High-power laser quenching head

Abstract

The utility model relates to the technical field of laser parts and discloses a high-power laser quenching head. The high-power laser quenching head comprises a laser quenching head main body, and a laser interface is arranged at the top end of the laser quenching head main body. According to the laser quenching head, the collimating mirror, the integral mirror, the light barrier and the air knife main body are arranged, and the laser quenching head main body structurally comprises the laser interface, the mounting plate, the collimating mirror, the integral mirror, the light barrier, the air knife main body and three groups of protection lenses; the three sets of protection lenses better protect the internal machining environment, the replaceable protection lens can shorten the maintenance period of the laser quenching head body, the light barrier and the air knife body set can better protect the laser quenching head body, loss caused during machining is reduced, and the laser quenching head is suitable for workpieces with high power and large machining quenching area. And a high-precision hardened layer with excellent quality can be obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of laser parts and components, in particular to a high-power laser quenching head. Background Art

[0002] Laser quenching is a quenching technology that uses laser to heat the surface of the material to above the phase transition point. As the material cools itself, austenite transforms into martensite, thereby hardening the surface of the material. Laser quenching of tooth surfaces has high heating and cooling rates, short process cycles, and no need for external quenching media. It has the unique advantages of small workpiece deformation, clean working environment, no need for finishing such as grinding after treatment, and the size of the processed gear is not limited by the size of the heat treatment equipment.

[0003] At present, metal products on the market mainly obtain a modified layer on the surface of the substrate through surfacing, spraying and electroplating technology, and use the principle of electrolysis to plate a layer of other metals or alloys on certain metal surfaces. These processing methods are inefficient, highly polluting and have poor stability. Therefore, a high-power laser quenching head is urgently needed. Utility Model Content

[0004] The purpose of the utility model is to provide a high-power laser quenching head to solve the problems raised in the above background technology that metal products on the market currently mainly obtain a modified layer on the surface of the substrate through surfacing, spraying and electroplating technology, and use the principle of electrolysis to plate a layer of other metals or alloys on certain metal surfaces. These processing methods are inefficient, highly polluting, and have poor stability. The installation of the integrator mirror and the collimator mirror on the current quenching head is fixed by a positioning plate and bolts. This installation is inconvenient and time-consuming.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a high-power laser quenching head, comprising a laser quenching head body, a laser interface is arranged at the top of the laser quenching head body, and a collimating water cooling is arranged inside the laser quenching head body, a first positioning plate is arranged on the right side of the laser quenching head body, and a fixed connecting plate is arranged at the bottom end of the laser quenching head body, an upper limit plate is arranged on the outer wall of the laser quenching head body, an integrating mirror is installed on the inner side of the first positioning plate, and a mounting rod is fixed to the inner wall of the first positioning plate, a second protective lens socket is arranged below the integrating mirror, and a first protective lens socket is arranged below the second protective lens socket, a movable rod is movably arranged on the inner side of the upper limit plate, a crank handle is fixed to the top of the movable rod, and a threaded rod is connected to the bottom end of the movable rod, an arc-shaped clamping frame is fixed to the outer wall of the movable rod, and a lower limit plate is movably arranged on the outer side of the threaded rod.

[0006] Preferably, a mounting plate is provided on the outer wall of the laser quenching head body, and a second positioning plate is provided on the left side of the laser quenching head body, a collimating mirror is installed on the inner side of the second positioning plate, and a third protective lens socket is provided below the collimating water cooling.

[0007] Preferably, an air knife connecting frame is fixed to the bottom end of the fixed connecting plate, an air knife main body is mounted on the bottom end of the air knife connecting frame, and a light blocking plate is arranged on the air knife main body.

[0008] Preferably, mounting grooves matching the mounting rods are provided on both sides of the laser quenching head body, air cushion blocks are provided at the inner wall ends of the mounting grooves, and the mounting grooves are snap-connected with the mounting rods.

[0009] Preferably, the first positioning plate, the second positioning plate and the laser quenching head body are all connected by means of mounting grooves, air cushion blocks and mounting rods, and the upper limit plate and the lower limit plate are fixed to the outer wall of the laser quenching head body accordingly.

[0010] Preferably, the movable rod is movably connected to the upper limit plate via a rotation groove, and the threaded rod is movably connected to the lower limit plate via a thread.

[0011] Preferably, there are two arc-shaped clamping frames.

[0012] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0013] First, the utility model sets a collimator, an integrating mirror, a light baffle and an air knife body. The main structure of the laser quenching head includes a laser interface, a mounting plate, a collimator, an integrating mirror, a light baffle, an air knife body and three groups of protective lenses. The laser is collimated and injected into the collimator, the integrating mirror is guided and then refracted onto the workpiece. The three groups of protective lenses can better protect the internal processing environment. The replaceable protective lenses can reduce the maintenance cycle of the laser quenching head body. The light baffle and the air knife body group can better protect the laser quenching head body, reduce the loss caused during processing, and are suitable for high-power and large-area workpieces for processing and quenching, and can obtain a high-precision hardened layer with excellent quality.

[0014] Second, the utility model sets a first positioning plate, a second positioning plate, a movable rod, an upper limit plate, a lower limit plate and an arc-shaped clamping frame. When installing the integrator mirror and the collimator mirror, the first positioning plate and the second positioning plate are respectively inserted into the two sides of the laser quenching head body, so that the mounting rods on the first positioning plate and the second positioning plate are inserted into the mounting grooves on the outer wall of the laser quenching head body, and the ends of the mounting rods are inserted and fit with the air cushion block. At this time, the movable rod is passed through the upper limit plate, and the threaded rod at the bottom end of the movable rod is inserted into the lower limit plate. At this time, the movable rod is driven to move on the upper limit plate by the crank handle. The movable rod drives the threaded rod to rotate on the lower limit plate through the thread, and when rotating, the two arc-shaped clamping frames on the outer wall of the movable rod continuously squeeze the first positioning plate and the second positioning plate, so that after the movable rod and the arc-shaped clamping frame rotate one circle, the most protruding position of the end of the arc-shaped clamping frame rotates to contact the first positioning plate and the second positioning plate, so that under the support of the movable rod, the arc-shaped clamping frame clamps the first positioning plate and the second positioning plate with force, so that the first positioning plate and the second positioning plate are engaged and fixed with the laser quenching head body, thereby fixing the integrator mirror and the collimator mirror inside the laser quenching head body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a side view of the structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the first positioning plate of the utility model;

[0018] Figure 4 For this utility model Figure 3 A is an enlarged schematic diagram;

[0019] Figure 5 It is a schematic diagram of the arc-shaped clamping frame of the utility model.

[0020] Among them: 1. Laser quenching head body; 2. Laser interface; 3. Collimation water cooling; 4. Mounting plate; 5. Third protective lens socket; 6. First positioning plate; 7. Integral mirror; 8. Upper limit plate; 9. Lower limit plate; 10. Mounting slot; 11. Air cushion block; 12. Mounting rod; 13. Movable rod; 14. Crank handle; 15. Threaded rod; 16. Arc clamping frame; 17. Second protective lens socket; 18. First protective lens socket; 19. Fixed connecting plate; 20. Air knife connecting frame; 21. Air knife body; 22. Light shielding plate; 23. Second positioning plate; 24. Collimation mirror. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 A high-power laser quenching head comprises a laser quenching head body 1, a laser interface 2 is arranged at the top of the laser quenching head body 1, and a collimating water cooling 3 is arranged inside the laser quenching head body 1, a first positioning plate 6 is arranged on the right side of the laser quenching head body 1, and a fixed connecting plate 19 is arranged at the bottom end of the laser quenching head body 1, an upper limit plate 8 is arranged on the outer wall of the laser quenching head body 1, a mounting plate 4 is arranged on the outer wall of the laser quenching head body 1, and a second positioning plate 23 is arranged on the left side of the laser quenching head body 1, a collimating mirror 24 is installed on the inner side of the second positioning plate 23, a third protective lens socket 5 is arranged below the collimating water cooling 3, an air knife connecting frame 20 is fixed to the bottom end of the fixed connecting plate 19, an air knife body 21 is installed at the bottom end of the air knife connecting frame 20, and the air knife body 21 A light baffle 22 is arranged on the top. The structure of the laser quenching head body 1 includes a laser interface 2, a mounting plate 4, a collimating mirror 24, an integrating mirror 7, a light baffle 22, an air knife body 21 and three groups of protective lenses. The laser is collimated and shot into the collimating mirror 24 to guide the integrating mirror 7 and then refracted onto the workpiece. The three groups of protective lenses can better protect the internal processing environment. The replaceable protective lenses can reduce the maintenance cycle of the laser quenching head body 1. The light baffle 22 and the air knife body 21 can better protect the laser quenching head body 1 and reduce the loss caused during processing. It is suitable for workpieces with high power and large processing quenching area, and can obtain a high-quality and high-precision hardened layer. The hardness is 15%-20% higher than that of conventional quenching. The wear resistance of cast iron can be increased by 3-4 times after quenching, and the quenching depth can be precisely controlled.

[0023] See also Figure 2-5A high-power laser quenching head, wherein an integrator mirror 7 is installed on the inner side of the first positioning plate 6, and a mounting rod 12 is fixed to the inner wall of the first positioning plate 6, a second protective lens socket 17 is arranged below the integrator mirror 7, and a first protective lens socket 18 is arranged below the second protective lens socket 17, a movable rod 13 is movably arranged on the inner side of the upper limit plate 8, a crank handle 14 is fixed to the top of the movable rod 13, and a threaded rod 15 is connected to the bottom end of the movable rod 13, an arc-shaped clamping frame 16 is fixed to the outer wall of the movable rod 13, and a lower limit plate 9 is movably arranged on the outer side of the threaded rod 15, and a laser quenching head body 1 The two sides of the laser quenching head are provided with mounting grooves 10 matching the mounting rods 12, and the inner wall ends of the mounting grooves 10 are provided with air cushion blocks 11, and the mounting grooves 10 are connected by snapping with the mounting rods 12. The first positioning plate 6, the second positioning plate 23 and the laser quenching head body 1 are connected by the mounting grooves 10, the air cushion blocks 11 and the mounting rods 12. The upper limit plate 8 and the lower limit plate 9 are fixed to the outer wall of the laser quenching head body 1, respectively. The movable rod 13 is movably connected to the upper limit plate 8 through the rotating groove, and the threaded rod 15 is movably connected to the lower limit plate 9 through the thread. There are two arc-shaped clamping frames 16, which are used to install the integrator mirror 7 and the calibrator. When the mirror 24 is straight, the first positioning plate 6 and the second positioning plate 23 are respectively inserted into the two sides of the laser quenching head body 1, so that the mounting rods 12 on the first positioning plate 6 and the second positioning plate 23 are inserted into the mounting grooves 10 on the outer wall of the laser quenching head body 1, and the ends of the mounting rods 12 are inserted and fit with the air cushion block 11. At this time, the movable rod 13 passes through the upper limit plate 8, and the threaded rod 15 at the bottom end of the movable rod 13 is inserted into the lower limit plate 9. At this time, the movable rod 13 is driven to move on the upper limit plate 8 by the crank 14, so that the movable rod 13 drives the threaded rod 15 to rotate on the lower limit plate 9 through the thread. During the rotation, the two arc-shaped clamping frames 16 on the outer wall of the movable rod 13 continuously squeeze the first positioning plate 6 and the second positioning plate 23, so that after the movable rod 13 and the arc-shaped clamping frame 16 rotate one circle, the most protruding position of the end of the arc-shaped clamping frame 16 rotates to contact the first positioning plate 6 and the second positioning plate 23. Therefore, under the support of the movable rod 13, the arc-shaped clamping frame 16 clamps the first positioning plate 6 and the second positioning plate 23 with force, so that the first positioning plate 6 and the second positioning plate 23 are engaged and fixed with the laser quenching head body 1, thereby fixing the integrator mirror 7 and the collimator mirror 24 inside the laser quenching head body 1.

[0024] When in use, the structure of the laser quenching head body 1 includes a laser interface 2, a mounting plate 4, a collimator 24, an integrator 7, a light baffle 22, an air knife body 21 and three sets of protective lenses. The laser is collimated and directed into the collimator 24 to guide the integrator 7 and then refracted onto the workpiece. The three sets of protective lenses better protect the internal processing environment. The replaceable protective lenses can reduce the maintenance cycle of the laser quenching head body 1. The light baffle 22 and the air knife body 21 can better protect the laser quenching head body 1 and reduce the loss caused during processing. It is suitable for high-power and large-area workpieces for processing and quenching, and can obtain a high-quality, high-precision hardened layer with a hardness 15%-20% higher than that of conventional quenching. The wear resistance of cast iron can be increased by 3-4 times after quenching, and the quenching depth can be precisely controlled. The laser beam is used to heat the workpiece locally and thinly, so that less heat is input into the workpiece, the energy-saving effect is good, the heat treatment deformation is small, and there is no mechanical deformation. It is suitable for high-precision parts processing and can be used as the final processing procedure of materials and parts. This is because the laser power density is high and the action time with a certain point on the part is very short, so the thermal deformation zone and the overall change of the part are small. For long workpieces and thin-walled workpieces, this advantage is particularly prominent. Since the light beam irradiates the workpiece, it is non-contact heating and self-cooling quenching, so this technology is a clean heat treatment with good processing flexibility and wide application. The flexible light guide system can be used to arbitrarily guide the laser to the processing part, so that it can easily process difficult-to-process areas such as deep holes, inner holes, blind holes and grooves and local areas with very small spaces. There is no obvious mechanical force and tool loss, low noise, low pollution, pollution-free treatment method, good working conditions, short process cycle, high production efficiency, low cost, the entire process can be controlled by computer, with a high degree of automation, can be included in the production line, and is easy to mass produce. When installing the integrator mirror 7 and the collimator mirror 24, the first positioning plate 6 and the second positioning plate 23 are respectively inserted into the two sides of the laser quenching head body 1, so that the mounting rods 12 on the first positioning plate 6 and the second positioning plate 23 are inserted into the mounting groove 10 on the outer wall of the laser quenching head body 1, and the end of the mounting rod 12 is inserted and fits with the air cushion block 11. At this time, the movable rod 13 passes through the upper limit plate 8, and the threaded rod 15 at the bottom end of the movable rod 13 is inserted into the lower limit plate 9. When the movable rod 13 is moved on the upper limit plate 8 by the crank handle 14, the movable rod 13 drives the threaded rod 15 to rotate on the lower limit plate 9 through the thread, and when rotating, the two arc-shaped clamping frames 16 on the outer wall of the movable rod 13 continuously squeeze the first positioning plate 6 and the second positioning plate 23, so that after the movable rod 13 and the arc-shaped clamping frame 16 rotate one circle, the most protruding position of the end of the arc-shaped clamping frame 16 rotates to contact the first positioning plate 6 and the second positioning plate 23, so that under the support of the movable rod 13, the arc-shaped clamping frame 16 clamps the first positioning plate 6 and the second positioning plate 23 with force, so that the first positioning plate 6 and the second positioning plate 23 are engaged and fixed with the laser quenching head body 1, thereby fixing the integrator mirror 7 and the collimator mirror 24 inside the laser quenching head body 1.

[0025] Although the 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 thereof, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-power laser quenching head, comprising a laser quenching head body (1), characterized in that: The top of the laser quenching head body (1) is provided with a laser interface (2), and the interior of the laser quenching head body (1) is provided with a collimating water cooling (3), the right side of the laser quenching head body (1) is provided with a first positioning plate (6), and the bottom end of the laser quenching head body (1) is provided with a fixed connecting plate (19), the outer wall of the laser quenching head body (1) is provided with an upper limit plate (8), the inner side of the first positioning plate (6) is provided with an integrating mirror (7), and the inner wall of the first positioning plate (6) is fixed with a mounting rod (12), A second protective lens insert (17) is provided below the integrating mirror (7), a first protective lens insert (18) is provided below the second protective lens insert (17), a movable rod (13) is movably provided on the inner side of the upper limit plate (8), a crank handle (14) is fixed to the top end of the movable rod (13), and a threaded rod (15) is connected to the bottom end of the movable rod (13), an arc-shaped clamping frame (16) is fixed to the outer wall of the movable rod (13), and a lower limit plate (9) is movably provided on the outer side of the threaded rod (15).

2. A high-power laser quenching head according to claim 1, characterized in that: The outer wall of the laser quenching head body (1) is provided with a mounting plate (4), and a second positioning plate (23) is provided on the left side of the laser quenching head body (1), a collimating mirror (24) is installed on the inner side of the second positioning plate (23), and a third protective lens socket (5) is provided below the collimating water cooling (3).

3. A high-power laser quenching head according to claim 1, characterized in that: An air knife connecting frame (20) is fixed to the bottom end of the fixed connecting plate (19), an air knife body (21) is installed at the bottom end of the air knife connecting frame (20), and a light shielding plate (22) is arranged on the air knife body (21).

4. A high-power laser quenching head according to claim 1, characterized in that: Mounting grooves (10) matching the mounting rods (12) are provided on both sides of the laser quenching head body (1), air cushion blocks (11) are provided at the inner wall ends of the mounting grooves (10), and the mounting grooves (10) are snap-fitted and connected to the mounting rods (12).

5. A high-power laser quenching head according to claim 4, characterized in that: The first positioning plate (6), the second positioning plate (23) and the laser quenching head body (1) are all connected by snapping together through a mounting groove (10), an air cushion block (11) and a mounting rod (12); the upper limit plate (8) and the lower limit plate (9) are correspondingly fixed on the outer wall of the laser quenching head body (1).

6. A high-power laser quenching head according to claim 1, characterized in that: The movable rod (13) is movably connected to the upper limit plate (8) via a rotation groove, and the threaded rod (15) is movably connected to the lower limit plate (9) via a thread.

7. A high-power laser quenching head according to claim 1, characterized in that: The number of the arc-shaped clamping frames (16) is two.

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