Anti-collision device for laser cutting

Abstract

The anti-collision device for laser cutting comprises a laser cutting head, an installation sleeve and a plurality of protection plates, the installation sleeve is fixedly connected to the surface of the laser cutting head in a sleeved mode, the protection plates are distributed on the outer side of the installation sleeve at equal intervals, and a plurality of fixing rods are fixed to the middles of the outer side walls of the protection plates. The surface of the end, away from the mounting sleeve, of each fixing rod is slidably connected with a sliding sleeve. According to the laser cutting device, the laser cutting head, the installation sleeve, the multiple protection plates, the fixing rod, the sliding sleeve, the spring and the contact switch are arranged, the protection plates are fixedly installed through the installation rod and the screw on the lantern ring, when the laser cutting head moves, the protection plates can play a role in protecting the laser cutting head, and the laser cutting head is prevented from directly colliding with a workpiece; and after the protection plate collides with the workpiece and the fixed rod is in contact with the contact switch in the sliding sleeve, the laser cutting machine automatically stops working, and the laser cutting head stops moving, so that the laser cutting head is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting machines, in particular to an anti-collision device for laser cutting. Background Art

[0002] Laser cutting is to focus the laser light emitted from the laser into a high-power density laser beam through the optical path system. The laser beam irradiates the surface of the workpiece, causing the workpiece to reach the melting point or boiling point, and at the same time, the high-pressure gas coaxial with the beam blows away the molten or vaporized metal. As the relative position of the beam and the workpiece moves, the material is eventually cut, thereby achieving the purpose of cutting.

[0003] When the laser cutting machine is working, the cutting head is driven to move by the moving mechanism, but there is no protective mechanism on the surface of the existing cutting head. If a highly uneven workpiece is placed on the surface of the cutting machine, the cutting head may directly collide with the workpiece during movement, causing the cutting head to be damaged by the collision. The replacement and repair costs after damage are high. Secondly, the debris generated by cutting is easy to accumulate at the cutting position, affecting the cleanliness and flatness of the cutting position. Therefore, the utility model proposes an anti-collision device for laser cutting. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a laser cutting anti-collision device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a laser cutting anti-collision device, comprising a laser cutting head, a mounting sleeve and a plurality of protective plates, the mounting sleeve is fixedly sleeved on the surface of the laser cutting head, a plurality of protective plates are equidistantly distributed on the outside of the mounting sleeve, a plurality of fixing rods are fixed to the middle of the outer wall of the protective plate, a sliding sleeve is slidably connected to the surface of each fixing rod away from one end of the mounting sleeve, a mounting rod is fixedly connected to the end of the sliding sleeve away from the fixing rod, a screw for installing the protective plate is fixed to the other end of the mounting rod, a spring is jointly sleeved on the fixing rod and the inner wall of the sliding sleeve is fixedly connected to a contact switch, the contact switch is connected to the controller of the laser cutting machine, a blowing assembly is fixed to the side wall of the bottom end of the mounting sleeve, and a micro air pump matching the blowing assembly is fixed to the top of the outer wall of the mounting sleeve.

[0006] Furthermore, a clamping bolt passes through the top end of the side wall of the mounting sleeve and is threadedly connected thereto, and one end of the clamping bolt located in the mounting sleeve is in contact with the outer side wall of the laser cutting head.

[0007] Furthermore, a through hole for passing the mounting rod is opened at the top of the protective plate, and an internal threaded cap is rotatably connected to the surface of the screw rod, and the internal threaded cap is fitted with the surface of the protective plate.

[0008] Furthermore, the mounting rod and the through hole are both square.

[0009] Furthermore, two ends of the spring are respectively fitted with the outer side wall of the mounting sleeve and the surface of the protective plate.

[0010] Furthermore, one end of the fixing rod located in the sliding sleeve is fixedly connected to a slider, the slider is slidably connected to the inner wall of the sliding sleeve, and a rubber sleeve is fixed to the surface of the slider. The sliding sleeve is provided with an anti-drop hole near one end of the fixing rod, and the size of the anti-drop hole is smaller than the slider.

[0011] Furthermore, the blowing assembly includes an annular tube, which is fixedly connected to the outer wall of the mounting sleeve with a plurality of connecting rods, a plurality of inclined exhaust pipes are fixed at equal distances on the lower surface of the annular tube, an air inlet pipe is fixed to one side of the top end of the annular tube, and a hose is fixedly connected to the air outlet of the micro air pump and the air inlet pipe.

[0012] Beneficial effects of the utility model:

[0013] 1. When the utility model is in use, the anti-collision device for laser cutting is provided with a laser cutting head, a mounting sleeve, a plurality of protective plates, a fixing rod, a sliding sleeve, a spring and a contact switch. The protective plate is fixedly installed by the mounting rod and the screw on the sleeve ring. When the laser cutting head moves, the protective plate can protect the laser cutting head to avoid direct collision between the laser cutting head and the workpiece. When the protective plate hits the workpiece and the fixing rod contacts the contact switch inside the sliding sleeve, the laser cutting machine automatically stops working and stops the laser cutting head from moving, thereby protecting the laser cutting head.

[0014] 2. When the utility model is in use, the anti-collision device for laser cutting is provided with a blowing assembly, which includes an annular tube, a connecting rod, an exhaust pipe, an air inlet pipe and a micro air pump. When the laser cutting head cuts the steel plate, the blowing assembly can blow the debris generated by the cutting to the periphery of the cutting position to avoid the cutting debris from falling on the cutting position, thereby ensuring that the cutting position is smooth and clean.

[0015] 3. When the utility model is in use, the anti-collision device for laser cutting is provided with a mounting sleeve and a tightening bolt. After the mounting sleeve is sleeved on the surface of the laser cutting head, the device can be installed and fixed by tightening the locking bolt against the surface of the laser cutting head. Therefore, for the laser cutting head without an anti-collision structure, subsequent installation is also simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 : An overall schematic diagram of the utility model;

[0018] Figure 2 : A partial stereogram of the utility model;

[0019] Figure 3 :The utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 4 : A top view of the utility model;

[0021] Figure 5 : A three-dimensional diagram of the protective plate of the present utility model.

[0022] The reference numerals are as follows:

[0023] 1. Laser cutting head; 2. Mounting sleeve; 3. Protective plate; 4. Tightening bolt; 5. Fixing rod; 6. Sliding sleeve; 7. Mounting rod; 8. Perforation; 9. Screw; 10. Internal threaded cap; 11. Spring; 12. Anti-drop hole; 13. Sliding block; 14. Contact switch; 15. Ring tube; 16. Connecting rod; 17. Exhaust pipe; 18. Intake pipe; 19. Micro air pump; 20. Hose. DETAILED DESCRIPTION

[0024] 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 of 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.

[0025] like Figure 1-Figure 5As shown, it relates to an anti-collision device for laser cutting, including a laser cutting head 1, a mounting sleeve 2 and a plurality of protective plates 3. The mounting sleeve 2 is fixedly sleeved on the surface of the laser cutting head 1, and the plurality of protective plates 3 are equidistantly distributed on the outside of the mounting sleeve 2. A plurality of fixing rods 5 are fixed to the middle of the outer wall of the protective plate 3, and a sliding sleeve 6 is slidably connected to the surface of each fixing rod 5 away from the mounting sleeve 2. The end of the sliding sleeve 6 away from the fixing rod 5 is fixedly connected to the mounting rod 7, and a screw 9 for mounting the protective plate 3 is fixed to the other end of the mounting rod 7. A spring 11 is sleeved together with the surface of the fixing rod 5 and the sliding sleeve 6. A contact switch 14 is fixedly connected to the inner wall of the sliding sleeve 6, and the contact switch 14 is connected to the controller of the laser cutting machine. A blowing assembly is fixed to the side wall of the bottom end of the mounting sleeve 2, and a micro air pump 19 matching the blowing assembly is fixed to the top of the outer wall of the mounting sleeve 2.

[0026] like Figure 1 As shown, a clamping bolt 4 is passed through the top end of the side wall of the mounting sleeve 2 and is threadedly connected thereto, and one end of the clamping bolt 4 located in the mounting sleeve 2 is in contact with the outer side wall of the laser cutting head 1 .

[0027] The mounting sleeve 2 can be fixed to the surface of the laser cutting head 1 by tightening the bolts 4, so that the device can be installed later.

[0028] like Figure 1-Figure 3 As shown, a through hole 8 for passing the mounting rod 7 is opened at the top of the protective plate 3 , and an internal threaded cap 10 is rotatably connected to the surface of the screw rod 9 , and the internal threaded cap 10 is in contact with the surface of the protective plate 3 .

[0029] After the through hole 8 of the protective plate 3 is put on the surface of the mounting rod 7, the internal threaded cap 10 is screwed on the surface of the screw rod 9 to squeeze and fix the protective plate 3. In this embodiment, the protective plate 3 is made of plastic material, which can absorb energy when impacted, and if the protective plate 3 is damaged by impact, the protective plate 3 can be removed separately for replacement.

[0030] like Figure 3 As shown, the mounting rod 7 and the through hole 8 are both square.

[0031] The square structure can prevent the protective plate 3 from rotating relative to the mounting rod 7 after being sleeved on the surface of the mounting rod 7 .

[0032] like Figure 3 As shown, the two ends of the spring 11 are respectively fitted with the outer wall of the mounting sleeve 2 and the surface of the protective plate 3. The end of the fixing rod 5 located in the sliding sleeve 6 is fixedly connected with a slider 13, the slider 13 is slidably connected with the inner wall of the sliding sleeve 6, and a rubber sleeve is fixed on the surface of the slider 13. The sliding sleeve 6 is provided with an anti-drop hole 12 at one end close to the fixing rod 5, and the size of the anti-drop hole 12 is smaller than the slider 13.

[0033] The spring 11 can cooperate with the slider 13 to rub against the inner wall of the sleeve 6 to play a buffering role when the protective plate 3 is hit, thereby preventing the laser cutting head 1 from being directly hit, thereby protecting the laser cutting head 1.

[0034] like Figure 1-Figure 2 As shown, the blowing assembly includes an annular tube 15, and the annular tube 15 and the outer wall of the mounting sleeve 2 are fixedly connected with a plurality of connecting rods 16, a plurality of inclined exhaust pipes 17 are fixedly arranged at equal distances on the lower surface of the annular tube 15, an air inlet pipe 18 is fixedly arranged on one side of the top end of the annular tube 15, and a hose 20 is fixedly connected between the air outlet of the micro air pump 19 and the air inlet pipe 18.

[0035] When the laser cutting head 1 cuts the steel plate, the micro air pump 19 can blow air into the annular tube 15 through the hose 20, and then the air is blown out from multiple exhaust pipes 17, which can blow the sparks and debris generated by the cutting away from the cutting position to avoid the debris from accumulating at the cutting position.

[0036] Working principle: When the laser cutting machine drives the laser cutting head 1 to move, if a highly uneven workpiece hits the laser cutting head 1, the protective plate 3 will contact the workpiece. At this time, the protective plate 3 will squeeze the spring 11 to prevent the laser cutting head 1 from being directly hit. If the spring 11 is completely compressed during the impact, and the slider 13 contacts the contact switch 14 in the sleeve 6, the laser cutting machine will stop working to prevent the laser cutting head 1 from continuing to move. If the protective plate 3 is damaged due to the impact, the protective plate 3 can be removed and replaced.

[0037] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A laser cutting anti-collision device, Features: The invention comprises a laser cutting head (1), a mounting sleeve (2) and a plurality of protective plates (3), wherein the mounting sleeve (2) is fixedly sleeved on the surface of the laser cutting head (1), and the plurality of protective plates (3) are equidistantly distributed and arranged on the outside of the mounting sleeve (2); a plurality of fixing rods (5) are fixed to the middle of the outer wall of the protective plate (3); a surface of each fixing rod (5) away from the mounting sleeve (2) is slidably connected to a sliding sleeve (6); an end of the sliding sleeve (6) away from the fixing rod (5) is fixedly connected to a mounting rod (7); a screw (9) for mounting the protective plate (3) is fixed to the other end of the mounting rod (7); a spring (11) is sleeved on the surfaces of the fixing rod (5) and the sliding sleeve (6); a contact switch (14) is fixedly connected to the inner wall of the sliding sleeve (6); the contact switch (14) is connected to the controller of the laser cutting machine; a blowing assembly is fixed to the side wall at the bottom end of the mounting sleeve (2); and a micro air pump (19) matching the blowing assembly is fixed to the top end of the outer wall of the mounting sleeve (2).

2. The anti-collision device for laser cutting according to claim 1, Features: A clamping bolt (4) passes through the top end of the side wall of the mounting sleeve (2) and is threadedly connected thereto; one end of the clamping bolt (4) located inside the mounting sleeve (2) is in contact with the outer side wall of the laser cutting head (1).

3. The anti-collision device for laser cutting according to claim 1, Features: The top of the protective plate (3) is provided with a through hole (8) for passing the mounting rod (7), and the surface of the screw rod (9) is rotatably connected with an internal threaded cap (10), and the internal threaded cap (10) is in contact with the surface of the protective plate (3).

4. The anti-collision device for laser cutting according to claim 3, Features: The mounting rod (7) and the through hole (8) are both square.

5. The anti-collision device for laser cutting according to claim 1, Features: The two ends of the spring (11) are respectively fitted with the outer wall of the mounting sleeve (2) and the surface of the protective plate (3).

6. The anti-collision device for laser cutting according to claim 1, Features: One end of the fixing rod (5) located in the sliding sleeve (6) is fixedly connected to a sliding block (13), the sliding block (13) is slidably connected to the inner wall of the sliding sleeve (6), and a rubber sleeve is fixed to the surface of the sliding block (13), and an anti-drop hole (12) is formed at one end of the sliding sleeve (6) close to the fixing rod (5), and the size of the anti-drop hole (12) is smaller than that of the sliding block (13).

7. The anti-collision device for laser cutting according to claim 1, Features: The blowing assembly comprises an annular tube (15), the annular tube (15) and the outer side wall of the mounting sleeve (2) are fixedly connected to a plurality of connecting rods (16), a plurality of inclined exhaust pipes (17) are fixedly connected at equal distances on the lower surface of the annular tube (15), an air inlet pipe (18) is fixedly connected to one side of the top end of the annular tube (15), and a hose (20) is fixedly connected to the air outlet of the micro air pump (19) and the air inlet pipe (18).

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