Protective mechanism of laser cutting machine

Abstract

The utility model provides a protection mechanism of a laser cutting machine. The protection mechanism of the laser cutting machine comprises a machining table, supporting legs arranged at the bottom of the machining table, a U-shaped mounting frame, a laser cutting module, a first telescopic push rod, a transverse plate, a protection cover, a first linear sliding table, a U-shaped fixing frame, a second telescopic push rod, a mounting plate, a cleaning liquid spray head, a driving motor, a cleaning brush and a liquid supply module. According to the protection mechanism of the laser cutting machine, the basic requirements that the laser cutting machine body is covered and protected through the protection structure, and cut crushed materials are prevented from splashing at will are met; through the transparent observation structure arranged on the protection structure, a user can conveniently check the condition in the protection structure, and the inner wall of the transparent observation structure can be conveniently cleaned, so that the user can conveniently use the transparent observation window all the time; and therefore, the whole protection structure can continuously and effectively work.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser cutting machines, and particularly relates to a protection mechanism for a laser cutting machine. Background Art

[0002] During the process of cutting workpieces using a laser cutting machine, in order to prevent cutting scraps from splashing onto the staff, people usually set up a protection mechanism on the outside of the laser cutting machine. Although the existing protection mechanisms of laser cutting machines can meet the basic requirements of protecting the laser cutting machine and preventing cutting scraps from splashing onto users, and in order to facilitate viewing the working state of the laser cutting machine inside the protection mechanism, people usually set up a transparent observation structure on the front side of the protection structure. However, during the use of the transparent observation structure, its inner wall will directly contact the waste smoke generated by cutting and be contaminated and soiled. Since the inner wall of the transparent observation structure cannot be automatically cleaned but needs to be manually cleaned, it is not only very troublesome but also affects the normal use of the protection mechanism, bringing great inconvenience to people's use. Summary of the Utility Model

[0003] In view of this, in order to overcome the deficiencies of the prior art, the utility model provides a protection mechanism for a laser cutting machine, which can not only meet the basic requirements of covering and protecting the laser cutting machine body through the protection structure and preventing cutting scraps from splashing randomly, but also enable users to conveniently view the situation inside the protection structure through the transparent observation structure arranged on the protection structure, and can also conveniently clean the inner wall of the transparent observation structure, so that users can always conveniently use the transparent observation window, and further enable the overall protection structure to work continuously and effectively.

[0004] To solve the above technical problems, the technical solution adopted by the present utility model is as follows: A protective mechanism for a laser cutting machine, comprising a processing table, with support legs provided at the bottom of the processing table. Along the left-right direction, a U-shaped mounting frame is provided at the top of the processing table. A laser cutting module is provided at the top of the mounting frame. At the corners of the top of the processing table, first telescopic push rods are vertically arranged. At the upper ends of the output shafts of the four first telescopic push rods, cross plates are respectively provided. At the side ends of the four cross plates, a protective cover with an open bottom and capable of covering the outside of the mounting frame and the laser cutting module is commonly provided. A transparent observation window is provided at the front end of the protective cover. On the inner side wall of the front end of the protective cover, first linear slides are provided on both sides of the transparent observation window. A U-shaped fixing frame is commonly provided on the sliders of the two first linear slides. A second telescopic push rod is horizontally arranged at the front end of the fixing frame. At the end of the output shaft of the second telescopic push rod, a mounting plate is provided. At the upper part of the front end of the mounting plate, a cleaning liquid spray head is provided. At the lower part of the front end of the mounting plate, a driving motor is horizontally arranged. On the output shaft of the driving motor, a cleaning brush adapted to the transparent observation window is provided. A liquid supply module for supplying liquid to the cleaning liquid spray head is also provided at the top of the protective cover.

[0005] As a further improvement of the present utility model, the liquid supply module includes a cleaning liquid storage cylinder provided at the top of the protective cover. A liquid inlet hopper is provided at the top of the cleaning liquid storage cylinder. A first control valve is provided on the liquid inlet hopper. A liquid outlet pipe penetrating through the top of the protective cover is provided at the bottom of the cleaning liquid storage cylinder. A second control valve and a pump body are provided on the liquid outlet pipe. A liquid guiding hose is provided between the liquid outlet pipe and the liquid inlet end of the cleaning liquid spray head.

[0006] As a further improvement of the present utility model, a connecting cylinder clamped and fixed to the output shaft of the driving motor is provided at the rear end of the cleaning brush. At the lower end of the connecting cylinder, a connecting bolt for screwing and fixing the output shaft of the driving motor is provided. A threaded connection hole adapted to the connecting bolt is provided on the output shaft of the driving motor.

[0007] As a further improvement of the present utility model, the connecting bolt is a hand-tightening bolt.

[0008] As a further improvement of the present utility model, the laser cutting module includes a pressing and fixing unit provided at the left and right side ends of the top of the mounting frame and a laser cutting unit provided at the middle end of the top of the mounting frame.

[0009] As a further improvement of the present utility model, the pressing and fixing unit includes third telescopic push rods vertically arranged at the left and right side ends of the top of the mounting frame. At the lower ends of the output shafts of the third telescopic push rods on both sides, fixed pressing plates are commonly provided.

[0010] As a further improvement of the present utility model, the laser cutting unit includes second linear slides disposed on the left and right side ends of the bottom wall of the middle end of the top of the mounting frame along the front-rear direction. A fourth telescopic push rod is vertically disposed on the slide of the second linear slide, and a laser cutting head is disposed at the lower end of the output shaft of the fourth telescopic push rod.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] First, the user can first make the protective cover move upward by a certain distance through the four first telescopic push rods, and then the workpiece to be cut and processed can be placed on the processing table. Then, the four first telescopic push rods can be used to make the protective cover move downward and abut against the top of the processing table, covering the mounting frame and the laser cutting module. Then, the workpiece can be cut by the laser cutting module. Through the protective cover, the chips generated by cutting can be effectively prevented from splashing on people.

[0013] Second, through the transparent observation window, the user can conveniently view the situation inside the protective cover; when the inner side wall of the transparent observation window is soiled due to adhesion of waste smoke, the cleaning liquid spray head can be first vertically moved to the inside of the transparent observation window through the two first linear slides and a certain amount of cleaning liquid can be sprayed on the inner side wall of the transparent observation window. Then, the cleaning brush can be moved to the inside of the transparent observation window through the two first linear slides. Then, the cleaning brush can be used to clean the inner side wall of the transparent observation window through the second telescopic push rod and the driving motor. Then, the cleaning brush is horizontally reset through the second telescopic push rod, and the cleaning brush and the cleaning liquid spray head are vertically reset through the two second linear slides.

[0014] Third, through the cleaning liquid storage cylinder, the liquid outlet pipe, the pump body and the liquid guide hose, cleaning liquid can be provided for the cleaning liquid spray head; when it is not necessary to make the cleaning liquid storage cylinder discharge liquid, the first control valve can be closed to avoid the volatilization of the cleaning liquid through the liquid inlet hopper.

[0015] Fourth, after the workpiece is placed on the processing table, the two third telescopic push rods can be used to make the two fixed pressing plates press the two ends of the workpiece on the processing table respectively. Then, the workpiece can be cut through the second linear slide, the fourth telescopic push rod and the laser cutting head. Description of the Drawings

[0016] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0017] Figure 1 is a structural schematic diagram of the present utility model;

[0018] Figure 2 is a structural schematic diagram of the mounting frame and the laser cutting module of the present utility model;

[0019] Figure 3 Structural schematic diagram of the first linear slide, fixing bracket, second telescopic push rod, mounting plate, cleaning liquid nozzle, cleaning liquid storage cylinder, liquid outlet pipe, second control valve, pump body, and liquid guiding hose of the present utility model;

[0020] Figure 4 Structural schematic diagram of the mounting plate, cleaning liquid nozzle, driving motor, cleaning brush, connecting cylinder, and connecting bolt of the present utility model.

[0021] In the figure: 101, processing table; 102, support leg; 103, mounting frame; 104, first telescopic push rod; 105, cross plate; 106, protective cover; 107, transparent observation window; 108, first linear slide; 109, fixing bracket; 110, second telescopic push rod; 111, mounting plate; 112, cleaning liquid nozzle; 113, driving motor; 114, cleaning brush; 115, connecting cylinder; 116, connecting bolt; 201, cleaning liquid storage cylinder; 202, liquid inlet hopper; 203, first control valve; 204, liquid outlet pipe; 205, second control valve; 206, pump body; 207, liquid guiding hose; 301, third telescopic push rod; 302, fixing pressing plate; 303, second linear slide; 304, fourth telescopic push rod; 305, laser cutting head. Detailed implementation manners

[0022] To better understand the present utility model, the content of the present utility model will be further clearly elaborated below in conjunction with embodiments. However, the protected content of the present utility model is not limited to the following embodiments only. In the following description, a large number of specific details are given to provide a more thorough understanding of the present utility model. However, it is obvious to those skilled in the art that the present utility model can be implemented without one or more of these details.

[0023] Such as Figure 1 、 3As shown in FIGS. 4, a protective mechanism for a laser cutting machine includes a processing table 101. Support legs 102 are provided at the bottom of the processing table 101. A U-shaped mounting frame 103 is arranged on the top of the processing table 101 in the left-right direction. A laser cutting module is provided on the top of the mounting frame 103. First telescopic push rods 104 are vertically arranged at the top corners of the processing table 101. Cross plates 105 are respectively arranged at the upper ends of the output shafts of the four first telescopic push rods 104. A protective cover 106 with an open bottom and capable of covering the outside of the mounting frame 103 and the laser cutting module is jointly arranged at the side ends of the four cross plates 105. A transparent observation window 107 is arranged at the front end of the protective cover 106. First linear slides 108 are arranged on the inner side wall at the front end of the protective cover 106 on both sides of the transparent observation window 107. A U-shaped fixing frame 109 is jointly arranged on the sliders of the two first linear slides 108. A second telescopic push rod 110 is horizontally arranged at the front end of the fixing frame 109. A mounting plate 111 is arranged at the end of the output shaft of the second telescopic push rod 110. A cleaning liquid spray head 112 is arranged at the upper part of the front end of the mounting plate 111. A driving motor 113 is horizontally arranged at the lower part of the front end of the mounting plate 111. A cleaning brush 114 adapted to the transparent observation window 107 is arranged on the output shaft of the driving motor 113. A liquid supply module for supplying liquid to the cleaning liquid spray head 112 is also arranged on the top of the protective cover 106. The cleaning liquid is alcohol.

[0024] As Figure 1 , 3 shown, the liquid supply module includes a cleaning liquid storage cylinder 201 arranged on the top of the protective cover 106. A liquid inlet hopper 202 is arranged on the top of the cleaning liquid storage cylinder 201. A first control valve 203 is arranged on the liquid inlet hopper 202. A liquid outlet pipe 204 passing through the top of the protective cover 106 is arranged at the bottom of the cleaning liquid storage cylinder 201. A second control valve 205 and a pump body 206 are arranged on the liquid outlet pipe 204. A liquid guiding hose 207 is arranged between the liquid outlet pipe 204 and the liquid inlet end of the cleaning liquid spray head 112.

[0025] As Figure 1 , 2 shown, the laser cutting module includes a pressing and fixing unit arranged at the left and right side ends on the top of the mounting frame 103 and a laser cutting unit arranged in the middle on the top of the mounting frame 103.

[0026] As Figure 1 , 2 shown, the pressing and fixing unit includes third telescopic push rods 301 vertically arranged at the left and right side ends on the top of the mounting frame 103. Fixed pressing plates 302 are jointly arranged at the lower ends of the output shafts of the third telescopic push rods 301 on both sides.

[0027] As Figure 1 , 2As shown in the figure, the laser cutting unit includes second linear slides 303 disposed on the left and right side ends of the bottom wall of the middle end of the top of the mounting bracket 103 in the front-rear direction. A fourth telescopic push rod 304 is vertically disposed on the slide of the second linear slide 303, and a laser cutting head 305 is disposed at the lower end of the output shaft of the fourth telescopic push rod 304.

[0028] The user can first synchronously extend the output shafts of the four first telescopic push rods 104 upward by a certain length, so that the protective cover 106 moves upward by a certain distance. Then, the workpiece to be cut can be placed on the processing table 101. The user can extend the output shafts of the two third telescopic push rods 301 downward by a certain length, so that the two fixed pressing plates 302 respectively press and fix the two ends of the workpiece on the processing table 101.

[0029] After that, the user can move the protective cover 106 downward through the four first telescopic push rods 104 until it abuts against the top of the processing table 101, covering the mounting bracket 103 and the laser cutting module. Then, the workpiece can be cut by the laser cutting module. Through the protective cover 106, it is possible to effectively prevent the chips generated by cutting from splashing onto people.

[0030] After that, the user can extend the output shaft of the fourth telescopic push rod 304 downward by a certain length so that the vertical position of the laser cutting head 305 is adapted to the top of the workpiece. Then, the laser cutting head 305 can be started, and the laser cutting head 305 can be moved in the front-rear direction through the second linear slide 303 to cut the workpiece. Subsequently, the laser cutting head 305 is turned off, and the laser cutting head 305 is reset through the second linear slide 303 and the fourth telescopic push rod 304.

[0031] Through the transparent observation window 107, the user can conveniently view the situation inside the protective cover 106. When the inner wall of the transparent observation window 107 is soiled due to adhesion of waste smoke, the cleaning liquid spray head 112 can be first vertically moved to the inside of the transparent observation window 107 through the two first linear slides 108. Then, by simply opening the second control valve 205 and starting the pump body 206, the cleaning liquid can leave the cleaning liquid storage cylinder 201 through the liquid outlet pipe 204 and reach the cleaning liquid spray head 112 through the liquid guiding hose 207, so as to spray a certain amount of cleaning liquid on the inner wall of the transparent observation window 107. After that, the cleaning brush 114 can be moved to the inside of the transparent observation window 107 through the two first linear slides 108. Then, the inner wall of the transparent observation window 107 can be cleaned by the cleaning brush 114 through the second telescopic push rod 110 and the driving motor 113. After that, the cleaning brush is horizontally reset through the second telescopic push rod 110, and the cleaning brush 114 and the cleaning liquid spray head 112 are reset upward through the two second linear slides 303.

[0032] When it is not necessary to make the cleaning liquid storage cylinder 201 discharge liquid, the first control valve 203 can be closed to prevent the cleaning liquid from volatilizing through the liquid inlet hopper 202.

[0033] According to another embodiment of the present utility model, as Figure 4 shown, a connecting cylinder 115 that is clamped and fixed to the output shaft of the driving motor 113 is provided at the rear end of the cleaning brush 114. A connecting bolt 116 for screwing and fixing the output shaft of the driving motor 113 is provided at the lower end of the connecting cylinder 115. A threaded connection hole adapted to the connecting bolt 116 is provided on the output shaft of the driving motor 113. The connecting bolt 116 is a hand-tightening bolt. Just make the connecting cylinder 115 clamped and fixed to the output shaft of the driving motor 113, and then make the connecting bolt 116 pass through the side wall of the connecting cylinder 115 and be screwed and fixed to the threaded connection hole, so as to realize the flexible fixation of the output shaft of the driving motor 113 and the cleaning brush 114; the user can also conveniently remove the cleaning brush 114 for cleaning or wear replacement.

[0034] The above are the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A protection mechanism for a laser cutting machine, comprising a processing table (101), wherein a support leg (102) is arranged at the bottom of the processing table (101), a U-shaped mounting frame (103) is arranged at the top of the processing table (101) along the left-right direction, and a laser cutting module is arranged at the top of the mounting frame (103), wherein: A first telescopic push rod (104) is vertically arranged at the top corner of the processing table (101), and the upper ends of the output shafts of the four first telescopic push rods (104) are respectively provided with horizontal plates (105), and the side ends of the four horizontal plates (105) are commonly provided with a protective cover (106) with a bottom opening and capable of covering the mounting frame (103) and the outside of the laser cutting module, and the front side end of the protective cover (106) is provided with a transparent observation window (107), and the inner side wall of the front side end of the protective cover (106) is provided with a first linear slide (108) located on the left and right sides of the transparent observation window (107), and the sliding of the two first linear slides (108) A U-shaped fixing frame (109) is commonly provided on the base, a second telescopic push rod (110) is transversely provided on the front side end of the fixing frame (109), a mounting plate (111) is provided at the end of the output shaft of the second telescopic push rod (110), a cleaning liquid spray head (112) is provided at the upper front end of the mounting plate (111), a driving motor (113) is transversely provided at the lower front end of the mounting plate (111), a cleaning brush (114) adapted to the transparent observation window (107) is provided on the output shaft of the driving motor (113), and a liquid supply module for supplying liquid to the cleaning liquid spray head (112) is also provided on the top of the protective cover (106).

2. The protective mechanism of the laser cutting machine according to claim 1, characterized in that: The liquid supply module comprises a cleaning liquid storage cylinder (201) arranged on the top of the protective cover (106); a liquid inlet hopper (202) is arranged on the top of the cleaning liquid storage cylinder (201); a first control valve (203) is arranged on the liquid inlet hopper (202); a liquid outlet pipe (204) penetrating the top of the protective cover (106) is arranged on the bottom of the cleaning liquid storage cylinder (201); a second control valve (205) and a pump body (206) are arranged on the liquid outlet pipe (204); and a liquid guide hose (207) is arranged between the liquid outlet pipe (204) and the liquid inlet end of the cleaning liquid nozzle (112).

3. The protective mechanism of the laser cutting machine according to claim 2, characterized in that: A connecting tube (115) is provided at the rear end of the cleaning brush (114) and is fixedly connected to the output shaft of the driving motor (113); a connecting bolt (116) is provided at the lower end of the connecting tube (115) and is used for threading and fixing the output shaft of the driving motor (113); and a threaded connecting hole that is compatible with the connecting bolt (116) is provided on the output shaft of the driving motor (113).

4. The protection mechanism of the laser cutting machine as claimed in claim 3, characterized in that: The connecting bolt (116) is a hand-tightened bolt.

5. The protection mechanism of the laser cutting machine according to claim 4, characterized in that: The laser cutting module comprises a pressing unit arranged at the left and right side ends of the top of the mounting frame (103) and a laser cutting unit arranged at the middle end of the top of the mounting frame (103).

6. The protection mechanism of the laser cutting machine according to claim 5, characterized in that: The pressing unit comprises third telescopic push rods (301) vertically arranged at the left and right side ends of the top of the mounting frame (103), and the lower ends of the output shafts of the third telescopic push rods (301) on both sides are respectively provided with fixed pressing plates (302).

7. The protection mechanism of the laser cutting machine according to claim 6, characterized in that: The laser cutting unit comprises a second linear slide (303) arranged at the left and right side ends of the bottom wall at the middle end of the top of the mounting frame (103) along the front-back direction, a fourth telescopic push rod (304) is vertically arranged on the slide seat of the second linear slide (303), and a laser cutting head (305) is arranged at the lower end of the output shaft of the fourth telescopic push rod (304).

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