A high-precision cutting front and back surface alignment device and method
By using a high-precision cutting front and back facing position device in the cutting process of precision automobile parts, the laser module and optical lens are used to divide the laser into two beams, and the mirror acts on the front and back side of the part to form a cutting auxiliary line, the problem of inaccurate front and back facing position in the prior art is solved, and an efficient and accurate cutting process is achieved.
Patent Information
- Application Number
- CN202411982800.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-04-04
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the high-precision cutting process of automotive precision components, it is difficult for the prior art to achieve high-precision front and reverse facing position, especially in semi-transparent cutting processes, the error of the visual system leads to inaccurate cutting path position.
A high-precision cutting front- and back facing device is adopted, which includes a main body frame, a laser module, a semi-transmissive half-reflective mirror, a front-facing mirror and a reverse mirror. The laser light is emitted through the laser module, and the laser light is divided into two beams using a semi-transmissive half-reflective mirror, and the front and back mirrors are acted on the front and back of the part to form a cutting auxiliary line. The camera module records and compares these lines to ensure the accurate alignment of the cutting path.
High-precision front-and-negative facing position is achieved, cutting errors are reduced, and the efficiency and accuracy of the cutting process are improved.
Smart Images
Figure CN119747913A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of high-precision cutting alignment, and in particular to a high-precision cutting front and back surface alignment device and method. Background Art
[0002] Automobiles are high-tech manufacturing products. The automobile industry is a highly complex and sophisticated industry involving multiple key technologies and manufacturing links, each of which requires high-precision control and strict quality management. In the high-precision cutting of automobile precision parts, some cutting processes cannot perform full-transparent cutting of the parts, and semi-transparent cutting of the front and back sides of the parts is required. The visual system is often used to position the cutting path (cut the front side, use the front camera to align the chip cutting path on the front side of the part; cut the back side, use the back camera to align the chip cutting path on the front side of the part) to achieve the overlap of the front and back cutting paths and ensure that the cutting paths are vertical and without taper. Using a visual positioning system, such as using a bottom camera to capture the position of the bottom cutting path, and using the front camera to capture the auxiliary line of the front cutting path for alignment, there is an error problem. Summary of the invention
[0003] The purpose of the present invention is to provide a high-precision cutting front and back surface alignment device and method to solve the problems mentioned in the above process.
[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-precision cutting front and back surface positioning device, comprising a main body frame and a part body, a laser module is arranged inside the main body frame, a semi-transparent and semi-reflective mirror is arranged on the side of the laser module, the semi-transparent and semi-reflective mirror and the laser module are both movable structures, mounting grooves are arranged on the upper and lower sides of the main body frame, a front reflector and a rear reflector are arranged inside the two mounting grooves respectively, mounting blocks are arranged on the front reflector and the rear reflector, the mounting blocks are movable on the mounting grooves, a workbench is arranged on the inner side of the main body frame, an adjustment groove is arranged on the workbench, a placing ring is arranged inside the adjustment groove, a placing table is arranged at the bottom of the placing ring, the part body is placed on the placing table, the bottom of the placing table is a hollow structure, and a camera module and a cutting head are arranged on the upper and lower sides of the workbench.
[0005] Preferably, a protective frame is arranged outside the main frame, a glass window is arranged on the protective frame, and a supporting column is arranged at the bottom of the main frame.
[0006] Preferably, a mounting column is provided inside the main frame, a mounting tube is provided on the mounting column, a motor is provided on the mounting tube, a connecting piece is provided on the motor, and the laser module is provided on the connecting piece.
[0007] Preferably, a connecting rod is provided on the inner side of the main frame, a bayonet is provided on the connecting rod, a latch is provided on one side of the semi-transparent and semi-reflective mirror, the latch is latched into the bayonet and rotated and fixed by friction, and a knob is provided on the other side of the semi-transparent and semi-reflective mirror.
[0008] Preferably, a swivel opening is provided on the outer side of the installation groove, a sliding rod is provided on the inner side of the installation groove, a threaded rod is provided on the swivel opening, swivel bolts are provided on both sides of the threaded rod, and the swivel bolts are clamped to the outer sides of the swivel openings on both sides.
[0009] Preferably, a sliding opening is provided on the mounting block, a screw opening is provided on the outer side of the sliding opening, the sliding opening slides on the sliding rod, and the screw opening is threadedly connected to the threaded rod.
[0010] Preferably, sliders are provided on both sides of the placement ring, and a slide groove is provided inside the adjustment groove, and the slider slides on the slide groove.
[0011] Preferably, a mounting opening is provided on one side of the adjustment slot, an electric push rod is provided on the mounting opening, and a placement ring is connected to the inner side of the electric push rod.
[0012] Preferably, electric guide rails are arranged on the upper and lower sides of the inner wall of the main frame, and sliding columns are arranged on the electric guide rails. The sliding columns slide on the electric guide rails, and the camera module and the cutting head are arranged at the ends of the sliding columns.
[0013] A method for high-precision cutting of a front and back surface alignment device, the operation method comprising the following operation steps:
[0014] Step 1: Place the part body on the placement table, use the placement ring to limit the part body, adjust the placement ring and the camera modules and cutting heads on the upper and lower sides, and then adjust the angles and positions of the laser module, semi-transparent and semi-reflective mirror, front reflector and back reflector;
[0015] Step 2: The laser module emits laser to the semi-transparent and semi-reflective mirror. The laser is divided into two laser beams by the semi-transparent and semi-reflective mirror. The two laser beams are respectively emitted to the front reflector and the back reflector. The laser is respectively applied to the front and back sides of the part body through the front reflector and the back reflector.
[0016] Step 3: By controlling the laser's galvanometer, you can move the laser to form a long laser line, leaving a cutting mark on the surface of the part, i.e., a cutting auxiliary line. The cutting auxiliary lines on both sides are recorded and transmitted by the camera modules on both sides for comparison, and finally the cutting head is used to cut both sides of the part.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] The laser is divided into two beams through translucency, and the laser is applied to the front and back of the part body respectively through two sets of optical lenses. Through the laser galvanometer control, the laser can be moved to form a long laser line, forming a cutting mark on the surface of the part body, that is, the cutting auxiliary path. It can be used as an alignment line in the subsequent laser cutting process. Because this solution uses the same laser beam through a simple and stable kit, a simple and efficient alignment solution can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the main structure of the present invention;
[0020] Figure 2 It is a schematic diagram of the main frame structure of the present invention;
[0021] Figure 3 This is a schematic diagram of the structure of the laser module of the present invention;
[0022] Figure 4 It is a schematic diagram of the structure of the semi-transparent and semi-reflective mirror of the present invention;
[0023] Figure 5 It is a schematic diagram of the structure of the reflector of the present invention;
[0024] Figure 6 It is a schematic diagram of the placement ring structure of the present invention;
[0025] Figure 7 It is a schematic diagram of the structure of the cutting head and camera module of the present invention.
[0026] In the figure: 1. main frame; 11. part body; 12. protection frame; 13. support column; 14. workbench; 2. laser module; 21. mounting column; 22. mounting cylinder; 23. motor; 24. connector; 3. semi-transparent and semi-reflective mirror; 31. connecting rod; 32. bayonet; 33. knob; 34. bolt; 4. front reflector; 41. mounting block; 42. sliding mouth; 43. screw mouth; 44. back reflector; 45. mounting groove; 5. threaded rod; 51. swivel bolt; 52. swivel mouth; 53. slide rod; 6. placement ring; 61. placement table; 62. slider; 63. electric push rod; 64. slide groove; 65. mounting mouth; 66. adjustment groove; 7. electric guide rail; 71. sliding column; 72. cutting head; 73. camera module. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0028] See also Figure 1 to Figure 2 The present invention provides a technical solution: a high-precision cutting front and back surface positioning device, comprising a main frame 1, a part body 11, the part body 11 is the required cutting component, the main frame 1 is used as the main structure of the device, and other structures of the device are installed through the main frame 1, a protective frame 12 is arranged on the outside of the main frame 1, and a glass window is arranged on the protective frame 12. The protective frame 12 is used to provide certain protection for the device, and the glass window on the protective frame 12 is used to facilitate observation of the interior when the device is in use. A support column 13 is arranged at the bottom of the main frame 1, and the main frame 1 and the entire device are supported by the support column 13.
[0029] See also Figures 1 to 4 A laser module 2 is arranged inside the main frame 1. The laser module 2 is used to emit laser. A mounting column 21 is arranged on the inner side of the main frame 1. A mounting tube 22 is arranged on the mounting column 21. A motor 23 is arranged on the mounting tube 22. A connecting piece 24 is arranged on the motor 23. The laser module 2 is arranged on the connecting piece 24. The motor 23 is installed through the mounting column 21 and the mounting tube 22. The motor 23 is connected to the laser module 2 through the connecting piece 24, so that the laser module 2 can be driven to adjust by the rotation of the motor 23. A semi-transparent semi-reflective mirror 3 is arranged on the side of the laser module 2. The laser irradiated by the laser module 2 is irradiated onto the semi-transparent semi-reflective mirror 3. The laser is divided into two laser beams through the semi-transparent semi-reflective mirror 3. The semi-transparent semi-reflective mirror 3 is actually a beam splitter, which is made of inorganic materials and has a size of 1mm~1000mm (length)*1mm~1000mm (width), 1~300mm (thickness) of inorganic glass, or inorganic glass with a diameter of 1mm~1000mm and a thickness of 1~300mm, its transmittance is 10~90%, and its reflectivity is 10~90%. It can reflect or transmit light with a wavelength of 100~2000nm, the laser incident angle is 45°~179.99°, and the laser power that can be sustained is 0.1~1000w of laser power. The positioning accuracy is 1~200nm, and a connecting rod 31 is arranged on the inner side of the main frame 1, and a bayonet 32 is arranged on the connecting rod 31. A bolt 34 is arranged on one side of the semi-transparent and semi-reflective mirror 3, and the bolt 34 is locked in the bayonet 32 for rotation and fixed by friction. A knob 33 is arranged on the other side of the semi-transparent and semi-reflective mirror 3, and the semi-transparent and semi-reflective mirror 3 is rotated by holding the knob 33 to adjust the angle of the semi-transparent and semi-reflective mirror 3.
[0030] See also Figure 1 , Figure 2 , Figure 5The main frame 1 is provided with mounting grooves 45 on the upper and lower sides, and the inner sides of the two mounting grooves 45 are respectively provided with a front reflector 4 and a back reflector 44, and the front reflector 4 and the back reflector 44 are composed of metal or inorganic coated glass, with a size of 1mm~1000mm (length)*1mm~1000mm (width), 1~300mm (thickness) of inorganic glass or metal reflector, or a diameter of 1mm~1000mm, a thickness of 1~300mm thick inorganic glass or metal reflector, the laser incident angle is 45°~179.99°, and the laser power that can be borne is 0.1~1000w of laser power, and the two laser beams divided by the semi-transparent semi-reflector 3 are reflected by the front reflector 4 and the back reflector 44. The front reflector 4 and the back reflector 44 are provided with mounting blocks 41, which are movable on the mounting grooves 45, with turning openings 52 on the outside of the mounting grooves 45, with slide bars 53 on the inside of the mounting grooves 45, with threaded rods 5 on the turning openings 52, with turning bolts 51 on both sides of the threaded rods 5, which are clamped to the outsides of the turning openings 52 on both sides, with slide openings 42 on the mounting blocks 41, with screw openings 43 on the outside of the slide openings 42, which are threadedly connected to the threaded rods 5, and the threaded rods 5 are rotated by rotating the turning bolts 51 on the outside, and the sliding openings 42 are slid on the slide bars 53 through the inner sliding openings 42, so that the mounting blocks 41 are adjusted on the mounting grooves 45, thereby adjusting the front reflector 4 and the back reflector 44.
[0031] See also Figure 1 , Figure 2 , Figure 6 , Figure 7A workbench 14 is arranged inside the main body frame 1, an adjustment groove 66 is arranged on the workbench 14, a placement ring 6 is arranged inside the adjustment groove 66, a placement table 61 is arranged at the bottom of the placement ring 6, the part body 11 is placed on the placement table 61, the placement ring 6 limits the part body 11, the bottom of the placement table 61 is a hollow structure, so it is convenient to cut the bottom of the part body 11, sliders 62 are arranged on both sides of the placement ring 6, a slide groove 64 is arranged inside the adjustment groove 66, the slider 62 slides on the slide groove 64, so that the part body 11 is driven by the placement ring 6 to adjust so that the upper and lower sides correspond to two groups of lasers, a mounting port 65 is arranged on one side of the adjustment groove 66, and an electric push rod 63 is arranged on the mounting port 65, and the electric push rod 63 The inner side is connected to the placement ring 6, that is, the placement ring 6 is driven to move on the placement table 61 by the electric push rod 63, and the camera module 73 and the cutting head 72 are arranged on the upper and lower sides of the workbench 14. The cutting auxiliary lines on both sides are recorded and transmitted by the camera modules 73 on both sides, so as to compare them, and the part body 11 is cut by the cutting head 72. The upper and lower sides of the inner wall of the main frame 1 are arranged with electric guide rails 7, and the electric guide rails 7 are arranged with sliding columns 71. The sliding columns 71 slide on the electric guide rails 7, and the camera module 73 and the cutting head 72 are arranged at the end of the sliding columns 71, that is, the sliding columns 71 are driven to slide by the electric guide rails 7 to move the camera module 73 and the cutting head 72, and the camera module 73 and the cutting head 72 move equidistantly and equilaterally with the placement ring 6.
[0032] A method for high-precision cutting of a front and back surface positioning device, specifically as follows: by placing a part body 11 on a placement table 61, a placement ring 6 limits the part body 11, a slider 62 slides on a slide groove 64, an electric push rod 63 drives the placement ring 6 to move on the placement table 61, and an electric guide rail 7 drives a sliding column 71 to slide, so that the upper and lower camera modules 73 and a cutting head 72 are moved, thereby adjusting the placement ring 6 and the upper and lower camera modules 73 and the cutting head 72, and then adjusting the laser module 2 through a motor 23, rotating the knob 33 to adjust the semi-transparent and semi-reflective mirror 3, rotating the upper and lower rotating bolts 51 to rotate the threaded rod 5, sliding on the slide rod 53 through the inner sliding opening 42, and adjusting the mounting block 41 on the mounting groove 45, so that the front reflector 4 and the back reflector 44 are adjusted, and the debugging is completed;
[0033] After debugging is completed, laser is emitted to the semi-transparent and semi-reflective mirror 3 through the laser module 2. The laser is divided into two laser beams through the semi-transparent and semi-reflective mirror 3. The two laser beams are respectively emitted to the front reflector 4 and the back reflector 44. The laser is respectively applied to the front and back sides of the part body 11 through the front reflector 4 and the back reflector 44. The laser can be moved to form a long laser line through the galvanometer control of the laser, and cutting marks, i.e. cutting auxiliary lines, are formed on the surface of the part body 11. The cutting auxiliary lines on both sides are recorded and transmitted through the camera modules 73 on both sides for comparison, which is more efficient and accurate for the cutting process. Finally, the two sides of the part body 11 are cut through the cutting head 72.
[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A high-precision cutting front and back surface alignment device, comprising a main frame (1) and a part body (11), characterized in that: A laser module (2) is arranged inside the main frame (1), a semi-transparent semi-reflective mirror (3) is arranged on the side of the laser module (2), the semi-transparent semi-reflective mirror (3) and the laser module (2) are both movable structures, mounting grooves (45) are arranged on the upper and lower sides of the main frame (1), a front reflective mirror (4) and a rear reflective mirror (44) are arranged inside the two mounting grooves (45), mounting blocks (41) are arranged on the front reflective mirror (4) and the rear reflective mirror (44), and the mounting blocks (41) are arranged on the upper and lower sides of the main frame (1). ) moves on the installation groove (45), a workbench (14) is arranged on the inner side of the main frame (1), an adjustment groove (66) is arranged on the workbench (14), a placement ring (6) is arranged inside the adjustment groove (66), a placement table (61) is arranged at the bottom of the placement ring (6), the part body (11) is placed on the placement table (61), the bottom of the placement table (61) is a hollow structure, and a camera module (73) and a cutting head (72) are arranged on the upper and lower sides of the workbench (14).
2. A high-precision cutting front and back surface alignment device according to claim 1, characterized in that: A protective frame (12) is arranged outside the main frame (1), a glass window is arranged on the protective frame (12), and a supporting column (13) is arranged at the bottom of the main frame (1).
3. A high-precision cutting front and back surface alignment device according to claim 1, characterized in that: A mounting column (21) is arranged inside the main frame (1), a mounting tube (22) is arranged on the mounting column (21), a motor (23) is arranged on the mounting tube (22), a connecting piece (24) is arranged on the motor (23), and the laser module (2) is arranged on the connecting piece (24).
4. A high-precision cutting front and back surface alignment device according to claim 1, characterized in that: A connecting rod (31) is arranged inside the main frame (1), a bayonet (32) is arranged on the connecting rod (31), a latch (34) is arranged on one side of the semi-transparent and semi-reflective mirror (3), the latch (34) is latched into the bayonet (32) and rotated, and is fixed by friction, and a knob (33) is arranged on the other side of the semi-transparent and semi-reflective mirror (3).
5. The high-precision cutting front and back surface alignment device according to claim 1, characterized in that: A rotating opening (52) is arranged on the outside of the installation groove (45), a sliding rod (53) is arranged on the inside of the installation groove (45), a threaded rod (5) is arranged on the rotating opening (52), rotating bolts (51) are arranged on both sides of the threaded rod (5), and the rotating bolts (51) are clamped to the outside of the rotating openings (52) on both sides.
6. A high-precision cutting front and back surface alignment device according to claim 5, characterized in that: The mounting block (41) is provided with a sliding opening (42), the outer side of the sliding opening (42) is provided with a screw opening (43), the sliding opening (42) slides on the sliding rod (53), and the screw opening (43) is threadedly connected to the threaded rod (5).
7. A high-precision cutting front and back surface alignment device according to claim 1, characterized in that: Slide blocks (62) are arranged on both sides of the placement ring (6), a slide groove (64) is arranged inside the adjustment groove (66), and the slide block (62) slides on the slide groove (64).
8. The high-precision cutting front and back surface alignment device according to claim 1, characterized in that: A mounting opening (65) is provided on one side of the adjustment slot (66), an electric push rod (63) is provided on the mounting opening (65), and the inner side of the electric push rod (63) is connected to a placement ring (6).
9. The high-precision cutting front and back surface alignment device according to claim 1, characterized in that: Electric guide rails (7) are arranged on the upper and lower sides of the inner wall of the main frame (1), and a sliding column (71) is arranged on the electric guide rail (7). The sliding column (71) slides on the electric guide rail (7), and the camera module (73) and the cutting head (72) are arranged at the end of the sliding column (71).
10. A method for high-precision cutting of a front and back surface alignment device according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Place the part body (11) on the placement table (61), use the placement ring (6) to limit the position of the part body (11), adjust the placement ring (6) and the camera modules (73) and the cutting head (72) on the upper and lower sides, and then adjust the angle and position of the laser module (2), the semi-transparent and semi-reflective mirror (3), the front reflector (4) and the back reflector (44); Step 2: The laser module (2) emits laser light to the semi-transparent and semi-reflective mirror (3), and the laser light is divided into two laser beams by the semi-transparent and semi-reflective mirror (3). The two laser beams are respectively emitted to the front reflective mirror (4) and the rear reflective mirror (44), and the laser light is respectively applied to the front and rear surfaces of the component body (11) by the front reflective mirror (4) and the rear reflective mirror (44); Step 3: By controlling the laser galvanometer, the laser can be moved to form a long laser line, forming a cutting mark on the surface of the part body (11), namely a cutting auxiliary line. The cutting auxiliary lines on both sides are recorded and transmitted through the camera modules (73) on both sides for comparison, and finally the two sides of the part body (11) are cut through the cutting head (72).