Welding and positioning device for inner gantry of forklift

Abstract

The utility model discloses a forklift inner gantry welding positioning device which comprises a welding table, a gantry frame is placed on the top of the welding table, a transverse plate is fixedly connected to the top of the welding table, a rotating plate is rotationally connected to the top of the transverse plate, an air cylinder is fixedly installed on the top of the transverse plate through bolts, and a sliding rail is fixedly installed on the top of the transverse plate through bolts. A sliding block is slidably connected to the top of the sliding rail, a sliding plate is fixedly installed on the top of the sliding block, a supporting rod is jointly and rotatably connected between the rotating plate and the sliding plate, and an inner supporting plate is arranged on the top of the sliding plate. The sliding plates are driven by the air cylinders to move, at the moment, under the matching effect of the rotating plates and the supporting rods, the two sliding plates move oppositely and drive the inner supporting plates to support the inner wall of the portal frame, and therefore the inner wall of the portal frame can be internally supported and positioned, the position of the surface of the portal frame can be stable when side plates are welded, and the service life of the portal frame is prolonged. Therefore, the stability of the welding structure of the inner portal is guaranteed, and the purposes of simple positioning and convenient operation are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of forklift inner gantry welding, and particularly relates to a welding positioning device for a forklift inner gantry. Background Technique

[0002] A forklift is an industrial handling vehicle, referring to various wheeled handling vehicles for loading, unloading, stacking, and short-distance transportation operations of palletized goods. It is commonly used for transporting large objects in warehouses and is usually powered by a fuel engine or a battery. The inner gantry of a forklift is a portal-shaped member welded and combined by two longitudinal beams and one cross beam. The materials of the longitudinal beams and the cross beam are channel steels, and their structures are fixed by welding during production.

[0003] When welding the inner gantry of a forklift, it is necessary to position it to ensure the stability of the position during the welding of the inner gantry's own structure, thereby ensuring the firmness and the qualified rate of the inner gantry structure. Therefore, a welding positioning device for a forklift inner gantry is required. By internally supporting and positioning the inner wall of the frame, the position of the frame surface can be stabilized when welding the side plates, thereby ensuring the stability of the welding structure of the inner gantry, and the positioning is simple and convenient for operation. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a welding positioning device for a forklift inner gantry. By internally supporting and positioning the inner wall of the frame, the position of the frame surface can be stabilized when welding the side plates, thereby ensuring the stability of the welding structure of the inner gantry, and the positioning is simple and convenient for operation, so as to solve the technical problems raised in the above background technique.

[0005] The technical solution of the utility model to solve the above technical problems is as follows: A welding positioning device for a forklift inner gantry, which includes a welding table: A gantry frame is placed on the top of the welding table and fixedly connected with a cross plate. A rotating plate is rotatably connected to the top of the cross plate, and a cylinder is fixedly installed by bolts. A slide rail is fixedly installed on the top of the cross plate by bolts. A slider is slidably connected to the top of the slide rail. A sliding plate is fixedly installed on the top of the slider. A support rod is rotatably connected between the rotating plate and the sliding plate. An inner support plate is arranged on the top of the sliding plate. A workpiece to be welded is placed on the top of the gantry frame.

[0006] Preferably, a cushion strip is pasted on the surface of the inner support plate, and the cushion strip is a rubber pad.

[0007] Preferably, two symmetrically arranged fixing plates are welded on the top of the welding table. A first bolt rod is threadedly connected to the inner wall of the fixing plate, and the end of the first bolt rod abuts against the gantry frame.

[0008] Preferably, an L-shaped block is welded on the top of the sliding plate. A second bolt rod is threadedly connected to the surface of the L-shaped block, and the end of the second bolt rod penetrates into the inner cavity of the L-shaped block and abuts against the inner support plate.

[0009] Preferably, the output end of the cylinder is fixedly connected to the slide plate via a flange.

[0010] The beneficial effects of the utility model are:

[0011] 1. The utility model drives the slide plate to move by the cylinder. At this time, under the cooperation of the rotating plate and the support rod, the two slide plates move back to each other and drive the inner support plate to support the inner wall of the door frame, so that the inner wall of the frame can be positioned by internal support, so that the position of the frame surface can be stabilized when the side plate is welded, thereby ensuring the stability of the inner door frame welding structure, and the positioning is simple and easy to operate;

[0012] 2. The utility model provides padding for the surface of the inner support plate by setting pads, thereby preventing the inner support plate from directly pressing the inner wall of the door frame and causing damage to the latter's surface;

[0013] 3. The utility model fixes the outer wall of the door frame by using the fixing plate and the bolt rod in combination, thereby further improving the stability of the position of the door frame during welding;

[0014] 4. The utility model adjusts the position of the inner support plate on the top of the slide plate by using the L-shaped block and the bolt rod 2, which can adapt to the positioning requirements of door frames of different sizes, thereby improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] in:

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0017] Figure 2 This is an embodiment of the utility model Figure 1 A partial enlarged view of point A;

[0018] Figure 3 The figure is a three-dimensional schematic diagram of a slide rail and a slide block according to an embodiment of the utility model.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Welding table, 2. Door frame, 3. Cross plate, 4. Turn plate, 5. Cylinder, 6. Slide rail, 7. Slider, 8. Slide plate, 9. Support rod, 10. Inner support plate, 11. Pad, 12. Parts to be welded, 13. Fixing plate, 14. Bolt rod one, 15. L-shaped block, 16. Bolt rod two. DETAILED DESCRIPTION

[0021] Hereinafter, an embodiment of a forklift inner mast welding positioning device of the present invention will be described with reference to the accompanying drawings.

[0022] Embodiment 1:

[0023] Figures 1-3 The welding positioning device for the inner gantry of a forklift showing an embodiment of the present utility model includes a welding table 1: A gantry frame 2 is placed on the top of the welding table 1 and fixedly connected with a cross plate 3. A rotating plate 4 is rotatably connected to the top of the cross plate 3 and a cylinder 5 is fixedly installed by bolts. A slide rail 6 is fixedly installed on the top of the cross plate 3 by bolts. A slider 7 is slidably connected to the top of the slide rail 6. A sliding plate 8 is fixedly installed on the top of the slider 7. A support rod 9 is rotatably connected between the rotating plate 4 and the sliding plate 8. An inner support plate 10 is arranged on the top of the sliding plate 8. A cushion strip 11 is pasted on the surface of the inner support plate 10. The cushion strip 11 is a rubber pad. Through the arrangement of the cushion strip 11, the surface of the inner support plate 10 is cushioned, avoiding the situation that the surface of the gantry frame 2 is damaged when the inner support plate 10 directly presses against the inner wall of the gantry frame 2. A workpiece to be welded 12 is placed on the top of the gantry frame 2. Two symmetrically arranged fixed plates 13 are welded on the top of the welding table 1. A first bolt rod 14 is threadedly connected to the inner wall of the fixed plate 13. The end of the first bolt rod 14 abuts against the gantry frame 2. Through the combined use of the fixed plate 13 and the first bolt rod 14, the outer wall of the gantry frame 2 is fixed, further improving the stability of the position of the gantry frame 2 itself during welding.

[0024] Embodiment 2:

[0025] Figures 1-3 The welding positioning device for the inner gantry of a forklift showing an embodiment of the present utility model includes a welding table 1: A gantry frame 2 is placed on the top of the welding table 1 and fixedly connected with a cross plate 3. A rotating plate 4 is rotatably connected to the top of the cross plate 3 and a cylinder 5 is fixedly installed by bolts. A slide rail 6 is fixedly installed on the top of the cross plate 3 by bolts. A slider 7 is slidably connected to the top of the slide rail 6. A sliding plate 8 is fixedly installed on the top of the slider 7. A support rod 9 is rotatably connected between the rotating plate 4 and the sliding plate 8. An inner support plate 10 is arranged on the top of the sliding plate 8. A workpiece to be welded 12 is placed on the top of the gantry frame 2. An L-shaped block 15 is welded on the top of the sliding plate 8. A second bolt rod 16 is threadedly connected to the surface of the L-shaped block 15. The end of the second bolt rod 16 penetrates into the inner cavity of the L-shaped block 15 and abuts against the inner support plate 10. Through the combined use of the L-shaped block 15 and the second bolt rod 16, the position of the inner support plate 10 on the top of the sliding plate 8 is adjusted, which can adapt to the positioning requirements of gantry frames 2 of different sizes, thus improving the applicability of the device. The output end of the cylinder 5 is fixedly connected to the sliding plate 8 through a flange.

[0026] Working principle: When the utility model is in use, the user places the gantry frame 2 on the top of the welding table 1, and then drives the slide plate 8 to move through the air cylinder 5. At this time, under the combined action of the rotating plate 4 and the support rod 9, the two slide plates 8 move away from each other and drive the inner support plate 10 to support the inner wall of the gantry frame 2. During this process, through the combined use of the slide rail 6 and the slider 7, the movement of the slide plate 8 can be limited, avoiding the situation of the slide plate 8 shaking during the movement, achieving the inner support positioning of the inner wall of the frame body, so that the position of the frame body surface is stable when welding the side plates, thus ensuring the stability of the inner gantry welding structure, and the positioning is simple and convenient for operation.

[0027] In summary: For the welding positioning device of the forklift inner gantry, by driving the slide plate 8 to move through the air cylinder 5, at this time, under the combined action of the rotating plate 4 and the support rod 9, the two slide plates 8 move away from each other and drive the inner support plate 10 to support the inner wall of the gantry frame 2, the purpose of inner support positioning of the inner wall of the frame body can be achieved, so that the position of the frame body surface is stable when welding the side plates, thus ensuring the stability of the inner gantry welding structure, and the positioning is simple and convenient for operation.

Claims

1. A welding positioning device for the inner gantry of a forklift, characterized in that, Including a welding table (1): A gantry frame (2) is placed on the top of the welding table (1) and fixedly connected to a cross plate (3). A rotating plate (4) is rotatably connected to the top of the cross plate (3), and a cylinder (5) is fixedly installed by bolts. A slide rail (6) is fixedly installed on the top of the cross plate (3). A slider (7) is slidably connected to the top of the slide rail (6). A sliding plate (8) is fixedly installed on the top of the slider (7). A support rod (9) is rotatably connected between the rotating plate (4) and the sliding plate (8). An inner support plate (10) is arranged on the top of the sliding plate (8). A workpiece to be welded (12) is placed on the top of the gantry frame (2).

2. The forklift inner gantry welding positioning device according to claim 1, characterized in that, A cushion strip (11) is pasted on the surface of the inner support plate (10), and the cushion strip (11) is a rubber pad.

3. A forklift inner gantry welding positioning device according to claim 2, characterized in that, Two symmetrically arranged fixed plates (13) are welded on the top of the welding table (1). A first bolt rod (14) is threadedly connected to the inner wall of the fixed plate (13), and the end of the first bolt rod (14) abuts against the gantry frame (2).

4. A forklift inner gantry welding positioning device according to claim 3, characterized in that, An L-shaped block (15) is welded on the top of the sliding plate (8). A second bolt rod (16) is threadedly connected to the surface of the L-shaped block (15), and the end of the second bolt rod (16) penetrates into the inner cavity of the L-shaped block (15) and abuts against the inner support plate (10).

5. A forklift inner gantry welding positioning device according to claim 4, characterized in that, The output end of the cylinder (5) is fixedly connected to the sliding plate (8) through a flange.

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