Small tool for welding and positioning iron yoke clamping plate stud

Abstract

The utility model provides a small tool for welding and positioning iron yoke clamping plate studs, and belongs to the technical field of transformer assembly. Comprising a body, the body comprises a positioning block, an L-shaped baffle and a fixing block parallel to the positioning block, a through hole is formed in the top of the fixing block, and the inner wall of the through hole is in threaded connection with a positioning bolt; and a clamping assembly is arranged in the positioning block and comprises a groove formed in the outer wall of the positioning block, the inner wall of the groove is rotationally connected with a lead screw, the outer wall of the lead screw is in threaded connection with a moving ring, and clamping teeth are fixedly assembled on the outer wall of the moving ring. The iron yoke clamping plate needing to be welded is placed on the positioning block 11, then the two studs are screwed into the two positioning bolts, at the moment, spot welding is conducted on the two studs firstly, then the positioning bolts are reversed, the positioning bolts are separated from the studs, welding is conducted comprehensively according to requirements, the precision of the welding size is improved, and the production efficiency of the iron yoke clamping plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer assembly, in particular to a small tool used for welding and positioning of iron yoke clamping plate studs. Background Art

[0002] The transformer is a key component in the operation of high-speed railways or EMUs. The assembly or welding accuracy of its components is directly related to the product quality of the transformer, which in turn affects the running quality and safety of the entire vehicle. Therefore, the welding, assembly and other processes of the transformer components and the product quality must be guaranteed by reliable technical support and construction quality. Among the components that make up the transformer, there is a welded part called the iron yoke clamp. The welding dimensional accuracy of its two studs directly affects the installation clearance of the transformer assembly and plays a decisive role in whether the transformer can operate stably.

[0003] In the past, during the production process of the iron yoke clamp, the welding position of its two studs has always been guaranteed by marking and the skill level of the welder. In this way, the position size accuracy after welding will be affected by factors such as the marking method, marking tools, the level of the marking operator, and the operating skills of the welder. As a result, the position of the studs after welding has not been able to meet the assembly positioning requirements, especially the problem of uneven force at the root of the studs, which causes weld cracking after the locomotive has been running bumpy for a long time, posing a great safety hazard to the operation of the locomotive. In order to deal with the above problems and defects, there is an urgent need for a small tooling for the welding positioning of the iron yoke clamp studs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a small-sized tool for the welding and positioning of the studs of the iron yoke clamping plate so as to solve the problem that in the existing iron yoke clamping plate manufacturing process, the welding position of the two studs has always been guaranteed by marking and the skill level of the welder, so that the position size accuracy after welding will be affected by factors such as the marking method, the marking tool, the level of the marking operator, the operating skills of the welder, etc., resulting in the position of the studs after welding not meeting the assembly positioning requirements, especially the problem of uneven force on the root of the studs, which causes the weld to crack after the locomotive has been running bumpy for a long time, posing a great safety hazard to the operation of the locomotive.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A small tool for welding and positioning iron yoke clamp studs, comprising: a main body, the main body comprising a positioning block, an L-shaped baffle and a fixed block parallel to the positioning block, the top of the fixed block is provided with a through hole, the inner wall of the through hole is threadedly connected with a positioning bolt; a clamping assembly is arranged inside the positioning block, the clamping assembly comprises a groove opened on the outer wall of the positioning block, the inner wall of the groove is rotatably connected with a screw rod, the outer wall of the screw rod is threadedly connected with a moving ring, the outer wall of the moving ring is fixedly equipped with a locking tooth, the end of the screw rod away from the locking tooth passes through the positioning block, and the end of the screw rod away from the locking tooth is fixedly equipped with a knob.

[0007] The inner wall of the groove is provided with a limiting groove, the inner wall of the limiting groove is slidably connected to a limiting block, and the side of the limiting block away from the limiting groove is fixedly connected to the latch tooth.

[0008] A fixing groove is provided on one side of the latching tooth close to the positioning block, and a rubber pad is fixedly mounted on the inner wall of the fixing groove.

[0009] The bottom of the positioning block is fixedly equipped with an anti-skid pad, and the bottom of the anti-skid pad is provided with anti-skid grooves.

[0010] The through hole is a threaded hole of model M12, and the position of the through hole is consistent with the corresponding size of the iron yoke clamping plate stud.

[0011] The body is integrally formed and is made of aluminum.

[0012] Compared with the prior art, the utility model has at least the following beneficial effects:

[0013] 1. In the above scheme, the iron yoke splint to be welded is placed on the positioning block, and then the two studs are screwed into the two positioning bolts. At this time, the two studs are spot welded first, and then the positioning bolts are reversed, the positioning bolts are separated from the studs, and comprehensive welding is performed as required, which is conducive to improving the accuracy of the welding size and improving the production efficiency of the iron yoke splint.

[0014] 2. In the above scheme, the screw is driven to rotate by turning the knob, which in turn drives the moving ring to move laterally on the screw, so that the moving ring drives the latch gear to move away from the positioning block. When the iron yoke splint is placed on the positioning block, the knob is reversed, and the moving ring and the latch gear are driven to move toward the positioning block by rotating the screw until the latch gear fixes the iron yoke splint, thereby improving the stability of the iron yoke splint during welding and ensuring its welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of a small tool used for welding and positioning of iron yoke clamping plate studs;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of a small tool used for welding and positioning of iron yoke clamping plate studs from a first-person perspective;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure from the second perspective of a small tooling used for welding and positioning of iron yoke splint studs.

[0019] [Reference Signs]

[0020] 1. Main body; 11. Positioning block; 12. L-shaped baffle; 13. Fixing block; 14. Through hole; 15. Positioning bolt;

[0021] 2. Clamping assembly; 21. Groove; 22. Screw rod; 23. Moving ring; 24. Clamping teeth; 25. Knob; 26. Limiting groove; 27. Limiting block;

[0022] 3. Fixing groove; 4. Rubber pad; 5. Anti-slip pad.

[0023] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0024] The following is a detailed description of a small tool for welding and positioning of iron yoke clamping plate studs provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are listed as the best and preferred embodiments, and other alternative methods can also be used by technicians in some known technical fields; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0025] like Figure 1 , Figure 2 and Figure 3As shown, the embodiment of the utility model provides a small tool for welding and positioning of iron yoke clamping plate studs, comprising: a body 1, the body 1 comprises a positioning block 11, an L-shaped baffle plate 12 for limiting and a fixing block 13 parallel to the positioning block 11, a through hole 14 is opened on the top of the fixing block 13, and a positioning bolt 15 is threadedly connected to the inner wall of the through hole 14; a clamping assembly 2 is arranged inside the positioning block 11, and the clamping assembly 2 comprises a groove 21 opened on the outer wall of the positioning block 11, and the inner wall of the groove 21 is A screw rod 22 is rotatably connected, and a movable ring 23 is threadedly connected to the outer wall of the screw rod 22. A latch tooth 24 is fixedly installed on the outer wall of the movable ring 23. The end of the screw rod 22 away from the latch tooth 24 passes through the positioning block 11, and the end of the screw rod 22 away from the latch tooth 24 is fixedly installed with a knob 25. The through hole 14 is a threaded hole of model M12, and the position of the through hole 14 is consistent with the corresponding size of the iron yoke clamping plate stud. By limiting the through hole 14, it is beneficial to improve the accuracy of the tooling during welding operations.

[0026] like Figure 3 As shown, a limiting groove 26 is provided on the inner wall of the groove 21, and a limiting block 27 is slidably connected to the inner wall of the limiting groove 26. The limiting block 27 is fixedly connected to the latch tooth 24 on the side away from the limiting groove 26. By setting the limiting groove 26 and the limiting block 27, it is helpful to improve the stability of the latch tooth 24 when it moves.

[0027] like Figure 1 and Figure 2 As shown, a fixing groove 3 is provided on one side of the latch tooth 24 close to the positioning block 11, and a rubber pad 4 is fixedly mounted on the inner wall of the fixing groove 3. By setting the fixing groove 3 and the rubber pad 4, when the latch tooth 24 is engaged with the iron yoke splint, the rubber pad 4 contacts the latch tooth 24 to reduce the contact gap and improve the stability of its fixation.

[0028] like Figure 2 and Figure 3 As shown, the bottom of the positioning block 11 is fixedly equipped with an anti-skid pad 5, and the bottom of the anti-skid pad 5 is provided with anti-skid grooves. The provision of the anti-skid pad 5 is helpful to improve the friction between the device and the contact surface, thereby improving the stability during use.

[0029] like Figure 1 and Figure 2 As shown, the main body 1 is integrally formed and is made of aluminum. By limiting the material of the main body 1, it is beneficial to reduce the weight of the main body 1 and make its operation more convenient.

[0030] The technical solution provided by the utility model is that when working, the iron yoke clamping plate to be welded is placed on the positioning block 11, and then the two studs are screwed into the two positioning bolts 15. At this time, the two studs are first spot welded, and then the positioning bolts 15 are reversed, the positioning bolts 15 are separated from the studs, and the welding is performed comprehensively as required;

[0031] By turning the knob 25, the screw rod 22 is driven to rotate, and then the moving ring 23 is driven to move laterally on the screw rod 22, so that the moving ring 23 drives the latching tooth 24 to move away from the positioning block 11. When the iron yoke clamp is placed on the positioning block 11, the knob 25 is reversed, and the screw rod 22 is rotated to drive the moving ring 23 and the latching tooth 24 to move toward the positioning block 11 until the latching tooth 24 fixes the iron yoke clamp, thereby improving the stability of the iron yoke clamp during welding and ensuring its welding accuracy.

[0032] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0033] A person skilled in the art will appreciate that all or part of the steps in the above-mentioned embodiment method can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A small tool for welding and positioning of iron yoke clamping plate studs, characterized in that: include: A body (1), the body (1) comprising a positioning block (11), an L-shaped baffle (12) and a fixing block (13) parallel to the positioning block (11), a through hole (14) being formed at the top of the fixing block (13), and a positioning bolt (15) being threadedly connected to the inner wall of the through hole (14); A clamping assembly (2) is arranged inside the positioning block (11), and the clamping assembly (2) comprises a groove (21) formed on the outer wall of the positioning block (11); a screw rod (22) is rotatably connected to the inner wall of the groove (21); a moving ring (23) is threadedly connected to the outer wall of the screw rod (22); a locking tooth (24) is fixedly mounted on the outer wall of the moving ring (23); an end of the screw rod (22) away from the locking tooth (24) passes through the positioning block (11), and a knob (25) is fixedly mounted on the end of the screw rod (22) away from the locking tooth (24).

2. The small tool for welding and positioning the iron yoke clamping plate stud according to claim 1 is characterized in that: The inner wall of the groove (21) is provided with a limiting groove (26), the inner wall of the limiting groove (26) is slidably connected to a limiting block (27), and the side of the limiting block (27) away from the limiting groove (26) is fixedly connected to the latching tooth (24).

3. The small tool for welding and positioning the iron yoke clamping plate studs according to claim 1 is characterized in that: A fixing groove (3) is formed on one side of the latching tooth (24) close to the positioning block (11), and a rubber pad (4) is fixedly mounted on the inner wall of the fixing groove (3).

4. The small tool for welding and positioning the iron yoke clamping plate studs according to claim 1 is characterized in that: The bottom of the positioning block (11) is fixedly equipped with an anti-skid pad (5), and the bottom of the anti-skid pad (5) is provided with anti-skid grooves.

5. The small tool for welding and positioning the iron yoke clamping plate studs according to claim 1, characterized in that: The through hole (14) is a threaded hole of model M12, and the position of the through hole (14) is consistent with the corresponding size of the iron yoke clamping plate stud.

6. The small tool for welding and positioning the iron yoke clamping plate studs according to claim 1, characterized in that: The main body (1) is integrally formed and is made of aluminum.

Images