Turnover welding fixture

Abstract

The utility model relates to the technical field of clamps, in particular to an overturning welding clamp which comprises two moving plates, rotating shafts are rotationally connected to the moving plates through bearing seats, mounting plates are fixedly connected to the opposite ends of the two rotating shafts, and a clamp used for clamping a workpiece is detachably mounted between the two mounting plates. A base is arranged below the movable plate, a lifting part is arranged between the movable plate and the base and used for pushing the movable plate to move up and down, the device further comprises a movable driving part arranged on the movable plate, and a fixed driving part used for driving the movable driving part to rotate is arranged on the base. According to the utility model, through the cooperation of the fixed driving part and the movable driving part, the fixed driving part can always drive the moved rotating shaft and the clamp to rotate, so that the moved workpiece can be always driven to rotate, the moved workpiece can be conveniently overturned, and convenience is provided for welding different positions on the workpiece.

Description

A flip welding fixture Technical Field

[0001] This utility model relates to the field of fixture technology, and in particular to a flipping welding fixture. Background Technology

[0002] Welding fixtures are specialized tools used to fix and position workpieces during the welding process, ensuring welding accuracy, improving efficiency, and reducing deformation. They are widely used in the automotive, aerospace, and machinery manufacturing industries.

[0003] Existing flip welding fixtures, such as the Chinese patent application number CN202223589473.9, use a linear cylinder to drive the worktable to flip, making the welding angle more diverse and effectively solving the problem of welding dead angles.

[0004] Although the aforementioned comparative patent can achieve the flipping of the worktable and the locking of the flipped worktable, it can only flip the worktable at a certain height position and cannot flip the worktable at different height positions. That is, it cannot adjust the height of the worktable or flip the worktable after the height is adjusted, which reduces the flipping range and cannot adapt to actual welding needs, such as welding equipment of different heights. Summary of the Invention

[0005] In view of this, the purpose of this utility model is to propose a flipping welding fixture to solve the problem that existing welding fixtures cannot adjust the height of the clamped workpiece and are also difficult to flip the workpiece after the height is adjusted.

[0006] To achieve the above objectives, this utility model provides a flip welding fixture, comprising two movable plates, wherein a rotating shaft is rotatably connected to the movable plates via a bearing seat, and a mounting plate is fixedly connected to the opposite ends of the two rotating shafts, and a clamp for clamping the workpiece is detachably installed between the two mounting plates. A base is provided below the movable plates, and a lifting part is provided between the movable plates and the base, the lifting part being used to push the movable plates to move up and down.

[0007] It also includes a moving drive unit disposed on the moving plate, and a fixed drive unit disposed on the base for driving the moving drive unit to rotate. When the lifting unit pushes the moving plate to move, the moving drive unit can move along with the moving plate so that the fixed drive unit can always drive the moving drive unit and the rotating shaft to rotate after the movement.

[0008] Preferably, the lifting unit includes a cylinder fixedly connected to the base, the top end of the cylinder being connected to a movable plate, and a limiting part being provided between the movable plate and the base.

[0009] Preferably, the limiting part includes a sleeve fixedly connected to the base, a sleeve rod slidably connected inside the sleeve, and the top end of the sleeve rod is connected to the moving plate.

[0010] Preferably, the drive unit includes a worm gear fixedly sleeved on a rotating shaft, and a through hole is provided on the movable plate. A rotating rod is rotatably connected to the through hole through a bearing, and both ends of the rotating rod extend out of the movable plate. A worm gear meshing with the worm gear is fixedly connected to the top end of the rotating rod, and a limit strip is fixedly connected to the rotating rod, with the limit strip located below the movable plate.

[0011] Preferably, the fixed drive unit includes a drive motor fixedly installed on the base, and the output end of the drive motor is fixedly connected to a rotating cylinder for inserting a rotating rod. The inner wall of the rotating cylinder is provided with a limiting groove that matches the limiting strip.

[0012] Preferably, a limiting block one perpendicular to the moving plate is detachably installed on the mounting plate, and a limiting block two parallel to the moving plate is detachably installed on the mounting plate. Two stops are installed on the moving plate, and the two stops are symmetrically distributed on both sides of the rotating shaft, and the limiting block two is in contact with one of the stops.

[0013] The beneficial effects of this utility model are as follows: The flip welding fixture provided by this utility model can change the height of the moving plate and the fixture by setting the lifting part, thereby changing the height of the clamped workpiece, which is convenient to adapt to different welding heights. In addition, by setting the moving drive part and the fixed drive part, the moving drive part can move together with the moving plate. Since the moving drive part drives the rotating shaft and the fixture to rotate, while the fixed drive part is located on the base and does not move, the fixed drive part can always drive the rotating shaft and the fixture to rotate after the movement, thereby always driving the workpiece to rotate after the movement, which is convenient for flipping the workpiece after the movement, and provides convenience for welding different positions on the workpiece. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 is a schematic diagram of the structure of this utility model;

[0016] Figure 2 is a structural schematic diagram of the fixed drive unit and the moving drive unit of this utility model.

[0017] In the diagram: 1. Moving plate; 2. Rotating shaft; 3. Mounting plate; 4. Fixture; 5. Base; 6. Lifting part; 61. Cylinder; 62. Sleeve; 63. Sleeve rod; 7. Dynamic drive part; 71. Worm gear; 72. Rotating rod; 73. Worm; 74. Limiting bar; 8. Fixed drive part; 81. Drive motor; 82. Rotating cylinder; 9. Limiting block one; 10. Limiting block two; 11. Stop block. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0019] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] As shown in Figures 1 and 2, a flip welding fixture includes two movable plates 1. A rotating shaft 2 is rotatably connected to the movable plate 1 via a bearing seat. Mounting plates 3 are fixedly connected to the opposite ends of the two rotating shafts 2. A clamp 4 for clamping the workpiece is detachably installed between the two mounting plates 3. The clamp 4 can be installed on the mounting plate 3 by bolts and nuts. A base 5 is provided below the movable plate 1. A lifting part 6 is provided between the movable plate 1 and the base 5. The lifting part 6 is used to push the movable plate 1 to move up and down.

[0021] It also includes a moving drive unit 7 installed on the moving plate 1, and a fixed drive unit 8 installed on the base 5 for driving the moving drive unit 7 to rotate. When the lifting unit 6 pushes the moving plate 1 to move, the moving drive unit 7 can move along with the moving plate 1, so that the fixed drive unit 8 can always drive the moving drive unit 7 and the rotating shaft 2 to rotate after the movement.

[0022] In a preferred embodiment of the present invention, the lifting part 6 includes a cylinder 61 fixedly connected to the base 5. The top end of the cylinder 61 is connected to the movable plate 1, and a limiting part is provided between the movable plate 1 and the base 5. The limiting part includes a sleeve 62 fixedly connected to the base 5. A sleeve rod 63 is slidably connected inside the sleeve 62, and the top end of the sleeve rod 63 is connected to the movable plate 1.

[0023] When it is necessary to adjust the height of the fixture 4 and the workpiece being clamped according to the actual situation, the cylinder 61 is activated. The cylinder 61 pushes the moving plate 1 to move, thereby driving the fixture 4 and the workpiece being clamped to move. During a certain process, the sleeve 62 and the sleeve rod 63 limit the movement of the sleeve rod 63, making the movement of the moving plate 1 more stable and smooth.

[0024] In another preferred embodiment of the present invention, the drive unit 7 includes a worm gear 71 fixedly sleeved on the rotating shaft 2, and a through hole is provided on the moving plate 1. A rotating rod 72 is rotatably connected to the through hole through a bearing. Both ends of the rotating rod 72 extend out of the moving plate 1. A worm 73 that meshes with the worm gear 71 is fixedly connected to the top end of the rotating rod 72. A limiting strip 74 is fixedly connected to the rotating rod 72, and the limiting strip 74 is located below the moving plate 1.

[0025] The movable plate 1 can move under the push of the cylinder 61. Since the worm 73 is rotatably connected to the movable plate 1, the worm 73 will move with the movable plate 1. When the fixed drive unit 8 drives the rotating rod 72 to rotate, it will drive the worm 73 to rotate. Since the worm 73 meshes with the worm wheel 71, it will drive the worm wheel 71 to rotate, thereby driving the rotating shaft 2 and the clamp 4 to rotate, so that the clamped workpiece can be flipped. Since the worm 73 and the worm wheel 71 have a self-locking function, they can be locked in time after the rotation is completed.

[0026] In another preferred embodiment of the present invention, the fixed drive unit 8 includes a drive motor 81 fixedly installed on the base 5. The output end of the drive motor 81 is fixedly connected to a rotating cylinder 82 into which the rotating rod 72 is inserted. The inner wall of the rotating cylinder 82 is provided with a limiting groove that is adapted to the limiting strip 74.

[0027] The drive unit 81 is an integrated structure of the electric motor and the reducer. Since the drive unit 81 is mounted on the base 5, it will not move with the moving plate 1. Because the rotating rod 72 is inserted into the rotating cylinder 82, and the limiting strip 74 on the rotating rod 72 cooperates with the limiting groove in the rotating cylinder 82, when the output end of the drive unit 81 drives the rotating cylinder 82 to rotate, the rotating rod 72 will rotate under the transmission action of the limiting groove and the limiting strip 74, which will drive the worm gear 73 to rotate. Since the rotating rod 72 is slidably inserted into the rotating cylinder 82, the moving plate 1 can drive the rotating rod 72 to move within the rotating cylinder 82 when it moves. That is, the rotating cylinder 82 will not hinder the movement of the rotating rod 72. In order to reduce the friction generated by the movement of the rotating rod 72 within the rotating cylinder 82, rolling balls can be rolled on each side of the limiting strip 74. The rolling balls convert the sliding friction between the limiting strip 74 and the limiting groove into rolling friction.

[0028] It should be noted that a limiting block 9 perpendicular to the moving plate 1 is detachably installed on the mounting plate 3, and a limiting block 10 parallel to the moving plate 1 is detachably installed on the mounting plate 3. Two stops 11 are installed on the moving plate 1, and the two stops 11 are symmetrically distributed on both sides of the rotating shaft 2, and the limiting block 10 is in contact with one of the stops 11.

[0029] When the drive motor 81 drives the rotating shaft 2 to rotate the mounting plate 3 clockwise, when the first limit block 9 on the mounting plate 3 contacts the stop block 11, the mounting plate 3 and the clamped workpiece rotate 90°. When the first limit block 9 is removed, when the second limit block 10 rotates clockwise to contact the stop block 11, the mounting plate 3 and the clamped workpiece rotate 180°. Thus, through the setting of the first limit block 9, the second limit block 10 and the stop block 11, the degree of rotation of the workpiece can be directly observed.

[0030] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0031] The embodiments of this utility model are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flip welding fixture, comprising two movable plates (1), wherein a rotating shaft (2) is rotatably connected to the movable plate (1) via a bearing seat, and a mounting plate (3) is fixedly connected to the opposite ends of the two rotating shafts (2), and a fixture (4) for clamping a workpiece is detachably mounted between the two mounting plates (3), characterized in that, A base (5) is provided below the movable plate (1), and a lifting part (6) is provided between the movable plate (1) and the base (5). The lifting part (6) is used to push the movable plate (1) to move up and down. It also includes a moving drive part (7) provided on the movable plate (1). A fixed drive part (8) is provided on the base (5) for driving the moving drive part (7) to rotate. When the lifting part (6) pushes the movable plate (1) to move, the moving drive part (7) can move with the movable plate (1) so that the fixed drive part (8) can always drive the moving drive part (7) and the rotating shaft (2) to rotate after the movement.

2. The flipping welding fixture according to claim 1, characterized in that, The lifting part (6) includes a cylinder (61) fixedly connected to the base (5). The top of the cylinder (61) is connected to the moving plate (1), and a limiting part is provided between the moving plate (1) and the base (5).

3. The flipping welding fixture according to claim 2, characterized in that, The limiting part includes a sleeve (62) fixedly connected to the base (5), and a sleeve rod (63) is slidably connected inside the sleeve (62), and the top end of the sleeve rod (63) is connected to the moving plate (1).

4. The flipping welding fixture according to claim 1, characterized in that, The drive unit (7) includes a worm gear (71) fixedly sleeved on the rotating shaft (2), and a through hole is provided on the moving plate (1). A rotating rod (72) is rotatably connected in the through hole through a bearing. Both ends of the rotating rod (72) protrude out of the moving plate (1). A worm (73) meshing with the worm gear (71) is fixedly connected to the top of the rotating rod (72). A limit strip (74) is fixedly connected to the rotating rod (72), and the limit strip (74) is located below the moving plate (1).

5. A flipping welding fixture according to claim 4, characterized in that, The fixed drive unit (8) includes a drive motor (81) fixedly installed on the base (5). The output end of the drive motor (81) is fixedly connected to a rotating cylinder (82) into which the rotating rod (72) is inserted. The inner wall of the rotating cylinder (82) is provided with a limiting groove that is compatible with the limiting strip (74).

6. A flipping welding fixture according to claim 1, characterized in that, The mounting plate (3) is detachably mounted with a limiting block 1 (9) perpendicular to the moving plate (1). The mounting plate (3) is detachably mounted with a limiting block 2 (10) parallel to the moving plate (1). The moving plate (1) is mounted with two stops (11), which are symmetrically distributed on both sides of the rotating shaft (2). The limiting block 2 (10) is in contact with one of the stops (11).

Images