Air valve push rod press-fitting device

Abstract

The invention relates to an air valve push rod press-fitting device and relates to the technical field of air valve machining, the air valve push rod press-fitting device comprises a workbench, a support and a processor, the support is located above the workbench and fixedly connected with the workbench, a sliding base is arranged on the workbench in the horizontal direction in a sliding mode, and a first driving piece used for driving the sliding base to slide is arranged on the workbench; a press-fitting bracket and a riveting bracket are arranged on the sliding seat, and the press-fitting bracket and the riveting bracket are arranged at intervals in the sliding direction of the sliding seat; a pressing block is arranged on the support in the vertical direction in a sliding mode, and a second driving piece used for driving the pressing block to slide is arranged on the support. A press-fitting table and a riveting table are fixedly arranged at the bottom of the pressing block and arranged at intervals in the sliding direction of the sliding base, and a loading assembly is arranged at the bottom of the press-fitting table and used for loading or loosening the balance valve element. The assembling device has the effects that the assembling efficiency of the push rod and the balance valve element is improved, and manual operation steps are reduced.

Description

Technical Field

[0001] This application relates to the technical field of valve processing, and in particular to a valve push rod press-fitting device. Background Art

[0002] Pneumatic valves are a widely used industrial equipment. By compressing air to push the movement of multiple sets of combined pneumatic pistons in the actuator, the control of fluids is achieved. Common pneumatic valves include a balanced valve core and a push rod. The push rod is fixedly connected to the balanced valve core, and the push rod provides guidance for the movement of the balanced valve core. The valve core is used to control fluids.

[0003] In the related art, the balanced valve core and the push rod are usually assembled with two independent parts. A connection hole for inserting the push rod is provided on the balanced valve core, and an interference fit is provided between the push rod and the connection hole. During assembly, it is necessary for workers to use a press-fitting device to press the push rod into the connection hole manually. A chamfer is provided at one end of the push rod passing through the connection hole. After the push rod passes through the connection hole, it is also necessary for workers to use a riveting device to rivet the balanced valve core manually. After riveting, the end of the connection hole on the balanced valve core deforms towards the chamfer of the push rod, and finally wraps part of the chamfer to improve the connection stability and reliability between the balanced valve core and the push rod.

[0004] During the implementation of this application, it is found that at least the following problems exist in this technology: During the assembly process, it is necessary for workers to switch the balanced valve core and the push rod between the press-fitting device and the riveting device and control the two devices, which is easy to be in a hurry, time-consuming and laborious to operate, and the production efficiency is low. Summary of the Invention

[0005] In order to improve the assembly efficiency of the push rod and the balanced valve core and reduce the manual operation steps, this application provides a valve push rod press-fitting device.

[0006] The valve push rod press-fitting device provided by this application adopts the following technical solutions: A valve push rod pressing device, comprising a workbench, a bracket, and a processor. The bracket is located above the workbench and fixedly connected to the workbench. A sliding seat is slidably arranged on the workbench in the horizontal direction, and a first driving member for driving the sliding seat to slide is provided on the workbench. A pressing support seat and a riveting support seat are arranged on the sliding seat, and the pressing support seat and the riveting support seat are arranged at intervals along the sliding direction of the sliding seat. A first receiving groove for vertically placing the push rod is formed at the top of the pressing support seat, and the bottom wall of the first receiving groove can abut against the bottom of the push rod. A second receiving groove adapted to the balance valve core is formed at the top of the riveting support seat, and the bottom wall of the second receiving groove can abut against the bottom of the balance valve core. A third receiving groove for the push rod to extend into is formed on the bottom wall of the second receiving groove. A pressing block is slidably arranged on the bracket in the vertical direction, and a second driving member for driving the pressing block to slide is provided on the bracket. A pressing table and a riveting table are fixedly arranged at the bottom of the pressing block, and the pressing table and the riveting table are arranged at intervals along the sliding direction of the sliding seat. The pressing table is located directly above the pressing support seat. A loading assembly is arranged at the bottom of the pressing table, and the loading assembly is used for loading or releasing the balance valve core. A riveting head for riveting the balance valve core is arranged at the bottom of the riveting table. The first driving member, the second driving member, and the loading assembly are all electrically connected to the processor.

[0007] By adopting the above technical solution, when assembling the push rod and the balance valve core, the push rod is placed in the first receiving groove with the chamfered end facing upward. The balance valve core is loaded at the bottom of the pressing table through the loading assembly. At this time, the push rod is vertical and directly opposite to the connection hole of the balance valve core. Then, the first sliding of the pressing block: driven by the second driving member, the pressing table moves downward, pressing the balance valve core towards the push rod. The push rod passes through the connection hole of the balance valve core and is in interference fit with the push rod. Then, driven by the second driving member, the pressing block moves upward, and the pressing table brings the balance valve core and the push rod up together. Then, the first sliding of the sliding seat: the first driving member pushes the sliding seat to move, so that the riveting support seat is located directly below the pressing table. Then, the second sliding of the pressing block: the pressing block moves downward, the pressing table sends the balance valve core into the second receiving groove, and the push rod enters the third receiving groove. Then, after the loading assembly releases the balance valve core, the pressing block moves upward. Then, the second sliding of the sliding seat: the riveting support seat is located directly below the riveting table. Then, the third downward movement of the pressing block: the riveting head is pressed towards the balance valve core. After riveting, the end of the connection hole deforms towards the chamfer of the push rod and wraps part of the chamfer. Then, the pressing block moves upward, and the assembled push rod and balance valve core remain on the riveting table. Finally, the third sliding of the sliding seat makes the pressing support seat located below the pressing table again to complete the reset. The whole process reduces the steps of manual movement of parts between different devices and operation of devices, improves the automation degree, improves the production efficiency, and eliminates the need for manual turnover of parts.

[0008] Preferably, the loading assembly includes an electric suction cup, and the electric suction cup is fixedly connected to the pressing table and can suck the balance valve core.

[0009] By adopting the above technical solution, when the electric suction cup is started, the electric suction cup generates suction and quickly sucks the balance valve core to ensure that the balance valve core will not be displaced or dropped during transportation. When the balance valve core needs to be released, the electric suction cup is closed, the suction disappears, and the balance valve core is placed in the second receiving groove.

[0010] Preferably, the loading assembly also includes a positioning member, the electric suction cup is located inside the positioning member, the positioning member is fixedly connected to the pressing table, a positioning groove adapted to the balancing valve core is provided at the bottom of the positioning member, and the top wall of the positioning groove can be abutted against the top of the balancing valve core.

[0011] By adopting the above technical solution, the positioning member and the positioning groove at the bottom provide positioning for the balancing valve core. After the balancing valve core is placed in the positioning groove, the electric suction cup can suck the balancing valve core to ensure the positioning accuracy of the connecting hole and the push rod; the top wall of the positioning groove abuts against the top of the balancing valve core, ensuring that the top wall of the positioning groove provides reliable and uniform pressure on the balancing valve core when the balancing valve core is pressed against the push rod.

[0012] Preferably, a rotating frame is fixedly provided on the slide, the press-fitting bracket is rotatably connected to the rotating frame, the rotation axes of the press-fitting bracket and the rotating frame are arranged in the horizontal direction and perpendicular to the sliding direction of the slide, and a deflection component for driving the press-fitting bracket to rotate is provided on the workbench.

[0013] By adopting the above technical solution, after the push rod and the balancing valve core are connected, the press-fitting platform is no longer directly below the press-fitting bracket. At this time, the deflection assembly can drive the press-fitting bracket to deflect. On the one hand, the press-fitting bracket is tilted and the height of the press-fitting bracket is lowered, which helps to prevent the riveting platform from contacting the press-fitting bracket when the pressure block goes down for the second time; on the other hand, the first accommodating groove becomes inclined or horizontal, reducing the interference of the bracket on the insertion of the new push rod into the first accommodating groove.

[0014] Preferably, the deflection assembly includes a rack and a gear, the rack is fixedly connected to the workbench and extends along the sliding direction of the slide, the gear is rotationally connected to the rotating frame, the gear is coaxial and fixedly connected to the press-fit bracket, and the gear and the rack are meshed with each other.

[0015] By adopting the above technical solution, when the slide slides, the gear meshes and rotates with the rack fixed on the workbench as the slide moves, thereby driving the press-fitting bracket to automatically deflect. No additional power source is required to control the rotation of the press-fitting bracket, and the meshing of the gear and the rack ensures that no matter where the slide slides to, the deflection angle of the press-fitting bracket is specific, and uncontrollable deflection will not occur. This can ensure that when the press-fitting bracket is located directly below the press-fitting table, the opening of the first accommodating groove of the press-fitting bracket faces upward.

[0016] Preferably, a loading table is fixedly arranged on the workbench. A preloading groove is formed through the top of the loading table along the sliding direction of the sliding seat, and the push rod can be horizontally placed in the preloading groove. The first receiving groove can deflect with the pressing support seat to face the end of the preloading groove close to the sliding seat. A pushing block is slidably arranged in the preloading groove at the end far from the sliding seat along the sliding direction of the sliding seat. The pushing block can abut against the push rod in the preloading groove, and a third driving member for driving the pushing block to slide is further arranged on the loading table.

[0017] By adopting the above technical solution, the push rod is horizontally placed in the preloading groove. When the sliding seat slides to a specific position, the gear meshes with the rack, so that the first receiving groove faces the end of the preloading groove close to the sliding seat with the pressing support seat. At this time, the third driving member pushes the pushing block to slide in the preloading groove along the opening direction. Under the push of the pushing block, the push rod is pushed into the first receiving groove, realizing the automatic replenishment of the push rod in the first receiving groove. It not only saves manpower, but also improves the loading efficiency and enhances the working continuity of the entire air valve push rod pressing device.

[0018] Preferably, a loading inclined plate is fixed obliquely on the top of the loading table. The bottom end of the loading inclined plate faces the notch of the preloading groove, and the push rod can roll into the preloading groove on the loading inclined plate.

[0019] By adopting the above technical solution, after the push rod in the preloading groove is sent into the first receiving groove, the pushing block resets. At this time, the preloading groove is emptied. Since the loading inclined plate is obliquely arranged and the bottom faces the notch of the preloading groove, under the action of gravity, the push rod will automatically roll along the inclined plate into the preloading groove, automatically and continuously replenishing the push rod in the preloading groove.

[0020] Preferably, side baffles are integrally formed on both sides of the loading inclined plate.

[0021] By adopting the above technical solution, during the process of the push rod rolling along the loading inclined plate, the side baffles prevent the push rod from accidentally rolling off from both sides of the inclined plate, ensuring the continuity and stability of the loading process. When the push rod in the preloading groove slides towards the first receiving groove, it may give the push rod in the loading inclined plate a movement tendency through contact. At this time, the side baffles can hinder the movement of the push rod in the loading inclined plate.

[0022] Preferably, it further includes a photoelectric sensor. The photoelectric sensor includes a transmitting end and a receiving end. The receiving end is fixed on one side of the loading table close to the sliding seat, and the transmitting end is fixed on the top of the pressing support seat. When the first receiving groove faces the end of the preloading groove close to the sliding seat, the transmitting end faces the receiving end, and the photoelectric sensor is electrically connected to the third driving member.

[0023] By adopting the above technical solution, when the first receiving groove rotates with the press-fitting support to face the end of the preloading groove close to the sliding seat, the transmitting end is directly opposite to the receiving end. At this time, the signal emitted by the transmitting end is received by the receiving end, and the opposed type sensor sends an instruction to the third driving member. The third driving member is activated and drives the pushing block to slide, pushing the push rod in the preloading groove into the first receiving groove. When the receiving end does not receive the signal, it means that the first receiving groove has not yet faced the end of the preloading groove close to the sliding seat, and the opposed type sensor does not send an instruction to the third driving member, and the third driving member does not work. Through the setting of the opposed type sensor, the automatic detection of whether the first receiving groove faces the end of the preloading groove close to the sliding seat is realized, and then the working state of the third driving member is controlled.

[0024] Preferably, when the first receiving groove faces the end of the preloading groove close to the sliding seat, the riveting table is directly above the riveting support.

[0025] By adopting the above technical solution, when the first receiving groove faces the end of the preloading groove close to the sliding seat, the riveting table is exactly above the riveting support. At the same moment, the device can carry out two tasks in parallel: on the one hand, the push rod can be pushed from the preloading groove to the first receiving groove to complete the feeding preparation process of the new push rod; on the other hand, the riveting table can perform the riveting operation on the combination of the balanced valve core and the push rod that has completed the press-fitting step on the riveting support. This reduces the idle time of the equipment, makes each work process closely connected, speeds up the product output speed, and improves the production efficiency.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting the sliding seat, the first driving member, the press-fitting support, the riveting support, the first receiving groove, the second receiving groove, the third receiving groove, the pressing block, the second driving member, the press-fitting table, the riveting table, the loading assembly, the riveting head, and the processor, the automatic connection of the press-fitting and riveting processes of the push rod and the balanced valve core is realized, reducing the steps of manual frequent switching operations between different devices, greatly improving the assembly efficiency, and reducing the manual labor intensity; 2. By setting the electric suction cup, the positioning member, and the positioning groove, the balanced valve core is stably grabbed by the suction force of the electric suction cup, and with the cooperation of the positioning member and the positioning groove, the position accuracy of the balanced valve core during handling and press-fitting is ensured, ensuring the accurate docking of the connection hole and the push rod. At the same time, the top wall of the positioning groove can provide reliable and uniform pressure for the balanced valve core, improving the press-fitting quality; 3. By setting the rotating frame, the deflection assembly, the rack, the gear, the feeding table, the preloading groove, the pushing block, the third driving member, and the feeding inclined plate, the automatic feeding of the push rod to the first receiving groove is realized. The push rod can automatically move from the feeding table to the preloading groove and finally be replenished to the first receiving groove, further improving the working efficiency and coherence of the air valve push rod press-fitting device. Description of the Drawings

[0027] Figure 1 It is a schematic cross-sectional view of the push rod and the balance valve core after assembly in the embodiment of the present application.

[0028] Figure 2 It is a schematic structural view of a valve push rod pressing device provided in the embodiment of the present application.

[0029] Figure 3 is Figure 2 The enlarged view of part A in

[0030] Figure 4 It is a schematic cross-sectional view of the slide base, the pressing support base, and the riveting support base in the embodiment of the present application.

[0031] Figure 5 It is a schematic cross-sectional view of the pressing block, the pressing table, and the riveting table in the embodiment of the present application.

[0032] Figure 6 It is a schematic cross-sectional view of the loading table in the embodiment of the present application.

[0033] Explanation of reference numerals: 1, workbench; 11, bracket; 12, first driving member; 13, second driving member; 2, slide base; 21, pressing support base; 211, first accommodating groove; 22, riveting support base; 221, second accommodating groove; 222, third accommodating groove; 23, rotating frame; 3, pressing block; 31, pressing table; 32, riveting table; 321, riveting head; 4, loading assembly; 41, positioning member; 411, positioning groove; 42, electric suction cup; 5, deflection assembly; 51, rack; 52, gear; 6, loading table; 61, preloading groove; 611, pushing block; 62, third driving member; 63, loading inclined plate; 631, side baffle; 71, transmitting end; 72, receiving end; 8, push rod; 81, chamfer; 9, balance valve core; 91, connecting hole. Detailed implementation manners

[0034] The following will Figures 1-6 further describe the present application in detail in conjunction with the attached

[0035] Refer to Figure 1 , Figure 1 shows the state after the push rod 8 and the balance valve core 9 are assembled. Among them, the balance valve core 9 and the push rod 8 are two independent parts before assembly. A connecting hole 91 for inserting the push rod 8 is provided on the balance valve core 9, and an interference fit is provided between the push rod 8 and the connecting hole 91. The push rod 8 is provided with a chamfer 81 at one end passing through the connecting hole 91. After the push rod 8 passes through the connecting hole 91, the balance valve core 9 needs to be riveted. After riveting, the end of the connecting hole 91 on the balance valve core 9 deforms towards the chamfer 81 of the push rod 8 and finally wraps the local chamfer 81.

[0036] This embodiment of the present application discloses a valve push rod press-fitting device. Refer to Figure 2 , which includes a workbench 1, a bracket 11, and a processor. Among them, the processor can adopt a PLC controller. The bracket 11 is located above the workbench 1 and is fixedly connected to the workbench 1. A sliding seat 2 is slidably arranged on the workbench 1 in the horizontal direction, and a first driving member 12 for driving the sliding seat 2 to slide is provided on the workbench 1. In this embodiment, the first driving member 12 is an electric push rod. The first driving member 12 is fixedly connected to the workbench 1, the output end of the first driving member 12 is fixedly connected to the sliding seat 2, the first driving member 12 is electrically connected to the processor, and the action of the first driving member 12 is controlled by the processor.

[0037] Refer to Figure 2 And Figure 3 , a press-fitting support 21 and a riveting support 22 are arranged on the sliding seat 2, and the press-fitting support 21 and the riveting support 22 are arranged at intervals along the sliding direction of the sliding seat 2. Specifically, a rotating frame 23 is fixedly arranged on the sliding seat 2, and the press-fitting support 21 is rotatably connected to the rotating frame 23. The rotation axis of the press-fitting support 21 and the rotating frame 23 is arranged in the horizontal direction and is perpendicular to the sliding direction of the sliding seat 2. A deflection assembly 5 for driving the press-fitting support 21 to rotate is arranged on the workbench 1. The riveting support 22 is fixedly connected to the sliding seat 2.

[0038] Refer to Figure 3 And Figure 4 , a first accommodation groove 211 for vertically placing the push rod 8 is opened at the top of the press-fitting support 21, and the bottom wall of the first accommodation groove 211 can abut against the bottom of the push rod 8. A second accommodation groove 221 adapted to the balance valve core 9 is opened at the top of the riveting support 22, and the bottom wall of the second accommodation groove 221 can abut against the bottom of the balance valve core 9. A third accommodation groove 222 for the push rod 8 to extend into is opened on the bottom wall of the second accommodation groove 221.

[0039] Refer to Figure 3 , a pressing block 3 is slidably arranged in the vertical direction below the bracket 11, and a second driving member 13 for driving the pressing block 3 to slide is provided on the bracket 11. In this embodiment, the second driving member 13 is also an electric push rod. The second driving member 13 is fixedly connected to the top of the bracket 11, the output end of the second driving member 13 penetrates the bracket 11 and is fixedly connected to the pressing block 3. The second driving member 13 is electrically connected to the processor, and the action of the second driving member 13 is controlled by the processor. A press-fitting table 31 and a riveting table 32 are fixedly arranged at the bottom of the pressing block 3. The press-fitting table 31 and the riveting table 32 are arranged at intervals along the sliding direction of the sliding seat 2, and the press-fitting table 31 is located directly above the press-fitting support 21.

[0040] Refer to Figure 3 And Figure 5, a loading component 4 is provided at the bottom of the pressing table 31. The loading component 4 is used to load or release the balance valve core 9. Specifically, the loading component 4 includes an electric suction cup 42 and a positioning member 41. The positioning member 41 is fixedly connected to the pressing table 31. A positioning groove 411 adapted to the balance valve core 9 is provided at the bottom of the positioning member 41, and the top wall of the positioning groove 411 can abut against the top of the balance valve core 9. The electric suction cup 42 is embedded in the positioning member 41. The electric suction cup 42 is fixedly connected to the pressing table 31 through the positioning member 41, and the electric suction cup 42 can suck the balance valve core 9. The electric suction cup 42 is electrically connected to the processor, and the operation of the electric suction cup 42 is controlled by the processor. A riveting head 321 for riveting the balance valve core 9 is fixedly provided at the bottom of the riveting table 32.

[0041] Refer to Figure 2 , the deflection component 5 includes a rack 51 and a gear 52. The rack 51 is fixedly connected to the workbench 1 and extends along the sliding direction of the sliding seat 2. The gear 52 is rotatably connected to the rotating frame 23. The gear 52 is coaxially and fixedly connected to the pressing support 21, and the gear 52 meshes with the rack 51.

[0042] Refer to Figure 2 With Figure 6 , a loading table 6 is fixedly provided on the workbench 1. A preloading groove 61 penetrating both side walls is provided at the top of the loading table 6 along the sliding direction of the sliding seat 2. The preloading groove 61 can accommodate the push rod 8 horizontally. The first accommodating groove 211 can be deflected to face the preloading groove 61 at one end close to the sliding seat 2. Specifically, as the sliding seat 2 moves, the gear 52 meshes with the rack 51, causing the first accommodating groove 211 to deflect. When the riveting table 32 is directly above the riveting support 22, the first accommodating groove 211 deflects to face the preloading groove 61 at one end close to the sliding seat 2.

[0043] Refer to Figure 2 With Figure 6 , a pushing block 611 is slidably arranged in the preloading groove 61 at one end away from the sliding seat 2 along the sliding direction of the sliding seat 2. The pushing block 611 can abut against the push rod 8 in the preloading groove 61. A third driving member 62 for driving the pushing block 611 to slide is further provided on the loading table 6. In this embodiment, the third driving member 62 is also an electric push rod. The third driving member 62 is fixedly connected to the loading table 6, and the output end of the third driving member 62 is fixedly connected to the pushing block 611.

[0044] Refer to Figure 2 With Figure 6, The valve push rod 8 press-fitting device further includes an opposed-type sensor, which includes a transmitting end 71 and a receiving end 72. The receiving end 72 is fixed and embedded on one side of the loading table 6 close to the sliding seat 2, and the transmitting end 71 is fixed and embedded on the top of the press-fitting support base 21. When the first receiving groove 211 faces the preloading groove 61 at one end close to the sliding seat 2, the transmitting end 71 is directly opposite to the receiving end 72. The opposed-type sensor is electrically connected to the third driving member 62 through a processor. Specifically, when the receiving end 72 receives the signal from the sending end, the processor controls the third driving member 62 to perform a reciprocating motion once, and pushes the push rod 8 in the preloading groove 61 into the first receiving groove 211.

[0045] Refer to Figure 2 With Figure 6 , The top of the loading table 6 is inclined and fixed with a loading inclined plate 63. The bottom end of the loading inclined plate 63 faces the notch of the preloading groove 61, and the loading inclined plate 63 allows the push rod 8 to roll into the preloading groove 61. The top of the loading table 6 is inclined and fixed with a loading inclined plate 63. The bottom end of the loading inclined plate 63 faces the notch of the preloading groove 61, and the loading inclined plate 63 allows the push rod 8 to roll into the preloading groove 61.

[0046] The implementation principle of a valve push rod 8 press-fitting device according to an embodiment of the present application is as follows: Before assembling the push rod 8 and the balance valve core 9, the operator first places a number of push rods 8 on the loading inclined plate 63 in sequence. The push rod 8 at the lowest position on the loading inclined plate 63 rolls into the preloading groove 61 under the action of gravity. The operator vertically places a push rod 8 into the first receiving groove 211 of the press-fitting support base 21, with the end of the push rod 8 with a chamfer 81 facing upward. The operator sends the balance valve core 9 into the positioning groove 411, and the electric suction cup 42 sucks the balance valve core 9 at the bottom of the press-fitting table 31. At this time, the connection holes 91 of the push rod 8 and the balance valve core 9 are aligned.

[0047] After starting the device, the processor controls the second driving member 13, the first driving member 12, and the electric suction cup 42 to act automatically. First, the pressing block 3 moves downward for the first time, and the press-fitting table 31 drives the balance valve core 9 downward, so that the push rod 8 passes through the connection hole 91 of the balance valve core 9 and forms an interference fit. Subsequently, the pressing block 3 moves upward, lifting the balance valve core 9 and the push rod 8 together. Then, the sliding seat 2 moves for the first time, so that the riveting support base 22 is located directly below the press-fitting table 31.

[0048] After that, the pressing block 3 moves downward for the second time, and the press-fitting table 31 sends the balance valve core 9 into the second receiving groove 221 of the riveting support base 22, and the push rod 8 enters the third receiving groove 222. At the same time, the balance valve core 9 releases the balance valve core 9. Subsequently, the pressing block 3 moves upward. After the pressing block 3 stabilizes, the electric suction cup 42 resumes suction again, and the operator replenishes a new balance valve core 9 into the positioning groove 411. While replenishing the new balance valve core 9, the sliding seat 2 moves for the second time, so that the riveting table 32 is located directly above the riveting support base 22.

[0049] During the movement of the slide 2, the gear 52 meshes with the rack 51, and the first receiving groove 211 deflects with the press-fit bracket 21 to face the pre-loading groove 61 close to the end of the slide 2. At this time, the transmitting end 71 of the through-beam sensor is aligned with the receiving end 72, and the signal emitted by the transmitting end 71 is received by the receiving end 72. The through-beam sensor sends a command to the third driving member 62 through the processor. The third driving member 62 is started, driving the push block 611 to perform a reciprocating motion, pushing the push rod 8 in the pre-loading groove 61 into the first receiving groove 211, and completing the loading preparation of the new push rod 8. After the push block 611 is reset, the pre-loading groove 61 is vacant, and the push rod 8 on the loading ramp 63 rolls into the pre-loading groove 61.

[0050] When the riveting platform 32 is located directly above the riveting support 22, the pressing block 3 moves downward for the third time, and the riveting block 3 drives the riveting head 321 to rivet the balance valve core 9. After riveting, the end of the connecting hole 91 is deformed toward the chamfer 81 of the push rod 8 and covers the local chamfer 81. Then, the pressing block 3 moves upward, and the assembled push rod 8 and the balance valve core 9 are left on the riveting platform 32, and the operator can directly take them out. Among them, the riveting action of the balance valve core 9 is carried out simultaneously with the supplementary action of the push rod 8 in the first receiving groove 211, which improves the assembly efficiency. Finally, the slide 2 moves for the third time to reset, so that the press-fitting support 21 is reset below the press-fitting platform 31 again. In this process, the gear 52 engages the rack 51, so that the press-fitting support 21 is reversely deflected, and the new push rod 8 in the pre-loading groove 61 is vertically upward, and is vertically opposite to the connecting hole of the new balance valve core 9 that is newly added in the positioning groove 411, thus completing a working cycle. In this way, the assembly efficiency of the push rod 8 and the balance valve core 9 is improved, and the manual operation steps are reduced.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An air valve push rod pressing device, comprising a workbench (1), a bracket (11), and a processor. The bracket (11) is located above the workbench (1) and is fixedly connected to the workbench (1). It is characterized in that: A sliding seat (2) is slidably arranged on the workbench (1) in the horizontal direction, and a first driving member (12) for driving the sliding seat (2) to slide is arranged on the workbench (1); a pressing support (21) and a riveting support (22) are arranged on the sliding seat (2), and the pressing support (21) and the riveting support (22) are arranged at intervals along the sliding direction of the sliding seat (2); a first receiving groove (211) for vertically placing the push rod (8) is formed in the top of the pressing support (21), and the bottom wall of the first receiving groove (211) can abut against the bottom of the push rod (8); a second receiving groove (221) adapted to the balance valve core (9) is formed in the top of the riveting support (22), and the bottom wall of the second receiving groove (221) can abut against the bottom of the balance valve core (9), and a third receiving groove (222) for the push rod (8) to extend into is formed in the bottom wall of the second receiving groove (221); a pressing block (3) is slidably arranged on the bracket (11) in the vertical direction, and a second driving member (13) for driving the pressing block (3) to slide is arranged on the bracket (11); a pressing platform (31) and a riveting platform (32) are fixedly arranged at the bottom of the pressing block (3), the pressing platform (31) and the riveting platform (32) are arranged at intervals along the sliding direction of the sliding seat (2), and the pressing platform (31) is located directly above the pressing support (21); a loading assembly (4) is arranged at the bottom of the pressing platform (31), and the loading assembly (4) is used for loading or releasing the balance valve core (9), and a riveting head (321) for riveting the balance valve core (9) is arranged at the bottom of the riveting platform (32); the first driving member (12), the second driving member (13), and the loading assembly (4) are all electrically connected to the processor.

2. The valve push rod pressing device according to claim 1, characterized in that: The loading assembly (4) includes an electric suction cup (42), the electric suction cup (42) is fixedly connected to the pressing platform (31), the electric suction cup (42) can suck the balance valve core (9), and the electric suction cup (42) is electrically connected to the processor.

3. The valve push rod pressing device according to claim 2, characterized in that: The loading assembly (4) further includes a positioning member (41), the electric suction cup (42) is located in the positioning member (41), the positioning member (41) is fixedly connected to the pressing platform (31), a positioning groove (411) adapted to the balance valve core (9) is formed in the bottom of the positioning member (41), and the top wall of the positioning groove (411) can abut against the top of the balance valve core (9).

4. The valve push rod press-fitting device according to claim 1, wherein: A rotating frame (23) is fixedly arranged on the sliding seat (2), the pressing support (21) is rotatably connected to the rotating frame (23), the rotation axis of the pressing support (21) and the rotating frame (23) is arranged in the horizontal direction and is perpendicular to the sliding direction of the sliding seat (2), and a deflection assembly (5) for driving the pressing support (21) to rotate is arranged on the workbench (1).

5. The valve push rod press-fitting device according to claim 4, characterized in that: The deflection assembly (5) includes a rack (51) and a gear (52). The rack (51) is fixedly connected to the workbench (1) and extends along the sliding direction of the slide (2). The gear (52) is rotatably connected to the rotating frame (23). The gear (52) is coaxially and fixedly connected to the pressing bracket (21). The gear (52) meshes with the rack (51).

6. The valve push rod press-fitting device according to claim 4, characterized in that: A loading table (6) is fixedly arranged on the workbench (1). A preloading groove (61) penetrating through both side walls is formed at the top of the loading table (6) along the sliding direction of the slide (2). The preloading groove (61) can accommodate the push rod (8) horizontally. The first receiving groove (211) can deflect with the pressing bracket (21) to be aligned with the preloading groove (61) at one end close to the slide (2). A pushing block (611) is slidably arranged in the preloading groove (61) at one end far from the slide (2) along the sliding direction of the slide (2). A third driving member (62) for driving the pushing block (611) to slide is further arranged on the loading table (6).

7. The valve push rod pressing device according to claim 6, wherein: The top of the loading table (6) is inclined and fixedly provided with a loading inclined plate (63). The bottom end of the loading inclined plate (63) faces the notch of the preloading groove (61).

8. The valve push rod press-fitting device according to claim 7, characterized in that: Side baffles (631) are integrally formed on both sides of the loading inclined plate (63).

9. The press-fitting device for a valve push rod according to claim 6, wherein: It further includes a pair of photoelectric sensors. The pair of photoelectric sensors includes a transmitting end (71) and a receiving end (72). The receiving end (72) is fixed on one side of the loading table (6) close to the slide (2). The transmitting end (71) is fixed on the top of the pressing bracket (21). When the first receiving groove (211) is aligned with the preloading groove (61) at one end close to the slide (2), the transmitting end (71) is aligned with the receiving end (72). The pair of photoelectric sensors is electrically connected to the third driving member (62).

10. A valve push rod press-fitting device according to claim 6, characterized in that: When the first receiving groove (211) is aligned with the preloading groove (61) at one end close to the slide (2), the riveting table (32) is located directly above the riveting bracket (22).

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