Heater welding positioning tool
By designing a heater welding positioning tool and utilizing positioning holes and positioning mechanisms, the problem of inconsistent terminal positions during brazing was solved, thereby improving welding quality.
Patent Information
- Application Number
- CN202422983966.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-04
AI Technical Summary
In the prior art, during the brazing process of aluminum nitride heater products, the positions of the terminals when manually inserted into the lead holes are inconsistent, causing the brazing material to fluctuate and resulting in a decrease in welding quality.
A heater welding positioning fixture is designed, which includes a brazing fixture, a bracket and a positioning mechanism. The combination of positioning holes and positioning tubes, positioning blocks and positioning springs is used to ensure that the welding terminals remain in a stable state during brazing.
Through the design of the positioning tooling, the welding terminal can accurately enter the heater welding port, improving the welding quality and consistency.
Smart Images

Figure CN223476537U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heater welding equipment, and in particular to a heater welding positioning fixture. Background Technology
[0002] Currently, the brazing process for aluminum nitride heaters involves manually inserting the terminals into the lead holes. The solder melts and solidifies within the holes, fixing the terminals in place. As a crucial component connecting the product to the wiring harness, manual terminal placement results in inconsistent product performance. While manual placement ensures the terminals are positioned correctly and upright in the center of the lead hole, the boiling state of the solder during brazing causes the terminals to shift within the lead hole, preventing them from remaining upright and centered, thus degrading the brazing quality. Utility Model Content
[0003] (1) Technical issues to be resolved
[0004] To address the aforementioned problems in the prior art, this utility model provides a heater welding positioning fixture.
[0005] (2) Technical solution
[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:
[0007] A heater welding positioning fixture includes a brazing fixture, a bracket, and a positioning mechanism;
[0008] The brazing fixture is provided with positioning holes corresponding to the heater;
[0009] The bracket is fixed to the brazing fixture;
[0010] Two sets of positioning mechanisms are provided, symmetrically arranged at the bottom of the bracket. Each positioning mechanism includes a positioning tube, a positioning block is slidably installed inside the positioning tube, and a positioning spring is also installed inside the positioning tube. One end of the positioning spring is connected to the top of the inner wall of the positioning tube, and the other end of the positioning spring is connected to the positioning block.
[0011] Preferably, the heater has a welding port, and two welding terminals are symmetrically arranged in the welding port. The diameter of the welding terminals is adapted to the inner diameter of the positioning tube.
[0012] Preferably, the positioning block has protrusions on both sides facing each other, and the inner wall of the positioning tube has a groove corresponding to the protrusions.
[0013] Preferably, the bracket includes support rods and a support plate. Two support rods are provided and are symmetrically arranged on the brazing fixture. The support plate is fixed to the top of the two support rods, and the positioning mechanism is provided at the bottom of the support plate.
[0014] Preferably, the bracket and positioning mechanism are made of high-temperature resistant metal materials.
[0015] (3) Beneficial effects
[0016] The beneficial effects of this utility model are as follows: by adopting the above technical solution, the welding terminal is first inserted into the positioning tube, and then the positioning hole of the brazing fixture is aligned with the heater. Under the calibration of the positioning hole, the welding terminal accurately enters the welding port on the heater. Under the positioning of the positioning tube and the pressing and fixing of the positioning block, the welding terminal can always maintain a stable state during brazing, thereby improving the welding quality of the heater. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a heater welding positioning fixture;
[0018] Figure 2 This is a schematic diagram showing the usage state of a heater welding positioning fixture.
[0019] [Explanation of Labels in the Attached Image]
[0020] 1. Brazing fixtures;
[0021] 2. Positioning holes;
[0022] 3. Bracket; 31. Support rod; 32. Support plate;
[0023] 4. Positioning mechanism;
[0024] 41. Positioning tube; 42. Positioning spring; 43. Positioning block;
[0025] 5. Welding terminals;
[0026] 6. Heater; 61. Weld joint. Detailed Implementation
[0027] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.
[0028] Please refer to Figures 1 to 2 This utility model provides a welding positioning fixture for a heater 6, including a brazing fixture 1, a bracket 3 and a positioning mechanism 4;
[0029] The brazing fixture 1 is provided with positioning holes 2 corresponding to the heater 6;
[0030] The bracket 3 is fixed on the brazing fixture 1;
[0031] The positioning mechanism 4 is provided in two sets, symmetrically arranged at the bottom of the bracket 3. The positioning mechanism 4 includes a positioning tube 41, a positioning block 43 is slidably installed inside the positioning tube 41, and a positioning spring 42 is also installed inside the positioning tube 41. One end of the positioning spring 42 is connected to the top of the inner wall of the positioning tube 41, and the other end of the positioning spring 42 is connected to the positioning block 43.
[0032] In use, first insert the welding terminal 5 into the positioning tube 41, then align the positioning hole 2 of the brazing fixture 1 with the heater 6. With the alignment of the positioning hole 2, the welding terminal 5 accurately enters the welding port 61 on the heater 6. Under the positioning of the positioning tube 41 and the downward pressing and fixing of the positioning block 43, the welding terminal 5 can always maintain a stable state during brazing, thus improving the welding quality of the heater 6.
[0033] In this embodiment, the heater 6 has a welding port 61, and two welding terminals 5 are symmetrically arranged inside the welding port 61. The diameter of the welding terminals 5 is adapted to the inner diameter of the positioning tube 41.
[0034] In this embodiment, the positioning block 43 has protrusions on both sides, and the inner wall of the positioning tube 41 has a groove corresponding to the protrusions. With the cooperation of the protrusions and the groove, the positioning block 43 can be moved stably, while preventing the positioning block 43 from falling off the positioning tube 41.
[0035] In this embodiment, the bracket 3 includes a support rod 31 and a support plate 32. Two support rods 31 are provided and are symmetrically arranged on the brazing fixture 1. The support plate 32 is fixed to the top of the two support rods 31, and the positioning mechanism 4 is provided at the bottom of the support plate 32.
[0036] In this embodiment, the bracket 3 and the positioning mechanism 4 are made of high-temperature resistant metal materials.
[0037] The working principle of this utility model is as follows:
[0038] First, insert the welding terminal 5 into the positioning tube 41, then align the positioning hole 2 of the brazing fixture 1 with the heater 6. With the calibration of the positioning hole 2, the welding terminal 5 accurately enters the welding port 61 on the heater 6. Under the positioning of the positioning tube 41 and the downward pressing and fixing of the positioning block 43, the welding terminal 5 can always maintain a stable state during brazing, thereby improving the welding quality of the heater 6.
[0039] The circuits, electronic components and modules involved are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by this utility model does not involve improvements to software and methods.
[0040] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.
[0041] 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 heater welding positioning fixture, characterized in that, Includes brazing fixtures, supports, and positioning mechanisms; The brazing fixture is provided with positioning holes corresponding to the heater; The bracket is fixed to the brazing fixture; Two sets of positioning mechanisms are provided, symmetrically arranged at the bottom of the bracket. Each positioning mechanism includes a positioning tube, a positioning block is slidably installed inside the positioning tube, and a positioning spring is also installed inside the positioning tube. One end of the positioning spring is connected to the top of the inner wall of the positioning tube, and the other end of the positioning spring is connected to the positioning block.
2. The heater welding positioning fixture according to claim 1, characterized in that, The heater has a welding port, and two welding terminals are symmetrically arranged inside the welding port. The diameter of the welding terminals is adapted to the inner diameter of the positioning tube.
3. The heater welding positioning fixture according to claim 1, characterized in that, The positioning block has protrusions on both sides facing each other, and the inner wall of the positioning tube has a groove corresponding to the protrusions.
4. The heater welding positioning fixture according to claim 1, characterized in that, The bracket includes support rods and a support plate. Two support rods are provided and are symmetrically arranged on the brazing fixture. The support plate is fixed to the top of the two support rods, and the positioning mechanism is located at the bottom of the support plate.
5. The heater welding positioning fixture according to claim 1, characterized in that, The bracket and positioning mechanism are made of high-temperature resistant metal materials.