Galvanometer welding head with pressing mechanism

Abstract

The utility model relates to a galvanometer welding head with a hold-down mechanism, which relates to the technical field of laser welding heads, and comprises a shell, a mounting plate is fixedly arranged on the outer wall of the shell, a group of cylinders are symmetrically arranged on the mounting plate, piston rods of the cylinders penetrate through the mounting plate and are connected with lifting rods, and the lifting rods are connected with the hold-down mechanism. Lifting blocks are arranged on the lifting rods in a sliding mode, a cover plate is connected between the lifting blocks, high-transmittance glass is arranged on the cover plate, abutting blocks and limiting blocks are arranged on the lifting rods, the lifting blocks are located between the abutting blocks and the limiting blocks, and the lifting rods are sleeved with buffer springs. The buffer spring drives the lifting block to abut against the upper surface of the limiting block. The welding device has the advantages that the workpiece can be quickly welded, the operation steps are reduced, and the production and machining efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of laser welding heads, and in particular to a galvanometer welding head with a clamping mechanism. Background Technology

[0002] Currently, galvanometer welding heads represent an innovative laser welding technology. They achieve high-precision laser welding by using a motor to drive a lens at high speed. Their core advantages lie in the precise control of the current driving the motor, ensuring high precision, rapid response, and low inertia. Before welding with a galvanometer welding head, the workpiece needs to be clamped. Current technologies use a separate clamping fixture, but this fixture is complex, and the clamping and unclamping process is cumbersome, time-consuming, and labor-intensive, reducing production efficiency. Therefore, improvements are needed. Utility Model Content

[0003] In order to enable rapid welding of workpieces, reduce operation steps, and improve production efficiency, this application provides a galvanometer welding head with a clamping mechanism.

[0004] The galvanometer welding head with a clamping mechanism provided in this application adopts the following technical solution:

[0005] A galvanometer welding head with a clamping mechanism includes a housing. A mounting plate is fixedly mounted on the outer wall of the housing. A set of cylinders are symmetrically arranged on the mounting plate. The piston rods of the cylinders pass through the mounting plate and are connected to a lifting rod. Lifting blocks are slidably mounted on the lifting rod. A cover plate is connected between the lifting blocks. The cover plate is located below the housing and has high-transparency glass directly below the housing. An abutment block and a limiting block are provided on the lifting rod. The limiting block is located below the abutment block, and the lifting block is located between the abutment block and the limiting block. A buffer spring is sleeved on the lifting rod. One end of the buffer spring abuts against the lower surface of the abutment block, and the other end abuts against the lifting block. The buffer spring drives the lifting block to abut against the upper surface of the limiting block.

[0006] By adopting the above technical solution, during welding, the welding head is close to the top of the workpiece, the cylinder operates, the piston rod of the cylinder extends, driving the lifting rod to descend. The cover plate between the lifting rods descends together with the lifting rods until the cover plate abuts against the surface of the workpiece. The piston rod continues to descend, the lifting block slides on the lifting rod, and the buffer spring is compressed to buffer the force. The buffer spring is used to buffer the force on the cover plate, and at the same time, a certain pressure is applied to the cover plate to press the cover plate firmly against the workpiece. When the welding head is working, laser welding is performed through high-transparency glass. After welding is completed, the cylinder piston rod retracts, driving the lifting rod away from the workpiece. At this time, the buffer spring drives the cover plate to reset, and the buffer spring drives the lifting block to abut against the upper surface of the limit block, which is used for limiting. In the whole process, there is no need to configure a separate fixture to clamp the workpiece. After the welding head approaches the workpiece, the clamping mechanism on the welding head automatically clamps the workpiece, reducing the operation steps, facilitating fast welding work, and thus improving processing efficiency.

[0007] Preferably, a guide ball is symmetrically and rotatably provided on the lower surface of the cover plate at the apex corner.

[0008] By adopting the above technical solution, when the cover plate presses against the surface of the workpiece, the guide ball presses against the surface of the workpiece. During welding, the welding head moves horizontally. At this time, the guide ball rotates under force, and the guide ball reduces the friction between the cover plate and the surface of the workpiece, so as to realize that the cover plate continuously presses against the surface of the workpiece during the horizontal movement of the welding head, thereby reducing the wear between the cover plate and the workpiece.

[0009] Preferably, the lower surface of the cover plate is symmetrically provided with mounting grooves, a rotating block is rotatably disposed in the mounting groove, a first bearing is disposed between the top wall of the rotating block and the bottom wall of the mounting groove; a guide groove is opened on the bottom wall of the rotating block, a rotating shaft is disposed on the guide ball, the guide ball is rotatably disposed in the guide groove through the rotating shaft, and a second bearing is disposed at the rotatable connection between the rotating shaft and the guide groove.

[0010] By adopting the above technical solution, when the cover plate is pressed against the workpiece by the cylinder, the guide ball is subjected to force, the top wall of the rotating block is subjected to force between the bottom wall of the mounting groove, the first bearing reduces the friction between the rotating block and the mounting groove, and the second bearing reduces the friction between the rotating shaft and the inner wall of the guide groove. The rotating shaft and the rotating block can satisfy the guide ball to roll in different directions, so that the guide ball can move in different directions with the shell on the horizontal plane, satisfying the diversity of welding work.

[0011] Preferably, the surface of the guide ball is covered with a rubber layer.

[0012] By adopting the above technical solution, when the shell moves in the horizontal direction, the guide ball rolls under the action of friction, and the rubber layer can reduce the wear of the guide ball on the surface of the workpiece, thus playing a role in protecting the workpiece.

[0013] Preferably, a screw is fixedly provided on the limiting block, and a first connecting groove for inserting the screw is provided on the bottom wall of the lifting rod. The first connecting groove is threadedly connected to the screw, and the limiting block abuts against the bottom wall of the lifting rod.

[0014] By adopting the above technical solution, the screw and the first connecting groove are connected by a thread to realize the disassembly and assembly of the limit block and the lifting rod. The limit block can be disassembled to facilitate the disassembly of the buffer spring and buffer block, thereby facilitating the assembly and maintenance of the cover plate and improving the convenience of component assembly.

[0015] Preferably, the surface of the lifting rod is provided with a threaded section, the abutment block is sleeved on the lifting rod and threadedly connected to the threaded section, and a washer is provided between the abutment block and the buffer spring.

[0016] By adopting the above technical solution, rotating the abutment block can cause it to slide on the surface of the lifting rod. At the same time, the shim reduces the wear on the buffer spring. Changing the distance between the abutment block and the limit block can adjust the deformation state of the buffer spring so that the buffer spring can adapt to the clamping requirements of different workpieces and improve the adaptability of the welding head.

[0017] Preferably, the top wall of the lifting rod is provided with a second connecting groove for inserting a cylinder piston rod, the cylinder piston rod and the second connecting groove are adapted to each other, a pin is movably disposed in the second connecting groove, and a connecting hole is provided on the cylinder piston rod for the pin to pass through and abut against.

[0018] By adopting the above technical solution, when assembling the lifting rod, the cylinder piston rod is inserted into the second connecting groove, and then the pin in the second connecting groove is slid to make the pin pass through the connecting block. At this time, the pin abuts against the inner wall of the connecting hole, which can quickly connect and fix the cylinder piston rod and the lifting rod, improving the convenience of component assembly and facilitating component disassembly and maintenance.

[0019] Preferably, a guide block is fixedly provided on the side wall of the lifting rod, and a set of guide rails are symmetrically provided on the outer wall of the housing, with the guide block and the guide rails being slidably connected.

[0020] By adopting the above technical solution, when pressing, the cylinder piston rod drives the guide block to slide on the outer wall of the housing. The guide block is guided by the guide rail, and the guide block slides on the guide rail, which helps to improve the stability of the lifting rod when it is raised and lowered.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. By setting up a housing, mounting plate, cylinder, lifting rod, lifting block, cover plate, high-transparency glass, abutment block, limit block, and buffer spring, during welding, the welding head is close to the top of the workpiece, the cylinder works, the piston rod of the cylinder extends, driving the lifting rod to descend, the cover plate between the lifting rods descends together with the lifting rod, and the buffer spring is compressed to buffer, so that the cover plate presses the workpiece. When the welding head is working, laser welding is performed through the high-transparency glass. The whole process does not require a separate fixture to clamp the workpiece. After the welding head is close to the workpiece, the clamping mechanism on the welding head automatically clamps the workpiece, reducing operation steps, facilitating fast welding work, and thus improving processing efficiency.

[0023] 2. By setting up a guide ball, mounting groove, rotating block, first bearing, guide groove, rotating shaft, and second bearing, when the cover plate is pressed against the workpiece by the cylinder, the guide ball is subjected to force, the top wall of the rotating block is subjected to force between the top wall and the bottom wall of the mounting groove, the first bearing reduces the friction between the rotating block and the mounting groove, and the second bearing reduces the friction between the rotating shaft and the inner wall of the guide groove. The rotating shaft and rotating block can allow the guide ball to roll in different directions, so that the guide ball can move in different directions on the horizontal plane with the shell, which meets the diversity of welding work, while the rubber layer can reduce the wear of the guide ball on the surface of the workpiece.

[0024] 3. By setting a screw and a first connecting groove, the screw and the first connecting groove are connected by a thread to realize the assembly and disassembly of the limit block and the lifting rod. The limit block can be disassembled to facilitate the disassembly of the buffer spring and buffer block, which in turn facilitates the assembly of the cover plate and improves the convenience of component maintenance. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a galvanometer welding head with a clamping mechanism provided in an embodiment of this application.

[0026] Figure 2 This is a cross-sectional view used to illustrate the lifting rod in the embodiments of this application.

[0027] Figure 3 This is a cross-sectional view used to illustrate the connection relationship between the cover plate and the guide ball in the embodiment.

[0028] Explanation of reference numerals in the attached drawings: 1. Housing; 2. Mounting plate; 21. Cylinder; 211. Connecting hole; 3. Lifting rod; 31. Lifting block; 32. Abutting block; 321. Gasket; 33. Limiting block; 34. Buffer spring; 4. Cover plate; 41. High-transparency glass; 42. Guide ball; 421. Rubber layer; 5. Mounting groove; 51. Rotating block; 511. First bearing; 52. Guide groove; 521. Rotating shaft; 522. Second bearing; 6. Screw; 61. First connecting groove; 7. Threaded section; 8. Second connecting groove; 81. Pin; 9. Guide block; 91. Guide rail. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0030] This application discloses a galvanometer welding head with a clamping mechanism. (Refer to...) Figure 1 The device includes a housing 1 for welding, the length of which is vertical. A mounting plate 2 is fixedly mounted on the outer wall of the housing 1, and a set of cylinders 21 are symmetrically fixed on the mounting plate 2 by bolts. The piston rod of the cylinder 21 passes through the mounting plate 2 and is connected to a lifting rod 3, the length of which is vertical. A guide block 9 is fixedly mounted on the side wall of the lifting rod 3, and a set of guide rails 91 are symmetrically mounted on the outer wall of the housing 1. The guide block 9 and the guide rails 91 are slidably connected. The piston extension and retraction of the cylinder 21 can drive the lifting rod 3 to rise and fall, and the sliding between the guide block 9 and the guide rails 91 improves the stability of the lifting rod 3 during the rising and falling.

[0031] Reference Figure 1 and Figure 2 A lifting block 31 is slidably mounted on the lifting rod 3, and the lifting block 31 is sleeved on the lifting rod 3. A cover plate 4, made of plastic, is fixedly connected between the lifting blocks 31 and is located below the housing 1. A high-transparency glass 41 is fixedly mounted on the cover plate 4, and the high-transparency glass 41 is located directly below the housing 1. An abutment block 32 and a limiting block 33 are provided on the lifting rod 3. The limiting block 33 is located below the abutment block 32, and the lifting block 31 is located between the abutment block 32 and the limiting block 33. A buffer spring 34 is sleeved on the lifting rod 3. One end of the buffer spring 34 abuts against the lower surface of the abutment block 32, and the other end of the buffer spring 34 abuts against the lifting block 31. During welding, the welding head is positioned directly above the workpiece. Cylinder 21 operates, extending its piston rod and causing the lifting rod 3 to descend. The cover plate 4 between the lifting rods 3 descends along with the lifting rod 3 until it abuts against the workpiece surface. The piston rod continues to descend, causing the lifting block 31 to slide on the lifting rod 3 under pressure. At this time, the buffer spring 34 is compressed to buffer the force on the cover plate 4. Simultaneously, a certain pressure is applied to the cover plate 4 to press it firmly against the workpiece. Laser welding is performed through the high-transparency glass 41 during welding. After welding is completed, the piston rod of cylinder 21 retracts, causing the lifting rod 3 to move away from the workpiece. At this time, the buffer spring 34 causes the cover plate 4 to reset. The buffer spring 34 drives the lifting block 31 to abut against the upper surface of the limiting block 33, which then limits its movement.

[0032] Reference Figure 1 and Figure 3The lower surface of the cover plate 4 is symmetrically provided with four mounting grooves 5 located at its top corners. A rotating block 51 is rotatably mounted within each mounting groove 5. A first bearing 511 is positioned between the top wall of the rotating block 51 and the bottom wall of the mounting groove 5. A guide groove 52 is provided on the bottom wall of the rotating block 51. A guide ball 42 is positioned within the guide groove 52. A rotating shaft 521 is symmetrically fixed to the surface of the guide ball 42. The guide ball 42 is rotatably mounted within the guide groove 52 via the rotating shaft 521. A second bearing 522 is positioned at the rotatable connection between the rotating shaft 521 and the guide groove 52. The surface of the guide ball 42 is covered with a rubber layer 421. When the cylinder 21 drives the cover plate 4 to press against the workpiece, the guide ball 42 is in contact with the workpiece surface and is subjected to force. The top wall of the rotating block 51 is subjected to force between the top wall and the bottom wall of the mounting groove 5. The first bearing 511 reduces the friction between the rotating block 51 and the mounting groove 5, and the second bearing 522 reduces the friction between the rotating shaft 521 and the inner wall of the guide groove 52. When the welding head is displaced on the horizontal plane, the guide ball 42 is subjected to force and rotates. The guide ball 42 reduces the friction between the cover plate 4 and the workpiece surface, so as to achieve the effect of the cover plate 4 continuously pressing against the workpiece surface when the welding head moves horizontally for welding. The rotating shaft 521 and the rotating block 51 can satisfy the rolling of the guide ball 42 in different directions, satisfying the diversity of welding work. The rubber layer can reduce the wear of the guide ball 42 on the workpiece surface and play a protective role for the workpiece.

[0033] Reference Figure 1 and Figure 2 A screw 6 is integrally provided on the limiting block 33. A first connecting groove 61 for inserting the screw 6 is opened on the bottom wall of the lifting rod 3. The length direction of the first connecting groove 61 is set along the length direction of the lifting rod 3. The first connecting groove 61 and the screw 6 are threadedly connected. The limiting block 33 abuts against the bottom wall of the lifting rod 3. A second connecting groove 8 for inserting the piston rod of the cylinder 21 is opened on the top wall of the lifting rod 3. The length direction of the second connecting groove 8 is set along the length direction of the lifting rod 3. The piston rod of the cylinder 21 and the second connecting groove 8 are adapted to each other. A pin 81 is movably arranged in the second connecting groove 8. A connecting hole 211 is opened on the piston rod of the cylinder 21 for the pin 81 to pass through and abut against. The screw 6 and the first connecting groove 61 are connected by a thread to facilitate the assembly and disassembly of the limiting block 33 and the lifting rod 3. The limiting block 33 can be disassembled to facilitate the disassembly of the buffer spring 34 and the buffer block. When assembling the lifting rod 3, the piston rod of the cylinder 21 is inserted into the second connecting groove 8, and then the pin 81 in the second connecting groove 8 is slid to allow the pin 81 to pass through the connecting block. At this time, the pin 81 abuts against the inner wall of the connecting hole 211, which can quickly connect and fix the piston rod of the cylinder 21 and the lifting rod 3, improving the convenience of component assembly and facilitating component disassembly and maintenance.

[0034] Reference Figure 1 and Figure 2The lifting rod 3 has a threaded section 7 on its surface, the length of which is along the length of the lifting rod 3. A stop block 32 is fitted onto the lifting rod 3 and threadedly connected to the threaded section 7. A washer 321 is placed between the stop block 32 and the buffer spring 34. Rotating the stop block 32 allows it to slide on the surface of the lifting rod 3. Simultaneously, the washer 321 reduces wear on the buffer spring 34. Changing the distance between the stop block 32 and the limiting block 33 adjusts the deformation of the buffer spring 34, enabling it to adapt to the clamping requirements of different workpieces and improving the adaptability of the welded joint.

[0035] The implementation principle of a galvanometer welding head with a clamping mechanism in this application embodiment is as follows: Before welding, the welding head is positioned directly above the workpiece. The cylinder 21 operates, extending the piston rod of the cylinder 21 and causing the lifting rod 3 to descend. The cover plate 4 between the lifting rods 3 descends along with the lifting rod 3 until it abuts against the workpiece surface. The piston rod continues to descend, and the lifting block 31 slides on the lifting rod 3. The buffer spring 34 is compressed for cushioning. The buffer spring 34 cushions the force on the cover plate 4 and applies a certain pressure to the cover plate 4 to clamp it against the workpiece. Laser welding is performed through the high-transparency glass 41 during welding. If the welding head needs to slide on a horizontal plane during welding, the guide ball 42 at the bottom of the cover plate 4 can roll, ensuring the cover plate 4 remains pressed against the workpiece surface. After welding, the piston rod of the cylinder 21 retracts, causing the lifting rod 3 to move away from the workpiece. At this time, the buffer spring 34 causes the cover plate 4 to reset, and the buffer spring 34 drives the lifting block 31 to abut against the upper surface of the limiting block 33, which then limits its movement. Throughout the process, there is no need to configure a separate fixture for the workpiece. After the welding head approaches the workpiece, the clamping mechanism on the welding head automatically clamps the workpiece, reducing the number of operation steps, facilitating fast welding, and thus improving processing efficiency.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A galvanometer welding head with a clamping mechanism, comprising a housing (1), characterized in that: A mounting plate (2) is fixedly installed on the outer wall of the housing (1). A set of cylinders (21) are symmetrically arranged on the mounting plate (2). The piston rod of the cylinder (21) passes through the mounting plate (2) and is connected to a lifting rod (3). A lifting block (31) is slidably arranged on the lifting rod (3). A cover plate (4) is connected between the lifting blocks (31). The cover plate (4) is located below the housing (1). A high-transparency glass (41) is provided on the cover plate (4). The high-transparency glass (41) is located directly below the housing (1). The rod (3) is provided with an abutment block (32) and a limiting block (33). The limiting block (33) is located below the abutment block (32). The lifting block (31) is located between the abutment block (32) and the limiting block (33). A buffer spring (34) is sleeved on the lifting rod (3). One end of the buffer spring (34) abuts against the lower surface of the abutment block (32), and the other end of the buffer spring (34) abuts against the lifting block (31). The buffer spring (34) drives the lifting block (31) to abut against the upper surface of the limiting block (33).

2. The galvanometer welding head with a clamping mechanism according to claim 1, characterized in that: A guide ball (42) is symmetrically rotated on the lower surface of the cover plate (4) at the apex corner.

3. The galvanometer welding head with a clamping mechanism according to claim 2, characterized in that: The lower surface of the cover plate (4) is symmetrically provided with mounting grooves (5), and a rotating block (51) is rotatably arranged in the mounting groove (5). A first bearing (511) is provided between the top wall of the rotating block (51) and the bottom wall of the mounting groove (5). A guide groove (52) is opened on the bottom wall of the rotating block (51), and a rotating shaft (521) is provided on the guide ball (42). The guide ball (42) is rotatably arranged in the guide groove (52) through the rotating shaft (521). A second bearing (522) is provided at the rotatable connection between the rotating shaft (521) and the guide groove (52).

4. A galvanometer welding head with a clamping mechanism according to claim 3, characterized in that: The surface of the guide ball (42) is covered with a rubber layer (421).

5. A galvanometer welding head with a clamping mechanism according to claim 1, characterized in that: A screw (6) is fixedly installed on the limiting block (33), and a first connecting groove (61) for inserting the screw (6) is opened on the bottom wall of the lifting rod (3). The first connecting groove (61) is threadedly connected to the screw (6), and the limiting block (33) abuts against the bottom wall of the lifting rod (3).

6. A galvanometer welding head with a clamping mechanism according to claim 1, characterized in that: The surface of the lifting rod (3) is provided with a threaded section (7), the abutment block (32) is sleeved on the lifting rod (3) and threadedly connected to the threaded section (7), and a gasket (321) is provided between the abutment block (32) and the buffer spring (34).

7. A galvanometer welding head with a clamping mechanism according to claim 1, characterized in that: The top wall of the lifting rod (3) is provided with a second connecting groove (8) for inserting the piston rod of the cylinder (21). The piston rod of the cylinder (21) and the second connecting groove (8) are adapted to each other. A pin (81) is movably arranged in the second connecting groove (8). A connecting hole (211) is provided on the piston rod of the cylinder (21) for the pin (81) to pass through and abut against.

8. A galvanometer welding head with a clamping mechanism according to claim 1, characterized in that: A guide block (9) is fixedly installed on the side wall of the lifting rod (3), and a set of guide rails (91) are symmetrically arranged on the outer wall of the housing (1). The guide block (9) and the guide rails (91) are slidably connected.

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