Novel welding tool
By designing a new type of welding fixture, which uses magnetic adhesive and high-temperature sponge to fix electronic components, and combines a circuit board frame and hard plastic strips to support the circuit board, the problem of electronic components falling off during re-welding is solved, thus improving welding efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU NEW ZHONGYA MICROWAVE TECHNOLOGY CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-19
AI Technical Summary
Existing welding fixtures are prone to causing components to fall off during re-welding of electronic components, resulting in poor welding efficiency.
A novel welding fixture was designed, comprising a backing plate, a guide rod, a positioning mechanism, a contact component, a positioning frame component, and upper and lower positioning components. It utilizes magnetic adhesive and high-temperature sponge to assist in fixing electronic components, and combines a circuit board frame and hard plastic strips to support the circuit board, ensuring that the components do not fall off when the solder melts.
It improves the efficiency of resoldering electronic components, ensures the stability and convenience of the soldering process, and prevents components from falling off when the solder melts.
Smart Images

Figure CN224254419U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding fixtures, and in particular to a novel welding fixture. Background Technology
[0002] After the circuit board has been soldered, some electronic components may become misaligned due to loose insertion. In this case, the circuit board needs to be repaired and soldered. The electronic components are on the front of the circuit board and the pins are on the back of the circuit board. The solder is melted using a hot air gun or soldering iron and then re-soldered.
[0003] A search of existing technologies revealed an "Auxiliary Fixture for Welding Pins of Electronic Components" with publication number "CN214901483U". This device can ensure the convenience of electronic component insertion and guarantee the fixing effect when flipping or transferring. However, when electronic components are re-welded, the device may cause the electronic components to fall off, resulting in poor workpiece welding efficiency.
[0004] Therefore, a new type of welding fixture is proposed to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a new type of welding fixture to solve the above-mentioned problems, thereby improving the problem that electronic components may fall off during re-welding, resulting in poor workpiece welding efficiency.
[0006] This utility model achieves the above-mentioned objective through the following technical solution: a novel welding fixture, comprising: a backing plate, wherein a plurality of guide rods are fixedly connected to the upper end of the backing plate; a positioning mechanism, wherein the positioning mechanism is installed on the surface of the guide rods, and the surface of the positioning mechanism extends to the upper end of the guide rods; wherein the positioning mechanism includes abutting components installed on the surfaces of the plurality of guide rods, a positioning frame assembly is provided at the upper end of the abutting components, the positioning frame assembly is installed at the upper end of the guide rods, a plurality of lower positioning components are provided at the upper end of the positioning frame assembly, the lower ends of the lower positioning components penetrate into the interior of the positioning frame assembly, and a plurality of upper positioning components are slidably connected to the upper end of the positioning frame assembly, the surface of the upper positioning components extending into the interior of the positioning frame assembly.
[0007] Preferably, the contact assembly includes a movable iron plate. The lower end of the movable iron plate has multiple circular holes embedded in it, which are slidably connected to the surfaces of adjacent guide rods. A magnetic adhesive is connected to the upper end of the movable iron plate. Multiple high-temperature sponges are fixedly connected to the surface of the magnetic adhesive near the positioning frame assembly. The lower end of the movable iron plate has a circular hole fixedly connected to the upper end of the contact plate, and the telescopic end of the circular hole is fixedly connected to the lower end of the movable iron plate. Driving the electric push rod upward causes the movable iron plate to move upward as well. The magnetism of the side of the magnetic adhesive near the movable iron plate causes it to adhere to the upper end of the movable iron plate. At this time, the surface of the magnetic adhesive away from the movable iron plate is in contact with the electronic component that needs repair through the multiple high-temperature sponges.
[0008] Preferably, the positioning frame assembly includes a circuit board frame, with a connecting top plate fixedly connected to the upper end of the circuit board frame. A guide hole is formed at the lower end of the circuit board frame, and the guide hole is slidably connected to the surface of a guide rod. A sliding groove is formed at the upper end of the connecting top plate, extending into the interior of the circuit board frame. The weight of the circuit board frame itself causes the guide hole to insert into the upper end of the guide rod, keeping the circuit board frame stable and facilitating repair and soldering operations.
[0009] Preferably, the upper positioning component includes a sliding seat slidably connected to the inner wall of the slide groove. The upper end of the sliding seat extends through to the top of the connecting plate and is fixedly connected to a connecting plate. Multiple friction strips are fixedly connected to the upper end of the connecting plate, and a reinforcing rib is fixedly connected to the lower end of the connecting plate away from the sliding seat. The sliding seat slides within the inner wall of the slide groove, and the contact position can be adjusted according to different circuit boards.
[0010] Preferably, the lower positioning component includes a movable round rod rotatably connected to the upper end of the connecting top plate. The lower end of the movable round rod extends through the inner side of the circuit board frame, and a rigid rubber strip is fixedly connected to the lower end of the movable round rod. The rigid rubber strip can provide support for the side of the circuit board, thereby making the circuit board easier to position.
[0011] Preferably, the lower end of the movable iron plate is provided with an electric push rod, which is slidably connected to the surface of the adjacent guide rod. The circular hole, in conjunction with the surface of the guide rod, creates a smooth longitudinal movement effect.
[0012] Preferably, a second spring is sleeved on the surface of the movable rod, and the second spring is located at the upper end of the connecting top plate.
[0013] The beneficial effects of this utility model are:
[0014] 1. The above-mentioned new welding fixture can provide auxiliary support for electronic components that need to be repaired and welded under the action of the contact components. The device uses magnetic attachment to the surface away from the moving iron plate, and multiple high-temperature sponges are in contact with the electronic components that need to be repaired and welded, so that the electronic components will not fall off after the solder melts, thus improving the work efficiency of electronic component repair and welding.
[0015] 2. By setting up a positioning frame assembly and cooperating with the upper and lower positioning assemblies, the electronic components on the circuit board that need to be soldered and repaired can be positioned. The device slides on the inner wall of the slide groove through a sliding seat, and with the help of hard rubber square strips, it can support the side of the circuit board, making the repair and soldering operation more convenient. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is an exploded view of the positioning mechanism of this utility model;
[0018] Figure 3 This is a schematic diagram of the exploded structure of the contact component of this utility model;
[0019] Figure 4 A schematic diagram of the groove of this utility model is provided.
[0020] In the diagram: 1. Support plate; 2. Guide rod; 3. Positioning mechanism; 31. Positioning frame assembly; 311. Circuit board frame; 312. Connecting top plate; 313. Guide hole; 314. Slide groove; 32. Abutment assembly; 321. Moving iron plate; 322. Circular hole; 323. Electric push rod; 324. Magnetic adhesive; 325. High-temperature sponge; 33. Upper positioning assembly; 331. Sliding seat; 332. Connecting plate; 333. Reinforcing rib; 334. Friction rubber strip; 34. Lower positioning assembly; 341. Moving round rod; 342. Hard rubber square strip; 343. Second spring. Detailed Implementation
[0021] 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.
[0022] In practical implementation: such as Figure 1-4As shown, a novel welding fixture includes: a stop plate 1, with multiple guide rods 2 fixedly connected to the upper end of the stop plate 1; a positioning mechanism 3, which is installed on the surface of the guide rods 2 and extends to the upper end of the guide rods 2; wherein, the positioning mechanism 3 includes abutment components 32 installed on the surface of the multiple guide rods 2, a positioning frame assembly 31 is provided at the upper end of the abutment components 32, the positioning frame assembly 31 is installed at the upper end of the guide rods 2, multiple lower positioning components 34 are provided at the upper end of the positioning frame assembly 31, the lower ends of the lower positioning components 34 penetrate into the interior of the positioning frame assembly 31, and multiple upper positioning components 33 are slidably connected to the upper end of the positioning frame assembly 31, with the surface of the upper positioning components 33 extending into the interior of the positioning frame assembly 31;
[0023] like Figure 1 , Figure 2 and Figure 3 As shown, the abutment component 32 includes a movable iron plate 321. A magnetic adhesive 324 is connected to the upper end of the movable iron plate 321. Multiple high-temperature sponges 325 are fixedly connected to the surface of the magnetic adhesive 324 near the positioning frame component 31. A circular hole 322 is fixedly connected to the upper end of the abutment plate 1 at the lower end of the movable iron plate 321. The telescopic end of the circular hole 322 is fixedly connected to the lower end of the movable iron plate 321. An electric push rod 323 is opened at the lower end of the movable iron plate 321. The electric push rod 323 is slidably connected to the surface of the adjacent guide rod 2.
[0024] The circuit board that needs repair is repaired by using a soldering iron and hot air blower to repair the poorly soldered electronic components. The electric push rod 323 is driven to move upward, causing the moving iron plate 321 to move upward as well. At this time, the magnetic stick 324 is attached to the upper end of the moving iron plate 321 by the magnetism of the side of the magnetic stick 324 that is close to the moving iron plate 321. At this time, the surface of the magnetic stick 324 away from the moving iron plate 321 is pressed against the electronic components that need to be repaired by multiple high-temperature sponges 325.
[0025] The high-temperature sponge 325 deforms and, through its own reset effect, assists electronic components in gradually resetting. With the operator's adjustment, the misaligned electronic components are brought into contact with the circuit board, preventing them from falling off after the solder melts, thus improving the efficiency of electronic component repair and soldering.
[0026] High-temperature sponge 325 is a specially designed sponge material that can maintain convenient performance in high-temperature environments. It is widely used in industrial, electronic, automotive, aerospace and other fields. It can be used for a long time in high-temperature environments. Some products can withstand high temperatures of 200℃ to 300℃ or even higher. It has good elasticity and compression resilience to maintain the softness and elasticity of the sponge and adapt to the deformation requirements in high-temperature environments.
[0027] like Figure 1 , Figure 2 and Figure 4 As shown, the positioning frame assembly 31 includes a circuit board frame 311, a connecting top plate 312 is fixedly connected to the upper end of the circuit board frame 311, a guide hole 313 is opened at the lower end of the circuit board frame 311, the guide hole 313 is slidably connected to the surface of the guide rod 2, and a sliding groove 314 is opened at the upper end of the connecting top plate 312, the sliding groove 314 extends into the interior of the circuit board frame 311.
[0028] The upper positioning component 33 includes a sliding seat 331 slidably connected to the inner wall of the slide groove 314. The upper end of the sliding seat 331 extends through to the top of the connecting top plate 312 and is fixedly connected to a connecting plate 332. Multiple friction rubber strips 334 are fixedly connected to the upper end of the connecting plate 332, and a reinforcing rib 333 is fixedly connected to the lower end of the connecting plate 332 away from the sliding seat 331. The lower positioning component 34 includes a movable round rod 341 rotatably connected to the upper end of the connecting top plate 312. The lower end of the movable round rod 341 extends through to the inner side of the circuit board frame 311. A hard rubber square strip 342 is fixedly connected to the lower end of the movable round rod 341. A second spring 343 is sleeved on the surface of the movable round rod 341 and is located at the upper end of the connecting top plate 312.
[0029] The device uses the weight of the circuit board frame 311 itself to insert the guide hole 313 into the upper end of the guide rod 2, keeping the circuit board frame 311 stable and facilitating repair and soldering operations. At the same time, the sliding seat 331 slides on the inner wall of the slide groove 314, allowing for adjustment of the contact position according to different circuit boards. In addition, the hard plastic square strip 342 can support the side of the circuit board, making it relatively easy to position the circuit board in the gap between the lower end of the reinforcing rib 333 and the upper end of the hard plastic square strip 342, making repair and soldering operations more convenient.
[0030] In use, the electric push rod 323 is driven upward, causing the moving iron plate 321 to rise accordingly. The magnetic sticker 324, near the side of the moving iron plate 321, adheres to the upper end of the moving iron plate 321. The surface of the magnetic sticker 324 away from the moving iron plate 321 is pressed against the electronic components that need repair by multiple high-temperature sponges 325, reducing the risk of electronic components falling off after the solder melts. The guide hole 313 is aligned with the upper end of the guide rod 2 to keep the circuit board frame 311 stable. The sliding seat 331 slides on the inner wall of the slide groove 314, and together with the hard plastic square strip 342, it supports the side of the circuit board. The circuit board is conveniently positioned in the gap between the lower end of the reinforcing rib 333 and the upper end of the hard plastic square strip 342, making the repair and soldering operation more convenient.
[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A novel welding fixture, characterized in that, include: Abutment (1), the upper end of which is fixedly connected with multiple guide rods (2); Positioning mechanism (3), the positioning mechanism (3) is mounted on the surface of guide rod (2), the surface of the positioning mechanism (3) extends to the upper end of guide rod (2); The positioning mechanism (3) includes abutting components (32) installed on the surfaces of multiple guide rods (2). A positioning frame assembly (31) is provided at the upper end of the abutting component (32). The positioning frame assembly (31) is installed at the upper end of the guide rod (2). Multiple lower positioning components (34) are provided at the upper end of the positioning frame assembly (31). The lower end of the lower positioning component (34) extends into the interior of the positioning frame assembly (31). Multiple upper positioning components (33) are slidably connected to the upper end of the positioning frame assembly (31). The surface of the upper positioning component (33) extends into the interior of the positioning frame assembly (31).
2. The novel welding fixture according to claim 1, characterized in that: The abutment component (32) includes a movable iron plate (321), the upper end of which is connected to a magnetic adhesive (324), and the magnetic adhesive (324) is fixedly connected to a plurality of high-temperature sponges (325) on the surface of the positioning frame component (31). The lower end of the movable iron plate (321) is provided with a circular hole (322) fixedly connected to the upper end of the abutment plate (1), and the telescopic end of the circular hole (322) is fixedly connected to the lower end of the movable iron plate (321).
3. The novel welding fixture according to claim 1, characterized in that: The positioning frame assembly (31) includes a circuit board frame (311), with a connecting top plate (312) fixedly connected to the upper end of the circuit board frame (311). A guide hole (313) is provided at the lower end of the circuit board frame (311), and the guide hole (313) is slidably connected to the surface of the guide rod (2). A sliding groove (314) is provided at the upper end of the connecting top plate (312), and the sliding groove (314) extends into the interior of the circuit board frame (311).
4. The novel welding fixture according to claim 3, characterized in that: The upper positioning component (33) includes a sliding seat (331) slidably connected to the inner wall of the slide groove (314). The upper end of the sliding seat (331) extends through to the top of the connecting top plate (312) and is fixedly connected to a connecting plate (332). The upper end of the connecting plate (332) is fixedly connected to a plurality of friction rubber strips (334), and the lower end of the connecting plate (332) away from the sliding seat (331) is fixedly connected to a reinforcing rib (333).
5. The novel welding fixture according to claim 3, characterized in that: The lower positioning component (34) includes a movable round rod (341) rotatably connected to the upper end of the connecting top plate (312). The lower end of the movable round rod (341) extends through the inner side of the circuit board frame (311), and a hard plastic square strip (342) is fixedly connected to the lower end of the movable round rod (341).
6. The novel welding fixture according to claim 2, characterized in that: The lower end of the movable iron plate (321) is provided with an electric push rod (323), which is slidably connected to the surface of the adjacent guide rod (2).
7. The novel welding fixture according to claim 5, characterized in that: The surface of the movable rod (341) is fitted with a second spring (343), which is located at the upper end of the connecting top plate (312).