Nickel-titanium alloy wire laser surface treatment device for orthodontics

Abstract

The utility model relates to the technical field of nickel-titanium alloy wires for oral cavity, in particular to a nickel-titanium alloy wire laser surface treatment device for orthodontics, which comprises a base, a workbench is fixedly mounted on the upper surface of the base, mounting plates are mounted at two side ends of the workbench in a sliding manner, and the sliding direction of the mounting plates is the longitudinal direction. A back plate is fixedly connected between the two mounting plates, a sliding frame is slidably mounted on the back plate, the sliding direction of the sliding frame is the transverse direction, a longitudinal extension rod is fixedly mounted on the surface of the sliding frame, a laser and an adjusting device for adjusting the vertical position of the laser are arranged on the extension rod, and a magnetic suction plate is fixedly mounted on the upper surface of the workbench. A metal plate is movably clamped to the upper surface of the magnetic suction plate, and a groove is formed in the upper surface of the metal plate; the mode of cleaning the surface oxide layer through laser cannot pollute the environment, meanwhile, operation is easy, cost is low, the surface of the nickel-titanium alloy wire cannot be damaged, and the method is very suitable for surface treatment of personalized and customized small-batch nickel-titanium alloy wires.

Description

Technical Field

[0001] The utility model relates to the technical field of nickel-titanium alloy wires for oral use, and specifically relates to a laser surface treatment device for nickel-titanium alloy wires for orthodontics in the oral cavity. Background Technique

[0002] When oral nickel-titanium alloy wires are used, they need to be ligated into the grooves of orthodontic brackets. The surface of the nickel-titanium alloy wire contacts the side walls and bottom walls of the bracket grooves, and there is sliding friction between them. The orthodontic force exerted by the nickel-titanium alloy wire needs to offset the friction force before being transmitted to the teeth. The smoother the surface of the nickel-titanium alloy wire, the lower the friction force with the bracket grooves, and the more efficient the orthodontic force. Therefore, the surface of the nickel-titanium alloy wire is required to be bright, without obvious scratches, corners, burrs, etc. The surface of the nickel-titanium alloy wire should be made into a mirror effect as much as possible to reduce the friction with the bracket grooves.

[0003] Oral nickel-titanium alloy wires need to be heat-treated during the preparation process. As the temperature rises during the heat treatment process, an oxide layer will appear on the surface of the nickel-titanium alloy wire, resulting in a gradual change in the color of the surface of the nickel-titanium alloy wire from light yellow - blue - gray - black. In traditional preparation processes, this oxide layer is generally removed by surface treatment methods such as chemical corrosion pickling, electrochemical polishing, and mechanical friction polishing.

[0004] However, it is found in the actual production process that chemical corrosion pickling is easy to pollute the environment, and the surface of the nickel-titanium alloy wire is prone to hydrogen absorption and embrittlement after long-term immersion in the acid solution; the electrochemical polishing process is complex and costly; mechanical polishing is a commonly used surface treatment method in current large-scale production. The polishing medium grinds and removes the oxide scale on the surface of the nickel-titanium alloy wire, but it is not suitable for the surface treatment of personalized small-batch nickel-titanium alloy wires.

[0005] Laser cleaning, also known as laser ablation, is to irradiate the material surface with a laser beam. At a low laser flux, the laser energy absorbed by the material surface is heated and evaporated or sublimated. It does not require the use of chemical reagents and cleaning solutions, is pollution-free, non-contact, and does not have contact friction with the material surface. It is a green surface treatment technology. By adjusting the laser process parameters, various pollutants and oxide layers on the material surface can be removed without damaging the material surface, achieving a cleaning degree that cannot be achieved by conventional surface treatments.

[0006] Therefore, it is necessary to invent a laser surface treatment device for nickel-titanium alloy wires for orthodontics in the oral cavity to improve the surface cleaning degree of the nickel-titanium alloy wires. Content of the Utility Model

[0007] The utility model aims to solve the problems existing in the existing surface treatment methods such as chemical corrosion pickling, electrochemical polishing, and mechanical friction polishing, which are prone to environmental pollution, have complex processes and high costs, and are not suitable for the surface treatment of small batches of nickel-titanium alloy wires for personalized customization, and provides a laser surface treatment device for nickel-titanium alloy wires for orthodontics.

[0008] The utility model is realized by adopting the following technical solutions:

[0009] A laser surface treatment device for nickel-titanium alloy wires for orthodontics includes a base. A workbench is fixedly installed on the upper surface of the base. Vertically arranged mounting plates are slidably installed at both side ends of the workbench, and the sliding direction of the mounting plates is the longitudinal direction. A back plate is fixedly connected between the two mounting plates. A sliding frame is slidably installed on the back plate, and the sliding direction of the sliding frame is the transverse direction. A longitudinal extension rod is fixedly installed on the surface of the sliding frame. A laser and an adjustment device for adjusting the vertical position of the laser are arranged on the extension rod. The emitting end of the laser faces the workbench. A magnetic attraction plate is fixedly installed on the upper surface of the workbench. A metal plate is movably clamped on the upper surface of the magnetic attraction plate. A groove matching the bow-shaped nickel-titanium alloy wire is opened on the upper surface of the metal plate.

[0010] Furthermore, the workbench is in the shape of a box body with an open bottom end. Vertically sliding rods are fixedly connected to both side ends of the workbench. A longitudinal screw rod is rotatably connected to the bottom end of the workbench, and the longitudinal screw rod is located between the two vertically sliding rods. A longitudinal driving motor is fixedly installed in the middle of the side end of the workbench. The output end of the longitudinal driving motor is fixedly connected to one end of the longitudinal screw rod. A threaded block is threadedly connected to the longitudinal screw rod. A transverse connecting bar is fixedly connected to the bottom end of the threaded block. The two ends of the connecting bar are respectively fixedly connected to the bottom ends of the two mounting plates. Sliding blocks are fixedly installed at the bottom ends of the opposite surfaces of the two mounting plates, and the two sliding blocks respectively slide through the two vertically sliding rods.

[0011] Furthermore, two horizontally sliding bars are fixedly installed on the surface of the back plate and are distributed vertically. A transverse screw rod is rotatably connected between the two mounting plates, and the transverse screw rod is located between the two horizontally sliding bars. A transverse driving motor is fixedly installed on one of the mounting plates. The output shaft of the transverse driving motor is fixedly connected to one end of the transverse screw rod. An extended ear plate is fixedly connected to the middle of the surface of the sliding frame close to the back plate. The extended ear plate passes through the transverse screw rod and is threadedly connected to it. Grooves that are respectively slidably clamped with the two horizontally sliding bars are integrally fixed on the surface of the sliding frame.

[0012] Further, the adjustment device includes a frame body fixedly connected to the end of the extension rod and penetrating up and down. A clamping block is fixedly connected to the inner side wall of the frame body. A clamping groove is formed in the clamping block. A connecting rod is movably connected inside the frame body. A clamping strip is fixedly connected to the surface of the connecting rod close to the clamping block. The clamping strip is clamped in the clamping groove. A vertical rack is fixedly connected to one side end of the connecting rod. A vertical driving motor is fixedly installed at the side end of the frame body. The output shaft of the vertical driving motor penetrates the frame body and is fixedly equipped with a driving gear. The driving gear meshes with the rack.

[0013] Further, the other side end of the connecting rod is fixedly connected with a longitudinal extension frame. The laser is fixedly connected to the end of the extension frame. The number of lasers is three, and the two lasers on the side are relatively inclined.

[0014] Further, a controller is integrated inside the sliding frame. The laser is connected to the controller through a cable, and the cable is located inside the extension frame. The longitudinal driving motor, the transverse driving motor, and the vertical driving motor are all electrically connected to the controller. A touch display screen is installed on the end face of the base, and the touch display screen is electrically connected to the controller.

[0015] The structure of the utility model is reasonably and reliably designed, achieving the purpose of removing pollutants and oxide layers on the surface of the nitinol wire without damaging the surface of the nitinol wire. Moreover, the method of laser cleaning the surface oxide layer will not pollute the environment. At the same time, the operation is simple, the cost is low, it will not damage the surface of the nitinol wire, and it is very suitable for the surface treatment of small batches of personalized nitinol wires. Description of the Drawings

[0016] Figure 1 is the structural schematic diagram of the utility model.

[0017] Figure 2 is the side structural schematic diagram of the workbench in the utility model.

[0018] Figure 3 is the structural schematic diagram of the workbench in the utility model.

[0019] Figure 4 is the structural schematic diagram of the sliding frame in the utility model.

[0020] Figure 5 is the back structural schematic diagram of the sliding frame in the utility model.

[0021] Figure 6 is the internal structural schematic diagram of the frame body in the utility model.

[0022] In the figure: 1 - base, 2 - workbench, 3 - mounting plate, 4 - back plate, 5 - sliding frame, 6 - extension rod, 7 - laser, 8 - magnetic attraction plate, 9 - metal plate, 10 - nitinol wire, 11 - groove, 12 - longitudinal sliding rod, 13 - longitudinal screw rod, 14 - longitudinal driving motor, 15 - threaded block, 16 - connecting bar, 17 - sliding block, 18 - transverse sliding bar, 19 - transverse screw rod, 20 - transverse driving motor, 21 - extension ear plate, 22 - trough body, 23 - frame body, 24 - clamping block, 25 - connecting rod, 26 - clamping bar, 27 - rack, 28 - vertical driving motor, 29 - driving gear, 30 - extension frame, 31 - touch display screen. Detailed implementation mode

[0023] A laser surface treatment device for nitinol wire used in orthodontics, as shown in the attached Figure 1 ~attached Figure 3 figure, includes a base 1. A workbench 2 is fixedly installed on the upper surface of the base 1. Mounting plates 3 arranged vertically are slidably installed at both side ends of the workbench 2, and the sliding direction of the mounting plates 3 is the longitudinal direction. A back plate 4 is fixedly connected between the two mounting plates 3. A sliding frame 5 is slidably installed on the back plate 4, and the sliding direction of the sliding frame 5 is the transverse direction. A longitudinal extension rod 6 is fixedly installed on the surface of the sliding frame 5. A laser 7 and an adjusting device for adjusting the vertical position of the laser 7 are arranged on the extension rod 6. The emitting end of the laser 7 faces the workbench 2. A magnetic attraction plate 8 is fixedly installed on the upper surface of the workbench 2. A metal plate 9 is movably clamped on the upper surface of the magnetic attraction plate 8. A groove 11 matching the bow-shaped nitinol wire 10 is opened on the upper surface of the metal plate 9.

[0024] In the present utility model, the nitinol wire 10 is embedded into the groove 11 on the surface of the metal plate 9 to fix the nitinol wire 10. Then, the metal plate 9 is magnetically attracted to the magnetic attraction plate 8 to fix the metal plate 9. Next, the adjusting device is started, and the height of the laser 7 in the vertical direction (i.e., the Z direction) is adjusted according to the material of the nitinol wire 10 and the intensity of the laser 7, so that the cleaning strength is appropriate. Then, the laser 7 is started to perform laser cleaning on the surface of the nitinol wire 10 and the side surface of the nitinol wire 10 exposed on the surface of the metal plate 9. During the laser cleaning, the mounting plate 3 is controlled to move in the longitudinal direction (i.e., the Y direction), and at the same time, the sliding frame 5 is controlled to move in the transverse direction (i.e., the X direction), so that the laser 7 can move arbitrarily on the two-dimensional plane to form a movement track conforming to the bow shape of the nitinol wire 10, which is convenient for laser cleaning the surface of the nitinol wire 10.

[0025] After the surface cleaning of the nitinol wire 10 is completed, the nitinol wire 10 is turned over and embedded in the metal plate 9 again. The above process is repeated to perform laser cleaning on the reverse side of the nitinol wire 10 and the side surface of the nitinol wire 10 exposed on the surface of the metal plate 9. Thus, the laser cleaning of the nitinol wire 10 is completed. The method of laser cleaning the surface oxide layer does not pollute the environment, is simple to operate, has low cost, does not damage the surface of the nitinol wire 10, and is very suitable for the surface treatment of small batches of nitinol wires for personalized customization.

[0026] As shown in the Figure 2 accompanying drawings, the workbench 2 is in the shape of a box with an open bottom end. Vertical sliding rods 12 are fixedly connected to both side ends of the workbench 2. A vertical screw rod 13 is rotatably connected to the bottom end of the workbench 2, and the vertical screw rod 13 is located between the two vertical sliding rods 12. A vertical driving motor 14 is fixedly installed in the middle of the side end of the workbench 2. The output end of the vertical driving motor 14 is fixedly connected to one end of the vertical screw rod 13. A threaded block 15 is threadedly connected to the vertical screw rod 13. A horizontal connecting bar 16 is fixedly connected to the bottom end of the threaded block 15. Both ends of the connecting bar 16 are fixedly connected to the bottom ends of the two mounting plates 3. Sliding blocks 17 are fixedly installed at the bottom ends of the opposite surfaces of the two mounting plates 3. The two sliding blocks 17 respectively slide through the two vertical sliding rods 12.

[0027] The mutual cooperation of the vertical sliding rod 12, the vertical screw rod 13, the vertical driving motor 14, the threaded block 15, the connecting bar 16, and the sliding block 17 realizes the synchronous longitudinal movement (i.e., the Y direction) of the two mounting plates 3. When the vertical driving motor 14 is started, the output shaft of the vertical driving motor 14 drives the vertical screw rod 13 to rotate. Since the vertical screw rod 13 and the threaded block 15 are in a threaded connection relationship, when the vertical screw rod 13 rotates, the threaded block 15 can move on the vertical screw rod 13, thereby driving the connecting bar 16 to move synchronously. The connecting bar 16 drives the sliding block 17 and the mounting plate 3 to move synchronously. While the two mounting plates 3 move in the longitudinal direction (i.e., the Y direction), they drive the laser 7 thereon to move synchronously, realizing the laser cleaning of the nitinol wire 10 in the longitudinal direction (i.e., the Y direction).

[0028] As shown in the Figure 3 ~accompanying Figure 5 drawings, two horizontal sliding bars 18 distributed up and down are fixedly installed on the surface of the back plate 4. A horizontal screw rod 19 is rotatably connected between the two mounting plates 3, and the horizontal screw rod 19 is located between the two horizontal sliding bars 18. A horizontal driving motor 20 is fixedly installed on one of the mounting plates 3. The output shaft of the horizontal driving motor 20 is fixedly connected to one end of the horizontal screw rod 19. An extension ear plate 21 is fixedly connected to the middle of the surface of the sliding frame 5 close to the back plate 4. The extension ear plate 21 passes through the horizontal screw rod 19 and is threadedly connected thereto. Grooves 22 that are respectively slidably clamped with the two horizontal sliding bars 18 are integrally fixed on the surface of the sliding frame 5.

[0029] The mutual cooperation of the horizontal sliding bar 18, the horizontal screw rod 19, the horizontal driving motor 20, the extension ear plate 21, and the trough body 22 realizes the movement of the sliding frame 5 in the horizontal direction (i.e., the X direction). When the horizontal driving motor 20 is started, the output shaft of the horizontal driving motor 20 drives the horizontal screw rod 19 to rotate. Since the horizontal screw rod 19 and the extension ear plate 21 are in a threaded connection, when the horizontal screw rod 19 rotates, it drives the extension ear plate 21 and the sliding frame 5 to move on the horizontal screw rod 19. When the sliding frame 5 moves, it synchronously drives the two trough bodies 22 to move on the two horizontal sliding bars 18 respectively, which are used for limiting and supporting, and also drives the laser 7 thereon to move synchronously, realizing the laser cleaning of the nitinol wire 10 in the horizontal direction (i.e., the X direction).

[0030] As shown in the attached Figure 4 and the attached Figure 6 figure, the adjustment device includes a frame body 23 fixedly connected to the end of the extension rod 6 and penetrating up and down. A clamping block 24 is fixedly connected to the inner side wall of the frame body 23. A clamping groove is provided on the clamping block 24. A connecting rod 25 is movably connected inside the frame body 23. A clamping strip 26 is fixedly connected to the surface of the connecting rod 25 close to the clamping block 24. The clamping strip 26 is clamped in the clamping groove. A vertical rack 27 is fixedly connected to one side end of the connecting rod 25. A vertical driving motor 28 is fixedly installed at the side end of the frame body 23. The output shaft of the vertical driving motor 28 penetrates the frame body 23 and is fixedly equipped with a driving gear 29. The driving gear 29 meshes with the rack 27.

[0031] The other side end of the connecting rod 25 is fixedly connected with a longitudinal extension frame 30. The laser 7 is fixedly connected to the end of the extension frame 30. The number of the lasers 7 is three, and the two lasers 7 on the side are relatively inclined.

[0032] The mutual cooperation of the frame body 23, the clamping block 24, the connecting rod 25, the clamping strip 26, the rack 27, the vertical driving motor 28, the driving gear 29, and the extension frame 30 can adjust the vertical displacement of the laser 7, so that the device can adjust the distance between the laser 7 and the nitinol wire 10 according to the material of the nitinol wire 10 and the intensity of the laser 7 to achieve the best laser cleaning effect. After the vertical driving motor 28 is started, its output shaft drives the driving gear 29 to rotate. Due to the meshing relationship between the driving gear 29 and the rack 27, the rack 27 moves up and down under the drive of the driving gear 29, and then drives the connecting rod 25, the extension frame 30, and the laser 7 to move up and down synchronously, thereby realizing the height adjustment of the laser 7 in the vertical direction (i.e., the Z direction).

[0033] A controller is integrated inside the sliding frame 5. The laser 7 is connected to the controller through a cable, and the cable is located inside the extension frame 30. The longitudinal driving motor 14, the horizontal driving motor 20, and the vertical driving motor 28 are all electrically connected to the controller. A touch display screen 31 is installed on the end face of the base 1. The touch display screen 31 is electrically connected to the controller.

[0034] During operation, first, the nitinol wire 10 is embedded into the groove 11 on the surface of the metal plate 9 to fix the nitinol wire 10. Then, the metal plate 9 is magnetically attracted to the magnetic attraction plate 8 to fix the metal plate 9. Then, the distance between the laser 7 and the nitinol wire 10 is adjusted. The vertical drive motor 28 is started, and its output shaft drives the drive gear 29 to rotate, thereby driving the rack 27 to move up and down, and further driving the connecting rod 25, the extension frame 30, and the laser 7 to move up and down synchronously, completing the height adjustment of the laser 7 in the vertical direction (i.e., the Z direction).

[0035] Next, the laser 7 is started to perform laser cleaning on the surface of the nitinol wire 10 and the side surface of the nitinol wire 10 exposed on the surface of the metal plate 9. During laser cleaning, the controller synchronously controls the longitudinal drive motor 14 and the transverse drive motor 20 to start. The output shaft of the longitudinal drive motor 14 drives the longitudinal screw 13 to rotate, and the rotation of the longitudinal screw 13 drives the threaded block 15 to move on the longitudinal screw 13, thereby driving the connecting bar 16 to move synchronously. The connecting bar 16 drives the sliding block 17 and the mounting plate 3 to move synchronously, completing the displacement of the laser 7 in the longitudinal direction (i.e., the Y direction); the output shaft of the transverse drive motor 20 drives the transverse screw 19 to rotate, and the rotation of the transverse screw 19 drives the extension ear plate 21 and the sliding frame 5 to move on the transverse screw 19. When the sliding frame 5 moves, it synchronously drives the two troughs 22 to move on the two transverse sliding bars 18 respectively for limiting and supporting, and also drives the laser 7 thereon to move synchronously, completing the displacement of the laser 7 in the transverse direction (i.e., the X direction).

[0036] The synchronous operation of the longitudinal drive motor 14 and the transverse drive motor 20 enables the laser 7 to move arbitrarily on the two-dimensional plane, forming a movement trajectory conforming to the bow shape of the nitinol wire 10, and completing the laser cleaning of the oxide layer on the surface of the nitinol wire 10.

[0037] Then, the nitinol wire 10 is flipped, embedded into the metal plate 9 again, and the above process is repeated again to perform laser cleaning on the reverse side of the nitinol wire 10 and the side surface of the nitinol wire 10 exposed on the surface of the metal plate 9, thereby completing the laser cleaning of the nitinol wire 10. Example 1

[0038] Laser cleaning is performed on an oval nitinol round wire with a size of 0.018 inch;

[0039] First, an oval groove 11 is opened on the metal plate 9, and the oval nitinol round wire is fitted into the groove 11 so that the upper surface of the nitinol round wire is completely exposed, and two-thirds of the side surface is exposed. Then, the metal plate 9 is fixed on the magnetic attraction plate 8 by magnetic attraction;

[0040] Then, the position of the laser 7 and the energy of the laser beam of the laser 7 are adjusted by the adjusting device so that the laser emitted by the laser 7 irradiates the surface of the 0.018-inch oval nickel-titanium round wire. Then, the controller controls the rotation speeds of the longitudinal driving motor 14 and the transverse driving motor 20 so that the laser 7 can move on the two-dimensional plane composed of the longitudinal direction (Y direction) and the transverse direction (X direction), and its movement trajectory is an arc-shaped trajectory matching the oval nickel-titanium round wire. As the laser 7 moves forward, it can not only remove the oxide layer on the surface of the nickel-titanium round wire but also not damage the surface of the nickel-titanium round wire;

[0041] Next, after the surface of the 0.018-inch oval nickel-titanium round wire is laser-treated, it is taken out from the groove 11 of the metal plate 9, flipped 180°, and then re-embedded into the groove 11, and then the laser treatment is repeated once until the entire surface of the 0.018-inch oval nickel-titanium round wire is completely treated. Example 2

[0042] Laser cleaning is performed on a natural-shaped nickel-titanium square wire with dimensions of 0.016×0.022 inches;

[0043] First, a natural-shaped groove 11 is opened on the metal plate 9, and the natural-shaped nickel-titanium square wire is fitted into the groove 11 so that the upper surface of the nickel-titanium square wire is completely exposed and two-thirds of the side surface is exposed. Then, the metal plate 9 is fixed on the magnetic attraction plate 8 by magnetic attraction;

[0044] Then, the position of the laser 7 and the energy of the laser beam of the laser 7 are adjusted by the adjusting device so that the laser emitted by the laser 7 irradiates the surface of the natural-shaped nickel-titanium square wire. Then, the controller controls the rotation speeds of the longitudinal driving motor 14 and the transverse driving motor 20 so that the laser 7 can move on the two-dimensional plane composed of the longitudinal direction (Y direction) and the transverse direction (X direction), and its movement trajectory is an arc-shaped trajectory matching the natural-shaped nickel-titanium square wire. As the laser 7 moves forward, it can not only remove the oxide layer on the surface of the nickel-titanium square wire but also not damage the surface of the nickel-titanium square wire;

[0045] Next, after the surface of the 0.016×0.022-inch natural-shaped nickel-titanium square wire is laser-treated, it is taken out from the groove 11 of the metal plate 9, flipped 180°, and then re-embedded into the groove 11, and then the laser treatment is repeated once until the entire surface of the 0.016×0.022-inch natural-shaped nickel-titanium square wire is completely treated. Example 3

[0046] Laser cleaning is performed on a personalized customized bow-shaped copper-nickel-titanium square wire with dimensions of 0.018×0.025 inches;

[0047] First, a personalized customized bow-shaped groove 11 is opened on the metal plate 9, and the personalized customized bow-shaped copper-nickel-titanium square wire is fitted into the groove 11, so that the upper surface of the copper-nickel-titanium square wire is completely exposed, and two-thirds of the side surface is exposed. Then, the metal plate 9 is fixed on the magnetic attraction plate 8 by magnetic attraction;

[0048] Then, the position of the laser 7 and the energy of the laser beam of the laser 7 are adjusted by the adjustment device, so that the laser emitted by the laser 7 irradiates the surface of the copper-nickel-titanium square wire. Then, the controller controls the rotation speeds of the longitudinal drive motor 14 and the transverse drive motor 20, so that the laser 7 can move on the two-dimensional plane composed of the longitudinal direction (Y direction) and the transverse direction (X direction), and its movement trajectory is a bow-shaped trajectory matching the personalized customized bow. As the laser 7 moves forward, it can not only remove the oxide layer on the surface of the copper-nickel-titanium square wire, but also will not damage the surface of the copper-nickel-titanium square wire;

[0049] Next, after the surface of the 0.018×0.025 inch personalized customized bow-shaped copper-nickel-titanium square wire is laser-treated, it is taken out from the groove 11 of the metal plate 9, flipped 180°, and then embedded into the groove 11 again, and then the laser treatment is repeated once until the entire surface of the 0.018×0.025 inch personalized customized bow-shaped copper-nickel-titanium square wire is completely treated.

[0050] The nickel-titanium alloy wire includes a superelastic nickel-titanium alloy wire and a thermally activated nickel-titanium alloy wire. The thermally activated nickel-titanium alloy wire has temperature sensitivity. Therefore, the temperature during the preparation of the thermally activated nickel-titanium alloy wire needs to be maintained within the range of 37° to 50°. For this characteristic of the thermally activated nickel-titanium alloy wire, when treating the oxide layer on the surface of the thermally activated nickel-titanium alloy wire, the metal plate 9 needs to be heated so that the temperature of the thermally activated nickel-titanium alloy wire embedded in the groove 11 is maintained within the range of 37° to 50°. At the same time, the heated thermally activated nickel-titanium alloy wire is more easily embedded into the groove 11.

[0051] The method of heating the metal plate 9 belongs to the prior art and will not be elaborated here.

[0052] The superelastic nickel-titanium alloy wire does not need to be heated during the surface treatment process.

[0053] By the above means, not only can the surfaces of orthodontic square wires and orthodontic round wires be treated, but also the surfaces of superelastic nickel-titanium alloy wires and thermally activated nickel-titanium alloy wires can be treated, further increasing the applicable range of this device.

[0054] In the description of the present utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0055] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A laser surface treatment device for nickel-titanium alloy wire for orthodontics, characterized in that: The invention comprises a base (1), a workbench (2) is fixedly mounted on the upper surface of the base (1), a vertically arranged mounting plate (3) is slidably mounted on both side ends of the workbench (2), and the mounting plate (3) slides in a longitudinal direction; a back plate (4) is fixedly connected between the two mounting plates (3), a sliding frame (5) is slidably mounted on the back plate (4), and the sliding frame (5) slides in a transverse direction; a longitudinal extension rod (6) is fixedly mounted on the surface of the sliding frame (5), a laser (7) and an adjustment device for adjusting the upper and lower positions of the laser (7) are arranged on the extension rod (6), an emission end of the laser (7) faces the workbench (2), a magnetic suction plate (8) is fixedly mounted on the upper surface of the workbench (2), a metal plate (9) is movably clamped on the upper surface of the magnetic suction plate (8), and a groove (11) matching a bow-shaped nickel-titanium alloy wire (10) is provided on the upper surface of the metal plate (9).

2. The laser surface treatment device for nickel-titanium alloy wire for orthodontics according to claim 1, characterized in that: The workbench (2) is in the shape of a box with an open bottom. The two side ends of the workbench (2) are fixedly connected to longitudinal slide bars (12). The bottom end of the workbench (2) is rotatably connected to a longitudinal screw rod (13), and the longitudinal screw rod (13) is located between the two longitudinal slide bars (12). A longitudinal drive motor (14) is fixedly installed in the middle of the side end of the workbench (2). The output end of the longitudinal drive motor (14) is fixedly connected to one end of the longitudinal screw rod (13). A threaded block (15) is threadedly connected to the longitudinal screw rod (13). The bottom end of the threaded block (15) is fixedly connected to a transverse connecting strip (16). The two ends of the connecting strip (16) are respectively fixedly connected to the bottom ends of the two mounting plates (3). The bottom ends of the opposite surfaces of the two mounting plates (3) are fixedly installed with sliding blocks (17). The two sliding blocks (17) are respectively slidably arranged on the two longitudinal slide bars (12).

3. The laser surface treatment device for nickel-titanium alloy wire for orthodontics according to claim 2, characterized in that: The surface of the back plate (4) is fixedly mounted with two horizontal slide bars (18) distributed in an upper and lower manner, a horizontal screw rod (19) is rotatably connected between the two mounting plates (3), and the horizontal screw rod (19) is located between the two horizontal slide bars (18), a horizontal drive motor (20) is fixedly mounted on one of the mounting plates (3), and an output shaft of the horizontal drive motor (20) is fixedly connected to one end of the horizontal screw rod (19), an extension ear plate (21) is fixedly connected to the middle of the surface of the sliding frame (5) near the back plate (4), the extension ear plate (21) is penetrated on the horizontal screw rod (19) and is threadedly connected thereto, and a groove body (22) is fixedly mounted on the surface of the sliding frame (5) and is respectively slidably engaged with the two horizontal slide bars (18).

4. The laser surface treatment device for nickel-titanium alloy wire for orthodontics according to claim 3, characterized in that: The adjustment device comprises a frame (23) fixedly connected to the end of the extension rod (6) and extending vertically, a clamping block (24) being fixedly connected to the inner side wall of the frame (23), a clamping slot being provided on the clamping block (24), a connecting rod (25) being movably connected inside the frame (23), a clamping strip (26) being fixedly connected to the surface of the connecting rod (25) close to the clamping block (24), the clamping strip (26) being clamped in the clamping slot, a vertical rack (27) being fixedly connected to one side end of the connecting rod (25), a vertical drive motor (28) being fixedly mounted on the side end of the frame (23), an output shaft of the vertical drive motor (28) passing through the frame (23) and fixedly equipped with a driving gear (29), the driving gear (29) being meshed with the rack (27).

5. The laser surface treatment device for nickel-titanium alloy wire for orthodontics according to claim 4, characterized in that: The other side end of the connecting rod (25) is fixedly connected to a longitudinal extension frame (30), and the laser (7) is fixedly connected to the end of the extension frame (30). The number of the lasers (7) is three, and the two lasers (7) located on the side are relatively inclined.

6. The laser surface treatment device for nickel-titanium alloy wire for orthodontics according to claim 5, characterized in that: A controller is integrated inside the sliding frame (5); the laser (7) is connected to the controller via a cable, and the cable is located inside the extension frame (30); the longitudinal drive motor (14), the transverse drive motor (20), and the vertical drive motor (28) are all electrically connected to the controller; a touch display screen (31) is installed on the end surface of the base (1), and the touch display screen (31) is electrically connected to the controller.

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