Main station frame welding tool

Abstract

The utility model discloses a main station frame welding tool which comprises a tool bottom plate and is characterized in that a first supporting block, a second supporting block and a third supporting block are arranged on the tool bottom plate; a lower arc-shaped groove and an upper flat groove are formed in the front side of the first supporting block, and a first puller bolt capable of being screwed into the upper flat groove is arranged at the top end of the first supporting block; an inclined groove is formed in the front side of the second supporting block, and a second puller bolt capable of being screwed into the inclined groove is arranged at the top end of the second supporting block; a positioning pin is arranged on the front side of the third supporting block; a third threaded hole is formed in the center of the positioning pin; a compression bolt is further included, and a screw rod part of the compression bolt is connected with the third threaded hole in a matched mode. Different from an existing tool design, the welding tool can be used for welding a main station frame and can meet the requirement that welding gun interference is avoided when three welding positions are welded in the circumferential direction; and meanwhile, the fixture has the advantages of simplicity in clamping, accuracy in positioning, firmness, stability, convenience in dismounting and the like.

Description

Technical Field

[0001] The utility model relates to a main stand frame welding tool. Background Art

[0002] See also Figure 1-2 , which is an existing main stand frame (belonging to motorcycle accessories), which is welded by a bent tube N-1, a reinforced straight tube N-2 and a connector N-3. The connector N-3 is provided with a connecting hole; the connecting hole has a circular hole portion N-31 and an anti-rotation groove N-32; and the two ends of the reinforced straight tube N-2 are welded to the inner side of the bent section N-11 of the bent tube N-1, and the connector N-3 is welded to the top of the long oblique section N-12 of the bent tube N-1, so welding is required at three locations.

[0003] In order to ensure the high strength requirement of the main frame, it is required to weld circumferentially at the three welding points (i.e. full welding). The original tooling is to clamp the main frame in a flat state before welding, and after welding the first half of the circle, clamp it in another direction and weld the other half of the circle (because the welding gun cannot operate under the main frame, there is an interference problem). Therefore, it is necessary to clamp twice, unload twice, and weld twice, which leads to low work efficiency and high production cost. Utility Model Content

[0004] The utility model provides a main stand welding tool to solve the problem in the prior art that three welding positions cannot be clamped at one time and circumferentially welded by a welding gun.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is: a main stand frame welding tool, including a tool base plate, characterized in that: a first support block, a second support block and a third support block are arranged on the tool base plate; a lower arc groove and an upper flat groove are arranged on the front side of the first support block, and a first tightening bolt that can be screwed into the upper flat groove is arranged on the top of the first support block; an inclined groove is arranged on the front side of the second support block, and a second tightening bolt that can be screwed into the inclined groove is arranged on the top of the second support block; a positioning pin is arranged on the front side of the third support block; a third threaded hole is arranged at the center of the positioning pin; and a clamping bolt is also included, and the screw portion of the clamping bolt is matched and connected with the third threaded hole.

[0006] Preferably, the positioning pin includes a cylindrical portion and an anti-rotation portion.

[0007] Preferably, a U-shaped groove is provided on the tooling bottom plate.

[0008] Preferably, the first supporting block is made of stainless steel.

[0009] Preferably, the second support block is made of stainless steel.

[0010] Preferably, the third support block is made of stainless steel.

[0011] Beneficial effects of the utility model:

[0012] First, the utility model adopts a different tooling design from the existing one, which can be used for main frame welding and can meet the requirements of no welding gun interference during circumferential welding of three welding points; at the same time, it has the advantages of simple clamping, accurate positioning, firmness and stability, and convenient unloading;

[0013] Second, the utility model only requires one clamping, one unloading, and one welding operation, thus greatly improving work efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1-2 The utility model is a structural diagram of an existing main station frame (belonging to motorcycle accessories).

[0015] Figure 3 It is a front view of a main stand welding tool in the utility model.

[0016] Figure 4 It is a stereoscopic diagram of a main stand welding tool in the utility model.

[0017] Figure 5 It is a front view of a main stand welding tool in the utility model when clamping.

[0018] Figure 6 It is a three-dimensional diagram of a main stand welding tool in the utility model when clamping. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0020] Example: See Figure 3-6 A main stand frame welding tool comprises a tool base plate 1, on which a first support block 2, a second support block 3, a third support block 4 and a clamping bolt 7 are fixedly arranged.

[0021] The front side of the first support block 2 is provided with a lower arc groove 2-1 and an upper flat groove 2-2. When clamping, the middle of the bent section N-11 of the bent tube N-1 is inserted into the lower arc groove 2-1 for positioning, and the middle of the reinforced straight tube N-2 is inserted into the upper flat groove 2-2 for positioning.

[0022] The first support block 2 is provided with a first tightening bolt 5 which can be screwed into the upper flat groove 2-2 at the top. Specifically, the first support block 2 is provided with a first threaded hole 2-3 which passes into the upper flat groove 2-2 at the top. The screw end of the first tightening bolt 5 is matched and connected with the first threaded hole 2-3.

[0023] When clamping, the screw end of the first tightening bolt 5 is screwed into the upper flat groove 2-2 to tighten the middle of the reinforced straight tube N-2. When loosening, the screw end of the first tightening bolt 5 is screwed out of the upper flat groove 2-2 to loosen the middle of the reinforced straight tube N-2.

[0024] The front side of the second support block 3 is provided with an inclined groove 3-1, and the top of the second support block 3 is provided with a second tightening bolt 6 that can be screwed into the inclined groove 3-1. Specifically, the top of the second support block 3 is provided with a second threaded hole 3-2 that passes into the inclined groove 3-1. The screw end of the second tightening bolt 6 is matched and connected with the second threaded hole 3-2.

[0025] When clamping, the middle of the long oblique section N-12 of the bending tube N-1 is inserted into the oblique groove 3-1 for positioning, and the screw end of the second tightening bolt 6 is screwed into the oblique groove 3-1 to tighten the middle of the long oblique section N-12 of the bending tube N-1. When loosening, the screw end of the second tightening bolt 6 is screwed out of the oblique groove 3-1 to loosen the middle of the long oblique section N-12 of the bending tube N-1.

[0026] A positioning pin 4-1 is provided at the front side of the third support block 4; a third threaded hole 4-2 is provided at the center of the positioning pin 4-1; and the screw portion of the clamping bolt 7 is used for matching and connecting with the third threaded hole 4-1.

[0027] During clamping, the connection hole of the connector N-3 is positioned and matched with the positioning pin 4-1, and then the screw portion of the clamping bolt 7 is matched and connected with the third threaded hole 4-1, and then the clamping bolt 7 is rotated until its head clamps the connector N-3.

[0028] In this embodiment, the positioning pin 4-1 includes a column portion 4-11 and an anti-rotation portion 4-12. When clamping, the column portion 4-11 of the positioning pin 4-1 cooperates with the circular hole portion N-31 of the connecting hole of the connector N-3, and the anti-rotation portion 4-12 of the positioning pin 4-1 cooperates with the anti-rotation groove N-32 of the connecting hole of the connector N-3, so that the connector N-3 will not rotate loose after positioning and pressing, so as to ensure that the direction of the anti-rotation groove N-32 of the connector N-3 can remain accurate and unchanged during welding, thereby improving the welding accuracy.

[0029] Preferably, a U-shaped groove 1-1 is provided on the tooling bottom plate 1. The tooling bottom plate 1 is installed on the welding workbench through the U-shaped groove 1-1.

[0030] Preferably, the first support block 2 is made of stainless steel, which is not easy to rust and thus can prolong the service life.

[0031] Preferably, the second support block 3 is made of stainless steel, which is not easy to rust and thus can prolong the service life.

[0032] Preferably, the third support block 4 is made of stainless steel, which is not easy to rust and thus can prolong the service life.

[0033] The operation method of this embodiment is as follows:

[0034] S10, insert the middle of the bent section N-11 of the bent tube N-1 into the lower arc groove 2-1 for positioning, and insert the middle of the long oblique section N-12 into the oblique groove 3-1 for positioning; insert the middle of the reinforced straight tube N-2 into the upper flat groove 2-2 for positioning; match the connecting hole of the connector N-3 with the positioning pin 4-1 for positioning, at this time, the bent tube N-1, the reinforced straight tube N-2, and the connector N-3 are all constrained and positioned (see Figure 5-6 );

[0035] S20, then rotate the first tightening bolt 5 and screw the end of its screw into the upper flat groove 2-2 to tighten the middle of the reinforced straight tube N-2; rotate the second tightening bolt 6 and screw the end of its screw into the inclined groove 3-1 to tighten the middle of the long inclined section N-12 of the bent tube N-1; insert the screw portion of the clamping bolt 7 into the third threaded hole 4-1, and then rotate the clamping bolt 7 until its head presses the connector N-3. At this time, the reinforced straight tube N-2, the bent tube N-1 and the connector N-3 are all fixed and constrained (see Figure 5-6 );

[0036] S30, start welding with a welding gun, perform circumferential welding (i.e., full welding) on ​​three locations that need to be welded, and obtain a main stand frame;

[0037] S40, first unscrew and remove the clamping bolt 7, then loosen the first jacking bolt 5 and the second jacking bolt 6, and then the main stand frame can be directly removed from the tooling.

[0038] Therefore, this embodiment adopts a different tooling design from the existing one, which can be used for main frame welding, and can meet the requirements of no welding gun interference during circumferential welding of the three welding points (because the three welding points are circumferentially unobstructed and leave enough welding gun to extend into the welding work space); at the same time, it has the advantages of simple clamping, accurate positioning, firmness and stability, and convenient unloading. At the same time, it only requires one clamping, one unloading, and one welding operation, so it can greatly improve work efficiency and reduce production costs.

[0039] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A main stand welding tool, comprising a tool base plate (1), characterized in that: The tooling bottom plate (1) is provided with a first support block (2), a second support block (3) and a third support block (4); The front side of the first support block (2) is provided with a lower arc groove (2-1) and an upper flat groove (2-2); the top end of the first support block (2) is provided with a first tightening bolt (5) which can be screwed into the upper flat groove (2-2); The front side of the second support block (3) is provided with an inclined groove (3-1), and the top end of the second support block (3) is provided with a second tightening bolt (6) which can be screwed into the inclined groove (3-1); A positioning pin (4-1) is provided on the front side of the third support block (4); a third threaded hole (4-2) is provided at the center of the positioning pin (4-1); It also includes a clamping bolt (7), the screw portion of the clamping bolt (7) being cooperatively connected with the third threaded hole (4-2).

2. A main stand welding tool as claimed in claim 1, characterized in that: The positioning pin (4-1) comprises a column portion (4-11) and an anti-rotation portion (4-12).

3. A main stand welding tool as claimed in claim 1, characterized in that: The tooling bottom plate (1) is provided with a U-shaped groove (1-1).

4. A main stand welding tool as claimed in claim 1, characterized in that: The first supporting block (2) is made of stainless steel.

5. A main stand welding tool as claimed in claim 1, characterized in that: The second support block (3) is made of stainless steel.

6. A main stand welding tool as claimed in claim 1, characterized in that: The third support block (4) is made of stainless steel.

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