Integrated laser head module and laser processing equipment

Abstract

The invention discloses an integrated laser head module and laser processing equipment, and belongs to the field of laser processing. According to the technical scheme, the integrated laser head module comprises a main body module, the main body module comprises a light path part and a transmission part, the light path part is provided with a collimation and alignment assembly mounting groove and a focusing assembly mounting groove, and the collimation and alignment assembly mounting groove is located above the focusing assembly mounting groove; a collimation and alignment assembly is installed in the collimation and alignment assembly installation groove, and a focusing assembly is installed in the focusing assembly installation groove. A transmission assembly action space is arranged in the transmission part, a transmission assembly is installed in the transmission assembly action space, the transmission assembly action space communicates with the focusing assembly installation groove, and the transmission assembly is connected with a focusing lens in the focusing assembly. According to the scheme, the integral main body module is used as an installation foundation, so that the structure and the assembly process of the laser head module are simplified; each part takes the main body module as a mounting basis, so that the problem of error accumulation is eliminated, and the machining precision is improved.

Description

Technical Field

[0001] The present invention relates to the field of laser processing, and in particular to an integrated laser head module and laser processing equipment. Background Art

[0002] Laser cutting has the characteristics of high efficiency, high precision, and strong material adaptability, and is widely used in industrial production. It is mainly used for cutting and processing metal and non-metal materials, such as steel plates, stainless steel, aluminum alloys, ceramics, plastics, etc. Compared with traditional mechanical cutting equipment, laser cutting has high production efficiency and high cutting precision, and can complete some complex processing tasks that are difficult to complete with traditional equipment. Therefore, laser cutting is increasingly widely used in the fields of automobiles, aerospace, electronics, manufacturing, etc.

[0003] The laser head module is the output component of the laser cutting equipment, which mainly includes optical path components such as protective lenses, collimating lenses, focusing lenses, nozzles, as well as auxiliary systems such as cooling and protective gas.

[0004] At present, the main structure of the laser head module is to assemble the above modules directly. For example, the collimator lens and the focusing lens are each a module unit, and the shell parts of the two are directly connected. In this assembly mode, the number of main parts contained in the laser head module exceeds 40, and with the increase of processing power and user needs, the types of parts are increasing.

[0005] As a result, problems such as complicated assembly process, assembly quality, and error accumulation of laser head modules have become increasingly serious. Summary of the invention

[0006] The present invention provides an integrated laser head to solve the problem that the current laser head module assembly process is complicated and the large number of components leads to large assembly errors.

[0007] In order to solve the above problems, the technical solution adopted by the present invention is an integrated laser head module, including a main body module, the main body module includes an optical path part and a transmission part: a through optical path channel is arranged from top to bottom in the optical path part, and an alignment and centering component installation groove and a focusing component installation groove are opened inward on the side of the optical path part, the alignment and centering component installation groove and the focusing component installation groove are connected with the optical path channel, the alignment and centering component installation groove is located above the focusing component installation groove, the alignment and centering component is installed in the alignment and centering component installation groove, and the focusing component is installed in the focusing component installation groove; a transmission component action space is arranged inside the transmission part, the transmission component action space is open to the outside and is installed with a transmission component, the transmission component action space is connected with the focusing component installation groove, and the transmission component is connected with a focusing mirror in the focusing component. The laser head module of this solution adopts an integral main body module as the installation basis, on which installation slots for functional components are processed. When assembling the whole machine, each component can be inserted into the corresponding slot and fixed, which greatly simplifies the structure and assembly process of the laser head module. At the same time, each component uses the main body module as the installation basis and is independent of each other, eliminating the problem of error accumulation and improving processing accuracy.

[0008] Preferably, the optical path portion is further provided with a collimation protection component installation slot and a focusing protection component installation slot, wherein the collimation protection component installation slot is located above the collimation centering component installation slot, and the collimation protection component is installed in the collimation protection component installation slot; the focusing protection component installation slot is located below the focusing component installation slot, and the focusing protection component is installed in the focusing protection component installation slot. The protective mirror also adopts a slot installation structure for easy replacement.

[0009] Preferably, the main body module comprises a first main body and a second main body arranged in parallel, the collimation and centering assembly mounting slot and the focusing assembly mounting slot are provided on the first main body, and the transmission assembly action space is provided on the second main body. The main body module adopts a two-part split structure, which greatly reduces the manufacturing process difficulty of the main body module and reduces the manufacturing cost.

[0010] Preferably, an installation window is opened on the top of the transmission part, and the installation window is connected to the action space of the transmission component. The transmission component includes a motor, and the motor is installed above the transmission part. The output shaft of the motor extends into the action space of the transmission component through the installation window and is connected to a screw assembly. The nut seat of the screw assembly is connected to the focusing lens seat in the focusing assembly, and the focusing lens is installed in the focusing lens seat.

[0011] Preferably, a connecting plate is connected to the nut seat, a connecting block is installed on the connecting plate, the connecting block is fixedly connected to the focusing lens seat, a slide rail is provided on the inner wall of the transmission component action space, a slider is provided on the connecting block, and the slider is slidably connected to the slide rail.

[0012] Preferably, a sensing rod is provided on the connecting plate or the connecting block, and a limit switch is provided in the action space of the transmission component, and the limit switch is used to detect the position of the sensing rod and serve as a safety limit and focus position reference.

[0013] Preferably, a cooling assembly is installed on the side of the main module, and the cooling assembly includes a cover plate and a cooling plate, a cooling circuit is formed between the cover plate and the cooling plate, a pipe joint is provided on the cover plate, and the cooling plate faces the inside of the main module. Based on the integral structure, the cooling assembly is externally placed, which reduces the risk of leakage and corrosion, and is more convenient to replace.

[0014] Preferably, the bottom surface of the main body module is also provided with an air path component, and the air path component is located at the lower end of the optical path channel.

[0015] Preferably, the connecting block is U-shaped, the slider is located in the groove of the U-shape, and both ends of the U-shape are connected to the focusing lens seat, thereby reducing the lateral width of the mechanism and thus reducing the overall volume of the laser head module.

[0016] On the other hand, the present invention also provides a laser processing device, which adopts the above-mentioned integrated laser head module.

[0017] It can be seen from the above technical scheme that the advantages of the present invention are: the laser head module of this scheme changes the traditional structure and assembly form, sets a separate main body module as the installation basis, and installs each functional component on the main body module, which reduces the number of overall parts and simplifies the assembly process; the functional components are installed in a plug-in manner, which is convenient for disassembly, maintenance and replacement; each component is installed on the main body module, which eliminates the problem of error accumulation and improves the assembly accuracy. At the same time, the bonding surface is reduced and the sealing of the machine head is improved; the cooling component is modularly externalized to reduce the risk of overall structural corrosion caused by aging, and the overall module can be replaced during replacement, which is convenient and efficient; therefore, the laser processing equipment provided by the present invention has higher processing accuracy and is more convenient to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 It is a structural diagram of embodiment 1 of the present invention.

[0020] Figure 2 It is a structural schematic diagram of the main module in the first embodiment of the present invention.

[0021] Figure 3 It is a schematic diagram of the structure of the first main body in the second embodiment of the present invention.

[0022] Figure 4 It is a schematic diagram of the structure of the second main body in the second embodiment of the present invention.

[0023] Figure 5 It is a schematic diagram of the structure of the transmission assembly in Embodiments 1 and 2 of the present invention.

[0024] Figure 6 It is a schematic diagram of the structure of the cooling assembly in Embodiments 1 and 2 of the present invention.

[0025] Description of main reference numerals 1. Main module, 2. Alignment protection assembly, 3. Alignment centering assembly, 4. Focusing assembly, 5. Focusing protection assembly, 6. Transmission assembly, 7. Cooling assembly, 8. Gas path assembly, 11. Optical fiber installation position, 12. Alignment protection assembly installation slot, 13. Alignment centering assembly installation slot, 14. Optical path channel, 15. Installation window, 16. Transmission assembly action space, 17. Focusing assembly installation slot, 18. Whole machine installation surface, 21. First main body, 22. Second main body, 31. Motor, 32. Motor mounting plate, 33. Connecting plate, 34. Limit switch, 35. Slide rail, 36. Connecting block, 37. Focusing lens seat, 41. Cover plate, 42. Cooling plate, 43. Pipe joint. DETAILED DESCRIPTION

[0026] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0027] Embodiment 1 like Figure 1 , 2 As shown, an integrated laser head includes a main body module 1, which is L-shaped and includes an optical path part on the left side of the figure and a transmission part on the right side of the figure: A through optical path channel 14 is arranged from top to bottom in the optical path part. On the top surface of the optical path part, the upper end position of the optical path channel 14 is set as an optical fiber installation position 11 for connecting with the laser BOC. The optical path channel 14 is through downward, and the side surface of the optical path part is provided with a collimation protection component installation groove 12, a collimation adjustment component installation groove 13, a focusing component installation groove 17 and a focusing protection component installation groove. The collimation protection component installation groove 12, the collimation adjustment component installation groove 13, the focusing component installation groove 17 and the focusing protection component installation groove are arranged in sequence from top to bottom, and the collimation protection component installation groove 12, the collimation adjustment component installation groove 13, the focusing component installation groove 17 and the focusing protection component installation groove are all connected to the optical path channel. An air path component 8 is also arranged on the bottom surface of the main body module 1, and the air path component 8 is located at the lower end of the optical path channel.

[0028] A collimation protection component 2 is installed in the collimation protection component installation groove 12, which performs the first protection on the optical path channel 14 structure during cutting activities; a collimation centering component 3 is installed in the collimation centering component installation groove 13, which is responsible for the centering function and achieves the purpose of overall optical path coaxiality by fine-tuning the position of the lens group; a focusing component 4 is installed in the focusing component installation groove 17, and the position of the focusing component is adjusted as needed to achieve the focal position required for cutting; a focusing protection component 5 is installed in the focusing protection component installation groove, which is fixed with screws that will not fall out.

[0029] The collimation protection component 2 and the focusing protection component 5 adopt a bracket-lens-pressure ring structure; the collimation centering component 3 and the focusing component 4 adopt a bracket-lens barrel-pressure ring structure, the lens group is arranged in the lens barrel, and the lens barrel is installed on the bracket.

[0030] A transmission component action space 16 is provided inside the transmission part, and the transmission component action space 16 is connected to the focusing component installation groove 17. The transmission component 6 is installed in the transmission component action space 16. Specifically, an installation window 15 is opened on the top surface of the transmission part, and the installation window 15 is connected to the transmission component action space. Figure 5As shown, the transmission assembly 6 includes a motor 31, which is installed above the transmission part through a motor mounting plate 32. The output shaft of the motor 31 extends into the transmission assembly action space through the mounting window 15 and is connected to a lead screw assembly. A connecting plate 33 is connected to the nut seat, and a connecting block 36 is installed on the connecting plate 33. The connecting block 36 is fixedly connected to a focusing lens seat 37. A slide rail 35 is provided on the inner wall of the transmission assembly action space 16, and a slider is provided on the connecting block 36. The slider is slidably connected to the slide rail 35. The connecting block is U-shaped, and the slider is located in the U-shaped groove. The two ends of the U-shaped are connected to the focusing lens seat 37, and a focusing lens is provided in the focusing lens seat 37. Further, a sensing rod is provided on the connecting plate 33 or the connecting block 36, and a limit switch 34 is provided in the transmission assembly action space 16. The limit switch 34 is used to detect the position of the sensing rod. The side of the transmission part is processed into a whole machine installation surface 18 for connecting the whole laser processing equipment.

[0031] A cooling assembly 7 is installed on the side of the main module. Figure 6 As shown, the cooling assembly includes a cover plate 41 and a cooling plate 42, a cooling circuit is formed between the cover plate 41 and the cooling plate 42, a pipe joint 43 is provided on the cover plate 41, the cooling plate 42 faces the inside of the main module 1, and the cooling plate 42 is preferably made of a stainless steel plate, which has good thermal conductivity and can resist the scouring and erosion of the coolant. A curved coolant circulation channel is provided on the surface of the cover plate 41 to increase the cooling area.

[0032] Embodiment 2 In the first embodiment, the main body module is an L-shaped overall structure. In this embodiment, the main body module is divided into two parts, such as Figure 3 , 4 As shown, the main body module includes a first main body 21 and a second main body 22 arranged in parallel, the first main body 21 is the optical path part in Example 1, the second main body 22 is the transmission part in Example 1, the alignment and centering component mounting groove and the focusing component mounting groove are opened on the first main body, and the transmission component action space is opened on the second main body.

[0033] In this embodiment, although the main body module is divided into two parts, it also greatly reduces the difficulty of molding, reduces material waste, and reduces manufacturing costs.

[0034] Embodiment 3 Based on the first and second embodiments, this embodiment further provides a laser processing device, which adopts the integrated laser head provided by the first or second embodiment.

[0035] It can be seen from the above embodiments that the beneficial effects of the present invention are that the laser head module of this scheme changes the traditional structure and assembly form, and sets a separate main body module as the installation basis, and installs each functional component on the main body module, which reduces the number of overall parts and simplifies the assembly process; the functional components are installed in a plug-in manner, which is convenient for disassembly, maintenance and replacement; each component is installed on the main body module, which eliminates the problem of error accumulation and improves the assembly accuracy. At the same time, the bonding surface is reduced and the sealing of the machine head is improved; the cooling component is modularly externalized to reduce the risk of overall structural corrosion caused by aging, and the overall module can be replaced during replacement, which is convenient and efficient; therefore, the laser processing equipment provided by the present invention has higher processing accuracy and is more convenient to maintain.

[0036] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An integrated laser head, characterized in that: It includes a main body module (1), which includes an optical path part and a transmission part: A through optical path passage (14) is provided in the optical path portion from top to bottom, and a collimation and centering component installation groove (13) and a focusing component installation groove (17) are provided on the side of the optical path portion facing inward, the collimation and centering component installation groove (13) and the focusing component installation groove (17) are connected to the optical path passage, the collimation and centering component installation groove (13) is located above the focusing component installation groove (17), the collimation and centering component installation groove (13) is installed with a collimation and centering component (3), and the focusing component installation groove (17) is installed with a focusing component (4); A transmission component action space (16) is provided inside the transmission part. The transmission component action space (16) is open to the outside and is installed with a transmission component (6). The transmission component action space (16) is communicated with a focusing component installation groove (17). The transmission component (6) is connected to a focusing mirror in the focusing component (4).

2. The integrated laser head according to claim 1, characterized in that: The optical path portion is also provided with a collimation protection component installation slot (12) and a focusing protection component installation slot (19); the collimation protection component installation slot (12) is located above the collimation centering component installation slot (13), and a collimation protection component (2) is installed in the collimation protection component installation slot (12); and the focusing protection component installation slot is located below the focusing component installation slot, and a focusing protection component (5) is installed in the focusing protection component installation slot.

3. The integrated laser head according to claim 1, characterized in that: The main body module (1) comprises a first main body (21) and a second main body (22) arranged in parallel, the alignment and centering component installation groove (13) and the focusing component installation groove (17) are provided on the first main body (21), and the transmission component action space (16) is provided on the second main body (22).

4. The integrated laser head according to claim 1, characterized in that: The top of the transmission part is provided with an installation window (15), the installation window (15) being connected to the action space of the transmission component, the transmission component (6) comprising a motor (31), the motor being installed above the transmission part, the output shaft of the motor (31) extending into the action space of the transmission component through the installation window (15) and being connected to a lead screw component, the nut seat of the lead screw component being connected to a focusing lens seat (37) in the focusing component, and the focusing lens being installed in the focusing lens seat.

5. The integrated laser head according to claim 4, characterized in that: A connecting plate (33) is connected to the nut seat, a connecting block (36) is mounted on the connecting plate (33), the connecting block (36) is fixedly connected to the focusing lens seat (37), a slide rail (35) is provided on the inner wall of the transmission component action space (16), a slider is provided on the connecting block (36), and the slider is connected to the slide rail (35) in a sliding fit.

6. The integrated laser head according to claim 5, characterized in that: A sensing rod is provided on the connecting plate (33) or the connecting block (36), and a limit switch (34) is provided in the transmission component action space (16). The limit switch (34) is used to detect the position of the sensing rod.

7. The integrated laser head according to claim 1, characterized in that: A cooling assembly (7) is installed on the side of the main module, the cooling assembly comprising a cover plate (41) and a cooling plate (42), a cooling circuit is formed between the cover plate (41) and the cooling plate (42), a pipe joint (43) is provided on the cover plate (41), and the cooling plate (42) faces the interior of the main module (1).

8. The integrated laser head according to claim 1, characterized in that: The bottom surface of the main body module (1) is also provided with an air path component (8), and the air path component (8) is located at the lower end of the optical path channel.

9. The integrated laser head according to claim 5, characterized in that: The connecting block is U-shaped, the sliding block is located in the U-shaped groove, and both ends of the U-shape are connected to the focusing lens seat (37).

10. A laser processing device, characterized in that: An integrated laser machine head as described in any one of claims 1 to 9 is used.

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