Dustproof laser etching device

Abstract

The utility model relates to the technical field of laser etching, in particular to a dustproof laser etching device. The technical problems that an existing laser etching device is generally open and needs to work in a clean environment, but dust and smoke are possibly generated in the etching work process, on one hand, the etching work quality is affected, and on the other hand, the health of operators is affected; according to the technical scheme, the dustproof laser etching device comprises a structural assembly, a dustproof assembly, a dust collection assembly, a protection assembly, a clamping assembly and an etching assembly; compared with an existing laser etching device which is generally open and needs to work in a clean environment, dust and smog are possibly generated in the etching process, on one hand, the quality of etching work is affected, and on the other hand, the health of operators is affected; according to the device, a closed etching working environment is arranged, dust is shielded and sucked through airflow, and the quality of etching work and the health of operators are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of laser etching, in particular to a dustproof laser etching device. Background Art

[0002] Laser etching, also known as laser etching, is based on the principle of focusing a low-power laser beam with high beam quality (such as ultraviolet laser, fiber laser) into a very small spot, forming a high power density at the focus, so that the material is vaporized and evaporated instantly, thereby forming holes, seams, grooves and other structures. In the process of laser etching, how to prevent dust is an important consideration, because dust and particulate matter may affect the transmission and focusing of the laser beam, thereby affecting the quality and accuracy of etching. Existing laser etching devices are usually open countertops and do not have good dust prevention effects. A good working environment needs to be ensured. However, dust and smoke may also be generated during the etching process, which affects the quality of the etching work on the one hand, and the scattered dust affects the health of the operator on the other. Utility Model Content

[0003] In order to overcome the problem that the existing laser etching devices are usually open tables and do not have good dust-proof effects, a good working environment needs to be ensured. However, during the etching process, dust and smoke may also be generated, which will affect the quality of the etching work on the one hand, and the scattered dust will affect the health of the operator on the other hand.

[0004] The technical solution of the utility model is: a dustproof laser etching device, including a base plate, a structural component, a dustproof component, a dust suction component, a protective component, a clamping component and an etching component. The structural component is fixedly installed on the top surface of the base plate, the dustproof component is arranged inside the structural component, the dust suction component is arranged on one side of the structural component, the protective component is arranged inside the dust suction component, the clamping component is arranged inside the structural component, two groups of clamping components are arranged, the etching component is arranged inside the structural component, and the etching component is located above the clamping component.

[0005] Preferably, a dustproof component, a clamping component and an etching component are shielded and installed by setting a structural component, a dustproof component is set to prevent external dust from entering the interior of the box, a dust suction component is set to absorb dust generated during the etching process to prevent dust from affecting the quality of the etching work, a protective component is set to protect and clean the dust suction component, a clamping component is set to clamp the workpiece, and an etching component is set to etch the workpiece.

[0006] Preferably, the structural assembly includes a box body, a box door and a storage plate. The box body is fixedly mounted on the top surface of the base plate, the box door is arranged on one side of the box body, the box door is rotatably connected to the box body, the storage plate is fixedly mounted on the top surface of the base plate, and the storage plate is located on the inner side of the box body; the dustproof assembly, the clamping assembly and the etching assembly are shielded and installed by setting the box body, the interior of the box is shielded by setting the box door, and the workpiece is placed on the storage plate.

[0007] Preferably, the dust-proof component includes an air curtain and a button. The air curtain is fixedly mounted on the top surface of the inside of the box, and the button is arranged on one side of the air curtain. The air curtain is controlled by setting the button, and the button is released when the box door is opened to turn on the air curtain. The air curtain is formed when the box door is opened to prevent dust from entering, and the surface of the workpiece can be cleaned when the workpiece is placed. The button is pressed when the box door is closed to turn off the air curtain, thereby saving energy.

[0008] Preferably, the dust suction component includes a dust suction port, a connecting air duct, a dust collecting box and a negative pressure fan. The dust suction port is arranged inside the box, and the dust suction port is connected to the side wall inside the box. The connecting air duct is arranged outside the box, and one end of the connecting air duct passes through the box and is connected to the dust suction port. The dust collecting box is arranged on one side of the box, and the dust collecting box is connected to the other end of the connecting air duct. The negative pressure fan is fixedly installed on one end of the dust collecting box. The dust generated on the workpiece during the etching process is sucked by the dust suction port, the dust suction port and the dust collecting box are connected by setting a connecting air duct, the sucked dust is collected by setting a dust collecting box, and negative pressure is provided to the dust suction port by setting a negative pressure fan.

[0009] Preferably, the protective component includes a dustproof net, a handle and a sealing pad. The dustproof net is arranged inside the dust collecting box, the dustproof net is slidably connected to the dust collecting box, the handle is fixedly installed on one end of the dustproof net, the sealing pad is fixedly installed on one side of the dust collecting box, and the sealing pad is located between the handle and the dust collecting box; the negative pressure fan is protected by arranging the dustproof net, and the dustproof net can be pulled out for cleaning by arranging the handle to prevent excessive dust accumulation from affecting the dust collection effect of the dust collection component, and the dustproof net and the box body are sealed by arranging the sealing pad.

[0010] Preferably, the clamping assembly includes a mounting plate, a first motor, a first lead screw, a limiting ring and an internally threaded clamping plate, the mounting plate being fixedly mounted on the top surface of the base plate, the mounting plate being located on one side of the storage plate, the first motor being fixedly mounted inside a group of mounting plates, the first lead screw being arranged at one end of the first motor, one end of the first lead screw being fixedly connected to the output end of the first motor, the other end of the first lead screw being rotatably connected to another group of mounting plates, the first lead screw being composed of two groups of threaded segments of equal length and opposite textures, the limiting ring being fixedly mounted on the first lead screw, the first lead screw passing through the limiting ring, the limiting ring being located in the middle of the first lead screw, the first lead screw passing through the internally threaded clamping plate, the internally threaded clamping plate being threadedly connected to the first lead screw, and the internally threaded clamping plate being located on one side of the limiting ring; the first motor and the first lead screw are supported and mounted by setting the mounting plate, the first lead screw is driven to rotate by setting the first motor, thereby driving the two groups of internally threaded clamping plates to move toward or away from each other, so as to clamp and fix the workpiece, and the internally threaded clamping plate is limited by setting the limiting ring.

[0011] Preferably, the etching assembly includes a slide rail, a second motor, a second lead screw, a mounting bracket, a third motor, a third lead screw and a laser. The slide rail is fixedly mounted on the side wall inside the box, and two groups of slide rails are provided. The second motor is fixedly mounted on the side wall inside the box, and the second motor is located at one end of the slide rail. The second lead screw is provided at one end of the second motor. The second motor is provided with two groups. One end of the second lead screw is fixedly connected to the output end of the second motor, and the other end of the second lead screw is rotatably connected to the slide rail. The second lead screw is located inside the slide rail, and two groups of the second lead screw are provided. The mounting bracket is arranged between the two groups of slide rails, and the mounting bracket is slidably connected to the slide rail. The second lead screw passes through the mounting bracket, and the mounting bracket is threadedly connected to the second lead screw. The third motor The machine is fixedly installed on the inner side wall of the mounting bracket, the third lead screw is arranged at one end of the third motor, one end of the third lead screw is fixedly connected to the output end of the third motor, the other end of the third lead screw is rotatably connected to the mounting bracket, the laser is arranged inside the mounting bracket, the laser is slidably connected to the mounting bracket, the third lead screw runs through the laser, and the third lead screw is threadedly connected to the laser; the mounting bracket is supported by arranging a slide rail, the second motor is arranged to drive the second lead screw to rotate, thereby driving the mounting bracket to move, the mounting bracket is supported and installed by arranging the third motor, the third lead screw and the laser are supported by arranging the third motor to drive the third lead screw to rotate, thereby driving the laser to move, and the workpiece is etched by arranging the laser.

[0012] Beneficial effects of the utility model:

[0013] 1. Compared with the existing laser etching devices, this device is usually open and needs to work in a clean environment. However, dust and smoke may be generated during the etching process, which will affect the quality of the etching work and the health of the operator. This device sets up a closed etching working environment and blocks and absorbs dust through airflow, thereby ensuring the quality of the etching work and the health of the operator.

[0014] 2. The working area inside the box is shielded by the cooperation of the box body and the box door to prevent the outside dust from entering. When the workpiece needs to be placed, the box door is opened, the button is released, and the air curtain machine starts to run, forming an air curtain to prevent the outside dust from entering the box. When the workpiece passes through the air curtain, the dust on the surface will be blown away, improving the etching quality. After the workpiece is placed, the box door is closed, the button is pressed, and the air curtain machine stops running, which is more energy-saving;

[0015] 3. The dust generated during the etching process is sucked through the suction port to prevent the dust from affecting the etching quality. The dust is sucked into the dust collection box by connecting the air duct to prevent the dust from affecting the health of the operator. The negative pressure fan provides negative pressure for the dust collection component, and the negative pressure fan is protected by the dustproof net. The dustproof net can be pulled out for cleaning by pulling the dustproof net with the handle to prevent excessive dust accumulation on the dustproof net from affecting the dust collection effect of the dust collection component. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 What is shown is a schematic diagram of the three-dimensional structure of the dustproof laser etching device of the utility model;

[0017] Figure 2 What is shown is a schematic diagram of the cross-sectional three-dimensional structure of the dustproof laser etching device of the utility model;

[0018] Figure 3 Another cross-sectional three-dimensional structural schematic diagram of the dust-proof laser etching device of the present invention is shown;

[0019] Figure 4 The dustproof laser etching device of the utility model is shown Figure 2 The circle shows an enlarged schematic diagram of the three-dimensional structure;

[0020] Figure 5 Shown is another three-dimensional structural schematic diagram of the dustproof laser etching device of the utility model;

[0021] Figure 6 What is shown is a schematic diagram of the three-dimensional structure of the clamping assembly and etching assembly of the dustproof laser etching device of the utility model;

[0022] Explanation of the reference numerals: 1. bottom plate; 2. structural component; 3. dustproof component; 4. dust suction component; 5. protection component; 6. clamping component; 7. etching component; 201. box body; 202. box door; 203. storage plate; 301. air curtain; 302. button; 401. dust suction port; 402. connecting air duct; 403. dust collecting box; 404. negative pressure fan; 501. dustproof net; 502. handle; 503. sealing pad; 601. mounting plate; 602. first motor; 603. first lead screw; 604. limiting ring; 605. internal thread clamp; 701. slide rail; 702. second motor; 703. second lead screw; 704. mounting bracket; 705. third motor; 706. third lead screw; 707. laser. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] See also Figure 1-2 The utility model provides an embodiment: a dustproof laser etching device, including a base plate 1, a structural component 2, a dustproof component 3, a dust suction component 4, a protective component 5, a clamping component 6 and an etching component 7. The structural component 2 is fixedly installed on the top surface of the base plate 1, the dustproof component 3 is arranged inside the structural component 2, the dust suction component 4 is arranged on one side of the structural component 2, the protective component 5 is arranged inside the dust suction component 4, the clamping component 6 is arranged inside the structural component 2, the clamping component 6 is arranged in two groups, the etching component 7 is arranged inside the structural component 2, and the etching component 7 is located above the clamping component 6.

[0025] See also Figure 3-5In this embodiment, the structural component 2 includes a box body 201, a box door 202 and a storage plate 203. The box body 201 is fixedly installed on the top surface of the bottom plate 1, the box door 202 is arranged on one side of the box body 201, the box door 202 is rotatably connected to the box body 201, the storage plate 203 is fixedly installed on the top surface of the bottom plate 1, and the storage plate 203 is located on the inner side of the box body 201; the dustproof component 3, the clamping component 6 and the etching component 7 are shielded and installed by setting the box body 201, the inside of the box body 201 is shielded by setting the box door 202, and the workpiece is placed by setting the storage plate 203; the dustproof component 3 includes an air curtain machine 301 and a button 302, and the air curtain machine 301 is fixedly installed on On the top surface of the box body 201, a button 302 is set on one side of the air curtain machine 301; the air curtain machine 301 is controlled by setting the button 302, and the button 302 is released when the box door 202 is opened, thereby opening the air curtain machine 301. By setting the air curtain machine 301, an air curtain is formed when the box door 202 is opened to prevent dust from entering, and when the workpiece is placed, the surface of the workpiece can be cleaned. When the box door 202 is closed, the button 302 is pressed to close the air curtain machine 301, saving energy; the dust suction component 4 includes a dust suction port 401, a connecting air duct 402, a dust collecting box 403 and a negative pressure fan 404. The dust suction port 401 is set inside the box body 201, and the dust suction port 401 is connected to the box body 20 1 is connected through the side wall inside, the connecting air duct 402 is arranged outside the box body 201, one end of the connecting air duct 402 penetrates the box body 201 and is connected through the dust suction port 401, the dust collecting box 403 is arranged on one side of the box body 201, the dust collecting box 403 is connected through the other end of the connecting air duct 402, and the negative pressure fan 404 is fixedly installed on one end of the dust collecting box 403; the dust generated on the workpiece during the etching process is sucked by the dust suction port 401, the connecting air duct 402 is arranged to connect the dust suction port 401 and the dust collecting box 403, the dust sucked by the dust collecting box 403 is collected, and the negative pressure fan 404 is arranged to provide negative pressure to the dust suction port 401; the protective component 5 It includes a dustproof net 501, a handle 502 and a sealing pad 503. The dustproof net 501 is arranged inside the dust collecting box 403, the dustproof net 501 is slidably connected to the dust collecting box 403, the handle 502 is fixedly installed on one end of the dustproof net 501, the sealing pad 503 is fixedly installed on one side of the dust collecting box 403, and the sealing pad 503 is located between the handle 502 and the dust collecting box 403; the dustproof net 501 is provided to protect the negative pressure fan 404, and the handle 502 is provided to pull out the dustproof net 501 for cleaning to prevent excessive dust accumulation from affecting the dust collection effect of the dust collection component 4, and the sealing pad 503 is provided to seal the dustproof net 501 and the box body 201.

[0026] See also Figure 6In this embodiment, the clamping assembly 6 includes a mounting plate 601, a first motor 602, a first lead screw 603, a limiting ring 604 and an internal thread clamp 605. The mounting plate 601 is fixedly mounted on the top surface of the bottom plate 1, and the mounting plate 601 is located on one side of the storage plate 203. The first motor 602 is fixedly mounted inside a group of mounting plates 601. The first lead screw 603 is arranged at one end of the first motor 602, and one end of the first lead screw 603 is fixedly connected to the output end of the first motor 602. The other end of the first lead screw 603 is rotatably connected to another group of mounting plates 601. The first lead screw 603 is composed of two groups of threaded segments with equal lengths and opposite textures. The limiting ring 604 is fixedly mounted on the first lead screw 603. , the first lead screw 603 passes through the limiting ring 604, the limiting ring 604 is located in the middle of the first lead screw 603, the first lead screw 603 passes through, the internal thread clamping plate 605, the internal thread clamping plate 605 is threadedly connected with the first lead screw 603, and the internal thread clamping plate 605 is located on one side of the limiting ring 604; the first motor 602 and the first lead screw 603 are supported and installed by setting the mounting plate 601, and the first motor 602 is set to drive the first lead screw 603 to rotate, thereby driving the two groups of internal thread clamping plates 605 to move toward or away from each other, so as to clamp and fix the workpiece, and the internal thread clamping plate 605 is limited by setting the limiting ring 604; the etching component 7 includes a slide rail 701, a second motor 702, and a second Lead screw 703, mounting bracket 704, third motor 705, third lead screw 706 and laser 707, slide rail 701 is fixedly mounted on the side wall inside the box body 201, and slide rail 701 is provided with two groups, second motor 702 is fixedly mounted on the side wall inside the box body 201, second motor 702 is located at one end of slide rail 701, second lead screw 703 is arranged at one end of second motor 702, and second motor 702 is provided with two groups, one end of second lead screw 703 is fixedly connected with the output end of second motor 702, and the other end of second lead screw 703 is rotatably connected with slide rail 701, second lead screw 703 is located inside slide rail 701, and second lead screw 703 is provided with two groups, mounting bracket 704 is arranged at Between the two sets of slide rails 701, the mounting bracket 704 is slidably connected to the slide rail 701, the second lead screw 703 penetrates the mounting bracket 704, the mounting bracket 704 is threadedly connected to the second lead screw 703, the third motor 705 is fixedly mounted on the inner side wall of the mounting bracket 704, the third lead screw 706 is arranged at one end of the third motor 705, one end of the third lead screw 706 is fixedly connected to the output end of the third motor 705, the other end of the third lead screw 706 is rotatably connected to the mounting bracket 704, the laser 707 is arranged inside the mounting bracket 704, the laser 707 is slidably connected to the mounting bracket 704, the third lead screw 706 penetrates the laser 707, and the third lead screw 706 is threadedly connected to the laser 707;The mounting bracket 704 is supported by arranging the slide rail 701, the second motor 702 is arranged to drive the second lead screw 703 to rotate, thereby driving the mounting bracket 704 to move, the mounting bracket 704 is arranged to support and install the third motor 705, the third lead screw 706 and the laser 707, the third motor 705 is arranged to drive the third lead screw 706 to rotate, thereby driving the laser 707 to move, and the workpiece is etched by arranging the laser 707. ;

[0027] When working, the box body 201 and the door 202 are used to shield the inside of the box body 201. When the door 202 is opened, the button 302 is released, and the air curtain machine 301 blows air downward to form an air curtain to prevent external dust from entering the box body 201.

[0028] When the workpiece is placed, the dust on the surface of the workpiece will be blown away after passing through the air curtain to prevent the etching work from being affected. The workpiece is placed on the storage plate 203, and the first motor 602 is used to drive the first lead screw 603 to rotate, thereby driving the two sets of internal thread clamps 605 to move toward or away from each other to clamp the placed workpiece. After the workpiece is placed, the box door 202 is closed, and the box door 202 push button 302 is pressed, the air curtain machine 301 stops working, and the box door 202 blocks the inside of the box body 201 to prevent dust from entering;

[0029] The second motor 702 is used to drive the second lead screw 703 to rotate, thereby driving the mounting bracket 704 to move along the slide rail 701, and the mounting bracket 704 is used to support and install the third motor 705, the third lead screw 706 and the laser 707, and the third motor 705 is used to drive the third lead screw 706 to rotate, thereby driving the laser 707 to move, so that the laser 707 performs etching work;

[0030] At the same time, the negative pressure fan 404 is used to generate wind pressure, and the dust generated during the etching work is sucked by the dust suction port 401, and enters the dust collecting box 403 after being connected to the air duct 402, and the sucked dust is collected by the dust collecting box 403;

[0031] The negative pressure fan 404 is protected by the dustproof net 501. After the dustproof net 501 has been used for a period of time, the handle 502 is used to pull out the dustproof net 501 for cleaning to prevent excessive dust accumulation from affecting the operation of the negative pressure fan 404. After cleaning, the dustproof net 501 is put back into the dust box 403, and the connection between the handle 502 and the dust box 403 is sealed with a sealing pad 503.

[0032] Through the above steps, the dustproof component 3, the clamping component 6 and the etching component 7 are shielded and installed by setting the structural component 2, the dustproof component 3 is prevented from entering the interior of the box 201 by setting the dust suction component 4 to absorb the dust generated during the etching process to prevent the dust from affecting the quality of the etching work, the dust suction component 4 is protected and cleaned by setting the protection component 5, the workpiece is clamped by setting the clamping component 6, and the workpiece is etched by setting the etching component 7.

[0033] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A dustproof laser etching device, comprising a bottom plate (1); characterized in that: The invention also comprises a structural component (2), a dustproof component (3), a dust collecting component (4), a protective component (5), a clamping component (6) and an etching component (7); the structural component (2) is fixedly mounted on the top surface of the bottom plate (1); the dustproof component (3) is arranged inside the structural component (2); the dust collecting component (4) is arranged on one side of the structural component (2); the protective component (5) is arranged inside the dust collecting component (4); the clamping component (6) is arranged inside the structural component (2); two groups of the clamping components (6) are arranged; the etching component (7) is arranged inside the structural component (2); and the etching component (7) is located above the clamping component (6).

2. The dustproof laser etching device according to claim 1, characterized in that: The structural assembly (2) comprises a box body (201), a box door (202) and a storage plate (203); the box body (201) is fixedly mounted on the top surface of the bottom plate (1); the box door (202) is arranged on one side of the box body (201); the box door (202) is rotatably connected to the box body (201); the storage plate (203) is fixedly mounted on the top surface of the bottom plate (1); and the storage plate (203) is located on the inner side of the box body (201).

3. The dustproof laser etching device according to claim 2, characterized in that: The dustproof component (3) comprises an air curtain (301) and a button (302); the air curtain (301) is fixedly mounted on the top surface inside the box (201); and the button (302) is arranged on one side of the air curtain (301).

4. The dustproof laser etching device according to claim 3, characterized in that: The dust suction component (4) comprises a dust suction port (401), a connecting air duct (402), a dust collection box (403) and a negative pressure fan (404); the dust suction port (401) is arranged inside the box body (201), the dust suction port (401) is connected to the side wall inside the box body (201), the connecting air duct (402) is arranged outside the box body (201), one end of the connecting air duct (402) penetrates the box body (201) and is connected to the dust suction port (401), the dust collection box (403) is arranged on one side of the box body (201), the dust collection box (403) is connected to the other end of the connecting air duct (402), and the negative pressure fan (404) is fixedly installed on one end of the dust collection box (403).

5. The dustproof laser etching device according to claim 4, characterized in that: The protection component (5) includes a dustproof net (501), a handle (502) and a sealing pad (503); the dustproof net (501) is arranged inside the dust collecting box (403); the dustproof net (501) is slidably connected to the dust collecting box (403); the handle (502) is fixedly installed on one end of the dustproof net (501); the sealing pad (503) is fixedly installed on one side of the dust collecting box (403); and the sealing pad (503) is located between the handle (502) and the dust collecting box (403).

6. The dustproof laser etching device according to claim 5, characterized in that: The clamping assembly (6) comprises a mounting plate (601), a first motor (602), a first lead screw (603), a limiting ring (604) and an internal thread clamp (605), wherein the mounting plate (601) is fixedly mounted on the top surface of the bottom plate (1), the mounting plate (601) is located on one side of the storage plate (203), the first motor (602) is fixedly mounted inside a group of mounting plates (601), the first lead screw (603) is arranged at one end of the first motor (602), one end of the first lead screw (603) is fixedly connected to the output end of the first motor (602), and the first lead screw The other end of (603) is rotatably connected to another set of mounting plates (601). The first lead screw (603) is composed of two sets of threaded segments of equal length and opposite textures. The limiting ring (604) is fixedly installed on the first lead screw (603). The first lead screw (603) passes through the limiting ring (604). The limiting ring (604) is located in the middle of the first lead screw (603). The first lead screw (603) passes through the internal thread clamp (605). The internal thread clamp (605) is threadedly connected to the first lead screw (603). The internal thread clamp (605) is located on one side of the limiting ring (604).

7. The dustproof laser etching device according to claim 6, characterized in that: The etching assembly (7) comprises a slide rail (701), a second motor (702), a second lead screw (703), a mounting bracket (704), a third motor (705), a third lead screw (706) and a laser (707). The slide rail (701) is fixedly mounted on the side wall inside the box (201). The slide rail (701) is provided with two groups. The second motor (702) is fixedly mounted on the side wall inside the box (201). The second motor (702) is located at one end of the slide rail (701). The second lead screw (703) is arranged at one end of the second motor (702). The second motor (702) is provided with two groups. One end of the second lead screw (703) is fixedly connected to the output end of the second motor (702). The other end of the second lead screw (703) is rotatably connected to the slide rail (701). The second lead screw (703) is located inside the slide rail (701). The second lead screw (703) is provided with Two groups, the mounting bracket (704) is arranged between the two groups of slide rails (701), the mounting bracket (704) is slidably connected to the slide rail (701), the second lead screw (703) passes through the mounting bracket (704), the mounting bracket (704) is threadedly connected to the second lead screw (703), the third motor (705) is fixedly installed on the inner side wall of the mounting bracket (704), the third lead screw (706) is arranged at one end of the third motor (705), one end of the third lead screw (706) is fixedly connected to the output end of the third motor (705), the other end of the third lead screw (706) is rotatably connected to the mounting bracket (704), the laser (707) is arranged inside the mounting bracket (704), the laser (707) is slidably connected to the mounting bracket (704), the third lead screw (706) passes through the laser (707), and the third lead screw (706) is threadedly connected to the laser (707).

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