Hot riveting jig with good safety
By setting an ejector module and a lever structure on the lower mold of the hot riveting fixture, the problem of burns to workers when removing circuit boards is solved, and safety and convenience are improved.
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
- 2026-06-30
AI Technical Summary
When workers manually remove the circuit board from the existing hot riveting fixture after use, they may be burned by the chip, as the temperature has a high impact on the process.
Design a safe hot riveting fixture. By setting an ejection module on the lower mold and using a push block and return spring structure, the circuit board can be automatically ejected after soldering, avoiding direct contact with high-temperature components.
This technology enables automatic ejection of circuit boards after soldering, improving worker safety, avoiding the risk of burns, and facilitating the collection of circuit boards.
Smart Images
Figure CN224426570U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hot riveting fixtures, and in particular to a hot riveting fixture with good safety. Background Technology
[0002] Hot riveting fixtures are specialized devices commonly used in industrial manufacturing, primarily for hot riveting processes. These fixtures help reliably connect thermoplastic materials with other materials. The working principle of hot riveting fixtures is to heat the plastic rivet to above its glass transition temperature to soften it, and then apply pressure to the softened plastic through a specially designed nozzle. After molding, it cools and solidifies, forming a strong connection. The rivet head is the core component of the fixture and directly affects the quality of the connection.
[0003] After use, existing hot riveting fixtures require workers to manually remove the circuit boards from the lower mold of the fixture. However, the hot riveting fixture generates high temperatures during operation, which can affect the circuit boards. Workers may get burned by the chips when manually removing the circuit boards.
[0004] Therefore, those skilled in the art have provided a safe and reliable hot riveting fixture to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a safer hot riveting fixture. After the circuit board is soldered, the worker can rotate the push block to allow the ejection module to eject the circuit board from the lower mold, making it convenient to collect the soldered circuit board.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a safe hot riveting fixture, comprising a fixed plate, with sliding cylinders fixedly arranged at the four corners of the upper surface of the fixed plate, a lower mold fixedly arranged in the middle of the upper surface of the fixed plate, two ejector modules fixedly arranged inside the lower mold, positioning pins slidably arranged inside the four sliding cylinders, connecting plates fixedly arranged on the upper surfaces of the four positioning pins, and an upper mold fixedly arranged in the middle of the lower surface of the connecting plate;
[0007] The ejection module includes a fixed box, a sliding column is fixedly installed in the middle of the bottom surface of the fixed box, a return spring is wound around the outer surface of the sliding column, a top column is slidably installed on the outer surface of the sliding column, and a toggle block is fixedly installed on the front end face of the top column.
[0008] Furthermore, a first mounting plate is fixedly provided on both sides of the fixing plate.
[0009] Furthermore, a second mounting plate is fixedly disposed on the upper end face of the connecting plate.
[0010] Furthermore, a plurality of connecting wires are fixedly provided on one side of the upper mold.
[0011] Furthermore, a plurality of riveting posts are fixedly provided on the lower end face of the upper mold.
[0012] Furthermore, telescopic columns are fixedly installed at both the front and rear of the lower end of the upper mold.
[0013] Furthermore, rubber pads are fixedly installed on the lower end faces of both telescopic columns.
[0014] This utility model has the following beneficial effects:
[0015] 1. This utility model proposes a safe hot riveting fixture. A lower mold is installed in the middle of the upper end face of the fixed plate. The lower mold has two ejection modules inside. When the fixture is in use, a circuit board can be placed on the upper end of the lower mold. When the upper mold and the lower mold are in contact, the riveting post of the upper mold can be used to weld the circuit board. After the circuit board is welded, the operator can rotate the lever to allow the ejection module to eject the circuit board from the lower mold, making it convenient for the operator to collect the welded circuit board. The main structure of the ejection module includes a fixed box. A sliding post is installed in the middle of the inner bottom surface of the fixed box. A return spring is wound around the lower end of the outer surface of the sliding post. A top post is slidably installed on the upper end of the outer surface of the sliding post. When the top post moves downward, the return spring can return the top post to its original position. When the top post moves upward, it can eject the circuit board from the lower mold. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the main axial view of the present invention;
[0017] Figure 2 This is a rear-view axle-side schematic diagram of the present invention;
[0018] Figure 3 This is a side-view axonometric schematic diagram of the present invention;
[0019] Figure 4 This is a front sectional view of the ejection module structure of this utility model.
[0020] Legend:
[0021] 1. Fixed plate; 2. First mounting plate; 3. Sliding cylinder; 4. Connecting plate; 5. Positioning post; 6. Ejection module; 7. Upper mold; 8. Connecting wire; 9. Lower mold; 10. Second mounting plate; 11. Riveting post; 12. Telescopic post; 13. Rubber pad; 601. Fixed box; 602. Sliding post; 603. Return spring; 604. Top post; 605. Pulling block. 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 1-3 This utility model provides an embodiment of a safe hot riveting fixture, comprising a fixed plate 1, with sliding cylinders 3 fixedly installed at the four corners of the upper end face of the fixed plate 1, a lower mold 9 fixedly installed in the middle of the upper end face of the fixed plate 1, two ejector modules 6 fixedly installed inside the lower mold 9, positioning pins 5 slidably installed inside the four sliding cylinders 3, connecting plates 4 fixedly installed on the upper end face of the four positioning pins 5, an upper mold 7 fixedly installed in the middle of the lower end face of the connecting plate 4, first mounting plates 2 fixedly installed on both sides of the fixed plate 1, a second mounting plate 10 fixedly installed on the upper end face of the connecting plate 4, multiple connecting wires 8 fixedly installed on one side of the upper mold 7, multiple riveting pins 11 fixedly installed on the lower end face of the upper mold 7, telescopic pins 12 fixedly installed on both the front and rear sides of the lower end face of the upper mold 7, and rubber pads 13 fixedly installed on the lower end faces of the two telescopic pins 12.
[0024] Specifically, the main structure of the mold includes a fixed plate 1, with first mounting plates 2 installed on both sides of the fixed plate 1. During use, the first mounting plates 2 can be bolted to the upper end of the movable structure. Sliding cylinders 3 are fixedly installed at the four corners of the upper surface of the fixed plate 1. Positioning pins 5 are slidably installed inside the sliding cylinders 3. The upper surfaces of the positioning pins 5 are fixed to the connecting plate 4, allowing the connecting plate 4 to move on the upper surface of the fixed plate 1 via the positioning pins 5 and the sliding cylinders 3. A lower mold 9 is installed in the middle of the upper surface of the fixed plate 1, and an upper mold 7 is installed on the lower surface of the connecting plate 4. When the fixed plate 1 and the connecting plate 4 move, the upper mold 7 and the lower mold 9 can come into contact. Multiple riveting pins 11 are installed on the lower surface of the upper mold 7, and multiple... A telescopic column 12 has a rubber pad 13 installed on its lower end. When the fixture is in use, a circuit board can be placed on the upper end of the lower mold 9. When the upper mold 7 and the lower mold 9 are in contact, the riveting column 11 of the upper mold 7 can be used to weld the circuit board. When the upper mold 7 moves downward, the rubber pad 13 at the lower end of the telescopic column 12 can press the circuit board first, so that the circuit board can be kept stable on the upper end of the lower mold 9. Multiple connecting wires 8 are installed on one side of the upper mold 7. When in use, the connecting wires 8 can be connected to the power module to allow the upper mold 7 to be used normally. After the circuit board is welded, the operator can rotate the lever 605 to allow the ejector module 6 to eject the circuit board from the lower mold 9, making it convenient to collect the welded circuit board.
[0025] Reference Figure 4 The ejector module 6 includes a fixed box 601, a sliding column 602 is fixedly installed in the middle of the bottom surface of the fixed box 601, a return spring 603 is wound around the outer surface of the sliding column 602, a top column 604 is slidably installed on the outer surface of the sliding column 602, and a toggle block 605 is fixedly installed on the front end face of the top column 604.
[0026] Specifically, when in use, the ejector module 6 can eject the circuit board from the upper end of the lower mold 9. The main structure of the ejector module 6 includes a fixing box 601, which can protect the internal structure. A sliding post 602 is installed in the middle of the inner bottom surface of the fixing box 601. A return spring 603 is wound around the lower end of the outer surface of the sliding post 602. A top post 604 is slidably installed on the upper end of the outer surface of the sliding post 602. When the top post 604 moves downward, the return spring 603 can return the top post 604 to its original position. A lever 605 is installed on the front end face of the top post 604. When in use, the ejector module 6 can use the lever 605 to move the top post 604 downward. After the top post 604 moves downward, the lever 605 can be rotated so that the lever 605 can be locked into the lower end of the fixing box 601.
[0027] Working principle: Sliding cylinders 3 are fixedly installed at the four corners of the upper end face of the fixed plate 1. Positioning pins 5 are slidably installed inside the sliding cylinders 3. The upper end face of the positioning pins 5 is fixed to the connecting plate 4, allowing the connecting plate 4 to move on the upper end face of the fixed plate 1 through the positioning pins 5 and the sliding cylinders 3. A lower mold 9 is installed in the middle of the upper end face of the fixed plate 1, and an upper mold 7 is installed on the lower end face of the connecting plate 4. When the fixed plate 1 and the connecting plate 4 move, the upper mold 7 and the lower mold 9 can come into contact. Multiple riveting pins 11 are installed on the lower end face of the upper mold 7. When the upper mold 7 and the lower mold 9 come into contact, the riveting pins 11 of the upper mold 7 can be used to solder the circuit board.
[0028] Multiple telescopic pillars 12 are installed on the lower end face of the upper mold 7. Rubber pads 13 are installed on the lower end face of the telescopic pillars 12. When the fixture is in use, a circuit board can be placed on the upper end of the lower mold 9. When the upper mold 7 moves downward, the rubber pads 13 at the lower end of the telescopic pillars 12 can press the circuit board first, so that the circuit board can be kept stable on the upper end of the lower mold 9. When the circuit board is stable, the riveting pillars 11 of the upper mold 7 can be used to solder the circuit board. After the circuit board is soldered, the operator can rotate the lever 605 to allow the ejector module 6 to eject the circuit board from the lower mold 9, making it convenient to collect the soldered circuit board.
[0029] 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 hot riveting jig with good safety, comprising a fixed plate (1), characterized in that: Sliding cylinders (3) are fixedly installed at the four corners of the upper end face of the fixed plate (1). A lower mold (9) is fixedly installed in the middle of the upper end face of the fixed plate (1). Two ejector modules (6) are fixedly installed inside the lower mold (9). Positioning pins (5) are slidably installed inside the four sliding cylinders (3). A connecting plate (4) is fixedly installed on the upper end face of the four positioning pins (5). An upper mold (7) is fixedly installed in the middle of the lower end face of the connecting plate (4). The ejection module (6) includes a fixed box (601), a sliding column (602) is fixedly arranged in the middle of the bottom surface of the fixed box (601), a return spring (603) is wound around the outer surface of the sliding column (602), a top column (604) is slidably arranged on the outer surface of the sliding column (602), and a toggle block (605) is fixedly arranged on the front end face of the top column (604).
2. The hot clinching tool of claim 1, wherein: The fixing plate (1) has a first mounting plate (2) fixedly installed on both sides.
3. The safety hot clinch jig according to claim 1, wherein: A second mounting plate (10) is fixedly installed on the upper end face of the connecting plate (4).
4. The safety hot clinch jig of claim 1, wherein: Multiple connecting wires (8) are fixedly installed on one side of the upper mold (7).
5. The safety hot clinch tool of claim 1, wherein: The lower end face of the upper mold (7) is fixedly provided with multiple riveting posts (11).
6. The safety hot clinch tool of claim 1, wherein: Telescopic columns (12) are fixedly installed at the front and rear of the lower end of the upper mold (7).
7. The safety hot clinch tool of claim 6, wherein: Rubber pads (13) are fixedly installed on the lower end face of both telescopic columns (12).