Special clamp for automatic laser welding machine

Abstract

The utility model discloses a special fixture for an automatic laser welding machine, which belongs to the technical field of welding fixtures and comprises a U-shaped plate and a clamping mechanism, a motor is fixedly mounted on one side of the U-shaped plate, the output end of the motor is fixedly connected with a fixing frame, a rotating plate is rotatably arranged on the front end face of the fixing frame, and a clamping mechanism is fixedly mounted on the rotating plate. A fixing groove is formed in the surface of the fixing frame in a penetrating mode, a supporting plate is fixedly connected to the inner wall of the fixing groove, and a clamping mechanism is arranged on one side of the supporting plate. Through the structural design of the fixing groove, the rotating plate, the supporting plate and the clamping mechanism, the to-be-welded part can be effectively fixed, so that the position deviation of the to-be-welded part during welding can be effectively avoided, the welding accuracy is improved, the to-be-welded part is fixed through the elasticity of a spring, and the welding quality is improved. However, due to the fact that the spring has certain flexibility, the position of the to-be-welded part is prone to deviation when the to-be-welded part is welded, and the welding accuracy is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of welding fixtures, in particular to a special fixture for an automatic laser welding machine. Background Art

[0002] Laser welding uses high-energy laser pulses to locally heat the material in a tiny area. The energy of laser radiation diffuses into the interior of the material through heat conduction, melting the material to form a specific molten pool. It is a new type of welding method, mainly for the welding of thin-walled materials and precision parts. It can realize spot welding, butt welding, stack welding, sealing welding, etc. It has a high aspect ratio, small weld width, small heat-affected zone, small deformation, fast welding speed, smooth and beautiful weld, no post-welding treatment or only simple treatment, high weld quality, no pores, can be precisely controlled, small focused light spot, high positioning accuracy, and easy automation.

[0003] After searching, a Chinese patent with patent announcement number CN214024281U discloses a clamping tool for a laser welding machine, which solves the problems of simple structure and inability to clamp and adjust the welding fixtures currently on the market. The clamping tool comprises a protective frame, a support plate is slidably connected between the two sides of the inner cavity of the protective frame, an adjustment frame is fixedly connected to the top of the support plate, a fixed frame is fixedly connected between the two sides of the inner cavity of the adjustment frame, and bayonet holes are equidistantly provided on the surface of the fixed frame. Moving blocks are slidably connected to both sides of the surface of the fixed frame, a placement plate is fixedly connected to the top of the two moving blocks, and a clamping frame is fixedly connected to the top of the two placement plates. The clamping tool for the laser welding machine achieves the purpose of welding workpieces of different angles and heights, improves work efficiency, reduces production costs, and has high flexibility and a wide range of applications. It is applied to various workpieces to be welded, which greatly reduces manpower and material resources. It has good application prospects and is worthy of promotion.

[0004] However, the above design still has some shortcomings. In the above design, the workpiece to be welded is fixed by the elasticity of the spring. However, since the spring has a certain elasticity, positional deviation is likely to occur during welding of the workpiece to be welded, thereby reducing the accuracy of welding. Utility Model Content

[0005] The purpose of the utility model is to provide a special fixture for an automatic laser welding machine to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a special fixture for an automatic laser welding machine, comprising a U-shaped plate and a clamping mechanism, a motor is fixedly installed on one side of the U-shaped plate, an output end of the motor is fixedly connected to a fixing frame, a rotating plate is rotatably provided on the front end surface of the fixing frame, a fixing groove is penetrated through the surface of the fixing frame, a support plate is fixedly connected to the inner wall of the fixing groove, and a clamping mechanism is provided on one side of the support plate.

[0007] As a further solution of the utility model: the clamping mechanism includes a worm, and the front end of the worm is fixedly connected to the rear end of the rotating plate, and the bottom of the worm is transmission-connected to a worm wheel.

[0008] As a further solution of the utility model: a rotating rod is fixedly connected inside the worm wheel, and a screw rod is fixedly connected on the other side of the rotating rod.

[0009] As a further solution of the utility model: the outer wall of the screw is threadedly connected to a moving block, the other side of the moving block is fixedly connected to a transmission rod, and one end of the transmission rod extends to the inside of the fixing groove.

[0010] As a further solution of the utility model: a clamping plate is fixedly connected to the other side of the transmission rod.

[0011] As a further solution of the utility model: a telescopic cylinder is fixedly installed inside the lower end of the U-shaped plate, and the output end of the telescopic cylinder is fixedly connected to the bottom plate.

[0012] The utility model has the following beneficial effects:

[0013] (1) Through the structural design of the fixing groove, the rotating plate, the supporting plate and the clamping mechanism, the workpiece to be welded can be effectively fixed, thereby effectively avoiding the position deviation of the workpiece to be welded during welding, thereby improving the welding accuracy, and solving the problem that the workpiece to be welded is fixed by the elasticity of the spring, but the spring has a certain elasticity, and the position deviation of the workpiece to be welded is easy to occur during welding, thereby reducing the welding accuracy;

[0014] (2) By setting a fixed frame, a bottom plate, a motor and a telescopic cylinder, when it is necessary to weld the back side of the workpiece to be welded, the fixed frame can be driven to rotate through the output end of the motor, and the rotation of the fixed frame drives the welding workpiece in the fixed groove to rotate. When the fixed frame rotates to a horizontal position, the motor is turned off, thereby realizing welding on the back side of the workpiece to be welded. At the same time, the U-shaped plate can be driven to move in a direction away from or close to the bottom plate through the output end of the telescopic cylinder, and the movement of the U-shaped plate drives the workpiece to be welded in the fixed frame to move. By facilitating the adjustment of the height position of the workpiece to be welded, it is more convenient for welders to carry out welding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional partial schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the partial internal structure of the main view of the utility model;

[0017] Figure 3It is a schematic diagram of the enlarged local structure of point A of the present invention.

[0018] In the figure: 1. fixed frame; 2. fixed groove; 3. bottom plate; 4. motor; 5. rotating plate; 6. U-shaped plate; 7. support plate; 8. telescopic cylinder; 9. clamping mechanism; 901. clamping plate; 902. transmission rod; 903. screw rod; 904. worm; 905. rotating rod; 906. worm wheel; 907. moving block. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0021] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0022] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1-3The utility model provides an embodiment: a special fixture for an automatic laser welding machine, comprising a U-shaped plate 6 and a clamping mechanism 9, a telescopic cylinder 8 is fixedly installed inside the lower end of the U-shaped plate 6, the output end of the telescopic cylinder 8 is fixedly connected to a bottom plate 3, a motor 4 is fixedly installed on one side of the U-shaped plate 6, and the output end of the motor 4 is fixedly connected to a fixed frame 1;

[0025] Specifically, Figure 1 and Figure 2 As shown, when in use, when it is necessary to weld the back side of the workpiece to be welded, the fixed frame 1 can be driven to rotate through the output end of the motor 4, and the rotation of the fixed frame 1 drives the welding workpiece in the fixed groove 2 to rotate, and when the fixed frame 1 rotates to a horizontal position, the motor 4 is turned off, thereby realizing welding on the back side of the workpiece to be welded, and at the same time, the U-shaped plate 6 can be driven by the output end of the telescopic cylinder 8 to move in a direction away from or close to the bottom plate 3, and the movement of the U-shaped plate 6 drives the workpiece to be welded in the fixed frame 1 to move, so that the height position of the workpiece to be welded can be adjusted easily, thereby making it more convenient for welders to carry out welding work.

[0026] A rotating plate 5 is rotatably provided on the front face of the fixed frame 1, a fixing groove 2 is penetrated through the surface of the fixed frame 1, a support plate 7 is fixedly connected to the inner wall of the fixing groove 2, a clamping mechanism 9 is provided on one side of the support plate 7, the clamping mechanism 9 comprises a worm 904, and the front end of the worm 904 is fixedly connected to the rear end of the rotating plate 5, a worm wheel 906 is transmission-connected to the bottom of the worm 904, a rotating rod 905 is fixedly connected inside the worm wheel 906, a screw 903 is fixedly connected to the other side of the rotating rod 905, a moving block 907 is threadedly connected to the outer wall of the screw 903, a transmission rod 902 is fixedly connected to the other side of the moving block 907, and one end of the transmission rod 902 extends to the inside of the fixing groove 2, and a clamping plate 901 is fixedly connected to the other side of the transmission rod 902;

[0027] Specifically, Figure 1 , Figure 2 and Figure 3As shown, when in use, when it is necessary to fix the workpiece to be welded, the workpiece to be welded is placed in the fixing groove 2, and the support plate 7 is used to support the workpiece to be welded to a certain extent, and then the rotating plate 5 is rotated. The rotating plate 5 drives the worm 904 to rotate, and the worm 904 rotates through the worm wheel 906 to drive the rotating rod 905 to rotate, and the rotating rod 905 drives the screw 903 to rotate, and the screw 903 drives the moving block 907 to move in the direction close to the workpiece with welding, and the moving block 907 moves through the transmission rod 902 to drive the clamping plate 901 to move in the direction close to the workpiece to be welded until it contacts the workpiece to be welded and effectively fixes it. At the same time, through the mutual cooperation of the worm 904 and the worm wheel 906, a self-locking effect can be achieved, thereby effectively avoiding positional deviation of the workpiece to be welded during welding, thereby improving the accuracy of welding, and solving the problem of fixing the workpiece to be welded by the elasticity of the spring, but because the spring has a certain elasticity, it is easy to have positional deviation when welding the workpiece to be welded, thereby reducing the problem of welding accuracy.

[0028] Working principle: In the present application, when it is necessary to fix the workpiece to be welded, put the workpiece to be welded into the fixing groove 2, and use the support plate 7 to support the workpiece to be welded to a certain extent, then rotate the rotating plate 5, the rotating plate 5 drives the worm 904 to rotate, the worm 904 rotates through the worm wheel 906 to drive the rotating rod 905 to rotate, the rotating rod 905 rotates to drive the screw 903 to rotate, the screw 903 rotates to drive the moving block 907 to move in the direction close to the workpiece with welding, the moving block 907 moves through the transmission rod 902 to drive the clamping plate 901 to move in the direction close to the workpiece to be welded, until it contacts the workpiece to be welded and effectively fixes it, and at the same time, through the cooperation between the worm 904 and the worm wheel 906, it can be realized The self-locking effect is achieved, thereby effectively avoiding positional deviation during welding of the workpiece to be welded, thereby improving the accuracy of welding. Secondly, when it is necessary to weld the back side of the workpiece to be welded, the fixed frame 1 can be driven to rotate through the output end of the motor 4, and the rotation of the fixed frame 1 drives the welding workpiece in the fixed slot 2 to rotate. When the fixed frame 1 rotates to a horizontal position, the motor 4 is turned off, thereby realizing welding on the back side of the workpiece to be welded. At the same time, the U-shaped plate 6 can be driven to move in a direction away from or close to the bottom plate 3 through the output end of the telescopic cylinder 8. The movement of the U-shaped plate 6 drives the workpiece to be welded in the fixed frame 1 to move, and the height position of the workpiece to be welded can be adjusted easily, thereby making it more convenient for welders to carry out welding work.

[0029] The standard parts used in this application document can all be purchased from the market, and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art. At the same time, the electrical components appearing in this application are all externally connected to the power supply and control switch when in use. The control method is automatically controlled by a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field, which is common knowledge in this field. Therefore, the present invention no longer explains the control method and circuit connection in detail, and the external controller mentioned in the specification can control the electrical components mentioned in this article, and the external controller is a conventional known device.

[0030] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0031] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above are only preferred implementation methods of the utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the utility model, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A special fixture for an automatic laser welding machine, comprising a U-shaped plate (6) and a clamping mechanism (9), characterized in that: A motor (4) is fixedly mounted on one side of the U-shaped plate (6); an output end of the motor (4) is fixedly connected to a fixing frame (1); a rotating plate (5) is rotatably provided on the front end surface of the fixing frame (1); a fixing groove (2) is penetrated through the surface of the fixing frame (1); a support plate (7) is fixedly connected to the inner wall of the fixing groove (2); and a clamping mechanism (9) is provided on one side of the support plate (7).

2. The special fixture for automatic laser welding machine according to claim 1, characterized in that: The clamping mechanism (9) comprises a worm (904), wherein the front end of the worm (904) is fixedly connected to the rear end of the rotating plate (5), and the bottom of the worm (904) is transmission-connected to a worm wheel (906).

3. The special fixture for automatic laser welding machine according to claim 2, characterized in that: A rotating rod (905) is fixedly connected inside the worm wheel (906), and a screw rod (903) is fixedly connected to the other side of the rotating rod (905).

4. The special fixture for automatic laser welding machine according to claim 3 is characterized in that: The outer wall of the screw rod (903) is threadedly connected to a moving block (907), the other side of the moving block (907) is fixedly connected to a transmission rod (902), and one end of the transmission rod (902) extends to the interior of the fixing groove (2).

5. The special fixture for automatic laser welding machine according to claim 4, characterized in that: The other side of the transmission rod (902) is fixedly connected to a clamping plate (901).

6. The special fixture for automatic laser welding machine according to claim 1, characterized in that: A telescopic cylinder (8) is fixedly installed inside the lower end of the U-shaped plate (6), and the output end of the telescopic cylinder (8) is fixedly connected to the bottom plate (3).

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