Positioning jig with high welding precision

Abstract

The utility model discloses a positioning jig with high welding accuracy, relates to the field of positioning jigs, and aims to solve the problems that in the prior art, when a welding part is welded by multiple sub-parts, the welding quantity is large, the size is seriously out of tolerance and welding deformation is caused, and one hand needs to hold the welding sub-parts for positioning welding during welding, so that the welding efficiency is high. And the actual welding work requirement is difficult to meet. The front ends of the two first supporting pipes are jointly and fixedly connected with a positioning transverse pipe, the two sides of the front end face of the positioning transverse pipe are both connected with positioning connecting pieces, the two sides of the lower end of the middle of the front end face of the tool bottom plate are both fixedly connected with second vertical pipes, and the lower ends of the two second vertical pipes are both provided with third vertical pipes. The front ends of the two second vertical pipes and the front ends of the two third vertical pipes are jointly and fixedly connected with strip-shaped positioning supporting pieces, and the middles of the front end faces of the strip-shaped positioning supporting pieces on the two third vertical pipes are fixedly connected with rectangular limiting connecting pieces.

Description

Technical Field

[0001] The utility model relates to the field of positioning jigs, in particular to a positioning jig with high welding accuracy. Background Technique

[0002] A jig is a large category of tools for carpentry, ironworking, benchwork, machinery, electronic control, and other handicrafts, mainly as a tool to assist in controlling position or movement. Jigs can be divided into three categories: process assembly jigs, project test jigs, and circuit board test jigs.

[0003] Application No. 202122764442.1, the utility model discloses a welding positioning jig, which includes a base, a cover plate covering the base, and a heat insulation member disposed between the base and the cover plate. The base is provided with at least one first through hole, the cover plate is provided with a second through hole corresponding to the first through hole, the first through hole and the second through hole are coaxial, and the cover plate is further provided with a through slot hole, and at least part of the heat insulation member is exposed in the slot hole; a fixing groove is provided on the base, and the heat insulation member is disposed in the fixing groove, and the fixing groove corresponds to the slot hole. With such a setting, not only can the product be accurately positioned, but also the problem of fast heat dissipation of the automatic contact welding jig can be effectively solved, so that the solder joints can be welded into round solder joints under sufficient temperature conditions, improving the welding quality.

[0004] Most of the existing positioning jigs can only fix a single workpiece. When the welded part is welded by multiple sub-parts, due to the large amount of welding, it will cause serious dimensional tolerance and welding deformation. Moreover, when welding, one person needs to hold the welding sub-parts by hand for positioning welding, which is difficult to meet the actual welding work requirements; therefore, there is an urgent need in the market to develop a positioning jig with high welding accuracy to help people solve the existing problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a positioning jig with high welding accuracy to solve the problems mentioned in the above background technique that when the welded part is welded by multiple sub-parts, due to the large amount of welding, it will cause serious dimensional tolerance and welding deformation, and when welding, one person needs to hold the welding sub-parts by hand for positioning welding, which is difficult to meet the actual welding work requirements.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A positioning jig with high welding accuracy, including a tooling base plate. On both sides of the middle part of the upper end of the front end face of the tooling base plate, there are first support tubes fixedly connected. The front ends of the two first support tubes are fixedly connected to a positioning cross tube. On both sides of the front end face of the positioning cross tube, there are positioning connection pieces connected. At the front end of the positioning cross tube, there is a U-shaped sub-component fixedly connected. At the lower end of the U-shaped sub-component, there is a trapezoidal sub-component connected. In the middle of the tooling base plate, there is a vertical tube fixedly connected. At the lower end of the front end face of the tooling base plate, there is a support cross tube fixedly connected. On both sides of the middle lower part of the front end face of the tooling base plate, there are second vertical tubes fixedly connected. At the lower ends of the two second vertical tubes, there are third vertical tubes arranged. The front ends of the two second vertical tubes and the front ends of the two third vertical tubes are all fixedly connected to a strip-shaped positioning support piece. In the middle of the front end face of the strip-shaped positioning support piece on the two third vertical tubes, there is a rectangular limit connection piece fixedly connected. The front ends of the two strip-shaped positioning support pieces are fixedly connected to a box-shaped sub-component. At the upper end of the box-shaped sub-component, there is a folded corner board sub-component fixedly connected. In the middle of the lower part inside the box-shaped sub-component, there is a rectangular positioning groove.

[0007] Preferably, the positioning connection piece and the positioning cross tube are fixedly connected by a plurality of first bolts, and the middle part of the U-shaped sub-component is inserted between the two positioning connection pieces.

[0008] Preferably, a first threaded hole is provided in the middle of the positioning connection piece, and the two sides of the U-shaped sub-component are respectively fixedly connected to the two positioning connection pieces by a first threaded knob passing through the U-shaped sub-component and being threadedly connected to the first threaded hole.

[0009] Preferably, second threaded holes are provided on both sides of the front end face of the strip-shaped positioning support piece, and the box-shaped sub-component and the two strip-shaped positioning support pieces are respectively fixedly connected by a second threaded knob passing through the box-shaped sub-component and being threadedly connected to the second threaded hole.

[0010] Preferably, the rectangular limit connection piece and the strip-shaped positioning support piece are fixedly connected by a second bolt.

[0011] Preferably, the rectangular limit connection piece is inserted into the rectangular positioning groove inside the box-shaped sub-component.

[0012] Preferably, a rectangular limit groove is provided in the middle of the front end face of the U-shaped sub-component, the upper end of the rear end of the trapezoidal sub-component is inserted into the rectangular limit groove, and after the box-shaped sub-component is fixed, the upper end of the folded corner board sub-component is clamped with the lower end of the trapezoidal sub-component.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1. In this utility model, through the provision of positioning connecting pieces and rectangular limiting connecting pieces, positioning connecting pieces are connected to both sides of the front end face of the positioning horizontal pipe. A rectangular limiting connecting piece is fixedly connected to the middle of the front end face of the strip-shaped positioning support pieces on the two third vertical pipes. The middle part of the U-shaped sub-piece is inserted between the two positioning connecting pieces. The U-shaped sub-piece is positioned through the limiting connection between the two positioning connecting pieces and the U-shaped sub-piece. The box-shaped sub-piece is fixed to the two strip-shaped positioning support pieces through the second threaded knob to prevent shaking. The box-shaped sub-piece is fixed to the two strip-shaped positioning support pieces through the second threaded knob to prevent shaking. The angle and position of the box-shaped sub-piece are positioned by sliding the rectangular limiting connecting piece into the rectangular positioning groove, so that the relative position between the box-shaped sub-piece and the U-shaped sub-piece is accurate. The upper end of the rear end of the trapezoidal sub-piece is inserted into the rectangular limiting groove. After the box-shaped sub-piece is fixed, the upper end of the folding angle plate sub-piece on the box-shaped sub-piece is clamped with the lower end of the trapezoidal sub-piece. The upper end of the rear end of the trapezoidal sub-piece is limited by the U-shaped sub-piece and the lower end of the rear end of the trapezoidal sub-piece is clamped by the folding angle plate sub-piece on the box-shaped sub-piece, so that the positioning connection between the various sub-pieces of the entire workpiece is accurate, and high-precision welding can be carried out without personnel supporting the sub-pieces.

[0015] 2. In this utility model, through the provision of the first threaded knob and the second threaded knob, the two sides of the U-shaped sub-piece and the two positioning connecting pieces are fixedly connected by screwing the first threaded knob through the U-shaped sub-piece and the first threaded hole. The box-shaped sub-piece and the two strip-shaped positioning support pieces are fixedly connected by screwing the second threaded knob through the box-shaped sub-piece and the second threaded hole. When the welding of the entire workpiece is completed, the first threaded knob is separated from the positioning connecting piece, and the second threaded knob is separated from the strip-shaped positioning support piece, and then the entire workpiece can be taken out from the tooling bottom plate, and the operation is convenient.

[0016] 3. In this utility model, through the provision of the positioning horizontal pipe and the strip-shaped positioning support pieces, positioning connecting pieces are connected to both sides of the front end face of the positioning horizontal pipe. The two sides of the U-shaped sub-piece and the two positioning connecting pieces are fixedly connected by screwing the first threaded knob through the U-shaped sub-piece and the first threaded hole. The box-shaped sub-piece and the two strip-shaped positioning support pieces are fixedly connected by screwing the second threaded knob through the box-shaped sub-piece and the second threaded hole. The positioning horizontal pipe and the strip-shaped positioning support pieces respectively provide overhead support for the U-shaped sub-piece and the box-shaped sub-piece, solving the problem that the product cannot be placed horizontally due to the product structure. Description of the Drawings

[0017] Figure 1 It is the front view of a positioning jig with high welding accuracy of the present utility model;

[0018] Figure 2 It is the front view of the present utility model;

[0019] Figure 3 It is the front view of the tooling bottom plate of the present utility model;

[0020] Figure 4 This is the side view of the present utility model.

[0021] In the figure: 1, tooling base plate; 101, first support tube; 102, vertical tube; 103, second vertical tube; 104, third vertical tube; 105, support cross tube; 2, positioning cross tube; 201, positioning connection piece; 202, first bolt; 203, first threaded hole; 204, first threaded knob; 3, strip-shaped positioning support piece; 301, second threaded hole; 302, rectangular limit connection piece; 303, second bolt; 304, second threaded knob; 4, U-shaped sub-piece; 401, rectangular limit groove; 402, trapezoidal sub-piece; 5, box-shaped sub-piece; 501, folded angle board sub-piece; 502, rectangular positioning groove. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0023] Please refer to Figures 1-4 , an embodiment provided by the present utility model: a positioning jig with high welding accuracy, including a tooling base plate 1. Both sides of the upper middle part of the front end face of the tooling base plate 1 are fixedly connected with first support tubes 101. The front ends of the two first support tubes 101 are jointly fixedly connected with a positioning cross tube 2. Both sides of the front end face of the positioning cross tube 2 are connected with positioning connection pieces 201. The front end of the positioning cross tube 2 is fixedly connected with a U-shaped sub-piece 4. The lower end of the U-shaped sub-piece 4 is connected with a trapezoidal sub-piece 402. The middle part of the tooling base plate 1 is fixedly connected with a vertical tube 102. The lower end of the front end face of the tooling base plate 1 is fixedly connected with a support cross tube 105. Both sides of the lower middle part of the front end face of the tooling base plate 1 are fixedly connected with second vertical tubes 103. Third vertical tubes 104 are arranged at the lower ends of the two second vertical tubes 103. The front ends of the two second vertical tubes 103 and the front ends of the two third vertical tubes 104 are jointly fixedly connected with strip-shaped positioning support pieces 3. The middle part of the front end face of the strip-shaped positioning support pieces 3 on the two third vertical tubes 104 is fixedly connected with rectangular limit connection pieces 302. The front ends of the two strip-shaped positioning support pieces 3 are jointly fixedly connected with a box-shaped sub-piece 5. The upper end of the box-shaped sub-piece 5 is fixedly connected with a folded angle board sub-piece 501. A rectangular positioning groove 502 is arranged at the lower middle part inside the box-shaped sub-piece 5.

[0024] Furthermore, the positioning connection piece 201 and the positioning cross tube 2 are fixedly connected by a plurality of first bolts 202. The middle part of the U-shaped sub-piece 4 is inserted between the two positioning connection pieces 201. The U-shaped sub-piece 4 is positioned by the limit connection between the two positioning connection pieces 201 and the U-shaped sub-piece 4.

[0025] Further, a first threaded hole 203 is provided in the middle of the positioning connecting piece 201. Both sides of the U-shaped sub-piece 4 are respectively fixedly connected to the two positioning connecting pieces 201 through a first threaded knob 204 that passes through the U-shaped sub-piece 4 and is threadedly connected to the first threaded hole 203. After the U-shaped sub-piece 4 is positioned, it is fixed by the first threaded knob 204 to prevent shaking.

[0026] Further, second threaded holes 301 are provided on both sides of the front end face of the strip-shaped positioning support member 3. The box-shaped sub-piece 5 is respectively fixedly connected to the two strip-shaped positioning support members 3 through a second threaded knob 304 that passes through the box-shaped sub-piece 5 and is threadedly connected to the second threaded hole 301. The box-shaped sub-piece 5 is fixed to the two strip-shaped positioning support members 3 by the second threaded knob 304 to prevent shaking.

[0027] Further, the rectangular limit connecting piece 302 is fixedly connected to the strip-shaped positioning support member 3 through a second bolt 303.

[0028] Further, the rectangular limit connecting piece 302 is inserted into the rectangular positioning groove 502 of the box-shaped sub-piece 5. The angle and position of the box-shaped sub-piece 5 are positioned by sliding the rectangular limit connecting piece 302 into the rectangular positioning groove 502, so that the relative position of the box-shaped sub-piece 5 and the U-shaped sub-piece 4 is accurate.

[0029] Further, a rectangular limit groove 401 is provided in the middle of the front end face of the U-shaped sub-piece 4. The upper end of the rear end of the trapezoidal sub-piece 402 is inserted into the rectangular limit groove 401. After the box-shaped sub-piece 5 is fixed, the upper end of the folded angle plate sub-piece 501 on the box-shaped sub-piece 5 is clamped with the lower end of the trapezoidal sub-piece 402. By limiting the upper end of the rear end of the trapezoidal sub-piece 402 by the U-shaped sub-piece 4 and clamping the lower end of the rear end of the trapezoidal sub-piece 402 by the folded angle plate sub-piece 501 on the box-shaped sub-piece 5, the positioning connection between the various sub-pieces of the entire workpiece is accurate, and high-precision welding can be carried out without personnel supporting the sub-pieces.

[0030] Working principle: When in use, first insert the middle part of the U-shaped sub-component 4 between the two positioning connection pieces 201. The U-shaped sub-component 4 is positioned through the limit connection between the two positioning connection pieces 201 and the U-shaped sub-component 4. The box-shaped sub-component 5 is fixed on the two strip-shaped positioning support pieces 3 by the second threaded knob 304 to prevent shaking. The box-shaped sub-component 5 is fixed on the two strip-shaped positioning support pieces 3 by the second threaded knob 304 to prevent shaking. The angle and position of the box-shaped sub-component 5 are positioned by sliding the rectangular limit connection piece 302 into the rectangular positioning groove 502, so that the relative position of the box-shaped sub-component 5 and the U-shaped sub-component 4 is accurate. The upper end of the rear end of the trapezoidal sub-component 402 is inserted into the rectangular limit groove 401. After the box-shaped sub-component 5 is fixed, the upper end of the folded corner plate sub-component 501 on the box-shaped sub-component 5 is clamped with the lower end of the trapezoidal sub-component 402. The upper end of the rear end of the trapezoidal sub-component 402 is limited by the U-shaped sub-component 4 and the lower end of the rear end of the trapezoidal sub-component 402 is clamped by the folded corner plate sub-component 501 on the box-shaped sub-component 5, so that the positioning connection between the various sub-components of the whole workpiece is accurate, and high-precision welding can be carried out without personnel supporting the sub-components.

[0031] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A positioning fixture with high welding accuracy, comprising a tooling base plate (1), characterized in that: The first support tubes (101) are fixedly connected to both sides of the middle of the upper end of the front end surface of the tooling base plate (1); the front ends of the two first support tubes (101) are commonly fixedly connected to a positioning transverse tube (2); both sides of the front end surface of the positioning transverse tube (2) are connected to positioning connecting plates (201); the front end of the positioning transverse tube (2) is fixedly connected to a U-shaped sub-component (4); the lower end of the U-shaped sub-component (4) is connected to a trapezoidal sub-component (402); the middle of the tooling base plate (1) is fixedly connected to a vertical tube (102); the lower end of the front end surface of the tooling base plate (1) is fixedly connected to a supporting transverse tube (105); the middle of the lower end of the front end surface of the tooling base plate (1) is fixedly connected to A second vertical tube (103), a third vertical tube (104) is arranged at the lower end of each of the two second vertical tubes (103), a strip-shaped positioning support (3) is fixedly connected to the front end of each of the two second vertical tubes (103) and the front end of each of the two third vertical tubes (104), a rectangular limiting connecting piece (302) is fixedly connected to the middle of the front end surface of the strip-shaped positioning support (3) on the two third vertical tubes (104), a box-shaped sub-component (5) is fixedly connected to the front end of each of the two strip-shaped positioning support (3), a corner plate sub-component (501) is fixedly connected to the upper end of the box-shaped sub-component (5), and a rectangular positioning groove (502) is arranged at the lower middle end of the box-shaped sub-component (5).

2. A positioning fixture with high welding accuracy according to claim 1, characterized in that: The positioning connecting piece (201) and the positioning transverse tube (2) are fixedly connected via a plurality of first bolts (202), and the middle portion of the U-shaped sub-component (4) is inserted between the two positioning connecting pieces (201).

3. A positioning fixture with high welding accuracy according to claim 1, characterized in that: A first threaded hole (203) is provided in the middle of the positioning connecting piece (201), and the two sides of the U-shaped sub-component (4) are respectively connected to the two positioning connecting pieces (201) by first threaded knobs (204) passing through the U-shaped sub-component (4) and are threadedly connected and fixed to the first threaded holes (203).

4. A positioning fixture with high welding accuracy according to claim 1, characterized in that: Second threaded holes (301) are provided on both sides of the front end surface of the strip-shaped positioning support member (3), and the box-shaped sub-member (5) is respectively threadedly connected and fixed to the two strip-shaped positioning support members (3) via second threaded knobs (304) passing through the box-shaped sub-member (5) and the second threaded holes (301).

5. A positioning fixture with high welding accuracy according to claim 1, characterized in that: The rectangular limiting connecting piece (302) and the strip-shaped positioning support member (3) are fixedly connected via a second bolt (303).

6. A positioning fixture with high welding accuracy according to claim 1, characterized in that: The rectangular limiting connecting piece (302) is inserted into the rectangular positioning groove (502) of the box-shaped sub-component (5).

7. A positioning fixture with high welding accuracy according to claim 1, characterized in that: A rectangular limiting groove (401) is provided in the middle of the front end surface of the U-shaped sub-component (4), the upper end of the rear end of the trapezoidal sub-component (402) is inserted into the rectangular limiting groove (401), and after the box-shaped sub-component (5) is fixed, the upper end of the angled plate sub-component (501) is locked with the lower end of the trapezoidal sub-component (402).

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