Automatic riveting device for electromagnetic valve

Abstract

The application provides an electromagnetic valve automatic riveting and pressing device and relates to the technical field of riveting and pressing. The device comprises a workbench, four groups of slide rods are arranged on the upper end surface of the workbench, an installation plate is arranged at the top of the slide rods, a first hydraulic cylinder is arranged on the upper end surface of the installation plate, a slide plate is connected to the telescopic end of the first hydraulic cylinder, and the slide plate is sleeved on the surface of the slide rod and is in sliding connection with the slide rod. The device further comprises a pressure relief mechanism, the pressure relief mechanism comprises two groups of fixing sleeves, the fixing sleeves are arranged on the upper end surface of the slide plate, sliding sleeves are in sliding connection with the fixing sleeves, riveting sleeves are arranged on the lower end surfaces of the sliding sleeves, compression springs are arranged in the fixing sleeves, one end of each compression spring is fixedly connected to the top of the fixing sleeve, and the other end of each compression spring is connected to the upper end surface of the sliding sleeve. Through the cooperative work of the pressure relief control system and the quick clamp replacement device, the precision control of the electromagnetic valve riveting and pressing process and the multi-specification adaptability operation are realized.

Description

Technical Field

[0001] This invention relates to the field of riveting technology, and more specifically, to an automatic riveting device with a solenoid valve. Background Technology

[0002] In current solenoid valve manufacturing processes, traditional riveting devices generally employ a single hydraulic cylinder drive system to achieve riveting operations. This relatively simple control method reveals significant technical shortcomings when facing the precision assembly requirements of solenoid valves. Although hydraulic cylinders can provide substantial driving force, their ability to precisely control output force is limited. This is mainly manifested in the fact that factors such as pressure fluctuations, oil temperature changes, and seal wear in the hydraulic system directly affect the stability and accuracy of the riveting pressure. In actual riveting processes, different components of the solenoid valve have varying requirements for riveting pressure. Excessive riveting pressure can easily cause deformation or damage to the precision parts inside the solenoid valve, while insufficient riveting pressure can lead to quality problems such as weak riveting and reduced sealing performance. Furthermore, the response speed of the hydraulic system is relatively slow, which cannot meet the dual requirements of modern production lines for riveting cycle time and precision. Over-riveting or under-riveting frequently occurs, seriously affecting the overall quality and production efficiency of solenoid valve products.

[0003] Existing clamping systems for solenoid valve riveting devices mostly employ fixed-size clamping structures. This unchanging clamping method is poorly adaptable to the increasingly diverse specifications of solenoid valve products on the market, restricting the equipment's versatility and production flexibility. Different models of solenoid valves vary significantly in terms of external dimensions, valve body diameter, and connection interface specifications. Fixed clamping devices can only accommodate solenoid valves of specific specifications. When the production line needs to switch to different models of solenoid valves, it often requires downtime to replace the entire clamping system or to carry out complex mechanical modifications. This not only consumes a lot of changeover time and labor costs but also easily introduces positioning errors and assembly defects during the modification process. This lack of specification adaptability forces companies to configure dedicated riveting equipment for different specifications of solenoid valves, significantly increasing equipment investment costs and production space occupation. It also increases the complexity of equipment management and maintenance. In a multi-variety, small-batch production model, frequent equipment switching and adjustments have become a major bottleneck restricting the improvement of production efficiency, affecting the company's market responsiveness and economic benefits. Summary of the Invention

[0004] (a) Technical problems to be solved In view of the problems existing in the prior art, the present invention provides an automatic riveting device for solenoid valves to solve the technical problems mentioned in the background art.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: an automatic riveting device for an electromagnetic valve, comprising a worktable, four sets of sliding rods on the upper surface of the worktable, a mounting plate on the top of each sliding rod, a first hydraulic cylinder on the upper surface of the mounting plate, a sliding plate connected to the telescopic end of the first hydraulic cylinder, the sliding plate being fitted onto the surface of the sliding rod and slidably connected to the sliding rod, two sets of second hydraulic cylinders on the upper surface of the worktable, the telescopic ends of the second hydraulic cylinders being fitted with connecting plates; further comprising a pressure relief mechanism, comprising two sets, including a fixed sleeve, the fixed sleeve being fitted onto the upper surface of the sliding plate, a sliding sleeve being slidably connected inside the fixed sleeve, a riveting sleeve being provided on the lower surface of the sliding sleeve, a compression spring being provided inside the fixed sleeve, one end of the compression spring being fixedly connected to the top of the fixed sleeve, and the other end being connected to the upper surface of the sliding sleeve; further comprising a quick-release mechanism, the quick-release mechanism including a clamp, the clamp being detachably connected to the connecting plate, an insert rod being provided on the side wall of the clamp, and a slot being formed on the surface of the insert rod.

[0006] Preferably, the upper surface of the workbench is provided with a slide rail, a slider is slidably connected on the slide rail, a solenoid valve is provided on the upper surface of the slider, and a mounting sleeve is provided on the upper surface of the solenoid valve.

[0007] Preferably, a back pressure sleeve is slidably connected inside the sliding sleeve, and a push spring is provided on the lower end face of the back pressure sleeve, with the other end of the push spring connected to the bottom of the sliding sleeve.

[0008] Preferably, an adjusting rod is slidably connected coaxially inside the back pressure sleeve, with a hexagonal block at one end and a first hexagonal groove at the other end.

[0009] Preferably, the upper end face of the sliding sleeve is provided with a connecting tube, the inner wall of the connecting tube is provided with a connecting block, the bottom of the connecting block is provided with a guide sleeve, and the inner wall of the connecting tube is provided with a guide frame.

[0010] Preferably, a push rod is slidably connected coaxially inside the guide frame, the push rod is slidably connected to the guide sleeve, a first sealing disc is slidably connected to the surface of the push rod, a support spring is provided on the lower end face of the first sealing disc, and the other end of the support spring is fixedly connected to the inner wall of the connecting block.

[0011] Preferably, the lower end face of the push rod is provided with a second sealing disc, the lower end face of the second sealing disc is provided with a pressure adjusting spring, the other end of the pressure adjusting spring is connected to a threaded sleeve, the threaded sleeve is threadedly connected to the inner wall of the connecting pipe, and the bottom of the threaded sleeve is provided with a second hexagonal groove, which is adapted to a hexagonal block.

[0012] Preferably, the push rod has a return groove inside.

[0013] Preferably, the side wall of the connecting plate is provided with a fixing cylinder, the outer surface of the fixing cylinder is provided with a sliding groove, an inclined plate is slidably connected in the sliding groove, a pushing ring is connected to the end of the inclined plate, a first spring is provided on the side wall of the pushing ring, and the other end of the first spring is connected to the side wall of the connecting plate.

[0014] Preferably, the slide groove is provided with a locking block, the side wall of the locking block is provided with a second spring and a locking rod, the locking rod is adapted to the locking groove, the other end of the second spring is fixedly connected to the outer surface of the fixed cylinder, and the locking block is adapted to the inclined plate.

[0015] (III) Beneficial Effects Compared with the prior art, the present invention provides an automatic riveting device for electromagnetic valves, which has the following advantages: This automatic riveting device for electromagnetic valves achieves precision control and multi-specification adaptability in the riveting process of electromagnetic valves through the coordinated operation of a pressure relief control system and a quick clamp changing device.

[0016] This riveting device solves the key problem of inaccurate force control in traditional hydraulic riveting devices through a dual pressure control system. The device adopts a dual-cavity design with a fixed sleeve and a sliding sleeve, and works in conjunction with a back pressure sleeve and an adjusting rod to achieve graded control of the riveting pressure. The built-in pressure relief mechanism can realize the automatic adjustment and release of the riveting pressure. When the riveting pressure reaches the preset value, the second sealing disc automatically moves down under the action of hydraulic pressure, overcoming the elasticity of the pressure adjusting spring, and establishing a connection between the fixed sleeve and the sliding sleeve, realizing the orderly flow of hydraulic oil and the stable release of pressure. This pressure relief control mechanism ensures that the optimal pressure parameters are achieved in each riveting operation, avoiding deformation and damage to the solenoid valve caused by excessive riveting pressure, and also preventing the problem of weak connection caused by insufficient riveting pressure.

[0017] By adjusting the preload of the pressure regulating spring, operators can set the pressure relief threshold according to the riveting requirements of different specifications of solenoid valves. The matching design of the hexagonal block and the second hexagonal groove makes the adjustment operation simple and convenient. The up and down movement of the threaded sleeve directly changes the compression of the pressure regulating spring, thereby controlling the pressure relief start pressure. This adjustable pressure control system allows the same set of equipment to adapt to the riveting requirements of products ranging from small precision solenoid valves to large industrial solenoid valves, improving the versatility of the equipment and production flexibility. The slow return design of the hydraulic oil through the return groove ensures the stability of pressure release. At the same time, the alternating use design of the dual pressure relief mechanisms improves production efficiency. When one pressure relief mechanism is in the return reset state, the other can be put into use immediately, realizing continuous production operation.

[0018] This device overcomes the technical limitations of traditional fixed clamping devices, which cannot adapt to solenoid valves of different specifications, through a quick-release clamping system. The detachable connection design between the clamp and the connecting plate, combined with the precision locking mechanism of the insert rod, slot, and lever, enables quick clamp replacement and reliable fixation. Operators can replace clamps of different specifications in seconds with a simple operation of the push ring, without the need for special tools or complex mechanical adjustments. The wedge-shaped transmission design of the inclined plate and the locking block converts the linear pushing force into a radial separation force. Through the elastic energy storage and release of the first and second springs, the reliability and repeatability of the locking lever and slot separation and engagement actions are ensured.

[0019] This quick-release mechanism allows the same riveting device to rapidly adapt to solenoid valves of different outer diameters, lengths, and interface types, from miniature to large industrial solenoid valves, achieving stable clamping and riveting operations. The modular design of the fixtures allows users to customize specialized fixtures according to actual production needs without replacing the entire set of equipment, reducing equipment investment and changeover time costs. The precise guiding fit between the slide rail and the slider ensures the positional accuracy and stability of the solenoid valve during the riveting process, avoiding riveting misalignment or positioning errors caused by improper clamping. This device achieves continuous and efficient riveting operations through the alternating operation of two sets of pressure relief mechanisms. When one set of pressure relief mechanisms completes riveting and enters the hydraulic oil return reset state, the other set of pressure relief mechanisms can immediately take over the riveting task of the next solenoid valve. This avoids the production downtime that traditional single-set systems need to wait for the reset to complete. This parallel working mechanism improves the actual operating efficiency of the equipment and is suitable for the continuous production needs of large batches of solenoid valves.

[0020] The guide system on the workbench, in conjunction with the control of the first hydraulic cylinder, achieves accurate positioning and smooth operation of the riveting stroke. The evenly distributed design of the four sets of guide rods ensures the stability and parallelism of the slide plate during the lifting process, avoiding tilting and offset problems that may occur with single-point drive. The symmetrical arrangement of the two sets of second hydraulic cylinders enables synchronous movement and uniform clamping of the fixture, ensuring the positional stability of the solenoid valve during clamping and conveying.

[0021] In summary, this automatic riveting device for solenoid valves successfully solves the problems of inaccurate pressure control and poor specification adaptability of traditional riveting equipment, providing a technical solution for the upgrading of the solenoid valve manufacturing industry and the improvement of product quality. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an automatic riveting device for an electromagnetic valve according to the present invention; Figure 2 In this invention Figure 1 A schematic diagram of the cross-sectional structure; Figure 3 This is a schematic diagram of the quick-release mechanism in this invention; Figure 4 In this invention Figure 3 A schematic diagram of the cross-sectional structure; Figure 5 This is a schematic diagram of the structure of the clamp and the insertion rod in this invention; Figure 6 This is a cross-sectional view of the fixed cylinder and the pushing ring in this invention; Figure 7 This is a cross-sectional view of the pressure relief mechanism in this invention; Figure 8 This is a cross-sectional view of the connecting pipe and push rod in this invention.

[0023] In the diagram: 11. Workbench; 12. Slide rod; 13. Mounting plate; 14. First hydraulic cylinder; 15. Slide plate; 16. Second hydraulic cylinder; 17. Connecting plate; 18. Slide rail; 19. Slider; 110. Solenoid valve; 111. Mounting sleeve; 21. Fixing sleeve; 22. Sliding sleeve; 23. Riveting sleeve; 24. Compression spring; 25. Return sleeve; 26. Push spring; 27. Adjusting rod; 28. Hexagonal block; 29. ​​First hexagonal slot; 31. Fixture; 32. Insert rod; 33. 34. Slot; 35. Fixed cylinder; 36. Sliding groove; 37. Inclined panel; 38. Push ring; 39. First spring; 20. Locking block; 210. Connecting pipe; 211. Connecting block; 212. Guide sleeve; 213. Guide frame; 214. Push rod; 215. First sealing disc; 216. Support spring; 217. Second sealing disc; 218. Pressure adjusting spring; 219. Threaded sleeve; 220. Second hexagonal groove; 221. Return groove; 310. Second spring; 311. Locking rod. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0026] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0027] Please see Figures 1 to 8 An automatic riveting device for an electromagnetic valve includes a worktable 11. Four sets of slide rods 12 are provided on the upper surface of the worktable 11. A mounting plate 13 is provided at the top of each slide rod 12. A first hydraulic cylinder 14 is provided on the upper surface of the mounting plate 13. A sliding plate 15 is connected to the telescopic end of the first hydraulic cylinder 14. The sliding plate 15 is fitted onto the surface of the slide rod 12 and slidably connected to it. Two sets of second hydraulic cylinders 16 are provided on the upper surface of the worktable 11. A connecting plate 17 is provided at the telescopic end of each second hydraulic cylinder 16. A slide rail 18 is provided on the upper surface of the worktable 11. A slider 19 is slidably connected to the slide rail 18. The device includes a solenoid valve 110 on one end face, with a mounting sleeve 111 on the upper end face of the solenoid valve 110; it also includes a pressure relief mechanism, which has two sets, including a fixed sleeve 21, which is located on the upper end face of the slide plate 15. A sliding sleeve 22 is slidably connected inside the fixed sleeve 21, and a rivet sleeve 23 is provided on the lower end face of the sliding sleeve 22. A compression spring 24 is provided inside the fixed sleeve 21, with one end of the compression spring 24 fixedly connected to the top of the fixed sleeve 21 and the other end connected to the upper end face of the sliding sleeve 22. A return pressure sleeve 25 is slidably connected inside the sliding sleeve 22, and a push spring 26 is provided on the lower end face of the return pressure sleeve 25. The other end of 26 is connected to the bottom of the sliding sleeve 22. An adjusting rod 27 is slidably connected coaxially inside the back pressure sleeve 25. One end of the adjusting rod 27 is provided with a hexagonal block 28, and the other end is provided with a first hexagonal groove 29. A connecting pipe 210 is provided on the upper end face of the sliding sleeve 22. A connecting block 211 is provided on the inner wall of the connecting pipe 210. A guide sleeve 212 is provided at the bottom of the connecting block 211. A guide frame 213 is provided on the inner wall of the connecting pipe 210. A push rod 214 is slidably connected coaxially inside the guide frame 213. The push rod 214 is slidably connected to the guide sleeve 212. The surface of the push rod 214 is slidably connected. There is a first sealing disc 215, and a support spring 216 is provided on the lower end face of the first sealing disc 215. The other end of the support spring 216 is fixedly connected to the inner wall of the connecting block 211. A second sealing disc 217 is provided on the lower end face of the push rod 214. A pressure adjusting spring 218 is provided on the lower end face of the second sealing disc 217. A threaded sleeve 219 is connected to the other end of the pressure adjusting spring 218. The threaded sleeve 219 is threadedly connected to the inner wall of the connecting pipe 210. A second hexagonal groove 220 is opened at the bottom of the threaded sleeve 219. The second hexagonal groove 220 is adapted to the hexagonal block 28. A return groove 221 is opened in the push rod 214.

[0028] It also includes a quick-release mechanism, which includes a clamp 31. The clamp 31 is detachably connected to the connecting plate 17. The side wall of the clamp 31 is provided with an insertion rod 32. The surface of the insertion rod 32 is provided with a slot 33. The side wall of the connecting plate 17 is provided with a fixing cylinder 34. The outer surface of the fixing cylinder 34 is provided with a sliding groove 35. An inclined plate 36 is slidably connected in the sliding groove 35. The end of the inclined plate 36 is connected with a push ring 37. The side wall of the push ring 37 is provided with a first spring 38. The other end of the first spring 38 is connected to the side wall of the connecting plate 17. A locking block 39 is provided in the sliding groove 35. The side wall of the locking block 39 is provided with a second spring 310 and a locking rod 311. The locking rod 311 is adapted to the slot 33. The other end of the second spring 310 is fixedly connected to the outer surface of the fixing cylinder 34. The locking block 39 is adapted to the inclined plate 36.

[0029] The operator first places the solenoid valve 110 and mounting sleeve 111 to be riveted on the slider 19. Two sets of second hydraulic cylinders 16 are activated, and their telescopic ends push the clamps 31 towards the solenoid valve 110, clamping it tightly. Then, the solenoid valve 110 is pushed further down towards one of the riveting sleeves 23. Once the target position is reached, the first hydraulic cylinder 14 is activated, extending its telescopic end to push the slide plate 15 down along the slide rod 12 until the riveting sleeve 23 presses against the mounting sleeve 111. A hydraulic cylinder 14 applies pressure to the mounting sleeve 111 via the riveting sleeve 23, making the connection between the mounting sleeve 111 and the solenoid valve 110 more secure. Once the required riveting pressure for the mounting sleeve 111 is reached, pressure is released. The fixed sleeve 21 is filled with hydraulic oil, and the area above the back pressure sleeve 25 in the sliding sleeve 22 is also filled with hydraulic oil. During pressure release, the pressure inside the fixed sleeve 21 increases, and the second sealing disc 217 moves downwards against the force of the adjusting spring 218, thus connecting the fixed sleeve 21 and the sliding sleeve 22. At this time, the hydraulic oil in the fixed sleeve 21 flows downwards. The rivet sleeve 23 and the sliding sleeve 22 slide upwards, and the hydraulic oil flows downwards through the guide frame 213, then flows into the connecting block 211 through the gap between the first sealing disc 215 and the connecting block 211, and then into the sliding sleeve 22. The flow of hydraulic oil generates an impact force on the upper surface of the first sealing disc 215, forcing the first sealing disc 215 to overcome the elastic force of the support spring 216 and move downwards until the first sealing disc 215 and the upper surface of the connecting block 211 are tightly connected. The flow of hydraulic oil stops, achieving a pressure relief effect. When the first sealing disc 215 and the connecting block 211 are tightly connected, the hydraulic oil flow stops, achieving a pressure relief effect. 1. After sealing, the whole is in a fixed state, and only a small part of the hydraulic oil flows out. Therefore, after pressure relief, the seal will be restored immediately, thus avoiding the impact caused by rapid movement. After the riveting is completed, the first hydraulic cylinder 14 drives the riveting whole to move upward, and the pressure disappears. At this time, the push spring 26 pushes the return sleeve 25 to move upward, squeezing the hydraulic oil flowing into the sliding sleeve 22 upward. It slowly flows back into the fixed sleeve 21 through the return groove 221 opened at the center of the push rod 214. This process takes a long time, so the next round of riveting needs to use the other side of the riveting mechanism. The operator can adjust the pressure adjusting spring 218 using a wrench. The Allen wrench is inserted into the first hexagonal slot 29 and pushed upwards, causing the adjusting rod 27 and hexagonal block 28 to move upwards simultaneously. When the hexagonal block 28 is embedded in the second hexagonal slot 220, the Allen wrench is rotated to move the threaded sleeve 219 up or down, thereby adjusting the pressure of the pressure adjusting spring 218. When it is necessary to disassemble or replace the clamp 31, the operator needs to manually push the pushing ring 37 to move. The pushing ring 37 drives the inclined plate 36 to move along the slide groove 35. The inclined surface of the inclined plate 36 presses against the locking block 39, squeezing the locking block 39 outwards. The first spring 38 is compressed, and the second spring 310 is... When stretched, the locking block 39 moves the locking rod 311 outward together, disengaging the locking rod 311 from the slot 33 on the surface of the insertion rod 32, thereby releasing the connection between the locking rod 311 and the insertion rod 32. At this point, the old clamp 31 can be pulled out and replaced with a new clamp 31. After inserting the new clamp 31, the push ring 37 is released, and the first spring 38 rebounds, causing the push ring 37 to move backward, which in turn causes the inclined plate 36 to move backward synchronously, releasing the pressure on the locking block 39. The second spring 310 rebounds, causing the locking block 39 and the locking rod 311 to move inward. The locking rod 311 continues to be inserted into the slot 33 opened in the insertion rod 32 connected to the new clamp 31, thus fixing the new clamp 31.

[0030] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic riveting device for a solenoid valve, comprising a worktable (11), characterized in that: The upper surface of the workbench (11) is provided with four sets of slide rods (12), the top of each slide rod (12) is provided with a mounting plate (13), the upper surface of the mounting plate (13) is provided with a first hydraulic cylinder (14), the telescopic end of the first hydraulic cylinder (14) is connected to a sliding plate (15), the sliding plate (15) is sleeved on the surface of the slide rod (12) and is slidably connected to the slide rod (12); the upper surface of the workbench (11) is provided with two sets of second hydraulic cylinders (16), the telescopic end of the second hydraulic cylinders (16) is provided with a connecting plate (17); the upper surface of the workbench (11) is provided with a slide rail (18), a slider (19) is slidably connected on the slide rail (18), the upper surface of the slider (19) is provided with a solenoid valve (110), so that The solenoid valve (110) has an mounting sleeve (111) on its upper end face; it also includes a pressure relief mechanism, which has two sets. The pressure relief mechanism includes a fixed sleeve (21), which is located on the upper end face of the slide plate (15). A sliding sleeve (22) is slidably connected inside the fixed sleeve (21). A rivet sleeve (23) is provided on the lower end face of the sliding sleeve (22). A compression spring (24) is provided inside the fixed sleeve (21). One end of the compression spring (24) is fixedly connected to the top of the fixed sleeve (21), and the other end is connected to the upper end face of the sliding sleeve (22). A return pressure sleeve (25) is slidably connected inside the sliding sleeve (22). A push spring (26) is provided on the lower end face of the return pressure sleeve (25). The push spring (26) is further... One end is connected to the bottom of the sliding sleeve (22); an adjusting rod (27) is slidably connected coaxially inside the back pressure sleeve (25), one end of the adjusting rod (27) is provided with a hexagonal block (28), and the other end is provided with a first hexagonal groove (29); a connecting pipe (210) is provided on the upper end face of the sliding sleeve (22), a connecting block (211) is provided on the inner wall of the connecting pipe (210), a guide sleeve (212) is provided at the bottom of the connecting block (211), and a guide frame (213) is provided on the inner wall of the connecting pipe (210); a push rod (214) is slidably connected coaxially inside the guide frame (213), the push rod (214) is slidably connected to the guide sleeve (212), and a first hexagonal groove (29) is slidably connected on the surface of the push rod (214). A sealing disc (215) is provided with a support spring (216) on its lower end face. The other end of the support spring (216) is fixedly connected to the inner wall of the connecting block (211). A second sealing disc (217) is provided on the lower end face of the push rod (214). A pressure adjusting spring (218) is provided on the lower end face of the second sealing disc (217). The other end of the pressure adjusting spring (218) is connected to a threaded sleeve (219). The threaded sleeve (219) is threadedly connected to the inner wall of the connecting pipe (210). A second hexagonal groove (220) is opened at the bottom of the threaded sleeve (219). The second hexagonal groove (220) is adapted to the hexagonal block (28). A return groove (221) is opened inside the push rod (214).It also includes a quick-release mechanism, which includes a clamp (31) that is detachably connected to the connecting plate (17). The clamp (31) has a rod (32) on its side wall, and a slot (33) is formed on the surface of the rod (32).

2. The automatic riveting device for a solenoid valve according to claim 1, characterized in that: The side wall of the connecting plate (17) is provided with a fixing cylinder (34), and the outer surface of the fixing cylinder (34) is provided with a sliding groove (35). A sloping plate (36) is slidably connected in the sliding groove (35). A pushing ring (37) is connected to the end of the sloping plate (36). A first spring (38) is provided on the side wall of the pushing ring (37), and the other end of the first spring (38) is connected to the side wall of the connecting plate (17).

3. The automatic riveting device for a solenoid valve according to claim 2, characterized in that: The slide (35) is provided with a locking block (39), and the side wall of the locking block (39) is provided with a second spring (310) and a locking rod (311). The locking rod (311) is adapted to the locking groove (33), and the other end of the second spring (310) is fixedly connected to the outer surface of the fixed cylinder (34). The locking block (39) is adapted to the inclined plate (36).

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