Welding mechanism of laser welding machine

Abstract

The utility model discloses a welding mechanism of a laser welding machine, and relates to the technical field of laser welding, the welding mechanism comprises a connecting plate seat and an electric cylinder, a block-up block is connected right above the connecting plate seat through a bolt, a three-axis moving mechanism is arranged right above the block-up block, and the three-axis moving mechanism plays a role in accurate positioning; four bearings are arranged on the three-axis moving mechanism, the four bearings gather towards the center at the same time, centering and rotation stability guaranteeing are achieved, a clamping mechanism is arranged on one side of the three-axis moving mechanism, the two sides of a workpiece are clamped through the clamping mechanism, and then the clamping range is controlled according to the size of the workpiece. The assembly welding platform is installed on a precise laser welding machine platform, precise movement of X, Y and Z axes is achieved through the precise platform, and the precise positioning effect is achieved; the four bearings gather towards the center at the same time, so that centering and rotation stability guaranteeing are achieved. The four bearings are gathered together to cooperate with the precise moving platform for fine adjustment.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding, in particular to a welding mechanism of a laser welding machine. Background Art

[0002] Laser welding uses high-energy laser pulses to locally heat a small area of ​​the material. The energy of the 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 welding thin-walled materials and precision parts, and can realize spot welding, butt welding, lap welding, seal welding, etc.

[0003] The technical problems that the welding mechanism needs to solve are: 1. The existing screw tightening device has low precision, is difficult to adjust, and is very unstable. When welding is unstable, the machine adjustment time is too long, affecting production. 2. The clamping device is not coaxial enough and often deviates during welding. Summary of the Invention

[0004] The purpose of the present invention is to provide a welding mechanism for a laser welding machine to solve the above-mentioned defects caused by the prior art.

[0005] The welding mechanism of the laser welding machine includes a connecting plate seat and an electric cylinder. A pad block is bolted directly above the connecting plate seat, and a three-axis moving mechanism is provided directly above the pad block. The three-axis moving mechanism plays a role in precise positioning; the four bearings converge toward the center at the same time to play a role in centering and ensuring the stability of rotation. A clamping mechanism is provided on one side of the three-axis moving mechanism, which clamps both sides of the workpiece and controls the clamping range according to the size of the workpiece.

[0006] Preferably, the three-axis moving mechanism includes an internal threaded sleeve, a ball screw, a handle, an external positioning frame, an electric rotating shaft, a transposition plate and an electric cylinder. One side of the internal threaded sleeve is connected to the cylinder fixing plate, one side of the transposition plate is connected to the electric cylinder, the outer side of the ball screw is connected to the internal threaded sleeve, both ends of the ball screw are connected to the external positioning frame, one side of the ball screw is connected to the handle, and the outer side of the transposition plate is connected to the electric rotating shaft.

[0007] Preferably, the transposition plate is connected to the top end of the three-axis moving mechanism via an electric rotating shaft provided on one side.

[0008] Preferably, the clamping mechanism includes a cylinder fixing plate, a finger cylinder, a positioning pin, a clamp arm and a bearing. The bottom end of the cylinder fixing plate is connected to the finger cylinder, the output end of the finger cylinder is connected to the clamp arm, the outer side of the clamp arm is connected through the positioning pin, and the outer side of the clamp arm is connected to the bearing.

[0009] Preferably, a positioning pin is passed through the outer side of the clamp arm and connected to the top end of the bearing.

[0010] Preferably, the transposition plate is connected to the cylinder fixing plate via an electric cylinder connected on one side.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. This assembly welding platform, mounted on a precision laser welding machine platform, utilizes the precision platform for precise movement along the X, Y, and Z axes, providing precise positioning. Four bearings simultaneously converge toward the center, providing centering and ensuring rotational stability. This convergence of four bearings, combined with fine-tuning on the precision movement platform, facilitates pre-welding commissioning and ensures precise coaxial positioning during the welding process, preventing deviation and ensuring consistent weld assembly.

[0013] 2. This assembly welding platform does not require manual operation after installation and debugging. It can be started with one button in conjunction with the host, which makes it intelligent, reduces labor intensity, and greatly improves the qualification rate and work efficiency. The ball screw drives the internal threaded sleeve to move horizontally, thereby adjusting the displacement of the cylinder fixing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall explosion structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure in this utility model.

[0016] Figure 3 This is a schematic diagram of the top view of the external positioning frame in the utility model.

[0017] Figure 4 This is a schematic diagram of the structure of the transposition plate itself in the utility model.

[0018] in:

[0019] 1. Connecting plate seat; 2. Spacer block; 3. Three-axis moving mechanism; 4. Cylinder fixing plate; 5. Finger cylinder; 6. Locating pin; 7. Clamp arm; 8. Bearing; 9. Internal threaded sleeve; 10. Ball screw; 11. Handle; 12. External positioning frame; 13. Clamping mechanism; 14. Electric shaft; 15. Transposition plate; 16. Electric cylinder. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figures 1 to 4As shown, the welding mechanism of the laser welding machine includes a connecting plate seat 1 and an electric cylinder 16. A pad block 2 is bolted directly above the connecting plate seat 1, and a three-axis moving mechanism 3 is provided directly above the pad block 2. The three-axis moving mechanism 3 plays a role in precise positioning; four bearings 8 gather toward the center at the same time to play a role in centering and ensuring the stability of rotation. A clamping mechanism 13 is provided on one side of the three-axis moving mechanism 3, and the clamping mechanism 13 clamps both sides of the workpiece, and then controls the clamping range according to the size of the workpiece.

[0022] In this embodiment, the three-axis moving mechanism 3 includes an internal threaded sleeve 9, a ball screw 10, a handle 11, an external positioning frame 12, an electric shaft 14, a transposition plate 15 and an electric cylinder 16. One side of the internal threaded sleeve 9 is connected to the cylinder fixing plate 4, one side of the transposition plate 15 is connected to the electric cylinder 16, the outer side of the ball screw 10 is connected to the internal threaded sleeve 9, both ends of the ball screw 10 are penetrated and connected to the external positioning frame 12, one side of the ball screw 10 is connected to the handle 11, and the outer side of the transposition plate 15 is connected to the electric shaft 14.

[0023] In this embodiment, the transposition plate 15 is connected to the top of the three-axis moving mechanism 3 via an electric shaft 14 provided on one side. The electric shaft 14 drives the transposition plate 15 to rotate, thereby adjusting the position of the clamping mechanism 13.

[0024] In this embodiment, the clamping mechanism 13 includes a cylinder fixing plate 4, a finger cylinder 5, a positioning pin 6, a clamp arm 7 and a bearing 8. The bottom end of the cylinder fixing plate 4 is connected to the finger cylinder 5, and the output end of the finger cylinder 5 is connected to the clamp arm 7. The outer side of the clamp arm 7 is connected with the positioning pin 6, and the outer side of the clamp arm 7 is connected with the bearing 8. The equipment is clamped by the bearing 8 arranged on the outer side of the clamp arm 7, thereby improving the stability of the clamping of the equipment.

[0025] In this embodiment, a positioning pin 6 is connected to the outer side of the clamp arm 7 and is connected to the top of the bearing 8. The positioning pin 6 is used to vertically position the outer side of the bearing 8, so that the bearing 8 can be quickly disassembled and replaced.

[0026] In this embodiment, the transposition plate 15 is connected to the cylinder fixing plate 4 through the electric cylinder 16 connected on one side, and the outer side of the electric cylinder 16 is connected through the cylinder fixing plate 4. The finger cylinder 5 drives the clamp arms 7 on both sides to push, and the distance of the two groups of clamp arms 7 is flexibly adjusted.

[0027] The welding tooling of this welding mold core assembly includes the following work contents in actual application:

[0028] Step 1: During use, first install the connecting plate seat 1 on one side of the processing equipment, and select the corresponding size of the spacer block 2 according to the processing requirements, fit the spacer block 2 to the top of the connecting plate seat 1, and then install the three-axis moving mechanism 3 on the top of the spacer block 2. Before use, the operator holds the handle 11 and uses the handle 11 to rotate the ball screw 10, and the ball screw 10 drives the internal threaded sleeve 9 to rotate and move laterally;

[0029] Step 2: According to the processing requirements, the internal thread sleeve 9 and the cylinder fixing plate 4 are displaced laterally, and then the positions of the cylinder fixing plate 4 and the finger cylinder 5 are adjusted, and the position of the clamp arm 7 is adjusted. The finger cylinder 5 drives the clamp arms 7 on both sides to push, and the two groups of clamp arms 7 are flexibly adjusted. The workpiece is clamped by the bearing 8 provided on the outside of the clamp arm 7, and then the workpiece is displaced;

[0030] Step 3: When the workpiece needs to switch direction, the electric shaft 14 can be turned on, and the electric shaft 14 can be used to drive the transposition plate 15 to rotate, thereby adjusting the position of the transposition plate 15 and the electric cylinder 16. At the same time, the electric cylinder 16 can be used to drive the cylinder fixing plate 4 to push horizontally, thereby displacing the cylinder fixing plate 4, the finger cylinder 5 and the clamp arm 7, so as to facilitate position adjustment control of the workpiece.

[0031] Therefore, the embodiments disclosed above are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. The welding mechanism of the laser welding machine is characterized by: The invention comprises a connecting plate seat (1) and an electric cylinder (16); a spacer block (2) is bolted directly above the connecting plate seat (1); a three-axis moving mechanism (3) is provided directly above the spacer block (2); the three-axis moving mechanism (3) plays a precise positioning role; four bearings (8) simultaneously converge toward the center to play a role in centering and ensuring the stability of rotation; a clamping mechanism (13) is provided on one side of the three-axis moving mechanism (3); the clamping mechanism (13) clamps both sides of a workpiece, and then controls the clamping range according to the size of the workpiece.

2. The welding mechanism of the laser welding machine according to claim 1, characterized in that: The three-axis moving mechanism (3) comprises an internal thread sleeve (9), a ball screw (10), a handle (11), an external positioning frame (12), an electric rotating shaft (14), a transposition plate (15) and an electric cylinder (16); one side of the internal thread sleeve (9) is connected to a cylinder fixing plate (4); one side of the transposition plate (15) is connected to an electric cylinder (16); the outer side of the ball screw (10) is connected to the internal thread sleeve (9); both ends of the ball screw (10) are connected to the external positioning frame (12); one side of the ball screw (10) is connected to a handle (11); and the outer side of the transposition plate (15) is connected to the electric rotating shaft (14).

3. The welding mechanism of the laser welding machine according to claim 2, characterized in that: The transposition plate (15) is connected to the top end of the three-axis moving mechanism (3) via an electric rotating shaft (14) provided on one side.

4. The welding mechanism of the laser welding machine according to claim 1, characterized in that: The clamping mechanism (13) comprises a cylinder fixing plate (4), a finger cylinder (5), a positioning pin (6), a clamp arm (7) and a bearing (8); the bottom end of the cylinder fixing plate (4) is connected to the finger cylinder (5); the output end of the finger cylinder (5) is connected to the clamp arm (7); the outer side of the clamp arm (7) is connected to the positioning pin (6); and the outer side of the clamp arm (7) is connected to the bearing (8).

5. The welding mechanism of the laser welding machine according to claim 4, characterized in that: The outer side of the clamp arm (7) is connected with a positioning pin (6) which is connected to the top end of the bearing (8).

6. The welding mechanism of the laser welding machine according to claim 2, characterized in that: The transposition plate (15) is connected to the cylinder fixing plate (4) via an electric cylinder (16) connected on one side.

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