A laser welding apparatus for diamond grinding wheel processing

Abstract

The application belongs to the technical field of laser welding equipment, and particularly discloses a laser welding device for diamond grinding wheel processing, which comprises a welding table, a mounting plate fixedly connected to the top of the welding table, and a laser welding gun mounted on the mounting plate; a rotating disc horizontally mounted on the top of the welding table; a fixing device comprising a chuck, a pressing rod, a clamping block and a driving assembly, the chuck being horizontally mounted on the top of the rotating disc and coaxial with the rotating disc, the top of the chuck being provided with a grinding wheel to be welded, the top surface of the chuck being uniformly and annularly provided with three mounting grooves, and the pressing rod and the clamping block being slidingly mounted in the mounting grooves. Through the linkage of the driving shaft, the screw rod, the shaft sleeve and other structures, the synchronous action of the inner and outer clamping is realized by single-power driving, the structure is compact and stable, the clamping efficiency is high, the device is suitable for the quick clamping of diamond grinding wheels of multiple specifications, and the complexity and the debugging difficulty of the device are reduced.

Claims

1. A laser welding device for diamond grinding wheel processing, characterized in that, include: A welding table (1) is fixedly connected to a mounting plate (2) on its top, and a laser welding gun (3) is mounted on the mounting plate (2). A turntable (4) is horizontally mounted on top of the welding table (1); The fixing device includes a chuck (5), a clamping rod (6), a clamping block (7), and a driving assembly. The chuck (5) is horizontally mounted on the top of the turntable (4), and the chuck (5) and the turntable (4) are coaxial. The grinding wheel (8) to be welded is placed on the top of the chuck (5). Three mounting grooves (9) are evenly distributed radially on the top surface of the chuck (5). The clamping rod (6) and the clamping block (7) are slidably mounted in the mounting grooves (9). The clamping rod (6) is located inside the grinding wheel (8). The top of the clamping block (7) is vertically fixedly connected to a clamping rod (10). The clamping rod (10) is located outside the grinding wheel (8). In the initial state, the distance from the clamping rod (10) to the outside of the abrasive is greater than the distance from the clamping rod (6) to the inner wall of the substrate. The driving assembly is connected between the clamping block (7) and the clamping rod (6) to drive them to move closer to or further away from each other. The drive assembly includes a drive shaft (11), a screw (12), a bushing (13), a first slider (14), a second slider (15), and a transmission mechanism. The bottom of the mounting groove (9) has a mounting hole parallel to its length. The first slider (14) and the second slider (15) are both horizontally slidably mounted in the mounting hole. The top of the first slider (14) is connected to the bottom of the clamping block (7). The clamping rod (6) is vertically rotatably inserted into the second slider (15). The drive shaft (11) is horizontally rotatably inserted into the mounting hole. Inside, and the end of the drive shaft (11) away from the axis of the chuck (5) is located on the outside of the chuck (5), the first slider (14) is threaded onto the drive shaft (11), the screw (12) is connected to the end of the drive shaft (11) near the axis of the chuck (5) through the coupling (16), and the screw (12) is coaxial with the drive shaft (11), the bushing (13) is threaded onto the free end of the screw (12), and the end of the bushing (13) away from the screw (12) is fixedly connected to the second slider (15), and the coupling (16) can rotate freely due to overload; The transmission mechanism includes a transmission gear (17), a rotating ring (18), a motor (19), and a drive gear (20). The transmission gear (17) is fixedly sleeved on the end of the drive shaft (11) away from the screw (12). The rotating ring (18) is rotatably sleeved on the edge of the turntable (4). The side and top of the rotating ring (18) are all annularly distributed with teeth. The teeth on the top of the rotating ring (18) are in contact with the bottom of the transmission gear (17). The motor (19) is mounted on the top of the welding table (1), and the drive gear (20) is fixedly sleeved on the output shaft of the motor (19). The drive gear (20) meshes with the teeth on the side of the rotating ring (18). The top of the turntable (4) is provided with a strip groove (21) parallel to the length direction of the mounting hole, and the bottom end of the clamping rod (6) is located in the strip groove (21). The bottom end of the clamping rod (6) is fitted with a one-way gear (22). A section of teeth that can mesh with the one-way gear (22) is provided on one side of the inner wall of the strip groove (21) to drive the clamping rod (6) to rotate less than one revolution when the clamping rod (6) moves away from the axis of the turntable (4).

2. The laser welding equipment for diamond wheel machining according to claim 1, characterized in that: The top surface of the clamping block (7) is lower than the top surface of the clamping plate (5), and the bottom of the clamping block (7) is provided with a sliding groove parallel to the length direction of the mounting groove (9). The top of the first slider (14) is slidably installed in the sliding groove. An adjusting rod (23) is horizontally rotatably inserted at the end of the clamping block (7) away from the clamping rod (6). The adjusting rod (23) is parallel to the drive shaft (11), and the adjusting rod (23) is threaded through and inserted into the first slider (14). A pressure sensor (24) is installed on the top of the clamping block (7), and the pressure sensor (24) can fit against the side of the grinding wheel (8).

3. The laser welding equipment for diamond grinding wheel processing according to claim 2, characterized in that: The clamping rods (10) on the top of the clamping block (7) are two in number, and both clamping rods (10) can contact the side of the grinding wheel (8), and the pressure sensor (24) is located between the two clamping rods (10).

4. The laser welding equipment for diamond grinding wheel processing according to claim 3, characterized in that: The top of the chuck (5) is uniformly mounted with ball bearings (25), and the top of the ball bearings (25) is higher than the top surface of the chuck (5).

5. The laser welding equipment for diamond wheel machining according to claim 4, characterized in that: The free end of the adjusting rod (23) is provided with a cross-shaped slot for inserting a screwdriver, and the mounting groove (9) is open on the side away from the axis of the chuck (5).

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