阅读说明：本技术 一种用于弧形配电柜柜门的切削设备 (Cutting equipment for arc-shaped power distribution cabinet door ) 是由 张震孟 于 2021-07-26 设计创作，主要内容包括：本发明公开了一种用于弧形配电柜柜门的切削设备,包括截面为开口朝上凹字形的主体架,所述主体架底壁内开设有滑动槽,所述主体架通过滑动槽滑动连接有滑块,所述滑块通过轴承贯穿转动连接有主轴,所述滑块下表面固定连接有两个固定板,两个所述固定板之间通过轴承转动连接有转轴、转动杆,所述主轴底端过盈配合有第一锥齿轮,所述第一锥齿轮啮合有第二锥齿轮,所述第二锥齿轮与转轴过盈配合,所述转轴两端均过盈配合有传动齿轮,所述转动杆两端均过盈配合有驱动齿轮。优点在于：相较于现有技术,切削精度更高、切面更平整,且可以自行锁止,使用方便,同时安全性更高,还可以对切削粉尘进行吸收、储存,大大保障了良好的加工环境。(The invention discloses cutting equipment for an arc-shaped power distribution cabinet door, which comprises a main body frame with an upward concave cross section, wherein a sliding groove is formed in the bottom wall of the main body frame, the main body frame is connected with a sliding block in a sliding mode through the sliding groove, the sliding block penetrates through a main shaft through a bearing and is rotatably connected with the lower surface of the sliding block, a rotating shaft and a rotating rod are rotatably connected between the two fixing plates through the bearing, a first bevel gear is in interference fit with the bottom end of the main shaft, the first bevel gear is meshed with a second bevel gear, the second bevel gear is in interference fit with the rotating shaft, transmission gears are in interference fit with the two ends of the rotating shaft, and driving gears are in interference fit with the two ends of the rotating rod. Has the advantages that: compared with the prior art, the cutting machine has the advantages that the cutting precision is higher, the cutting surface is smoother, the self-locking can be realized, the use is convenient, the safety is higher, the cutting dust can be absorbed and stored, and the good processing environment is greatly guaranteed.)

1. The cutting equipment for the arc-shaped power distribution cabinet door comprises a main body frame (1) with an upward-opening concave-shaped cross section, and is characterized in that a sliding groove (101) is formed in the bottom wall of the main body frame (1), the main body frame (1) is connected with a sliding block (2) through the sliding groove (101), the sliding block (2) is connected with a main shaft (201) through a bearing in a penetrating and rotating mode, two fixing plates (205) are fixedly connected to the lower surface of the sliding block (2), a rotating shaft (204) and a rotating rod (208) are connected between the two fixing plates (205) through a bearing in a rotating mode, a first bevel gear (202) is in interference fit with the bottom end of the main shaft (201), a second bevel gear (203) is meshed with the first bevel gear (202), the second bevel gear (203) is in interference fit with the rotating shaft (204), and transmission gears (206) are in interference fit with the two ends of the rotating shaft (204), the two ends of the rotating rod (208) are respectively provided with a driving gear (207) in interference fit, the transmission gears (206) are meshed with the corresponding driving gears (207), and the rotating rod (208) is fixedly connected with an expansion rod (5) in a penetrating way; the main body frame (1) is provided with a driving mechanism for driving the telescopic rod (5) to move, the driving mechanism further comprises two stepping motors (3), a threaded rod (301), driving blocks (302), a rack (303) and a main gear (304), the side wall of the main body frame (1) is fixedly connected with the two stepping motors (3), the output shafts of the two stepping motors (3) are fixedly connected with the threaded rod (301), the two threaded rods (301) are rotatably connected with the side wall of the main body frame (1) through bearings in a penetrating manner, one sections of the two threaded rods (301) between the side walls of the main body frame (1) are connected with the driving blocks (302) in a threaded manner, the two driving blocks (302) are slidably connected with the upper surface of the main body frame (1), the opposite side walls of the two driving blocks are fixedly connected with the rack (303), and the main gear (304) is in interference fit with the top end of the main shaft (201), the two racks (303) are jointly engaged with a main gear (304).

2. The cutting equipment for arc-shaped power distribution cabinet doors according to claim 1, the lower surface of the main body frame (1) is provided with a dust collection mechanism for absorbing the cutting dust, the dust collection mechanism comprises a transit box (403), a dust storage box (404), a dust discharge pipe (405), a dust inlet pipe (407), a dust collection pipe (409) and a hose (408), the lower surface of the main body frame (1) is fixedly connected with two transit boxes (403), the side walls of the opposite sides of the two transit boxes (403) are fixedly connected with dust inlet pipes (407) in a penetrating way, the bottom wall of the transit box (403) is fixedly connected with a dust exhaust pipe (405) in a penetrating way, the dust exhaust pipe (405) extends into the corresponding dust storage box (404) in a penetrating way and is fixedly connected with the same, the side wall of the telescopic rod (5) is fixedly connected with two dust suction pipes (409), and the dust suction pipes (409) are communicated with the corresponding dust inlet pipes (407) through hoses (408).

3. The cutting equipment for arc-shaped power distribution cabinet doors according to claim 2, the upper surface of the main body frame (1) is provided with a suction mechanism for generating suction force, the suction mechanism also comprises a sliding plate (4), an elastic air bag (401) and a connecting pipe (402), the main body frame (1) is connected with two sliding plates (4) in a sliding way through a sliding groove (101), elastic air bags (401) are fixedly connected between the two sliding plates (4) and the side wall of the main body frame (1), the two sliding plates (4) are respectively propped against the two sides of the driving block (302), the two side walls of the main body frame (1) are both fixedly connected with connecting pipes (402) in a penetrating way, one end of the connecting pipe (402) penetrates and extends into the corresponding elastic air bag (401), and the other end of the connecting pipe penetrates and extends into the corresponding transfer box (403) and is fixedly connected with the transfer box.

4. The cutting equipment for arc-shaped power distribution cabinet doors is characterized in that a plurality of upright posts (102) are fixedly connected to the lower surface of the transit box (403), the dust storage box (404) is fixedly connected with the upright posts (102), and the telescopic rod (5) is connected with a cutting mechanism (501).

5. The cutting apparatus for arc-shaped switch cabinet doors according to claim 1, characterized in that the size of said first bevel gear (202) is smaller than the size of said second bevel gear (203), said transmission gear (206) being in line with the size of said driving gear (207).

6. The cutting equipment for arc-shaped power distribution cabinet doors according to claim 3, wherein the pipe diameter of the connecting pipe (402) is larger than that of the dust inlet pipe (407), the pipe diameters of the hose (408), the dust inlet pipe (407) and the dust suction pipe (409) are the same, and the dust inlet pipe (407) and the dust exhaust pipe (405) are both internally provided with one-way valves.

7. The cutting apparatus for arc-shaped switch cabinet doors according to claim 3, characterized in that a sieve (406) is arranged in said transit box (403).

Technical Field

The invention relates to the technical field of cutting equipment, in particular to cutting equipment for an arc-shaped power distribution cabinet door.

Background

The switch board is one of our common electric power facility, is distribution system's final stage equipment, the switch board is control center, consequently integrated a plurality of switches in it, the circuit etc., along with the demand of different scenes to the switch board, the shape of switch board also no longer is limited to the cuboid, the switch board cabinet body of more and more arc structure also is continuous appearing, but current cutting equipment is when the cutting to arc switch board cabinet door, it is extremely inconvenient to operate, and lead to the radian change of cabinet door easily, thereby lead to the difficulty of later stage installation.

The existing invention patent, such as a chinese patent with application patent number CN201510709405.7, discloses a cutting mechanism for arc-shaped power distribution cabinet doors, which mainly comprises a support rod, a transverse rod, a slide rail, a fixed arm, a moving arm, a sliding part, etc., and the saw disc is effectively moved in an arc shape by the arrangement that a telescopic arm is hinged on the sliding part, so that the cutting is more convenient and labor-saving.

Among this technical scheme, in the cutting process, need artifical manual going to operate the saw disc and carry out the cutting of cabinet door, because manual operation can't guarantee the steady of cutting, can lead to cutting the face unevenness, and in the operation process, there is the risk of being accidentally injured by the saw disc, simultaneously, when the switching between arc shaped plate and the cutting of plane board, need fix the part of difference, complex operation at every turn.

Disclosure of Invention

The invention aims to solve the problems of unstable manual cutting, accidental injury and complex use in the prior art, and provides cutting equipment for arc-shaped power distribution cabinet doors.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a cutting equipment for arc switch board cabinet door, includes that the cross-section is the main part frame of opening character cut in bas-relief shape up, the sliding tray has been seted up in the main part frame bottom wall, the main part frame has the slider through sliding tray sliding connection, the slider runs through to rotate through the bearing and is connected with the main shaft, two fixed plates of surface fixed connection under the slider are two rotate through the bearing between the fixed plate and are connected with pivot, dwang, main shaft bottom interference fit has first bevel gear, first bevel gear meshing has second bevel gear, second bevel gear and pivot interference fit, the equal interference fit in pivot both ends has drive gear, the equal interference fit in dwang both ends has drive gear, drive gear meshes with the drive gear that corresponds, the dwang runs through fixedly connected with telescopic link.

Further, be provided with the driving machine that is used for driving the telescopic link motion on the main part frame, actuating mechanism still includes step motor, threaded rod, drive block, rack, master gear, two step motor of main part frame lateral wall fixedly connected with, two the equal fixedly connected with threaded rod of step motor's output shaft, two the threaded rod all runs through rotation through bearing and main part frame lateral wall and is connected, two one section equal threaded connection that the threaded rod is located between the main part frame lateral wall has the drive block, two the drive block all with main part frame upper surface sliding connection, two the equal fixedly connected with rack of lateral wall that the drive block is relative, master gear and main shaft top interference fit, two the rack meshes with the master gear jointly.

Further, main part frame lower surface is provided with the dust absorption mechanism who is used for absorbing the smear metal dust, dust absorption mechanism includes transit box, storage dust box, dust exhaust pipe, dust inlet pipe, dust absorption pipe, hose, two in the fixed surface of main part frame two transit boxes of fixed connection, two the lateral wall of the relative one side of transit box all runs through fixedly connected with dust inlet pipe, transit box diapire runs through fixedly connected with dust exhaust pipe, dust exhaust pipe run through extend to the storage dust box that corresponds in and rather than fixed connection, two dust absorption pipes of telescopic link lateral wall fixedly connected with, the dust absorption pipe pass through the hose and correspond dust inlet pipe intercommunication.

Further, the upper surface of the main body frame is provided with a suction mechanism for generating suction force, the suction mechanism further comprises sliding plates, elastic air bags and connecting pipes, the main body frame is connected with the two sliding plates through sliding grooves in a sliding mode, the two sliding plates and the side walls of the main body frame are fixedly connected with the elastic air bags respectively, the two sliding plates are abutted against the two sides of the driving block respectively, the two side walls of the main body frame penetrate through the fixedly connected connecting pipes, one ends of the connecting pipes penetrate through the corresponding elastic air bags, and the other ends of the connecting pipes penetrate through the corresponding transfer boxes and are fixedly connected with the transfer boxes.

Further, transfer box lower surface fixed connection has a plurality of stands, dust storage box and stand fixed connection, the telescopic link is connected with cutting mechanism.

Further, the size of the first bevel gear is smaller than that of the second bevel gear, and the transmission gear is consistent with the size of the driving gear.

Further, the pipe diameter of connecting pipe is greater than the pipe diameter of entering dirt pipe, the pipe diameter of hose, entering dirt pipe, dust absorption pipe is unanimous, it all is provided with the check valve in dirt pipe and the dust exhaust pipe to enter.

Further, a filter screen is arranged in the transfer box.

The invention has the following advantages:

1. the arc cutting and the plane cutting are controlled by the two stepping motors, so that compared with the manual cutting in the prior art, the cutting process is more stable, the cutting surface is smoother, and meanwhile, the stepping motors are used for driving, so that the cutting precision is higher compared with the manual cutting, and the follow-up installation is facilitated;

2. in the cutting process, a worker only needs to fix the raw material to be cut and then operates the stepping motor to finish cutting without approaching a cutting machine mechanism, so that the risk of accidental injury of the cutting mechanism is avoided, and the safety is greatly improved;

3. when arc cutting is carried out, the horizontal movement of the sliding block is automatically locked, and meanwhile, when plane cutting is carried out, the arc movement of the telescopic rod is automatically locked, so that the situation that different parts need to be fixed when cutting modes are switched in the prior art is avoided, and the cutting tool is more convenient to use;

4. in the cutting process, the elastic air bag is extruded and stretched through the movement of the sliding plate to generate suction force, so that metal dust generated in the cutting process is absorbed, the flying of the dust is avoided, the pollution to the environment of a processing site is avoided, and the health of processing workers is guaranteed;

5. the metal dust generated by cutting is collected through the dust storage box, and can be recycled after collection, so that the waste of resources is avoided.

Drawings

Fig. 1 is an appearance schematic diagram of a cutting device for an arc-shaped power distribution cabinet door provided by the invention;

FIG. 2 is a cross-sectional view of a cutting apparatus for arc-shaped cabinet doors of power distribution cabinets according to the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is an enlarged view of FIG. 2 at B;

fig. 5 is another sectional view of the cutting device for the arc-shaped cabinet door of the power distribution cabinet according to the invention;

FIG. 6 is an enlarged view at C of FIG. 5;

fig. 7 is a top view of a cutting apparatus for arc-shaped cabinet doors of power distribution cabinets according to the present invention;

fig. 8 is a schematic structural diagram of a telescopic rod in a cutting device for arc-shaped power distribution cabinet doors, which is provided by the invention.

Detailed Description

Referring to fig. 1-8, a cutting equipment for arc-shaped power distribution cabinet door, includes main body frame 1 with the cross-section in the shape of a Chinese character 'ao' with an upward opening, a sliding groove 101 is provided in the bottom wall of main body frame 1, and main body frame 1 is connected with a sliding block 2 through sliding groove 101. As shown in fig. 5, the section of the slider 2 is i-shaped, the slider 2 is clamped on the main body frame 1 through the sliding groove 101, the sliding connection between the two is lubricated by grease, the grease can adsorb dust to a certain extent, so as to ensure the lubricity between the two, the slider 2 is rotatably connected with the main shaft 201 through a bearing, the lower surface of the slider 2 is fixedly connected with two fixing plates 205, the two fixing plates 205 are rotatably connected with a rotating shaft 204 and a rotating rod 208 through a bearing, the bottom end of the main shaft 201 is in interference fit with a first bevel gear 202, the first bevel gear 202 is engaged with a second bevel gear 203, the second bevel gear 203 is in interference fit with the rotating shaft 204, the two ends of the rotating shaft 204 are in interference fit with a transmission gear 206, the two ends of the rotating rod 208 are in interference fit with a driving gear 207, the transmission gear 206 is engaged with the corresponding driving gear 207, the rotating rod 208 is fixedly connected with the telescopic rod 5, and the telescopic rod 5 can adjust the extension length, the telescopic rod 5 is a prior art, which is not described herein, and when the two driving blocks 302 are driven to move in the same direction, the sliding block 2 can be driven to move in the same direction through the gear, so that the telescopic rod 5 can move horizontally to complete plane cutting, during the plane cutting process, due to the locking of the main gear 304 by the two racks 303, the main shaft 201 can not rotate, i.e. the arc-shaped motion of the telescopic rod 5 is locked, otherwise, when the two driving blocks 302 are driven to move in opposite directions, the main gear 304 can be driven to rotate by the racks 303, so that the telescopic rod 5 can move in an arc shape through the engagement of the bevel gear and the gear, thereby completing the arc-shaped cutting, during the arc-shaped cutting process, the two racks 303 can lock the horizontal reverse motion of the sliding block 2, thereby comparing with the prior art, when switching cutting mode, carry out the locking to the relative motion voluntarily, do not need extra operation, it is more convenient to use, simultaneously, in the cutting process, only need the operating motor can, do not need operating personnel to be close to cutting mechanism 501, avoid the accidental injury, it is safer.

The main body frame 1 is provided with a driving machine for driving the telescopic rod 5 to move, the driving mechanism further comprises a stepping motor 3, a threaded rod 301, a driving block 302, a rack 303 and a main gear 304, the side wall of the main body frame 1 is fixedly connected with two stepping motors 3, the stepping motors 3 can accurately control the number of turns of rotation, so that the cutting amount can be more accurately controlled by adopting the stepping motors 3, the cutting precision is ensured, and the subsequent installation is more facilitated, the threaded rods 301 are fixedly connected to output shafts of the two stepping motors 3, the two threaded rods 301 are respectively connected with the side wall of the main body frame 1 in a penetrating and rotating manner through bearings, the thread lead angle of the threaded rod 301 is smaller than the equivalent friction angle of a thread pair consisting of the threaded rod 301 and the driving block 302, thereby realizing self-locking of threaded connection, avoiding the shaking of the threaded connection part, causing the reduction of the cutting precision and the generation of unnecessary noise, the two threaded rods 301 are located between the side walls of the main body frame 1, a section of each threaded rod 301 is in threaded connection with a driving block 302, the two driving blocks 302 are in sliding connection with the upper surface of the main body frame 1, as shown in fig. 5, each driving block 302 is a cuboid, the lower surface of each driving block 302 is in sliding connection with the upper surface of the main body frame 1, therefore, the driving blocks 302 can only move along the direction of the threaded rods 301 along with the rotation of the threaded rods 301 and cannot rotate along with the threaded rods 301, the side walls, opposite to the two driving blocks, are fixedly connected with racks 303, the main gear 304 is in interference fit with the top end of the main shaft 201, the two racks 303 are meshed with the main gear 304 together, as shown in fig. 7, the initial position of the main gear 304 is located at the center of the racks 303, and the equipment can be controlled to perform plane cutting and arc cutting by controlling the forward and reverse rotation of the two stepping motors 3.

The lower surface of the main body frame 1 is provided with a dust collection mechanism for absorbing cutting dust, the dust collection mechanism comprises a transit box 403, a dust storage box 404, a dust exhaust pipe 405, a dust inlet pipe 407, a dust exhaust pipe 409 and a hose 408, the lower surface of the main body frame 1 is fixedly connected with two transit boxes 403, the side walls of the opposite sides of the two transit boxes 403 are fixedly connected with the dust inlet pipe 407 in a penetrating manner, the bottom wall of the transit box 403 is fixedly connected with the dust exhaust pipe 405 in a penetrating manner, the dust exhaust pipe 405 extends into the corresponding dust storage box 404 in a penetrating manner and is fixedly connected with the corresponding dust storage box, the side wall of the telescopic rod 5 is fixedly connected with two dust exhaust pipes 409, the dust exhaust pipes 409 are communicated with the corresponding dust inlet pipes 407 through the hose 408, as shown in fig. 8, the two dust exhaust pipes 409 face a saw disc of the cutting mechanism 501, as shown in fig. 4, the side wall of the dust storage box 404 is provided with an object taking door for collecting metal dust in the dust storage box 404, a filter screen 406 is arranged in the transit box 403, a screen 406 is provided between the connection pipe 402 and the dust exhaust pipe 405, which prevents dust from entering the inside of the elastic bag 401 through the connection pipe 402.

The pipe diameter of the connecting pipe 402 is larger than the pipe diameter of the dust inlet pipe 407, the pipe diameter of the connecting pipe 402 should be 3-5 times of the pipe diameter of the dust inlet pipe 407, and since the sectional area of the elastic airbag 401 is larger than the sectional area of the connecting pipe 402, when the elastic airbag 401 deforms and sucks, the air flow velocity in the connecting pipe 402 should be larger than the air flow velocity generated by the deformation of the elastic airbag 401, and the pipe diameter of the connecting pipe 402 is larger than the pipe diameter of the dust inlet pipe 407, so the air flow velocity in the dust inlet pipe 407 is larger than the air flow velocity in the connecting pipe 402, the pipe diameters of the hose 408, the dust inlet pipe 407 and the dust suction pipe 409 are the same, so that a larger suction force can be generated by two-stage air flow acceleration at the dust suction pipe 409, metal dust generated at a cutting position can be better absorbed, one-way valves are arranged in the dust inlet pipe 407 and the dust exhaust pipe 405, and the one-way valve in the dust inlet pipe 407 only allows air to enter the transfer box 403 from the hose 408, the check valve in the dust exhaust pipe 405 only allows air to enter the dust storage box 404 from the transfer box 403, so that in the suction process, air is sucked into the transfer box 403 through the dust exhaust pipe 409 and the hose 408, and during exhaust, dust is discharged into the dust storage box 404 through the dust exhaust pipe 405 to be collected, so that subsequent cyclic utilization is facilitated, and resource waste is avoided.

The upper surface of the main body frame 1 is provided with a suction mechanism for generating suction force, the suction mechanism further comprises a sliding plate 4, an elastic air bag 401 and a connecting pipe 402, the main body frame 1 is connected with two sliding plates 4 through a sliding groove 101 in a sliding manner, as shown in fig. 3, the sliding plates 4 are provided with two through holes, two threaded rods 301 penetrate through the sliding plates 4 through the through holes, the elastic air bags 401 are fixedly connected between the two sliding plates 4 and the side walls of the main body frame 1, as shown in fig. 1, the elastic air bags 401 are provided with certain springs, certain air can be stored in the elastic air bags 401, the elastic air bags are in a compressed state when in an initial state shown in fig. 1, therefore, under the action of elastic force, the elastic air bags can move along with the movement of the driving block 302, so as to deform and discharge the air or suck the air, the two sliding plates 4 respectively abut against the two sides of the driving block 302, the two side walls of the main body frame 1 are fixedly connected with the connecting pipe 402 through, one end of the connecting pipe 402 penetrates and extends into the corresponding elastic air bags 401, the other end penetrates and extends into the corresponding transfer box 403 and is fixedly connected with the transfer box, as shown in fig. 4, the connecting pipe 402 is a U-shaped pipe, the sectional area of which is smaller than the area of the elastic airbag 401, so that the speed of the air flow in the connecting pipe 402 is greater than the speed of the air flow generated by the elastic airbag 401, and a first-stage acceleration is formed.

Transfer box 403 lower surface fixed connection has a plurality of stands 102, and the stand 102 lower surface is provided with the slipmat, guarantees the stability of equipment operation, and dust storage box 404 and stand 102 fixed connection, telescopic link 5 are connected with cutting mechanism 501, and cutting mechanism 501 comprises motor, V-belt, band pulley, saw disc, for prior art, does not do the repeated description here, and it sets up on the removal arm of telescopic link 5.

The size of the first bevel gear 202 is smaller than that of the second bevel gear 203, the first bevel gear 202 with small size drives the second bevel gear 203 with large size to move, so that the second bevel gear 203 decelerates and rotates, the stability of the device is improved, the rotating speed of the device is prevented from being too fast, and the transmission gear 206 is consistent with the driving gear 207 in size.

In the invention, when the arc surface is required to be cut, the length of the telescopic rod 5 is adjusted according to the radius of the arc surface to be cut, after the adjustment is completed, the two stepping motors 4 are started to rotate reversely, so that the two driving blocks 302 move in opposite directions, at the moment, the two driving blocks 302 move to compress the two elastic air bags 401, so that the elastic air bags 401 discharge the internal air, so that the dust sucked in the transit box 403 is discharged into the dust storage box 404 through the dust discharge pipe 405, the main gear 304 is driven to rotate by the movement of the driving blocks 302 through the rack 303 on the driving blocks 302, the main shaft 201 in interference fit with the main gear 304 is rotated, so that the first bevel gear 202 in interference fit with the main shaft 201 is rotated, the first bevel gear 202 drives the second bevel gear 203 engaged with the first bevel gear to rotate, the second bevel gear 203 drives the rotating shaft 204 in interference fit with the second bevel gear 203 to rotate, and the transmission gear 206 in interference fit with the rotating shaft 204 is rotated, the driving gear 207 which is meshed with the driving gear is driven to rotate, so that the driving gear 207 drives the rotating rod 208 to rotate, the telescopic rod 5 is driven to rotate by a certain angle through the rotation of the rotating rod 208, the stepping motor 4 is closed at the moment, the two driving blocks 302 are staggered at the moment and are not aligned to each other, then the material to be cut is fixed, and after the fixation is finished, the stepping motor 4 is opened to rotate in the direction opposite to the previous direction, so that the two driving blocks 302 are aligned to each other gradually, and the telescopic rod 5 drives the cutting mechanism 501 to do arc-shaped motion through the meshing between the bevel gear and the gear so as to cut the material;

meanwhile, in the cutting process, along with the continuous movement of the two driving blocks 302, the two elastic air bags 401 move towards the driving blocks 302 under the action of elastic force, so that the volumes of the two elastic air bags 401 are increased, air is sucked into the elastic air bags 401 through the connecting pipe 402, and after the air flow of the sucked air is accelerated by the second stage, a larger suction force is generated at the position of the dust suction pipe 409, so that metal dust generated in the cutting process is sucked into the transfer box 403 through the dust suction pipe 409, the hose 408 and the dust inlet pipe 407, and the dust flying during the cutting process is avoided;

when planar cutting is needed, firstly, a material to be cut is fixed, then the stepping motors 4 are started, the two stepping motors 4 rotate in the same reverse direction, so that the two driving blocks 3 move in the same direction, the main gear 304 is driven to move together through the meshing of the rack 303 and the main gear 304, the sliding block 2 is driven to move together, and the sliding block 2 drives the telescopic rod 5 and the cutting mechanism 501 to move in the planar direction, so that the planar cutting is completed;

when the surface is cut, the elastic air bag 401 on one side is compressed, so that air flow is generated, dust in the transit box 403 enters the dust storage box 404, the elastic air bag 401 on the other side is stretched, so that suction force is generated at the position of the dust suction pipe 409, the cut dust is absorbed and absorbed into the transit box 403, and the flying of the cut dust is avoided;

after the plane or arc cutting is finished, the driving block 302 drives the sliding block 2 to reset by controlling the stepping motor 4, so that the sliding block moves to an initial position, and the dust in the dust storage box 404 is collected periodically.