Centering, sealing and riveting device for ejector pin of temperature sensing rod

By designing a sealing and riveting device for the temperature-sensing rod pin, and utilizing the synergistic effect of the clamping module and the riveting module, the problem of pin shaking during the sealing and riveting process was solved, achieving stable riveting between the pin and the sealed product, and improving the production efficiency of the temperature-sensing rod.

CN224222540UActive Publication Date: 2026-05-12广州市振宸自动化设备有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
广州市振宸自动化设备有限公司
Filing Date
2025-05-27
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The temperature sensing rod pins wobble during the sealing and riveting process, making it difficult to position and rivet, which affects production efficiency and user assembly.

Method used

Design a temperature-sensing rod pin center sealing riveting device, including a base, a riveting module, a clamping module and a loading module. The clamping module holds the pin and the riveting module is used for positioning and riveting. Combined with the coordinated movement of the drive cylinder and the cylinder piston rod, the pin is stably riveted.

Benefits of technology

This improved the riveting efficiency between the ejector pin and the sealing material, thereby increasing the assembly and production efficiency of the temperature sensing rod.

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Abstract

The utility model discloses a temperature sensing rod ejector pin centering sealing riveting device which comprises a base, a riveting module, a material clamping module and a material loading module, the material loading module is installed on the base, the riveting module is installed on the base, and the material clamping module is installed at the riveting module; the riveting module is fixedly installed on the base through a fixing frame and comprises a material pressing air cylinder, a pressing head and a material pressing base. The material clamping module is fixedly installed on one side of the fixing frame through an installation frame and comprises a wedge-shaped pressing plate, a material clamping air cylinder and clamping jaws symmetrically arranged at the ends of two piston rods of the material clamping air cylinder. According to the device, a sealing product of a temperature sensing rod and an ejector pin are placed in the riveting jig, the riveting jig is moved to the position below the riveting module through the driving air cylinder, the ejector pin can be clamped and straightened through the clamping module, the ejector pin is pressed downwards and jacked through the pressing module, meanwhile, the clamping module is opened, and the ejector pin can be riveted into the sealing product. The riveting efficiency between the ejector pin and the sealing product is effectively improved, and the assembly production efficiency of the temperature sensing rod is improved.
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Description

Technical Field

[0001] This utility model relates to the field of temperature sensing rod production technology, specifically to a temperature sensing rod top pin center sealing and riveting device. Background Technology

[0002] Temperature sensing rods are widely used in various temperature control valve bodies. Due to their relatively long overall size, the assembly process of each step is difficult. When installing the temperature sensing rod pin, the pin has a certain amount of room to move at the sealing point during the riveting process, causing it to wobble and making it difficult to position and rivet. This affects the production efficiency of the temperature sensing rod and makes it inconvenient for users to assemble it. Utility Model Content

[0003] To solve the above technical problems, a sealing and riveting device for the centering of the temperature sensing rod pin is provided, which effectively improves the riveting and assembly efficiency of the temperature sensing rod pin and improves the overall production efficiency of the temperature sensing rod.

[0004] To achieve the above objectives, the following solution is provided: a temperature sensing rod top-pin center sealing riveting device, comprising a base, a riveting module, a clamping module, and a loading module, wherein the loading module is mounted on the base, the riveting module is mounted on the base and is located above the loading module, and the clamping module is mounted at the riveting module.

[0005] The riveting module is fixedly installed on the base by a fixing frame. The riveting module includes a pressing cylinder, a pressing head and a pressing seat. The pressing cylinder is fixedly installed at the fixing frame. A pressing head is installed at the end of the piston rod of the pressing cylinder. A pressing seat is installed at the pressing head. An insertion hole is opened at the pressing seat.

[0006] The clamping module is fixedly installed on one side of the fixed frame by the mounting bracket. The clamping module includes a wedge-shaped pressure plate, a clamping cylinder, and clamps symmetrically arranged at the ends of the two piston rods of the clamping cylinder. Guide wheels are installed at the clamps and are adapted to the wedge-shaped pressure plate. The wedge-shaped pressure plate is fixedly connected to the pressure head through the mounting plate, and a positioning rod is installed at the clamps.

[0007] Furthermore, the loading module includes a guide rail, a drive cylinder, a movable seat, and a riveting fixture. The movable seat is slidably mounted on the base via the guide rail. The riveting fixture is mounted on the movable seat and is located directly below the riveting module. A drive cylinder is mounted on the base, and the piston rod of the drive cylinder is connected to the movable seat. The drive cylinder is arranged parallel to the guide rail.

[0008] Furthermore, the end of the socket near the loading module has a rounded corner.

[0009] Furthermore, the gripper is provided with a slot that matches the tip of the temperature sensing rod.

[0010] Furthermore, movable grooves are provided on both sides of the pressure head, and the movable grooves are adapted to the grippers.

[0011] Furthermore, a slide rail is provided between the mounting plate and the fixing frame.

[0012] Furthermore, a clamping plate is installed at the gripper, and the inner side of the clamping plate is provided with a groove that matches the outer wall of the riveting fixture.

[0013] The working principle and advantages of this utility model are as follows: This temperature-sensing rod top pin sealing and riveting device places the sealing part and the top pin of the temperature-sensing rod in the riveting fixture, and then moves the riveting fixture to the bottom of the riveting module by the action of the driving cylinder. The clamping module and the riveting module are then activated. The clamping module clamps and straightens the top pin, and then the pressing module presses down on the top pin while opening the clamping module, thus pressing the top pin into the sealing part, completing the riveting between the top pin and the sealing part. This device can effectively improve the riveting efficiency between the top pin and the sealing part, thereby improving the assembly production efficiency of the temperature-sensing rod. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is a structural diagram of the clamping module of this utility model;

[0016] Figure 3 This is a structural diagram of the riveting module of this utility model.

[0017] The reference numerals in the accompanying drawings include:

[0018] 1. Base, 2. Fixing frame, 3. Pressing cylinder, 4. Pressing head, 5. Movable groove, 6. Pressing seat, 7. Insertion hole, 8. Mounting plate, 9. Wedge-shaped pressure plate, 10. Mounting bracket, 11. Clamping cylinder, 12. Clamping claw, 13. Slot, 14. Guide wheel, 15. Guide rail, 16. Drive cylinder, 17. Movable seat, 18. Riveting fixture, 19. Clamping plate, 20. Positioning rod. Detailed Implementation

[0019] The following detailed explanation illustrates the specific implementation methods:

[0020] like Figures 1 to 3 As shown:

[0021] A temperature sensor pin center sealing and riveting device includes a base 1, a riveting module, a clamping module, and a loading module. The base 1 is used to install and fix the other modules. The loading module is installed on the base 1 and is used to load the temperature sensor seal and the pin to be riveted. The riveting module is installed on the base 1 and is located above the loading module. The riveting module is used to rivet the seal and the pin. The clamping module is installed at the riveting module and is used to clamp and position the pin.

[0022] The riveting module is fixedly installed on the base 1 by the fixing frame 2. The riveting module includes a pressing cylinder 3, a pressing head 4 and a pressing seat 6. The pressing cylinder 3 is fixedly installed at the fixing frame 2. The pressing head 4 is installed at the end of the piston rod of the pressing cylinder 3. The pressing cylinder 3 is used to press down or raise the pressing head 4. The pressing seat 6 is installed at the pressing head 4. The pressing head 4 is used to install the pressing seat 6. The pressing seat 6 is used to contact the ejector pin and directly press the ejector pin. The pressing seat 6 has an insertion hole 7. The insertion hole 7 is used to insert the ejector pin and position and press the ejector pin.

[0023] The clamping module is fixedly mounted on one side of the fixing frame 2 via the mounting bracket 10. The clamping module includes a wedge-shaped pressure plate 9, a clamping cylinder 11, and clamps 12 symmetrically arranged at the ends of the two piston rods of the clamping cylinder 11. The clamping cylinder 11 is a double-piston rod cylinder. The two clamps 12 are respectively installed at the ends of the two piston rods of the clamping cylinder 11. Guide wheels 14 are installed at the clamps 12. The guide wheels 14 are adapted to the wedge-shaped pressure plate 9. The two sides of the wedge-shaped pressure plate 9 are symmetrical inclined surfaces. The wedge-shaped pressure plate 9 is located between the two guide wheels 14 of the two clamps 12. When the wedge-shaped pressure plate 9 is pressed down... It can be inserted from the middle of the two guide wheels 14, thereby pushing the two guide wheels 14 apart. The wedge-shaped pressure plate 9 is fixedly connected to the pressure head 4 through the mounting plate 8, so that when the pressure head 4 presses down, it can drive the wedge-shaped pressure plate 9 to move together. A positioning rod 20 is installed at the jaw 12. The front end of the positioning rod 20 is angled to facilitate the movement of the ejector pin between the two positioning rods 20. The positioning rods 20 at the two jaws 12 work together when the two jaws 12 close to clamp the ejector pin, positioning the ejector pin in the front-back direction. The jaws 12 position the ejector pin in the left-right direction.

[0024] The loading module includes a guide rail 15, a drive cylinder 16, a movable seat 17, and a riveting fixture 18. The movable seat 17 is slidably mounted on the base 1 via the guide rail 15. The riveting fixture 18 is mounted on the movable seat 17 and is located directly below the riveting module, allowing the riveting fixture 18 to move back and forth. The base 1 is equipped with a drive cylinder 16, whose piston rod is connected to the movable seat 17. The drive cylinder 16 is arranged parallel to the guide rail 15 and is used to drive the movable seat 17 and the riveting fixture 18 to move back and forth.

[0025] The end of the socket 7 near the loading module is rounded to facilitate the insertion of the temperature sensor pin into the socket 7.

[0026] The gripper 12 is provided with a slot 13 that is adapted to the temperature sensing rod pin, so that the gripper 12 can position the pin through the slot 13.

[0027] Movable grooves 5 are provided on both sides of the pressure head 4. The movable grooves 5 are adapted to the grippers 12, so that the grippers 12 can enter the movable grooves 5, thus avoiding the grippers 12 interfering with the movement of the pressure head 4.

[0028] A slide rail is provided between the mounting plate 8 and the fixing frame 2, which can enhance the stability of the movement of the wedge pressure plate 9.

[0029] A clamping plate 19 is installed at the jaw 12. The inner side of the clamping plate 19 is provided with a groove that matches the outer side wall of the riveting fixture 18. When the jaw 12 clamps the ejector pin, the clamping plate 19 can clamp on the outside of the riveting fixture 18, thereby improving the stability of the jaw 12 clamping.

[0030] The specific implementation process is as follows:

[0031] When using this temperature-sensing rod pin in the sealing and riveting device, firstly, the piston rod of the drive cylinder 16 extends, pushing the movable seat 17 along the guide rail 15 to push the riveting fixture 18 out of the riveting module. Then, the corresponding temperature-sensing rod seal and pin are installed at the riveting fixture 18. At this time, the two piston rods of the clamping cylinder 11 are in the extended state, that is, the two grippers 12 are in the separated state, and the piston rod of the pressing cylinder 3 is in the retracted state, that is, the pressing head 4 and the pressing seat 6 are in the lifted state, and the upper end of the temperature-sensing rod pin is in the free-moving state. After the temperature-sensing rod pin is placed at the fixture, the piston rod of the drive cylinder 16 retracts, causing the movable seat 17 to move the riveting fixture 18 directly below the riveting module. Then, the clamping cylinder 11 is activated, the piston rod of the clamping cylinder 11 retracts, and the two grippers 12 move synchronously with the two piston rods. The positioning rods 20 at the two grippers 12 work together, acting at an angle at their front ends. The ejector pin moves between the two positioning rods 20, which then clamp and position the front and rear sides of the ejector pin. The two grippers 12 position the left and right sides of the ejector pin until the slots 13 at the two grippers 12 clamp the top of the ejector pin. Then, the piston rod of the pressing cylinder 3 extends, driving the pressing head 4 to press down. The pressing head 4 drives the pressing seat 6 and the wedge-shaped pressing plate 9 to press down. The pressing seat 6 is pressed down to connect with the top of the ejector pin. At this time, the wedge-shaped pressing plate 9 and the two grippers 12 clamp the top of the ejector pin. The guide wheels 14 at the claw 12 abut against each other, the pressure head 4 continues to press down, and the wedge-shaped pressure plate 9 is inserted between the two guide wheels 14 under the action of the inclined surfaces on both sides, pushing the two guide wheels 14 apart. The two guide wheels 14 drive the two grippers 12 to move, and the two grippers 12 can separate and release the ejector pin. At the same time, the insertion hole 7 at the pressure seat 6 is fitted into the top of the ejector pin. The pressure head 4 and the pressure seat 6 continue to press down, and the ejector pin can be pressed into the temperature sensor seal. After the ejector pin is riveted, the device is reset.

[0032] This temperature-sensing rod top-pin sealing and riveting device places the temperature-sensing rod's sealing material and top pin in a riveting fixture. Then, the driving cylinder 16 moves the riveting fixture 18 to below the riveting module, activating the clamping module and the riveting module. The clamping module clamps and straightens the top pin, and then the pressing module presses down on the top pin while simultaneously opening the clamping module, thus pressing the top pin into the sealing material, completing the riveting between the top pin and the sealing material. This device can effectively improve the riveting efficiency between the top pin and the sealing material, thereby improving the assembly production efficiency of the temperature-sensing rod.

[0033] The above description is merely an embodiment of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the applicability of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A device for sealing and riveting the top of a temperature-sensing rod, characterized in that: It includes a base, a riveting module, a clamping module, and a loading module. The loading module is installed on the base, the riveting module is installed on the base and located above the loading module, and the clamping module is installed at the riveting module. The riveting module is fixedly installed on the base by a fixing frame. The riveting module includes a pressing cylinder, a pressing head and a pressing seat. The pressing cylinder is fixedly installed at the fixing frame. A pressing head is installed at the end of the piston rod of the pressing cylinder. A pressing seat is installed at the pressing head. An insertion hole is opened at the pressing seat. The clamping module is fixedly installed on one side of the fixed frame by the mounting bracket. The clamping module includes a wedge-shaped pressure plate, a clamping cylinder, and clamps symmetrically arranged at the ends of the two piston rods of the clamping cylinder. Guide wheels are installed at the clamps and are adapted to the wedge-shaped pressure plate. The wedge-shaped pressure plate is fixedly connected to the pressure head through the mounting plate, and a positioning rod is installed at the clamps.

2. The temperature sensing rod top pin center sealing riveting device according to claim 1, characterized in that: The loading module includes a guide rail, a drive cylinder, a movable seat, and a riveting fixture. The movable seat is slidably mounted on the base via the guide rail. The riveting fixture is mounted on the movable seat and is located directly below the riveting module. A drive cylinder is mounted on the base, and the piston rod of the drive cylinder is connected to the movable seat. The drive cylinder is arranged parallel to the guide rail.

3. The temperature sensing rod top pin center sealing riveting device according to claim 1, characterized in that: The end of the socket near the loading module has a rounded corner.

4. The temperature sensing rod top pin center sealing riveting device according to claim 1, characterized in that: The gripper is provided with a slot that matches the tip of the temperature sensing rod.

5. The temperature sensing rod top pin center sealing riveting device according to claim 1, characterized in that: The pressure head has movable grooves on both sides, which are adapted to the grippers.

6. The temperature sensing rod top pin center sealing riveting device according to claim 1, characterized in that: A slide rail is provided between the mounting plate and the fixing frame.

7. The temperature sensing rod top pin center sealing riveting device according to claim 1, characterized in that: A clamping plate is installed at the gripper, and the inner side of the clamping plate is provided with a groove that matches the outer wall of the riveting fixture.