Iron core riveting device for pressure relay
By designing a multi-rod core riveting device, precise angle adjustment and tight clamping of the pressure relay core were achieved, solving the problem of poor angle fixation and improving riveting quality and efficiency.
Patent Information
- Application Number
- CN202422734325.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-11-08
AI Technical Summary
The existing pressure relay core riveting device has poor angle fixing effect, resulting in poor riveting and affecting the performance and production quality of the pressure relay.
A core riveting device was designed, comprising a clamping table shaft, a guide table, a pressure support table, and a riveting device. The multi-rod structure driven by a cylinder and a motor enables precise angle adjustment and tight clamping of the core, ensuring the accuracy of the riveting process.
It improves the angle fixation effect and clamping tightness during the riveting process, reduces riveting deviation and breakage, and enhances the production quality and efficiency of pressure relays.
Smart Images
Figure CN223828391U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pressure relay technology, and more specifically, to a core riveting device for pressure relays. Background Technology
[0002] Pressure relays have wide applications in daily life, mainly in industrial automation, safety protection, and equipment control. The iron core of a pressure relay converts pressure signals into electrical signals through electromagnetic interaction. When the system pressure reaches a predetermined value, the iron core actuates under the influence of electromagnetic force, triggering the relay contacts to operate and control the circuit's on / off state.
[0003] However, the iron core needs to be riveted during the production of pressure relays. Before riveting, it is essential to ensure that the iron core and rivets are accurately positioned. Any slight positional deviation can lead to poor riveting and affect the performance of the pressure relay. Often, the riveting of pressure relays is performed by adjusting the angle using a workbench device. Since the riveting exerts a force on the pressure relay in a certain direction after angle adjustment, fixing the angle of the workbench device is particularly important.
[0004] Compared to traditional devices, the angle fixing device is not effective and cannot achieve precise riveting, resulting in a certain number of defective products. Therefore, it is necessary to improve and optimize the riveting device to improve the production efficiency and quality of pressure relays. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art, this utility model provides a core riveting device for pressure relays, which has the advantage of good fixing effect of the riveting angle adjustment device during riveting.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a core riveting device for a pressure relay, comprising a worktable, a transverse groove formed on the middle surface of the worktable, a clamping table shaft movably connected in the transverse groove, a clamping table structure provided on the upper surface of the clamping table shaft, a guide table movably sleeved on the outer surface of the clamping table shaft, and a pressure support fixedly welded to the front end surface of the guide table.
[0007] The left and right upper surfaces of the pressure support are each movably connected to a first fixing member at the front end, which penetrates the pressure support. A first fixing plate is fixedly installed on the upper curved surface of the first fixing member. The left and right upper surfaces of the pressure support are each movably connected to a second fixing member at the rear end, which penetrates the pressure support. A second fixing plate is fixedly installed on the middle curved surface of the second fixing member. A first spring is fixedly connected to the lower surfaces of the front and rear ends of the first fixing plate, and a second spring is fixedly connected to the lower surfaces of the front and rear ends of the second fixing plate.
[0008] The upper surface of the middle part of the pressure support is provided with a pressure structure, the front surface of the pressure support is provided with a rotating structure, the lower surface of the clamping table shaft is fixedly connected with a turntable, and the upper front surface of the worktable is provided with a riveting device.
[0009] As a preferred technical solution of this utility model: the clamping table structure includes a main support platform fixedly connected to the upper surface of the clamping table shaft. The upper surfaces of the front and rear ends of the main support platform are fixedly installed with sliding grooves. The upper surfaces of the front and rear ends of the main support platform are installed with a first sliding rod. The first sliding rod is located inside the sliding groove. A clamping plate is movably connected in the upper groove of the sliding groove. The first sliding rod passes through the lower left and right surfaces of the clamping plate. A motor is fixedly installed on the upper surface of the left front end of the main support platform. The output shaft of the motor is fixedly connected with a lead screw. The thread directions of the left and right curved surfaces of the lead screw are opposite. The left and right surfaces of the front end of the clamping plate are threadedly connected to the lead screw.
[0010] As a preferred technical solution of this utility model: the pressure structure includes a first fixing block fixedly installed on the upper surface of the middle part of the pressure support, a steel air pipe fixedly connected to the inner surface of the first fixing block, bidirectional telescopic rods fixedly connected to the left and right ends of the steel air pipe, and a cylinder fixedly connected to the front end surface of the steel air pipe.
[0011] As a preferred technical solution of this utility model: the rotating structure includes a second fixing block fixedly welded to the front surface of the pressure support, the upper groove of the second fixing block is fixedly connected to the cylinder, and a rotating rod is rotatably connected to the lower inner surface of the second fixing block, the rear inclined surface of the rotating rod is in contact with the front inclined surface of the turntable.
[0012] By rotating the rotating rod, the main support platform rotates around the axis of the clamping platform because the rear end of the rotating rod is in close contact with the turntable, thus realizing the angular rotation of the clamping platform structure.
[0013] As a preferred technical solution of this utility model: a third fixing block is fixedly welded to the lower surface of the left and right ends of the worktable, and a second sliding rod is fixedly connected in the third fixing block. The curved surface of the second sliding rod is movably connected to the holes at the front and rear ends of the lower end of the guide table.
[0014] As a preferred technical solution of this utility model: a frame bar is fixedly welded between the front and rear end surfaces of the main support platform, a third slide rod is fixedly connected in the hole of the frame bar, a support slider is movably connected to the curved surface in the middle of the third slide rod, a third spring is fixedly connected to the upper surface of the support slider, and a support platform is fixedly connected to the upper part of the third spring.
[0015] As a preferred technical solution of this utility model: the vertical rod of the second fixing member moves through the upper and lower surfaces of the rear end of the first fixing member plate, and the vertical rod of the first fixing member moves through the upper and lower surfaces of the front end of the second fixing plate.
[0016] As a preferred technical solution of this utility model: the riveting device includes a fourth fixing block fixedly installed on the upper front surface of the workbench. The riveting body is movably connected to the inner surface of the fourth fixing block. A riveting head is fixedly installed at the lower end of the riveting body. A handle is fixedly connected to the upper surface of the riveting body.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] 1. This utility model converts the pressure inside the bidirectional telescopic rod into upward force on the first fixing member and downward force on the first fixing member plate through the cylinder, thereby squeezing the upper and lower surfaces of the turntable. The squeezing creates a certain friction force, which fixes the angle of the turntable, thus fixing the rotation angle of the main support platform. Compared with traditional devices, improper angle fixing can cause certain deviations during riveting, thus affecting the performance of the pressure relay. This device has a good fixing effect and solves the quality problems caused by angle fixing.
[0019] 2. This utility model uses a motor to drive the rotation of a lead screw. Simultaneously, the threads at the left and right ends of the lead screw face are opposite in direction, causing relative movement of the clamping plates as the lead screw rotates. Furthermore, the continuous threads result in a higher clamping tightness. Compared to traditional devices, which may experience insufficient clamping and lead to breakage of the pressure relay during riveting, rendering the pressure relay unusable, this device offers superior clamping tightness, a simple structure, and strong practicality. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the frame structure of this utility model;
[0022] Figure 3 This is a schematic diagram of the second sliding rod structure of this utility model;
[0023] Figure 4 This is a schematic diagram of the supporting slider structure of this utility model;
[0024] Figure 5 This is a schematic diagram of the bidirectional telescopic rod structure of this utility model;
[0025] Figure 6 This is a schematic diagram of the turntable structure of this utility model;
[0026] Figure 7 This is a schematic diagram of the second spring structure of this utility model.
[0027] In the diagram: 1. Workbench; 2. Cross groove; 3. Clamping table pivot; 4. Guide table; 5. Pressure support table; 6. First fixing component; 7. First fixing component plate; 8. Second fixing component; 9. Second fixing plate; 10. First spring; 11. Second spring; 12. Turntable; 13. Main support table; 14. Slide groove; 15. First slide rod; 16. Clamping plate; 17. Motor; 18. Lead screw; 19. First fixing block; 20. Steel air pipe; 21. Bidirectional telescopic rod; 22. Cylinder; 23. Second fixing block; 24. Rotating rod; 25. Third fixing block; 26. Second slide rod; 27. Frame bar; 28. Third slide rod; 29. Support slider; 30. Third spring; 31. Support table; 32. Fourth fixing block; 33. Riveting body; 34. Riveting joint; 35. Handle. Detailed Implementation
[0028] 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.
[0029] like Figures 1 to 7 As shown, this utility model provides a core riveting device for pressure relays, including a workbench 1, a horizontal groove 2 is provided on the middle surface of the workbench 1, a clamping table shaft 3 is movably connected in the horizontal groove 2, a clamping table structure is provided on the upper surface of the clamping table shaft 3, a guide table 4 is movably sleeved on the outer surface of the clamping table shaft 3, and a pressure support 5 is fixedly welded to the front end surface of the guide table 4.
[0030] The left and right upper surfaces of the pressure support 5 are each movably connected to a first fixing member 6, which penetrates the pressure support 5. A first fixing plate 7 is fixedly installed on the upper curved surface of the first fixing member 6. The left and right upper surfaces of the pressure support 5 are each movably connected to a second fixing member 8, which penetrates the pressure support 5. A second fixing plate 9 is fixedly installed on the middle curved surface of the second fixing member 8. A first spring 10 is fixedly connected to the lower surfaces of the front and rear ends of the first fixing plate 7. A second spring 11 is fixedly connected to the lower surfaces of the front and rear ends of the second fixing plate 9.
[0031] The upper surface of the middle part of the pressure support 5 is provided with a pressure structure, the front surface of the pressure support 5 is provided with a rotating structure, the lower surface of the clamping table shaft 3 is fixedly connected with a turntable 12, and the upper front surface of the worktable 1 is provided with a riveting device.
[0032] After the worker places the rivet into the riveting device and the pressure relay to be riveted into the support platform 31, the position of the clamping plate 16 and the support slider 29 is adjusted to align the position of the pressure relay to be riveted with the riveting device. By rotating the rotating rod 24, the rear inclined surface of the rotating rod 24 is in contact with the front inclined surface of the turntable 12. The contact surface has friction, which will cause the main support platform 13 to rotate at a certain angle. After the angle adjustment is completed, the switch at the front end of the cylinder 22 is turned on, and the gas will be sent from the inside of the steel air pipe 20 to the bidirectional telescopic rod 21. Since the position of the bidirectional telescopic rod 21 is fixed, the second fixing plate 9 will move downward and the first fixing plate 7 will move upward. This will cause the lower upper surface of the first fixing member 6 to be in close contact with the lower lower surface of the turntable 12, and the lower lower surface of the second fixing member 8 to be in close contact with the lower upper surface of the turntable 12, thereby fixing the position of the turntable 12. The first spring 10 and the second spring 11 play a reset role.
[0033] The clamping platform structure includes a main support platform 13 fixedly connected to the upper surface of the clamping platform rotating shaft 3. The upper surfaces of the front and rear ends of the main support platform 13 are fixedly installed with slide grooves 14. The upper surfaces of the front and rear ends of the main support platform 13 are installed with first slide rods 15, which are located inside the slide grooves 14. A clamping plate 16 is movably connected in the upper groove of the slide grooves 14. The first slide rod 15 passes through the lower left and right surfaces of the clamping plate 16. A motor 17 is fixedly installed on the upper surface of the left front end of the main support platform 13. The output shaft of the motor 17 is fixedly connected with a lead screw 18. The thread directions of the left and right curved surfaces of the lead screw 18 are opposite. The left and right surfaces of the front end of the clamping plate 16 are threadedly connected to the lead screw 18.
[0034] The worker places the pressure relay to be riveted onto the support platform 31. At this time, the motor 17 is started. The rotation of the output shaft of the motor 17 drives the lead screw 18 to rotate. However, since the threads on the surface of the lead screw 18 are in opposite directions, the clamping plate 16, which is threaded to the surface of the lead screw 18, moves relative to each other, thereby fixing the left and right positions of the pressure relay. However, the sliding groove in the middle of the clamping plate 16 can also be replaced with clamping plates of different shapes to clamp the pressure relay. The sliding groove 14 specifies the movement trajectory of the clamping plate 16, and the first sliding rod 15 prevents the clamping plate 16 from tilting left and right.
[0035] The pressure structure includes a first fixing block 19 fixedly installed on the upper surface of the middle part of the pressure support 5. A steel air pipe 20 is fixedly connected to the inner surface of the first fixing block 19. Bidirectional telescopic rods 21 are fixedly connected to the left and right ends of the steel air pipe 20. A cylinder 22 is fixedly connected to the front end surface of the steel air pipe 20.
[0036] The operation of cylinder 22 causes gas to be injected into bidirectional telescopic rod 21, causing the telescopic parts at both ends of bidirectional telescopic rod 21 to extend and push the second fixing plate 9 and the first fixing plate 7, thereby clamping the turntable 12.
[0037] The rotating structure includes a second fixing block 23 fixedly welded to the front surface of the pressure support 5. The upper groove of the second fixing block 23 is fixedly connected to the cylinder 22. The lower inner surface of the second fixing block 23 is rotatably connected to a rotating rod 24. The rear inclined surface of the rotating rod 24 is in contact with the front inclined surface of the turntable 12.
[0038] By rotating the rotating rod 24, the main support platform 13 rotates around the clamping platform axis 3 because the rear end of the rotating rod 24 is in close contact with the turntable 12, thereby realizing the angular rotation of the clamping platform structure.
[0039] Among them, the lower surface of the left and right ends of the worktable 1 is fixedly welded with a third fixing block 25, and a second slide rod 26 is fixedly connected in the third fixing block 25. The curved surface of the second slide rod 26 is movably connected to the holes at the front and rear of the lower end of the guide table 4.
[0040] By moving the rotating rod 24, the device on the upper surface of the pressure support 5 can be moved left and right along the transverse groove 2, thereby changing the horizontal position of the clamping table.
[0041] Among them, a support bar 27 is fixedly welded between the front and rear end surfaces of the main support platform 13. A third slide bar 28 is fixedly connected in the hole of the support bar 27. A support slider 29 is movably connected to the curved surface in the middle of the third slide bar 28. A third spring 30 is fixedly connected to the upper surface of the support slider 29. A support platform 31 is fixedly connected to the upper part of the third spring 30.
[0042] The position of the pressure relay to be riveted is changed by moving the support slider 29, and the third spring 30 provides a buffering effect to the support platform 31.
[0043] The vertical rod of the second fixing member 8 moves through the upper and lower surfaces of the rear end of the first fixing member plate 7, and the vertical rod of the first fixing member 6 moves through the upper and lower surfaces of the front end of the second fixing plate 9.
[0044] The movement trajectory is limited by the vertical rod of the second fixing member 8 and the first fixing member 6, while providing a fulcrum for the reset effect of the first spring 10 and the second spring 11.
[0045] The riveting device includes a fourth fixing block 32 fixedly installed on the upper front surface of the workbench 1. The riveting body 33 is movably connected to the inner surface of the fourth fixing block 32. A riveting head 34 is fixedly installed at the lower end of the riveting body 33. A handle 35 is fixedly connected to the upper surface of the riveting body 33.
[0046] The pressure relay placed on the upper surface of the support platform 31 is riveted by moving the handle 35 and inserting the rivet into the rivet joint 34.
[0047] Working principle and usage process of this utility model:
[0048] After the worker places the rivet into the riveting device and the pressure relay to be riveted into the support platform 31, the position of the clamping plate 16 and the support slider 29 is adjusted to align the position of the pressure relay to be riveted with the riveting device. By rotating the rotating rod 24, the rear inclined surface of the rotating rod 24 is in contact with the front inclined surface of the turntable 12. The contact surface has friction, which will cause the main support platform 13 to rotate at a certain angle. After the angle adjustment is completed, the switch at the front end of the cylinder 22 is turned on, and the gas will be sent from the inside of the steel air pipe 20 to the bidirectional telescopic rod 21. Since the position of the bidirectional telescopic rod 21 is fixed, the second fixing plate 9 will move downward and the first fixing plate 7 will move upward. This will cause the lower upper surface of the first fixing member 6 to be in close contact with the lower lower surface of the turntable 12, and the lower lower surface of the second fixing member 8 to be in close contact with the lower upper surface of the turntable 12, thereby fixing the position of the turntable 12. The first spring 10 and the second spring 11 play a reset role.
[0049] The worker places the pressure relay to be riveted onto the support platform 31. At this time, the motor 17 is started. The rotation of the output shaft of the motor 17 drives the lead screw 18 to rotate. However, since the threads on the surface of the lead screw 18 are in opposite directions, the clamping plate 16, which is threaded to the surface of the lead screw 18, moves relative to each other, thereby fixing the left and right positions of the pressure relay. However, the sliding groove in the middle of the clamping plate 16 can also be replaced with clamping plates of different shapes to clamp the pressure relay. The sliding groove 14 specifies the movement trajectory of the clamping plate 16, and the first sliding rod 15 prevents the clamping plate 16 from tilting left and right.
[0050] The operation of cylinder 22 causes gas to be injected into bidirectional telescopic rod 21, causing the telescopic parts at both ends of bidirectional telescopic rod 21 to extend and push the second fixing plate 9 and the first fixing plate 7, thereby clamping the turntable 12.
[0051] By rotating the rotating rod 24, the main support platform 13 rotates around the clamping platform axis 3 because the rear end of the rotating rod 24 is in close contact with the turntable 12, thereby realizing the angular rotation of the clamping platform structure.
[0052] By moving the rotating rod 24, the device on the upper surface of the pressure support 5 can be moved left and right along the transverse groove 2, thereby changing the horizontal position of the clamping table.
[0053] The position of the pressure relay to be riveted is changed by moving the support slider 29, and the third spring 30 provides a buffering effect to the support platform 31.
[0054] The movement trajectory is limited by the vertical rod of the second fixing member 8 and the first fixing member 6, while providing a fulcrum for the reset effect of the first spring 10 and the second spring 11.
[0055] The pressure relay placed on the upper surface of the support platform 31 is riveted by moving the handle 35 and inserting the rivet into the rivet joint 34.
[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0057] 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A core riveting device for a pressure relay, comprising a worktable (1), characterized in that: The workbench (1) has a horizontal groove (2) on its middle surface. A clamping table shaft (3) is movably connected in the horizontal groove (2). A clamping table structure is provided on the upper surface of the clamping table shaft (3). A guide table (4) is movably sleeved on the outer surface of the clamping table shaft (3). A pressure support (5) is fixedly welded to the front end surface of the guide table (4). The pressure support (5) is movably connected to the front end of the upper surface of both the left and right sides by a first fixing member (6) that penetrates the pressure support (5). The upper curved surface of the first fixing member (6) is fixedly mounted with a first fixing plate (7). The rear end of the upper surface of both the left and right sides of the pressure support (5) is movably connected to a second fixing member (8) that penetrates the pressure support (5). The middle curved surface of the second fixing member (8) is fixedly mounted with a second fixing plate (9). The lower surfaces of the front and rear ends of the first fixing plate (7) are fixedly connected with a first spring (10). The lower surfaces of the front and rear ends of the second fixing plate (9) are fixedly connected with a second spring (11). The upper surface of the middle part of the pressure support (5) is provided with a pressure structure, the front surface of the pressure support (5) is provided with a rotating structure, the lower surface of the clamping table shaft (3) is fixedly connected with a turntable (12), and the upper front surface of the worktable (1) is provided with a riveting device.
2. The iron core riveting device for a pressure relay according to claim 1, characterized in that: The clamping platform structure includes a main support platform (13) fixedly connected to the upper surface of the clamping platform shaft (3). The upper surfaces of the front and rear ends of the main support platform (13) are fixedly installed with slide grooves (14). The upper surfaces of the front and rear ends of the main support platform (13) are connected with first slide rods (15). The first slide rods (15) are located inside the slide grooves (14). A clamping plate (16) is movably connected in the upper groove of the slide grooves (14). The first slide rods (15) penetrate the lower left and right surfaces of the clamping plate (16). A motor (17) is fixedly installed on the upper surface of the left front end of the main support platform (13). The output shaft of the motor (17) is fixedly connected with a lead screw (18). The thread directions of the left and right curved surfaces of the lead screw (18) are opposite. The left and right surfaces of the front end of the clamping plate (16) are threadedly connected to the lead screw (18).
3. The iron core riveting device for a pressure relay according to claim 1, characterized in that: The pressure structure includes a first fixing block (19) fixedly installed on the upper surface of the middle part of the pressure support (5). A steel air pipe (20) is fixedly connected to the inner surface of the first fixing block (19). A bidirectional telescopic rod (21) is fixedly connected to the left and right ends of the steel air pipe (20). A cylinder (22) is fixedly connected to the front end surface of the steel air pipe (20).
4. The iron core riveting device for a pressure relay according to claim 1, characterized in that: The rotating structure includes a second fixing block (23) fixedly welded to the front surface of the pressure support (5). The upper groove of the second fixing block (23) is fixedly connected to the cylinder (22). The lower inner surface of the second fixing block (23) is rotatably connected to a rotating rod (24). The rear inclined surface of the rotating rod (24) is in contact with the front inclined surface of the turntable (12).
5. The iron core riveting device for a pressure relay according to claim 1, characterized in that: The lower surfaces of the left and right ends of the worktable (1) are fixedly welded with a third fixing block (25), and a second slide rod (26) is fixedly connected in the third fixing block (25). The curved surface of the second slide rod (26) is movably connected to the holes at the front and rear ends of the lower end of the guide table (4).
6. A core riveting device for a pressure relay according to claim 2, characterized in that: A frame bar (27) is fixedly welded between the front and rear ends of the main support platform (13). A third slide bar (28) is fixedly connected in the hole of the frame bar (27). A support slider (29) is movably connected to the curved surface in the middle of the third slide bar (28). A third spring (30) is fixedly connected to the upper surface of the support slider (29). A support platform (31) is fixedly connected to the upper part of the third spring (30).
7. The iron core riveting device for a pressure relay according to claim 1, characterized in that: The vertical rod of the second fixing member (8) moves through the upper and lower surfaces of the rear end of the first fixing member plate (7), and the vertical rod of the first fixing member (6) moves through the upper and lower surfaces of the front end of the second fixing plate (9).
8. A core riveting device for a pressure relay according to claim 1, characterized in that: The riveting device includes a fourth fixing block (32) fixedly installed on the upper front surface of the workbench (1). The riveting body (33) is movably connected to the inner surface of the fourth fixing block (32). A rivet head (34) is fixedly installed at the lower end of the riveting body (33). A handle (35) is fixedly connected to the upper surface of the riveting body (33).