Tin wire detection mechanism
By adopting V-shaped structure and optimized fixation method in the tin wire detection mechanism, the problems of high assembly requirements and poor stability in the prior art are solved, the detection stability and debugging efficiency of welding equipment are improved, and the stability of tin wire conveying is ensured. properties and welding quality.
Patent Information
- Application Number
- CN202421162072.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-05-27
AI Technical Summary
The existing tin wire detection mechanism requires high assembly and poor stability when installed in automatic welding equipment, which is prone to misalignment of optical fiber sensors and shaking of tin wire conduits, resulting in unstable tin wire conveying and increasing the debugging time of welding equipment.
Adopting the guideline of the V-shaped structure and the optimized fiber sensor fixing structure, the detection stability of the fiber sensor is improved through the coordination of the positioning pin and pin hole, and the inner and outer catheters of the tin wire are optimized through the V-shaped guide port and groove structure. Fixing method to ensure stable transportation of tin wire.
It improves the detection stability of the tin wire detection mechanism, reduces the debugging time of the automatic welding equipment, and ensures the stability of tin wire conveying and welding quality.
Smart Images
Figure CN222176259U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a tin wire detection mechanism, belonging to the technical field of detection mechanisms. Background Art
[0002] In the automotive electronics manufacturing industry, automatic soldering machines are often used for PCBA assembly production. The welding stability of automatic soldering machines is particularly important for product production quality and production efficiency. Whether the tin wire can be stably transported is one of the factors affecting the stable welding of automatic soldering machines.
[0003] Nowadays, when manufacturing companies use automatic soldering machine equipment, they usually install a tin wire detection mechanism on the equipment to monitor the stability of tin wire transportation and issue an alarm when abnormal tin wire transportation is detected.
[0004] How to install the existing tin wire detection mechanism on the automatic tin feeding equipment? Figure 1 As shown, the tin wire detection mechanism 21 is inserted into the automatic tin feeding device 22 and fixed by tightening the top screw. The structure of the tin wire detection mechanism 21 is as shown in FIG. Figure 2 and Figure 3 As shown, the tin wire detection mechanism 21 includes a shell 23, a tin wire guide rod 24 is provided on one side of the shell 23, the tin wire guide rod 24 is inserted into the shell 23, the shaft hole clearance is matched with H7 / g6, and the tin wire guide rod 24 is fastened by tightening the top screw; a tin wire outer conduit 7 is provided on the other side of the shell 23, the tin wire outer conduit 7 is inserted into the shell 23, and the tin wire outer conduit 7 is fastened by tightening the top screw; the end of the tin wire outer conduit 7 is connected to a tin wire inner conduit 8, the tin wire inner conduit 8 is inserted into the inside of the tin wire outer conduit 7, the tin wire inner conduit 8 is arranged in the shell 23, and the end of the tin wire outer conduit 7 is connected to the tin wire delivery nozzle of the automatic tin feeding device 22, and an optical fiber sensor 4 is provided above the shell 23, the optical fiber sensor 4 is inserted into the shell 23, the shaft hole clearance is matched with H7 / g6, and the optical fiber sensor 4 is fastened by tightening the top screw
[0005] The existing tin wire detection mechanism has the following problems when used:
[0006] 1. High assembly requirements:
[0007] It is required that the optical fiber sensor illumination hole on the tin wire guide rod 24 needs to be aligned with the optical fiber sensor fixing hole on the housing 23 to ensure normal detection of the optical fiber sensor;
[0008] During assembly, the initial end of the tin wire inner conduit 8 needs to be cut flat, and the vertical surface of the tin wire output hole of the housing 23 needs to be fitted;
[0009] 2. The stability of the testing mechanism is poor:
[0010] If the top screw is loose, it is easy for the optical fiber sensor irradiation hole on the tin wire guide rod 24 to be misaligned with the optical fiber sensor fixing hole on the housing 23, and the detection mechanism will not be able to continue to work normally.
[0011] The inner tin wire conduit 8 shakes in the outer tin wire conduit 7, which increases the friction of the tin wire in the inner tin wire conduit, and the tin wire is easily bent, resulting in abnormal welding of the equipment;
[0012] When the automatic tin feeding device conveys tin wire, the tin wire inner conduit 8 shakes in the tin wire outer conduit 7, and the tin wire is not easy to pass into the tin wire inner conduit 4, so the debugging time is too long. Summary of the invention
[0013] The purpose of the utility model is to overcome the shortcomings of the above-mentioned traditional technology and provide a tin wire detection mechanism, which improves the detection stability of the tin wire detection mechanism and reduces the debugging time of automatic welding equipment.
[0014] The purpose of the utility model is achieved through the following technical measures: a tin wire detection mechanism, including a tin wire detection body, the tin wire detection body is tubular, an optical fiber sensor fixing block is provided on the tin wire detection body, an optical fiber sensor is provided in the optical fiber sensor fixing block, one end of the tin wire detection body is threadedly connected to a guide rod, and the guide rod is connected to a tin wire outer conduit and a tin wire inner conduit.
[0015] As a further improvement of the above technical solution:
[0016] One end of the tin wire detection body is provided with a tin wire inlet, and the other end of the tin wire detection body is provided with an external thread.
[0017] The tin wire detection body is hollow inside, and a first cavity is provided inside the side of the tin wire detection body close to the tin wire entrance. The end of the first cavity has a first V-shaped guide opening, and the angle of the first V-shaped guide opening is 30-60°.
[0018] The first V-shaped guide opening is connected to a second cavity, and a diameter of the second cavity is smaller than a diameter of the first cavity.
[0019] A tin wire detection positioning hole is provided on the tin wire detection body below the optical fiber sensor. The tin wire detection positioning hole passes through the second cavity, and the tin wire detection positioning hole is vertically arranged with the second cavity.
[0020] The guide rod includes a connecting head, the connecting head is connected to a first connecting part, the first connecting part is connected to a second connecting part, the connecting head, the first connecting part and the second connecting part are all cylindrical structures, the diameter of the connecting head is greater than the diameter of the first connecting part, and the diameter of the first connecting part is greater than the diameter of the second connecting part.
[0021] One end of the connector is provided with a groove, and the inner circumference of the groove is provided with an internal thread.
[0022] A third cavity is provided inside the first connecting part and the second connecting part, and a second V-shaped guide opening is provided at the bottom of the groove, the angle of the second V-shaped guide opening is 30-60 degrees, and the second V-shaped guide opening is connected to the third cavity.
[0023] The first connecting part is connected to the tin wire outer conduit, the first connecting part is inserted into the tin wire outer conduit and has an interference fit with the tin wire outer conduit, the tin wire inner conduit is arranged inside the tin wire outer conduit, and the second connecting part is inserted into the tin wire inner conduit and has an interference fit with the tin wire inner conduit.
[0024] The optical fiber sensor fixing block and the tin wire detection body are fixedly connected by a positioning pin. The optical fiber sensor fixing block and the tin wire detection body are respectively provided with pin holes, and the positioning pins and the pin holes are interference fit; the optical fiber sensor fixing block and the optical fiber sensor are fixedly connected by a tightening top screw.
[0025] Due to the adoption of the above technical solution, compared with the prior art, the advantages of the utility model are:
[0026] 1. Utilize the guiding property of the V-shaped structure to optimize the conveying path of the tin wire and eliminate the resistance and obstacles to the passage of the tin wire;
[0027] 2. Optimize the optical fiber sensor fixing structure, and the matching mode of the pin hole of the optical fiber sensor fixing block and the tin wire detection body improves the detection stability of the optical fiber sensor;
[0028] 3. The fixing methods of the inner and outer tin wire guide tubes are optimized, which improves the detection stability of the tin wire detection mechanism and reduces the debugging time of the automatic welding equipment.
[0029] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 It is a structural schematic diagram of a tin wire detection mechanism on an automatic tin feeding device in the background technology;
[0031] Figure 2 It is a structural schematic diagram of a tin wire detection mechanism in the background technology;
[0032] Figure 3 It is a schematic diagram of the structure inside the shell of the tin wire detection mechanism in the background technology;
[0033] Figure 4 This is a structural schematic diagram of a tin wire detection mechanism in an embodiment of the utility model;
[0034] Figure 5 This is a schematic cross-sectional view of a tin wire detection mechanism in an embodiment of the utility model;
[0035] Figure 6 for Figure 5 A partial enlarged view of part A in the middle.
[0036] In the figure, 1-tin wire detection body, 2-optical fiber sensor fixing block, 3-positioning pin, 4-optical fiber sensor, 5-fastening top screw, 6-guide rod, 7-tin wire outer guide tube, 8-tin wire inner guide tube, 9-tin wire inlet, 10-first cavity, 11-first V-shaped guide port, 12-second cavity, 13-light column, 14-tin wire detection positioning hole, 15-connector, 16-first connecting part, 17-second connecting part, 18-groove, 19-third cavity, 20-second V-shaped guide port, 21-tin wire detection mechanism, 22-automatic tin feeding equipment, 23-shell, 24-tin wire guide rod, 25-tin wire. DETAILED DESCRIPTION
[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined. Example
[0040] like Figure 4-6As shown, a tin wire detection mechanism includes a tin wire detection body 1, which is tubular, and is provided with an optical fiber sensor fixing block 2 on the tin wire detection body 1. The keyway clearance between the optical fiber sensor fixing block 2 and the tin wire detection body 1 is matched with H7 / g6, and the optical fiber sensor fixing block 2 and the tin wire detection body 1 are fixedly connected by a positioning pin 3. The optical fiber sensor fixing block 2 and the tin wire detection body 1 are respectively provided with pin holes, and the positioning pin 3 and the pin hole are interference fit H7 / m6; an optical fiber sensor 4 is arranged in the optical fiber sensor fixing block 2, and the optical fiber sensor fixing block 2 and the optical fiber sensor 4 are fixedly connected by tightening the top screw 5, and one end of the tin wire detection body 1 is threadedly connected with a guide rod 6, and the guide rod 6 is connected with a tin wire outer conduit 7 and a tin wire inner conduit 8.
[0041] One end of the tin wire detection body 1 is provided with a tin wire inlet 9, and the other end of the tin wire detection body 1 is provided with an external thread. The interior of the tin wire detection body 1 is hollow, and a first cavity 10 is provided inside the side of the tin wire detection body 1 close to the tin wire inlet 9. The end of the first cavity 10 is provided with a first V-shaped guide opening 11. The angle of the first V-shaped guide opening 11 is 30-60°. The first V-shaped guide opening 11 is connected to a second cavity 12. The diameter of the second cavity 12 is smaller than the diameter of the first cavity 10. A tin wire detection positioning hole 14 that can accommodate a light column 13 passing through is provided on the tin wire detection body 1 below the optical fiber sensor 4. The tin wire detection positioning hole 14 passes through the second cavity 12, and the tin wire detection positioning hole 14 is vertically arranged to the second cavity 12.
[0042] The guide rod 6 includes a connecting head 15, the connecting head 15 is connected to a first connecting part 16, the first connecting part 16 is connected to a second connecting part 17, the connecting head 15, the first connecting part 16 and the second connecting part 17 are all cylindrical structures, the diameter of the connecting head 15 is greater than the diameter of the first connecting part 16, the diameter of the first connecting part 16 is greater than the diameter of the second connecting part 17, one end of the connecting head 15 is provided with a groove 18, the inner circumference of the groove 18 is provided with an internal thread, the tin wire detection body 1 and the connecting head 15 are connected by external threads and internal threads, the first connecting part 16 and the second connecting part 17 are provided with a third cavity 19, the bottom of the groove 18 has a second V-shaped guide opening 20, the angle of the second V-shaped guide opening 20 is 30-60°, and the second V-shaped guide opening 20 is connected to the third cavity 19.
[0043] The first connection part 16 is connected to the tin wire outer conduit 7, the first connection part 16 is inserted into the tin wire outer conduit 7 and has an interference fit H7 / m6 with the tin wire outer conduit 7, the tin wire inner conduit 8 is arranged inside the tin wire outer conduit 7, and the second connection part 17 is inserted into the tin wire inner conduit 8 and has an interference fit H7 / m6 with the tin wire inner conduit 8
[0044] After the tin is broken in the automatic tin feeding equipment, the tin wire 25 passes through the tin wire entrance 9 of the tin wire detection body 1, and passes through the tin wire detection positioning hole 14 under the guidance of the first V-shaped guide port 11. The diameter of the tin wire detection positioning hole 14 is 1.1-1.2 times the diameter of the tin wire. The broken tin wire will repeatedly block the optical fiber detection light column 13 emitted by the optical fiber sensor 4. The optical fiber sensor 4 detects that the light column 13 is frequently and repeatedly blocked, which indicates that the tin wire is being transported stably; then the tin wire passes through the tin wire detection body and enters the guide rod, and continues to pass easily under the guidance of the second V-shaped guide port 20, and then passes into the tin wire inner guide tube 8, which improves the detection stability of the tin wire detection mechanism and reduces the debugging time of the automatic welding equipment.
[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A tin wire detection mechanism, characterized in that: The invention comprises a tin wire detection body (1), which is tubular, and is provided with an optical fiber sensor fixing block (2), wherein the optical fiber sensor fixing block (2) is provided with an optical fiber sensor (4), and one end of the tin wire detection body (1) is threadedly connected to a guide rod (6), and the guide rod (6) is connected to a tin wire outer conduit (7) and a tin wire inner conduit (8).
2. A tin wire detection mechanism according to claim 1, characterized in that: One end of the tin wire detection body (1) is provided with a tin wire inlet (9), and the other end of the tin wire detection body (1) is provided with an external thread.
3. A tin wire detection mechanism according to claim 2, characterized in that: The tin wire detection body (1) is hollow inside, and a first cavity (10) is provided inside the tin wire detection body (1) on one side close to the tin wire inlet (9). The end of the first cavity (10) has a first V-shaped guide opening (11), and the angle of the first V-shaped guide opening (11) is 30-60°.
4. A tin wire detection mechanism according to claim 3, characterized in that: The first V-shaped guide opening (11) is connected to a second cavity (12), and the diameter of the second cavity (12) is smaller than the diameter of the first cavity (10).
5. A tin wire detection mechanism according to claim 4, characterized in that: A tin wire detection positioning hole (14) is provided on the tin wire detection body (1) below the optical fiber sensor (4); the tin wire detection positioning hole (14) passes through the second cavity (12); and the tin wire detection positioning hole (14) is arranged vertically to the second cavity (12).
6. A tin wire detection mechanism according to claim 1, characterized in that: The guide rod (6) comprises a connecting head (15), the connecting head (15) is connected to a first connecting portion (16), the first connecting portion (16) is connected to a second connecting portion (17), the connecting head (15), the first connecting portion (16) and the second connecting portion (17) are all cylindrical structures, the diameter of the connecting head (15) is greater than the diameter of the first connecting portion (16), and the diameter of the first connecting portion (16) is greater than the diameter of the second connecting portion (17).
7. A tin wire detection mechanism according to claim 6, characterized in that: One end of the connector (15) is provided with a groove (18), and the inner circumference of the groove (18) is provided with an internal thread.
8. A tin wire detection mechanism according to claim 6, characterized in that: A third cavity (19) is provided inside the first connecting portion (16) and the second connecting portion (17), and the bottom of the groove (18) has a second V-shaped guide opening (20), the angle of the second V-shaped guide opening (20) is 30-60 degrees, and the second V-shaped guide opening (20) is connected to the third cavity (19).
9. A tin wire detection mechanism according to claim 6, characterized in that: The first connecting portion (16) is connected to the tin wire outer conduit (7), the first connecting portion (16) is inserted into the tin wire outer conduit (7) and is interference-fitted with the tin wire outer conduit (7), the tin wire inner conduit (8) is arranged inside the tin wire outer conduit (7), and the second connecting portion (17) is inserted into the tin wire inner conduit (8) and is interference-fitted with the tin wire inner conduit (8).
10. The tin wire detection mechanism according to claim 1, characterized in that: The optical fiber sensor fixing block (2) and the tin wire detection body (1) are fixedly connected via a positioning pin (3); pin holes are respectively provided on the optical fiber sensor fixing block (2) and the tin wire detection body (1); the positioning pin (3) and the pin hole are interference fit; the optical fiber sensor fixing block (2) and the optical fiber sensor (4) are fixedly connected via a tightening top screw (5).