Automatic dissolving and pressing device for T-shaped nut of automobile door handle seat
By improving the replacement method and positioning structure of the pressure sizing head, the problem of difficult replacement caused by pressure sizing head wear was solved, achieving efficient and stable T-nut installation and improving the production efficiency of automotive door handle seats.
Patent Information
- Application Number
- CN202520238843.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-14
AI Technical Summary
In existing automatic pressure-sealing devices for T-nuts on car door handles, the pressure-sealing head is prone to wear during use, making replacement difficult and affecting work efficiency.
An automatic pressure-repairing device was designed, comprising a pressure-repairing machine, an electric slide rail, a hydraulic rod, and a novel locking structure. The pressure-repairing head can be quickly replaced through a convenient replacement method, and the door handle seat is accurately positioned and fixed through the electric slide rail and a two-way lead screw.
It improves the replacement efficiency of the pressure head, ensures the continuity and stability of the pressure work, enhances the versatility and flexibility of the equipment, and improves the accuracy and efficiency of the pressure work.
Smart Images

Figure CN223762630U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive door handle seat processing technology, and in particular to an automatic melting and pressing device for automotive door handle seat T-shaped nuts. Background Technology
[0002] The automatic T-nut pressing device is an automated equipment specifically designed for the automotive manufacturing industry. In the production process of car door handle seats, the precise installation of T-nuts is crucial. The T-nuts need to be firmly embedded in specific positions on the door handle seat to ensure the assembly quality and overall performance of subsequent car door components. This automatic pressing device can efficiently and accurately press the T-nuts into the car door handle seat, replacing traditional manual or semi-automatic installation methods. This automatic pressing device can significantly improve the assembly efficiency of car door handle seats and T-nuts, ensuring consistent product quality. It is suitable for door assembly production lines in various automotive manufacturing enterprises.
[0003] The existing product uses an electric slide rail to move the pressure head to a suitable position, and a hydraulic rod to drive the pressure head downward to pressure the nut, so that it is installed on the door handle seat. The pressure head and the hydraulic rod are fixed with screws. The existing technology has the problem that the pressure head is easy to wear during use, so it needs to be replaced regularly. The existing installation method makes disassembly and replacement relatively troublesome, resulting in relatively low work efficiency. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides an automatic pressure-relief device for T-shaped nuts on automotive door handles, which aims to improve the problem of relatively low work efficiency caused by the cumbersome installation and disassembly of the pressure-relief head.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic pressure-dissolving device for T-shaped nuts on automotive door handles, comprising a pressure-dissolving machine, an electric slide rail fixedly connected to one side of the inner wall of the pressure-dissolving machine, a connecting frame slidably connected to the outer wall of the electric slide rail, a hydraulic rod fixedly connected inside the connecting frame, an installation assembly provided at the output end of the hydraulic rod, a conveying assembly provided on the upper surface of the pressure-dissolving machine, the installation assembly comprising a mounting base, one end of the mounting base fixedly connected to the output end of the hydraulic rod, a connecting seat slidably connected to the inner wall of the mounting base, a slot provided inside the mounting base, a steel ball provided inside the connecting seat, a threaded rod threadedly connected inside the connecting seat, a connecting rod fixedly connected to one end of the threaded rod, a pin fixedly connected to one end of the connecting rod, and a pressure-dissolving head fixedly connected to one end of the threaded rod.
[0006] Furthermore, the conveying assembly includes a conveying device, the outer wall of which is fixedly connected to the upper surface of the melting press.
[0007] Furthermore, an electric slide rail two is fixedly connected to the upper surface of the melting and pressing machine, a worktable is slidably connected to the outer wall of the electric slide rail two, a slide groove plate is fixedly connected to the upper surface of the worktable, and a fixing plate is fixedly connected inside.
[0008] Furthermore, a bidirectional lead screw is rotatably connected inside the fixed plate. One end of the bidirectional lead screw is threadedly connected to a clamping block two, and the other end of the bidirectional lead screw is threadedly connected to a clamping block one. The inner wall of the clamping block one is slidably connected to the outer wall of the slide plate.
[0009] Furthermore, the outer wall of the steel ball is slidably connected inside the slot.
[0010] Furthermore, the outer wall of the pin is slidably connected to one side of the outer wall of the steel ball.
[0011] Furthermore, a handwheel is fixedly connected to one end of the bidirectional lead screw.
[0012] Furthermore, the inner wall of the clamping block two is slidably connected to the outer wall of the slide plate.
[0013] This utility model has the following beneficial effects:
[0014] 1. In this utility model, when the pressure head needs to be replaced, the connecting rod is rotated in the opposite direction to stop the pin from squeezing the steel ball. Then, the connecting seat is pulled outward, and the old pressure head and connecting seat can be removed together. Then, the new pressure head and connecting seat are installed. The whole process is simple to operate and does not require complicated tools. This convenient replacement method shortens equipment downtime and improves equipment maintenance efficiency. Rotating the connecting rod drives the threaded rod to rotate, causing the pin to move and squeeze the steel ball, making it more tightly locked into the slot, and firmly locking the connecting seat and the mounting seat. During the pressure treatment process, the pressure head bears a large pressure. This locking structure ensures that the pressure head will not loosen or fall off, ensuring the continuity and stability of the pressure treatment work.
[0015] 2. In this utility model, the worktable can be moved to a suitable position by the electric slide rail 2, which makes it convenient for the melting head to be aligned with the T-nut on the door handle seat. At the same time, the bidirectional screw in the fixed plate cooperates with clamping block 1 and clamping block 2. Turning the handwheel can move clamping block 1 and clamping block 2 on the slide plate to clamp the car door handle seat. This design ensures that the position of the door handle seat is fixed during the melting process, improves the accuracy of melting, and facilitates the positioning and clamping of door handle seats of different sizes, enhancing the versatility and flexibility of the equipment. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the automatic melting and pressing device for the T-shaped nut of the automobile door handle seat proposed in this utility model.
[0017] Figure 2This is a schematic diagram of the connecting seat of the automatic pressure-dissolving device for the T-shaped nut of the car door handle seat proposed in this utility model.
[0018] Figure 3 This is a schematic diagram of the mounting base of the automatic pressure-dissolving device for the T-shaped nut of the car door handle seat proposed in this utility model.
[0019] Figure 4 This is a schematic diagram of the bidirectional lead screw part of the automatic melting and pressing device for the T-shaped nut of the automobile door handle seat proposed in this utility model.
[0020] Legend:
[0021] 1. Compression press; 2. Slot; 3. Electric slide rail one; 4. Connecting frame; 5. Hydraulic rod; 6. Mounting base; 7. Connecting base; 8. Compression head; 9. Threaded rod; 10. Steel ball; 11. Pin; 12. Connecting rod; 13. Conveying device; 14. Electric slide rail two; 15. Workbench; 16. Slide plate; 17. Fixing plate; 18. Clamping block one; 19. Clamping block two; 20. Double-acting screw; 21. Handwheel. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0023] Reference Figure 1 - Figure 3This utility model provides an embodiment of an automatic pressure-relief device for T-shaped nuts on car door handles, including a pressure-relief machine 1. An electric slide rail 3 is fixedly connected to one side of the inner wall of the pressure-relief machine 1. The electric slide rail 3 provides a precise moving track for the connecting frame 4, enabling the pressure-relief head 8 to be adjusted horizontally. The connecting frame 4 is slidably connected to the outer wall of the electric slide rail 3. A hydraulic rod 5 is fixedly connected inside the connecting frame 4. A hydraulic system is connected to the hydraulic rod 5, providing a power source to enable it to output stable pressure. An installation component is provided at the output end of the hydraulic rod 5. A conveying component is provided on the upper surface of the pressure-relief machine 1. The installation component includes a mounting base 6, with one end of the mounting base 6... A connecting seat 7 is slidably connected to the inner wall of the mounting base 6, which is fixedly connected to the output end of the hydraulic rod 5. The connecting seat 7 is a metal block structure, and its outer wall is slidably connected to the inner wall of the mounting base 6. It has an internal cavity to accommodate components such as the steel ball 10, the threaded rod 9, the pin 11, and the connecting rod 12. The mounting base 6 has a slot 2 inside. The connecting seat 7 is aligned with the mounting base 6 and then inserted into the mounting base 6. During the insertion process, the steel ball 10 inside the connecting seat 7 slides into the cavity inside the connecting seat 7 under the pressure of the inner wall of the mounting base 6. The connecting seat 7 contains the steel ball 10. When the connecting seat 7 is inserted to a certain position, the steel ball 10 is spring-loaded inside the connecting seat 7. Under the action of force, it is inserted into the slot 2 inside the mounting base 6, realizing the initial positioning of the connecting base 7 and the mounting base 6. The connecting base 7 is threadedly connected to a threaded rod 9. One end of the threaded rod 9 is fixedly connected to a connecting rod 12, and the other end of the connecting rod 12 is fixedly connected to a pin 11. Rotating the connecting rod 12 causes the threaded rod 9 to rotate. Since the threaded rod 9 is threadedly connected to the connecting base 7, the threaded rod 9 will move axially inside the connecting base 7 during rotation. The pin 11 fixedly connected to one end of the threaded rod 9 moves with the movement of the threaded rod 9. When the pin 11 moves to the position of the steel ball 10, the pin 11 will squeeze the steel ball 10, making it more tightly inserted into the slot 2. In the process, the connecting seat 7 and the mounting seat 6 are firmly locked together to complete the installation of the pressure head 8. One end of the threaded rod 9 is fixedly connected to the pressure head 8. The threaded rod 9 drives the pin 11 to move in the opposite direction, and the pin 11 no longer squeezes the steel ball 10. Then, the operator pulls out the connecting seat 7 to remove the old pressure head 8 together with the connecting seat 7. The new pressure head 8 and the connecting seat 7 are installed according to the above installation steps to complete the replacement of the pressure head 8. The conveying component includes a conveying device 13. The outer wall of the conveying device 13 is fixedly connected to the upper surface of the pressure machine 1. The outer wall of the steel ball 10 is slidably connected to the inside of the slot 2. The outer wall of the pin 11 is slidably connected to one side of the outer wall of the steel ball 10.
[0024] Reference Figure 1 and Figure 4An electric slide rail 14 is fixedly connected to the upper surface of the pressure machine 1. When the electric slide rail 14 is started, the worktable 15 moves to its initial position under the action of the slider of the electric slide rail 14, preparing for the next pressure operation of the car door handle seat and T-nut. The worktable 15 is slidably connected to the outer wall of the electric slide rail 14. A slide plate 16 is fixedly connected to the upper surface of the worktable 15, and a fixed plate 17 is fixedly connected inside. Turning the handwheel 21 drives the double-acting screw 20 to rotate. Since the two ends of the double-acting screw 20 are respectively threaded with clamping block 18 and clamping block 29, and the inner walls of clamping block 18 and clamping block 29 are slidably connected to the outer wall of the slide plate 16, when the double-acting screw 20 rotates, the clamping blocks... Clamp 18 and clamp 219 will move towards or away from each other on the slide plate 16. A double-acting screw 20 is rotatably connected inside the fixed plate 17. One end of the double-acting screw 20 is threaded to clamp 219, and the other end of the double-acting screw 20 is threaded to clamp 18. By turning the handwheel 21, clamp 18 and clamp 219 clamp the car door handle seat tightly and fix it on the workbench 15 to ensure that the door handle seat will not move during the melting and pressing process. Then, the operator places the T-nut on the car door handle seat at the position to be melted and pressed. The inner wall of clamp 18 is slidably connected to the outer wall of the slide plate 16. One end of the double-acting screw 20 is fixedly connected to the handwheel 21, and the inner wall of clamp 21 is slidably connected to the outer wall of the slide plate 16.
[0025] Working principle: First, place the car door handle seat on the slide plate 16 on the workbench 15. The operator turns the handwheel 21, which is fixedly connected to the double-acting screw 20. The double-acting screw 20 rotates within the fixed plate 17. When the double-acting screw 20 rotates, clamping blocks 18 and 29 move towards or away from each other on the slide plate 16. By turning the handwheel 21, clamping blocks 18 and 29 clamp the car door handle seat firmly and fix it on the workbench 15, ensuring that the door handle seat will not move during the melting and pressing process. Then, place the T-nut on the car door handle seat. At the location requiring melting and pressing, activate the electric slide rail 3. A connecting frame 4 is slidably connected to the outer wall of the electric slide rail 3. The connecting frame 4 moves under the drive of the electric slide rail 3, causing the hydraulic rod 5 and the melting head 8 to move. The operator controls the electric slide rail 3 to move the melting head 8 to a suitable position above the T-nut. Then, activate the hydraulic rod 5. The output end of the hydraulic rod 5 pushes the melting head 8 downwards. After the melting head 8 contacts the T-nut, under the pressure of the hydraulic rod 5, it melts and presses the T-nut into the car door handle seat, firmly embedding the T-nut into the door handle. The pressure-dissolving operation is completed at a specific position. When the pressure-dissolving head 8 needs to be installed, the connecting seat 7 is inserted into the mounting seat 6. The steel ball 10 inside the connecting seat 7 slides into the connecting seat 7 under the pressure of the inner wall of the mounting seat 6. When the connecting seat 7 is inserted to a certain position, the steel ball 10 is locked into the slot 2 inside the mounting seat 6 by the action of the spring inside the connecting seat 7, realizing the initial positioning of the connecting seat 7 and the mounting seat 6. Then, the connecting rod 12 is rotated, which drives the threaded rod 9 to rotate. During the rotation, it will move inside the connecting seat 7. When the pin 11 moves... When the steel ball 10 is in position, the pin 11 will squeeze the steel ball 10, making it more tightly inserted into the slot 2, and firmly locking the connecting seat 7 and the mounting seat 6, thus completing the installation of the pressure head 8. When the pressure head 8 is worn and needs to be replaced, rotate the connecting rod 12 in the opposite direction, so that the threaded rod 9 drives the pin 11 to move in the opposite direction. The pin 11 will no longer squeeze the steel ball 10. Then pull out the connecting seat 7, and the old pressure head 8 can be removed together with the connecting seat 7. The new pressure head 8 and the connecting seat 7 can be replaced by following the above installation steps.
[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An automatic dissolving and pressing device for T-nuts of automobile door handle bases, comprising a dissolving and pressing machine (1), characterized in that: The inside wall of the dissolving pressure machine (1) is fixedly connected with an electric sliding rail (3), the outer wall of the electric sliding rail (3) is slidably connected with a connecting frame (4), the inside of the connecting frame (4) is fixedly connected with a hydraulic rod (5), the output end of the hydraulic rod (5) is provided with a mounting assembly, and the upper surface of the dissolving pressure machine (1) is provided with a conveying assembly. The mounting assembly comprises a mounting seat (6), one end of the mounting seat (6) is fixedly connected with the output end of the hydraulic rod (5), the inner wall of the mounting seat (6) is slidably connected with a connecting seat (7), the inside of the mounting seat (6) is provided with a clamping groove (2), the inside of the connecting seat (7) is provided with a steel ball (10), the inside of the connecting seat (7) is threadedly connected with a threaded rod (9), one end of the threaded rod (9) is fixedly connected with a connecting rod (12), one end of the connecting rod (12) is fixedly connected with a bolt (11), and one end of the threaded rod (9) is fixedly connected with a dissolving pressure head (8).
2. The automatic melting and pressing device for T-nuts of automobile door handle bases according to claim 1, characterized in that: The conveying assembly comprises a conveying device (13), and the outer wall of the conveying device (13) is fixedly connected with the upper surface of the dissolving pressure machine (1).
3. The automatic melting and pressing device for T-nuts of automobile door handle bases according to claim 2, characterized in that: The upper surface of the dissolving pressure machine (1) is fixedly connected with an electric sliding rail (14), the outer wall of the electric sliding rail (14) is slidably connected with a workbench (15), the upper surface of the workbench (15) is fixedly connected with a sliding groove plate (16), and the inside is fixedly connected with a fixed plate (17).
4. The automatic melting and pressing device for T-nuts of automobile door handle bases according to claim 3, characterized in that: The inside of the fixed plate (17) is rotatably connected with a bidirectional screw rod (20), one end of the bidirectional screw rod (20) is threadedly connected with a clamping block two (19), the other end of the bidirectional screw rod (20) is threadedly connected with a clamping block one (18), and the inner wall of the clamping block one (18) is slidably connected with the outer wall of the sliding groove plate (16).
5. The automatic melting and pressing device for T-nuts of automobile door handle bases according to claim 1, characterized in that: The outer wall of the steel ball (10) is slidably connected in the inside of the clamping groove (2).
6. The automatic melting and pressing device for T-nuts of automobile door handle bases according to claim 1, characterized in that: The outer wall of the bolt (11) is slidably connected on one side of the outer wall of the steel ball (10).
7. The automatic melting and pressing device for T-nuts of automobile door handle bases according to claim 4, characterized in that: One end of the bidirectional screw rod (20) is fixedly connected with a hand wheel (21).
8. The automatic melting and pressing device for T-nuts of automobile door handle bases according to claim 4, characterized in that: The inner wall of the clamping block two (19) is slidably connected with the outer wall of the sliding groove plate (16).