Fully automatic assembly apparatus for piston components

Abstract

The present application relates to the technical field of piston component assembly, and discloses a full-automatic assembly equipment for piston components, which comprises a fixing table, a rotating disc, a placing seat and a sealing piece feeding mechanism, the sealing piece feeding mechanism comprises a sealing piece storage position and a feeding structure, the feeding structure comprises a grabbing structure and a conveying structure, the grabbing structure comprises a mounting block, a telescopic block telescopically arranged at the bottom of the mounting block, a gas cavity arranged in the telescopic block and a suction hole, a switching structure is controlled by the telescopic block to switch the sealing state of the gas cavity, a negative pressure generating structure is used to generate negative pressure in the gas cavity, and a control structure is used to drive the rotating disc to rotate and control the negative pressure generating structure to generate negative pressure, the assembly equipment realizes the grabbing and unloading of the sealing piece through negative pressure adsorption and desorption, and damage to the sealing piece is avoided; one control structure can drive the rotating disc to rotate and adsorb the sealing piece through negative pressure, and desorption can be realized by only controlling the descending distance of the mounting block, the linkage is increased, and the steps are simplified.

Description

Technical Field

[0001] This invention relates to the field of piston component assembly technology, and in particular to a fully automated assembly equipment for piston components. Background Technology

[0002] Piston assembly 1 is an important component of the solenoid valve, including a copper sleeve 101 and a seal 102 press-fitted into the copper sleeve 101. For details, please refer to... Figure 1 .

[0003] Chinese Patent Application No. 201310293122.X discloses a fully automatic piston assembly machine, including a control system, a frame, and a circular feeding tray located at the center of the frame. Several assembly fixtures are equidistantly mounted on the feeding tray. The feeding tray is driven by a feeding motor and can rotate on the frame. Corresponding to the assembly fixtures, piston rod assembly stations, piston assembly stations, seal assembly stations, piston cap assembly stations, rivet stations, and ejection stations are sequentially and equidistantly mounted around the feeding tray. The piston assembly station includes a second base mounted on the frame, on which a piston feeding fixture is mounted to transport the piston from the piston feeding seat to above the assembly fixture.

[0004] Although the piston in the above scheme has a different structure than the piston component in this scheme, the assembly method is similar. The assembly fixture is transferred between various workstations by rotating the turntable, and loading, processing and unloading are performed in sequence. However, during the assembly process, the piston is gripped by a piston feeding fixture, which has the following problems: First, as a sealing component, the piston is generally made of materials with low hardness such as rubber or plastic. When the piston feeding fixture grips the sealing component, it will damage the outer ring surface of the sealing component or cause slight deformation of the sealing component, increasing the defect rate. Second, the gripping of the sealing component by the piston feeding fixture and the rotation of the turntable need to be driven and controlled separately, resulting in poor linkage and room for improvement. Summary of the Invention

[0005] This invention addresses the shortcomings of existing technologies, such as the use of clamps to grip or unload seals, which can lead to deformation or damage of the seals; and the poor linkage between the gripping of the seals and the rotation of the turntable, which are driven or controlled separately. The invention provides a fully automated assembly device for piston components.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A fully automated assembly equipment for piston components includes a fixed table, a turntable rotatably mounted on the fixed table, and a placement seat fixedly mounted on the turntable for placing workpieces. A sealing component feeding mechanism is provided outside the fixed table. The sealing component feeding mechanism includes a sealing component storage position and a feeding structure capable of retrieving a sealing component from the storage position, transferring the sealing component to the opposite placement seat, and releasing it. The feeding structure includes a gripping structure for grasping or unloading the sealing component and a conveying structure for feeding the sealing component.

[0008] The material gripping structure includes a mounting block fixed on the conveying structure and a telescopic block that elastically extends and retracts from the lower end of the mounting block and is in a partially extended state under normal conditions. An air cavity is provided inside the telescopic block, and an adsorption hole communicating with the outside is provided at the bottom of the air cavity. A switching structure is provided between the mounting block and the telescopic block to form or release the sealing state of the air cavity that is in sealing contact with the sealing element as the telescopic block extends and retracts. A negative pressure generating structure is provided between the mounting block and the fixed platform to drive the formation of negative pressure in the air cavity when the air cavity is sealed.

[0009] The rotation of the turntable is controlled by the control structure. While controlling the rotation of the turntable, the control structure also controls the negative pressure generating structure to generate negative pressure. When the air chamber is unsealed, the air chamber returns from negative pressure to normal pressure.

[0010] Using the above scheme, before the placement seat rotates to be directly opposite the sealing element storage position, the conveying structure first drives the mounting block to move to directly above the sealing element storage position. Then, the mounting block descends until it is fully sealed to the bottom of the telescopic block, with the telescopic block partially extended. At this point, the switching structure keeps the air chamber sealed. The control structure drives the turntable to rotate, aligning the placement seat with the sealing element storage position. Simultaneously, the negative pressure generation structure creates negative pressure within the air chamber, adsorbing the sealing element onto the telescopic block. The conveying structure then transports the negatively pressure-adsorbed sealing element from the sealing element storage position to directly above the placement seat, whereupon the mounting block descends until the telescopic block retracts into the mounting block. The switching structure releases the sealing state of the air chamber, restoring the air chamber from negative pressure to normal pressure, thus releasing the adsorption of the sealing element. Repeat the above operation to grasp and unload the seal through negative pressure adsorption and desorption, avoiding damage to the seal; a single control structure can control the rotation of the turntable and the negative pressure adsorption of the seal, and desorption can be achieved by controlling the descent distance of the mounting block, which increases the linkage and simplifies the steps.

[0011] Preferably, the switching structure includes a first through hole on the side wall of the air chamber that communicates with the outside, a sealing body on the mounting block that seals and blocks the first through hole when the telescopic block is partially extended, and a second through hole that allows the first through hole to communicate with the outside when the telescopic block is retracted into the mounting block.

[0012] Using the above scheme, under normal conditions, the telescopic block partially extends, and the end of the first through hole furthest from the air chamber elastically abuts against the sealing body. Therefore, the first through hole is sealed and blocked by the sealing body. After the adsorption hole is also sealed and blocked by the sealing element, a sealed environment is formed inside the air chamber. Conversely, when the telescopic block is retracted into the mounting block under force, the first through hole detaches from the sealing body and connects with the second through hole. Since the second through hole is connected to the outside, outside air enters the air chamber through the second through hole and the first through hole, restoring the air chamber to normal pressure. After the external force is released, the telescopic block elastically returns to its partially extended state.

[0013] Preferably, the negative pressure generating structure includes a fixed block fixed on a fixed platform, an air chamber disposed within the fixed block and sealed and connected to the air cavity, and a piston block that moves within the sealed air chamber. The control structure controls the rotation of the turntable while controlling the piston block to move in the direction that drives the formation of negative pressure in the air cavity. When the air cavity is unsealed, the control structure keeps the turntable stationary while controlling the piston block to move in the opposite direction to reset.

[0014] Using the above scheme, while the turntable rotates, the piston block moves in the direction that creates negative pressure in the air chamber and air cavity; conversely, when the turntable is stationary, when the telescopic block retracts into the mounting block to release the air cavity from its sealed state, the control structure keeps the turntable stationary while controlling the piston block to move in the opposite direction to reset, waiting for the turntable to rotate again to continue generating negative pressure.

[0015] Preferably, the control structure includes a driven shaft rotatably disposed within the fixed block and fixedly connected to the piston block; a second rotating shaft is concentrically rotatably coupled to the end of the driven shaft away from the fixed platform; a locking structure is provided between the second rotating shaft and the driven shaft, which can lock the second rotating shaft and the driven shaft to rotate synchronously or unlock the second rotating shaft and the driven shaft to rotate relative to each other as the telescopic block extends and retracts; a driving structure is provided between the second rotating shaft and the turntable, which drives both to rotate simultaneously; and a torsion spring is provided between the driven shaft and the fixed block, which drives the driven shaft to rotate to reset the piston block after the locking structure is unlocked.

[0016] Using the above scheme, when the bottom of the telescopic block is sealed and fitted with the seal in the sealing position and the telescopic block is partially extended, the locking structure is in the locked state. The driving structure drives the turntable and the second rotating shaft to rotate simultaneously. The driven shaft rotates synchronously with the second rotating shaft, driving the piston block to move in the direction of generating negative pressure in the air chamber. The torsion spring deforms and generates a reset force. Conversely, when the telescopic block is squeezed back into the mounting block by external force, the locking structure is in the unlocked state. The reset force of the torsion spring drives the driven shaft to rotate in the opposite direction to reset, driving the piston block to move in the opposite direction to reset. When the external force on the telescopic block disappears, the telescopic block elastically resets and returns to the partially extended state, and the locking structure returns to the locked state.

[0017] Preferably, the locking structure includes a recessed groove on the second rotating shaft for insertion of the driven shaft, a locking groove recessed on the inner wall of the groove, and a locking block elastically telescopically mounted on the outer ring wall of the driven shaft, which extends to insert into the locking groove when it extends or retracts to disengage from the locking groove when it retracts. The extension and retraction of the locking block is controlled by the de-energization or energization of an electromagnet located at the bottom of the groove. A sensor is installed inside the mounting block, and a control module is installed on the fixed platform that is electrically connected to the electromagnet and the sensor respectively. When the telescopic block retracts into the mounting block, the sensor transmits a signal to the control module to energize the electromagnet; when the telescopic block extends partially out of the mounting block, the sensor transmits a signal to the control module to de-energize the electromagnet.

[0018] Using the above scheme, the sensor can detect whether the telescopic block is partially extended or retracted from the mounting block. When the telescopic block is partially extended from the mounting block, the sensor transmits a signal to the control module to de-energize the electromagnet, causing the locking block to partially extend and insert into the locking groove, thus locking. Conversely, when the telescopic block is retracted from the mounting block, the sensor transmits a signal to the control module to energize the electromagnet, causing the locking block to retract under the magnetic attraction of the electromagnet until it disengages from the locking groove, thus unlocking.

[0019] Preferably, the drive structure includes a first rotating shaft fixedly coaxially with the turntable, a first gear concentrically fixed on the first rotating shaft, and a second gear concentrically fixed on the second rotating shaft and meshing with the first gear, wherein the rotation of the first rotating shaft or the second rotating shaft is controlled by a motor.

[0020] Using the above scheme, the motor drives the first or second rotating shaft, and through the meshing of the first and second gears, the first and second rotating shafts rotate simultaneously.

[0021] Preferably, a copper sleeve feeding mechanism for conveying copper sleeves to a placement seat, a detection mechanism for detecting whether the seal is fed into the copper sleeve, a pressing mechanism for pressing the seal and the copper sleeve together to form a piston component, and a unloading mechanism for removing the piston component from the placement seat are arranged sequentially on the outside of the fixed platform along the rotation direction of the turntable. The seal feeding mechanism is arranged between the copper sleeve feeding mechanism and the detection mechanism for conveying the seal into the copper sleeve on the placement seat.

[0022] Using the above scheme, the placement seat is directly opposite the copper sleeve feeding mechanism, which conveys the copper sleeve to the placement seat. The turntable rotates to rotate the placement seat containing the copper sleeve to be directly opposite the sealing component storage position. During this process, the sealing component is adsorbed onto the telescopic block. The conveying structure conveys the sealing component into the copper sleeve and then releases the adsorption to complete the feeding. The turntable conveys the placement seat containing the copper sleeve and the sealing component to be directly opposite the detection mechanism. After detection, it rotates to be directly opposite the pressing mechanism. The sealing component and the copper sleeve are pressed by the pressing mechanism to form a piston component. Finally, it rotates to be directly opposite the unloading mechanism, which removes the piston component from the placement seat. The entire process completes the fully automatic assembly of the piston component.

[0023] Preferably, a positioning structure for positioning copper sleeve is provided between the placement seat and the fixed platform. The positioning structure's clamping and positioning or release of the copper sleeve is controlled by the rotation of the turntable. Before the placement seat rotates from the copper sleeve feeding mechanism to the sealing component feeding mechanism, the positioning structure performs center positioning and clamping of the copper sleeve, and maintains the clamping state during the placement seat's continued rotation to the pressing mechanism. Before the placement seat rotates from the pressing mechanism to the unloading mechanism, the positioning structure releases the clamping of the copper sleeve, and maintains the released clamping state during the placement seat's continued rotation to the copper sleeve feeding mechanism.

[0024] Using the above solution, the assembly fixtures in the prior art separate or clamp by pushing with a cylinder or hydraulic cylinder. That is, the clamping or detachment of the copper sleeve by the assembly fixture is also driven by a separate drive component, which has poor linkage and cumbersome operation steps. Therefore, a positioning structure is set up. The positioning structure can be controlled to clamp or release the copper sleeve by rotating the turntable, reducing the number of drive components, increasing linkage, and reducing operation steps.

[0025] Preferably, the positioning structure includes two clamping blocks that are movable within the placement seat and can move closer to or further away from each other to position the copper sleeve; a lifting block that is vertically guided and lifted within the turntable, which drives the two clamping blocks to move further away from each other when it rises; and a first spring that is disposed between the clamping blocks and the placement seat, which drives the two clamping blocks to move closer to each other and reset when the lifting block descends. A pressing block that can press the lifting block and drive it to rise when the turntable rotates is fixedly disposed on the fixed platform. A second spring that drives the lifting block to descend and reset when it disengages from the pressing block is disposed between the turntable and the lifting block.

[0026] Using the above scheme, the lifting block and clamping block rotate with the turntable. Before the placement seat rotates from the pressing mechanism to the unloading mechanism, the lifting block rises under the pressure of the pressing block, driving the two clamping blocks away from each other and disengaging from the piston component, thus releasing the clamping force on the piston component. The second spring and the first spring deform to generate a restoring force. During the process of the placement seat rotating from the unloading mechanism to the copper sleeve loading mechanism, the lifting block continues to maintain the state of driving the two clamping blocks away from each other under the action of the pressing block. Before the placement seat rotates from the copper sleeve loading mechanism to the sealing component loading mechanism, the lifting block disengages from the pressing block and descends under the action of the second spring, releasing the driving pressure on the two clamping blocks. The two clamping blocks move closer to each other and reset under the action of the first spring, elastically clamping the outer ring wall of the copper sleeve for center positioning. During the process of the placement seat rotating from the sealing component loading mechanism to the pressing mechanism, since the lifting block does not contact the pressing block, the lifting block will not rise, and the two clamping blocks remain close to each other, clamping the copper sleeve.

[0027] Preferably, the lifting block is provided with driving inclined surfaces that gradually approach each other along the upward direction of the lifting block on both sides near the two clamping blocks. The two clamping blocks are respectively provided with cooperating inclined surfaces that cooperate with the driving inclined surfaces to drive the two clamping blocks away from each other when the lifting block rises. The bottom of the lifting block is provided with a pressing inclined surface that slopes upward along the rotation direction of the turntable. The upper end of the pressing block is provided with a guide inclined surface that cooperates with the pressing inclined surface to drive the lifting block upward when the turntable rotates, as well as a guide plane that keeps the two clamping blocks away from each other.

[0028] Using the above scheme, the lifting block and clamping block rotate with the turntable. During the rotation of the placement seat from the pressing mechanism to the unloading mechanism, the pressing inclined surface on the lifting block and the guiding inclined surface on the pressing block engage in a pressing and sliding fit, driving the lifting block upwards. Subsequently, the turntable rotates until the lifting block and the guiding plane of the pressing block abut against each other, maintaining the lifted block in its raised state. As the lifting block rises, the driving inclined surface on the lifting block and the mating inclined surface on the clamping block engage in a pressing and sliding fit, driving the two clamping blocks away from each other. During the rotation of the placement seat from the unloading mechanism to the copper sleeve loading mechanism, the lifting block and the guiding plane of the pressing block abut against each other and slide against each other, maintaining the two clamping blocks away from each other.

[0029] This invention, employing the above technical solutions, achieves significant technical effects: During the process of the motor driving the first rotating shaft to rotate the placement seat from the copper sleeve feeding mechanism to the position directly opposite the sealing element storage location, the lifting block and the pressing block disengage and descend, causing the two clamping blocks to move closer together to clamp the copper sleeve for center positioning. This also drives the piston block to move, creating negative pressure within the air chamber to adsorb the sealing element. The conveying structure conveys the sealing element into the copper sleeve. Controlling the descent distance of the mounting block allows the telescopic block to retract into the mounting block, disrupting the sealing environment of the air chamber and releasing it from adsorption. Simultaneously, it causes the locking block to disengage from the locking groove, and the piston block resets under the action of the torsion spring. When the conveying structure moves the mounting block above the sealing element storage location to await feeding, the telescopic block partially extends, and the locking block extends elastically. As the turntable continues to rotate, the second rotating shaft rotates simultaneously with the turntable, and the locking block inserts into the locking groove, causing the sealing element to move and generate negative pressure. During the process of the placement seat rotating from the pressing mechanism to the position directly opposite the unloading mechanism, the pressing block drives the lifting block to rise, causing the two clamping blocks to move away from each other and release their positioning. A single motor can control the rotation of the turntable, the clamping and positioning or release of the copper sleeve, and the negative pressure adsorption of the seal. Desorption can be achieved by controlling the descent distance of the mounting block, and the piston block can be driven to reset, which increases the linkage and simplifies the process. At the same time, the seal is gripped and unloaded through negative pressure adsorption and desorption, avoiding damage to the seal. Attached Figure Description

[0030] Figure 1 This is a half-sectional schematic diagram of a piston component in the prior art;

[0031] Figure 2This is an isometric view of a piston component in a fully automated assembly device according to an embodiment, showing the seal waiting to be loaded.

[0032] Figure 3 yes Figure 2 Enlarged view of point A in the image;

[0033] Figure 4 This is an isometric view of a piston component being fed into a fully automated assembly device according to one embodiment.

[0034] Figure 5 yes Figure 4 Enlarged view of point B in the image;

[0035] Figure 6 This is a top view of a piston component in a fully automated assembly device according to an embodiment, showing the seal waiting to be loaded.

[0036] Figure 7 yes Figure 6 Sectional view at point C;

[0037] Figure 8 yes Figure 7 Enlarged view of point D in the image;

[0038] Figure 9 This is a partial enlarged view of the clamping blocks being far apart in a fully automated assembly equipment for a piston component according to the embodiment;

[0039] Figure 10 yes Figure 7 Enlarged view of point E in the image;

[0040] Figure 11 This is a half-sectional schematic diagram of the sealing component being fed into a fully automated assembly equipment for a piston component in one embodiment.

[0041] Figure 12 yes Figure 11 Enlarged view of point F in the image;

[0042] Figure 13 yes Figure 12 Enlarged view of point H in the image;

[0043] Figure 14 yes Figure 11 Enlarged view of point G in the image;

[0044] Figure 15 This is a partial enlarged view of the locking structure being unlocked in a fully automated assembly equipment for a piston component according to the embodiment;

[0045] Figure 16 This is a front view of the piston block being reset in a fully automated assembly device for a piston component according to an embodiment;

[0046] Figure 17 yes Figure 16 Sectional view at point II in the middle;

[0047] Figure 18 yes Figure 17 Enlarged view of point J in the image;

[0048] Figure 19 This is a magnified view of a piston block moving away from the connecting pipe in a fully automated assembly device for a piston component in one embodiment, causing negative pressure to be generated in the air chamber.

[0049] Figure 20 This is an exploded view of a fully automated assembly equipment for a piston component in one embodiment;

[0050] Figure 21 yes Figure 20 Enlarged view of point K in the image;

[0051] Figure 22 yes Figure 20 Enlarged view of point L in the image;

[0052] Figure 23 yes Figure 20 Enlarged view of point M in the image.

[0053] The parts referred to by the numbers in the above attached diagrams are as follows: 1. Piston assembly; 101. Copper sleeve; 102. Seal; 2. Worktable; 201. Fixing plate; 202. Fixing platform; 3. Turntable; 4. Placement seat; 5. Placement groove; 6. Seal storage position; 7. Mounting block; 8. Telescopic groove; 9. Telescopic block; 10. Third spring; 11. Air chamber; 12. Adsorption hole; 13. First through hole; 14. Seal 15. Body; 16. Second through hole; 17. Fixing block; 18. Air chamber; 19. Connecting pipe; 10. First connecting pipe; 11. Sealed chamber; 12. Second connecting pipe; 13. Piston block; 24. Driven shaft; 25. Torsion spring; 26. Second rotating shaft; 27. Groove; 28. Locking groove; 29. ​​Sliding groove; 20. Locking block; 21. Electromagnet; 22. Fourth spring; 23. Sensor; 34. First connecting pipe; 25. Sealed chamber; 26. Second connecting pipe; 27. Piston block; 28. Driven shaft; 29. ​​Torsion spring; 20. Second rotating shaft; 21. Groove; 20. Locking groove; 21. Locking block; 22. Electromagnet; 23. Fourth spring; 24. Sensor; 25. Second connecting pipe; 26. Locking block; 27. Electromagnet; 28. Fourth spring; 29. ​​Sensor; 30. Third connecting pipe; 21. Second connecting pipe; 22. Second connecting pipe; 23. Second connecting pipe; 24. Locking groove; 25. Sliding groove ... Second spring; 20. Third connecting pipe; 21. Second connecting pipe; 22. Second connecting pipe; 23. Second connecting pipe; 24. Locking groove; 25. Sliding groove; 26. Locking block; 27. Electromagnet; 28. 31. Rotating shaft; 32. First gear; 33. Second gear; 34. Motor; 35. Clamping block; 36. First spring; 37. Clearance groove; 38. Lifting block; 39. Transmission block; 40. Drive block; 41. Connecting block; 42. Lifting groove; 43. Through groove; 44. Extrusion block; 45. Second spring; 46. Drive inclined surface; 47. Mating inclined surface; 48. Extrusion inclined surface; 49. 47. Extrusion plane; 48. Guide slope; 59. Guide plane; 50. Copper sleeve loading tray; 51. First robot arm; 52. Conveyor belt; 53. Receiving point; 54. Moving block; 55. Feed chute; 56. Pushing electric cylinder; 57. Detection mechanism; 58. Press head; 59. Lifting cylinder; 60. Unloading tray; 61. Second robot arm; 62. Lifting electric cylinder; 63. Horizontal electric cylinder; 64. Circular groove; 65. Connecting rod. Detailed Implementation

[0054] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0055] Example

[0056] A fully automated assembly equipment for piston components, referring to Figures 1 to 23The system includes a workbench 2, which comprises a fixed plate 201 fixed to the ground and a fixed platform 202 fixedly mounted on the fixed plate 201. A turntable 3 is mounted on the fixed platform 202, and a first rotating shaft 30 is concentrically mounted on the bottom of the turntable 3. A motor 33 is fixedly mounted on the fixed plate 201 between the fixed plate 201 and the fixed platform 202. The end of the first rotating shaft 30 away from the turntable 3 passes through the fixed platform 202 and connects to the output shaft of the motor 33, and the first rotating shaft 30 and the fixed platform 202 are in rotatable engagement. The connection method between the first rotating shaft 30 and the output shaft of the motor 33, as well as the rotatable engagement method between the first rotating shaft 30 and the fixed platform 202, are all existing technologies. In this embodiment, the first rotating shaft 30 and the output shaft of the motor 33 are connected by a coupling, and the rotatable engagement between the first rotating shaft 30 and the fixed platform 202 is achieved by a bearing, which is not shown in the figure and will not be described in detail here.

[0057] Eight placement seats 4 are evenly spaced and fixedly arranged on the upper surface of the turntable 3 around its axial direction, with an included angle of 45° between adjacent placement seats 4. Each placement seat 4 has a recessed groove 5 for placing a copper sleeve 101. A copper sleeve feeding mechanism, a sealing component feeding mechanism, a detection mechanism 57, a pressing mechanism, and a discharging mechanism are arranged sequentially and at intervals around the turntable 3 and along the rotation direction of the turntable 3 on the fixed plate 201. When the turntable 3 rotates to the point where a placement seat 4 is directly opposite the copper sleeve feeding mechanism, the placement seat 4 adjacent to that placement seat 4 along the rotation direction of the turntable 3 is directly opposite the sealing component feeding mechanism. At this time, three of the remaining six placement seats 4 are directly opposite the detection mechanism 57, the pressing mechanism, and the discharging mechanism, respectively, while the remaining three placement seats 4 are not directly opposite any mechanism.

[0058] The placement seat 4 is directly opposite the copper sleeve feeding mechanism, which conveys a copper sleeve 101 into the placement groove 5. The turntable 3 rotates the placement seat 4 containing the copper sleeve 101 by 45° and then conveys it to the position directly opposite the sealing component feeding mechanism, which conveys a sealing component 102 into the copper sleeve 101. The turntable 3 rotates the placement seat 4 containing the copper sleeve 101 and the sealing component 102 by 45° and then conveys it to the position directly opposite the detection mechanism 57, ensuring that the sealing component 102 is fed onto the copper sleeve 101. After that, it rotates another 45° and then conveys it to the position directly opposite the pressing mechanism. The sealing component 102 and the copper sleeve 101 are pressed together by the pressing mechanism to form a piston component 1. Finally, it rotates 135° and then conveys it to the position directly opposite the unloading mechanism, which removes the piston component 1 from the placement seat 4. The entire process completes the fully automatic assembly of the piston component 1.

[0059] The copper sleeve feeding mechanism in this embodiment includes a copper sleeve feeding tray 50 for storing copper sleeves 101 and a first robotic arm 51 for transferring copper sleeves 101 from the copper sleeve feeding tray 50 to the placement groove 5. The detection mechanism 57 is a laser sensor. When the sealing member 102 is placed inside the copper sleeve 101 but not pressed into it, the end of the sealing member 102 away from the turntable 3 is higher than the end of the copper sleeve 101 away from the turntable 3. Therefore, the horizontal beam of the laser sensor is higher than the end of the copper sleeve 101 away from the turntable 3 and lower than the end of the sealing member 102 away from the turntable 3, which is sufficient for detection. The pressing mechanism includes a lifting pressure head 58 and a lifting cylinder 59 for driving the pressure head 58 to rise and fall. The unloading mechanism includes an unloading tray 60 for storing piston components 1 and a second robotic arm 61 for transferring piston components 1 from the placement groove 5 to the unloading tray 60. The copper sleeve feeding tray 50 and the unloading tray 60 are placed on a movable plate, which is movably mounted on a fixed plate 201. The first robotic arm 51, the laser sensor, the lifting cylinder 59, and the second robotic arm 61 are all existing technologies, and their specific working principles will not be elaborated here. The control methods and timing for starting or stopping the above four components and the motor 33 are all implemented based on the control system and logic programming, which are existing technologies and will not be elaborated here.

[0060] The sealing component feeding mechanism includes a sealing component storage position 6 and a feeding structure that transfers the sealing component 102 from the sealing component storage position 6 to the copper sleeve 101 of the placement seat 4 directly opposite it. A material transfer device is provided on the fixing plate 201 to transfer the sealing component 102 to the sealing component storage position 6.

[0061] The material transfer device includes a receiving point 53, a conveyor belt 52 for transferring the seal 102 to the receiving point 53, and a pushing structure for transferring the seal 102 from the receiving point 53 to the seal storage position 6. The pushing structure includes a moving block 54 that reciprocates between the seal storage position 6 and the receiving point 53, a pusher cylinder 56 for controlling the linear movement of the moving block 54, and a feed trough 55 recessed on the upper surface of the moving block 54 to accommodate only one seal 102. The side of the feed trough 55 closest to the conveyor belt 52 is connected to the conveyor belt 52 so that the seal 102 can enter the feed trough 55 from the conveyor belt 52. When the feed trough 55 is directly opposite the conveyor belt 52, the feed trough 55 is located at the receiving point 53. After the conveyor belt 52 transfers the seal 102 into the feed trough 55, the pusher cylinder 56 pushes the moving block 54 to move the feed trough 55 to the seal storage position 6. The conveyor belt 52 and the electric cylinder 56 are both existing technologies. The control methods and timing for starting or stopping the above two and the motor 33 are all implemented based on the control system and logic programming. The control system and logic programming are existing technologies and will not be described in detail here.

[0062] The feeding structure includes a gripping structure that can negatively pressure adsorb the sealing element 102 or release the adsorption, and a conveying structure that controls the lifting and lowering of the gripping structure or its horizontal reciprocating movement between the sealing element storage position 6 and the opposite placement seat 4. The conveying structure includes a lifting electric cylinder 62 that drives the gripping structure to lift and lower, and a horizontal electric cylinder 63 that drives the lifting electric cylinder 62 to move horizontally. Both the lifting electric cylinder 62 and the horizontal electric cylinder 63 are existing technologies. The control methods and timing for starting or stopping the above two and the motor 33 are implemented according to the control system and logic programming, which are also existing technologies and will not be described in detail here.

[0063] The material gripping structure includes a mounting block 7 fixedly connected to the output end of the lifting electric cylinder 62. The bottom of the mounting block 7 is recessed with a telescopic groove 8. A telescopic block 9 that can partially extend out of the telescopic groove 8 or retract into the telescopic groove 8 is telescopically arranged inside the telescopic groove 8. A third spring 10 is arranged between the bottom of the telescopic block 9 and the telescopic groove 8, with its two ends fixedly connected to both. The third spring 10 is arranged along the telescopic direction of the telescopic block 9 and initially drives the telescopic block 9 to partially extend out.

[0064] An air chamber 11 is provided inside the telescopic block 9, and an adsorption hole 12 is provided at the bottom of the telescopic block 9 to connect the air chamber 11 with the outside. A first through hole 13 is provided on the side wall of the telescopic block 9 to connect the air chamber 11 with the outside. A sealing body 14 is provided on the inner wall of the telescopic groove 8. When the telescopic block 9 is partially extended, the end of the first through hole 13 away from the air chamber 11 elastically abuts against the side wall of the sealing body 14, so the first through hole 13 is sealed and blocked by the sealing body 14. After the adsorption hole 12 is also sealed and blocked by the sealing element 102, a sealed environment is formed inside the air chamber 11. In this embodiment, the telescopic block 9 and the telescopic groove 8 are arranged in a circular shape, the sealing element 14 is a sealing ring, the outer ring wall of the telescopic block 9 and the inner ring wall of the sealing ring are sealed and slidably fitted, and four adsorption holes 12 are evenly spaced around the axial direction of the telescopic block 9. The side wall of the mounting block 7 is provided with a second through hole 15 that connects the telescopic groove 8 to the outside. When the telescopic block 9 is retracted into the mounting block 7 under force, the first through hole 13 is disengaged from the sealing body 14 and connects with the telescopic groove 8. This allows outside air to enter the air chamber 11 through the second through hole 15, the telescopic groove 8, and the first through hole 13, restoring the air chamber 11 to normal pressure. After the external force is released, the telescopic block 9 elastically returns to its partial extension, and the first through hole 13 is blocked again by the sealing body 14.

[0065] A fixing block 16 is fixedly installed at the bottom of the fixing platform 202. An air chamber 17 is provided inside the fixing block 16. A piston block 19 is provided inside the air chamber 17 in a sealed and movable manner. A connecting pipe 18 is provided between the air chamber 11 and the air chamber 17, with both ends respectively sealed and connected to both. When the piston block 19 moves away from the connecting pipe 18, a negative pressure is formed in the air chamber 17 and the air chamber 11. When the piston block 19 moves closer to the connecting pipe 18, it resets.

[0066] The connecting pipe 18 includes a sealed chamber 1802 disposed within the mounting block 7, a first connecting pipe 1801 whose two ends are respectively connected to the sealed chamber 1802 and the air chamber 17, and a second connecting pipe 1803 whose two ends are respectively connected to the sealed chamber 1802 and the air chamber 17. The first connecting pipe 1801 and the second connecting pipe 1803 are made of flexible material and can undergo restorable deformation when the mounting block 7 moves or when the telescopic block 9 extends or retracts. The negative pressure generated by the movement of the piston block 19 will not cause deformation of the first connecting pipe 1801 and the second connecting pipe 1803, or the deformation will be small, and will not affect the internal gas flow.

[0067] A driven shaft 20 is rotatably mounted inside the fixed block 16. A connecting rod 65 extends vertically from the side wall of the piston block 19 away from the first connecting pipe 1801 and is fixedly connected to the outer ring wall of the driven shaft 20. In this embodiment, the air chamber 17 and the piston block 19 are arranged in an arc shape concentric with the driven shaft 20. Rotation of the driven shaft 20 can drive the piston block 19 to move within the air chamber 17. There is clearance space within the fixed block 16 for the connecting rod 65 and the piston block 19 to rotate.

[0068] A second rotating shaft 22, concentric with the driven shaft 20, is rotatably mounted on the fixed plate 201. A second gear 32 is concentrically fixed on the second rotating shaft 22, and a first gear 31 is concentrically fixed on the first rotating shaft 30. The meshing of the first gear 31 and the second gear 32 causes the first rotating shaft 30 and the second rotating shaft 22 to rotate simultaneously. A locking structure is provided between the second rotating shaft 22 and the driven shaft 20. When locked, they rotate synchronously; when unlocked, they rotate relative to each other.

[0069] The locking structure includes a groove 23 recessed at the end of the second rotating shaft 22 away from the fixed plate 201, into which the end of the driven shaft 20 away from the fixed platform 202 is inserted. A locking groove 24 is recessed on the inner wall of the groove 23. At least one locking groove 24 is spaced apart around the axial direction of the driven shaft 20. In this embodiment, only one locking groove 24 is provided. A sliding groove 25 is recessed on the outer ring wall of the driven shaft 20. A locking block 26 is telescopically provided in the sliding groove 25, which is inserted into the locking groove 24 when partially extended or disengaged from the locking groove 24 when retracted. A fourth spring 28 is provided between the locking block 26 and the bottom of the sliding groove 25, with both ends fixed to both. The fourth spring 28 is arranged along the telescopic direction of the locking block 26 and initially drives the locking block 26 to partially extend.

[0070] An electromagnet 27 is fixedly installed at the bottom of the sliding groove 25, and a sensor 29 is installed at the bottom of the telescopic groove 8. A control module is installed on the fixed platform 202, which is electrically connected to the electromagnet 27 and the sensor 29 respectively. When the telescopic block 9 retracts into the telescopic groove 8, the sensor 29 transmits a signal to the control module to energize the electromagnet 27, causing the locking block 26 to retract into the sliding groove 25. When the telescopic block 9 partially extends out of the mounting block 7, the sensor 29 transmits a signal to the control module to de-energize the electromagnet 27, and the locking block 26 partially extends out under the action of the fourth spring 28.

[0071] In this embodiment, sensor 29 is a pressure sensor. When the telescopic block 9 retracts and touches it, the control electromagnet 27 is energized; conversely, when the telescopic block 9 partially extends, it disengages from the control electromagnet 27 and de-energizes it. The connection method between the pressure sensor 29, the control module, and the electromagnet 27, as well as the logic programming for the control method among the three, are all existing technologies and are not shown in the figure, so they will not be described in detail here.

[0072] Two clamping blocks 34 are symmetrically arranged within the placement base 4, with the axis of the placement groove 5 as the axis of symmetry. The two clamping blocks 34 can either approach each other to clamp and position the copper sleeve 101 placed in the placement groove 5, or they can move away from each other and detach from the outer ring wall of the copper sleeve 101. Both the placement base 4 and the turntable 3 are provided with clearance grooves 36 for the movement of the two clamping blocks 34. A first spring 35 is provided between the clearance groove 36 and the clamping blocks 34, with both ends fixedly connected to both. The first spring 35 is positioned along the moving direction of the clamping blocks 34 and, in its initial state, drives the two clamping blocks 34 to approach each other.

[0073] The turntable 3 has a lifting space 38 that communicates with the clearance groove 36. A transmission block 3701 moves up and down in the lifting space 38, and one end of the clamping block 34 is located in the lifting space 38. The two sides of the transmission block 3701 near the two clamping blocks 34 are provided with driving inclined surfaces 43 that gradually approach each other along the upward direction of the transmission block 3701. The two clamping blocks 34 are respectively provided with mating inclined surfaces 44 that squeeze and slide with the driving inclined surfaces 43 when the transmission block 3701 rises, so as to drive the two clamping blocks 34 away from each other.

[0074] A lifting groove 39 is recessed at the bottom of the turntable 3 below the lifting space 38. A driving block 3702 is vertically and vertically mounted within the lifting groove 39. A connecting block 3703 is fixedly connected to both the driving block 3702 and the transmission block 3701 at both ends. A through groove 40 is provided within the turntable 3 for the connecting block 3703 to move up and down. A second spring 42 is fixedly connected to both the driving block 3702 at both ends between the lifting groove 39 and the driving block 3702. The second spring 42 is positioned along the lifting direction of the driving block 3702 and initially causes the driving block 3702 to partially extend out of the lifting groove 39. When the driving block 3702 rises, it causes the transmission block 3701 to rise; when the driving block 3702 falls, it causes the transmission block 3701 to fall. The driving block 3702, the connecting block 3703, and the transmission block 3701 together form the lifting block 37.

[0075] Since there is only a gap between the bottom of the turntable 3 and the upper surface of the fixed platform 202, the upper surface of the fixed platform 202 is recessed with an annular groove 64 for the partially protruding drive block 3702 to rotate with the turntable 3. An extrusion block 41 is fixedly installed in the annular groove 64. The bottom of the drive block 3702 includes an extrusion plane 46 and an extrusion inclined surface 45 that slopes upward in the rotation direction of the turntable 3. The upper end of the extrusion block 41 is provided with a guide inclined surface 47 that cooperates with the extrusion inclined surface 45 to drive the lifting block 37 to rise when the turntable 3 rotates, and a guide plane 48 that abuts against the extrusion plane 46 after the lifting block 37 rises, keeping the two clamping blocks 34 in a state of being far apart from each other.

[0076] The specific steps are as follows:

[0077] The placement seat 4 is directly opposite the copper sleeve feeding mechanism. At this time, the guide plane 48 abuts against the extrusion plane 46, causing the lifting block 37 to rise, driving the two clamping blocks 34 to move away from each other. The first spring 35 and the second spring 42 deform to generate elastic force. The first robot arm 51 transfers the copper sleeve 101 from the copper sleeve feeding tray 50 to the placement groove 5. At the same time, the conveyor belt 52 conveys the seal 102 to the feeding groove 55 located at the receiving point 53. The electric cylinder 56 drives the moving block 54 to move, and the seal in the feeding groove 55 is moved. 102 is transferred from receiving point 53 to sealing material loading point 6. Horizontal electric cylinder 63 drives mounting block 7 to move above sealing material loading point 6. Lifting electric cylinder 32 drives mounting block 7 to descend so that the bottom of telescopic block 9 fits against the upper end face of sealing material 102 to seal and block adsorption hole 12. At this time, telescopic block 9 is in a partially extended state. First through hole 13 is sealed and blocked by sealing body 14. Air cavity 11 is in a sealed state. Electromagnet 27 is de-energized. Locking block 26 is partially extended and inserted into locking groove 24. This is process one.

[0078] Motor 33 drives the first rotating shaft 30 to rotate 45°, which in turn drives the turntable 3 to rotate the placement seat 4 containing the copper sleeve 101 until it is aligned with the material position 6 of the seal. During the rotation of the turntable 3: the drive block 3702 disengages from the extrusion block 41 and descends under the action of the second spring 42. The two clamping blocks 34 move closer to each other under the action of the first spring 35 to position and clamp the copper sleeve 101. The second rotating shaft 22 and the driven shaft 20 rotate simultaneously, driving the piston block 19 to move away from the connecting pipe 18, so that a negative pressure is formed in the air chamber 11, which adsorbs the seal 102 onto the telescopic block 9. The torsion spring 21 deforms and generates elastic force. This is process two.

[0079] The lifting cylinder 62 controls the mounting block 7 to rise, and the horizontal cylinder 63 drives the mounting block 7 to move horizontally, transferring the seal 102 to directly above the copper sleeve 101. The lifting cylinder 62 drives the mounting block 7 to descend until the telescopic block 9 retracts into the telescopic groove 8. After the first through hole 13 disengages from the seal 14, the air chamber 11 communicates with the outside through the first through hole 13, the telescopic groove 8, and the second through hole 15, disrupting the sealing environment of the air chamber 11 and restoring the normal pressure inside the air chamber 11, releasing the adsorption of the seal 102. The third spring 10 deforms and generates elastic force. At the same time, the sensor 29 transmits a signal to the control module to energize the electromagnet 27. The locking block 26 is magnetically retracted into the sliding groove 25 and disengages from the locking groove 24. The driven shaft 20 moves closer to the connecting pipe 18 and resets under the elastic force of the torsion spring 21. The fourth spring 28 deforms and generates elastic force. This is process three.

[0080] The lifting electric cylinder 62 controls the mounting block 7 to rise, and the horizontal electric cylinder 63 drives the mounting block 7 to move horizontally and reset it above the material position 6 of the seal. Under the action of the third spring 10, the telescopic block 9 partially extends out of the telescopic groove 8, and the first through hole 13 is blocked by the seal body 14. At the same time, the sensor 29 transmits a signal to the control module to control the electromagnet 27 to de-energize. After the magnetic force on the locking block 26 disappears, it partially extends out of the sliding groove 25 and inserts into the locking groove 24 under the action of the fourth spring 28. This is process four.

[0081] By continuously repeating processes one through four, the placement seat 4 without copper sleeve 101 continuously feeds copper sleeve 101 and seal 102, while the placement seat 4 with seal 102 and copper sleeve 101 is continuously conveyed to the detection mechanism 57 for detection by laser sensor 29; conveyed to the pressing mechanism for pressing by lifting cylinder 59 driving pressing head 58 to rise and fall; and conveyed to the unloading mechanism for transferring piston component 1 from placement groove 5 to unloading platen 60 by second robot arm 61.

[0082] During the rotation of the placement seat 4 from the sealing component feeding mechanism to its alignment with the pressing mechanism, the drive block 3702 will not contact the extrusion block 41, and the lifting block 37 remains in a descending state, meaning the two clamping blocks 34 remain close to each other, clamping the copper sleeve 101. During the rotation of the placement seat 4 from the pressing mechanism to its alignment with the unloading mechanism, the extrusion inclined surface 45 and the guide inclined surface 47 engage in extrusion and sliding cooperation, driving the lifting block 37 upward. The drive inclined surface 43 and the mating inclined surface 44 engage in extrusion and sliding cooperation, driving the two clamping blocks 34 away from each other and releasing their positioning. The first spring 35 and the second spring 42 deform to generate elastic force. During the rotation of the placement seat 4 from the unloading mechanism to its alignment with the copper sleeve feeding mechanism, the extrusion plane 46 and the guide plane 48 abut and slide, keeping the two clamping blocks 34 away from each other.

[0083] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A fully automatic assembly equipment for piston components, comprising a fixed table (202), a turntable (3) rotatably disposed on the fixed table (202), and a placement seat (4) fixedly disposed on the turntable (3) for placing workpieces, wherein a sealing component feeding mechanism is provided on the outside of the fixed table (202), the sealing component feeding mechanism comprising a sealing component storage position (6) and a feeding structure for retrieving a sealing component (102) from the sealing component storage position (6) and transferring the sealing component (102) to the placement seat (4) directly opposite it and releasing it, the feeding structure comprising a gripping structure for gripping or unloading and a conveying structure for feeding, characterized in that: The material gripping structure includes a mounting block (7) fixed on the conveying structure and a telescopic block (9) that elastically extends and retracts to the lower end of the mounting block (7) and is in a partially extended state under normal conditions. An air cavity (11) is provided inside the telescopic block (9). An adsorption hole (12) communicating with the outside is provided at the bottom of the air cavity (11). A switching structure is provided between the mounting block (7) and the telescopic block (9) to form or release the sealing state of the air cavity (11) that is in sealing contact with the sealing element (102) as the telescopic block (9) extends and retracts. A negative pressure generating structure is provided between the mounting block (7) and the fixed platform (202) to drive the air cavity (11) to form a negative pressure when the air cavity (11) forms a seal. The rotation of the turntable (3) is controlled by the control structure. While the control structure controls the rotation of the turntable (3), it also controls the negative pressure generating structure to generate negative pressure. When the air chamber (11) is unsealed, the air chamber (11) returns from negative pressure to normal pressure. The negative pressure generating structure includes a fixed block (16) fixed on a fixed platform (202), an air chamber (17) disposed in the fixed block (16) and sealed communication with the air chamber (11), and a piston block (19) sealed and movable in the air chamber (17). The control structure controls the turntable (3) to rotate while controlling the piston block (19) to move in the direction that drives the air chamber (11) to form negative pressure. When the air chamber (11) is unsealed, the control structure keeps the turntable (3) stationary while controlling the piston block (19) to move in the opposite direction to reset. The control structure includes a driven shaft (20) rotatably disposed within the fixed block (16) and fixedly connected to the piston block (19). A second rotating shaft (22) is concentrically rotatably coupled to the end of the driven shaft (20) away from the fixed platform (202). A locking structure is provided between the second rotating shaft (22) and the driven shaft (20) to lock the second rotating shaft (22) and the driven shaft (20) to rotate synchronously or to unlock the second rotating shaft (22) and the driven shaft (20) to rotate relative to each other as the telescopic block (9) extends and retracts. A drive structure is provided between the second rotating shaft (22) and the turntable (3) to drive both to rotate simultaneously. A torsion spring (21) is provided between the driven shaft (20) and the fixed block (16) to drive the driven shaft (20) to rotate so that the piston block (19) is reset after the locking structure is unlocked. The locking structure includes a groove (23) recessed on the second rotating shaft (22) for the driven shaft (20) to be inserted, a locking groove (24) recessed on the inner wall of the groove (23), and a locking block (26) elastically telescopically disposed on the outer ring wall of the driven shaft (20), which is inserted into the locking groove (24) when extended or disengaged from the locking groove (24) after retraction. The extension and retraction of the locking block (26) is controlled by the de-energization or energization of the electromagnet (27) disposed at the bottom of the groove (23). A sensor (29) is installed inside the mounting block (7), and a control module is installed on the fixed platform (202) that is electrically connected to the electromagnet (27) and the sensor (29) respectively. When the telescopic block (9) retracts into the mounting block (7), the sensor (29) transmits a signal to the control module to control the electromagnet (27) to be energized; when the telescopic block (9) partially extends out of the mounting block (7), the sensor (29) transmits a signal to the control module to control the electromagnet (27) to be de-energized.

2. The fully automatic assembly equipment for piston components according to claim 1, characterized in that: The switching structure includes a first through hole (13) on the side wall of the air chamber (11) that communicates with the outside, a sealing body (14) on the mounting block (7) that seals and blocks the first through hole (13) when the telescopic block (9) is partially extended, and a second through hole (15) that communicates the first through hole (13) with the outside when the telescopic block (9) is retracted into the mounting block (7).

3. The fully automatic assembly equipment for piston components according to claim 1, characterized in that: The drive structure includes a first rotating shaft (30) fixedly coaxially with the turntable (3), a first gear (31) fixed concentrically on the first rotating shaft (30), and a second gear (32) fixed concentrically on the second rotating shaft (22) and meshing with the first gear (31). The rotation of the first rotating shaft (30) or the second rotating shaft (22) is controlled by the motor (33).

4. The fully automatic assembly equipment for piston components according to claim 1, characterized in that: On the outside of the fixed platform (202) along the rotation direction of the turntable (3), there are a copper sleeve feeding mechanism that conveys the copper sleeve (101) to the placement seat (4), a detection mechanism (57) that detects whether the sealing element (102) is fed into the copper sleeve (101), a pressing mechanism that presses the sealing element (102) and the copper sleeve (101) together to form a piston component (1), and a unloading mechanism that removes the piston component (1) from the placement seat (4). The sealing element feeding mechanism is located between the copper sleeve feeding mechanism and the detection mechanism (57) for conveying the sealing element (102) into the copper sleeve (101) on the placement seat (4).

5. The fully automatic assembly equipment for piston components according to claim 4, characterized in that: A positioning structure for a positioning copper sleeve (101) is provided between the placement seat (4) and the fixed platform (202). The positioning structure clamps and positions the copper sleeve (101) or releases it from the rotation of the turntable (3). Before the placement seat (4) rotates from the copper sleeve feeding mechanism to the sealing component feeding mechanism, the positioning structure performs center positioning clamping on the copper sleeve (101) and maintains the clamping state during the process of the placement seat (4) continuing to rotate to the pressing mechanism. Before the placement seat (4) rotates from the pressing mechanism to the unloading mechanism, the positioning structure releases the clamping on the copper sleeve (101) and maintains the released clamping state during the process of the placement seat (4) continuing to rotate to the copper sleeve feeding mechanism.

6. The fully automatic assembly equipment for piston components according to claim 5, characterized in that: The positioning structure includes two clamping blocks (34) that are movable within the placement base (4) and can be positioned close to each other or far apart from each other; a lifting block (37) that is vertically guided to rise within the turntable (3) and drives the two clamping blocks (34) to move away from each other when rising; and a first spring (35) that is provided between the clamping blocks (34) and the placement base (4) and drives the two clamping blocks (34) to move close to each other and reset when the lifting block (37) falls. A pressing block (41) that can press the lifting block (37) and drive it to rise when the turntable (3) rotates is fixedly provided on the fixed platform (202). A second spring (42) that drives the lifting block (37) to fall and reset when the lifting block (37) disengages from the pressing block (41) is provided between the turntable (3) and the lifting block (37).

7. The fully automatic assembly equipment for piston components according to claim 6, characterized in that: The lifting block (37) is provided with driving inclined surfaces (43) that gradually approach each other along the upward direction of the lifting block (37) on both sides of the two clamping blocks (34). The two clamping blocks (34) are respectively provided with cooperating inclined surfaces (44) that cooperate with the driving inclined surfaces (43) to drive the two clamping blocks (34) away from each other when the lifting block (37) rises. The bottom of the lifting block (37) is provided with a pressing inclined surface (45) that is inclined upward along the rotation direction of the turntable (3). The upper end of the pressing block (41) is provided with a guide inclined surface (47) that cooperates with the pressing inclined surface (45) to drive the lifting block (37) to rise when the turntable (3) rotates, and a guide plane (48) that keeps the two clamping blocks (34) away from each other.

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