Thick plate bending, welding and positioning tool

Abstract

The utility model provides a thick plate bending welding positioning tool, which relates to the positioning tool field, and comprises a pedestal, the upper side of the pedestal is provided with an adjusting assembly, the adjusting assembly comprises a double-shaft cylinder, the two ends of the double-shaft cylinder are connected with connecting plates, the front ends of the connecting plates are connected with a bending assembly, the bending assembly comprises a moving plate, and the moving plate is connected with the adjusting assembly. A second air cylinder is arranged on the upper side of the movable plate, meanwhile, bending plates are connected to the inner side end of the second air cylinder, a clamping assembly is arranged between the bending assemblies and comprises a first air cylinder, a connecting rod mechanism is connected to the rear end of the first air cylinder, a sliding rod is connected to the outer side of the connecting rod mechanism, and a movable clamping block is connected to the outer end of the sliding rod. And a fixed clamping block is arranged on the outer side of the movable clamping block. The thick plate bending device has the effects of clamping, positioning and bending a thick plate and facilitating subsequent welding.

Description

Technical Field

[0001] This utility model relates to the field of positioning tooling technology, specifically to a positioning tooling for thick plate bending and welding. Background Technology

[0002] Thick plates are required as raw materials when processing and manufacturing heavy truck chassis stamping parts. Thick plates have excellent properties such as good impact resistance and corrosion resistance. During the processing, thick plates need to be fixed by positioning fixtures and then subjected to bending and welding processes.

[0003] A search revealed existing technology (publication number: CN216029011U), which describes "a positioning fixture for bending and welding thick plates, comprising a guide rail fixedly installed on the upper end of a base, with a connecting block connected to the upper end of the guide rail, and the connecting block fixedly connected to the bottom end of a movable plate; an installation block fixedly installed on the upper end of the base; a motor fixedly installed on the top of the base; a first screw connected to the output end of the motor; a mating block connected to the outer surface of the first screw; the mating block fixedly installed on the bottom end of the movable plate; a knob located on the side end of the movable plate; and a second screw connected to the output end of the knob. This positioning fixture for bending and welding thick plates includes mating blocks and protrusions. The motor drives the screw to rotate, causing the two sets of mating blocks to move the movable plate towards each other, clamping and fixing the material plate. Simultaneously, the rotation of the knob moves the sleeve block, causing the gear and rack to mesh and drive, causing the protrusion to extend out of the movable plate to press and fix the material plate secondary, improving the stability of the thick plate."

[0004] Although existing thick plate bending and welding positioning fixtures achieve stable positioning of thick plates, they still have some shortcomings: existing thick plate bending and welding positioning fixtures can only clamp one thick plate for welding two thick plates, and cannot achieve synchronous clamping, which makes welding inconvenient after positioning. Secondly, they lack bending function, which leads to functional deviations in the use of the above-mentioned fixtures when thick plates need to be bent before welding. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, a thick plate bending and welding positioning fixture is provided to solve the problems mentioned in the background.

[0006] To achieve the above objectives, a thick plate bending and welding positioning fixture is provided, comprising: a base, an adjustment assembly on the upper side of the base, the adjustment assembly including a dual-axis cylinder, and connecting plates connected to both ends of the dual-axis cylinder; a bending assembly connected to the front end of the connecting plate, the bending assembly including a movable plate, and a second cylinder on the upper side of the movable plate, with a bending plate connected to the inner end of the second cylinder; a clamping assembly between the bending assemblies, the clamping assembly including a first cylinder, and a linkage mechanism connected to the rear end of the first cylinder; a sliding rod connected to the outer side of the linkage mechanism, and a movable clamping block connected to the outer end of the sliding rod, with a fixed clamping block on the outer side of the movable clamping block.

[0007] Furthermore, each of the connecting plates is connected to a guide rod on its opposite side, and the guide rod is slidably inserted into a guide sleeve fixed on the upper side of the base, and the two guide rods are not collinear in the horizontal direction.

[0008] Furthermore, the clamping assembly also includes a fixing frame, which is configured as a U-shaped structure, and the first cylinder is installed at the front end of the fixing frame.

[0009] Furthermore, the linkage mechanism includes a first connecting rod connected to the piston rod end of the first cylinder, and the other end of the first connecting rod is simultaneously hinged to a second connecting rod and a third connecting rod, and the outer ends of the second connecting rod and the third connecting rod are hinged to the inner end of the slide rod.

[0010] Furthermore, the slide rod slides horizontally through the outer side plate of the fixed frame, and there is a gap between the slide rod and the base.

[0011] Furthermore, the fixed clamping block and the movable clamping block are at the same height, and the upper end of the fixed clamping block is connected to a mounting plate, and the second cylinder is installed on the outside of the mounting plate.

[0012] Furthermore, the fixed clamping block is fixed to the upper end of the movable plate, and a guide plate is provided on the inner side of the movable plate, and the guide plate is slidably inserted into the guide grooves opened at the bottom of both sides of the base.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By utilizing the first cylinder, fixed frame, linkage mechanism, slide rod, moving clamping block, and fixed clamping block included in the clamping assembly, the thick plate is vertically placed between the moving clamping block and the fixed clamping block. Then, the first cylinder is activated, and the piston rod of the first cylinder pushes the second and third connecting rods of the linkage structure outward. In turn, the moving clamping block is moved towards the fixed clamping block through the slide rod, thereby achieving the clamping and positioning of the thick plate. This allows two thick plates to be clamped simultaneously using a single power source.

[0015] 2. Utilizing the second cylinder, mounting plate, and bending plate included in the bending assembly, the bending plate is driven to move towards the thick plate when it is held by the passive clamping block and the fixed clamping block of the thick plate. This causes the portion of the thick plate exceeding the moving clamping block to bend inwards until it is bent to a horizontal state, thus achieving the bending operation of the thick plate. Then, by adjusting the dual-axis cylinder, guide rod, guide sleeve, and connecting plate included in the assembly, the connecting plate is driven by the dual-axis cylinder. The guide plate and guide groove facilitate the adjustment of the two bent thick plates to move closer together, thereby aligning the edges and facilitating subsequent welding operations, thus improving the functionality of the positioning fixture. Attached Figure Description

[0016] Figure 1 This is a top view of the overall structure of an embodiment of the present utility model.

[0017] Figure 2 This is a top view of the structure after bending according to an embodiment of the present utility model.

[0018] Figure 3 This is a front view of the bending component according to an embodiment of the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of the bending plate according to an embodiment of the present utility model.

[0020] In the diagram: 1. Base; 11. Guide groove; 2. Adjustment assembly; 21. Dual-axis cylinder; 22. Guide rod; 23. Guide sleeve; 24. Connecting plate; 3. Clamping assembly; 31. First cylinder; 32. Fixing frame; 33. Linkage mechanism; 34. Slide rod; 35. Moving clamping block; 36. Fixed clamping block; 4. Bending assembly; 41. Second cylinder; 42. Mounting plate; 43. Bending plate; 44. Moving plate; 441. Guide plate. Detailed Implementation

[0021] Reference Figures 1 to 4 As shown, this utility model provides a thick plate bending and welding positioning fixture, including: a base 1, an adjustment component 2 on the upper side of the base 1, and the adjustment component 2 including a dual-axis cylinder 21, and connecting plates 24 connected to both ends of the dual-axis cylinder 21, a bending component 4 connected to the front end of the connecting plate 24, and the bending component 4 including a moving plate 44, and a second cylinder 41 on the upper side of the moving plate 44, and a bending plate 43 connected to the inner end of the second cylinder 41, and a clamping component 3 between the bending components 4, and the clamping component 3 including a first cylinder 31, and a linkage mechanism 33 connected to the rear end of the first cylinder 31, a sliding rod 34 connected to the outer side of the linkage mechanism 33, and a movable clamping block 35 connected to the outer end of the sliding rod 34, and a fixed clamping block 36 on the outer side of the movable clamping block 35.

[0022] In this embodiment, the base 1, the adjustment component 2, the clamping component 3, and the bending component 4 constitute the main structure of the thick plate bending and welding positioning fixture involved in this application.

[0023] Specifically, the base 1 is designed as a rectangular plate structure and is fixed to the work surface or desktop.

[0024] Specifically, the clamping assembly 3 includes a movable clamping block 35 and a fixed clamping block 36, and the bending assembly 4 is configured as two sets that are symmetrical from left to right.

[0025] It should be noted that the upper end face of the movable clamping block 35 is provided with a scale, which makes it convenient to clamp and position the thick plate. The thick plate can be centered in the movable clamping block 35 by the length of the thick plate exceeding the edge of the movable clamping block 35, thereby ensuring that the edges of the two thick plates can be aligned during subsequent moving and welding.

[0026] like Figure 1 , Figure 3 and Figure 4 In the middle, guide rods 22 are connected to opposite sides of the connecting plate 24, and the guide rods 22 are slidably inserted into the guide sleeves 23 fixed on the upper side of the base 1. The two guide rods 22 are not collinear in the horizontal direction. The clamping assembly 3 also includes a fixing frame 32, which is U-shaped. The first cylinder 31 is installed at the front end of the fixing frame 32. The linkage mechanism 33 includes a first connecting rod connected to the piston rod end of the first cylinder 31, and the other end of the first connecting rod is simultaneously hinged to a second connecting rod and a third connecting rod. The outer end of the third connecting rod is hinged to the inner end of the slide rod 34. The slide rod 34 slides horizontally through the outer plate of the fixed frame 32, and there is a gap between the slide rod 34 and the base 1. The fixed clamping block 36 and the movable clamping block 35 are at the same height, and the upper end of the fixed clamping block 36 is connected to the mounting plate 42. The second cylinder 41 is installed on the outside of the mounting plate 42. The fixed clamping block 36 is fixed to the upper end of the movable plate 44, and the inner end of the movable plate 44 is provided with a guide plate 441. The guide plate 441 is slidably inserted into the guide grooves 11 opened at the bottom of both sides of the base 1.

[0027] As a preferred embodiment, the guide rod 22 and guide sleeve 23 are provided to facilitate the linear movement of the connecting plate 24.

[0028] Specifically, the first link of the linkage mechanism 33 has the same angle with the second link and the third link, and the second link and the third link are hinged to the first link by a pin. The second link and the third link are stacked on top of each other, that is, they are not at the same height.

[0029] Specifically, the fixing bracket 32 ​​is fixed on the upper side of the base 1, and the sliding rod 34 is guided and limited by the two side plates of the fixing bracket 32.

[0030] As a preferred embodiment, by providing a guide plate 441 and a guide groove 11, the movement of the movable plate 44 is easily guided.

[0031] In use, the clamping assembly, including a first cylinder, a fixed frame, a linkage mechanism, a slide bar, a movable clamping block, and a fixed clamping block, vertically positions the thick plate between the movable and fixed clamping blocks. Then, the first cylinder is activated, causing its piston rod to push the second and third connecting rods of the linkage structure outwards. This, in turn, moves the movable clamping block towards the fixed clamping block via the slide bar, achieving clamping and positioning of the thick plate. This allows for the simultaneous clamping of two thick plates using a single power source. Similarly, the bending assembly, including a second cylinder, a mounting plate, and a bending plate, positions the thick plate between the movable and fixed clamping blocks. In the clamping state, the second cylinder is activated to drive the bending plate to move towards the thick plate, thereby bending the portion of the thick plate that exceeds the moving clamping block inward to a horizontal state, thus achieving the bending operation of the thick plate. Then, by adjusting the dual-axis cylinder, guide rod, guide sleeve, and connecting plate included in the assembly, the dual-axis cylinder drives the connecting plate, and the guide plate and guide groove facilitate the adjustment of the two bent thick plates to move closer together, thereby aligning the edges and facilitating subsequent welding operations, thus improving the functionality of the positioning fixture.

[0032] The thick plate bending and welding positioning fixture of this utility model can effectively solve the problems mentioned in the background technology, and achieve the effects of clamping, positioning, bending and facilitating subsequent welding of thick plates based on the existing thick plate bending and welding positioning fixture technology.

Claims

1. A plate bending and welding fixture, comprising: The base (1) is characterized in that: the upper side of the base (1) is provided with an adjusting assembly (2), the adjusting assembly (2) comprises a double-shaft air cylinder (21), both ends of the double-shaft air cylinder (21) are connected with connecting plates (24), the front ends of the connecting plates (24) are connected with bending assemblies (4), the bending assemblies (4) comprise moving plates (44), the upper side of each moving plate (44) is provided with a second air cylinder (41), the inner side end of each second air cylinder (41) is connected with a bending plate (43), clamping assemblies (3) are arranged between the bending assemblies (4), the clamping assemblies (3) comprise first air cylinders (31), the rear ends of the first air cylinders (31) are connected with connecting rod mechanisms (33), the outer sides of the connecting rod mechanisms (33) are connected with slide rods (34), the outer ends of the slide rods (34) are connected with movable clamping blocks (35), and fixed clamping blocks (36) are arranged on the outer sides of the movable clamping blocks (35).

2. The thick plate bending and welding positioning tooling according to claim 1, characterized in that, The connecting plates (24) are connected with guide rods (22) on opposite sides, the guide rods (22) are slidably connected with guide sleeves (23) fixed on the upper side of the base (1), and the two guide rods (22) are not collinear in the horizontal direction.

3. The thick plate bending and welding positioning tooling according to claim 1, characterized in that, The clamping assemblies (3) further comprise fixed frames (32), the fixed frames (32) are in U-shaped structures, and the first air cylinders (31) are installed at the front ends of the fixed frames (32).

4. The thick plate bending and welding positioning tooling apparatus as defined in claim 1 wherein, The connecting rod mechanisms (33) comprise first connecting rods connected with the piston rod ends of the first air cylinders (31), the other ends of the first connecting rods are hingedly connected with second connecting rods and third connecting rods, and the outer ends of the second connecting rods and the third connecting rods are hingedly connected with the inner side ends of the slide rods (34).

5. The thick plate bending and welding positioning tooling apparatus as defined in claim 1 wherein, The slide rods (34) horizontally slide through the outer side plates of the fixed frames (32), and a gap is arranged between the slide rods (34) and the base (1).

6. The thick plate bending and welding positioning tooling apparatus as defined in claim 1 wherein, The fixed clamping blocks (36) are in the same height as the movable clamping blocks (35), the upper ends of the fixed clamping blocks (36) are connected with mounting plates (42), and the second air cylinders (41) are installed on the outer sides of the mounting plates (42).

7. The thick plate bending and welding positioning tooling apparatus as defined in claim 1 wherein, The fixed clamping blocks (36) are fixed on the upper ends of the moving plates (44), the inner side ends of the moving plates (44) are provided with guide plates (441), and the guide plates (441) are slidably connected in guide grooves (11) arranged in the bottoms of the base (1).

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