Metal plate welding device

Abstract

The utility model belongs to the technical field of sheet metal welding, and particularly relates to a sheet metal welding device which comprises an operation table and a horizontal supporting plate, and the operation table is provided with a supporting plate moving assembly used for driving the horizontal supporting plate to move front and back and a movable welding assembly used for moving left and right to weld sheet metal parts. A lifting pressing assembly used for pressing a sheet metal part is arranged above the horizontal supporting plate, two through grooves are symmetrically formed in the left end and the right end of the horizontal supporting plate, a centering positioning assembly is arranged in the middle of the horizontal supporting plate and comprises a two-way lead screw, and the two-way lead screw is rotationally installed in the middle of the horizontal supporting plate through a bearing. Threads at the left end and the right end of the two-way lead screw correspond to the two through grooves correspondingly, the outer sides of the threads at the two ends of the two-way lead screw are sleeved with two connecting blocks in a threaded mode correspondingly, connecting rods are rotationally installed at the top ends of the two connecting blocks in a front-back symmetrical mode, and a first spring is fixedly connected between the two connecting rods on the same connecting block. The ends, away from the connecting blocks, of the connecting rods are in bearing connection with vertical shafts.

Description

Technical Field

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

[0002] Sheet metal is a metal processing technology that uses metal plates such as steel plates, aluminum plates, copper plates, etc. to process through cutting, bending, stamping, welding, etc. to produce parts or components of various shapes and sizes. For example, in the process of welding and forming a box, a sheet metal welding device is needed to weld the sheet metal part as the bottom of the box to one end of the box frame in order to close the opening.

[0003] In the Chinese utility model patent with publication number CN219945044U, a welding auxiliary device for sheet metal processing is provided, which includes an operating table, a displacement mechanism and a welding gun. The operating table has a placement table for placing sheet metal, the operating table has a receiving cavity, the receiving cavity is located on one side of the placement table, the displacement mechanism is arranged in the receiving cavity, the displacement mechanism includes a front-to-back moving component and a longitudinal moving component, the longitudinal moving component is arranged on the front-to-back moving component, and the welding gun is arranged on the longitudinal moving component. The device makes the welding gun always keep on the same horizontal line during the movement process through the cooperation of the front-to-back moving component and the longitudinal moving component, avoiding the situation that the welding quality is affected by the welding offset that may occur in the traditional welding process.

[0004] However, when the above device is used to weld the bottom of the box, it can only weld one side of the box. When welding the other side of the box, it is necessary to manually rotate the box many times to adjust the position, which not only increases the work intensity but also affects the efficiency of sheet metal welding. Therefore, it is urgent to improve the existing sheet metal welding device and provide a sheet metal welding device that is easy to control the rotation and adjustment of the box. Utility Model Content

[0005] The purpose of the utility model is to provide a sheet metal welding device with reasonable design, simple structure and the ability to quickly adjust the direction of a box body in order to solve the problems existing in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A sheet metal welding device comprises an operating table and a horizontal support plate, wherein the operating table is provided with a support plate moving assembly for driving the horizontal support plate to move forward and backward and a moving welding assembly for moving left and right to weld sheet metal parts, a lifting and clamping assembly for clamping sheet metal parts is provided above the horizontal support plate, two through grooves are symmetrically provided inside the left and right ends of the horizontal support plate, a centering positioning assembly is provided in the middle of the horizontal support plate, and the centering positioning assembly comprises a bidirectional screw rod, which is rotatably installed in the middle position of the horizontal support plate through a bearing, the left and right end threads of the bidirectional screw rod respectively correspond to the two through grooves, and the outer sides of the two end threads of the bidirectional screw rod are respectively threadedly sleeved with two connecting blocks, the top ends of the two connecting blocks are symmetrically installed with connecting rods for rotating forward and backward, a first spring is fixedly connected between the two connecting rods on the same connecting block, and the end of the connecting rod away from the connecting block is connected to the vertical axis with a bearing.

[0008] Preferably, a limiting vertical plate is fixedly provided at the upper rear portion of the operating table, and the support plate moving assembly and the moving welding assembly are respectively arranged at the front and rear sides of the limiting vertical plate.

[0009] Preferably, the pallet moving assembly includes guide rods, a moving seat and a drive motor, the two guide rods are symmetrically arranged on the operating table, the rear ends of the two guide rods are installed on the front end of the limiting vertical plate, the front ends of the two guide rods are installed on the front end of the operating table through supports, the left and right ends of the moving seat are respectively slidably sleeved on the outside of the two guide rods, a second spring is fixedly connected between the moving seat and the limiting vertical plate, a drive motor is fixedly provided on the moving seat, and the output end of the drive motor is fixedly connected to the bottom center of the horizontal pallet.

[0010] Preferably, the number of the second springs is two, and the two second springs are respectively sleeved on the outer sides of the rear ends of the two guide rods.

[0011] Preferably, the mobile welding assembly includes a servo motor, a first screw rod, a movable block, a first electric push rod and a welding gun. The servo motor is fixedly arranged at the upper rear right end of the operating table. The output end of the servo motor is fixedly connected to the first screw rod. The movable block is threadedly sleeved on the outer side of the first screw rod. The rear end outer wall of the movable block is fixedly provided with the first electric push rod, and the welding gun is installed on the top end of the first electric push rod.

[0012] Preferably, the lifting and clamping assembly includes a cross bar, a steel ball and a second electric push rod, a steel ball is movably installed in the middle of the cross bar, and two second electric push rods are symmetrically fixed above the left and right ends of the operating table, and the telescopic ends of the two second electric push rods are respectively fixedly connected to the left and right ends of the cross bar.

[0013] Preferably, rollers are rotatably mounted inside the four right angles of the horizontal support plate.

[0014] Preferably, the two connecting blocks are respectively guided and slidably located in the two through grooves, and the two connecting blocks form a reverse sliding structure through a bidirectional screw rod.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] In the scheme of the utility model, the rotation of the first screw rod can be controlled by the servo motor, so as to facilitate the control of the movable block to drive the welding gun to slide stably in the horizontal direction for welding, and the height position of the welding gun can be conveniently adjusted by the first electric push rod. Moreover, when welding sheet metal, the cross bar can be controlled to move vertically downward by the second electric push rod, and the sheet metal parts used to be welded into the bottom of the box can be pressed by the movable steel ball located in the middle of the cross bar, thereby ensuring tight and stable welding between the sheet metal parts.

[0017] The utility model can control the two connecting blocks to move in opposite directions and away from each other through the bidirectional screw rod. When the vertical axis collides with the left and right side walls of the box frame, as the connecting blocks continue to move, the connecting rod can be pressed to rotate and open, and the vertical axis can be pushed to move until it collides with the front and rear side walls of the box frame, thereby realizing the center positioning of the box frame. By turning on the driving motor, the horizontal support plate can also be controlled to drive the center positioning component and the box frame to rotate and adjust by 90 degrees, and the moving seat and the horizontal support plate can move stably along the guide rod, so that the distance between the surface of the sheet metal to be welded and the welding gun is always consistent. Compared with the comparative documents, the device can realize automatic steering of the sheet metal parts, facilitate and quickly carry out all-round welding, effectively improve welding efficiency, and make work easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions, and the following description is made with respect to the drawings:

[0019] Figure 1 This is a three-dimensional front view structural diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional rear view structure of the utility model;

[0021] Figure 3 It is a left-side structural schematic diagram of the guide rod and the movable seat of the utility model;

[0022] Figure 4 This is a schematic diagram of the overall top view structure of the centering positioning component of the utility model;

[0023] Figure 5 It is a schematic diagram of the top view of the centering positioning component of the utility model in working state.

[0024] In the figure:

[0025] 1. Operating table; 2. Limiting vertical plate; 3. Mobile welding assembly; 31. Servo motor; 32. First screw rod; 33. Movable block; 34. First electric push rod; 35. Welding gun; 4. Lifting and clamping assembly; 41. Cross bar; 42. Steel ball; 43. Second electric push rod; 5. Horizontal support plate; 6. Through slot; 7. Roller; 8. Centering assembly; 81. Bidirectional screw rod; 82. Connecting block; 83. Connecting rod; 84. First spring; 85. Vertical axis; 9. Guide rod; 10. Moving seat; 11. Second spring; 12. Driving motor. DETAILED DESCRIPTION

[0026] The embodiments described below are only some of the embodiments of the present invention and do not represent all the embodiments consistent with the present invention. Now, in conjunction with the accompanying drawings, the exemplary embodiments are described as follows:

[0027] like Figure 1-5 As shown in Figure 1, the sheet metal welding device of the utility model comprises an operating table 1 and a horizontal support plate 5. The operating table 1 is provided with a support plate moving assembly for driving the horizontal support plate 5 to move forward and backward and a moving welding assembly 3 for moving left and right to weld sheet metal parts. A lifting and clamping assembly 4 for clamping sheet metal parts is provided above the horizontal support plate 5. Two through grooves 6 are symmetrically provided inside the left and right ends of the horizontal support plate 5. A centering positioning assembly 8 is provided in the middle of the horizontal support plate 5. The centering positioning assembly 8 comprises a bidirectional screw rod 81, which is rotatably installed in the middle position of the horizontal support plate 5 through a bearing. The left and right end threads of the bidirectional screw rod 81 correspond to the two through grooves 6 respectively, and the outer sides of the two end threads of the bidirectional screw rod 81 are respectively threadedly sleeved with two connecting blocks 82. The top ends of the two connecting blocks 82 are both symmetrically rotatably installed with connecting rods 83. A first spring 84 is fixedly connected between the two connecting rods 83 on the same connecting block 82, and a vertical shaft 85 is connected to the bearing at one end of the connecting rod 83 away from the connecting block 82.

[0028] In this embodiment, the two connection blocks 82 are controlled to slide in opposite directions by the bidirectional screw rod 81 and are opened by the rotation of the connecting rod 83. The box frame can be centered by using multiple vertical axes 85 to facilitate sheet metal welding.

[0029] As a preferred embodiment, on the basis of the above structure, further, a limiting vertical plate 2 is fixedly provided on the upper rear of the operating table 1, and the pallet moving assembly and the moving welding assembly 3 are respectively arranged on the front and rear sides of the limiting vertical plate 2.

[0030] As a preferred embodiment, on the basis of the above structure, preferably, the pallet moving assembly includes a guide rod 9, a moving seat 10 and a drive motor 12, the two guide rods 9 are symmetrically arranged on the operating table 1, the rear ends of the two guide rods 9 are installed on the front end of the limiting vertical plate 2, the front ends of the two guide rods 9 are installed on the front end of the operating table 1 through supports, the left and right ends of the moving seat 10 are respectively slidably mounted on the outside of the two guide rods 9, a second spring 11 is fixedly connected between the moving seat 10 and the limiting vertical plate 2, a drive motor 12 is fixedly provided on the moving seat 10, and the output end of the drive motor 12 is fixedly connected to the bottom center of the horizontal pallet 5.

[0031] On the basis of the above structure, preferably, the number of the second springs 11 is two, and the two second springs 11 are respectively sleeved on the outer sides of the rear ends of the two guide rods 9 .

[0032] As a preferred embodiment, on the basis of the above structure, the mobile welding assembly 3 further includes a servo motor 31, a first screw rod 32, a movable block 33, a first electric push rod 34 and a welding gun 35. The servo motor 31 is fixedly arranged at the upper rear right end of the operating table 1, and the output end of the servo motor 31 is fixedly connected to the first screw rod 32. The outer side of the first screw rod 32 is threadedly sleeved with the movable block 33. The rear end outer wall of the movable block 33 is fixedly provided with the first electric push rod 34, and the top of the first electric push rod 34 is installed with a welding gun 35.

[0033] In this embodiment, the servo motor 31 can control the forward and reverse rotation of the first screw rod 32, thereby controlling the movable block 33 to drive the welding gun 35 to translate in the horizontal direction to facilitate sheet metal welding, and the setting of the first electric push rod 34 can facilitate the convenient adjustment of the height position of the welding gun 35.

[0034] As a preferred embodiment, on the basis of the above structure, the lifting and clamping assembly 4 further includes a cross bar 41, a steel ball 42 and a second electric push rod 43. The steel ball 42 is movably installed in the middle of the cross bar 41, and the two second electric push rods 43 are symmetrically fixed above the left and right ends of the operating table 1. The telescopic ends of the two second electric push rods 43 are fixedly connected to the left and right ends of the cross bar 41 respectively.

[0035] In this embodiment, by contracting the second electric push rod 43, the cross bar 41 can be controlled to drive the steel ball 42 to move vertically downward, so that the sheet metal parts used for welding into the bottom of the box can be compressed to ensure tight and stable welding between the sheet metal parts.

[0036] As a preferred embodiment, on the basis of the above structure, further, rollers 7 are rotatably installed inside the four right angles of the horizontal support plate 5 .

[0037] In this embodiment, by providing the roller 7, severe wear between the horizontal support plate 5 and the limiting vertical plate 2 is avoided when the horizontal support plate 5 is rotated and adjusted, thereby facilitating smooth and stable steering adjustment of the horizontal support plate 5.

[0038] As a preferred embodiment, on the basis of the above structure, further, the left and right end threads of the bidirectional screw rod 81 are respectively located under the two through grooves 6, and the two connecting blocks 82 are respectively guided and slid in the two through grooves 6, and the two connecting blocks 82 form a reverse sliding structure through the bidirectional screw rod 81.

[0039] In this embodiment, the through slot 6 provided inside the horizontal support plate 5 can improve the stability of the connecting block 82 during the sliding adjustment process.

[0040] The working principle of the utility model is as follows:

[0041] When in use, first place the box frame constituting the box body on top of the horizontal support plate 5, then manually rotate the bidirectional screw rod 81 to control the two connecting blocks 82 to move synchronously along the two through slots 6 in directions away from each other. When the vertical shaft 85 contacts the inner walls at the left and right ends of the box frame, as the connecting block 82 continues to move, the two connecting rods 83 above the connecting block 82 can be pressed and rotated to open, so that the vertical shaft 85 can be pushed to move close to the inner wall of the box until it contacts the front and rear side walls of the box frame, so as to achieve the centering of the box frame, and then the welding parts can be placed on the box frame. The sheet metal parts that form the bottom of the box are placed on the top of the box frame, and the second electric push rod 43 is started to control the cross bar 41 to move vertically downward, and the steel ball 42 is used to press the sheet metal parts of the bottom of the box to ensure the close connection between the bottom of the box and the box frame. Then, the first electric push rod 34 is used to control the lifting and adjustment of the welding gun 35, so that the welding gun 35 is aligned with the connection between the box frame and the bottom of the box, and welding can be started. The servo motor 31 is started, and the first screw rod 32 is used to rotate and control the movable block 33 to drive the welding gun 35 to slowly and uniformly move horizontally, so that the box body on this side can be welded;

[0042] When the welding of the side of the box body facing the welding gun 35 is completed, it is only necessary to turn on the driving motor 12 to control the horizontal support plate 5 to drive the centering positioning component 8 and the box body to rotate and adjust by 90 degrees. In this process, the horizontal support plate 5 is rotated around the rollers 7 to improve the smoothness of the rotation of the horizontal support plate 5, and the horizontal support plate 5 and the moving seat 10 can also slide backward along the guide rod 9. The second spring 11 is set to make the roller 7 always contact with the outer surface of the limit vertical plate 2, so as to make the distance between the surface of the box body to be welded and the welding gun 35 always consistent;

[0043] In summary, compared with the comparative documents, this device not only facilitates the centering of sheet metal parts, but also can realize automatic steering of sheet metal parts, making it convenient and faster to perform all-round welding of sheet metal parts, which can effectively improve welding efficiency and make work easier.

[0044] The above are only preferred specific embodiments of the utility model and are not intended to limit the protection scope of the utility model; any equivalent changes, modifications, substitutions and variations made by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the protection scope determined by the claims.

Claims

1. A sheet metal welding device, comprising an operating table (1) and a horizontal support plate (5), wherein the operating table (1) is provided with a support plate moving assembly for driving the horizontal support plate (5) to move forward and backward and a moving welding assembly (3) for moving left and right to perform sheet metal welding, characterized in that: A lifting and clamping assembly (4) for clamping the sheet metal is provided above the horizontal support plate (5). Two through grooves (6) are symmetrically provided inside the left and right ends of the horizontal support plate (5). A centering positioning assembly (8) is provided in the middle of the horizontal support plate (5). The centering positioning assembly (8) comprises a bidirectional screw rod (81). The bidirectional screw rod (81) is rotatably mounted at the middle position of the horizontal support plate (5) through a bearing. The left and right ends of the bidirectional screw rod (81) have screw threads corresponding to the two through grooves (6) respectively. Two connecting blocks (82) are respectively threadedly sleeved on the outer sides of the two end screw threads of the bidirectional screw rod (81). Connecting rods (83) are symmetrically rotatably mounted on the top ends of the two connecting blocks (82). A first spring (84) is fixedly connected between the two connecting rods (83) on the same connecting block (82). The end of the connecting rod (83) away from the connecting block (82) is bearing-connected to a vertical shaft (85).

2. A sheet metal welding device according to claim 1, characterized in that: A limiting vertical plate (2) is fixedly provided at the upper rear portion of the operating table (1), and a support plate moving assembly and a moving welding assembly (3) are respectively arranged at the front and rear sides of the limiting vertical plate (2).

3. A sheet metal welding device according to claim 2, characterized in that: The support plate moving assembly comprises a guide rod (9), a moving seat (10) and a driving motor (12); the two guide rods (9) are symmetrically arranged on the operating table (1); the rear ends of the two guide rods (9) are both mounted on the front end of the limiting vertical plate (2); the front ends of the two guide rods (9) are both mounted on the front end of the operating table (1) through a support; the left and right ends of the moving seat (10) are respectively slidably sleeved on the outer sides of the two guide rods (9); a second spring (11) is fixedly connected between the moving seat (10) and the limiting vertical plate (2); a driving motor (12) is fixedly arranged on the moving seat (10); and the output end of the driving motor (12) is fixedly connected to the center of the bottom end of the horizontal support plate (5).

4. A sheet metal welding device according to claim 3, characterized in that: The number of the second springs (11) is two, and the two second springs (11) are respectively sleeved on the outer sides of the rear ends of the two guide rods (9).

5. The sheet metal welding device according to claim 1, characterized in that: The movable welding assembly (3) comprises a servo motor (31), a first screw rod (32), a movable block (33), a first electric push rod (34) and a welding gun (35); the servo motor (31) is fixedly arranged at the upper rear right end of the operating table (1); the output end of the servo motor (31) is fixedly connected to the first screw rod (32); the outer side of the first screw rod (32) is threadedly sleeved with the movable block (33); the rear end outer wall of the movable block (33) is fixedly provided with the first electric push rod (34); and the top end of the first electric push rod (34) is equipped with the welding gun (35).

6. A sheet metal welding device according to claim 1, characterized in that: The lifting and clamping assembly (4) comprises a cross bar (41), a steel ball (42) and a second electric push rod (43); the steel ball (42) is movably mounted in the middle of the cross bar (41); two second electric push rods (43) are symmetrically fixedly arranged above the left and right ends of the operating table (1); and the telescopic ends of the two second electric push rods (43) are respectively fixedly connected to the left and right ends of the cross bar (41).

7. The sheet metal welding device according to claim 1, characterized in that: Rollers (7) are rotatably mounted inside the four right angles of the horizontal support plate (5).

8. The sheet metal welding device according to claim 1, characterized in that: The two connecting blocks (82) are respectively guided and slidably located in the two through grooves (6), and the two connecting blocks (82) form a reverse sliding structure through a bidirectional screw rod (81).

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