Heat dissipation structure of laser spot welder

Abstract

The utility model relates to the field of laser spot welding machines, and discloses a heat dissipation structure of a laser spot welding machine, which comprises a spot welding machine frame, a spot welding table, an air cooling mechanism and a spot welding mechanism are arranged on the upper end face of the spot welding machine frame, and a water cooling heat dissipation mechanism located under the spot welding table is arranged in an inner cavity of the spot welding machine frame. The spot welding table is provided with a locking part used for fixing a workpiece, the water-cooling heat dissipation mechanism comprises a cold water tank arranged in the spot welding rack, an inner cavity of the cold water tank is provided with a heat release disc, and the heat release disc is provided with a plurality of heat absorption pipes attached to the bottom wall of the spot welding table. The spot welding machine has the following advantages and effects that the heat dissipation performance is good, and the spot welding machine works more stably.

Description

Technical Field

[0001] The utility model relates to the technical field of laser spot welding machines, in particular to a heat dissipation structure of a laser spot welding machine. Background Art

[0002] The laser spot welding machine is mainly composed of a laser, power supply and control, cooling machine, light guide and focusing, and binocular stereo microscope observation. It has a compact structure and small size. The micro coordinate indicator coaxial with the laser beam makes it easy to position the workpiece without the need for special fixtures. The laser power, pulse frequency, and pulse width can all be preset and changed through the control panel. In addition, the overall heat dissipation performance of traditional spot welding machines is poor when in use, so heat can easily accumulate in the spot welding machine, affecting its good use condition.

[0003] In the existing technology, although some spot welding machines have heat dissipation functions, they only dissipate heat through simple air cooling, and their heat dissipation performance is poor. Heat accumulation will still occur, thereby affecting the normal use of the spot welding machine. Therefore, it is necessary to propose a heat dissipation structure of a laser spot welding machine to solve the above problem. Utility Model Content

[0004] The utility model aims to provide a heat dissipation structure of a laser spot welding machine, which has good heat dissipation performance and makes the spot welding machine work more stably.

[0005] The above technical objectives of the present utility model are achieved through the following technical solutions: a heat dissipation structure of a laser spot welding machine, comprising a spot welding frame, the upper end surface of the spot welding frame is provided with a spot welding table, an air cooling mechanism and a spot welding mechanism, the inner cavity of the spot welding frame is provided with a water-cooling heat dissipation mechanism located directly below the spot welding table, the spot welding table is provided with a locking component for fixing the workpiece, the water-cooling heat dissipation mechanism comprises a cold water tank arranged in the spot welding frame, the inner cavity of the cold water tank is provided with a heat release plate, a plurality of heat absorption tubes in contact with the bottom wall of the spot welding table are installed on the heat release plate, and a pushing device for driving the cold water tank to rise and fall is also provided in the spot welding frame.

[0006] By adopting the above technical solution, after the locking component fixes the welding workpiece on the spot welding table, the spot welding operation is carried out through the spot welding mechanism. When high temperature is generated, the air cooling mechanism performs air cooling and heat dissipation on the outside. When the heat dissipation performance needs to be increased, the pushing device pushes the cold water tank upward so that the top of each heat absorption tube abuts against the bottom wall of the spot welding table, absorbs the heat on the spot welding table and transfers it downward to the heat release plate. The cold water in the cold water tank absorbs the heat on the heat release plate, thereby greatly improving the heat dissipation effect of the spot welding table and making the spot welding work safer and more stable.

[0007] The utility model is further configured as follows: a main control box is provided on the left side of the spot welding frame, and a control panel is installed on the main control box.

[0008] By adopting the above technical solution, when operating the equipment, the staff can control the equipment through the main control box on the side to realize the spot welding operation of the workpiece.

[0009] The present invention is further configured as follows: a water inlet pipe is provided on the right side of the cold water tank, and the end of the water inlet pipe is connected to a water pump.

[0010] By adopting the above technical solution, the water pump is controlled and external cold water can be sent into the cold water tank through the water inlet pipe, thereby facilitating the addition of cold water into the cold water tank.

[0011] The utility model is further configured as follows: a cover plate is detachably mounted on the upper end of the cold water tank by means of bolts, and the heat absorption pipe passes through the cover plate and is fixedly connected thereto.

[0012] By adopting the above technical solution, the cover plate and the heat absorption tube can be removed as a whole by disassembling the bolts, making it convenient to clean and maintain the heat absorption tube and the cold water tank, thereby improving their heat absorption performance.

[0013] The utility model is further configured as follows: the pushing device includes a lifting plate horizontally arranged in the spot welding frame, two limit rods slidingly connected to the lifting plate are installed on the left side of the inner cavity of the spot welding frame, and a screw rod threadedly connected to the lifting plate is installed on the right side, and a driving part for controlling the rotation of the screw rod is provided at the right end of the spot welding frame.

[0014] By adopting the above technical solution, the driving part controls the rotation of the screw rod, and under the restriction of the two limit rods on the side, the lifting plate can be pushed up and down to lift the cold water tank, making it convenient for the overall maintenance of the water-cooling heat dissipation mechanism.

[0015] The utility model is further configured as follows: the driving member includes a worm rotatably arranged on the right side of the spot welding frame, the upper end of the screw is equipped with a worm wheel adapted to the worm, and the right end of the worm is equipped with a rotating handle.

[0016] By adopting the above technical solution, the worm is rotated by holding the rotating handle, and the meshing drives the worm wheel to rotate, so that the screw can rotate stably and the lifting and lowering displacement of the cold water tank can be controlled.

[0017] The utility model is further configured as follows: the locking component includes four fixing blocks circumferentially distributed on the end surface of the spot welding table, an electric telescopic rod is installed on the fixing block, and a pressing block is installed on the output end of the electric telescopic rod.

[0018] By adopting the above technical solution, the welding workpiece is placed on the spot welding table, and the electric telescopic rods on all sides are driven so that the clamping blocks clamp the workpiece from all sides and fix it on the spot welding table, which facilitates spot welding operations.

[0019] The utility model is further configured as follows: the air cooling mechanism includes a fixed plate installed at the top rear end of the spot welding frame, two fans are installed on the fixed plate, a synchronization mechanism is installed between the two fans, and a drive motor for driving one fan to rotate is installed on the back of the fixed plate.

[0020] By adopting the above technical solution, the rotation of the fan on one side is controlled by the driving motor, and under the action of the synchronization mechanism, the two fans rotate synchronously, thereby increasing the air cooling efficiency and improving the heat dissipation effect.

[0021] The utility model is further configured as follows: the synchronization mechanism includes synchronization wheels installed on the two fans, a synchronization belt is installed between the two synchronization wheels, and an air guide cover is also installed on the fixed plate.

[0022] By adopting the above technical solution, the synchronous wheel rotates through the rotation of the fan on one side, and the synchronous belt pulls the two synchronous wheels to rotate, thereby achieving simultaneous rotation of the two fans.

[0023] The present invention is further configured as follows: the spot welding mechanism includes an X-axis driving machine, a Y-axis driving machine and a Z-axis driving machine installed on the upper end of the spot welding table, and a laser spot welding head is installed on the output end of the Y-axis driving machine.

[0024] By adopting the above technical solution, the X-axis drive machine, the Y-axis drive machine and the Z-axis drive machine are all combined structures of motors and screw rods, which belong to the common existing technology. The only difference is that the positions of the screw rods correspond to the X-axis, Y-axis and Z-axis respectively, which can flexibly control the position of the laser spot welding head, making it convenient and flexible to realize spot welding operations on the workpiece.

[0025] The beneficial effects of the utility model are:

[0026] 1. The utility model controls the rotation of the fan on one side by driving the motor, and under the action of the synchronization mechanism, the two fans rotate synchronously, thereby increasing the air cooling efficiency and improving the air cooling and heat dissipation effect. When the heat dissipation performance needs to be increased, the cold water tank is pushed up to make the top of each heat absorption tube abut against the bottom wall of the spot welding table, absorbing the heat on the spot welding table and transferring it downward to the heat dissipation plate. The cold water in the cold water tank absorbs the heat on the heat dissipation plate, thereby greatly improving the heat dissipation effect of the spot welding table and making the spot welding work safer and more stable.

[0027] 2. The utility model rotates the worm by holding the rotating handle, and the meshing drives the worm wheel to rotate, so that the screw rotates stably. Under the restriction of the two limit rods on the side, the lifting plate can be pushed up and down to lift the cold water tank, making it convenient to maintain and clean the interior of the cold water tank and the overall structure such as the heat absorption pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is an overall structural diagram of the heat dissipation structure of a laser spot welding machine of the present invention.

[0030] Figure 2 This utility model Figure 1 The overall structure diagram of the water-cooling heat dissipation mechanism.

[0031] Figure 3 This utility model Figure 2 Connection diagram of the middle heat release plate and the heat absorption tube.

[0032] Figure 4 This utility model Figure 1 Structural diagram of the locking components.

[0033] Figure 5 This utility model Figure 1 The overall structure diagram of the wind cooling mechanism.

[0034] In the figure, 1. spot welding frame; 2. spot welding table; 3. air cooling mechanism; 31. fixing plate; 32. fan; 33. driving motor; 34. synchronous wheel; 35. synchronous belt; 36. air guide cover; 4. spot welding mechanism; 41. X-axis driving machine; 42. Y-axis driving machine; 43. Z-axis driving machine; 44. laser spot welding head; 5. water cooling mechanism; 51. cold water tank; 52. heat release plate; 53. heat absorption pipe; 54. water inlet pipe; 55. bolt; 56. cover plate; 6. locking component; 61. fixing block; 62. electric telescopic rod; 63. pressing block; 7. pushing device; 71. lifting plate; 72. limit rod; 73. screw; 74. worm; 75. worm gear; 76. rotating handle; 8. control main box; 81. control panel. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions of the present invention in conjunction with specific embodiments. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0036] like Figures 1 to 5As shown, a heat dissipation structure of a laser spot welding machine includes a spot welding frame 1. The upper end surface of the spot welding frame 1 is provided with a spot welding table 2, an air cooling mechanism 3 and a spot welding mechanism 4. The inner cavity of the spot welding frame 1 is provided with a water-cooling heat dissipation mechanism 5 located directly below the spot welding table 2. The spot welding table 2 is provided with a locking component 6 for fixing the workpiece. The water-cooling heat dissipation mechanism 5 includes a cold water tank 51 arranged in the spot welding frame 1, and the inner cavity of the cold water tank 51 is provided with a heat dissipation disk 52. The heat dissipation disk 52 is provided with a plurality of heat absorption tubes 53 that are in contact with the bottom wall of the spot welding table 2. The spot welding frame 1 is also provided with a pushing device 7 for driving the cold water tank 51 to rise and fall.

[0037] Furthermore, a main control box 8 is provided on the left side of the spot welding frame 1 , and a control panel 81 is installed on the main control box 8 .

[0038] Furthermore, a water inlet pipe 54 is provided on the right side of the cold water tank 51 , and the end of the water inlet pipe 54 is connected to a water pump.

[0039] Furthermore, a cover plate 56 is detachably mounted on the upper end of the cold water tank 51 via bolts 55 , and the heat absorption pipe 53 passes through the cover plate 56 and is fixedly connected thereto.

[0040] Furthermore, the pushing device 7 includes a lifting plate 71 horizontally arranged in the spot welding frame 1, two limit rods 72 slidingly connected to the lifting plate 71 are installed on the left side of the inner cavity of the spot welding frame 1, and a screw rod 73 threadedly connected to the lifting plate 71 is installed on the right side. The right end of the spot welding frame 1 is provided with a driving member for controlling the rotation of the screw rod 73.

[0041] Furthermore, the driving member includes a worm 74 rotatably arranged on the right side of the spot welding frame 1 , a worm wheel 75 adapted to the worm 74 is installed on the upper end of the screw rod 73 , and a rotating handle 76 is installed on the right end of the worm 74 .

[0042] Furthermore, the locking component 6 includes four fixing blocks 61 circumferentially distributed on the upper end surface of the spot welding table 2 , an electric telescopic rod 62 is installed on the fixing block 61 , and a pressing block 63 is installed at the output end of the electric telescopic rod 62 .

[0043] Furthermore, the air cooling mechanism 3 includes a fixed plate 31 installed at the top rear end of the spot welding frame 1, two fans 32 are installed on the fixed plate 31, a synchronization mechanism is installed between the two fans 32, and a drive motor 33 for driving one fan 32 to rotate is installed on the back of the fixed plate 31.

[0044] Furthermore, the synchronization mechanism includes synchronization wheels 34 installed on the two fans 32 , a synchronization belt 35 is installed between the two synchronization wheels 34 , and an air guide cover 36 is also installed on the fixing plate 31 .

[0045] Furthermore, the spot welding mechanism 4 includes an X-axis driver 41 , a Y-axis driver 42 and a Z-axis driver 43 installed on the upper end of the spot welding table 2 , and a laser spot welding head 44 is installed at the output end of the Y-axis driver 42 .

[0046] The working principle of the present invention is as follows: first, the workpiece is placed on the spot welding table 2, and the electric telescopic rods 62 on all sides are driven to make the pressing blocks 63 clamp the workpiece from all sides and fix it on the spot welding table 2. Then, the X-axis driving machine 41, the Y-axis driving machine 42 and the Z-axis driving machine 43 are used to control the position of the laser spot welding head 44 to perform spot welding on the workpiece. During spot welding, the driving motor 33 controls the rotation of the fan 32 on one side, and under the action of the synchronization mechanism, the two fans 32 rotate synchronously to increase the air cooling efficiency. When it is necessary to increase the heat dissipation performance, Push the cold water tank 51 upward so that the top of each heat absorption tube 53 abuts against the bottom wall of the spot welding table 2, absorbs the heat on the spot welding table 2 and transfers it downward to the heat release plate 52, and the heat on the heat release plate 52 is absorbed by the cold water in the cold water tank 51. Hold the rotating handle 76 to rotate the worm 74, and the meshing drives the worm gear 75 to rotate, so that the screw rod 73 rotates stably. Under the restriction of the two limit rods 72 on the side, the lifting plate 71 can be pushed up and down to make the cold water tank 51 rise and fall, which is convenient for maintenance and cleaning of the interior of the cold water tank 51 and the overall structure such as the heat absorption tube 53.

Claims

1. A heat dissipation structure of a laser spot welding machine, comprising a spot welding frame (1), characterized in that: The upper end surface of the spot welding frame (1) is provided with a spot welding platform (2), an air cooling mechanism (3) and a spot welding mechanism (4); the inner cavity of the spot welding frame (1) is provided with a water cooling heat dissipation mechanism (5) located directly below the spot welding platform (2); the spot welding platform (2) is provided with a locking component (6) for fixing a workpiece; the water cooling heat dissipation mechanism (5) includes a cold water tank (51) provided in the spot welding frame (1); the inner cavity of the cold water tank (51) is provided with a heat release plate (52); the heat release plate (52) is provided with a plurality of heat absorbing tubes (53) that are in contact with the bottom wall of the spot welding platform (2); and the spot welding frame (1) is also provided with a pushing device (7) for driving the cold water tank (51) to rise and fall.

2. The heat dissipation structure of a laser spot welding machine according to claim 1, characterized in that: A main control box (8) is provided on the left side of the spot welding frame (1), and a control panel (81) is installed on the main control box (8).

3. The heat dissipation structure of a laser spot welding machine according to claim 1, characterized in that: A water inlet pipe (54) is provided on the right side of the cold water tank (51), and the end of the water inlet pipe (54) is connected to a water pump.

4. The heat dissipation structure of a laser spot welding machine according to claim 3, characterized in that: A cover plate (56) is detachably mounted on the upper end of the cold water tank (51) via bolts (55), and the heat absorption pipe (53) passes through the cover plate (56) and is fixedly connected thereto.

5. The heat dissipation structure of a laser spot welding machine according to claim 1, characterized in that: The pushing device (7) comprises a lifting plate (71) horizontally arranged in the spot welding frame (1); two limiting rods (72) slidably connected to the lifting plate (71) are installed on the left side of the inner cavity of the spot welding frame (1); a screw rod (73) threadedly connected to the lifting plate (71) is installed on the right side; and a driving member for controlling the rotation of the screw rod (73) is provided at the right end of the spot welding frame (1).

6. The heat dissipation structure of a laser spot welding machine according to claim 5, characterized in that: The driving member comprises a worm (74) rotatably arranged on the right side of the spot welding frame (1); a worm wheel (75) adapted to the worm (74) is installed at the upper end of the screw rod (73); and a rotating handle (76) is installed at the right end of the worm (74).

7. The heat dissipation structure of a laser spot welding machine according to claim 1, characterized in that: The locking component (6) comprises four fixed blocks (61) circumferentially distributed on the upper end surface of the spot welding table (2); an electric telescopic rod (62) is mounted on the fixed block (61); and a pressing block (63) is mounted on the output end of the electric telescopic rod (62).

8. The heat dissipation structure of a laser spot welding machine according to claim 1, characterized in that: The air cooling mechanism (3) comprises a fixing plate (31) mounted on the top rear end of the spot welding frame (1); two fans (32) are mounted on the fixing plate (31); a synchronization mechanism is mounted between the two fans (32); and a driving motor (33) for driving one fan (32) to rotate is mounted on the back of the fixing plate (31).

9. The heat dissipation structure of a laser spot welding machine according to claim 8, characterized in that: The synchronization mechanism comprises a synchronization wheel (34) mounted on two fans (32), a synchronization belt (35) is mounted between the two synchronization wheels (34), and an air guide cover (36) is also mounted on the fixed plate (31).

10. The heat dissipation structure of a laser spot welding machine according to claim 1, characterized in that: The spot welding mechanism (4) comprises an X-axis driving machine (41), a Y-axis driving machine (42) and a Z-axis driving machine (43) installed on the upper end of the spot welding table (2); a laser spot welding head (44) is installed at the output end of the Y-axis driving machine (42).

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