Laser cutting equipment for metal part machining

Abstract

The invention discloses laser cutting equipment for metal part machining, and belongs to the field of laser cutting, the laser cutting equipment comprises a machining table and a laser cutter, the outer wall of the laser cutter is fixedly sleeved with a protective cover, the outer wall of the protective cover is fixedly connected with a liquid storage tank, and the bottom of the liquid storage tank is fixedly connected with a liquid outlet pipe; a liquid coating hopper is fixedly connected to the bottom of the liquid outlet pipe, rolling wheels are rotatably connected to the bottom of the outer side of the protective cover, the bottom of the liquid coating hopper is attached to the tops of the rolling wheels, and a control rod is slidably connected to the inner wall of the protective cover. A control rod moves downwards after encountering a cutting groove hole, communication between a liquid storage box and a liquid coating hopper at the upper end and the lower end of a liquid outlet pipe is controlled through a control assembly, and cooling oil falls onto the outer wall of the upper side of a roller through the liquid outlet pipe and the liquid coating hopper and then is coated on the upper surface of a metal piece to absorb high temperature generated at the cutting position; and rapid dissipation of the temperature at the cutting position of the metal part is accelerated, so that thermal deformation is reduced, and the laser cutting stability of the metal part is improved.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting, and in particular to laser cutting equipment for metal part processing. Background Art

[0002] Laser cutting of metal parts is a technology that uses a high-energy laser beam to irradiate the metal surface to melt, vaporize or ignite it, and at the same time uses a high-speed airflow to blow away the molten metal, thereby achieving metal cutting.

[0003] The advantages of laser cutting are that it has the characteristics of high precision, high efficiency, high flexibility, non-contact, etc., and can quickly cut metal parts of various shapes and sizes. In addition, laser cutting can also be performed in complex three-dimensional space, and can achieve high-quality cutting effects such as no burrs, no slag, and no knife marks on the cut section.

[0004] However, laser cutting is a thermal process. During the laser cutting process, the material will be affected by the high-temperature heat source and is prone to thermal deformation. If the product is deformed and warped after laser cutting, it will need to be bent and straightened to restore the product to its original shape and state, which increases the trouble of processing. Summary of the invention

[0005] In order to overcome the above-mentioned technical problems, the purpose of the present invention is to provide a laser cutting device for metal parts processing, so as to solve the problem in the prior art that since laser cutting is a thermal processing, during the laser cutting process, the material will be affected by the high-temperature heat source and is prone to thermal deformation. If the product is deformed and warped after laser cutting, it is necessary to bend and straighten the product to restore it to its original shape and state, which increases the trouble of processing.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A laser cutting device for metal parts processing comprises a processing table and a laser cutter, wherein a protective cover is fixedly mounted on the outer wall of the laser cutter, a liquid storage tank is fixedly connected to the outer wall of the protective cover, a liquid outlet pipe is fixedly connected to the bottom of the liquid storage tank, a coating liquid hopper is fixedly connected to the bottom of the liquid outlet pipe, a roller is rotatably connected to the bottom of the outer side of the protective cover, the bottom of the coating liquid hopper is in contact with the top of the roller, a fixed frame is fixedly connected to the inner wall of the protective cover, a control rod is slidably connected to the fixed frame, and the control rod cooperates with the liquid outlet pipe through a control component.

[0008] As a further solution of the present invention: the liquid storage tank, roller, control rod and control assembly are provided in four groups and are respectively located at the four side walls of the protective cover.

[0009] As a further solution of the present invention: the control component includes a sliding rod, and the two groups of sliding rods are respectively fixedly connected with a block and a pull rope, the block slides on the liquid outlet pipe, the other end of the pull rope is fixedly connected to the top of the control rod, the protective cover is rotatably connected with a rotating rod, the pull rope slides on the outer wall of the rotating rod, the outer wall of the sliding rod is provided with a reset spring, and the two ends of the reset spring are respectively against the outer wall of the protective cover and the block.

[0010] As a further solution of the present invention: the control component includes a sliding sleeve, one end of the sliding sleeve is connected to the liquid outlet pipe through a connecting pipe, a push rod is slidably connected inside the sliding sleeve, one end of the push rod extends from the sliding sleeve but passes through the protective cover and is fixedly connected to the trapezoidal block, a control block is fixedly connected to the top of the control rod, the control block cooperates with the trapezoidal block, two return springs are arranged inside the sliding sleeve, and a one-way valve is arranged inside the connecting pipe and the sliding sleeve.

[0011] As a further solution of the present invention: a conical block is fixedly connected to the bottom of the control rod.

[0012] As a further solution of the present invention: a ball bearing is arranged at the bottom of the conical block.

[0013] As a further solution of the present invention: a return spring three is sleeved on the outer wall of the control rod, and two ends of the return spring three are respectively against the fixed frame and the conical block.

[0014] As a further solution of the present invention: the outer wall of the control rod is fixedly connected to a limiting block, and the limiting block is located on the upper side of the fixed frame.

[0015] As a further solution of the present invention: the side wall of the protective cover is fixedly connected to a fixing frame, the side wall of the fixing frame is provided with a groove, a slider is slidably connected inside the groove, the side wall of the slider is rotatably connected to the rotating shaft, the roller is fixedly connected to the outer wall of the rotating shaft, a tensioning spring is arranged inside the groove, and the tensioning spring is against the slider.

[0016] As a further solution of the present invention: an air suction pump is arranged on the side wall of the laser cutter, the air suction pump is connected to the protective cover through an air suction pipe, a processing box is arranged on the top of the laser cutter, and the air outlet end of the air suction pump is connected to the processing box.

[0017] Beneficial effects of the present invention:

[0018] In the present invention, the control rod inside the outer roller is driven by the protective cover to move in contact with the metal part. The control rod moves downward after encountering the cutting slot, and then the control component controls the connection between the liquid storage tank and the coating hopper at the upper and lower ends of the liquid outlet pipe. At this time, the heat dissipation oil inside the liquid storage tank enters the coating hopper through the liquid outlet pipe, and then falls onto the outer wall on the upper side of the roller. At the same time, the roller rotates to apply the heat dissipation oil on the outer wall to the upper surface of the metal part to absorb the high temperature generated at the cutting point, accelerate the rapid dissipation of the temperature at the cutting point of the metal part, thereby reducing thermal deformation and improving the stability of laser cutting of metal parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the connection structure of the laser cutter and the protective cover of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the protective cover of the present invention;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the protective cover of the present invention;

[0024] Figure 5 The present invention Figure 4 The enlarged structural diagram of part A in the middle;

[0025] Figure 6 It is a structural schematic diagram of Embodiment 2 of the present invention;

[0026] Figure 7 The present invention Figure 6 The enlarged structural diagram of part B in the middle;

[0027] Figure 8 It is a schematic diagram of the conical block structure of the present invention.

[0028] In the figure: 1, processing table; 101, fixed frame; 2, laser cutter; 3, protective cover; 4, liquid storage tank; 401, liquid outlet pipe; 402, coating liquid bucket; 5, fixed frame; 501, groove; 502, tension spring; 503, slider; 6, roller; 601, rotating shaft; 7, control rod; 701, conical block; 711, ball; 702, reset spring three; 703, limit block; 8, control assembly; 801, slide bar; 811, stop block; 812, pull rope; 813, rotating rod; 814, reset spring one; 802, sliding sleeve; 821, push rod; 822, connecting pipe; 823, trapezoidal block; 824, control block; 825, reset spring two; 9, suction pump; 901, suction pipe; 902, processing box. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1:

[0031] like Figure 1-Figure 5 and Figure 8 As shown, a laser cutting device for metal parts processing includes a processing table 1 and a laser cutter 2. A protective cover 3 is fixedly mounted on the outer wall of the laser cutter 2. A liquid storage tank 4 is fixedly connected to the outer wall of the protective cover 3. A liquid outlet pipe 401 is fixedly connected to the bottom of the liquid storage tank 4. A liquid coating hopper 402 is fixedly connected to the bottom of the liquid outlet pipe 401. A roller 6 is rotatably connected to the bottom of the outer side of the protective cover 3. The outer wall of the roller 6 is an oil-absorbing sponge or oil-absorbing cloth, so that the liquid coating hopper 402 can apply heat dissipation oil to the outer wall of the roller 6, and then the roller 6 rotates to apply the heat dissipation oil to the outer wall of the metal part. The bottom of the bucket 402 is in contact with the top of the roller 6, the inner wall of the protective cover 3 is fixedly connected to a fixed frame 101, and the fixed frame 101 is slidably connected to a control rod 7, and the control rod 7 cooperates with the liquid outlet pipe 401 through a control component 8. There are four groups of liquid storage tanks 4, rollers 6, control rods 7 and control components 8, and they are respectively located on the four side walls of the protective cover 3. By arranging rollers 6 on all four sides of the protective cover 3 to apply heat dissipation oil, no matter in which direction the laser cutter 2 moves, the rollers 6 can be applied with heat dissipation oil, thereby improving the comprehensiveness of oil application and heat dissipation.

[0032] like Figure 4 and Figure 5As shown, the control assembly 8 in the above-mentioned includes a slide bar 801, and two groups of slide bars 801 are respectively fixedly connected with a stopper 811 and a pull rope 812, the stopper 811 slides on the liquid outlet pipe 401, and the other end of the pull rope 812 is fixedly connected to the top of the control rod 7, and the protective cover 3 is rotatably connected with a rotating rod 813, and the pull rope 812 slides on the outer wall of the rotating rod 813. The outer wall of the slide bar 801 is sleeved with a return spring 814, and the two ends of the return spring 814 are respectively against the outer wall of the protective cover 3 and the stopper 811. When the bottom of the control rod 7 moves to the cutting slot position on the metal part, the control rod 7 will move downward, and the control rod 7 moves downward. The movement will pull the pull rope 812 downward, and the pull rope 812 pulls the slide bar 801 to move through the rotating rod 813. The slide bar 801 drives the stopper 811 to move out from the inner wall of the liquid outlet pipe 401, so that the upper and lower ends of the liquid outlet pipe 401 are connected, thereby providing heat dissipation oil. When the control rod 7 is moved away from the cutting slot position on the metal part, the control rod 7 moves upward and no longer pulls the slide bar 801 through the pull rope 812. At this time, the stopper 811 is pushed into the liquid outlet pipe 401 by the tension of the reset spring 814 to block the oil supply, thereby avoiding unnecessary loss of heat dissipation oil and improving the accuracy of the heat dissipation oil use position.

[0033] like Figure 4 and Figure 8 As shown, a conical block 701 is fixedly connected to the bottom of the control rod 7. Through the setting of the conical block 701, when the laser cutter 2 cuts a larger slot, the conical surface of the conical block 701 can stably move out of the slot, avoiding the outer wall of the control rod 7 from abutting against the slot and being unable to move, thereby improving the stability of movement. The end point setting of the conical block 701 can identify the shallower slot cut, and then drive the control rod 7 to move downward, and then control the conduction size of the liquid outlet pipe 401 to supply different amounts of heat dissipation oil, thereby improving the stability of the heat dissipation oil supply and avoiding waste. A ball 711 is set at the bottom of the conical block 701, and the ball 711 is set to roll on the surface of the metal part to avoid the conical block. The end of 701 scratches the metal part, and the diameter of the ball 711 is less than 0.3mm, which is convenient for identifying the small slots cut by the laser cutter 2. At the same time, a reset spring 3 702 is sleeved on the outer wall of the control rod 7, and the two ends of the reset spring 3 702 are respectively against the fixed frame 101 and the conical block 701. The tension of the reset spring 3 702 pushes the control rod 7 to move downward when encountering the slot, thereby improving the stability of the control rod 7 driving the control component 8 to work, and the outer wall of the above-mentioned control rod 7 is fixedly connected to the limit block 703, and the limit block 703 is located on the upper side of the fixed frame 101. The limit block 703 is used to limit the downward movement of the control rod 7 to avoid the control rod 7 from moving a long distance downward and being unable to reset, thereby improving the stability of use.

[0034] like Figure 3As shown, the side wall of the protective cover 3 is fixedly connected to the fixing frame 5, and the side wall of the fixing frame 5 is provided with a groove 501, and a slider 503 is slidably connected inside the groove 501. The side wall of the slider 503 is rotatably connected to the rotating shaft 601, and the roller 6 is fixedly connected to the outer wall of the rotating shaft 601. A tensioning spring 502 is arranged inside the groove 501, and the tensioning spring 502 abuts against the slider 503. The slider 503 is pushed downward by the tension of the tensioning spring 502. The slider 503 can drive the roller 6 on the rotating shaft 601 to maintain the force against the surface of the metal part, thereby avoiding the formation of a gap between the roller 6 and the metal part and improving the stability of the oiling.

[0035] like Figure 1 and Figure 2 As shown, the side wall of the laser cutter 2 is provided with an air suction pump 9, and the air suction pump 9 is connected with the protective cover 3 through the air suction pipe 901. By starting the air suction pump 9, the air suction pump 9 sucks air into the protective cover 3, and absorbs the smoke generated by the laser cutter 2 when cutting inside the protective cover 3, so as to prevent the smoke from overflowing and being absorbed by the human body, thereby improving the safety of processing. The protective cover 3 is set at a close distance to the laser cutter 2, which can prevent the smoke from spreading to a larger range before being processed, thereby improving the convenience of processing. At the same time, a processing box 902 is set on the top of the laser cutter 2, and the air outlet end of the air suction pump 9 is connected with the processing box 902, and the smoke sucked by the air suction pump 9 is sent to the processing box 902 for processing.

[0036] Embodiment 2:

[0037] like Figure 6-Figure 7 As shown, a laser cutting device for metal parts processing includes a processing table 1 and a laser cutter 2, a protective cover 3 is fixedly mounted on the outer wall of the laser cutter 2, a liquid storage tank 4 is fixedly connected to the outer wall of the protective cover 3, a liquid outlet pipe 401 is fixedly connected to the bottom of the liquid storage tank 4, a coating liquid hopper 402 is fixedly connected to the bottom of the liquid outlet pipe 401, a roller 6 is rotatably connected to the bottom of the outer side of the protective cover 3, the bottom of the coating liquid hopper 402 is in contact with the top of the roller 6, a fixed frame 101 is fixedly connected to the inner wall of the protective cover 3, a control rod 7 is slidably connected to the fixed frame 101, and the control rod 7 cooperates with the liquid outlet pipe 401 through a control component 8, and four groups of liquid storage tank 4, roller 6, control rod 7 and control component 8 are provided, and are respectively located at the positions of the four side walls of the protective cover 3.

[0038] The control assembly 8 includes a sleeve 802, one end of which is connected to the liquid outlet pipe 401 through a connecting pipe 822, a push rod 821 is slidably connected inside the sleeve 802, one end of the push rod 821 extends from the sleeve 802 and passes through the protective cover 3 and is fixedly connected to the trapezoidal block 823, a control block 824 is fixedly connected to the top of the control rod 7, the control block 824 cooperates with the trapezoidal block 823, a return spring 825 is arranged inside the sleeve 802, and a one-way valve is arranged inside the connecting pipe 822 and the sleeve 802; when the control rod 7 moves to the slot position cut by the laser cutter 2, the control rod 7 moves downward, driving the control block 824 to move downward, and the control block 824 and the trapezoidal block 8 23 are offset from each other, pushing the trapezoidal block 823 to move, and the trapezoidal block 823 drives the push rod 821 to slide inside the sliding sleeve 802, pushing the air inside the sliding sleeve 802 to the liquid outlet pipe 401 through the connecting pipe 822, and the air enters the liquid outlet pipe 401. Then, because the heat dissipation oil pressure inside the upper liquid storage tank 4 is greater than the pressure inside the coating hopper 402, the air pressure will enter the coating hopper 402, and then exert pressure on the heat dissipation oil inside the coating hopper 402, thereby increasing the amount of heat dissipation oil inside the coating hopper 402 flowing out to the roller 6, so that the roller 6 rolls to the cutting part of the metal part, which can apply more heat dissipation oil to the cutting part, thereby improving the heat dissipation efficiency at the cutting part.

[0039] The working principle of the present invention is as follows: when the user uses it, the laser cutter 2 is driven downward by the movable lifting structure on the processing table 1, so that the roller 6 on the outside of the protective cover 3 is in contact with the upper surface of the metal part, and then the laser cutter 2 is started to cut the metal part. At the same time, the laser cutter 2 is moved horizontally and vertically by the movable lifting structure while cutting to cut different shapes or grooves. When the laser cutter 2 moves, the protective cover 3 is driven to move, and the control rod 7 inside the outer roller 6 is driven by the protective cover 3 to move in contact with the metal part, and the control rod 7 is moved to the metal part to cut. After the shape or groove is positioned, the control rod 7 moves downward, and then the control component 8 controls the connection between the liquid storage tank 4 and the coating hopper 402 at the upper and lower ends of the liquid outlet pipe 401. At this time, the heat dissipation oil inside the liquid storage tank 4 enters the coating hopper 402 through the liquid outlet pipe 401, and then falls onto the outer wall on the upper side of the roller 6. At the same time, the roller 6 rotates to apply the heat dissipation oil on the outer wall to the upper surface of the metal part, and the heat dissipation oil is applied to the cutting part of the metal part. The heat dissipation oil absorbs the high temperature generated at the cutting part by the heat dissipation oil, which accelerates the rapid dissipation of the temperature at the cutting part of the metal part, thereby reducing thermal deformation and improving the stability of laser cutting of metal parts.

[0040] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A laser cutting device for metal parts processing, comprising a processing table (1) and a laser cutter (2), characterized in that: The outer wall of the laser cutter (2) is sleeved with a protective cover (3), the outer wall of the protective cover (3) is fixedly connected to a liquid storage tank (4), the bottom of the liquid storage tank (4) is fixedly connected to a liquid outlet pipe (401), the bottom of the liquid outlet pipe (401) is fixedly connected to a coating liquid bucket (402), the outer bottom of the protective cover (3) is rotatably connected to a roller (6), the bottom of the coating liquid bucket (402) is in contact with the top of the roller (6), the inner wall of the protective cover (3) is fixedly connected to a fixed frame (101), the fixed frame (101) is slidably connected to a control rod (7), and the control rod (7) cooperates with the liquid outlet pipe (401) through a control component (8).

2. The laser cutting equipment for metal parts processing according to claim 1, characterized in that: The liquid storage tank (4), roller (6), control rod (7) and control assembly (8) are provided in four groups and are respectively located at the positions of the four side walls of the protective cover (3).

3. The laser cutting equipment for metal parts processing according to claim 1, characterized in that: The control component (8) includes a sliding rod (801), and two groups of the sliding rod (801) are respectively fixedly connected with a block (811) and a pull rope (812), the block (811) slides on the liquid outlet pipe (401), and the other end of the pull rope (812) is fixedly connected to the top of the control rod (7), and the protective cover (3) is rotatably connected with a rotating rod (813), and the pull rope (812) slides on the outer wall of the rotating rod (813), and the outer wall of the sliding rod (801) is provided with a reset spring (814), and the two ends of the reset spring (814) are respectively against the outer wall of the protective cover (3) and the block (811).

4. The laser cutting equipment for metal parts processing according to claim 1, characterized in that: The control assembly (8) comprises a sliding sleeve (802), one end of which is connected to the liquid outlet pipe (401) via a connecting pipe (822), a push rod (821) is slidably connected inside the sliding sleeve (802), one end of which extends from the sliding sleeve (802) but passes through the protective cover (3) and is fixedly connected to a trapezoidal block (823), a control block (824) is fixedly connected to the top of the control rod (7), the control block (824) cooperates with the trapezoidal block (823), a return spring 2 (825) is arranged inside the sliding sleeve (802), and a one-way valve is arranged inside both the connecting pipe (822) and the sliding sleeve (802).

5. A laser cutting device for metal parts processing according to claim 3 or 4, characterized in that: A conical block (701) is fixedly connected to the bottom of the control rod (7).

6. The laser cutting equipment for metal parts processing according to claim 5, characterized in that: A ball (711) is disposed at the bottom of the conical block (701).

7. The laser cutting equipment for metal parts processing according to claim 5, characterized in that: The outer wall of the control rod (7) is sleeved with a return spring three (702), and the two ends of the return spring three (702) are respectively against the fixed frame (101) and the conical block (701).

8. The laser cutting equipment for metal parts processing according to claim 5, characterized in that: The outer wall of the control rod (7) is fixedly connected to a limit block (703), and the limit block (703) is located on the upper side of the fixed frame (101).

9. The laser cutting equipment for metal parts processing according to claim 1, characterized in that: The side wall of the protective cover (3) is fixedly connected to a fixing frame (5), the side wall of the fixing frame (5) is provided with a groove (501), a slider (503) is slidably connected inside the groove (501), the side wall of the slider (503) is rotatably connected to a rotating shaft (601), the roller (6) is fixedly connected to the outer wall of the rotating shaft (601), a tensioning spring (502) is arranged inside the groove (501), and the tensioning spring (502) is against the slider (503).

10. The laser cutting equipment for metal parts processing according to claim 1, characterized in that: An air suction pump (9) is arranged on the side wall of the laser cutter (2), and the air suction pump (9) is connected to the protective cover (3) through an air suction pipe (901). A processing box (902) is arranged on the top of the laser cutter (2), and the air outlet end of the air suction pump (9) is connected to the processing box (902).

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