A laser nitriding machine

Abstract

This utility model relates to the field of laser nitriding equipment technology, and discloses a laser nitriding machine, including a base plate and a laser. A housing is mounted on top of the base plate, with a sealed door on the left side of the housing. A mounting hole is located on top of the housing, and high-temperature and high-pressure resistant glass is installed inside the mounting hole. A column is located on the right side of the housing, and an air inlet pipe extending into the housing is located at the bottom right side of the column. This laser nitriding machine adjusts the laser's position by activating a first servo motor to move it left or right. It also adjusts the laser's position by activating a second servo motor to move it forward or backward. By coordinating the left-right and forward-backward movements, the irradiation range of the laser beam is expanded, allowing the workpiece surface to be directly irradiated by the laser beam as much as possible, thereby improving the nitriding effect on the workpiece surface.

Description

Technical Field

[0001] This utility model relates to the field of laser nitriding equipment technology, specifically a laser nitriding machine. Background Technology

[0002] Laser gas nitriding can improve certain deficiencies in the surface properties of metallic materials, achieving superior performance that is difficult to achieve with conventional laser surface hardening treatment. The general process of laser nitriding is as follows: First, the workpiece is placed in a sealed sample chamber. Then, the air in the sample chamber is removed, and pure nitrogen or a mixed gas is introduced into the sample chamber at a certain flow rate to fill the sample chamber. Finally, the laser beam passes through the sealed glass sample chamber and reacts with the sample inside, thereby promoting the ionization of nitrogen and the nitriding reaction with the workpiece surface. However, in the actual use of existing laser nitriding equipment, since the laser on the equipment is mostly fixed, the irradiation range of the laser beam is relatively limited. The nitriding effect is poor in the parts of the workpiece surface that are not directly irradiated by the laser beam, which is not conducive to use. Therefore, a laser nitriding machine is proposed. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a laser nitriding machine with advantages such as a wide laser beam irradiation range. It solves the problem that in the actual use of existing laser nitriding equipment, the lasers on the equipment are mostly fixedly installed, resulting in a limited laser beam irradiation range. In this case, the nitriding reaction effect is poor in areas of the workpiece surface that are not directly irradiated by the laser beam, which is not conducive to its use.

[0005] (II) Technical Solution

[0006] To achieve the aforementioned goal of a wide laser beam irradiation range, this utility model provides the following technical solution: A laser nitriding machine, comprising a base plate and a laser, a housing on the top of the base plate, a sealed door on the left side of the housing, a mounting hole on the top of the housing, and high-temperature and high-pressure resistant glass inside the mounting hole; a column on the right side of the housing on the top of the base plate, an air inlet pipe extending into the housing from the bottom right side of the column, a first solenoid valve located between the housing and the column on the outside of the air inlet pipe, a vacuum assembly extending into the housing from the right side of the column, and a mounting block on the top left side of the column above the housing; the bottom of the mounting block... The mounting block is provided with a sliding groove, and a first threaded rod is provided between the left and right sides of the inner wall of the sliding groove. A movable block is provided inside the sliding groove, with one end threadedly connected to the outer side of the first threaded rod. A first drive assembly is provided on the top right side of the mounting block, with one end extending into the sliding groove and fixedly connected to the outer side of the first threaded rod. A U-shaped plate is provided at the bottom of the movable block, with one end movably connected to the bottom of the mounting block. A second threaded rod is provided on the front side of the inner wall of the U-shaped plate, with one end extending to its rear side. A slider is provided on the outer side of the second threaded rod, with one end movably connected to the inner top wall of the U-shaped plate. The laser is located at the bottom of the slider. A second drive assembly is provided on the top rear side of the U-shaped plate, with one end fixedly connected to the outer side of the second threaded rod.

[0007] Preferably, the vacuum assembly includes a vacuum pump, and a vacuum pump located above the air inlet pipe is fixedly installed on the right side of the column. An air extraction pipe with one end penetrating the column and extending into the interior of the box is fixedly installed at the air inlet end of the vacuum pump. A second solenoid valve located between the box and the column is fixedly installed on the outside of the air extraction pipe.

[0008] Preferably, the first drive assembly includes a first servo motor, the first servo motor is fixedly mounted on the top right side of the mounting block, the output shaft of the first servo motor extends into the interior of the slide groove and is fixedly mounted with a drive bevel gear, and a driven bevel gear located on the right side of the moving block and meshing with the drive bevel gear at one end is fixedly mounted on the outer side of the first threaded rod.

[0009] Preferably, the second drive assembly includes a second servo motor. The second servo motor is fixedly mounted on the top of the U-shaped plate and located behind the mounting block. A drive gear is fixedly mounted on the output shaft of the second servo motor. A driven gear located behind the U-shaped plate and meshing with the drive gear at one end is fixedly mounted on the outer side of the second threaded rod.

[0010] Preferably, a first bearing is fixedly installed on both the left and right sides of the inner wall of the slide groove, the first threaded rod is rotatably connected to the inner wall of the slide groove through the first bearing, and a first threaded hole adapted to the first threaded rod is opened inside the moving block.

[0011] Preferably, a second bearing is fixedly installed on the front side of the inner wall of the U-shaped plate, and the second threaded rod is rotatably connected to the front side of the inner wall of the U-shaped plate through the second bearing. The slider has a second threaded hole that matches the second threaded rod.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, the present invention provides a laser nitriding machine, which has the following beneficial effects:

[0014] This laser nitriding machine uses a first servo motor to drive a drive bevel gear, which in turn drives a driven bevel gear to rotate a first threaded rod. During rotation, the first threaded rod moves a moving block, a U-shaped plate, and the laser unit to the left or right, thus adjusting the laser's position. Alternatively, a second servo motor can be activated to drive a drive gear, which in turn drives a driven gear to rotate a second threaded rod. This second threaded rod then moves a slider and the laser unit forward or backward. By coordinating the left-right and forward-backward movements of the laser, the irradiation range of the laser beam is expanded, ensuring that the workpiece surface is directly irradiated by the laser beam as much as possible, thereby improving the nitriding effect on the workpiece surface. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a partial cross-sectional view of the U-shaped plate of this utility model from the right side.

[0018] In the diagram: 1. Base plate, 2. Box body, 3. Sealed box door, 4. Mounting hole, 5. High temperature and high pressure resistant glass, 6. Column, 7. Air inlet pipe, 8. First solenoid valve, 9. Vacuum assembly, 91. Vacuum pump, 92. Ejection pipe, 93. Second solenoid valve, 10. Mounting block, 11. Slide groove, 12. First threaded rod, 13. Moving block, 14. First drive assembly, 141. First servo motor, 142. Drive bevel gear, 143. Driven bevel gear, 15. U-shaped plate, 16. Second threaded rod, 17. Slider, 18. Laser, 19. Second drive assembly, 191. Second servo motor, 192. Drive gear, 193. Driven gear. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3 This utility model provides a technical solution: a laser nitriding machine, including a base plate 1 and a laser 18. A housing 2 is fixedly installed on the top of the base plate 1. A sealed door 3 is movably installed on the left side of the housing 2. An installation hole 4 is opened on the top of the housing 2. A high-temperature and high-pressure resistant glass 5 is fixedly installed inside the installation hole 4. A column 6 located on the right side of the housing 2 is fixedly installed on the top of the base plate 1. An air inlet pipe 7 extending into the housing 2 is fixedly installed at the bottom right side of the column 6. A first solenoid valve 8 located between the housing 2 and the column 6 is fixedly installed on the outside of the air inlet pipe 7.

[0021] A vacuum assembly 9 is fixedly installed on the right side of the column 6, extending into the interior of the housing 2. The vacuum assembly 9 includes a vacuum pump 91. The vacuum pump 91 is fixedly installed on the right side of the column 6 above the air inlet pipe 7. The model of the vacuum pump 91 can be XD-040. An air extraction pipe 92 is fixedly installed at the air inlet end of the vacuum pump 91, penetrating the column 6 and extending into the interior of the housing 2. A second solenoid valve 93 is fixedly installed on the outside of the air extraction pipe 92, located between the housing 2 and the column 6.

[0022] A mounting block 10 is fixedly installed on the top left side of the column 6, located above the box 2. A sliding groove 11 is provided at the bottom of the mounting block 10. A first threaded rod 12 is movably installed between the left and right sides of the inner wall of the sliding groove 11. A movable block 13 is movably installed inside the sliding groove 11, with one end threadedly connected to the outer side of the first threaded rod 12. A first bearing is fixedly installed on both the left and right sides of the inner wall of the sliding groove 11. The first threaded rod 12 is rotatably connected to the inner wall of the sliding groove 11 through the first bearing. A first threaded hole that matches the first threaded rod 12 is provided inside the movable block 13.

[0023] A first drive assembly 14 is fixedly installed on the top right side of the mounting block 10, with one end extending into the interior of the slide groove 11 and fixedly connected to the outside of the first threaded rod 12. The first drive assembly 14 includes a first servo motor 141. The first servo motor 141 is fixedly installed on the top right side of the mounting block 10. The output shaft of the first servo motor 141 extends into the interior of the slide groove 11 and is fixedly installed with a drive bevel gear 142. A driven bevel gear 143 located on the right side of the moving block 13 and meshing with the drive bevel gear 142 is fixedly installed on the outside of the first threaded rod 12.

[0024] A U-shaped plate 15 is fixedly installed at the bottom of the movable block 13, with one end movably connected to the bottom of the mounting block 10. A second threaded rod 16 is movably installed on the front side of the inner wall of the U-shaped plate 15, with one end extending to its rear side. A slider 17 is threadedly connected to the outer side of the second threaded rod 16, with one end movably connected to the inner top wall of the U-shaped plate 15. A second bearing is fixedly installed on the front side of the inner wall of the U-shaped plate 15. The second threaded rod 16 is rotatably connected to the front side of the inner wall of the U-shaped plate 15 through the second bearing. A second threaded hole that matches the second threaded rod 16 is opened inside the slider 17. A laser 18 is fixedly installed at the bottom of the slider 17. The model of the laser 18 can be OEM-SD-447.

[0025] A second drive assembly 19 is fixedly installed on the top rear side of the U-shaped plate 15, with one end fixedly connected to the outside of the second threaded rod 16. The second drive assembly 19 includes a second servo motor 191. The top of the U-shaped plate 15 is fixedly installed with the second servo motor 191 located behind the mounting block 10. The output shaft of the second servo motor 191 is fixedly installed with a drive gear 192. The outside of the second threaded rod 16 is fixedly installed with a driven gear 193 located behind the U-shaped plate 15 and one end meshing with the drive gear 192. The model of the first servo motor 141 and the second servo motor 191 is YB2-315S-6-70.

[0026] All electrical components mentioned in this article are connected to an external controller and 220V AC mains power. The external controller can be a conventional known device such as a computer. The control circuit of the external controller can be implemented by a person skilled in the art through simple programming. Therefore, this utility model will not explain the control method and circuit connection in detail.

[0027] In use, the workpiece is placed inside the chamber 2, and the sealed chamber door 3 is closed. Then, the second solenoid valve 93 can be opened via the external controller, and the vacuum pump 91 can be started to extract the air from inside the chamber 2. After extraction, the vacuum pump 91 and the second solenoid valve 93 are closed. Then, the first solenoid valve 8 can be opened, and pure nitrogen gas is injected into the chamber 2 through the air inlet pipe 7 until the chamber 2 is filled with pure nitrogen gas. At this point, the first solenoid valve 8 can be closed. Then, the laser 18 can be started to irradiate the workpiece through the high-temperature and high-pressure resistant glass 5, thereby ionizing the nitrogen gas and causing a nitriding reaction with the workpiece surface. At the same time, the first servo motor 141 can be started via the external controller to drive the drive bevel gear 142 to rotate, thereby controlling the rotation of the workpiece. The moving bevel gear 143 drives the first threaded rod 12 to rotate. During the rotation of the first threaded rod 12, the moving block 13, the U-shaped plate 15, and the laser 18 will move to the left or right as a whole, thereby adjusting the position of the laser 18. Secondly, the second servo motor 191 can be started to drive the drive gear 192 to rotate, which in turn drives the second threaded rod 16 to rotate through the driven gear 193. During the rotation of the second threaded rod 16, the slider 17 and the laser 18 will move forward or backward as a whole. By coordinating the left-right and forward-backward movements of the laser 18, the irradiation range of the laser beam is expanded, so that the surface of the workpiece is directly irradiated by the laser beam as much as possible, thereby improving the effect of the nitriding reaction on the workpiece surface.

[0028] In summary, this laser nitriding machine rotates by activating the first servo motor 141, which drives the drive bevel gear 142 to rotate. This, in turn, drives the driven bevel gear 143 to rotate the first threaded rod 12. During rotation, the first threaded rod 12 moves the moving block 13, the U-shaped plate 15, and the laser 18 to the left or right, thus adjusting the position of the laser 18. Furthermore, the second servo motor 191 can be activated to drive the drive gear 192 to rotate, which in turn drives the driven gear 193 to rotate the second threaded rod 16. The second threaded rod 16, during its rotation... During the process, the slider 17 and the laser 18 will move forward or backward as a whole. By coordinating the left-right and forward-backward movements of the laser 18, the irradiation range of the laser beam is expanded, so that the workpiece surface is directly irradiated by the laser beam as much as possible, thereby improving the nitriding effect of the workpiece surface. This solves the problem that in the actual use of existing laser nitriding equipment, the laser beam irradiation range is relatively limited because the laser on the equipment is mostly fixed, and the nitriding effect is poor in the parts of the workpiece surface that are not directly irradiated by the laser beam, which is not conducive to use.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser nitriding machine, comprising a base plate (1) and a laser (18), wherein a housing (2) is provided on the top of the base plate (1), a sealed door (3) is provided on the left side of the housing (2), a mounting hole (4) is provided on the top of the housing (2), a high-temperature and high-pressure resistant glass (5) is provided inside the mounting hole (4), a column (6) is provided on the top of the base plate (1) on the right side of the housing (2), an air inlet pipe (7) is provided at the bottom right side of the column (6) with one end extending into the housing (2), a first solenoid valve (8) is provided on the outside of the air inlet pipe (7) between the housing (2) and the column (6), and a vacuum assembly (9) is provided at the right side of the column (6) with one end extending into the housing (2), characterized in that: A mounting block (10) is provided on the top left side of the column (6) above the box (2). A groove (11) is provided at the bottom of the mounting block (10). A first threaded rod (12) is provided between the left and right sides of the inner wall of the groove (11). A movable block (13) is provided inside the groove (11), with one end threaded to the outside of the first threaded rod (12). A first drive assembly (14) is provided on the top right side of the mounting block (10), with one end extending into the groove (11) and fixedly connected to the outside of the first threaded rod (12). The bottom of the movable block (13) is provided with a U-shaped plate (15) that is movably connected to the bottom of the mounting block (10). The front side of the inner wall of the U-shaped plate (15) is provided with a second threaded rod (16) that extends to its rear side. The outer side of the second threaded rod (16) is provided with a slider (17) that is movably connected to the inner top wall of the U-shaped plate (15). The laser (18) is provided at the bottom of the slider (17). The rear side of the top of the U-shaped plate (15) is provided with a second drive assembly (19) that is fixedly connected to the outer side of the second threaded rod (16).

2. The laser nitriding machine according to claim 1, characterized in that: The vacuum assembly (9) includes a vacuum pump (91). The vacuum pump (91) is fixedly installed on the right side of the column (6) above the air inlet pipe (7). An air extraction pipe (92) is fixedly installed at the air inlet end of the vacuum pump (91), which passes through the column (6) and extends into the box (2). A second solenoid valve (93) is fixedly installed on the outside of the air extraction pipe (92) between the box (2) and the column (6).

3. The laser nitriding machine according to claim 1, characterized in that: The first drive assembly (14) includes a first servo motor (141). The first servo motor (141) is fixedly mounted on the top right side of the mounting block (10). The output shaft of the first servo motor (141) extends into the interior of the slide groove (11) and is fixedly mounted with a drive bevel gear (142). A driven bevel gear (143) located on the right side of the moving block (13) and meshing with the drive bevel gear (142) is fixedly mounted on the outside of the first threaded rod (12).

4. A laser nitriding machine according to claim 1, characterized in that: The second drive assembly (19) includes a second servo motor (191). The top of the U-shaped plate (15) is fixedly mounted with the second servo motor (191) located behind the mounting block (10). The output shaft of the second servo motor (191) is fixedly mounted with a drive gear (192). The outer side of the second threaded rod (16) is fixedly mounted with a driven gear (193) located behind the U-shaped plate (15) and one end of which meshes with the drive gear (192).

5. A laser nitriding machine according to claim 1, characterized in that: The inner wall of the slide (11) is fixedly installed with first bearings on both the left and right sides. The first threaded rod (12) is rotatably connected to the inner wall of the slide (11) through the first bearing. The moving block (13) has a first threaded hole that matches the first threaded rod (12) inside.

6. A laser nitriding machine according to claim 1, characterized in that: A second bearing is fixedly installed on the front side of the inner wall of the U-shaped plate (15). The second threaded rod (16) is rotatably connected to the front side of the inner wall of the U-shaped plate (15) through the second bearing. The slider (17) has a second threaded hole that matches the second threaded rod (16).

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