Spot welding positioning clamp

Abstract

The utility model discloses a spot welding positioning fixture, which comprises a welding table, a placing groove, lifting plates, a fixed support, a movable positioning plate and a movable limiting plate, the placing groove is arranged on the welding table, a plurality of lifting plates are arranged on the inner wall of the placing groove, the fixed support is arranged on the welding table, and the movable positioning plate is arranged on the movable limiting plate. The fixing support is composed of stand columns, first limiting blocks, a limiting strip, a connecting strip and a second limiting block, the number of the stand columns is two, the two stand columns are located on the two sides of the containing groove respectively, the first limiting blocks are fixed to the two stand columns, and the limiting strip is connected between the two first limiting blocks. The placing groove positioning base plate and the fixing support are matched with the movable positioning plate and the movable limiting plate, so that the bent plate is positioned, the positioning groove positions the reinforcing plate, the relative position relation between all parts of a workpiece is positioned, and the relative position relation between all the parts of the welded workpiece is effectively guaranteed; and the product quality of the workpiece is ensured.

Description

[Technical field]

[0001] The utility model relates to the technical field of machinery, in particular to the technical field of spot welding positioning fixtures. [Background technology]

[0002] There is a workpiece, which is composed of a base plate, a bending plate and a reinforcing plate. The bending plate is welded on the base plate. The bending plate is composed of a first plate body, a second plate body and a third plate body connected in sequence. The first plate body, the second plate body and the third plate body are all perpendicular to the base plate. The bending plate forms an isosceles trapezoidal opening groove. Several reinforcing plates are welded on the first plate body and the third plate body. The reinforcing plates are located outside the trapezoidal opening groove formed by the bending plates. The reinforcing plates are also welded to the base plate. Since there is no component for positioning the bending plate on the base plate and there is no component for positioning the reinforcing plate on the bending plate, it is difficult to position during welding. It is very necessary to develop a special spot welding positioning fixture. [Contents of the utility model]

[0003] The purpose of the utility model is to solve the problems in the prior art and to provide a spot welding positioning fixture, which can position the base plate, the bent plate and the block reinforcement plate during welding, thereby ensuring the accuracy of the welding position.

[0004] In order to achieve the above-mentioned purpose, the utility model proposes a spot welding positioning fixture, including a welding table, a placement slot, a lifting plate, a fixed bracket, a movable positioning plate, and a movable limiting plate. A placement slot is provided on the welding table, and a plurality of lifting plates are provided on the inner wall of the placement slot. A fixed bracket is installed on the welding table, and the fixed bracket consists of a column, a first limiting block, a limiting strip, a connecting strip, and a second limiting block. There are two columns, and the two columns are respectively located on both sides of the placement slot. The first limiting blocks are fixed on the two columns, and the limiting strip is connected between the two first limiting blocks. The two first limiting blocks and the limiting strip The formed combination spans the placement slot, and a plurality of vertically arranged connecting strips are fixed to the upper end of the limit strip, and a second limit block is fixed to the top of the connecting strip. At least one movable positioning plate and at least one movable limit plate are provided above the welding table, and the movable positioning plate and the movable limit plate are both connected with a push-pull mechanism, and the push-pull mechanism drives the connected movable positioning plate or movable limit plate to move horizontally in a direction perpendicular to the limit strip. The push-pull mechanism is installed on the welding table, and a plurality of positioning grooves are provided on the movable positioning plate, and the positioning grooves penetrate the movable positioning plate, and the movable positioning plate opens on the side wall facing the limit strip.

[0005] Preferably, the push-pull mechanism consists of a fixed seat, a guide sleeve, a push-pull rod, a connecting frame, a handle, and an auxiliary table. The fixed seat is installed on the welding table, and an auxiliary table and a guide sleeve are fixed on the fixed seat. The push-pull rod passes through the guide sleeve, and the push-pull rod is fixed to a movable positioning plate or a movable limiting plate connected to the push-pull mechanism. The push-pull rod and the handle are both hinged to the connecting frame, and the handle is also hinged to the auxiliary table. The hinge position of the connecting frame and the push-pull rod is closer to the limit bar than the hinge position of the handle and the auxiliary table.

[0006] Preferably, a rotating disk is rotatably mounted on the welding table, a push-pull mechanism connected to the movable limiting plate is mounted on the rotating disk, and an extension line of the motion trajectory of the movable limiting plate passes directly above the rotation center of the rotating disk.

[0007] Preferably, a guide groove parallel to the moving direction of the movable positioning plate is provided at the bottom of the movable positioning plate, and a guide strip matching the guide groove is provided on the welding platform.

[0008] The beneficial effects of the utility model are as follows: the utility model positions the substrate by placing the placement groove, the fixed bracket cooperates with the movable positioning plate and the movable limiting plate to position the bending plate, and the positioning groove positions the reinforcing plate, so that the relative position relationship between various parts of the workpiece is positioned, so that the relative position relationship between various parts of the workpiece after welding is effectively guaranteed, thereby ensuring the product quality of the workpiece.

[0009] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

Brief Description of the Drawings

[0010] Figure 1 This is the front view of the spot welding positioning fixture of the utility model;

[0011] Figure 2 This is the front view of the spot welding positioning fixture of the utility model in use;

[0012] Figure 3 It is a schematic diagram of a fixing bracket of the spot welding positioning fixture of the utility model.

[0013] In the figure: 1-welding table, 2-fixed bracket, 3-movable positioning plate, 4-movable limiting plate, 5-push-pull mechanism, 6-base plate, 10-placing slot, 11-lifting plate, 12-rotating plate, 13-guide bar, 20-column, 21-first limiting block, 22-limiting bar, 23-connecting bar, 24-second limiting block, 30-positioning slot, 50-push-pull rod, 51-fixed seat, 52-guide sleeve, 53-connecting frame, 54-auxiliary table, 55-handle, 61-bending plate, 62-reinforcement plate. [Specific implementation method]

[0014] See also Figure 1 , Figure 2 , Figure 3 The utility model spot welding positioning fixture is used to process a workpiece, which consists of a base plate 6, a bending plate 61 and a reinforcing plate 62. The bending plate 61 is welded on the base plate 6. The bending plate 6 consists of a first plate body, a second plate body, and a third plate body connected in sequence. The first plate body, the second plate body, and the third plate body are all perpendicular to the base plate 6. The bending plate 61 forms an isosceles trapezoidal opening groove. A plurality of reinforcing plates 62 are welded on the first plate body and the third plate body. The reinforcing plates 62 are located on the outside of the trapezoidal opening groove formed by the bending plate 61, and the reinforcing plates 62 and the base plate 6 are also welded together.

[0015] The spot welding positioning fixture includes a welding table 1, a placement groove 10, a lifting plate 11, a fixed bracket 2, a movable positioning plate 3, and a movable limiting plate 4. The welding table 1 is provided with a placement groove 10, which is adapted to the substrate 6. A plurality of lifting plates 11 are provided on the inner wall of the placement groove 10, and the lifting plates 11 are used to support the substrate 6.

[0016] A fixed bracket 2 is installed on the welding table 1, and the fixed bracket 2 consists of a column 20, a first limit block 21, a limit strip 22, a connecting strip 23, and a second limit block 24. There are two columns 20, and the two columns 20 are respectively located on both sides of the placement groove 10. The first limit blocks 21 are fixed on the two columns 20, and the first limit blocks 21 are used to support the two end surfaces of the bending plate 61. The limit strip 22 is connected between the two first limit blocks 21, and the limit strip 22 is adapted to the bending plate 61. The limit strip 22 is used to support the inner side of the isosceles trapezoidal opening groove formed by the bending plate 61. The combination of the two first limit blocks 21 and the limit strip 22 spans the placement groove 10.

[0017] A plurality of vertically arranged connecting strips 23 are fixed to the upper end of the limiting strip 22 , and a second limiting block 24 is fixed to the top end of the connecting strip 23 . The second limiting block 24 is used to abut against the upper end surface of the bending plate 61 .

[0018] At least one movable positioning plate 3 and at least one movable limiting plate 4 are provided above the welding table 1. The best arrangement is two movable positioning plates 3 and one movable limiting plate 4. The two movable positioning plates 3 are respectively used to support the first plate body and the third plate body of the bending plate 61, and the movable limiting plate 4 is used to support the second plate body of the bending plate 61.

[0019] The movable positioning plate 3 and the movable limiting plate 4 are both connected with a push-pull mechanism 5, which drives the connected movable positioning plate 3 or movable limiting plate 4 to move horizontally in a direction perpendicular to the limiting strip 22. The push-pull mechanism 5 is installed on the welding table 1.

[0020] The movable positioning plate 3 is provided with a plurality of positioning grooves 30 , which penetrate the movable positioning plate 3 . The movable positioning plate 3 is open on the side wall facing the limiting strip 22 . The positioning grooves 30 are adapted to the reinforcing plate 62 . The positioning grooves 30 are used to press the reinforcing plate 62 inserted into the positioning grooves 30 onto the bending plate 61 .

[0021] The push-pull mechanism 5 is composed of a fixed seat 51, a guide sleeve 52, a push-pull rod 50, a connecting frame 53, a handle 55, and an auxiliary platform 54. The fixed seat 51 is installed on the welding table 1. An auxiliary platform 54 and a guide sleeve 52 are fixed on the fixed seat 51. The push-pull rod 50 passes through the guide sleeve 52. The push-pull rod 50 is fixed to the movable positioning plate 3 or the movable limiting plate 4 connected to the push-pull mechanism 5. The push-pull rod 50 and the handle 55 are both hinged to the connecting frame 53. The handle 55 is also hinged to the auxiliary platform 54. The hinge position of the connecting frame 53 and the push-pull rod 50 is closer to the limiting strip 22 than the hinge position of the handle 55 and the auxiliary platform 54. When the movable positioning plate 3 and the movable limiting plate 4 hold the bending plate 61 against the bending plate 61, the hinge position of the connecting frame 53 and the push-pull rod 50, the hinge position of the handle 55 and the auxiliary platform 54, and the hinge position of the connecting frame 53 and the handle 55 are located on the same straight line.

[0022] A rotating disk 12 is rotatably mounted on the welding table 1 , and a rotating handle is provided on the rotating disk 12 . A push-pull mechanism 5 connected to a movable limiting plate 4 is mounted on the rotating disk 12 , and an extension line of the motion trajectory of the movable limiting plate 4 passes directly above the rotation center of the rotating disk 12 .

[0023] The bottom of the movable positioning plate 3 is provided with a guide groove parallel to the moving direction of the movable positioning plate 3, and the welding table 1 is provided with a guide bar 13 matched with the guide groove.

[0024] Working process of this utility model:

[0025] During the working process of the spot welding positioning fixture of the utility model, the handles 55 of the three push-pull mechanisms 5 are first pushed upward to make the push-pull rod 50 retreat, and the rotating disk 12 is rotated so that the push-pull mechanism 5 thereon is in a state of being parallel to the limiting strip 22 corresponding to the second plate body, and then the substrate 6 is placed in the placement groove 10, and then the bending plate 61 is placed on the substrate 6. When placing, the bending plate 61 is supported by the hand so that the bending plate 61 is supported by the first limiting block 21, the limiting strip 22, and the second limiting block 24, and then the handle 55 of the push-pull mechanism 5 connected to the movable positioning plate 3 is pressed downward so that the movable positioning plate 3 is moved downward. The plate 3 is pressed against the bending plate 61, and then the rotating disk 12 is rotated so that the push-pull rod 50 on the push-pull mechanism 5 thereon is perpendicular to the limiting strip 22 corresponding to the second plate body, and then the handle 55 is pressed downward so that the movable limiting plate 4 is pressed against the bending plate 61, and then the two movable positioning plates 3 are released, and the reinforcing plate 62 is inserted into the positioning groove 30, and the movable positioning plate 3 is pressed against the bending plate 61 again. At this time, the reinforcing plate 62 is close to the bending plate, and then the base plate 6, the bending plate 61 and the reinforcing plate 62 are spot welded together by a spot welding machine, and then the workpiece is removed, and the connecting parts of the workpiece are welded together by an electric welding machine.

[0026] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. Spot welding positioning fixture, characterized by: The invention comprises a welding platform (1), a placement groove (10), a lifting plate (11), a fixed bracket (2), a movable positioning plate (3), and a movable limiting plate (4). The welding platform (1) is provided with a placement groove (10), and a plurality of lifting plates (11) are provided on the inner wall of the placement groove (10). The welding platform (1) is provided with a fixed bracket (2), and the fixed bracket (2) is composed of a column (20), a first limiting block (21), a limiting strip (22), a connecting strip (23), and a second limiting block (24). There are two columns (20), and the two columns (20) are respectively located on both sides of the placement groove (10). The two columns (20) are both fixed with a first limiting block (21), and a limiting strip (22) is connected between the two first limiting blocks (21). The two first limiting blocks (21) and the limiting strip (22) are connected to each other. The assembled body spans the placement groove (10), a plurality of vertically arranged connecting strips (23) are fixed to the upper end of the limiting strip (22), a second limiting block (24) is fixed to the top of the connecting strip (23), at least one movable positioning plate (3) and at least one movable limiting plate (4) are arranged above the welding platform (1), the movable positioning plate (3) and the movable limiting plate (4) are both connected with a push-pull mechanism (5), the push-pull mechanism (5) drives the connected movable positioning plate (3) or movable limiting plate (4) to move horizontally in a direction perpendicular to the limiting strip (22), the push-pull mechanism (5) is installed on the welding platform (1), a plurality of positioning grooves (30) are arranged on the movable positioning plate (3), the positioning grooves (30) penetrate the movable positioning plate (3), and the movable positioning plate (3) opens on the side wall facing the limiting strip (22).

2. The spot welding positioning fixture according to claim 1, characterized in that: The push-pull mechanism (5) is composed of a fixed seat (51), a guide sleeve (52), a push-pull rod (50), a connecting frame (53), a handle (55), and an auxiliary platform (54). The fixed seat (51) is installed on the welding platform (1). An auxiliary platform (54) and a guide sleeve (52) are fixed on the fixed seat (51). The push-pull rod (50) passes through the guide sleeve (52). The push-pull rod (50) is fixed to a movable positioning plate (3) or a movable limiting plate (4) connected to the push-pull mechanism (5). The push-pull rod (50) and the handle (55) are both hinged to the connecting frame (53). The handle (55) is also hinged to the auxiliary platform (54). The hinge position of the connecting frame (53) and the push-pull rod (50) is closer to the limiting strip (22) than the hinge position of the handle (55) and the auxiliary platform (54).

3. The spot welding positioning fixture according to claim 1, characterized in that: A rotating disk (12) is rotatably mounted on the welding table (1), a push-pull mechanism (5) connected to a movable limit plate (4) is mounted on the rotating disk (12), and an extension line of the movement trajectory of the movable limit plate (4) passes directly above the rotation center of the rotating disk (12).

4. The spot welding positioning fixture according to claim 1, characterized in that: The bottom of the movable positioning plate (3) is provided with a guide groove parallel to the moving direction of the movable positioning plate (3), and the welding table (1) is provided with a guide strip (13) matching the guide groove.

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