A riveting device for an electromagnetic valve core

Abstract

The utility model provides a kind of riveting press device of electromagnetic valve core, including riveting press subassembly, riveting press subassembly includes, mounting plate, multiple guide posts fixedly installed on mounting plate, fixed plate installed in the top of guide post, floating press plate located in the lower side of fixed plate, guide post passes through the floating press plate along up-down direction, and floating press plate can slide along the guide post up-down, fixed plate is equipped with electric cylinder, lift motor for driving electric cylinder, the lower end of the driving rod of electric cylinder is connected with the floating press plate, the lower side of the floating press plate is equipped with pressure head, riveting press subassembly further includes lower die seat subassembly installed in the lower side of floating press plate, the lower die seat subassembly is used to place the electromagnetic valve core to be riveted, the placement area of electromagnetic valve core is located in the just below of pressure head.The utility model's riveting press device of electromagnetic valve core uses servo electric cylinder and lift motor as driving source, control is more accurate, and down pressure degree and stroke can be accurately set.

Description

Technical Field

[0001] This utility model relates to the field of solenoid valve technology, and more specifically, to a riveting device for a solenoid valve core. Background Technology

[0002] The description in this section provides only background information related to the disclosure of this utility model and does not constitute prior art.

[0003] As the core actuating component of a solenoid valve, the quality of its riveting assembly directly affects the reliability of the valve's operation. During the riveting assembly process, high precision is required in controlling the downward pressure and the insertion depth.

[0004] Traditional riveting devices mostly use pneumatic or hydraulic power as the driving source. Although pneumatic drive is lower in cost and faster in operation, its pressure control accuracy is poor, and fluctuations in air pressure can easily lead to inconsistent riveting quality, making it difficult to guarantee product yield. Hydraulic drive can provide higher pressure, but it suffers from problems such as large equipment size, risk of oil leakage, high noise, complex maintenance, and relatively slow response speed, making it difficult to meet the needs of high-efficiency, high-cleanliness automated production.

[0005] Furthermore, both pneumatic and hydraulic drives lack precise control over stroke and pressure, making it difficult to achieve accurate riveting curves. When riveting precision components such as solenoid valve cores, even minor deviations in force or stroke can damage, deform, or cause misalignment of internal components like the armature. Therefore, a more precise and stable riveting device is urgently needed.

[0006] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Summary of the Invention

[0007] The technical problem to be solved by this utility model is to provide a riveting device for the iron core of a solenoid valve.

[0008] To solve the above-mentioned technical problems, this utility model provides a riveting device for an electromagnetic valve core. The riveting device includes a riveting assembly, which includes a mounting plate, multiple guide posts fixedly mounted on the mounting plate, a fixed plate mounted on the top of the guide posts, and a floating pressure plate located below the fixed plate. The guide posts pass through the floating pressure plate in a vertical direction, and the floating pressure plate can slide up and down along the guide posts. An electric cylinder and a lifting motor for driving the electric cylinder are mounted on the fixed plate. The lower end of the drive rod of the electric cylinder is connected to the floating pressure plate. A pressure head is mounted on the lower side of the floating pressure plate. The riveting assembly also includes a lower die base assembly mounted below the floating pressure plate. The lower die base assembly is used to place the electromagnetic valve core to be riveted, and the placement area of ​​the electromagnetic valve core is located directly below the pressure head.

[0009] Preferably, the lower mold base assembly includes a lower mold base, a base plate placed on the lower mold base, and a support mounted on the base plate. The support is provided with a positioning mold core for placing the solenoid valve core to be riveted. The positioning mold core includes a conical head for placing the solenoid valve core to be riveted, and the conical head is located directly below the pressing head.

[0010] Preferably, the bearing base plate is also equipped with handles on the left and right sides, which are used to lift the bearing base plate and detach it from the lower mold base.

[0011] Preferably, the solenoid valve core includes a sleeve-shaped armature and a valve core. One end of the armature has a riveting hole, and the valve core passes through the riveting hole. An annular riveting groove is provided in the middle of the valve core, and a foolproof groove is also provided on the lower side of the riveting groove. The valve core is inserted into the riveting hole, and the riveting groove and the riveting hole are riveted together. The lower end of the armature is sleeved on the conical head, and the pressure head presses the upper end of the valve core.

[0012] Preferably, the mounting plate is further provided with a material leakage sensor, which is used to detect whether the solenoid valve core to be riveted is placed on the lower mold base assembly. The material leakage sensor is also used to determine whether the armature and valve core to be riveted are installed backwards by detecting the position of the anti-fooling groove.

[0013] Preferably, the riveting device further includes a force position sensor, which is used to detect the pressure and displacement of the solenoid valve core during the riveting process. When the pressure and displacement measured by the force position sensor reach a preset range, it is determined to be a good product; otherwise, it is determined to be a defective product.

[0014] Preferably, the riveting device further includes an upper frame and a lower frame. The riveting assembly is installed on the upper frame, and a waste collection device is installed on the lower frame. The waste collection device includes a waste bin and a waste pipe installed on the waste bin. Waste is fed into the waste bin from the upper port of the waste pipe. The waste bin is equipped with a waste bin door. A waste sensor is installed on the waste pipe. When the force sensor determines that the product is defective, the waste sensor is used to detect whether waste is passing through. When the waste sensor detects that waste is passing through, the riveting assembly continues to work; otherwise, it stops working.

[0015] Preferably, the riveting device further includes a detection camera, which is used to determine whether the solenoid valve core to be riveted is placed correctly.

[0016] Based on the above technical solution, the beneficial effects of this utility model are as follows:

[0017] This utility model discloses a riveting device for an electromagnetic valve core. It employs a servo electric cylinder and a lifting motor as the drive source, enabling more precise control. Both the downward pressure and stroke can be accurately set, achieving rapid riveting and improving production efficiency. The electromagnetic valve core of this application is equipped with an anti-foolproof groove to prevent the core from being upside down when installed on the armature. Additionally, a force-position sensor is included to monitor the pressure-displacement curve and control the riveting deformation, preventing excessive compression. A leakage sensor is also installed to detect the presence of a workpiece at the workstation. If no workpiece is detected, a signal is sent to interrupt the riveting process, preventing air pressure and equipment damage. The waste collection device of this application also prevents operators from mistakenly mixing defective products with good products, thereby reducing human-caused quality risks. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the riveting device of this utility model.

[0019] Figure 2 This is a structural schematic diagram of the riveting assembly of this utility model.

[0020] Figure 3 This is a structural schematic diagram of the riveting assembly of this utility model.

[0021] Figure 4 This is a structural schematic diagram of the lower mold base assembly of this utility model.

[0022] Figure 5 This is an exploded structural diagram of the lower mold base assembly of this utility model.

[0023] Figure 6 This is a schematic diagram of the waste collection device of this utility model.

[0024] Figure 7 This is a schematic diagram of the structure of the solenoid valve core of this application.

[0025] Figure 8 This is a schematic diagram of the structure of the solenoid valve core after it has been riveted.

[0026] The components are as follows: 100, riveting assembly; 200, upper frame; 300, lower frame; 400, waste collection device; 1, lifting motor; 2, electric cylinder; 3, fixing plate; 4, guide post; 5, floating pressure plate; 6, guide sleeve; 7, pressure head; 8, lower mold base assembly; 9, mounting plate; 10, leakage sensor.

[0027] 81. Base plate of bearing seat; 82. Lower mold base; 83. Handle; 84. Bearing seat; 85. Positioning mold core; 86. Positioning ring;

[0028] 11. Waste bin body; 12. Waste pipe; 111. Waste bin door;

[0029] 20. Valve core; 21. Riveting groove; 22. Anti-fooling groove; 30. Armature; 31. Riveting hole. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] It should be noted that in the description of this utility model, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] like Figure 1-3As shown, this utility model provides a riveting device for an electromagnetic valve core. The riveting device includes a riveting assembly 100, which includes a mounting plate 9, a plurality of guide posts 4 fixedly mounted on the mounting plate 9, a fixing plate 3 mounted on the top of the guide posts 4, and a floating pressure plate 5 located below the fixing plate 3. The guide posts 4 pass through the floating pressure plate 5 in a vertical direction, and the floating pressure plate 5 can slide up and down along the guide posts 4. An electric cylinder 2 and a lifting motor 1 for driving the electric cylinder 2 are mounted on the fixing plate 3. The lower end of the drive rod of the electric cylinder 2 is connected to the floating pressure plate 5. A pressure head 7 is mounted on the lower side of the floating pressure plate 5. The riveting assembly 100 also includes a lower die base assembly 8 mounted on the lower side of the floating pressure plate 5. The lower die base assembly 8 is used to place the electromagnetic valve core to be riveted, and the placement area of ​​the electromagnetic valve core is located directly below the pressure head 7. The riveting device for the solenoid valve core of this utility model uses a servo electric cylinder 2 and a lifting motor 1 as the drive source, which makes the control more precise. The downward pressure and stroke can be precisely set, realizing rapid riveting and improving production efficiency.

[0033] like Figure 4 As shown, the lower mold base assembly 8 includes a lower mold base 82, a base plate 81 placed on the lower mold base 82, and a support 84 mounted on the base plate 81. The support 84 is provided with a positioning mold core 85 for placing the solenoid valve core to be riveted. The positioning mold core 85 includes a conical head, which is used to place the solenoid valve core to be riveted and is located directly below the pressure head 7. Handles 83 are also installed on the left and right sides of the base plate 81, which are used to lift the base plate 81 and detach it from the lower mold base 82.

[0034] like Figure 7 and 8 As shown, the solenoid valve core includes a sleeve-shaped armature 30 and a valve core 20. One end of the armature 30 has a riveting hole 31, through which the valve core 20 passes. An annular riveting groove 21 is formed in the middle of the valve core 20. A foolproof groove 22 is also formed below the riveting groove 21 on the valve core 20. The valve core 20 is inserted into the riveting hole 31, and the riveting groove 21 and the riveting hole 31 are riveted together. The lower opening of the armature 30 is fitted onto the conical head, and the pressure head 7 presses against the upper end of the valve core 20. The foolproof groove 22 prevents the valve core 20 from being installed upside down on the armature 30.

[0035] like Figure 3As shown, the mounting plate 9 is also equipped with a material leakage sensor 10. The material leakage sensor 10 is used to detect whether a solenoid valve core to be riveted is placed on the lower mold base assembly 8. The material leakage sensor 10 is also used to determine whether the armature 30 and valve core 20 to be riveted are installed backwards by detecting the position of the anti-misalignment groove 22. The material leakage sensor 10 is used to detect whether there is a workpiece at the workstation. If no workpiece is detected, a signal will be issued to interrupt the riveting process to avoid air pressure and equipment damage. The riveting device also includes a force-position sensor (not shown in the figure). The force-position sensor is used to detect the pressure of the solenoid valve core and the displacement of the valve core 20 during the riveting process. When the pressure and displacement measured by the force-position sensor reach a preset range, it is determined to be a good product; otherwise, it is determined to be a defective product. The force-position sensor controls the riveting deformation by monitoring the pressure-displacement curve to prevent excessive compression.

[0036] like Figure 1 As shown, the riveting device further includes an upper frame 200 and a lower frame 300. The riveting assembly 100 is mounted on the upper frame 200, and a waste collection device 400 is mounted on the lower frame 300. Figure 6 As shown, the waste collection device 400 includes a waste bin 11 and a waste pipe 12 installed on the waste bin 11. Waste is fed into the waste bin 11 from the upper port of the waste pipe 12. The waste bin 11 is equipped with a waste bin door 111. A waste sensor is installed on the waste pipe 12. When the force sensor determines that the product is defective, the waste sensor is used to detect whether waste is passing through. When the waste sensor detects that waste is passing through, the riveting assembly 100 continues to work; otherwise, it stops working. The waste collection device 400 also prevents operators from mistakenly mixing defective products with good products, thereby reducing quality risks caused by human error. The riveting device also includes a detection camera (not shown in the figure), which is used to determine whether the solenoid valve core to be riveted is placed correctly.

[0037] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A riveting device for a solenoid valve core, characterized in that, The riveting device includes a riveting assembly, which includes, A mounting plate, multiple guide posts fixedly mounted on the mounting plate, a fixing plate mounted on top of the guide posts, and a floating pressure plate located below the fixing plate. The guide post passes through the floating pressure plate in the vertical direction, and the floating pressure plate can slide up and down along the guide post. An electric cylinder and a lifting motor for driving the electric cylinder are mounted on the fixed plate. The lower end of the drive rod of the electric cylinder is connected to the floating pressure plate. A pressure head is installed on the lower side of the floating pressure plate. The riveting assembly also includes a lower die base assembly installed on the lower side of the floating pressure plate. The lower die assembly is used to place the solenoid valve core to be riveted, and the placement area of ​​the solenoid valve core is located directly below the pressure head.

2. The riveting device according to claim 1, characterized in that, The lower die base assembly includes a lower die base, a base plate placed on the lower die base, and a support mounted on the base plate. The support is provided with a positioning die core for placing the solenoid valve core to be riveted. The positioning die core includes a conical head for placing the solenoid valve core to be riveted, and the conical head is located directly below the pressing head.

3. The riveting device according to claim 2, characterized in that, The bearing base plate is also equipped with handles on both the left and right sides, which are used to lift the bearing base plate and detach it from the lower mold base.

4. The riveting device according to claim 2, characterized in that, The solenoid valve core includes a sleeve-shaped armature and a valve core. One end of the armature has a riveting hole, through which the valve core passes. An annular riveting groove is formed in the middle of the valve core, and a foolproof groove is formed on the lower side of the riveting groove. The valve core is inserted into the riveting hole, and the riveting groove and the riveting hole are riveted together. The lower end of the armature is sleeved on the conical head, and the pressure head presses the upper end of the valve core.

5. The riveting device according to claim 4, characterized in that, The mounting plate is also equipped with a material leakage sensor, which is used to detect whether the solenoid valve core to be riveted is placed on the lower mold base assembly. The material leakage sensor is also used to determine whether the armature and valve core to be riveted are installed backwards by detecting the position of the anti-fooling groove.

6. The riveting device according to claim 5, characterized in that, The riveting device also includes a force position sensor, which is used to detect the pressure and displacement of the solenoid valve core during the riveting process. When the pressure and displacement measured by the force position sensor reach a preset range, it is determined to be a good product; otherwise, it is determined to be a defective product.

7. The riveting device according to claim 6, characterized in that, The riveting device further includes an upper frame and a lower frame, and the riveting assembly is mounted on the upper frame. A waste collection device is installed on the lower frame. The waste collection device includes a waste bin and a waste pipe installed on the waste bin. Waste is fed into the waste bin from the upper port of the waste pipe. The waste bin is equipped with a waste bin door. Waste sensors are installed on the waste pipe. When the force sensor determines that the product is defective, the scrap sensor is used to detect whether scrap passes through. When the scrap sensor detects that scrap passes through, the riveting assembly continues to work; otherwise, it stops working.

8. The riveting device according to claim 7, characterized in that, The riveting device also includes a detection camera, which is used to determine whether the solenoid valve core to be riveted is placed correctly.

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