Multi-axis linkage galvanometer welding machine

Abstract

The utility model discloses a multi-axis linkage galvanometer welding machine, and relates to the field of laser welding, the multi-axis linkage galvanometer welding machine comprises a case main body, Y-axis moving mechanisms are arranged on the two sides of the upper end face of the case main body, matched X-axis moving mechanisms are arranged on the tops of the two Y-axis moving mechanisms, and Z-axis moving mechanisms are arranged on one sides of the X-axis moving mechanisms; a connecting plate is arranged on the side, opposite to the X-axis moving mechanism, of the Z-axis moving mechanism, and a welding mechanism is arranged on the surface of the connecting plate. The welding mechanism comprises a galvanometer welding head fixedly arranged on the surface of one side of the connecting plate. The fixing mechanism comprises a guide rail air cylinder fixedly arranged on the surface of the bottom of the connecting plate, one side of the guide rail air cylinder is connected with an adjustable elastic pressing device, and the bottom of the adjustable elastic pressing device is fixedly connected with an L-shaped pressing plate. The welding device has the advantages that materials are effectively fixed, a welding head is aligned with a welding spot, welding precision is improved, contact between personnel and the welding head is avoided, and potential safety hazards are reduced.

Description

Technical Field

[0001] This application relates to the field of laser welding, and in particular to a multi-axis linkage galvanometer welding machine. Background Art

[0002] A laser welding machine is a welding method that emits a laser beam with a high energy density from a laser welding head as a heat source to weld the product to be welded. Currently, in order to improve the welding accuracy of common laser welding devices, the welding material usually needs to be placed on the surface of the platform, and the angle of the material is manually adjusted according to the placement situation so as to align with the welding head, and then the welding operation is carried out.

[0003] Such as the publication number CN202322813856.8, a laser welding machine. The above device has the following deficiencies in actual use:

[0004] When performing precision welding, the device needs to first place the welding material on the placement plate, and then start the motor to control the clamping plates on both sides to clamp and fix the welding material. However, the method of tightening and fixing from the horizontal sides is likely to cause the material to shift, and manual adjustment by personnel is required, which affects the welding accuracy of the material. At the same time, it is easy for personnel to come into contact with the welding head during manual operation, forming a safety hazard. Utility Model Content

[0005] In order to improve the problem that the conventional welding device cannot effectively fix the material, resulting in the welding head not being able to align with the material welding point and reducing the welding accuracy, and at the same time, manual adjustment by humans is required, forming an installation hazard, this application provides a multi-axis linkage galvanometer welding machine.

[0006] The multi-axis linkage galvanometer welding machine provided by this application adopts the following technical solutions:

[0007] A multi-axis linkage galvanometer welding machine includes a chassis main body. On both sides of the upper end surface of the chassis main body, Y-axis moving mechanisms are provided. On the top of the two Y-axis moving mechanisms, a matching X-axis moving mechanism is provided. On one side of the X-axis moving mechanism, a Z-axis moving mechanism is provided. On the side of the Z-axis moving mechanism opposite to the X-axis moving mechanism, a connecting plate is provided, and a welding mechanism is arranged on the surface of the connecting plate;

[0008] The welding mechanism includes a galvanometer welding head fixed on one side surface of the connecting plate. On one side surface of the galvanometer welding head, a connecting piece one is fixed. On the top of the connecting piece one, a connecting piece two is fixedly connected. On the top of the connecting piece two, an optical fiber interface is provided;

[0009] The fixing mechanism includes a guide rail cylinder fixed on the bottom surface of the connecting plate. On one side of the guide rail cylinder, an adjustable elastic pressing device is connected. At the bottom of the adjustable elastic pressing device, an L-shaped pressing plate is fixedly connected.

[0010] By adopting the above technical solutions, the X-axis moving mechanism, the Y-axis moving mechanism, and the Z-axis moving mechanism are integrally connected, thereby driving the welding mechanism and the fixing mechanism to perform multi-axis movement, moving the welding mechanism to the welding point position for welding, and adjusting the horizontal height of the fixing mechanism by the Z-axis moving mechanism to fix the welding material, thereby realizing high-precision welding operation.

[0011] Preferably, moving blocks are threadedly connected to the surfaces of the moving shafts of the two Y-axis moving mechanisms and the Z-axis moving mechanism. Connecting columns are fixedly provided at the tops of the moving blocks on the moving shafts of the two Y-axis moving mechanisms, and the tops of the two connecting columns are fixedly connected to the bottom of the X-axis moving mechanism.

[0012] By adopting the above technical solutions, while the connecting column is connected to the moving block to form an integral body, the top of the connecting column is connected to the X-axis moving mechanism, and the two Y-axis moving mechanisms drive the connecting column, thereby causing the X-axis moving mechanism to perform parallel movement along the Y-axis.

[0013] Preferably, one side of the outer surface of the moving block on the moving shaft of the Z-axis moving mechanism is fixedly connected to a connecting plate, and an L-shaped plate is fixedly provided on the other side of the outer surface of the Z-axis moving mechanism relative to the moving block. The top of the L-shaped plate is threadedly connected to the moving shaft of the X-axis moving mechanism.

[0014] By adopting the above technical solutions, the two ends of the L-shaped plate are respectively connected to the Z-axis moving mechanism and the X-axis moving mechanism, causing the X-axis moving mechanism to drive the Z-axis moving mechanism to perform parallel movement along the X-axis. At the same time, the Z-axis moving mechanism drives the connecting plate to move synchronously through the moving block.

[0015] Preferably, the welding mechanism further includes a fixing plate fixedly provided on one side of the interface of the galvanometer welding head. A connecting member one is fixedly connected to the side of the fixing plate opposite to the galvanometer welding head. A rubber ring is fixedly connected to the other end of the connecting member one relative to the fixing plate, and a laser refraction mirror is fixedly provided on the other side of the rubber ring.

[0016] By adopting the above technical solutions, the laser enters the shell inside the connecting member one through the connecting member two, and is then refracted by the laser connecting mirror, thereby adjusting the laser emission direction and causing the laser to enter the galvanometer welding head for welding operation.

[0017] Preferably, a lens adjustment knob is connected to the top of the laser refraction mirror, and a laser adjustment knob is connected to the middle of the surface of the connecting member two.

[0018] By adopting the above technical solutions, rotate the lens adjustment knob to control the lens angle of the laser refraction mirror. At the same time, rotate the laser adjustment knob to control the laser channel inside the connecting member two, thereby flexibly adjusting the laser intensity.

[0019] Preferably, the fixing mechanism further includes a connecting slider movably arranged in the track of the guide rail cylinder, and the top of the side wall of the connecting slider is fixedly connected with an adjustable elastic pressing device.

[0020] By adopting the above technical solution, the connecting slider moves along the track of the guide rail cylinder, thereby driving the adjustable elastic pressing device to move downward synchronously with the subsequent linear guide rail, and maintaining a good pressing distance.

[0021] Preferably, a linear guide rail is fixedly arranged at the bottom of the side wall of the connecting slider, a stress plate is movably arranged in the track of the linear guide rail, one side of the stress plate is fixedly connected with an L-shaped pressing plate, and a nitrogen gas blowing mechanism is fixedly arranged on the surface of the L-shaped pressing plate.

[0022] By adopting the above technical solution, the stress plate is pressed downward along the track of the linear guide rail under the pressure of the adjustable elastic pressing device, thereby driving the L-shaped pressing plate to move downward, so as to fix the material. At the same time, the nitrogen gas blowing mechanism blows nitrogen gas to the surface of the welded material, so as to make the material undergo anaerobic concentration.

[0023] Preferably, a laser protection plate is fixedly arranged around the two Y-axis moving mechanisms on the upper end surface of the chassis main body, and an adjustable display screen is arranged on one side of the laser protection plate on the outer surface of the chassis main body.

[0024] By adopting the above technical solution, the laser protection plate blocks the iron filings sputtered during welding, and at the same time, the display screen displays the system parameters in real time, which is convenient for personnel to debug.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. Utilize the Y-axis moving mechanism, X-axis moving mechanism, and Z-axis moving mechanism to respectively control the connecting plate to move in three directions, so that the fixing mechanism moves to the position of the material welding point, and then the stress plate is pressed against the material by the extension of the adjustable elastic pressing device for fixing, ensuring the welding environment, and cooperating with the laser emitted by the galvanometer welding head 61 to weld the material, effectively preventing the material from shifting, and enabling precise welding to improve the welding quality.

[0027] 2. Debug the computer control system with the help of the display screen and the supporting keyboard, so as to control the multi-directional moving mechanism, fixing mechanism, and welding mechanism to operate in coordination, ensuring the welding environment, preventing direct contact between personnel and materials or welding devices, and reducing potential safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a three-dimensional schematic diagram of the present application;

[0029] Figure 2 is a multi-axis connection schematic diagram of the present application;

[0030] Figure 3 This is the explosion diagram of the welding mechanism of this application;

[0031] Figure 4 This is the connection diagram of the fixing mechanism of this application.

[0032] Reference numerals: 1, main chassis body; 2, laser protection plate; 3, Y-axis moving mechanism; 4, X-axis moving mechanism; 5, Z-axis moving mechanism;

[0033] 6, welding mechanism; 61, galvanometer welding head; 62, fixing plate; 63, connecting piece I; 64, rubber ring; 65, laser refraction mirror; 66, optical fiber interface; 67, connecting piece II; 68, laser adjustment knob; 69, lens adjustment knob;

[0034] 7, fixing mechanism; 71, guide rail cylinder; 72, connecting slider; 73, adjustable elastic pressing device; 74, linear guide rail; 75, stress plate; 76, L-shaped pressing plate; 77, nitrogen gas blowing mechanism;

[0035] 8, display screen; 9, connecting column; 10, moving block; 11, L-shaped plate; 12, connecting plate. Detailed implementation manners

[0036] The following further describes this application in detail with reference to the attached drawings Figure 1 —4.

[0037] The embodiment of this application discloses a multi-axis linkage galvanometer welding machine.

[0038] Embodiment 1

[0039] Referring to Figure 1 , a multi-axis linkage galvanometer welding machine includes a main chassis body 1. The main chassis body 1 is rectangular and its surface is coated with a layer of epoxy paint. Three sides of the upper end surface of the main chassis body 1 are welded and fixed with a laser protection plate 2. On the outer surface of the main chassis body 1, on one side of the laser protection plate 2, there is a display screen 8 that can be rotated to adjust the orientation, as well as a supporting keyboard and bracket.

[0040] It should be noted that a computer control system and a connection circuit are installed inside the main chassis body 1. Since it is a conventional technology, its principle will not be described in detail.

[0041] Through the above settings, the epoxy material on the surface of the main chassis body 1 enables it to have the effects of anti-vibration, corrosion resistance, impact resistance, dust prevention, waterproofing, and radiation protection, thereby effectively protecting the internal computer control system and connection circuit. The connection circuit is connected to the display screen 8, which is convenient for personnel to operate and debug system parameters. At the same time, the laser protection plate 2 blocks the thermal flying debris generated during welding, effectively protecting the safety of the operator.

[0042] Referring to Figure 1 , 2, on both sides of the inner wall of the laser protection plate 2 on the upper end surface of the chassis main body 1, Y-axis moving mechanisms 3 are fixedly connected by screws. A moving block 10 is threadedly connected to the screw rod surfaces in the two Y-axis moving mechanisms 3. And a connecting column 9 is welded and fixed to the upper end surfaces of the two moving blocks 10. The bottoms of the tops of the two connecting columns 9 are fixedly connected to the housing of the X-axis moving mechanism 4. An L-shaped plate 11 is threadedly connected to the surface of the screw rod of the X-axis moving mechanism 4. And one end of the L-shaped plate 11 away from the X-axis moving mechanism 4 is fixedly connected to one side of the housing of the Z-axis moving mechanism 5. A moving block 10 is also threadedly connected to the surface of the screw rod of the Z-axis moving mechanism 5. A connecting plate 12 is welded and fixed to the outer surface of the moving block 10 of the Z-axis moving mechanism 5.

[0043] It should be noted that the motors and power supply lines configured to rotate in the Y-axis moving mechanism 3, the X-axis moving mechanism 4, and the Z-axis moving mechanism 5 are all prior arts, and their principles will not be described in detail.

[0044] Through the above settings, the screw rod of the Y-axis moving mechanism 3 rotates to drive the moving block 10 to move along the Y-axis. The movement of the moving block 10 drives the connecting column 9, so that the X-axis moving mechanism 4 moves along the Y-axis. At the same time, the screw rod of the X-axis moving mechanism 4 rotates to drive the L-shaped plate 11 to move along the X-axis. The movement of the L-shaped plate 11 drives the Z-axis moving mechanism 5 to move along the X-axis. And the Z-axis moving mechanism 5 uses the L-shaped plate 11 as a support point, and the L-shaped plate 11 is connected to the X-axis moving mechanism 4 to form a fixation. As the screw rod of the Z-axis moving mechanism 5 rotates, it drives the housing of the Z-axis moving mechanism 5 to move up and down along the Z-axis, so that the connecting plate 12 has the function of moving in three directions of X, Y, and Z axes.

[0045] Refer to Figure 1 , 3 , the welding mechanism 6 includes a galvanometer welding head 61 fixedly arranged on the side of the connecting plate 12 away from the Z-axis moving mechanism 5. A fixing plate 62 is fixedly connected by screws on one side of the outer surface of the galvanometer welding head 61. The middle of the fixing plate 62 has a through hole, and the through hole is butted with the access port of the galvanometer welding head 61. A connecting piece one 63 is welded and fixed to the surface of the fixing plate 62 away from the galvanometer welding head 61. The middle of the connecting piece one 63 also has a through hole, which is communicated and aligned with the through hole of the fixing plate 62. One end of the connecting piece one 63 away from the fixing plate 62 is connected and fixed at a 90° angle with a connecting piece two 67. A lens for converging the light beam is arranged in the hole of the connecting piece two 67. A laser adjustment knob 68 is fixedly arranged on one side surface of the connecting piece two 67. The rotating rod of the laser adjustment knob 68 passes through the connecting piece two 67 and is fixedly connected to the outer frame of the lens. A fiber optic interface 66 is fixedly arranged on the top of the connecting piece two 67. The fiber optic interface 66 is connected to an external laser generator for transmitting laser.

[0046] With the above settings, the laser is transmitted through the optical fiber interface 66 into the hole of the second connector 67. Rotate the laser adjustment knob 68 to adjust the angle of the lens in the hole of the second connector 67, so as to set the laser intensity. The laser is refracted through the second connector 67 to the first connector 63, and finally passes through the fixing plate 62 and shoots into the galvanometer welding head 61 for welding operation. At the same time, the galvanometer welding head 61 and the connecting plate 12 are integrally fixed, so as to move in the X, Y, and Z axis directions following the connecting plate 12.

[0047] Refer to Figure 1 、 3 On the other side surface of the first connector 63 relative to the second connector 67, a rubber ring 64 is fixedly connected around. On the other side of the rubber ring 64 away from the first connector 63, a laser refraction mirror 65 is fixedly glued. A lens adjustment knob 69 is rotatably connected to the top of the laser refraction mirror 65, and the rotating rod of the lens adjustment knob 69 is fixedly connected to the inner frame of the laser refraction mirror 65.

[0048] With the above settings, when the laser enters the first connector 63 from the second connector 67, it shoots straight into the inclined surface of the lens of the laser refraction mirror 65. Then the laser refraction mirror 65 refracts the laser to make it turn 90° and shoot into the through hole of the first connector 63. At the same time, rotate the lens adjustment knob 69 to control the angle of the lens in the laser refraction mirror 65, so as to adjust the laser refraction angle.

[0049] Refer to Figure 1 、 4 The fixing mechanism 7 includes a guide rail cylinder 71 fixedly arranged on the surface of the connecting plate 12 on the side away from the galvanometer welding head 61. The guide rail configured by the guide rail cylinder 71 is at a 90° angle to the upper end surface of the chassis main body 1. A connecting slider 72 is movably connected in the guide rail track. On the side surface of the connecting slider 72 away from the guide rail cylinder 71, an adjustable elastic pressing device 73 is fixedly arranged. The telescopic end of the adjustable elastic pressing device 73 is vertically downward and its end is fixedly connected with a force receiving plate 75. A linear guide rail 74 is fixedly arranged at one end of the connecting slider 72 surface away from the adjustable elastic pressing device 73. The convex block on the side surface of the force receiving plate 75 is movably connected with the track of the linear guide rail 74. An L-shaped pressing plate 76 is fixed to the bottom of the side surface of the force receiving plate 75 with screws. A convex hole is provided on the L-shaped convex surface on one side of the L-shaped pressing plate 76, and the convex hole is aligned with the laser port at the bottom of the galvanometer welding head 61.

[0050] It should be noted that the electrical systems connected to the top of the guide rail cylinder 71 and the linear guide rail 74, and a nitrogen blowing mechanism 77 is fixedly arranged on the surface of the L-shaped pressing plate 76 on the side of the convex hole are all conventional existing technologies, and their structural principles will not be described in detail.

[0051] With the above settings, when the connecting plate 12 descends, it drives the guide rail cylinder 71 to descend synchronously. While descending, the guide rail cylinder 71 controls the connecting slider 72 to move downward along the guide rail track. The connecting slider 72 drives the adjustable elastic presser 73 to descend synchronously. The operator controls the adjustable elastic presser 73 to extend through the display screen 8, so that the force-bearing plate 75 presses downward, thereby fixing the material. At the same time, the laser enters the material welding point through the convex holes on the surface of the force-bearing plate 75 for welding.

[0052] Among them, the Y-axis moving mechanism 3, X-axis moving mechanism 4, Z-axis moving mechanism 5, galvanometer welding head 61, laser refraction mirror 65, and adjustable elastic presser 73 of this device are all prior arts, and their structural principles will not be elaborated here.

[0053] The implementation principle of a multi-axis linkage galvanometer welding machine in an embodiment of this application is as follows: When using this device, the material to be welded needs to be placed on the upper surface of the chassis main body 1 first. Then, the operator debugs the control system to start the Y-axis moving mechanism 3, which drives the two moving blocks 10 to move along the Y-axis. As the two moving blocks 10 move, they drive the two connecting columns 9 to move synchronously. The two connecting columns 9 then drive the X-axis moving mechanism 4 to move along the Y-axis. At the same time, the X-axis moving mechanism 4 starts synchronously during the movement, driving the L-shaped plate 11 to move along the X-axis. The L-shaped plate 11 drives the housing of the Z-axis moving mechanism 5 to move along the X-axis synchronously, so that the galvanometer welding head 61 integrally connected to the Z-axis moving mechanism 5 moves.

[0054] When the laser port of the galvanometer welding head 61 is aligned with the material welding point, the Y-axis moving mechanism 3 and X-axis moving mechanism 4 stop running and remain stationary. The operator debugs the control system to start the Z-axis moving mechanism 5 and adjustable elastic presser 73 synchronously. The Z-axis moving mechanism 5 drives the guide rail cylinder 71 to move along the Z-axis for a substantial descent. The telescopic end of the adjustable elastic presser 73 extends, driving the L-shaped pressing plate 76 to descend for precise movement. When the lower end surface of the L-shaped pressing plate 76 abuts against the surface of the material, the Z-axis moving mechanism 5 and adjustable elastic presser 73 stop running and remain stationary, thus completing the fixation of the material.

[0055] Then, the control system sends a signal to control the laser generator to emit laser. The laser enters the second connecting piece 67 through the optical fiber interface 66, and then is refracted by the laser refraction mirror 65 by 90°, and then enters the hole of the first connecting piece 63 and enters the galvanometer welding head 61. Finally, it is emitted from the laser port at the bottom of the galvanometer welding head 61, passes through the convex hole of the L-shaped pressing plate 76 and welds with the material.

[0056] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A multi-axis linkage galvanometer welding machine, characterized in that: The invention comprises a chassis body (1), wherein both sides of the upper end surface of the chassis body (1) are provided with Y-axis moving mechanisms (3), the tops of the two Y-axis moving mechanisms (3) are provided with matching X-axis moving mechanisms (4), one side of the X-axis moving mechanism (4) is provided with a Z-axis moving mechanism (5), the side of the Z-axis moving mechanism (5) opposite to the X-axis moving mechanism (4) is provided with a connecting plate (12), and the surface of the connecting plate (12) is provided with a welding mechanism (6); The welding mechanism (6) comprises a galvanometer welding head (61) fixedly mounted on one side surface of the connecting plate (12); a first connector (63) is fixedly mounted on one side surface of the galvanometer welding head (61); a second connector (67) is fixedly mounted on the top of the first connector (63); and a fiber optic interface (66) is disposed on the top of the second connector (67); The fixing mechanism (7) comprises a guide rail cylinder (71) fixed on the bottom surface of the connecting plate (12), one side of the guide rail cylinder (71) is connected to an adjustable elastic clamp (73), and the bottom of the adjustable elastic clamp (73) is fixed to an L-shaped pressing plate (76).

2. The multi-axis linkage galvanometer welding machine according to claim 1, characterized in that: The surfaces of the moving shafts of the two Y-axis moving mechanisms (3) and the Z-axis moving mechanism (5) are both threadedly connected with moving blocks (10); the tops of the moving blocks (10) on the moving shafts of the two Y-axis moving mechanisms (3) are fixedly provided with connecting columns (9); and the tops of the two connecting columns (9) are fixedly connected to the bottom of the X-axis moving mechanism (4).

3. The multi-axis linkage galvanometer welding machine according to claim 2, characterized in that: One side of the outer surface of the moving block (10) on the moving shaft of the Z-axis moving mechanism (5) is fixedly connected to the connecting plate (12); an L-shaped plate (11) is fixedly provided on the other side of the outer surface of the Z-axis moving mechanism (5) relative to the moving block (10); the top of the L-shaped plate (11) is threadedly connected to the moving shaft of the X-axis moving mechanism (4).

4. The multi-axis linkage galvanometer welding machine according to claim 1, characterized in that: The welding mechanism (6) further comprises a fixing plate (62) fixedly arranged on one side of the interface of the galvanometer welding head (61); the fixing plate (62) is fixedly connected to a connecting piece 1 (63) on one side relative to the galvanometer welding head (61); a rubber ring (64) is fixedly connected to the other end of the connecting piece 1 (63) relative to the fixing plate (62); a laser refraction mirror (65) is fixedly arranged on the other side of the rubber ring (64).

5. The multi-axis linkage galvanometer welding machine according to claim 4, characterized in that: The top of the laser refraction mirror (65) is connected to a lens adjustment knob (69), and the middle of the surface of the second connecting member (67) is connected to a laser adjustment knob (68).

6. The multi-axis linkage galvanometer welding machine according to claim 1, characterized in that: The fixing mechanism (7) also includes a connecting slider (72) movably arranged in the track of the guide cylinder (71), and the top of the side wall of the connecting slider (72) is fixedly connected to an adjustable elastic tightener (73).

7. The multi-axis linkage galvanometer welding machine according to claim 6, characterized in that: A linear guide rail (74) is fixedly provided at the bottom of the side wall of the connecting slide block (72), a force-bearing plate (75) is movably provided in the track of the linear guide rail (74), one side of the force-bearing plate (75) is fixedly connected to an L-shaped pressing plate (76), and a nitrogen blowing mechanism (77) is fixedly provided on the surface of the L-shaped pressing plate (76).

8. The multi-axis linkage galvanometer welding machine according to claim 1, characterized in that: A laser protection plate (2) is fixedly provided on the upper end surface of the chassis body (1) around two Y-axis moving mechanisms (3), and an adjustable display screen (8) is provided on the outer surface of the chassis body (1) on one side of the laser protection plate (2).

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