A hot riveting jig which is convenient to use

By designing a hot riveting fixture that combines guide posts, guide plates, and electric telescopic rods, the problems of low efficiency, inaccuracy, and high cost of existing riveting methods are solved, achieving efficient and precise riveting results.

CN224391968UActive Publication Date: 2026-06-23SHANGHAI JIANZHI LIGHTING TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI JIANZHI LIGHTING TECH CO LTD
Filing Date
2025-06-16
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing riveting methods are inefficient, inaccurate, and costly when fixing flexible PCB boards to irregular supports.

Method used

A user-friendly hot riveting fixture was designed. The upper mold of the fixture is slid at a fixed point through guide pillars and guide plates. Combined with the cooperation of electric telescopic rods and positioning blocks with positioning frames, the upper and lower molds are ensured to close accurately. Efficient riveting is achieved through heating tubes and riveting pillars.

Benefits of technology

It improves riveting efficiency and accuracy, reduces reliance on manual operation, minimizes errors, and lowers costs.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224391968U_ABST
    Figure CN224391968U_ABST
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Abstract

The utility model relates to the field of jig, disclose a kind of hot riveting jig convenient to use, including bottom plate, bottom plate upper end surface four corners position place are uniformly fixed with guiding column, four the guiding column upper end is fixed with the top plate and outside slide sleeve joint has guide plate, the guide plate lower end surface is fixed with jig upper die and is set up in one side of the bottom plate upper end surface with the sliding slot, and the sliding slot is internally equipped with adjusting rod by bearing, the adjusting rod outside thread sleeve joint has slider and the slider upper end is fixed with jig lower die and is set up, the jig lower die outer wall one side is fixed with positioning frame, the jig upper die outer wall one side is fixed with mounting block and is fixed with positioning block in mounting block lower end, in the utility model, by positioning lifting to upper die, so that upper and lower die mould positioning is more accurate, also have the function of auxiliary adjustment to lower die simultaneously, use more conveniently.
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Description

Technical Field

[0001] This utility model relates to the field of jigs, and in particular to a heat riveting jig that is easy to use. Background Technology

[0002] Currently, LED modules have a wide range of applications and their product shapes are diverse. Many products have irregular outer surfaces and are often not on the same plane. This makes it impossible to use rigid planar PCB boards to lay out the circuits. Only flexible PCB boards can be used to lay out the circuits. This requires the use of riveting to fix the flexible PCB board to the irregular bracket.

[0003] In the process of developing this application, the inventors discovered the following problems with the prior art: Currently, the existing riveting method involves fixing the PCB to the bracket and riveting them one by one using a rivet gun or by using multiple screws, which is too slow, inaccurate, and costly. Therefore, those skilled in the art have provided a user-friendly hot riveting fixture to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose an easy-to-use hot riveting fixture. By adjusting the upper mold, the positioning of the upper and lower molds is more accurate. It also has the function of auxiliary adjustment of the lower mold, making it more convenient to use.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A user-friendly hot riveting fixture includes a base plate. Guide posts are fixedly installed at the four corners of the upper surface of the base plate. A top plate is fixedly installed on the upper end of the four guide posts, and a guide plate is slidably sleeved on the outer side. An upper mold of the fixture is fixedly installed on the lower end of the guide plate. A groove is opened on one side of the upper surface of the base plate, and an adjusting rod is installed inside the groove through a bearing. A slider is threadedly sleeved on the outer side of the adjusting rod, and a lower mold of the fixture is fixedly installed on the upper end of the slider. A positioning frame is fixedly installed on one side of the outer wall of the lower mold of the fixture. An installation block is fixedly installed on one side of the outer wall of the upper mold of the fixture, and a positioning block is fixedly installed on the lower end of the installation block.

[0007] Furthermore, a base pad is fixedly installed at each of the four corners of the lower end face of the base plate, and all of the base pads are made of rubber.

[0008] Furthermore, the adjusting rod is a threaded rod, and one end of the adjusting rod is provided with a hexagonal hole, and the end with the hexagonal hole is embedded in the bottom plate and is in the same plane as the outer wall of the bottom plate.

[0009] Furthermore, an electric telescopic rod is fixedly installed at the midpoint of the upper surface of the top plate, and the lower output end of the electric telescopic rod is fixedly connected to the upper surface of the guide plate.

[0010] Furthermore, the outer wall of the upper mold of the fixture is provided with multiple pre-embedded holes, the lower end of the upper mold of the fixture is stepped and is fixedly provided with multiple riveting posts, and a heating tube is installed in the pre-embedded hole, wherein the two ends of the heating tube are connected to the positive and negative electrodes, and the middle part of the heating tube is fixedly connected to one end of the riveting post as a whole, and the riveting post passes through the lower surface of the upper mold of the fixture.

[0011] Furthermore, the upper end face of the lower mold of the fixture is designed as a stepped shape that matches the upper mold of the fixture, and each step is provided with a positioning boss.

[0012] Furthermore, a positioning hole is provided on the upper surface of the positioning frame, and the positioning block is inserted into the positioning hole for positioning.

[0013] This utility model has the following beneficial effects:

[0014] 1. The present invention proposes a heat riveting fixture that is easy to use. By mounting the upper mold of the fixture on a guide plate, the guide plate slides up and down along four guide posts, causing the upper mold of the fixture to slide up and down at a fixed point along the direction of the guide posts. At the same time, a positioning block and a positioning frame are added between the upper mold and the lower mold. When the positioning block is just embedded in the positioning frame, it can accurately determine whether the mold closing is accurate.

[0015] 2. The present invention proposes a user-friendly hot riveting fixture. By mounting the lower mold on the slider, the slider can be adjusted laterally under the action of the adjusting rod. When there is a deviation between the upper mold and the lower mold, there is no need to adjust the upper mold. Only the lower mold needs to be adjusted laterally to complete the adjustment of the deviation distance. At the same time, since the adjusting rod at the lower end adopts an embedded hexagonal connector, it avoids external contact and reduces the risk of contact. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the axial side structure of this utility model;

[0017] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0018] Figure 3 This is a schematic diagram of a partial explosion structure of the present invention;

[0019] Figure 4 This is a top view of the base plate of this utility model.

[0020] Legend:

[0021] 1. Electric telescopic rod; 2. Top plate; 3. Guide plate; 4. Upper mold of fixture; 5. Guide column; 6. Base plate; 7. Base pad; 8. Positioning boss; 9. Lower mold of fixture; 10. Riveting column; 11. Embedded hole; 12. Mounting block; 13. Positioning block; 14. Positioning frame; 15. Positioning hole; 16. Adjusting rod; 17. Slide groove; 18. Sliding block; 19. Hexagonal hole. 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. 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.

[0023] Reference Figures 1-4 An embodiment of this utility model provides a user-friendly hot riveting fixture, comprising a base plate 6, with guide posts 5 fixedly installed at the four corners of the upper surface of the base plate 6, a top plate 2 fixedly installed on the upper end of the four guide posts 5 and a guide plate 3 slidably sleeved on the outer side, an upper mold 4 fixedly installed on the lower surface of the guide plate 3, a groove 17 opened on one side of the upper surface of the base plate 6, and an adjusting rod 16 installed inside the groove 17 via a bearing, a slider 18 threadedly sleeved on the outer side of the adjusting rod 16, and a lower mold 9 fixedly installed on the upper end of the slider 18, a positioning frame 14 fixedly installed on one side of the outer wall of the lower mold 9, and an installation block 12 fixedly installed on one side of the outer wall of the upper mold 4, with a positioning block 13 fixedly installed at the lower end of the installation block 12.

[0024] Specifically, by positioning the upper mold 4 of the fixture between the four guide pillars 5 and fixing it to the guide plate 3, the guide plate 3 always slides vertically along the guide pillars 5, thereby ensuring that the position of the upper mold 4 of the fixture remains unchanged; while the upper mold and the lower mold are positioned twice by the positioning block 13 and the positioning frame 14 set on one side, thereby ensuring the accuracy when the upper and lower molds are closed.

[0025] Reference Figure 1 Each of the four corners of the lower end face of the base plate 6 is fixedly equipped with a base pad 7. All the base pads 7 are made of rubber and are used to provide auxiliary support and anti-slip function.

[0026] Reference Figures 3-4 The adjusting rod 16 is a threaded rod. One end of the adjusting rod 16 is provided with a hexagonal hole 19 and the end provided with the hexagonal hole 19 is embedded in the bottom plate 6 and is in the same plane as the outer wall of the bottom plate 6.

[0027] Specifically, by embedding one end of the adjusting rod 16 with the hexagonal hole 19 inside the base plate 6, accidental rotation caused by external contact can be avoided. The design of the hexagonal hole 19 facilitates connection and adjustment during subsequent adjustment and rotation.

[0028] Reference Figures 1-2 An electric telescopic rod 1 is fixedly installed at the midpoint of the upper end surface of the top plate 2, and the lower output end of the electric telescopic rod 1 is fixedly connected to the upper end of the guide plate 3.

[0029] Specifically, the guide plate 3 is pushed down by the electric telescopic rod 1 at the upper end, causing the guide plate 3 to slide up and down along the guide column 5 to complete the directional lifting and closing motion of the upper mold 4 of the upper fixture, without the need for manual mold closing.

[0030] Reference Figures 1-2 The upper mold 4 of the fixture has multiple pre-embedded holes 11 on its outer wall. The lower end of the upper mold 4 of the fixture is stepped and has multiple rivet posts 10 fixedly installed. A heating tube is installed in the pre-embedded hole 11. The two ends of the heating tube are connected to the positive and negative electrodes, and the middle part of the heating tube is fixedly connected to one end of the rivet post 10. The rivet post 10 passes through the lower surface of the upper mold 4 of the fixture. The upper end face of the lower mold 9 of the fixture is designed to be stepped to match the upper mold 4 of the fixture, and each step is provided with a positioning boss 8.

[0031] Specifically, when the electrode is energized, the current passes through the heating tube, causing the heating tube to work. After heat conduction, the bottom end of the riveting post 10 reaches a certain temperature. The riveting point on the LED module to be riveted is heated and squeezed into shape, thus performing the riveting operation. Since there are multiple sets of corresponding heating tubes and riveting posts 10, multiple sets of riveting posts 10 can be heated simultaneously with the help of the heating tube. After the bottom ends of the riveting posts 10 all reach the same temperature, multiple products can be riveted, effectively improving the riveting efficiency. The heating tube and positive and negative electrodes in the pre-embedded hole 11 are not shown in the figure. According to the existing technology CN207825475U, a hot riveting fixture for LED modules, the riveting post 10 used in this application has the same structure and will not be described in detail here.

[0032] Reference Figures 1-2 The upper end face of the positioning frame 14 is provided with a positioning hole 15, and the positioning block 13 is inserted into the positioning hole 15 for positioning. When the positioning block 13 is inserted into the positioning hole 15 from top to bottom, the mold closing state between the upper and lower molds is relatively accurate. If the positioning block 13 cannot be inserted into the positioning hole 15, there is a large deviation between the upper and lower molds. At this time, adjustment is required to ensure the accuracy of mold closing.

[0033] Working principle: During use, the electric telescopic rod 1 at the upper end pushes the guide plate 3 downward to move it down. The guide plate 3 slides down along the guide column 5 and pushes the upper mold 4 of the fixture installed at the lower end to move down. The upper mold 4 of the fixture moves down continuously and approaches the lower mold 9 of the fixture to close the mold. The accuracy of mold closing is judged by whether the positioning block 13 is inserted into the positioning frame 14. Secondly, after the mold is closed, the heated riveting column 10 at the upper end of the upper mold and the positioning boss 8 on the lower mold are used for processing.

[0034] 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. A user-friendly hot riveting fixture, comprising a base plate (6), characterized in that: Guide posts (5) are fixedly installed at the four corners of the upper surface of the base plate (6). A top plate (2) is fixedly installed on the upper end of the four guide posts (5) and a guide plate (3) is slidably sleeved on the outer side. An upper mold (4) of the fixture is fixedly installed on the lower surface of the guide plate (3). A sliding groove (17) is opened on one side of the upper surface of the base plate (6) and an adjusting rod (16) is installed inside the sliding groove (17) through a bearing. A slider (18) is threaded on the outer side of the adjusting rod (16) and a lower mold (9) of the fixture is fixedly installed on the upper end of the slider (18). A positioning frame (14) is fixedly installed on one side of the outer wall of the lower mold (9). An installation block (12) is fixedly installed on one side of the outer wall of the upper mold (4) and a positioning block (13) is fixedly installed on the lower end of the installation block (12).

2. The easy-to-use hot riveting fixture according to claim 1, characterized in that: Each of the four corners of the lower end face of the base plate (6) is fixedly provided with a base pad (7), and all of the base pads (7) are made of rubber.

3. The easy-to-use hot riveting fixture according to claim 1, characterized in that: The adjusting rod (16) is a threaded rod. One end of the adjusting rod (16) is provided with a hexagonal hole (19), and the end with the hexagonal hole (19) is embedded in the bottom plate (6) and is in the same plane as the outer wall of the bottom plate (6).

4. The easy-to-use hot riveting fixture according to claim 1, characterized in that: An electric telescopic rod (1) is fixedly installed at the midpoint of the upper surface of the top plate (2), and the lower output end of the electric telescopic rod (1) is fixedly connected to the upper end of the guide plate (3).

5. The easy-to-use hot riveting fixture according to claim 1, characterized in that: The upper mold (4) of the fixture has multiple pre-embedded holes (11) on its outer wall. The lower end of the upper mold (4) of the fixture is stepped and has multiple rivet posts (10) fixedly installed. A heating tube is installed in the pre-embedded hole (11). The two ends of the heating tube are connected to the positive and negative electrodes, and the middle part of the heating tube is fixedly connected to one end of the rivet post (10) as a whole. The rivet post (10) passes through the lower surface of the upper mold (4) of the fixture.

6. The easy-to-use hot riveting fixture according to claim 1, characterized in that: The upper surface of the lower mold (9) of the fixture is designed to be stepped to match the upper mold (4) of the fixture, and each step is provided with a positioning boss (8).

7. The easy-to-use hot riveting fixture according to claim 1, characterized in that: The upper surface of the positioning frame (14) is provided with a positioning hole (15), and the positioning block (13) is inserted into the positioning hole (15) for positioning.