A welding positioning jig

Abstract

The utility model relates to the technical field of welding jigs, and specifically to a positioning jig for welding, including a base plate, front and rear side plates, front and rear baffles, an adjustment mechanism and a vernier ruler. Front and rear side plates are arranged on the front and rear sides of the base plate, and front and rear baffles are arranged between the front and rear side plates. An adjustment mechanism is installed through the front and rear side plates and the front and rear baffles, and the adjustment mechanism can adjust the distance between the front and rear baffles; scale marks are respectively arranged on the front and rear side plates, and the scale marks match the vernier ruler; the vernier ruler is slidably connected to the front and rear side plates, wherein an adjustment groove is arranged on the outer side of the front and rear side plates, a slider is arranged in the vernier ruler, the slider matches the adjustment groove, and a roller is arranged between the slider and the adjustment groove. The utility model has a simple structure and is easy to use. During use, by adjusting the distance between the front and rear baffles and the position of the vernier ruler, it is possible to realize the rapid spot welding of railings of any specifications, which plays a positive role in improving welding efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of welding jigs, in particular to a positioning jig for welding. Background Art

[0002] Welding jigs are tools used to assist positioning during the welding process, and they play a positive role in ensuring welding accuracy and improving welding efficiency.

[0003] Welding jigs are widely used in the welding of workpieces. As the shape and specifications of the workpieces change, the welding jigs can also be designed into different shapes and functions, which brings convenience to people's use. In particular, railings are often used due to protection needs in construction projects. Among them, the specifications of railings have various specifications according to actual needs. In the process of manufacturing railings, welding is generally used as a connection method between the workpieces. The product can be obtained by firmly welding the horizontal long rod and the longitudinal short rod. In the actual production process, in order to improve production efficiency, simple positioning jigs are often prepared at the welding site, but the prepared positioning jigs are often only suitable for one specification of railings. When other specifications of products need to be manufactured, it is necessary to prepare positioning jigs separately, which is time-consuming and labor-intensive.

[0004] Therefore, a positioning jig that can adapt to the production of railings of different specifications and models in railing welding production is an existing problem that needs to be solved. Utility Model Content

[0005] The purpose of the utility model is to provide a welding positioning jig in view of the above-mentioned deficiencies in the prior art, so as to achieve the purpose of being able to adapt to the production of railings of different specifications and models during the railing production process.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a positioning jig for welding, comprising a base plate, wherein a front side plate and a rear side plate are respectively arranged on the front and rear sides of the base plate, a front baffle plate and a rear baffle plate are arranged between the front side plate and the rear side plate, and an adjustment mechanism is installed through the front side plate, the rear side plate, the front baffle plate and the rear baffle plate; a guide rod and positive and negative threaded screws are arranged in the adjustment mechanism, the guide rod is respectively connected to the front baffle plate and the rear baffle plate through connecting holes, and the two ends of the guide rod are respectively fixedly connected to the front side plate and the rear side plate; the positive and negative threaded screws are respectively connected to the front baffle plate and the rear baffle plate through threaded holes, the front baffle plate and the rear baffle plate are respectively arranged and installed on both sides of the positive and negative threaded screw thread reversing position, and the two ends of the positive and negative threaded screws are respectively connected to the front side plate and the rear side plate.

[0007] Furthermore, the front baffle and the rear baffle are symmetrically arranged relative to the thread reversal position of the forward and reverse threaded screws.

[0008] Furthermore, one end of the forward and reverse threaded screw extends out of the rear side plate and is connected to the bearing, and the other end of the forward and reverse threaded screw extends out of the front side plate and is connected to the handle.

[0009] Furthermore, the front side plate and the rear side plate are both provided with scale marks, the scale marks on the front side plate and the rear side plate correspond to each other, and a vernier scale is slidably installed on the front side plate and the rear side plate, and the vernier scale cooperates with the scale marks on the front side plate and the rear side plate.

[0010] Furthermore, the vernier scale includes a vernier scale, and lower extensions are arranged on both sides of the vernier scale, the lower extensions are connected to the sliders, and adjustment grooves are arranged on the outer sides of the front side plate and the rear side plate, and the sliders are slidably engaged in the adjustment grooves.

[0011] Furthermore, one end of the adjustment slot is provided with an opening, and a limit bolt can be detachably installed at the opening.

[0012] Furthermore, the sliding block is connected to a roller, and the roller matches the adjusting groove.

[0013] Furthermore, the rollers are installed on the side and bottom of the adjustment groove, and multiple rollers are provided on the side and bottom. The rollers on the side cooperate with the inner side of the adjustment groove, and the rollers on the bottom cooperate with the lower side of the adjustment groove.

[0014] The utility model has the following beneficial effects: simple structure and convenient use. During use, by adjusting the distance between the front and rear baffles and the position of the vernier scale, railings of any specifications can be quickly spot welded, which plays a positive role in improving welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a top view schematic diagram of the overall structure of the utility model;

[0017] Figure 3 This utility model Figure 1 A partial enlarged schematic diagram of part A;

[0018] Figure 4 It is a schematic diagram of the structure of the utility model;

[0019] Figure 5 It is a structural schematic diagram of an existing handrail manufactured by the utility model.

[0020] The names corresponding to the marks in the figure are:

[0021] 1. Bottom plate; 11. Rear side plate; 12. Front side plate; 2. Rear baffle; 3. Front baffle; 4. Adjustment mechanism; 41. Guide rod; 42. Positive and negative threaded screw; 421. Bearing; 422. Handle; 5. Scale mark; 6. Vernier scale; 61. Vernier scale; 62. Lower extension; 63. Slider; 64. Roller; 7. Adjustment slot; 71. Limit bolt; 8. Railing. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0023] Embodiments of the present utility model:

[0024] like Figure 1-5 As shown, in the positioning jig of this embodiment, a base plate 1 is provided, a front side plate 12 and a rear side plate 11 are provided on the front and rear sides of the base plate 1 respectively, a front baffle plate 3 and a rear baffle plate 2 are provided between the front side plate 12 and the rear side plate 11 respectively, an adjustment mechanism 4 is installed through the front side plate 12, the rear side plate 11, the front baffle plate 3 and the rear baffle plate 2, and the distance between the front baffle plate 3 and the rear baffle plate 2 can be adjusted through the adjustment mechanism 4.

[0025] A guide rod 41 is provided in the adjustment mechanism 4, and the guide rod 41 is connected to the front baffle 3 and the rear baffle 2 through connecting holes, and the two ends of the guide rod 41 are fixedly connected to the front side plate 12 and the rear side plate 11 respectively; and a forward and reverse threaded screw 42 is provided in the adjustment mechanism 4, and the forward and reverse threaded screw 42 is connected to the front baffle 3 and the rear baffle 2 through threaded holes, one end of the forward and reverse threaded screw 42 passes through the rear side plate 11 and is connected to the bearing 421, and the other end of the forward and reverse threaded screw 42 passes through the front side plate 12 and is connected to the handle 422; the front baffle 3 and the rear baffle 2 are symmetrically arranged on both sides of the forward and reverse threaded screw 42.

[0026] A vernier scale 6 is slidably installed through the front side plate 12 and the rear side plate 11, wherein a vernier scale 61 is arranged in the vernier scale 6, and lower extensions 62 are respectively arranged at both ends of the vernier scale 61, and the lower extensions 62 are connected to the slider 63, and adjustment grooves 7 are arranged on the front side plate 12 and the rear side plate 11, and the adjustment grooves 7 are slidably connected to the slider 63; rollers 64 are installed on the side and bottom of the slider 63, and a plurality of rollers 64 are arranged, and the rollers 64 cooperate with the adjustment grooves 7.

[0027] Scale marks 5 are provided on the front side plate 12 and the rear side plate 11. The scale marks 5 on both sides correspond to each other and cooperate with the vernier 61. At the same time, a mounting hole is provided at one end of the opening of the adjustment slot 7, and a limit bolt 71 is threadedly connected through the mounting hole.

[0028] The principle of this utility model is:

[0029] When the utility model is in use, the distance between the front baffle plate 3 and the rear baffle plate 2 is adjusted according to the specifications of the required manufactured product. During the process, the distance between the front baffle plate 3 and the rear baffle plate 2 is measured by a tape measure after the adjustment. After the adjustment is completed, for the manufacture of the railing 8 of the same specification, there is no need to adjust the front baffle plate 3 and the rear baffle plate 2.

[0030] After the above-mentioned adjustments are completed, when manufacturing the railing 8, the long transverse rods of the railing 8 are placed on the base plate 1 and pressed against the front baffle 3 and the rear baffle 4 respectively. At the same time, the long transverse rods can be placed in a stable position through the scale mark 5; after the long transverse rods are placed, the short longitudinal rods can be placed. During the process, the position of the short longitudinal rods and the spacing between them can be determined according to the vernier 6. Therefore, after the short longitudinal rods are placed, the railing 8 is formed and preliminarily fixed by spot welding, and then the semi-finished railing 8 is transferred to the subsequent operation section by hoisting or the like, and each connecting seam is further welded.

[0031] When the utility model is in use, for the manufacture of products of the same batch of relatively specified products, after the positions of the front baffle 3 and the rear baffle 2 are adjusted and fixed, no further adjustment is required in the subsequent operation process, and the horizontal long rods of the railing 8 can be directly placed, which is more convenient to use and can effectively improve work efficiency. For the placement of the longitudinal short rods, due to the manufacturing errors of the equipment, etc., it is necessary to observe whether the corresponding scales at both ends of the vernier 61 are consistent during placement, and certain fine-tuning is required when necessary. During the use of the vernier 6, the setting of the side and bottom rollers 64 of the slider 63 makes the movement more labor-saving and convenient.

Claims

1. A welding positioning jig, characterized in that: The invention comprises a bottom plate (1), wherein the bottom plate (1) is provided with a front side plate (12) and a rear side plate (11) on the front and rear sides respectively, a front baffle plate (3) and a rear baffle plate (2) are provided between the front side plate (12) and the rear side plate (11), and an adjustment mechanism (4) is installed through the front side plate (12), the rear side plate (11), the front baffle plate (3) and the rear baffle plate (2); a guide rod (41) and a forward and reverse threaded screw (42) are provided in the adjustment mechanism (4), and the guide rod (41) is connected to the front side plate (12) and the rear side plate (11) by a connecting hole. The front baffle (3) and the rear baffle (2) are connected to each other respectively, and the two ends of the guide rod (41) are fixedly connected to the front side plate (12) and the rear side plate (11) respectively; the positive and negative threaded screws (42) are connected to the front baffle (3) and the rear baffle (2) respectively through threaded holes, and the front baffle (3) and the rear baffle (2) are arranged and installed on both sides of the thread reversing position of the positive and negative threaded screws (42), and the two ends of the positive and negative threaded screws (42) are respectively connected to the front side plate (12) and the rear side plate (11).

2. A welding positioning jig according to claim 1, characterized in that: The front baffle plate (3) and the rear baffle plate (2) are symmetrically arranged relative to the thread reversal position of the forward and reverse threaded screw (42).

3. A welding positioning jig according to claim 1, characterized in that: One end of the forward and reverse threaded screw (42) extends out of the rear side plate (11) and is connected to the bearing (421), and the other end of the forward and reverse threaded screw (42) extends out of the front side plate (12) and is connected to the handle (422).

4. A welding positioning jig according to claim 1, characterized in that: The front side plate (12) and the rear side plate (11) are both provided with scale marks (5), the scale marks (5) on the front side plate (12) and the scale marks (5) on the rear side plate (11) correspond to each other, a vernier scale (6) is slidably installed on the front side plate (12) and the rear side plate (11), and the vernier scale (6) matches the scale marks (5) on the front side plate (12) and the rear side plate (11).

5. A welding positioning jig according to claim 4, characterized in that: The vernier scale (6) comprises a vernier scale (61), lower extensions (62) are arranged on both sides of the vernier scale (61), the lower extensions (62) are connected to a slider (63), and adjustment grooves (7) are arranged on the outer sides of the front side plate (12) and the rear side plate (11), and the slider (63) is slidably engaged in the adjustment grooves (7).

6. A welding positioning jig according to claim 5, characterized in that: One end of the adjustment slot (7) is provided with an opening, and a limit bolt (71) is detachably installed at the opening.

7. A welding positioning jig according to claim 5, characterized in that: The sliding block (63) is connected to the roller (64), and the roller (64) is matched with the adjusting groove (7).

8. A welding positioning jig according to claim 7, characterized in that: The roller (64) is installed on the side and bottom of the adjustment groove (7), and multiple rollers (64) are provided on the side and bottom. The rollers (64) on the side cooperate with the inner side of the adjustment groove (7), and the rollers (64) on the bottom cooperate with the lower side of the adjustment groove (7).

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