Dust removing and slag stopping assembly and laser cutting equipment

Abstract

The utility model discloses a dust removing and slag stopping assembly and laser cutting equipment, and relates to the technical field of laser cutting, and the dust removing and slag stopping assembly comprises a slag removing pipe and a power driving structure; the deslagging pipe is provided with a first end part and a second end part which are communicated with each other; the second end part is communicated with a negative pressure device, so that negative pressure suction force is formed in the first end part and the deslagging pipe; the deslagging pipe is fixed on the power driving structure, and the power driving structure drives the deslagging pipe to do linear reciprocating motion between a dust collection position and a blanking position. The special dust removal and slag stopping assembly is designed, a slag removal pipe provided in the assembly is designed to be of a hollow structure, the slag removal pipe is connected with external negative pressure equipment, and when a pipe workpiece is cut, waste slag can be sucked and discharged out of a cutting area in real time through the slag removal pipe; and meanwhile, the slag removal pipe can move according to the movement of the pipe workpiece, and the possibility that waste slag or dust is diffused in a cutting area is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting, in particular to a dust removal and slag blocking component and laser cutting equipment. Background Art

[0002] Laser processing is a processing technology that uses a high-power laser beam to cut, weld, surface treat, punch and micro-process workpieces. Due to its advantages such as small light spot, concentrated energy, small heat-affected zone and no contact with the workpiece, laser processing as an advanced manufacturing technology has been widely used in the fields of automobiles, electronics, electrical appliances, aviation, metallurgy, machinery manufacturing, etc.

[0003] Since laser processing has many advantages, in order to meet customer needs, several generations of laser cutting machines have been continuously developed, such as the first-generation laser cutting machine product (application number: 202210944297.1; name: a tube feeding mechanism and laser cutting machine) and the second-generation laser cutting machine product (application number: 202310123407.2; name: an automatic feeding and cutting all-in-one machine); these two generations of laser cutting machine products can effectively cope with long tubes of different diameters, which is of great effect in realizing automatic feeding and cutting and improving processing efficiency.

[0004] Cutting machine equipment is constantly being upgraded and improved, and the industry's requirements for the operating environment are becoming more and more standardized. It is well known that when laser cutting equipment cuts pipe workpieces, it is inevitable that metal waste slag or other granular dust will be generated. Because of their small size and lightness, such waste slag or dust can spread to the surrounding area at will. The current common practice is to separate the cutting area, such as designing a dust cover to seal the cutting area separately to avoid the spread of waste slag or dust.

[0005] However, the cutting area is full of such waste slag or dust. If it adheres to the surface of the pipe workpiece, it will affect the accuracy of the cutting surface; moreover, if it adheres to the laser cutting head, the cutting accuracy will be affected more seriously. Therefore, how to efficiently deal with the waste slag generated during laser cutting is a problem that needs to be solved at present. Utility Model Content

[0006] In response to the technical problem in the prior art of how to efficiently deal with the waste slag generated during laser cutting, the utility model designs a dust removal and slag blocking component in the laser cutting equipment. The component can absorb the waste slag or dust generated during laser cutting in real time, making the entire cutting area environment bright and clean, and completely improving the situation where the traditional cutting area is full of waste slag or dust.

[0007] Specifically, the detailed technical solution proposed by the utility model is as follows:

[0008] A dust removal and slag blocking assembly comprises a slag removal pipe and a power drive structure; the slag removal pipe has a first end and a second end that are interconnected; the second end is connected to a negative pressure device so that negative pressure suction is formed in the first end and in the slag removal pipe; the slag removal pipe is fixed on the power drive structure, and the power drive structure drives the slag removal pipe to reciprocate in a straight line between a dust suction position and a material drop position.

[0009] Furthermore, a slag suction notch is provided on the tube wall of the slag removal tube, and the slag suction notch is close to the first end.

[0010] Furthermore, the edge of the slag suction notch breaks the end surface of the first end portion.

[0011] Furthermore, the first end portion is configured as a truncated cone structure, and the distance between the edge of the slag suction notch and the end surface of the first end portion is L, wherein 0<L≤1cm.

[0012] Furthermore, there are a plurality of slag suction notches, and the plurality of slag suction notches are evenly arranged in an array around the axis of the slag removal pipe.

[0013] Furthermore, the dust removal and slag blocking assembly further comprises a guide seat, a guide hole is provided in the guide seat, and the slag removal pipe moves along the direction of the guide hole;

[0014] When the slag removal pipe is located at the material dropping position, the first end portion is hidden in the guide hole.

[0015] Furthermore, the dust removal and slag blocking assembly further comprises a base plate, and the power drive structure is fixed on the base plate via a mounting seat;

[0016] The slag removal pipe is fixed to the output end of the power drive structure;

[0017] The guide seat is fixed on the mounting seat or on the base plate.

[0018] Furthermore, the substrate is provided with a U-shaped blanking notch, and the blanking notch is arranged just below the dust suction position and the blanking position of the slag removal pipe.

[0019] A laser cutting device, comprising a frame, a hollow rotating motor, a laser cutting assembly and the dust removal and slag blocking assembly as described above; the hollow rotating motor, the laser cutting assembly and the dust removal and slag blocking assembly are fixed on the frame in sequence from left to right;

[0020] The hollow rotary motor is configured to drive the pipe workpiece to rotate axially and move along the Y-axis direction;

[0021] The laser cutting assembly is configured to perform laser cutting processing on a tube workpiece;

[0022] The dust removal and slag blocking assembly is configured to absorb waste slag generated during laser cutting of a pipe workpiece.

[0023] Furthermore, a material receiving funnel is also provided in the frame, and the material receiving funnel is arranged directly below the base plate and communicated with the material blanking notch; buffer cotton is pasted in the material receiving funnel, and the buffer cotton is directly opposite to the material blanking notch.

[0024] The beneficial effects achieved by adopting this technical solution are:

[0025] In this solution, a special dust removal and slag blocking component is designed to address the current pain points. The slag removal pipe proposed in the component is designed to be a hollow structure, and the slag removal pipe is connected to an external negative pressure device. When the pipe workpiece is being cut, the waste slag can be absorbed and discharged out of the cutting area in real time through the slag removal pipe; at the same time, the slag removal pipe can also move according to the movement of the pipe workpiece, achieving zero-distance waste slag absorption, effectively avoiding the possibility of waste slag or dust spreading in the cutting area. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A three-dimensional diagram of the laser cutting equipment.

[0027] Figure 2 This is the main plan view of the laser cutting equipment.

[0028] Figure 3 A three-dimensional diagram of the dust removal and slag blocking assembly.

[0029] Figure 4 This is a three-dimensional diagram of the slag removal pipe.

[0030] Figure 5 This is the main plan view of the slag removal pipe.

[0031] Among them: 100 hollow rotating motor, 200 laser cutting assembly, 210 laser head, 220 driving module, 300 dust removal and slag blocking assembly, 310 slag removal pipe, 311 first end, 312 second end, 313 slag suction gap, 320 power drive structure, 321 mounting seat, 330 guide seat, 331 guide hole, 332 positioning plate, 340 base plate, 341 blanking gap, 400 frame, 410 material receiving funnel. DETAILED DESCRIPTION

[0032] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0033] The utility model provides a laser cutting device, which is used to complete the shaping and cutting operation of a tube workpiece; in the laser cutting device in this scheme, see Figure 1-Figure 2, including a pipe material workpiece feeding assembly (not shown), a hollow rotating motor 100, a laser cutting assembly 200, a dust removal and slag blocking assembly 300 and a frame 400; wherein the frame 400 serves as the installation basis for all mechanisms, and the pipe material workpiece feeding assembly, the hollow rotating motor 100, the laser cutting assembly 200 and the dust removal and slag blocking assembly 300 mentioned are fixed on the frame 400 in sequence from left to right.

[0034] Specifically: the tube material workpiece feeding assembly is used to feed the tube material, so that the tube material workpiece can be transported neatly and orderly. The hollow rotating motor 100 is configured to drive the tube material workpiece to rotate axially and move along the Y-axis direction. This is because the tube material workpiece needs to present different shapes, and it needs to be cut at different positions on the tube material during cutting, so that it is designed as a tube material with a shape or pattern. Therefore, a hollow rotating motor 100 is designed in the laser cutting equipment, which can not only feed and transport the tube material workpiece, but also rotate the tube material workpiece, so that the laser cutting assembly 200 can efficiently cut at the corresponding position of the tube material workpiece. The laser cutting assembly 200 is configured to perform laser cutting processing on the tube material workpiece; and the dust removal and slag blocking assembly 300 is configured to absorb the waste slag generated when the tube material workpiece is laser cut.

[0035] The core innovation of this solution lies in the dust removal and slag blocking component 300. By providing an improved dust removal and slag blocking component 300, waste slag generated during the cutting process can be processed by the dust removal and slag blocking component 300, thereby achieving a clean and tidy environment in the cutting area and avoiding the situation where waste slag spreads randomly and affects the cutting accuracy.

[0036] For details, see Figure 1 , Figure 3-Figure 5 The dust removal and slag blocking component 300 proposed in this solution is mainly suitable for short tube workpieces (length range is between 2-20cm). By using the dust removal and slag blocking component 300, the waste slag or dust generated in the process of shaping and cutting the short tube workpiece can be effectively removed.

[0037] The dust removal and slag blocking assembly 300 includes a slag removal pipe 310 and a power drive structure 320; wherein the slag removal pipe 310 is the key to achieving waste slag removal, and the slag removal pipe 310 has a first end 311 and a second end 312 that are interconnected. It can be simply understood that if the slag removal pipe 310 is a straight pipe, then the first end 311 and the second end 312 are respectively the two ends of the straight pipe, and the straight pipe is still interconnected; if the slag removal pipe 310 is a three-way or multi-way pipe, the first end 311 and the second end 312 are the two ends of any two interconnected ones.

[0038] For the sake of distinction, the end of the slag removal pipe 310 facing the pipe workpiece is defined as the first end 311, and the end away from the pipe workpiece is defined as the second end 312; the first end 311 is close to the pipe workpiece and can more effectively absorb the waste slag generated during the cutting process. Although the second end 312 is away from the pipe workpiece, the second end 312 is connected to a negative pressure device (not shown) through an air pipe. After the negative pressure device is started, negative pressure suction is formed in the first end 311 and the slag removal pipe 310; in this way, the suction in the first end 311 is more stable, and the waste slag generated during the cutting process can be more efficiently absorbed.

[0039] The function of the power drive structure 320 is to drive the slag removal pipe 310 so that the slag removal pipe 310 can move with the pipe material workpiece. If the slag removal pipe 310 is fixed at a certain position in the cutting area, although it can also absorb waste slag and achieve a certain slag removal effect, the entire cutting area is still full of waste slag, and the effect of cleanly treating the cutting area cannot be achieved. Therefore, the power drive structure 320 is designed here to drive the slag removal pipe 310, which can effectively avoid the spread of waste slag, that is, the waste slag will be sucked away by the slag removal pipe 310 when it is generated; specifically, the slag removal pipe 310 is fixed on the power drive structure 320, and the power drive structure 320 drives the slag removal pipe 310 to reciprocate in a straight line between the dust suction position and the material drop position.

[0040] For the convenience of description, the two positions where the slag removal pipe 310 moves back and forth are defined as a dust suction position and a material drop position.

[0041] The dust suction position refers to the extended position of the slag removal pipe 310. At this time, the slag removal pipe 310 extends into the pipe material workpiece until the position where the pipe material workpiece is to be cut. At this time, the first end 311 of the slag removal pipe 310 is just located inside the pipe material workpiece and just corresponds to the position that needs to be cut; in this way, the waste slag generated during the cutting process can be efficiently sucked away by the first end 311.

[0042] The material drop position refers to the retracted position of the slag removal pipe 310 , at which time the slag removal pipe 310 is completely separated from the pipe workpiece, and the cut and formed pipe workpiece has also been successfully dropped.

[0043] In this solution, in order to improve the suction effect of the slag removal pipe 310 and to completely absorb the waste slag generated during the cutting process as much as possible, a slag suction notch 313 is provided on the tube wall of the slag removal pipe 310. The slag suction notch 313 here can be a round hole penetrating the tube wall of the slag removal pipe 310, or a waist-shaped hole, a polygonal hole, etc. penetrating the tube wall of the slag removal pipe 310; by providing the slag suction notch 313, the slag removal pipe 310 can absorb the waste slag in multiple directions, and during the cutting process, suction is generated not only at the first end 311, but also at the slag suction notch 313 on the tube wall, so that the generated waste slag is efficiently and comprehensively absorbed.

[0044] The layout position of the slag suction notch 313 can be distributed throughout the entire slag removal tube 310, which can be simply understood as the tube wall of the slag removal tube 310 is covered with slag suction notches 313; it can also be distributed only in a certain area; for example, in this solution, in order to improve efficiency and reduce processing steps, the slag suction notch 313 is designed to be located near the first end 311, because only the first end 311 is around the cutting position during the cutting process. The slag suction notch 313 is arranged around the cutting position, which can effectively improve the slag removal suction efficiency.

[0045] Optionally, the edge of the slag suction notch 313 can break the end surface of the first end 311; the slag suction notch 313 here is a slag suction notch 313 close to the first end 311, and the end surface of the first end 311 is completely broken in this way, so that the suction area is larger.

[0046] In the specific embodiment of this scheme, the slag suction notch 313 does not need to break the end surface of the first end 311, so that the first end 311 has a stronger connection strength and a more stable structure, which is convenient for insertion into the pipe workpiece during the cutting process.

[0047] In order to facilitate the first end 311 of the slag removal pipe 310 to be accurately connected to the pipe workpiece every time during the extension and retraction process, the first end 311 is configured as a frustum structure, that is, a chamfer is set on the first end 311 to finally form a frustum structure; this can ensure that it is accurately inserted into the pipe workpiece every time.

[0048] Optionally, the distance between the edge of the residue suction notch 313 and the end surface of the first end 311 is L, where 0<L≤1cm. That is, the residue suction notch 313 is as close to the first end 311 as possible, but does not break the end surface of the first end 311.

[0049] Optionally, there are multiple slag suction notches 313, and the multiple slag suction notches 313 are evenly arranged in an array around the axis of the slag removal pipe 310. In the specific implementation of this solution, the provided slag suction notches 313 are waist-shaped holes, and the number of provided notches is 4, and the 4 waist-shaped slag suction notches 313 are close to the first end 311 and are evenly arranged in an annular array around the axis of the slag removal pipe 310.

[0050] In this solution, the dust removal and slag blocking assembly 300 also includes a guide seat 330, in which a guide hole 331 is provided, and the slag removal pipe 310 moves along the direction of the guide hole 331; and when the slag removal pipe 310 is located at the blanking position, the first end 311 is hidden in the guide hole 331.

[0051] That is, in order to improve the stability of the reciprocating motion of the slag removal pipe 310, a special guide seat 330 is designed here, and the axial direction of the guide hole 331 in the guide seat 330 is the same as the axial direction of the slag removal pipe 310; during installation, the entire slag removal pipe 310 moves in the guide hole 331.

[0052] In a specific embodiment of the present scheme, the dust removal and slag blocking assembly 300 also includes a substrate 340, and the power drive structure 320 is fixed on the substrate through a mounting seat 321; the slag removal pipe 310 is fixed to the output end of the power drive structure 320; the guide seat 330 mentioned above is fixed on the mounting seat 321 or on the substrate 340.

[0053] In this solution, the guide seat 330 is fixed to the side of the mounting seat 321 through the positioning plate 332. At the same time, a plurality of mounting holes are provided on the positioning plate 332. The guide seat 330 can be positioned and installed with different mounting holes according to different requirements.

[0054] In this solution, the base plate 340 has a U-shaped blanking notch 341, which is arranged just below the dust suction position and blanking position of the slag removal pipe. The blanking notch 341 is used for blanking the formed pipe workpiece, which is convenient for later collection.

[0055] In order to facilitate a deeper understanding of this solution, the principle of this laser cutting equipment is introduced below with a specific operation process.

[0056] S1: After the equipment is started, the pipe workpiece feeding assembly, the hollow rotating motor 100, the laser cutting assembly 200, and the dust removal and slag blocking assembly 300 are all in a reset state. It should be noted that when the slag removal pipe 310 is in the blanking position, that is, when the first end 311 is hidden in the guide hole 331, it is the initial position of the slag removal pipe 310.

[0057] S2: The tube workpiece loading assembly loads the uncut tube workpiece, so that one end of the tube workpiece enters the hollow rotating motor 100 and is clamped and controlled by the hollow rotating motor 100. The hollow rotating motor 100 controls the tube workpiece to move and extend along the Y-axis direction until the preset length of the tube workpiece is within the cutting area.

[0058] S3: The power driving structure 320 drives the slag removal pipe 310 to extend to the dust suction position. At this time, the first end 311 of the slag removal pipe 310 is just inside the pipe workpiece and is located at the position where the pipe workpiece needs to be cut.

[0059] That is, after the slag removal pipe 310 does not extend from the blanking, the first end 311 will gradually enter the pipe material workpiece until it extends to the dust suction position and stops; placing the first end 311 of the slag removal pipe 310 inside the pipe material workpiece before cutting has two effects: first, the slag removal pipe 310 can support the pipe material workpiece during the cutting process and improve the stability of the pipe material workpiece during the cutting process. Second, the first end 311 is sent to the cutting position to effectively absorb the waste slag generated during the cutting process.

[0060] S4: The laser cutting assembly 200 starts to start the cutting operation, and the negative pressure device connected to the second end 312 is also started synchronously. At the same time, the hollow rotating motor 100 also starts to control the pipe workpiece to rotate according to a preset program, so that the pipe workpiece can be cut and rotated at the same time, thereby realizing shaping cutting, and the waste slag generated is sucked away by the slag removal pipe 310 in time.

[0061] In order to improve the flexibility of the laser cutting assembly 200, the laser cutting assembly 200 of the present solution includes a laser head 210 and a driving module 220; the driving module 220 here is configured to drive the laser head 210 to move in the X-axis, Y-axis and Z-axis directions.

[0062] It can be understood that the driving module 220 can drive the laser head 210 to move in three axes, and perform shaping cutting on the pipe material according to a preset program and in cooperation with the hollow rotary motor 100 to meet different industrial needs.

[0063] S5: After the cutting is completed, the formed pipe workpiece is sleeved on the slag removal pipe 310; the power driving structure 320 drives the slag removal pipe 310 to retract, and the formed pipe workpiece is blocked and restricted by the guide seat 330, and is discharged from the slag removal pipe 310 to the blanking gap 341 until the slag removal pipe 310 retracts into the guide hole 331 (i.e., the blanking position), and a cycle is completed.

[0064] It should be noted that the power drive structure 320 here specifically includes a drive cylinder and an adapter, the adapter is fixed to the output end of the drive cylinder, and the slag removal pipe 310 is fixed by the adapter. Of course, in other embodiments, the power source of the power drive structure 320 can also be a power element such as an electric cylinder, a linear module, etc.

[0065] S6: loop the steps of S1-S5 to complete the forming and cutting of the next pipe workpiece.

[0066] In this solution, the cut and formed pipe workpieces need to be collected. Specifically, a receiving funnel 410 is provided in the frame 400. The receiving funnel 410 is provided directly below the base plate and communicates with the blanking notch 341. Meanwhile, a cushioning cotton is pasted in the receiving funnel 410, and the cushioning cotton faces the blanking notch 341. When the formed pipe workpiece falls, it will directly hit the cushioning cotton to avoid damage or wear, thereby ensuring the quality of the pipe workpiece.

[0067] This solution designs a special dust removal and slag blocking component to target the current pain points. The slag removal pipe proposed in the component is designed as a hollow structure, and the slag removal pipe is connected to an external negative pressure device. When the pipe workpiece is being cut, the waste slag can be absorbed and discharged out of the cutting area in real time through the slag removal pipe. At the same time, the slag removal pipe can also move according to the movement of the pipe workpiece, achieving zero-distance waste slag absorption and effectively avoiding the possibility of waste slag or dust spreading in the cutting area.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dust removal and slag blocking assembly, characterized in that: The invention comprises a slag removal pipe (310) and a power drive structure (320); the slag removal pipe (310) has a first end (311) and a second end (312) which are connected to each other; the second end (312) is connected to a negative pressure device, so that negative pressure suction is formed in the first end (311) and in the slag removal pipe (310); The slag removal pipe (310) is fixed on the power drive structure (320), and the power drive structure (320) drives the slag removal pipe (310) to reciprocate linearly between a dust suction position and a material discharge position; A slag suction notch (313) is provided on the wall of the slag removal pipe (310), and the slag suction notch (313) is close to the first end (311); The edge of the residue suction notch (313) breaks the end surface of the first end portion (311); The first end portion (311) is configured as a truncated cone structure, and the distance between the edge of the residue suction notch (313) and the end surface of the first end portion (311) is L, wherein 0<L≤1cm.

2. A dust removal and slag blocking assembly according to claim 1, characterized in that: There are a plurality of slag suction notches (313), and the plurality of slag suction notches (313) are evenly arranged in an array around the axis of the slag removal pipe (310).

3. A dust removal and slag blocking assembly according to claim 2, characterized in that: The dust removal and slag blocking assembly further comprises a guide seat (330), a guide hole (331) is provided in the guide seat (330), and the slag removal pipe (310) moves along the direction of the guide hole (331); When the slag removal pipe (310) is located at the material dropping position, the first end portion (311) is hidden in the guide hole (331).

4. A dust removal and slag blocking assembly according to claim 3, characterized in that: The dust removal and slag blocking assembly also includes a base plate (340), and the power drive structure (320) is fixed on the base plate (340) via a mounting seat; The slag removal pipe (310) is fixed to the output end of the power drive structure (320); The guide seat (330) is fixed on the mounting seat or on the base plate (340).

5. The dust removal and slag blocking assembly according to claim 4, characterized in that: The base plate (340) is provided with a U-shaped blanking notch (341), and the blanking notch (341) is arranged directly below the dust suction position and the blanking position of the slag removal pipe (310).

6. A laser cutting device, characterized in that: It comprises a frame (400), a hollow rotating motor (100), a laser cutting assembly (200) and a dust removal and slag blocking assembly (300) as claimed in claim 5; the hollow rotating motor (100), the laser cutting assembly (200) and the dust removal and slag blocking assembly are fixed on the frame (400) in sequence from left to right; The hollow rotary motor (100) is configured to drive the pipe workpiece to rotate axially and move along the Y-axis direction; The laser cutting assembly (200) is configured to perform laser cutting processing on a tube workpiece; The dust removal and slag blocking assembly (300) is configured to absorb waste slag generated during laser cutting of a pipe workpiece.

7. The laser cutting device according to claim 6, characterized in that: A material receiving funnel (410) is also provided in the frame (400), and the material receiving funnel (410) is provided directly below the base plate (340) and communicates with the material blanking notch (341); a cushioning cotton is pasted in the material receiving funnel (410), and the cushioning cotton faces the material blanking notch (341).

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