Self-positioning press-fitting mechanism for air valve pump end cover

Abstract

The utility model discloses an air valve pump end cover self-positioning press-fitting mechanism which comprises a bottom plate, a valve pump body positioning assembly is arranged on the bottom plate, and the valve pump body positioning assembly is movably connected with the bottom plate. End cover positioning assemblies are arranged on the two sides of the valve pump body positioning assembly correspondingly, and the two end cover positioning assemblies are the same in structure and are oppositely arranged; two end cover press-fitting assemblies are arranged on the side, away from the valve pump body positioning assembly, of the end cover positioning assembly, and the two end cover press-fitting assemblies are oppositely arranged. Through accurate positioning of the valve pump body positioning assembly and automatic operation of the end cover positioning assembly and the end cover press-fitting assembly, it is ensured that an air cylinder end cover is accurately assembled into an assembly hole corresponding to an air valve pump, the assembly accuracy is greatly improved, manual intervention is reduced through the automatic press-fitting process, and the production efficiency is improved. The labor intensity of workers is reduced, the assembling speed is increased, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of air valve pump assembly, in particular to a self-positioning press-fitting mechanism for an end cover of an air valve pump. Background Art

[0002] The air valve pump is mainly used in the automobile air suspension system to control the inflation and exhaust and adjust the body posture. It is a solenoid valve. When assembling the cylinder end cover of the existing air valve pump, the cylinder end cover is usually manually pressed into the mounting holes on both sides of the air valve pump. Since the valve pump body cannot be accurately positioned and the manual pressing force is different, it is easy for the cylinder end cover to be assembled too tight or too loose, making it difficult to ensure the assembly accuracy. In addition, unqualified products need to be manually reworked, which not only increases production costs, but also greatly reduces product production efficiency. Summary of the invention

[0003] In view of this, the purpose of the present invention is to provide a self-positioning press-fitting mechanism for an air valve pump end cover to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] An air valve pump end cover self-positioning press-fitting mechanism comprises a base plate; a valve pump body positioning assembly is arranged on the base plate, wherein the valve pump body positioning assembly is movably connected to the base plate; end cover positioning assemblies are arranged on both sides of the valve pump body positioning assembly, wherein two groups of end cover positioning assemblies have the same structure and are arranged opposite to each other; an end cover pressing assembly is arranged on the side of the end cover positioning assembly away from the valve pump body positioning assembly, wherein two groups of end cover pressing assemblies are arranged opposite to each other; a lifting cylinder is installed at the bottom of the base plate, wherein a limit pin is arranged at the top end of the piston rod of the lifting cylinder; hydraulic buffers are arranged on both sides of the end cover positioning assembly, wherein the front end of the hydraulic buffer passes through the end cover positioning assembly and is connected to the valve pump body positioning assembly.

[0006] Preferably, the valve pump body positioning assembly includes a movable plate, wherein two sliders are symmetrically installed at the lower end of the movable plate, and a slide rail compatible with the sliders is provided on the bottom plate; a fixed frame is provided above the movable plate, wherein a positioning plate is provided at the top of the fixed frame; a pneumatic cylinder is installed in the fixed frame, wherein the pneumatic cylinder is arranged below the positioning plate; a lifting plate is provided at the top of the piston rod of the pneumatic cylinder, wherein positioning pins are respectively installed at both ends of the lifting plate; a limiting hole compatible with the positioning pin is provided on the positioning plate, wherein the top of the positioning pin passes through the limiting hole corresponding to it and extends upward; a valve pump body is provided on the positioning plate, wherein the mounting holes provided around the valve pump body correspond one to one with the limiting holes provided on the positioning plate.

[0007] Preferably, a support frame is provided on one side of the fixed frame, wherein a support arm is provided on the upper end of the support frame; the support arm extends toward one side of the fixed frame, wherein a first double-axis cylinder is provided under the support arm; the first double-axis cylinder corresponds to the positioning plate, wherein a contoured pressure block is fixedly connected to the top end of the piston rod of the first double-axis cylinder.

[0008] Preferably, the end cover positioning assembly includes a base, wherein a fixing plate is provided above the base; a mounting groove is provided at the upper end of the base, wherein a avoidance groove adapted to the mounting groove is provided at the lower end of the fixing plate close to the mounting groove; a mounting plate is provided in the mounting groove, wherein a slide plate is movably connected above the mounting plate; a guide block is fixedly installed on the slide plate, wherein an end cover positioning piece is provided on the side of the guide block close to the valve pump body positioning assembly.

[0009] Preferably, the guide block is provided with a first guide groove on one side close to the fixed plate, wherein a second guide groove arranged opposite to the first guide groove is provided on the inner side of the fixed plate; a second double-axis cylinder is installed on the inner side of the fixed plate, wherein the top end of the piston rod of the second double-axis cylinder is fixedly connected to a push block; the top end of the push block extends between the first guide groove and the second guide groove, and slides along the first guide groove and the second guide groove.

[0010] Preferably, the front end of the push block is an inclined surface, wherein the first guide slot is provided with an oblique opening matched with the inclined surface.

[0011] Preferably, a first guide hole is opened in the middle of the guide block, wherein a second guide hole corresponding to the first guide hole is opened on the fixed plate, and the aperture of the second guide hole is the same as the aperture of the first guide hole; a positioning hole is opened in the middle of the end cover positioning piece, wherein the positioning hole is connected with the first guide hole; a third guide hole is opened on the push block, wherein the third guide hole corresponds to the first guide hole and the second guide hole respectively.

[0012] Preferably, a single-line linear bearing is provided at the lower end of the skateboard, wherein the outer wall of the single-line linear bearing is fixedly connected to the skateboard through a connecting plate; a guide shaft is slidably connected inside the single-line linear bearing, wherein the outer wall of the guide shaft is sleeved with an ultra-light load spring; a first guide rod seat and a second guide rod seat are respectively provided on both sides of the mounting plate, wherein both ends of the guide shaft are respectively fixedly connected to the first guide rod seat and the second guide rod seat; one end of the ultra-light load spring is connected to the single-line linear bearing, wherein the other end of the ultra-light load spring is fixedly connected to the first guide rod seat.

[0013] Preferably, two linear sliders are symmetrically mounted on the lower end of the slide plate, wherein a linear slide rail matched with the linear sliders is disposed on the mounting plate.

[0014] Preferably, the end cover pressing assembly includes a mounting seat, wherein an electric cylinder mounting plate is provided above the mounting seat; a servo electric cylinder is provided on one side of the electric cylinder mounting plate, wherein the piston rod of the servo electric cylinder penetrates the electric cylinder mounting plate and extends forward; a sliding seat is provided on the side of the electric cylinder mounting plate away from the servo electric cylinder, wherein the sliding seat is movably connected to the mounting seat; a connecting assembly is provided on the side of the sliding seat close to the electric cylinder mounting plate, wherein an end cover pressing head is fixedly installed on the other side of the sliding seat.

[0015] Preferably, two guide rail sliders are symmetrically mounted on the bottom of the sliding seat, wherein the upper end of the mounting seat is provided with a linear guide rail matched with the guide rail sliders.

[0016] Preferably, the connecting assembly includes a floating joint, a pressure sensor and a protective buckle plate, wherein the protective buckle plate cover is arranged on the outside of the floating joint and the pressure sensor and is fixedly connected to the sliding seat; the pressure sensor is arranged between the floating joint and the sliding seat, wherein the end of the floating joint away from the pressure sensor passes through the protective buckle plate and is fixedly connected to the top of the piston rod of the servo electric cylinder.

[0017] Preferably, a linear displacement sensor is provided on one side of the electric cylinder mounting plate, wherein the linear displacement sensor is fixedly connected to the electric cylinder mounting plate through a sensor connecting plate; a displacement connector is provided at the front end of the telescopic rod of the linear displacement sensor, wherein the upper end of the displacement connector is fixedly connected to the sliding seat.

[0018] Preferably, a drag chain is provided on one side of the mounting seat close to the linear displacement sensor, wherein the upper end of the drag chain is fixedly connected to the side of the sliding seat; a drag chain slide is fixedly connected to the side of the mounting seat, wherein the lower end of the drag chain is fixedly connected to the drag chain slide.

[0019] Compared with the prior art, the technical solution of the present application has the following beneficial technical effects: the utility model ensures that the cylinder end cover is accurately assembled into the corresponding assembly hole of the air valve pump through the precise positioning of the valve pump body positioning assembly, and cooperates with the automated operation of the end cover positioning assembly and the end cover pressing assembly, thereby greatly improving the assembly accuracy, and the standardized and automated assembly process helps to maintain the consistency of product quality and improve the stability and reliability of the product. The use of an automated pressing process reduces manual intervention, reduces the labor intensity of workers, speeds up assembly, reduces the product rework rate caused by improper assembly, saves manpower and material resources, and thus reduces production costs, improves production efficiency, and brings substantial improvements to the assembly of air valve pumps.

[0020] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the connection between the valve pump body positioning assembly and the end cover positioning assembly of the utility model;

[0024] Figure 3 It is a side view of the connection between the valve pump body positioning assembly and the end cover positioning assembly of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the valve pump body positioning assembly of the utility model;

[0026] Figure 5 It is a structural schematic diagram of the end cover positioning assembly of the utility model;

[0027] Figure 6 It is a structural schematic diagram of the connection between the base and the fixing plate of the utility model;

[0028] Figure 7 It is a structural schematic diagram of the second double-axis cylinder and the push block of the utility model;

[0029] Figure 8 It is a structural schematic diagram of the connection between the guide block and the end cover positioning piece of the utility model;

[0030] Fig. 9 It is a structural schematic diagram of the guide block of the utility model;

[0031] Fig.10 This is a schematic diagram of the structure of the guide shaft and the mounting plate of the utility model;

[0032] Fig.11 It is a structural schematic diagram of the end cover press-fit assembly of the utility model;

[0033] Fig.12 The utility model is a structural schematic diagram of the connection between the linear displacement sensor and the sliding seat.

[0034] Among them: 1. Bottom plate; 2. Valve pump body positioning assembly; 201. Movable plate; 202. Fixed frame; 203. Positioning plate; 204. Pneumatic cylinder; 205. Lifting plate; 206. Positioning pin; 207. Limiting hole; 208. Support frame; 209. Support arm; 210. First double-axis cylinder; 211. Profile pressing block; 3. End cover positioning assembly; 301. Base; 302. Fixed plate; 303. Mounting groove; 304. Avoidance groove; 305. Mounting plate; 306. Slide plate; 307. Guide block; 308. End cover positioning piece; 4. End cover press-fit assembly; 401. Mounting seat; 402. Electric cylinder mounting plate; 403. Servo electric cylinder; 404. Sliding seat; 5. Valve pump body; 6. Sliding block; 7. Slide rail; 8. First guide slide groove; 9. Second guide slide groove; 10. The second double-axis cylinder; 11. Push block; 12. Inclined surface; 13. Bevel; 14. First guide hole; 15. Second guide hole; 16. Positioning hole; 17. Third guide hole; 18. Single-line linear bearing; 19. Connecting plate; 20. Guide shaft; 21. Ultra-light spring; 22. First guide rod seat; 23. Second guide rod seat; 24. Linear slider; 25. Linear slide rail; 26. Connecting assembly; 2601. Floating joint; 2602. Pressure sensor; 2603. Protective buckle plate; 27. End cover pressure head; 28. Guide rail slider; 29. ​​Linear guide rail; 30. Linear displacement sensor; 31. Sensor connecting plate; 32. Displacement connector; 33. Drag chain; 34. Drag chain slide; 35. Lifting cylinder; 36. Limit pin; 37. Pin hole; 38. Hydraulic buffer. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] Please refer to Figures 1 to 12To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air valve pump end cover self-positioning press-fitting mechanism, comprising a base plate 1, which provides a stable working platform for other components; a valve pump body positioning component 2 is provided on the base plate 1, and the valve pump body positioning component 2 is movably connected to the base plate 1; end cover positioning components 3 are respectively provided on both sides of the valve pump body positioning component 2, wherein the two groups of end cover positioning components 3 have the same structure and are arranged oppositely; an end cover pressing component 4 is provided on the side of the end cover positioning component 3 away from the valve pump body positioning component 2, wherein the end cover pressing component 4 is provided with two groups and is arranged oppositely. The valve pump body positioning assembly 2 is installed on the base plate 1, wherein the valve pump body positioning assembly 2 is movably connected to the base plate 1, so as to facilitate fine adjustment of the displacement of the valve pump body 5. The valve pump body positioning assembly 2 is mainly used to ensure that the valve pump body 5 can be accurately placed in the predetermined position to prepare for the subsequent end cover assembly; a lifting cylinder 35 is installed at the bottom of the base plate 1, wherein the top end of the piston rod of the lifting cylinder 35 is provided with a limit pin 36, and the limit pin 36 passes through the base plate 1 upward; the lifting cylinder 35 and the limit pin 36 cooperate to mainly accurately position the valve pump body positioning assembly 2 and improve the stability of the valve pump body positioning assembly 2; hydraulic buffers 38 are respectively provided on both sides of the end cover positioning assembly 3, wherein the hydraulic buffers 38 The front end passes through the end cover positioning assembly 3 and is connected to the valve pump body positioning assembly 2, and the hydraulic buffer 38 is used to buffer and float the valve pump body positioning assembly 2; after the valve pump body 5 is correctly positioned, two groups of end cover positioning assemblies 3 with the same structure start to work, wherein the end cover positioning assemblies 3 are located on both sides of the valve pump body positioning assembly 2, and are arranged relative to each other, to ensure that the end cover can be accurately aligned with the installation hole of the valve pump body 5; after the end cover is correctly positioned, the end cover pressing assembly 4 located on the outside of the end cover positioning assembly 3 starts to work, and then the end cover is firmly pressed into the installation hole of the valve pump body 5, which greatly improves the assembly accuracy and production efficiency of the air valve pump end cover, while reducing human errors and rework rate, and reducing production costs.

[0037] Please refer to Figures 2 to 4As an embodiment of the utility model, the valve pump body positioning assembly 2 includes a movable plate 201, wherein two sliders 6 are symmetrically installed at the lower end of the movable plate 201, and a slide rail 7 compatible with the slider 6 is provided on the bottom plate 1; a lifting cylinder 35 is installed at the bottom of the bottom plate 1, wherein a limit pin 36 is provided at the top end of the piston rod of the lifting cylinder 35; a pin hole 37 compatible with the limit pin 36 is opened on the movable plate 201, wherein the limit pin 36 penetrates upward through the bottom plate 1 and is inserted into the pin hole 37, and the limit pin 36 cooperates with the pin hole 37 to accurately position the movable plate 201, thereby greatly improving the stability of the movable plate 201; a fixed frame 202 is provided above the movable plate 201, wherein a positioning plate 203 is provided at the top of the fixed frame 202; a pneumatic cylinder 204 is installed in the fixed frame 202, wherein the pneumatic cylinder 204 is arranged below the positioning plate 203 ; A lifting plate 205 is provided at the top of the piston rod of the pneumatic cylinder 204, wherein positioning pins 206 are respectively installed at both ends of the lifting plate 205; a limiting hole 207 adapted to the positioning pin 206 is provided on the positioning plate 203, wherein the top of the positioning pin 206 passes through the limiting hole 207 corresponding to it and extends upward; a valve pump body 5 is provided on the positioning plate 203, wherein the mounting holes provided around the valve pump body 5 correspond one to one with the limiting holes 207 provided on the positioning plate 203; a support frame 208 is provided on one side of the fixed frame 202, wherein a support arm 209 is provided on the upper end of the support frame 208; the support arm 209 extends toward one side of the fixed frame 202, wherein a first double-axis cylinder 210 is provided below the support arm 209; the first double-axis cylinder 210 corresponds to the positioning plate 203, wherein a contoured pressure block 211 is fixedly connected to the top of the piston rod of the first double-axis cylinder 210.

[0038] In the above-described scheme, before placing the valve pump body 5, the lifting cylinder 35 arranged under the bottom plate 1 drives the limit pin 36 to move upward through the piston rod, so that the limit pin 36 is inserted upward into the pin hole 37 opened on the movable plate 201, so that the limit pin 36 cooperates with the pin hole 37 to accurately position the movable plate 201; by arranging a fixing frame 202 above the movable plate 201, and installing a positioning plate 203 on the top of the fixing frame 202, wherein the positioning plate 203 provides a stable platform for the valve pump body 5, which is convenient for positioning and installing the valve pump body 5, and by installing a pneumatic cylinder 204 in the fixing frame 202, because the pneumatic cylinder 204 is arranged on Under the positioning plate 203, when the pneumatic cylinder 204 is started, its piston rod will push the lifting plate 205 to move up and down under the positioning plate 203. Positioning pins 206 are respectively installed at both ends of the lifting plate 205, wherein the positioning pins 206 correspond to the limiting holes 207 provided on the positioning plate 203. When the lifting plate 205 rises, the positioning pins 206 will pass through the limiting holes 207 and extend upward, so that the top of the positioning pins 206 is directly inserted into the mounting holes provided around the valve pump body 5, which plays a role in accurately positioning the valve pump body 5; then the first double-axis cylinder 210 is started to drive the piston rod to extend downward, so that the piston rod drives the contour The pressing block 211 moves downward, and the valve pump body 5 is pressed by the profiling pressing block 211 to ensure that the valve pump body 5 will not move or shake during the assembly process. The positioning plate 203 and the profiling pressing block 211 cooperate with each other to achieve accurate positioning and pressing of the valve pump body 5. At the same time, the lifting cylinder 35 arranged under the bottom plate 1 drives the piston rod to retract downward and drives the limit pin 36 to move downward, so that it is moved out of the pin hole 37 opened on the movable plate 201, so as to facilitate the subsequent cylinder head press-fitting operation. When the cylinder head press-fitting is completed, the lifting cylinder 35 under the bottom plate 1 pushes the limit pin 36 upward to insert it into the pin hole 37, and the movable plate 201 is pressed. Precisely position the support, then control the pneumatic cylinder 204 to retract downward and drive the positioning pin 206 to move downward, so that the positioning pin 206 moves out of the mounting hole opened around the valve pump body 5 and returns to the initial position, then control the first double-axis cylinder 210 to drive the piston rod to retract upward, so that the piston rod drives the contoured pressure block 211 to move upward, and release the pressure on the valve pump body 5; finally, the valve pump body 5 on the positioning plate 203 is removed by the robot and moved to the next process, where the valve pump body positioning assembly 2 and the lifting cylinder 35 wait for the next pressing operation, and repeat the above actions, which can effectively improve the continuity and efficiency of the end cover pressing.

[0039] Please refer to Figures 5 to 10As an embodiment of the utility model, the end cover positioning assembly 3 includes a base 301, wherein a fixing plate 302 is provided above the base 301; a mounting groove 303 is provided at the upper end of the base 301, wherein a sideways groove 304 adapted to the mounting groove 303 is provided at the lower end of the fixing plate 302 near the mounting groove 303; a mounting plate 305 is provided in the mounting groove 303, wherein a slide plate 306 is movably connected above the mounting plate 305; a guide block 307 is fixedly installed on the slide plate 306, wherein the guide block 307 is positioned close to the valve pump body An end cover positioning piece 308 is provided on one side of the component 2; a first guide groove 8 is provided on the guide block 307 close to the fixed plate 302, wherein a second guide groove 9 arranged opposite to the first guide groove 8 is provided on the inner side of the fixed plate 302; a second double-axis cylinder 10 is installed on the inner side of the fixed plate 302, wherein a push block 11 is fixedly connected to the top end of the piston rod of the second double-axis cylinder 10; the top end of the push block 11 extends between the first guide groove 8 and the second guide groove 9, wherein the push block 11 can slide along the first guide groove 8 and the second guide groove 9.

[0040] In the above scheme, a mounting groove 303 is provided at the upper end of the base 301, wherein the mounting groove 303 is used to set movable parts such as a slide plate 306, a guide block 307 and an end cover positioning piece 308, and an avoidance groove 304 adapted to the mounting groove 303 is provided at the lower end of the fixed plate 302 near the side of the mounting groove 303, and the avoidance groove 304 cooperates with the mounting groove 303 to ensure that the movable parts will not be hindered by the fixed plate 302 when moving; a mounting plate 305 is provided at the bottom of the mounting groove 303, and the slide plate 306 is movably connected above the mounting plate 305, so that the slide plate 306 can slide flexibly on the mounting plate 305 and adjust its displacement; a guide block 307 is fixedly installed on the slide plate 306, and an end cover positioning piece 308 is provided on the side of the guide block 307 near the valve pump body positioning assembly 2, wherein the end cover positioning piece 308 is used to accurately align The position of the end cover is accurately and fixed to prepare for the subsequent pressing operation; a first guide slot 8 is provided on the guide block 307 near the side of the fixed plate 302, wherein a second guide slot 9 arranged opposite to the first guide slot 8 is provided on the inner side of the fixed plate 302, and these two slots together provide precise guidance for the movement of the push block 11; a second double-axis cylinder 10 is installed on the inner side of the fixed plate 302, and when it is necessary to push the slide plate 306 to drive the end cover positioning member 308 to position the end cover, the second double-axis cylinder 10 is started and drives the piston rod to push the push block 11 forward, wherein the push block 11, under the push of the second double-axis cylinder 10, will slide along the first guide slot 8 and the second guide slot 9, thereby pushing the slide plate 306 to drive the guide block 307 to move toward the side of the valve pump body 5, thereby making the end cover positioning member 308 and the assembly hole on the valve pump body 5 perform precise positioning operations.

[0041] Please refer to Figure 7 , Fig. 9As an embodiment of the utility model, a front end of the push block 11 is provided with an inclined surface 12 , wherein the first guide slot 8 is provided with an inclined opening 13 matched with the inclined surface 12 .

[0042] In the above scheme, the inclination angle of the inclined surface 12 is 10 to 30 degrees, wherein the cross section of the front end of the push block 11 is in the shape of a right-angled trapezoid, and the inclination angle of the inclined opening 13 opened at the front end of the first guide slot 8 is the same as the inclination angle of the inclined surface 12. When the push block 11 moves forward under the push of the second double-axis cylinder 10, the inclined surface 12 opened at the front end of the push block 11 will contact the inclined opening 13, wherein the design of the inclined opening 13 is not only to adapt to the inclined surface 12 of the push block 11, but more importantly, the inclined opening 13 can play a guiding role in the movement of the push block 11; when the second double-axis cylinder 10 is started, its piston rod begins to extend and push The push block 11 moves forward. As the push block 11 moves, the inclined surface 12 at the front end of the push block 11 gradually approaches and finally contacts the inclined opening 13 in the first guide slot 8. Once the inclined surface 12 contacts the inclined opening 13, the inclined opening 13 begins to guide the push block 11, so that the push block 11 is fully inserted into the slideway formed by the first guide slot 8 and the second guide slot 9, ensuring that the push block 11 can move along the path of the slideway to avoid deviation or jamming, thereby ensuring that the push block 11 can move smoothly and accurately, which helps to improve the accuracy and reliability of positioning the end cover positioning member 308 and the assembly hole on the valve pump body 5.

[0043] Please refer to Figures 5 to 9 As an embodiment of the utility model, a first guide hole 14 is opened in the middle of the guide block 307, wherein a second guide hole 15 corresponding to the first guide hole 14 is opened on the fixing plate 302, and the aperture of the second guide hole 15 is the same as the aperture of the first guide hole 14; a positioning hole 16 is opened in the middle of the end cover positioning member 308, wherein the positioning hole 16 is connected to the first guide hole 14; a third guide hole 17 is opened on the push block 11, wherein the third guide hole 17 corresponds to the first guide hole 14 and the second guide hole 15 respectively.

[0044] In the above-described scheme, the end cover positioning member 308 is located on one side of the guide block 307 and is provided with a positioning hole 16, wherein the positioning hole 16 is connected to the first guide hole 14 to form a continuous guide channel, providing a precise path for the subsequent movement of the end cover pressing assembly 4; a third guide hole 17 is provided on the push block 11, wherein the third guide hole 17 corresponds to the first guide hole 14 and the second guide hole 15 respectively. When the push block 11 moves under the push of the second dual-axis cylinder 10, the third guide hole 17 will be aligned with the first guide hole 14 and the second guide hole 15 to form a continuous channel, thereby making the first guide hole 14, the second guide hole 15, the third guide hole 17 and the positioning hole 16 located on the same axial line, providing precise guide positioning for the assembly of the end cover.

[0045] Please refer to Figure 8 , Fig.10 As an embodiment of the utility model, a single-line linear bearing 18 is provided at the lower end of the slide plate 306, wherein the outer wall of the single-line linear bearing 18 is fixedly connected to the slide plate 306 through a connecting plate 19; a guide shaft 20 is slidably connected inside the single-line linear bearing 18, wherein the outer wall of the guide shaft 20 is sleeved with an ultra-light load spring 21, and the guide shaft 20 not only plays a guiding role, but also provides a certain elasticity and buffer for the slide plate 306 through the ultra-light load spring 21 sleeved on its outer wall; a first guide rod seat 22 and a second guide rod seat 23 are respectively provided on both sides of the mounting plate 305, wherein the two ends of the guide shaft 20 are respectively It is fixedly connected to the first guide rod seat 22 and the second guide rod seat 23, supports the guide shaft 20, and further improves the stability of the guide shaft 20; one end of the ultra-light load spring 21 is connected to the single-liner linear bearing 18, wherein the other end of the ultra-light load spring 21 is fixedly connected to the first guide rod seat 22; two linear sliders 24 are symmetrically installed on the lower end of the slide plate 306, wherein a linear slide rail 25 matched with the linear slider 24 is provided on the mounting plate 305, and the sliding cooperation between the linear slider 24 and the linear slide rail 25 facilitates the slide plate 306 to perform smooth and accurate linear movement on the mounting plate 305.

[0046] In the above-described scheme, the slide plate 306 is stably mounted on the mounting plate 305 by means of a single-line linear bearing 18 and a linear slider 24, wherein the ultra-light load spring 21 arranged on the outer wall of the guide shaft 20 is in a natural state, providing a certain elastic preload force for the slide plate 306. When the second dual-axis cylinder 10 drives the piston rod to extend, the push block 11 slides along the slideway composed of the first guide groove 8 and the second guide groove 9 under the push of the piston rod. As the push block 11 moves, the push block 11 is used to squeeze the guide block 307, so that the guide block 307 drives the slide plate 306 to start sliding toward the side of the valve pump body 5. During the movement of the slide plate 306, the single-line linear bearing 18 arranged under the slide plate 306 will slide smoothly along the guide shaft 20, and at the same time, the linear slider 24 moves on the linear slide rail 25, ensuring the smoothness and accuracy of the movement of the slide plate 306. , which helps to improve the accuracy and reliability of the positioning of the end cover positioning piece 308 and the assembly hole of the valve pump body 5 driven by the guide block 307; during the sliding process, if the slide plate 306 encounters an obstacle or impact force, the ultra-light load spring 21 will play a buffering role, absorb part of the impact force, and protect the slide plate 306 and related components from damage, thereby greatly improving the stability and durability of the end cover positioning assembly 3; when the end cover assembly is completed, the end cover press-fitting assembly 4 is reset, and at the same time, the second dual-axis cylinder 10 drives the piston rod to retract, and drives the push block 11 to retract from the slideway composed of the first guide slot 8 and the second guide slot 9. As the push block 11 moves, the guide block 307 loses the extrusion of the push block 11 on it, and the ultra-light load spring 21 will drive the slide plate 306 to move horizontally along the linear slide rail 25 under the action of its elastic force, so that the guide block 307 drives the end cover positioning piece 308 to return to its initial position.

[0047] Please refer to Fig.11 , Fig.12 As an embodiment of the utility model, the end cover press-fitting assembly 4 includes a mounting seat 401, wherein an electric cylinder mounting plate 402 is provided above the mounting seat 401; a servo electric cylinder 403 is provided on one side of the electric cylinder mounting plate 402, and the servo electric cylinder 403 is fixedly connected to the mounting seat 401 through the electric cylinder mounting plate 402, wherein the piston rod of the servo electric cylinder 403 penetrates the electric cylinder mounting plate 402 and extends forward to provide power for the press-fitting operation; a sliding seat 404 is provided on the side of the electric cylinder mounting plate 402 away from the servo electric cylinder 403, and the sliding seat 404 is connected to the mounting seat The mounting seat 401 is movably connected; a connecting assembly 26 is provided on one side of the sliding seat 404 close to the electric cylinder mounting plate 402, wherein an end cover pressing head 27 is fixedly installed on the other side of the sliding seat 404, and the end cover pressing head 27 is used to press the end cover; two guide rail sliders 28 are symmetrically installed on the bottom of the sliding seat 404, wherein a linear guide rail 29 adapted to the guide rail slider 28 is provided on the upper end of the mounting seat 401, and the sliding cooperation between the guide rail slider 28 and the linear guide rail 29 facilitates the sliding seat 404 to slide smoothly and accurately along the linear guide rail 29.

[0048] In the above scheme, when the end cover is press-fitted, the servo electric cylinder 403 drives the piston rod to extend and push the sliding seat 404 to slide along the linear guide rail 29, and the servo electric cylinder 403 connects the component 26 to transmit the transmission, so that the end cover pressing head 27 is aligned with the end cover to be press-fitted. When the end cover pressing head 27 is aligned with the end cover, the servo electric cylinder 403 continues to push the sliding seat 404 and the end cover pressing head 27 to move forward, so that the end cover pressing head 27 passes through the continuous positioning channel composed of the second guide hole 15, the third guide hole 17, the first guide hole 14 and the positioning hole 16 in sequence, and the end cover is press-fitted. During the press-fitting process, the end cover pressing head 27 will apply appropriate pressure to ensure that the end cover can be tightly installed in the assembly hole of the valve pump body 5. When the press-fitting is completed, the servo electric cylinder 403 stops pushing and gradually retracts the piston rod, thereby driving the sliding seat 404 and the end cover pressing head 27 to reset to the initial position and wait for the next press-fitting operation, which greatly improves the work efficiency of the end cover press-fitting.

[0049] Please refer to Fig.11 , Fig.12 As an embodiment of the utility model, the connecting assembly 26 includes a floating joint 2601, a pressure sensor 2602 and a protective buckle plate 2603, wherein the protective buckle plate 2603 is covered on the outside of the floating joint 2601 and the pressure sensor 2602 and is fixedly connected to the sliding seat 404; the pressure sensor 2602 is arranged between the floating joint 2601 and the sliding seat 404, wherein the end of the floating joint 2601 away from the pressure sensor 2602 passes through the protective buckle plate 2603 and is fixedly connected to the top of the piston rod of the servo electric cylinder 403.

[0050] In the above scheme, the floating joint 2601 plays a role of buffering and vibration reduction in the connection component 26, which can reduce installation errors, maintain stable operation of the equipment, and extend service life. At the same time, the floating joint 2601 can also adapt to the connection error between the piston rod and the sliding seat 404, and improve the connection accuracy; the pressure sensor 2602 can detect and feedback the pressure change in the connection component 26 in real time, provide important data support for the control system, ensure that the pressure control in the press-fitting process is within the set range, and improve production safety and product quality; the protective buckle plate 2603 not only protects the floating joint 2 601 and the pressure sensor 2602 can also prevent external contaminants from entering the interior of the connecting component 26, thereby ensuring the normal operation of the connecting component 26 and extending its service life; during the pressing process, the floating joint 2601 ensures a stable connection between the piston rod of the servo electric cylinder 403 and the sliding seat 404, and monitors the pressure changes in real time through the pressure sensor 2602, while the protective buckle plate 2603 protects the internal components from external interference and damage. The floating joint 2601, the pressure sensor 2602 and the protective buckle plate 2603 cooperate with each other to ensure the stability and accuracy of the pressing process.

[0051] See also Fig.11 As an embodiment of the utility model, a linear displacement sensor 30 is provided on one side of the electric cylinder mounting plate 402, wherein the linear displacement sensor 30 is fixedly connected to the electric cylinder mounting plate 402 through a sensor connecting plate 31, thereby ensuring the stability and accuracy of the installation of the linear displacement sensor 30; a displacement connector 32 is provided at the front end of the telescopic rod of the linear displacement sensor 30, wherein the upper end of the displacement connector 32 is fixedly connected to the sliding seat 404, and the linear displacement sensor 30 cooperates with the sliding seat 404, thereby facilitating the accurate measurement of the displacement of the sliding seat 404.

[0052] In the above-described scheme, when the sliding seat 404 is displaced under the push of the servo electric cylinder 403, this displacement will be transmitted to the telescopic rod of the linear displacement sensor 30 through the displacement connector 32, so that the linear displacement sensor 30 can accurately measure the displacement of the sliding seat 404 and convert it into an electrical signal output; the displacement data measured by the linear displacement sensor 30 is crucial to the operation of the control system. These data can be used to monitor the pressing process to ensure that the end cover is accurately pressed to the specified position. At the same time, these data can also be used to adjust the operating parameters of the servo electric cylinder to achieve more precise control, providing important feedback data for the control system and ensuring the accuracy and controllability of the pressing process.

[0053] See also Fig.12 As an embodiment of the utility model, a drag chain 33 is provided on one side of the mounting seat 401 close to the linear displacement sensor 30, wherein the upper end of the drag chain 33 is fixedly connected to the side of the sliding seat 404, and when the sliding seat 404 moves, the drag chain 33 will also move accordingly; a drag chain slide 34 is fixedly connected to the side of the mounting seat 401, wherein the lower end of the drag chain 33 is fixedly connected to the drag chain slide 34, thereby ensuring the stability and support of the drag chain 33 in the vertical direction.

[0054] In the above-described scheme, the main function of the drag chain 33 is to protect the cables, pipelines and other facilities inside it, and prevent them from being pulled, bent or damaged during the movement of the sliding seat 404. By moving with the sliding seat 404, the drag chain 33 ensures the safety and integrity of these facilities; the drag chain slide 34 provides the drag chain 33 with a lower fixing and support point, ensuring the stability and smooth movement of the drag chain 33 in the vertical direction. At the same time, it also plays a role in guiding the movement of the drag chain 33, preventing the drag chain 33 from being offset or stuck during the movement, protecting the internal cables, pipelines and other facilities from damage, thereby ensuring the smooth progress of the entire pressing process.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0056] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the utility model, which are used to illustrate the technical solution of the utility model, rather than to limit it. The protection scope of the utility model is not limited thereto. Although the utility model is described in detail with reference to the above-mentioned embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solution recorded in the above-mentioned embodiments within the technical scope disclosed by the utility model, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiment of the utility model, and should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A self-positioning press-fitting mechanism for an air valve pump end cover, comprising a base plate (1); characterized in that: The base plate (1) is provided with a valve pump body positioning assembly (2), wherein the valve pump body positioning assembly (2) is movably connected to the base plate (1); end cover positioning assemblies (3) are respectively provided on both sides of the valve pump body positioning assembly (2), wherein two groups of the end cover positioning assemblies (3) have the same structure and are arranged opposite to each other; an end cover pressing assembly (4) is provided on the side of the end cover positioning assembly (3) away from the valve pump body positioning assembly (2), wherein two groups of the end cover pressing assembly (4) are arranged opposite to each other; a lifting cylinder (35) is installed at the bottom of the base plate (1), wherein a limit pin (36) is provided at the top end of the piston rod of the lifting cylinder (35); hydraulic buffers (38) are respectively provided on both sides of the end cover positioning assembly (3), wherein the front end of the hydraulic buffer (38) passes through the end cover positioning assembly (3) and is connected to the valve pump body positioning assembly (2).

2. The self-positioning press-fitting mechanism for the end cover of an air valve pump according to claim 1, characterized in that: The valve pump body positioning assembly (2) comprises a movable plate (201); a fixed frame (202) is provided above the movable plate (201), wherein a positioning plate (203) is provided at the top of the fixed frame (202); a pneumatic cylinder (204) is installed in the fixed frame (202), wherein a lifting plate (205) is provided at the top of the piston rod of the pneumatic cylinder (204); positioning pins (206) are respectively installed at both ends of the lifting plate (205), wherein a limiting hole (207) matched with the positioning pin (206) is opened on the positioning plate (203); a support frame (208) is provided on one side of the fixed frame (202), wherein a support arm (209) is provided at the upper end of the support frame (208); a first double-axis cylinder (210) is provided below the support arm (209), wherein a contoured pressure block (211) is fixedly connected to the top of the piston rod of the first double-axis cylinder (210).

3. The self-positioning press-fitting mechanism for the end cover of an air valve pump according to claim 1, characterized in that: The end cover positioning assembly (3) comprises a base (301), wherein a fixing plate (302) is provided above the base (301); a mounting groove (303) is provided at the upper end of the base (301), wherein a side of the lower end of the fixing plate (302) close to the mounting groove (303) is provided with an avoidance groove (304) adapted to the mounting groove (303); a mounting plate (305) is provided in the mounting groove (303), wherein a slide plate (306) is movably connected above the mounting plate (305); a fixing plate (306) is fixedly mounted on the slide plate (306); A guide block (307) is provided, wherein an end cover positioning member (308) is provided on a side of the guide block (307) close to the valve pump body positioning assembly (2); a first guide slot (8) is provided on a side of the guide block (307) close to the fixed plate (302), wherein a second guide slot (9) is provided on the inner side of the fixed plate (302) and is arranged opposite to the first guide slot (8); a second double-axis cylinder (10) is installed on the inner side of the fixed plate (302), wherein a push block (11) is fixedly connected to the top end of the piston rod of the second double-axis cylinder (10).

4. The self-positioning press-fitting mechanism for the end cover of an air valve pump according to claim 3, characterized in that: The guide block (307) is provided with a first guide hole (14) in the middle, wherein the fixing plate (302) is provided with a second guide hole (15) corresponding to the first guide hole (14); the end cover positioning member (308) is provided with a positioning hole (16) in the middle, wherein the positioning hole (16) is communicated with the first guide hole (14); the push block (11) is provided with a third guide hole (17), wherein the third guide hole (17) corresponds to the first guide hole (14) and the second guide hole (15) respectively.

5. The self-positioning press-fitting mechanism for the end cover of an air valve pump according to claim 3, characterized in that: The lower end of the slide plate (306) is provided with a single-line linear bearing (18), wherein the outer wall of the single-line linear bearing (18) is fixedly connected to the slide plate (306) via a connecting plate (19); a guide shaft (20) is slidably connected inside the single-line linear bearing (18), wherein the outer wall of the guide shaft (20) is sleeved with an ultra-light load spring (21); a first guide rod seat (22) and a second guide rod seat (23) are respectively provided on both sides of the mounting plate (305), wherein the two ends of the guide shaft (20) are respectively fixedly connected to the first guide rod seat (22) and the second guide rod seat (23); one end of the ultra-light load spring (21) is connected to the single-line linear bearing (18), wherein the other end of the ultra-light load spring (21) is fixedly connected to the first guide rod seat (22); two linear sliders (24) are symmetrically installed at the lower end of the slide plate (306), wherein a linear slide rail (25) adapted to the linear slider (24) is provided on the mounting plate (305).

6. The self-positioning press-fitting mechanism for the end cover of an air valve pump according to claim 1, characterized in that: The end cover pressing assembly (4) comprises a mounting seat (401), wherein an electric cylinder mounting plate (402) is provided above the mounting seat (401); a servo electric cylinder (403) is provided on one side of the electric cylinder mounting plate (402), wherein a piston rod of the servo electric cylinder (403) penetrates through the electric cylinder mounting plate (402) and extends forward; a sliding seat (404) is provided on the side of the electric cylinder mounting plate (402) away from the servo electric cylinder (403), wherein the sliding seat (404) is movably connected to the mounting seat (401); a connecting assembly (26) is provided on the side of the sliding seat (404) close to the electric cylinder mounting plate (402), wherein an end cover pressing head (27) is fixedly installed on the other side of the sliding seat (404); two guide rail sliders (28) are symmetrically installed at the bottom of the sliding seat (404), wherein a linear guide rail (29) adapted to the guide rail slider (28) is provided at the upper end of the mounting seat (401).

7. The self-positioning press-fitting mechanism for the end cover of an air valve pump according to claim 6, characterized in that: The connection assembly (26) comprises a floating joint (2601), a pressure sensor (2602) and a protective buckle plate (2603), wherein the protective buckle plate (2603) is covered on the outside of the floating joint (2601) and the pressure sensor (2602) and is fixedly connected to the sliding seat (404); the pressure sensor (2602) is arranged between the floating joint (2601) and the sliding seat (404), wherein one end of the floating joint (2601) away from the pressure sensor (2602) passes through the protective buckle plate (2603) and is fixedly connected to the top end of the piston rod of the servo electric cylinder (403).

8. The self-positioning press-fitting mechanism for the end cover of an air valve pump according to claim 6, characterized in that: A linear displacement sensor (30) is provided on one side of the electric cylinder mounting plate (402), wherein the linear displacement sensor (30) is fixedly connected to the electric cylinder mounting plate (402) via a sensor connecting plate (31); a displacement connecting piece (32) is provided at the front end of the telescopic rod of the linear displacement sensor (30), wherein the upper end of the displacement connecting piece (32) is fixedly connected to the sliding seat (404).

9. The self-positioning press-fitting mechanism for the end cover of an air valve pump according to claim 6, characterized in that: A drag chain (33) is provided on one side of the mounting seat (401) close to the linear displacement sensor (30), wherein the upper end of the drag chain (33) is fixedly connected to the side of the sliding seat (404); a drag chain slide (34) is fixedly connected to the side of the mounting seat (401), wherein the lower end of the drag chain (33) is fixedly connected to the drag chain slide (34).

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