A laser welding robot

Abstract

This invention discloses a laser welding robot, including a cooling shell with an optical path channel formed along the axial direction inside the cooling shell. At least two mirrors are arranged sequentially on the optical path channel. The robot also includes two cooling pipes arranged on both sides of the mirrors. The cooling pipes are annular and arranged along the edges of the mirrors. Water inlets and outlets are formed on the cooling pipes respectively. The two cooling pipes are used to abut against both sides of the mirrors to restrict the movement of the mirrors within the optical path channel. The cooling pipes arranged on both sides of the mirrors can effectively cool the mirrors and obtain a large contact area with the mirrors, thereby achieving a better cooling effect.

Description

Technical Field

[0001] This invention relates to the field of laser processing technology, and more specifically to a laser welding robot. Background Technology

[0002] Laser welding refers to the process of using a high-energy laser beam to melt the surface of a part, and then moving the laser head to obtain a uniform weld line.

[0003] In order to adjust the beam, existing laser heads are equipped with multiple lenses to perform different optical path adjustment functions. However, since the beam itself has a large energy, the lens temperature will rise after passing through the lens, which will affect the lens's service life. Therefore, this needs to be improved. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a laser welding robot that can cool down lenses.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a laser welding robot, comprising a cooling shell, wherein an optical path channel is formed within the cooling shell along the axial direction, and at least two mirrors are arranged sequentially on the optical path channel, and further comprising two cooling pipes disposed on opposite sides of the mirrors, wherein the cooling pipes are annular and disposed along the edges of the mirrors, and wherein inlets and outlets are respectively formed on the cooling pipes, and the two cooling pipes are used to abut against the sides of the mirrors respectively to restrict the movement of the mirrors within the optical path channel.

[0006] The above technical solution expands the contact area with the mirror body through the cooling pipes on both sides, thereby achieving a good cooling effect. At the same time, the cooling pipes on both sides can fix the position of the mirror body to complete the installation. In addition, the setting of water inlet and outlet realizes the circulation of coolant in the cooling pipes, thereby ensuring the cooling effect.

[0007] As a further improvement of the present invention, it also includes a mounting bracket, which includes two annular mounting plates and a connecting assembly for connecting the two mounting plates. The connecting assembly is used to connect the two mounting plates and keep the distance between the two mounting plates fixed. The mounting plates are provided with mounting grooves corresponding to the cooling pipes, and the cooling pipes are snapped into the mounting grooves.

[0008] The above technical solution enables the installation of cooling pipes by setting up a mounting bracket. At the same time, the mounting bracket can effectively fix the mirror body. By controlling the distance between the two mounting plates through the connecting components, the defect of damage to the mirror body caused by the mounting plates pressing on the mirror body during installation can be avoided.

[0009] As a further improvement of the present invention, the connecting assembly includes a bolt, a nut, and a support tube. The two mounting plates extend outward from their adjacent sides to form abutting edges, which are used to abut the sides of the mirror body. The mounting plates are provided with through holes corresponding to the abutting edges. The support tube is disposed between the two mounting plates, and both ends of the support tube are used to abut the two mounting plates respectively to maintain a gap between the two mounting plates. One end of the bolt passes through the two through holes and the support tube and is connected to the nut.

[0010] The above technical solution can limit the lateral movement of the mirror body by setting the abutting edge, and then, together with the mounting plates set on both sides of the mirror body, completely limit the movement of the mirror body, so as to avoid the change of beam energy caused by the movement of the mirror body during the processing and thus avoid the occurrence of poor welding. At the same time, the abutting of the two ends of the support tube makes the overall structure more compact, so as to make the overall device smaller.

[0011] As a further improvement of the present invention, a cooling main circuit is provided inside the cooling housing, and multiple installation stations are provided inside the cooling housing along the axial direction. The mounting bracket is detachably connected to the installation stations. The cooling main circuit is provided with connection points corresponding to the multiple installation stations. After the mounting bracket is connected to the installation station, the water inlet and water outlet are connected to the connection points and water circulates through the cooling main circuit.

[0012] The above technical solution enables the adjustment of the mounting bracket position by setting up multiple installation stations, thereby adjusting the position of the mirror body along the axis of the cooling housing to adapt to different installation and usage requirements. At the same time, the water circulation of the cooling pipes under multiple installation stations is achieved by setting up the cooling main circuit and connection points to obtain a good cooling effect.

[0013] As a further improvement of the present invention, the cooling housing includes two shell parts that are joined together. The inner wall of the shell parts is provided with a plurality of arc-shaped grooves along the axial direction. The installation station is an annular groove formed by the two shell parts corresponding to two arc-shaped grooves joining together.

[0014] The above technical solution facilitates the installation and disassembly of the mounting bracket by using two housing components. At the same time, the interlocking of the two arc-shaped grooves limits the position of the mounting bracket to prevent it from shifting due to device movement.

[0015] As a further improvement of the present invention, the number of cooling channels is two and they are respectively installed in two housings.

[0016] The above technical solutions facilitate separate control and maintenance of the inlet and outlet water, thereby improving overall practicality.

[0017] As a further improvement of the present invention, the cooling pipe is provided with an insertion end corresponding to the inlet and outlet, and the cooling main circuit is provided with a connection hole corresponding to the connection point. The insertion end is used to insert into the connection hole, and a sealing block is also included. The sealing block is inserted into the connection hole and used to seal the connection hole.

[0018] The above technical solution can block unused connection holes with sealing blocks, and connect cooling pipes and cooling mains by setting the insertion end and connection hole to achieve water circulation cooling effect.

[0019] The beneficial effects of this invention are:

[0020] 1. The cooling pipes set on both sides of the mirror body can effectively cool the mirror body and obtain a large contact area with the mirror body, thereby achieving a better cooling effect.

[0021] 2. Limiting the distance between the two mounting plates by connecting the components can prevent the mounting plates on both sides from putting pressure on the lens and causing damage to the lens;

[0022] 3. By setting up multiple installation stations, the position of the mounting frame can be adjusted to adapt to the usage requirements of different focal length ranges. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall invention;

[0024] Figure 2 This is a schematic cross-sectional view of the entire invention;

[0025] Figure 3 for Figure 2 Enlarged view of section A;

[0026] Figure 4 This is a schematic diagram of the mounting bracket for the present invention;

[0027] Figure 5 This is a schematic diagram of the mounting plate of the present invention;

[0028] Figure 6 This is a schematic diagram of the housing component of the present invention.

[0029] Reference numerals: 1. Cooling housing; 2. Optical path channel; 3. Mirror body; 4. Cooling pipe; 5. Inlet; 6. Outlet; 7. Mounting bracket; 8. Mounting plate; 9. Connecting assembly; 10. Mounting groove; 11. Bolt; 12. Nut; 13. Support pipe; 14. Abutting edge; 15. Through hole; 16. Cooling main circuit; 17. Installation position; 18. Connection point; 19. Housing; 20. Arc groove; 21. Insertion end; 22. Connection hole; 23. Sealing block. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals.

[0031] like Figure 1-6 As shown, a laser welding robot includes a cooling shell 1, which is connected to a three-dimensional moving mechanism and moves in three dimensions under the drive of the three-dimensional moving mechanism. The three-dimensional moving mechanism can be any three-dimensional moving method in the prior art. An optical path channel 2 is formed in the cooling shell 1 along the axial direction. At least two mirrors 3 are arranged sequentially on the optical path channel 2. In this embodiment, the number of mirrors 3 is 3. It also includes two cooling pipes 4 arranged on both sides of the mirrors 3. The cooling pipes 4 are annular and arranged along the edge of the mirrors 3. Water inlets 5 and outlets 6 are formed on the cooling pipes 4 to allow water circulation in the cooling pipes 4. The two cooling pipes 4 are used to abut against the upper and lower sides of the mirrors 3 along the pipe channel direction to restrict the movement of the mirrors 3 in the optical path channel 2. In use, the cooling pipes 4 circulate water through the water inlets 5 and outlets 6. Since the cooling pipes 4 on both sides abut against the sides of the mirrors 3 respectively, the cooling pipes 4 on both sides can cool the sides of the mirrors 3 respectively, thereby enabling the mirrors 3 to obtain a better cooling effect.

[0032] Preferably, in order to install the cooling pipe 4, a mounting bracket 7 is also included. The mounting bracket 7 includes two annular mounting plates 8 and a connecting component 9 for connecting the two mounting plates 8. The connecting component 9 is used to connect the two mounting plates 8 and keep the distance between the two mounting plates 8 fixed. In this embodiment, the distance between the two mounting plates 8 is consistent with the thickness of the mirror body 3. The mounting plate 8 is provided with a mounting groove 10 corresponding to the cooling pipe 4, and the cooling pipe 4 is snapped into the mounting groove 10.

[0033] Preferably, in order to control the gap between the two mounting plates 8, the connecting assembly 9 includes a bolt 11, a nut 12, and a support tube 13. The side of the two mounting plates 8 that is close to each other extends outward to form an abutting edge 14. The abutting edge 14 is used to abut the side of the mirror body 3. The mounting plate 8 is provided with a through hole 15 corresponding to the abutting edge 14. The support tube 13 is provided between the two mounting plates 8. The two ends of the support tube 13 are used to abut the two mounting plates 8 respectively to maintain a gap between the two mounting plates 8. One end of the bolt 11 passes through the two through holes 15 and the support tube 13 and is connected to the nut 12. In use, support tubes 13 and bolts 11 of different lengths can be replaced to obtain different sizes of gaps between the two mounting plates 8, thereby adapting to mirror bodies 3 of different sizes.

[0034] Preferably, in order to adjust the position of the mounting bracket 7 and thus adjust the spacing between different lenses to achieve the adjustment of the laser focus, a cooling main circuit 16 is provided in the cooling housing 1. Multiple installation stations 17 are provided in the cooling housing 1 along the axial direction. The mounting bracket 7 is detachably connected to the installation stations 17. The cooling main circuit 16 is provided with connection points 18 corresponding to the multiple installation stations 17. After the mounting bracket 7 is connected to the installation station 17, the water inlet 5 and the water outlet 6 are connected to the connection points 18 and water is circulated through the cooling main circuit 16.

[0035] Preferably, in order to facilitate the installation of the mounting bracket 7 and the cooling housing 1, the cooling housing 1 includes two shell parts 19 that are joined together. The inner wall of the shell parts 19 is provided with a plurality of arc-shaped grooves 20 along the axial direction. The installation station 17 is an annular groove formed by the two shell parts 19 corresponding to the two arc-shaped grooves 20 joined together.

[0036] Preferably, there are two cooling mains 16, which are installed in two housings 19 respectively.

[0037] Preferably, the cooling pipe 4 is provided with an insertion end 21 corresponding to the inlet 5 and outlet 6, and the cooling main 16 is provided with a connection hole 22 corresponding to the connection point 18. The insertion end 21 is used to insert into the connection hole 22. It also includes a sealing block 23, which is inserted into the connection hole 22 and used to seal the connection hole 22. In use, the unused connection hole 22 is sealed by the sealing block 23, and the connection of the cooling pipe 4 and the cooling main 16 is realized by inserting the insertion end 21 into the connection hole 22. The two cooling mains 16 are respectively connected to the inlet pipe and the outlet pipe to realize the overall water circulation of the device.

[0038] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A laser welding robot, characterized in that: The device includes a cooling housing (1), an optical path channel (2) is formed inside the cooling housing (1) along the axial direction, at least two mirror bodies (3) are arranged sequentially on the optical path channel (2), and two cooling pipes (4) are arranged on both sides of the mirror body (3). The cooling pipes (4) are annular and arranged along the edge of the mirror body (3). The cooling pipes (4) are respectively formed with an inlet (5) and an outlet (6). The two cooling pipes (4) are used to abut against both sides of the mirror body (3) to restrict the movement of the mirror body (3) within the optical path channel (2). It also includes a mounting bracket (7), which includes two annular mounting plates (8) and a connecting component (9) for connecting the two mounting plates (8). The connecting component (9) is used to connect the two mounting plates (8) and keep the distance between the two mounting plates (8) fixed. The mounting plate (8) is provided with a mounting groove (10) corresponding to the cooling pipe (4), and the cooling pipe (4) is snapped into the mounting groove (10). The cooling housing (1) is provided with a cooling main circuit (16), and multiple installation stations (17) are provided in the cooling housing (1) along the axial direction. The mounting bracket (7) is detachably connected to the installation station (17). The cooling main circuit (16) is provided with connection points (18) corresponding to the multiple installation stations (17). After the mounting bracket (7) is connected to the installation station (17), the water inlet (5) and the water outlet (6) are connected to the connection points (18) and water circulates through the cooling main circuit (16). The cooling pipe (4) is provided with an insertion end (21) at the inlet (5) and outlet (6), and the cooling main pipe (16) is provided with a connection hole (22) at the connection point (18). The insertion end (21) is used to insert into the connection hole (22), and also includes a sealing block (23). The sealing block (23) is inserted into the connection hole (22) and used to seal the connection hole (22).

2. The laser welding robot according to claim 1, characterized in that: The connecting assembly (9) includes a bolt (11), a nut (12), and a support tube (13). The two mounting plates (8) extend outward from their close sides to form a contact edge (14), which is used to contact the side of the mirror body (3). The mounting plate (8) is provided with a through hole (15) corresponding to the contact edge (14). The support tube (13) is provided between the two mounting plates (8). The two ends of the support tube (13) are used to contact the two mounting plates (8) respectively to maintain a gap between the two mounting plates (8). One end of the bolt (11) passes through the two through holes (15) and the support tube (13) and is connected to the nut (12).

3. The laser welding robot according to claim 1, characterized in that: The cooling housing (1) includes two shell parts (19) that are joined together. The inner wall of the shell part (19) is provided with a plurality of arc grooves (20) along the axial direction. The installation station (17) is an annular groove formed by the two shell parts (19) and the two arc grooves (20) that are joined together.

4. A laser welding robot according to claim 3, characterized in that: The number of cooling mains (16) is 2, and they are installed in two housings (19) respectively.

Images