SMT furnace-passing jig
By designing an SMT reflow fixture suitable for multiple devices, the problem of thin substrates being unable to be directly produced was solved, achieving substrate stability and improved production efficiency.
Patent Information
- Application Number
- CN202423118232.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-17
AI Technical Summary
In existing technologies, the substrate thickness is too small to be directly produced via tracks, and a fixture that can adapt to all production equipment is needed to improve production efficiency.
An SMT reflow fixture has been designed, including a fixture body and a base, equipped with positioning posts and positioning holes for stabilizing the substrate. The material is synthetic stone, which is heat-resistant, low-cost, and heats up slowly.
This improved the stability of the substrate on the fixture, reduced production costs, and increased production efficiency.
Smart Images
Figure CN223626086U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of SMT printing technology, and in particular to an SMT reflow fixture. Background Technology
[0002] SMT stands for Surface Mount Technology, also known as Surface Mount Technology. It is currently the most popular technology and process in the electronics assembly industry. It is a circuit assembly technology that mounts leadless or short-lead surface mount components onto the surface of a printed circuit board or other substrates and assembles them by reflow soldering or dip soldering.
[0003] Currently, due to the extremely thin substrate of related products, the substrate cannot be directly transported via tracks during production. A support fixture is needed to assist in production. However, each production machine has different characteristics, requiring a fixture that can pass through all production machines to improve production efficiency. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model designs an SMT reflow fixture.
[0005] The present invention adopts the following technical solution:
[0006] An SMT reflow fixture includes a fixture body and a fixture base. The fixture base is used to be installed on a production conveyor track. Fixture body positioning posts and substrate positioning posts are respectively installed at the four corners of the fixture body. Fixture body positioning holes and serial holes are respectively provided on the fixture body corresponding to the fixture body positioning posts and substrate positioning posts. The fixture body is provided with a substrate placement groove, and a PCB board mounting slot that mates with the corresponding product is opened in the substrate placement groove.
[0007] Preferably, limit posts are provided on the outer sides of the two adjacent sides of the fixture body on the fixture base.
[0008] Preferably, the fixture body has pick-up ports on the upper and lower sides of the substrate placement slot, respectively, to facilitate the placement and removal of the substrate.
[0009] Preferably, the fixture body has clearance holes at the four corners of the substrate placement groove to facilitate the placement and removal of the substrate.
[0010] Preferably, the fixture base is I-shaped.
[0011] Preferably, the depth of the substrate placement groove is matched with the substrate thickness.
[0012] Preferably, the fixture is made of synthetic stone, which is heat-resistant, minimally affected by temperature changes, and less prone to deformation, resulting in lower cost. The fixture material also has a high specific heat capacity, allowing for slow heating without affecting the heating of the substrate.
[0013] The beneficial effects of this utility model are: This utility model designs an SMT reflow fixture, which is installed on the track of different equipment through the fixture base. The fixture makes it convenient to pick up and place the substrate, and the substrate is stable on the fixture. With the cooperation of the fixture, the production cost is greatly reduced and the production efficiency is improved. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of a fixture base in this utility model;
[0016] Figure 3 This is a schematic diagram of the main body of the fixture in this utility model;
[0017] In the diagram: 1. Fixture body, 2. Fixture base, 3. Substrate placement slot, 4. PCB board mounting slot, 5. Limiting post, 6. Fixture body positioning post, 7. Substrate positioning post, 8. Fixture body positioning hole, 9. Serial hole, 10. Part removal port, 11. Clearance hole. Detailed Implementation
[0018] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:
[0019] Example: Figures 1-3 As shown, an SMT reflow fixture includes a fixture body 1 and a fixture base 2. The fixture base is used to be installed on the production conveyor track. Fixture body positioning posts 6 and substrate positioning posts 7 are respectively installed at the four corners of the fixture body. Fixture body positioning holes 8 and serial holes 9 are respectively provided on the fixture body corresponding to the fixture body positioning posts and substrate positioning posts. The fixture body is provided with a substrate placement groove 3, and a PCB board mounting slot 4 that mates with the corresponding product is opened in the substrate placement groove.
[0020] Limiting posts 5 are respectively provided on the outer sides of the two adjacent sides of the fixture body on the fixture base. Part removal ports 10 are respectively provided on the upper and lower sides of the substrate placement slot on the fixture body.
[0021] The fixture body has clearance holes 11 at the four corners of the substrate placement groove. The fixture base is I-shaped. The depth of the substrate placement groove matches the substrate thickness.
[0022] When using this SMT reflow fixture, first install the fixture body and fixture base using the fixture body positioning holes and fixture body positioning posts. Then, install the substrate using the substrate positioning holes and substrate positioning posts. Next, attach the substrate tightly to the fixture body using high-temperature tape. This facilitates the transfer of the substrate and fixture body on different tracks of the fixture base. The fixture makes it easy to pick up and place the substrate, and the substrate is stable on the fixture. Through the use of this fixture, production costs are greatly reduced and production efficiency is improved.
[0023] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.
Claims
1. An SMT reflow fixture, characterized in that, It includes a fixture body and a fixture base. The fixture base is used to install on the production conveyor track. Fixture body positioning posts and substrate positioning posts are installed at the four corners of the fixture body. Fixture body positioning holes and serial holes are respectively provided on the fixture body corresponding to the fixture body positioning posts and substrate positioning posts. The fixture body is provided with a substrate placement groove, and a PCB board mounting slot that matches the corresponding product is opened in the substrate placement groove.
2. The SMT reflow fixture according to claim 1, characterized in that, Limiting posts are respectively provided on the outer sides of the two adjacent sides of the fixture body on the fixture base.
3. The SMT reflow fixture according to claim 1, characterized in that, The fixture body has a part removal port on the upper and lower sides of the substrate placement slot, respectively.
4. The SMT reflow fixture according to claim 1, characterized in that, The fixture body is provided with clearance holes at the four corners of the substrate placement groove.
5. An SMT reflow fixture according to claim 1, characterized in that, The fixture base is I-shaped.
6. The SMT reflow fixture according to claim 1, characterized in that, The depth of the substrate placement groove is matched with the substrate thickness.