Circuit board binding post aligning tool for underground explosion-proof device of coal mine
By introducing circuit board receiving grooves and terminal height limiting countersunk grooves into the circuit board terminal alignment fixture, the problem of poor terminal height consistency is solved, achieving an efficient and convenient alignment process and improving the welding accuracy and pass rate of the products.
Patent Information
- Application Number
- CN202520500765.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-21
AI Technical Summary
In the process of aligning the terminals of the circuit boards used in existing underground explosion-proof devices for coal mines, the elevation consistency is poor, resulting in low welding accuracy, long time consumption, and low product qualification rate.
A tooling fixture including an operating table and a terminal alignment mechanism is designed. The terminal alignment mechanism includes a circuit board receiving groove and a terminal elevation limiting countersunk groove to ensure the consistency of the terminal elevation after insertion. Alignment and positioning are achieved through the design of the clearance groove and the limiting groove.
It improves the accuracy and efficiency of terminal alignment, increases the product qualification rate, and simplifies the operation process.
Smart Images
Figure CN223942917U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of circuit board production tooling for explosion-proof devices in coal mines, and provides a convenient, easy-to-operate, and efficient tooling for aligning the terminals of circuit boards for explosion-proof devices in coal mines. Background Technology
[0002] See appendix Figure 1 The existing circuit board for explosion-proof devices in coal mines includes a board body (7) and terminals (8) soldered together with the board body (7). The current production method involves inserting the terminals into the insertion holes (9) on the board body, and then aligning them with experience before soldering them with a soldering gun. This results in poor elevation consistency of the terminals (8) on the finished circuit board, long alignment time, and a low pass rate for the produced circuit boards. Poor elevation consistency of the terminals (8) leads to poor welding accuracy with subsequent gas sensors, resulting in poor functionality of the entire gas sensor. Utility Model Content
[0003] In view of this, the purpose of this utility model is to provide a circuit board terminal alignment tool for underground explosion-proof devices in coal mines that is easy to operate, improves alignment accuracy, improves alignment efficiency, and improves product qualification rate.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] This utility model provides a circuit board terminal alignment fixture for an explosion-proof device in a coal mine, comprising: an operating table, at least one terminal alignment mechanism located on the operating table, the terminal alignment mechanism including a circuit board receiving groove that matches the circuit board, a clearance groove located on the bottom of the circuit board receiving groove, and at least one terminal elevation limiting countersunk groove provided on the bottom of the clearance groove.
[0006] In the above scheme, further: the terminal alignment mechanism is rectangular, and a clearance countersunk groove is provided at the four corners of the terminal alignment mechanism, which is in communication with the circuit board receiving groove.
[0007] The beneficial effects of this utility model are:
[0008] The shape of the circuit board receiving slot effectively positions and fixes the circuit board. The height difference between the bottom of the countersunk hole groove and the bottom of the circuit board receiving slot effectively ensures the consistency of the elevation of each terminal after insertion into the plug hole on the board, and also effectively ensures the elevation accuracy of the same terminal on the upper and lower surfaces of the board. Workers can directly insert the terminal into the plug hole on the board and press down until the terminal stops moving, thus aligning and positioning the terminal on the board. This method is convenient, improves alignment accuracy, increases alignment efficiency, and improves product qualification rate. Attached Figure Description
[0009] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:
[0010] Figure 1 This is a schematic diagram of the circuit board structure described in this utility model;
[0011] Figure 2 This is a schematic diagram of the structure of this utility model;
[0012] Figure 3 This is a structural diagram showing the arrangement of multiple sets of terminal block alignment mechanisms in this utility model;
[0013] Reference numerals: 1. Operating panel; 2. Terminal alignment mechanism; 3. Circuit board receiving groove; 4. Clearance groove; 5. Terminal elevation limit countersunk groove; 6. Clearance countersunk groove; 7. Board body; 8. Terminal; 9. Plug hole. Detailed Implementation
[0014] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.
[0015] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.
[0016] like Figure 2-3As shown, this utility model provides a circuit board terminal alignment fixture for explosion-proof devices in coal mines, including an operating table 1, at least one terminal alignment mechanism 2 located on the operating table 1, the terminal alignment mechanism 2 including a circuit board receiving groove 3 matching the circuit board, a clearance groove 4 located at the bottom of the groove 3, and at least one terminal elevation limiting countersunk groove 5 set at the bottom of the clearance groove 4. In this embodiment, the clearance groove 4 provides good guidance for the worker to insert the terminal 8 and facilitates the processing of the terminal elevation limiting countersunk groove 5. In specific implementation, for subsequent integration, a robot is used to weld the board 7 and the terminal 8 together. Multiple sets of terminal alignment mechanisms 2 are set on the same operating table 1, and these multiple sets of terminal alignment mechanisms 2 are arranged longitudinally and laterally. The operating table 1 is rectangular.
[0017] To facilitate the loading and unloading of the board 7, in the above embodiment, preferably, the terminal alignment mechanism 2 is rectangular, and the four corners of the terminal alignment mechanism 2 are provided with clearance countersunk grooves 6, which are in communication with the circuit board receiving groove 3.
[0018] The loading and unloading process of the above embodiment is as follows: the worker first puts the board body 7 into the circuit board receiving groove 3, then inserts the terminals into the plug hole 9 and the terminal elevation limit countersunk hole groove 5 in sequence, and then performs soldering operation with a soldering gun to form a circuit board. After the soldering is completed, the board body 7 is taken out.
[0019] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A tooling for aligning circuit board terminals for explosion-proof devices in coal mines, characterized in that: It includes an operating table (1), at least one set of terminal alignment mechanism (2) located on the operating table (1), the terminal alignment mechanism (2) includes a circuit board receiving groove (3) that matches the circuit board, a relief groove (4) located on the bottom of the circuit board receiving groove (3), and at least one terminal elevation limiting countersunk groove (5) provided on the bottom of the relief groove (4).
2. The circuit board terminal alignment fixture for an explosion-proof device in a coal mine according to claim 1, characterized in that: The terminal alignment mechanism (2) is rectangular, and a clearance countersunk groove (6) is provided at the four corners of the terminal alignment mechanism (2). The clearance countersunk groove (6) is connected to the circuit board receiving groove (3).