Metal plate box body welding clamp

Abstract

The utility model discloses a welding fixture for a sheet metal box body. The welding fixture comprises a vertical plate and two clamping components, the clamping assembly comprises an upper pressing block and two connecting rods, wherein the upper pressing block and the two connecting rods are longitudinally connected to the vertical plate in a sliding mode. One connecting rod is rotationally connected with the upper pressing block and is rotationally connected with the upper end of the vertical plate, and the other ends of the two connecting rods are rotationally connected with a middle rotating shaft at the same time; a lifting plate is longitudinally connected to the vertical plate in a sliding manner; and the lifting plate can selectively lock the middle rotating shaft. And the metal plate box body is obliquely clamped on the bottom plate and can rotate relative to the table top, so that welding operation is facilitated. And when the upper pressing block and the side pressing block clamp the metal plate box body, the metal plate box body cannot move, and when the upper pressing block and the side pressing block are loosened, the metal plate box body is convenient to take and place. The lifting plate longitudinally slides to drive the upper pressing block and the side pressing block to move at the same time, the position of the metal plate box can be kept, the clamping stability is improved, no new operation step is added, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of sheet metal clamps, in particular to a sheet metal box welding clamp. Background Art

[0002] The sheet metal box welding process is a comprehensive process of cold working for sheets with a thickness of less than 6 mm, which includes steps such as folding, welding, riveting, splicing and forming. Among these steps, welding is a very important link, which is often used to weld splicing seams, or weld nuts and other structural sheet metals on the end faces of sheet metal. The quality of the welding process directly affects the final quality and performance of the sheet metal box. The sheet metal box welding fixture is a tool used to fix and position the sheet metal box for welding. This fixture is usually made of high-strength materials and has the characteristics of high precision and high durability. It can effectively improve welding efficiency, reduce enterprise costs, and solve the problem of difficulty in recruiting workers. In addition, the sheet metal box welding fixture also has the advantages of economy, safety, repeatability and modularity.

[0003] The Chinese patent document with publication number CN218136069U discloses a sheet metal welding clamping device, including a mounting bracket, two support plates symmetrically distributed in an inverted V shape and whose inclined upper ends are horizontally rotatably connected to the top of the mounting bracket, and an angle adjustment device installed on the mounting bracket for adjusting the angle between the two support plates, the angle adjustment device including at least one group of adjustment mechanisms, the adjustment mechanism including a sliding sleeve that can be vertically slidably adjusted with the mounting bracket and at least one pair of first support arms symmetrically distributed in a V shape and whose lower ends are rotatably connected to the sliding sleeve, the upper ends of the pair of first support arms are respectively rotatably connected to the two support plates, a limiting device is fixedly installed on each support plate, the limiting device includes a limiting folding plate for supporting the bottom side of the sheet metal and can slide and adjust with the support plate along its inclined direction and lock the position after sliding, a clamp device for fixing the sheet metal is fixedly arranged on the limiting folding plate, and the clamp device is suitable for welding sheet metals of multiple specifications, multiple welding angles and different weights.

[0004] In the above-mentioned patent solution, the fixation of the welded parts is completed by the cooperation of multiple clamping components, which has the problems of complex structure and high manufacturing cost, and also increases the potential risk of failure. In addition, the fixation of the welded parts requires manual participation, and the fixation and release are achieved by turning the third hand wheel multiple times, so the welding steps are cumbersome and the work efficiency is low. Utility Model Content

[0005] In order to overcome the technical problems in the prior art that the welding fixture for sheet metal boxes has a complex structure, cumbersome operation process and inconvenient operation; one purpose of the utility model is to provide a sheet metal box welding fixture, by arranging a lifting plate transmission connected to the upper pressure block on the vertical plate, the lifting plate slides up and down to drive the upper pressure block to complete clamping and release, and the upper pressure block in the clamping state cannot drive the lifting plate to move, thereby realizing the locking of the sheet metal box.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sheet metal box welding fixture, comprising two vertical plates symmetrically arranged on a table top and two clamping assemblies respectively arranged on the two vertical plates; the clamping assembly comprises an upper pressure block and two connecting rods longitudinally slidably connected to the vertical plates; wherein, one end of one of the connecting rods is rotatably connected to the upper pressure block, one end of the other connecting rod is rotatably connected to the upper end of the vertical plate, and the other ends of the two connecting rods are simultaneously rotatably connected to a central shaft; a lifting plate is longitudinally slidably connected to the vertical plate; the lifting plate can selectively lock the central shaft.

[0007] Specifically, two first combination grooves are symmetrically arranged on the lifting plate and are respectively slidably connected to the corresponding central rotating shafts; the first combination groove includes a longitudinally arranged locking vertical groove and an inclined switching groove located at the lower end of the locking vertical groove.

[0008] The lifting plate slides downward under the action of gravity, and the rotating shaft enters into the locking vertical groove. The rotating shaft cannot move, that is, the upper pressure block cannot move. The upper pressure block keeps the sheet metal box clamped and fixed, and the clamping of the sheet metal box is completed with simple operation; at the same time, the upper pressure block can be moved by moving the lifting plate up and down, and then the sheet metal box can be replaced, which shortens the processing cycle and improves work efficiency.

[0009] Furthermore, the clamping assembly includes a side pressure block horizontally slidably connected to the vertical plate; the side pressure block is transmission-connected to the upper pressure block.

[0010] Specifically, a linkage column is arranged below the upper pressure block; the axis of the linkage column is perpendicular to the sliding axis of the upper pressure block; a second combination groove is arranged on the side pressure block and is slidably connected to the linkage column; the second combination groove includes an inclined side pressure bevel groove and a vertically arranged retaining vertical groove located at the lower end of the side pressure bevel groove.

[0011] When the upper pressure block slides downward to clamp the sheet metal box, the linkage column drives the side pressure inclined groove to clamp and limit the horizontal movement of the sheet metal box. Subsequently, the linkage column enters the vertical retaining groove. During the process of the upper pressure block continuing to slide downward, the sheet metal box does not move in the horizontal direction, thereby reducing the wear of the sheet metal box on the upper pressure block and increasing the service life of the upper pressure block.

[0012] Furthermore, an inclined supporting surface is obliquely arranged on the vertical plate; a lower stopper is arranged at the lower end of the inclined supporting surface; and a right-angle notch is arranged at the lower end of the upper pressing block.

[0013] Preferably, the angle between the inclined supporting surface and the horizontal plane is 60°.

[0014] The sheet metal box is clamped between the lower stopper and the upper pressing block, and the sheet metal box is clamped at an angle to facilitate welding operations.

[0015] Furthermore, the upper end of the table top is rotatably connected to a bottom plate; a bearing is provided between the bottom plate and the table top; and the two vertical plates are respectively provided on the upper ends of the bottom plate.

[0016] During the welding process, the sheet metal box can be rotated driven by the bottom plate, thereby facilitating the welding operation.

[0017] Specifically, a sliding column slidably connected to the vertical plate is disposed at the lower end of the upper pressing block; and the linkage column is disposed at the lower part of the outer wall of the sliding column.

[0018] Furthermore, the upper end of the vertical plate is provided with a guide hole slidably connected to the sliding column; the side wall of the vertical plate is provided with a mounting groove connected to the guide hole; and the linkage column is slidably connected in the mounting groove.

[0019] The linkage column is installed on the sliding column through the installation slot, which is convenient for overall assembly.

[0020] Furthermore, a handle is provided at the front end of the lifting plate.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. The sheet metal box is tilted and clamped on the bottom plate, and can be rotated relative to the tabletop to facilitate welding operations.

[0023] 2. When the upper pressure block and the side pressure block clamp the sheet metal box, they are fixed on all sides. The sheet metal box will not move during welding, which helps to improve the welding quality. When loosened, it is convenient to take and place the sheet metal box, shortening the processing cycle and improving the processing efficiency.

[0024] 3. The lifting plate slides longitudinally and drives the upper pressure block and the side pressure block to move at the same time, which is convenient for operation. However, after the lifting plate is released, the upper pressure block and the side pressure block cannot drive the lifting plate to move, that is, the position of the sheet metal box can be maintained, which increases the stability of clamping without adding new operating steps. The operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the parts explosion of the utility model;

[0027] Figure 3 It is a schematic diagram of the exploded structure of the clamping assembly of the utility model;

[0028] Figure 4 It is a structural schematic diagram of the lifting plate of the utility model;

[0029] Figure 5 It is a structural schematic diagram of the vertical plate of the utility model;

[0030] Figure 6 It is a structural schematic diagram of the loosened sheet metal box of the utility model;

[0031] Figure 7 It is a schematic structural diagram of the clamping sheet metal box of the utility model.

[0032] In the figure: 11, bottom plate; 111, socket; 12, table top; 13, bearing; 21, vertical plate; 211, inclined support surface; 212, lower block; 213, retaining edge; 214, installation slot; 215, sliding opening; 216, guide hole; 217, lower insert block; 22, top plate; 3, sheet metal box; 4, clamping assembly; 41, upper pressure block; 411, right-angle notch; 412, sliding column; 413, linkage column; 42, side pressure block; 421, side pressure inclined slot; 422, vertical slot maintenance; 43, connecting rod; 44, transfer shaft; 5, lifting plate; 51, locking vertical slot; 52, switching inclined slot; 53, handle. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0034] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0036] In the present invention, unless otherwise specified and limited, the terms "setting", "installation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] See also Figure 1-Figure 7 A sheet metal box welding fixture includes a tabletop 12, a bearing 13 arranged at the center of the upper end of the tabletop 12, a base plate 11 arranged on the bearing 13, two vertical plates 21 symmetrically arranged on the upper end of the base plate 11, and a top plate 22 arranged on the upper ends of the two vertical plates 21; two sockets 111 are arranged on the upper end of the base plate 11; a lower plug block 217 is arranged at the lower end of the vertical plate 21; the lower plug block 217 is located in the corresponding socket 111.

[0038] A clamping assembly 4 is respectively provided on each of the vertical plates 21; the clamping assembly 4 includes a side pressure block 42 horizontally slidably connected to the vertical plate 21, an upper pressure block 41 longitudinally slidably connected to the vertical plate 21 and transmission connected to the side pressure block 42, two connecting rods 43 rotatably connected to each other at one end, and a rotating shaft 44 rotatably connected to the two connecting rods 43; the other end of one connecting rod 43 is rotatably connected to the upper pressure block 41, and the other end of the other connecting rod 43 is rotatably connected to the lower end of the top plate 22; the rotation axes of the connecting rods 43 are parallel to each other.

[0039] A lifting plate 5 is longitudinally slidably connected between the two vertical plates 21; two first combination grooves are symmetrically arranged on the lifting plate 5 and are respectively slidably connected to the corresponding transfer shafts 44; the first combination groove includes a longitudinally arranged locking vertical groove 51 and an obliquely arranged switching inclined groove 52 located at the lower end of the locking vertical groove 51; a handle 53 is arranged at the front end of the lifting plate 5.

[0040] A sliding column 412 is provided at the lower end of the upper pressure block 41; a linkage column 413 is provided at the lower part of the outer wall of the sliding column 412; the linkage column 413 is perpendicular to the sliding column 412; a second combination groove is provided on the side pressure block 42 and is slidably connected to the linkage column 413; the second combination groove includes an inclined side pressure inclined groove 421 and a vertically arranged retaining vertical groove 422 located at the lower end of the side pressure inclined groove 421.

[0041] The vertical plate 21 is provided with an inclined support surface 211, the angle between the inclined support surface 211 and the horizontal plane is 60 degrees. The lower end of the inclined support surface 211 is provided with a lower stopper 212; the lower end of the upper pressing block 41 is provided with a right-angle notch 411.

[0042] The upper end of the vertical plate 21 is provided with a guide hole 216 which is slidably connected to the sliding column 412; the upper end of the vertical plate 21 is provided with a step platform; the top plate 22 is arranged at the upper end of the step platform; the inclined supporting surface 211 is provided with a mounting groove 214 which is connected to the guide hole 216; the linkage column 413 is slidably connected in the mounting groove 214; the side wall of the vertical plate 21 is provided with a sliding opening 215 which is slidably connected to the side pressure block 42; the vertical plate 21 is longitudinally provided with a retaining edge 213 between the two vertical plates 21 and abutted against the lifting plate 5.

[0043] Usage process: Pull the lifting plate 5 upwards, and the lifting plate 5 slides upwards, driving the first combination slot to slide upwards. The transfer shaft 44 slides from the locking vertical slot 51 to the switching inclined slot 52, and then the switching inclined slot 52 continues to slide upwards, driving the two transfer shafts 44 to move toward each other, and the connecting rod 43 rotates, thereby causing the two upper pressure blocks 41 to slide upwards. The sliding of the upper pressure block 41 drives the linkage column 413 to slide upwards, and the linkage column 413 slides from the holding vertical slot 422 into the side pressure inclined slot 421, and then the linkage column 413 drives the side pressure inclined slot 421 to move, thereby causing the two side pressure blocks 42 to move away from each other. Finally, remove the sheet metal box 3 placed on the inclined support surface 211 (such as Figure 6 shown).

[0044] Next, place the unwelded sheet metal box 3 on the inclined supporting surface 211, release the lifting plate 5, and allow the lifting plate 5 and the upper pressure block 41 to slide downward under the action of gravity. The upper pressure block 41 slides downward so that the linkage column 413 drives the side pressure inclined groove 421 to move, thereby causing the two side pressure blocks 42 to move toward each other and clamp the left and right sides of the sheet metal box 3. Subsequently, the linkage column 413 slides from the side pressure inclined groove 421 into the retaining vertical groove 422, and the upper pressure block 41 continues to slide upward so that the right-angle notch 411 and the lower stop block 212 clamp the upper and lower sides of the sheet metal box 3. Finally, the lifting plate 5 continues to slide downward, and the transfer shaft 44 slides into the locking vertical groove 51. At this time, the transfer shaft 44 cannot move between the two vertical plates 21, that is, the positions of the upper pressure block 41 and the side pressure block 42 are fixed (such as Figure 7 shown).

[0045] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A sheet metal box welding fixture, characterized in that: It includes two vertical plates symmetrically arranged on the desktop and two clamping assemblies respectively arranged on the two vertical plates; the clamping assembly includes an upper pressure block and two connecting rods longitudinally slidably connected to the vertical plates; wherein one end of one connecting rod is rotatably connected to the upper pressure block, one end of the other connecting rod is rotatably connected to the upper end of the vertical plate, and the other ends of the two connecting rods are simultaneously rotatably connected to a central shaft; a lifting plate is longitudinally slidably connected to the vertical plates; the lifting plate can selectively lock the central shaft.

2. The clamp according to claim 1, characterized in that: The lifting plate is symmetrically provided with two first combination grooves which are respectively slidably connected with the corresponding central rotating shafts; the first combination groove includes a longitudinally arranged locking vertical groove and an inclined switching groove located at the lower end of the locking vertical groove.

3. The clamp according to claim 1 or 2, characterized in that: The clamping assembly includes a side pressing block horizontally slidably connected to the vertical plate; the side pressing block is transmission-connected to the upper pressing block.

4. The clamp according to claim 3, characterized in that: A linkage column is arranged below the upper pressure block; the axis of the linkage column is perpendicular to the sliding axis of the upper pressure block; a second combination groove is arranged on the side pressure block and is slidably connected to the linkage column; the second combination groove includes an inclined side pressure inclined groove and a vertically arranged retaining vertical groove located at the lower end of the side pressure inclined groove.

5. The clamp according to claim 1 or 2, characterized in that: The vertical plate is provided with an inclined supporting surface; a lower stopper is provided at the lower end of the inclined supporting surface; and a right-angle notch is provided at the lower end of the upper pressing block.

6. The clamp according to claim 5, characterized in that: The included angle between the inclined supporting surface and the horizontal plane is 60°.

7. The clamp according to claim 1 or 2, characterized in that: The upper end of the table top is rotatably connected with a bottom plate; a bearing is arranged between the bottom plate and the table top; and the two vertical plates are respectively arranged at the upper ends of the bottom plate.

8. The clamp according to claim 4, characterized in that: A sliding column slidably connected to the vertical plate is arranged at the lower end of the upper pressing block; and the linkage column is arranged at the lower part of the outer wall of the sliding column.

9. The clamp according to claim 8, characterized in that: The upper end of the vertical plate is provided with a guide hole slidably connected to the sliding column; the side wall of the vertical plate is provided with a mounting groove connected to the guide hole; the linkage column is slidably connected in the mounting groove.

10. The clamp according to claim 1 or 2, characterized in that: A handle is arranged at the front end of the lifting plate.

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