the Y-axis drive mechanism 122, and the moving head 124 is located at the end of the Z-axis drive mechanism 123.

[0027] Specifically, the X-axis drive mechanism 121, Y-axis drive mechanism 122, and Z-axis drive mechanism 123 can drive the moving head 124 to move along the X, Y, and Z directions, thereby achieving precise transfer of the plunger seat 16 between the storage tray 11, the placement mechanism 13, and the clamping and positioning mechanism 15. The X-axis drive mechanism 121, Y-axis drive mechanism 122, and Z-axis drive mechanism 123 all employ high-precision servo motors in conjunction with the slide rail 1231 to ensure stability and positioning accuracy during the transfer process.

[0028] Optionally, there are multiple Z-axis drive mechanisms 123, which are sequentially arranged on the Y-axis drive mechanism 122 along the Y-axis direction. The multiple Z-axis drive mechanisms 123 are provided with multiple moving heads 124, and the multiple moving heads 124 can move multiple plunger seats 16 simultaneously.

[0029] Furthermore, such as Figure 2 As shown, the moving head 124 includes a first arm 1241 and a second arm 1242 arranged opposite to each other. The Z-axis drive mechanism 123 is provided with a slide rail 1231 at its end. The first arm 1241 and the second arm 1242 can move closer or further apart along the slide rail 1231.

[0030] Specifically, the plunger seat 16 has a central hole. When the first arm 1241 and the second arm 1242 are in close contact, the total diameter of the ends of the first arm 1241 and the second arm 1242 is less than or equal to the diameter of the central hole. When the first arm 1241 and the second arm 1242 are close together, they are inserted into the central hole. When the first arm 1241 and the second arm 1242 are relatively far apart, they are supported within the central hole to drive the plunger seat 16 to move. The moving head 124 uses the cooperation of the first arm 1241 and the second arm 1242 to perform an internal support extraction of the plunger seat 16, avoiding damage to the surface of the plunger seat 16 that may be caused by traditional clamping methods. It also avoids interference with surrounding components when transferring to another workstation, ensuring the firmness and stability of the plunger seat 16 during the transfer process, while improving the efficiency and accuracy of the transfer. In addition, the slide rail 1231 makes the movement of the first arm 1241 and the second arm 1242 smoother, reducing errors caused by mechanical vibration.

[0031] Optionally, a position sensor 153 is provided on the slide rail 1231 to monitor the relative position of the first arm 1241 and the second arm 1242 in real time. Based on the data fed back by the position sensor 153, the control system can accurately adjust the movement range of the first arm 1241 and the second arm 1242 to ensure the accuracy and consistency of each internal support operation.

[0032] Based on the above technical solutions, such as Figure 3 As shown, the placement mechanism 13 also includes a base 133, and the rotation drive assembly 131 includes a drive motor 134 and a rotating seat 135. The drive motor 134 is located on the base 133, and the rotating seat 135 is connected to the drive motor 134. The top of the rotating seat 135 is the plunger seat placement position 132.

[0033] Specifically, such as Figure 3 As shown, the base 133 is provided with multiple support legs 136, and the tops of the multiple support legs 136 jointly support a limiting plate 137. The limiting plate 137 is provided with a through hole 1515. The rotating seat 135 is provided on the limiting plate 137. The rotating seat 135 is provided with a rotating shaft. The rotating shaft passes through the through hole 1515 and extends toward the drive motor 134. The rotating shaft and the drive motor 134 are connected by a coupling 138. The top of the rotating seat 135 is provided with a positioning pin 152.

[0034] The drive motor 134 drives the rotating shaft to rotate via the coupling 138, thereby driving the rotating seat 135 and the plunger seat 16 at its top to rotate. The design of the limiting plate 137 not only supports the rotating seat 135, but also guides and limits the movement of the rotating shaft through the through hole 1515, ensuring the smoothness and accuracy of the rotation process. In addition, a positioning pin 152 is provided at the top of the rotating seat 135. When the plunger seat 16 is placed in the plunger seat placement position 132, the positioning pin 152 is inserted into the middle hole of the plunger seat 16 to further fix the plunger seat 16 and prevent the plunger seat 16 from shifting or shaking during rotation.

[0035] Optionally, there are multiple rotary drive components 131, which are distributed in a regular manner on the base 133, and can drive multiple plunger seats 16 to rotate at the same time, thereby improving the feeding efficiency.

[0036] Based on the above technical solution, the detection mechanism 14 includes an image acquisition device, which is located on the Y-axis drive mechanism 122.

[0037] Specifically, the image acquisition device is a camera, the Y-axis drive mechanism 122 has a fixed plate that extends downwards, the camera is located on one side of the fixed plate, and the Z-axis drive mechanism 123 is located on the other side of the fixed plate. Preferably, the camera is located on the side of the fixed plate closer to the storage tray 11. By setting the camera to acquire images of the plunger seat 16 placed on the placement mechanism 13, it is determined whether the placement angle of the plunger seat 16 reaches the standard angle. If the placement angle of the plunger seat 16 does not reach the standard angle, it is adjusted by rotating the component, and the camera acquires images again until the placement angle reaches the standard angle, and then the next step of transfer is performed.

[0038] Optionally, there are multiple image acquisition devices, and the multiple image acquisition devices are correspondingly arranged with multiple plunger seats 16 on the placement mechanism 13, so as to perform image acquisition on the multiple plunger seats 16 respectively.

[0039] Based on the above technical solutions, such as Figure 4 As shown, the clamping assembly 151 includes a base plate 1511, a driving part 1512, a fixing part 1513, and a movable part 1514. The fixing part 1513 and the movable part 1514 are disposed on the base plate 1511. The positioning pin 152 is disposed on the base plate 1511 between the fixing part 1513 and the movable part 1514. The driving part 1512 is disposed on the side of the fixing part 1513 away from the movable part 1514. The driving part 1512 can drive the movable part 1514 to move in a direction close to or away from the fixing part 1513 to clamp or release the plunger seat 16.

[0040] Furthermore, such as Figure 4 As shown, the fixed part 1513 is provided with a through hole 1515, the movable part 1514 is provided with a movable shaft 1516, the movable shaft 1516 passes through the through hole 1515 and protrudes from the fixed part 1513, the driving part 1512 includes a piston 1517, the end of the piston 1517 is correspondingly provided with the end of the movable shaft 1516, and an elastic element 1518 is provided between the base plate 1511 and the movable part 1514 along the movement direction of the movable part 1514.

[0041] When the transfer mechanism 12 moves the plunger seat 16 from the placement mechanism 13 to the clamping assembly 151, the piston 1517 moves toward the movable shaft 1516, driving the movable shaft 1516 to move the movable part 1514 away from the fixed part 1513, thereby increasing the distance between the fixed part 1513 and the movable part 1514, so that the transfer mechanism 12 can place the plunger seat 16 between the fixed part 1513 and the movable part 1514. At this time, the elastic member 1518 is in a compressed state. Then, the piston 1517 moves away from the movable shaft 1516, and under the action of the restoring force, the elastic member 1518 pushes the movable part 1514 toward the fixed part 1513 to clamp the plunger seat 16 between the fixed part 1513 and the movable part 1514, fixing the position of the plunger seat 16.

[0042] Furthermore, such as Figure 5 and Figure 6 As shown, the movable part 1514 has a first recessed hole on its side wall away from the fixed part 1513, the base plate 1511 has an upwardly extending extension 1519, the extension 1519 has a second recessed hole, the first recessed hole and the second recessed hole are arranged correspondingly, one end of the elastic member 1518 is disposed in the first recessed hole, and the other end of the elastic member 1518 is disposed in the second recessed hole.

[0043] Specifically, the first and second recesses limit the elastic element 1518, so that when the movable part 1514 moves relative to the base plate 1511, the elastic element 1518 extends and retracts along the movement direction of the movable part 1514. The extension 1519 is provided on the side of the base plate 1511 near the movable part 1514, and when the driving part 1512 drives the movable part 1514 to move, it can maximize the limitation of the movement of the movable part 1514 and prevent the movable part 1514 from moving excessively.

[0044] Furthermore, such as Figure 4 As shown, the fixed part 1513 has a first groove 1521 on the side wall near the movable part 1514, and the movable part 1514 has a second groove 1522 on the side wall near the fixed part 1513. The first groove 1521 and the second groove 1522 are arranged correspondingly to form a clamping space.

[0045] The first groove 1521 and the second groove 1522 cooperate to further limit the position of the plunger seat 16 and firmly clamp it, preventing displacement during subsequent processing or assembly. The size of the clamping space can be adjusted according to the specific specifications of the plunger seat 16 to accommodate different models of plunger seats 16, enhancing versatility.

[0046] Furthermore, the drive unit 1512 also includes a limit switch for controlling the movement range of the movable unit 1514. When the movable unit 1514 approaches or moves away from the fixed unit 1513 to a preset position, the limit switch is triggered and stops the operation of the drive unit 1512 to prevent damage to the clamping and positioning mechanism 15 due to excessive movement.

[0047] Preferably, the first groove 1521 is a V-shaped groove and the second groove 1522 is a U-shaped groove. The side wall of the U-shaped groove facing the V-shaped groove is provided with an elastic pressure head. The elastic pressure head and the V-shaped groove cooperate to clamp and fix the plunger seat 16, thereby achieving three-contact point fixation of the plunger seat 16, which can effectively improve the stability and accuracy of clamping.

[0048] Optionally, there are multiple first grooves 1521 and multiple second grooves 1522, which enclose multiple clamping spaces and can clamp and position multiple plunger seats 16.

[0049] Based on the above technical solutions, such as Figure 4 and Figure 6 As shown, the clamping and positioning mechanism 15 also includes a sensor 153, the end of which is positioned toward the clamping space to detect whether a plunger seat 16 exists in the clamping space.

[0050] Preferably, the sensor 153 is a photoelectric sensor 153, which can work stably in complex environments. The photoelectric sensor 153 accurately determines whether there is a plunger seat 16 in the clamping space by the change of photoelectric signal between the transmitting end and the receiving end, and is not affected by external light interference, ensuring the reliability of the detection results.

[0051] Optionally, there may be multiple sensors 153, with each sensor 153 corresponding to a different clamping space.

[0052] The present invention has been described above by way of example, but the present invention is not limited to the specific embodiments described above. Any modifications or variations made based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A plunger seat feeding mechanism, characterized in that, The device includes a storage tray (11), a transfer mechanism (12), a placement mechanism (13), a detection mechanism (14), and a clamping and positioning mechanism (15). The placement mechanism (13) is located below the detection mechanism (14). The placement mechanism (13) includes a rotary drive assembly (131), the top of which is a plunger seat placement position (132). The rotary drive assembly (131) can drive the plunger seat (16) to rotate. The storage tray (11) is located on one side of the placement mechanism (13), and the clamping and positioning mechanism (15) is located on the other side of the placement mechanism (13). On the other side, the transfer mechanism (12) is used to move the plunger seat (16) from the storage tray (11) to the placement mechanism (13) and from the placement mechanism (13) to the clamping and positioning mechanism (15). The clamping and positioning mechanism (15) includes a clamping component (151) and a plurality of positioning pins (152). The clamping component (151) is used to clamp and fix the plunger seat (16). The plurality of positioning pins (152) are provided on the clamping component (151). The plunger seat (16) includes a plurality of mounting holes (161). The plurality of positioning pins (152) are correspondingly provided with the plurality of mounting holes (161).

2. The plunger seat feeding mechanism according to claim 1, characterized in that, The transfer mechanism (12) includes an X-axis drive mechanism (121), a Y-axis drive mechanism (122), a Z-axis drive mechanism (123), and a moving head (124). The Y-axis drive mechanism (122) is located on the X-axis drive mechanism (121), the Z-axis drive mechanism (123) is located on the Y-axis drive mechanism (122), and the moving head (124) is located at the end of the Z-axis drive mechanism (123).

3. The plunger seat feeding mechanism according to claim 2, characterized in that, The moving head (124) includes a first arm (1241) and a second arm (1242) arranged opposite to each other. The Z-axis drive mechanism is provided with a slide rail (1231) at its end. The first arm (1241) and the second arm (1242) can move closer or further apart relative to each other along the slide rail (1231).

4. The plunger seat feeding mechanism according to claim 1, characterized in that, The placement mechanism (13) also includes a base (133), and the rotary drive assembly (131) includes a drive motor (134) and a rotating seat (135). The drive motor (134) is located on the base (133), and the rotating seat (135) is connected to the drive motor (134). The top of the rotating seat (135) is the plunger seat placement position (132).

5. The plunger seat feeding mechanism according to claim 2, characterized in that, The detection mechanism (14) includes an image acquisition device, which is located on the Y-axis drive mechanism (122).

6. The plunger seat feeding mechanism according to any one of claims 1 to 5, characterized in that, The clamping assembly (151) includes a base plate (1511), a drive unit (1512), a fixed unit (1513), and a movable unit (1514). The fixed unit (1513) and the movable unit (1514) are disposed on the base plate (1511). The positioning pin (152) is disposed on the base plate (1511) between the fixed unit (1513) and the movable unit (1514). The drive unit (1512) is disposed on the side of the fixed unit (1513) away from the movable unit (1514). The drive unit (1512) can drive the movable unit (1514) to move in a direction close to or away from the fixed unit (1513) to clamp or release the plunger seat (16).

7. The plunger seat feeding mechanism according to claim 6, characterized in that, The fixed part (1513) is provided with a through hole (1515), the movable part (1514) is provided with a movable shaft (1516), the movable shaft (1516) passes through the through hole (1515) and protrudes from the fixed part (1513), the driving part (1512) includes a piston (1517), the end of the piston (1517) is correspondingly provided with the end of the movable shaft (1516), and an elastic element (1518) is provided between the base plate (1511) and the movable part (1514) along the movement direction of the movable part (1514).

8. The plunger seat feeding mechanism according to claim 7, characterized in that, The movable part (1514) has a first recessed hole on its side wall away from the fixed part (1513). The base plate (1511) has an upwardly extending extension (1519). The extension (1519) has a second recessed hole. The first recessed hole and the second recessed hole are arranged correspondingly. One end of the elastic member (1518) is located in the first recessed hole, and the other end of the elastic member (1518) is located in the second recessed hole.

9. The plunger seat feeding mechanism according to claim 6, characterized in that, The fixed part (1513) has a first groove (1521) on the side wall near the movable part (1514), and the movable part (1514) has a second groove (1522) on the side wall near the fixed part (1513). The first groove (1521) and the second groove (1522) are arranged correspondingly to form a clamping space.

10. The plunger seat feeding mechanism according to claim 9, characterized in that, The clamping and positioning mechanism (15) also includes a sensor (153), the end of which is positioned toward the clamping space to detect whether a plunger seat (16) exists in the clamping space.