CN114799335A

CN114799335A - Aluminium alloy positioner is tailor to positioning accuracy is high

Info

Publication number: CN114799335A
Application number: CN202210595398.2A
Authority: CN
Inventors: 王珊珊; 王丽丽; 王伟光
Original assignee: Nanning Chuan Chuang Technology Service Co ltd
Current assignee: Nanning Chuan Chuang Technology Service Co ltd
Priority date: 2022-05-29
Filing date: 2022-05-29
Publication date: 2022-07-29

Abstract

The invention provides an aluminum profile cutting positioning device with high positioning accuracy, and relates to the technical field of aluminum profiles. This positioner is tailor to aluminium alloy that positioning accuracy is high, comprising a base plate, bottom plate rear side top is provided with first conveyer belt, first conveyer belt front side is provided with positioning mechanism, first electric putter rear side is provided with height measurement mechanism, the positioning mechanism front side is provided with length measurement mechanism, be provided with cutting mechanism between first conveyer belt and the mounting bracket, the air pump rear side is provided with the controller, the positioning mechanism front side is provided with the second conveyer belt. The positioning mechanism adjusts the posture according to the shape of the aluminum profile, fixes the aluminum profile, moves the clamping plates corresponding to the shape of the aluminum profile to the two sides of the aluminum profile, adjusts the airflow channel, ensures that the air channels on the two sides of the aluminum profile are symmetrical, ensures that the stress of each piston head is balanced, improves the cutting precision, and ensures that the cutting positioning device has good adaptability to the shape and the size of the aluminum profile.

Description

Aluminium alloy positioner is tailor to positioning accuracy is high

Technical Field

The invention relates to the technical field of aluminum profiles, in particular to an aluminum profile cutting and positioning device with high positioning accuracy.

Background

The aluminum profile is an aluminum alloy profile with excellent machinability, the cutting of the aluminum profile belongs to deep machining service of the aluminum profile, and the aluminum profile needs to be positioned with high precision according to the length requirement in the process of producing the customized aluminum profile, so that the cutting effect of the aluminum profile is ensured.

Positioner is tailor to aluminium alloy can fix a position and tailor the aluminium alloy, and current aluminium alloy is tailor positioner and is difficult to carry out the adaptability to the cross section for square or circular shape aluminium alloy and fixes, and positioner also has not enough to aluminium alloy actual dimension's adaptability, constitutes negative effects to the accuracy of cutting easily.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the aluminum profile cutting and positioning device with high positioning precision, and solves the problem that the cutting and positioning device has insufficient adaptability to the shape and size of an aluminum profile.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the aluminum profile cutting and positioning device with high positioning accuracy comprises a bottom plate, wherein a first conveying belt is arranged at the top of the rear side of the bottom plate, a positioning mechanism is arranged at the front side of the first conveying belt, the positioning mechanism comprises a first top plate, a mounting frame and an annular pipe, a first electric push rod is fixedly connected to the bottom of the front side of the first top plate, a pressing plate is fixedly connected to the output end of the first electric push rod, a first elastic layer is arranged at the bottom end of the pressing plate, a three-way valve is fixedly connected to the left end of the mounting frame, the rear end of the three-way valve is communicated with an air pump, the front end of the three-way valve is communicated with a negative pressure pump, four corners of the bottom of the mounting frame are all in threaded connection with lead screws, belt wheels are fixedly connected to the outer sides of the middles of the lead screws, adjacent belt wheels are connected through belts, a first worm wheel is fixedly connected to the outer side of the lead screw at the front side of the right of the mounting frame, a first worm wheel is in meshed connection with a first worm, the first worm is fixedly connected to the output end of the first motor, the top of the front end of the mounting frame is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a second worm, the top of the second worm is meshed with a second worm wheel, the second worm wheel is fixedly connected to the outer side of the rotating shaft, the outer side of the rotating shaft is fixedly connected with two gears, the inner sides of the front part and the rear part of the mounting frame are rotatably connected with toothed rings respectively, the two toothed rings are meshed with the two gears respectively, the annular tube is arranged between the two toothed rings, one side of the toothed ring, which is close to the annular tube, is fixedly connected with four uniformly distributed cylinder bodies, the inner side of each cylinder body is fixedly connected with a first pressure sensor, one end of the first pressure sensor, which is close to the axis of the toothed ring, is provided with a piston head, one end of the piston head, which is close to the axis of the toothed ring, is fixedly connected with a piston rod, the end of the piston rod close to the axis of the toothed ring is fixedly connected with a push plate, four corners of one end of the push plate close to the axis of the toothed ring are fixedly connected with limit blocks, one end of the limit block close to the axis of the toothed ring is fixedly connected with a second pressure sensor, the limit blocks are connected to the inner side of a first sleeve in a sliding manner, the first sleeve is fixedly connected to one end of a clamping plate far away from the axis of the toothed ring, the clamping plate and the push plate are in one-to-one correspondence, a first spring is arranged on the outer side of the first sleeve and fixedly connected between the clamping plate and the push plate, one ends of the clamping plates on the left side and the right side of the toothed ring close to each other are provided with a second elastic layer, one ends of the clamping plates on the upper side and the lower side of the toothed ring close to each other are provided with a third elastic layer, one side of the third elastic layer close to the axis of the toothed ring is provided with a groove, and one side of the cylinder body close to the annular tube is fixedly connected with an air pipe, the air pipe is arranged on one side of the first pressure sensor, which is far away from the axis of the toothed ring, the front end and the rear end of the left side and the rear end of the right side of the annular pipe are fixedly connected with a first double-way valve, the front end and the rear end of the upper side and the rear end of the lower side of the annular pipe are fixedly connected with a second double-way valve, the left end and the bottom end of the annular pipe are fixedly connected with an air inlet groove, the left side and the right side of the mounting frame are fixedly connected with vertical plates, the bottom end of the inner side of the mounting frame is fixedly connected with a flow guide pipe, the top end of the flow guide pipe and the end, which is close to the two vertical plates, are fixedly connected with a first electromagnet, one side, which is close to the annular pipe, of the first electromagnet is arranged on the lower side, the top end of the second electromagnet is fixedly connected with an air blocking plug, and the inner sides of the first electromagnet on the left side and the right side are fixedly connected with a guide rod, the second electromagnets on the left side and the right side are respectively connected to the outer sides of the guide rods on the left side and the right side in a sliding manner, the movable pipe is connected to the inner side of the guide pipe in a sliding manner, the movable pipe is fixedly connected to the bottom end of the air inlet plug, a second spring is fixedly connected between the air inlet plug and the guide pipe, third springs are fixedly connected between the air plug on the left side of the annular pipe and the vertical plate and between the air plug on the right side and the vertical plate, a height measuring mechanism is arranged on the rear side of the first electric push rod and comprises a second electric push rod, a push block is fixedly connected to the output end of the second electric push rod and is connected to the inner side of the second sleeve in a sliding manner, a third pressure sensor is fixedly connected to the inner side of the bottom of the second sleeve, the third pressure sensor is fixedly connected to the top end of the measuring plate, and a fourth spring is arranged between the third pressure sensor and the push block, the all fixedly connected with second photoelectric sensor in both ends about the measuring plate, the positioning mechanism front side is provided with length measuring mechanism, length measuring mechanism includes the second roof, second roof rear side bottom fixedly connected with third electric putter, third electric putter's output fixedly connected with third photoelectric sensor, be provided with cutting mechanism between first conveyer belt and the mounting bracket, cutting mechanism includes mounting panel and fourth electric putter, mounting panel top sliding connection has the cutting machine, cutting machine fixed connection is at fourth electric putter's output, the air pump rear side is provided with the controller, the positioning mechanism front side is provided with the second conveyer belt.

Preferably, the first two-way valve of the front end on the left side of the annular pipe is communicated with the air pipe on the front side on the left side of the annular pipe, the first two-way valve of the rear end on the left side of the annular pipe is communicated with the air pipe on the rear side on the left side of the annular pipe, the first two-way valve of the front end on the right side of the annular pipe is communicated with the air pipe on the rear side on the right side of the annular pipe, the first two-way valve of the front end on the upper side of the annular pipe is communicated with the air pipe on the front side on the upper side of the annular pipe, the first two-way valve of the front end on the lower side of the annular pipe is communicated with the air pipe on the front side on the lower side of the annular pipe, and the first two-way valve of the rear end on the lower side of the annular pipe is communicated with the air pipe on the rear side of the lower side of the annular pipe.

Preferably, the shape of the first pressure sensor is annular, the shapes of the first electromagnet and the second electromagnet are both annular, the movable pipe penetrates through the first electromagnet and the second electromagnet on the lower side of the annular pipe, the shapes of the air inlet groove, the air inlet plug and the air blocking plug are both conical, and through holes are formed in the inner side of the air inlet plug and one side, close to the axis of the gear ring, of the cylinder body.

Preferably, the right end of the mounting rack is fixedly connected with a first photoelectric sensor.

Preferably, the piston head is in interference fit with the cylinder body, the piston rod penetrates through the cylinder body, and a sealing element is arranged between the movable pipe and the flow guide pipe.

Preferably, the second spring is arranged on the outer side of the movable tube, and the third spring is arranged on the outer side of the guide rod.

Preferably, the first top plate is located above the first conveyor belt, the first top plate is fixedly connected with the bottom plate through a pillar, the second top plate is fixedly connected with the bottom plate through a pillar, the mounting plate is fixedly connected with the bottom plate through a pillar, the controller, the air pump, the negative pressure pump and the first motor are all fixedly connected to the top end of the bottom plate, the lead screw is rotatably connected to the top of the bottom plate, the belt wheel is located below the mounting frame, the rotating shaft is rotatably connected to the top of the mounting frame, the two gears are located right behind the second worm gear, the second pressure sensor is arranged on the inner side of the first sleeve, the second electric push rod is fixedly connected to the bottom end of the first top plate, the second electric push rod is located behind the first electric push rod, the third photoelectric sensor is slidably connected to the bottom end of the second top plate, and the fourth electric push rod is fixedly connected to the top end of the mounting plate, the second conveyor belt is located below the third photosensor.

Preferably, the controller is electrically connected with the first conveyor belt, the second conveyor belt, the first electric push rod, the air pump, the negative pressure pump, the first motor, the second electric push rod, the second photoelectric sensor, the third electric push rod and the fourth electric push rod through signal lines, and the controller is connected with the three-way valve, the second motor, the first pressure sensor, the second pressure sensor, the first two-way valve, the second two-way valve, the first electromagnet, the second electromagnet, the first photoelectric sensor, the third pressure sensor, the third photoelectric sensor and the cutting machine through wireless signals.

The working principle is as follows: the height measuring mechanism detects the size of the aluminum profile, the first conveying belt intermittently conveys the aluminum profile, the positioning mechanism adjusts the posture according to the shape and the size of the aluminum profile and fixes the aluminum profile when the first conveying belt stops conveying the aluminum profile, the length measuring mechanism is matched with the cutting mechanism to perform high-precision cutting on the aluminum profile, the output end of a second electric push rod of the height measuring mechanism moves downwards to enable the push block, the second sleeve, the fourth spring, the third pressure sensor, the measuring plate and the two second photoelectric sensors to move downwards, the measuring plate stops after contacting the aluminum profile, the push block extrudes the fourth spring under the action of the second electric push rod, the elastic force given by the fourth spring to the third pressure sensor is gradually increased, the third pressure sensor is matched with the controller to detect the elastic force of the fourth spring, and when the elastic force reaches a threshold value, the controller enables the output end of the second electric push rod to stop moving downwards, the second photoelectric sensor can measure the distance from the second photoelectric sensor to the bottom plate, the two second photoelectric sensors are matched with the controller to detect the descending distance of the measuring plate, so that the size of the aluminum profile is judged, the controller enables the first motor to drive the first worm to rotate according to the size of the aluminum profile, the first worm is meshed with the first worm wheel, the first worm wheel enables the four lead screws to rotate through a belt wheel and a belt, the lead screws drive the mounting frame to move up and down, the height of the mounting frame is adjusted, the height of the axis of the gear ring is adjusted, the distance between the mounting frame and the bottom plate is detected through the first photoelectric sensor matched with the controller, the detection result of the first photoelectric sensor of the controller finely adjusts the mounting frame, the height of the mounting frame is matched with the size of the aluminum profile, the air blocking plug blocks one air inlet groove, the air blocking plug on the left side of the mounting frame is attached to the air inlet groove on the left side of the annular pipe at the initial moment, the air inlet plug is attached to the air inlet groove on the lower side of the annular pipe, the positioning mechanism is used for an aluminum profile with a square cross section, if the cross section of the aluminum profile is circular, the first electromagnet and the second electromagnet are electrified and mutually attracted, so that the air inlet plug and the air blocking plug move towards one side far away from the annular pipe, then the controller enables the second motor to drive the second worm to rotate for a fixed angle, the second worm drives the rotating shaft and the two gears to rotate through the second worm gear, so that the two gears respectively drive the two toothed rings to rotate for a quarter turn, at the moment, the cylinder bodies on the upper side and the lower side of the annular pipe, the second two-way valve and the third elastic layer rotate to the left side and the right side of the annular pipe, the air inlet groove on the lower side rotates to the right side of the annular pipe, the first electromagnet and the second electromagnet are powered off, and the second spring and the third spring respectively drive the air inlet plug and the air blocking plug to reset, at the moment, the air inlet plug is attached to the air inlet groove which is rotated to the lower side of the annular pipe, the air inlet groove which is rotated to the right side of the annular pipe is plugged by the air plugging plug on the right side, the aluminum profile is conveyed to the interior of the mounting frame by the first conveying belt and then stops running, the aluminum profile is fixed by the positioning mechanism, then the third electric push rod pushes the third photoelectric sensor to move backwards, the third photoelectric sensor detects the distance from the third photoelectric sensor to a target below, under the pushing action of the third electric push rod, the third photoelectric sensor is matched with the controller to detect the aluminum profile which passes through the mounting frame, so that the length of the part of the aluminum profile extending out of the mounting frame is judged, the output end of the fourth electric push rod enables the cutting machine to move to a proper position in the front and back directions according to the length of the part of the aluminum profile extending out of the mounting frame, high-precision fixed-length cutting of the aluminum profile is realized, after the cutting is finished, the positioning mechanism releases the aluminum profile is released by the second conveying belt, the cut aluminum profile is transferred, then the first conveying belt continues to convey the rest aluminum profile, the cutting positioning device fixes and cuts the rest aluminum profile according to the working mode, in the process that the positioning mechanism fixes the aluminum profile, the rear end and the right end of the three-way valve are communicated, the front end of the three-way valve is closed, the air pump enables air to enter the annular pipe after passing through the three-way valve, the flow guide pipe, the movable pipe, the air inlet plug and the air inlet groove, when the cross section of the aluminum profile is square, the second two-way valve is closed, the first two-way valve is communicated, the air enters the air pipe and the cylinder body which are communicated with the first two-way valve through the first two-way valve, the air on one side of the piston head close to the gear ring is discharged from the through hole of the cylinder body, so that the piston head and the piston rod push the push plate, the first spring, the clamping plate and the second elastic layer clamp the aluminum profile, the first sleeve and the limiting block slide relatively in the clamping process, so that the clamping plate and the limiting block extrude the second pressure sensor, the first spring provides buffer for the second pressure sensor, the second pressure sensor is matched with the controller to detect clamping force, when the clamping force reaches a threshold value, the first two-way valve is closed, the air pump stops operating, when the cross section of the aluminum profile is circular, the first two-way valve is closed, the second two-way valve is conducted, air enters the air pipe and the cylinder body which are communicated with the second two-way valve through the second two-way valve, so that the piston head and the piston rod push the push plate, the first spring, the clamping plate and the second elastic layer clamp the aluminum profile, when the clamping force reaches the threshold value, the second two-way valve is closed, the air pump stops operating, in the process that the positioning mechanism releases the aluminum profile, the front end and the right end of the three-way valve are conducted, the rear end of the three-way valve is closed, the first two-way valve and the second two-way valve are opened, the negative pressure pump pumps out the air in the annular pipe through the three-way valve, the flow guide pipe, the movable pipe, the air inlet plug and the air inlet groove, thereby make the gas that the piston head kept away from one side of ring axle center in the cylinder body flow to the annular pipe from the trachea, make piston head and piston rod move towards the one side of keeping away from the ring axle center, outside air gets into the one side that the piston head is close to the ring axle center in the cylinder body from the through-hole of cylinder body, the release to the aluminium alloy is accomplished to the positioning mechanism, the first pressure sensor of piston head removal in-process touching, after first pressure sensor cooperation controller detected pressure and reached the threshold value, first two-way valve and second two-way valve are closed, the negative pressure pump is closed, make the piston rod keep the state when income cylinder body.

(III) advantageous effects

The invention provides an aluminum profile cutting positioning device with high positioning precision. The method has the following beneficial effects:

1. the aluminum profile cutting device presses an aluminum profile by matching the first electric push rod with the press plate and the first elastic layer, the aluminum profile is prevented from tilting in the cutting process, the first conveying belt intermittently conveys the aluminum profile, the positioning mechanism adjusts the posture according to the shape of the aluminum profile and fixes the aluminum profile during the stop of the first conveying belt conveying the aluminum profile, the second motor drives the rotating shaft and the gear to rotate through the worm and the worm gear in the fixing process, so that the gear ring and the structures on the gear ring are driven to rotate through the gear, the clamping plates corresponding to the shape of the aluminum profile are moved to two sides of the aluminum profile, the air flow channel is adjusted, the corresponding clamping plates are driven to fix the aluminum profile, air passages on two sides of the aluminum profile are symmetrical in the fixing and clamping process, all piston heads are stressed in balance, the left side and the right side of the aluminum profile are stressed in balance, the cutting precision is improved, and the cutting positioning device can position the aluminum profile with a square or round cross section, the device has good shape adaptability to aluminum profiles.

2. According to the invention, the size of the aluminum profile is detected through the height measuring mechanism, the two second photoelectric sensors are matched with the controller to detect the descending distance of the measuring plate, so that the size of the aluminum profile is judged, the controller enables the first motor to drive the first worm to rotate according to the size of the aluminum profile, the first worm enables the four screw rods to rotate through the first worm wheel, the belt wheel and the belt, so that the height of the mounting frame is adjusted through the screw rods, the height of the axis of the gear ring is adjusted, the distance between the mounting frame and the bottom plate is detected through the first photoelectric sensors matched with the controller, and the mounting frame is finely adjusted through the detection result of the first photoelectric sensors of the controller, so that the height of the mounting frame is matched with the size of the aluminum profile.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of the positioning mechanism of the present invention;

FIG. 3 is a schematic view of the internal structure of the mounting bracket of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is an enlarged view of FIG. 3 at B;

FIG. 6 is a schematic view of the internal structure of the cylinder according to the present invention;

FIG. 7 is a schematic view of the internal structure of the first sleeve of the present invention;

FIG. 8 is a front view of the height measuring mechanism of the present invention;

FIG. 9 is an enlarged view of the invention at C of FIG. 8;

FIG. 10 is a side view of the length measuring mechanism of the present invention;

fig. 11 is a perspective view of the cutting mechanism of the present invention.

Wherein, 1, a bottom plate; 2. a first conveyor belt; 3. a positioning mechanism; 4. a height measuring mechanism; 5. a length measuring mechanism; 6. a cutting mechanism; 7. a second conveyor belt; 8. a controller; 301. a first top plate; 302. a first electric push rod; 303. pressing a plate; 304. a first resilient layer; 305. a mounting frame; 306. a three-way valve; 307. an air pump; 308. a negative pressure pump; 309. a screw rod; 310. a pulley; 311. a first worm gear; 312. a first worm; 313. a first motor; 314. a second motor; 315. a second worm; 316. a second worm gear; 317. a rotating shaft; 318. a gear; 319. a toothed ring; 320. a cylinder body; 321. a first pressure sensor; 322. a piston head; 323. a piston rod; 324. pushing the plate; 325. a limiting block; 326. a second pressure sensor; 327. a first sleeve; 328. a clamping plate; 329. a first spring; 330. a second elastic layer; 331. a third elastic layer; 332. an air tube; 333. a first two-way valve; 334. a second two-way valve; 335. an annular tube; 336. an air inlet groove; 337. a vertical plate; 338. a flow guide pipe; 339. a first electromagnet; 340. a second electromagnet; 341. an air inlet plug; 342. blocking an air plug; 343. a guide bar; 344. a movable tube; 345. a second spring; 346. a third spring; 347. a first photosensor; 401. a second electric push rod; 402. a push block; 403. a second sleeve; 404. a third pressure sensor; 405. measuring a plate; 406. a second photosensor; 407. a fourth spring; 501. a second top plate; 502. a third electric push rod; 503. a third photosensor; 601. mounting a plate; 602. a cutter; 603. and a fourth electric push rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b):

as shown in fig. 1 to 11, an aluminum profile cutting positioning device with high positioning accuracy provided by an embodiment of the present invention includes a bottom plate 1, a first conveyor belt 2 is disposed at the top of the rear side of the bottom plate 1, a positioning mechanism 3 is disposed at the front side of the first conveyor belt 2, the positioning mechanism 3 includes a first top plate 301, an installation frame 305 and a ring pipe 335, a first electric push rod 302 is fixedly connected to the bottom end of the front side of the first top plate 301, a press plate 303 is fixedly connected to the output end of the first electric push rod 302, a first elastic layer 304 is disposed at the bottom end of the press plate 303, a three-way valve 306 is fixedly connected to the left end of the installation frame 305, an air pump 307 is communicated to the rear end of the three-way valve 306, a negative pressure pump 308 is communicated to the front end of the three-way valve 306, lead screws 309 are all threadedly connected to the four corners of the bottom of the installation frame 305, belt pulleys 310 are fixedly connected to the outer side of the middle of the lead screws 309, adjacent belt 310 are connected through belts, a first worm wheel 311 is fixedly connected to the outer side of the right front side of the installation frame 305, the rear side of the first worm wheel 311 is engaged and connected with a first worm 312, the first worm 312 is fixedly connected with the output end of a first motor 313, the top of the front end of the mounting rack 305 is fixedly connected with a second motor 314, the output end of the second motor 314 is fixedly connected with a second worm 315, the top of the second worm 315 is engaged and connected with a second worm wheel 316, the second worm wheel 316 is fixedly connected with the outer side of a rotating shaft 317, the outer side of the rotating shaft 317 is fixedly connected with two gears 318, the inner sides of the front part and the rear part of the mounting rack 305 are respectively and rotatably connected with a toothed ring 319, the two toothed rings 319 are respectively engaged and connected with the two gears 318, the annular pipe 335 is arranged between the two toothed rings 319, one side of the toothed ring 319 close to the annular pipe 335 is fixedly connected with four evenly distributed cylinder bodies 320, the inner side of the cylinder body 320 is fixedly connected with a first pressure sensor 321, one end of the first pressure sensor 321 close to the axis of the toothed ring 319 is provided with a piston head 322, a piston rod 323 is fixedly connected to one end of the piston head 322 close to the axis of the gear ring 319, a push plate 324 is fixedly connected to one end of the piston rod 323 close to the axis of the gear ring 319, limit blocks 325 are fixedly connected to four corners of one end of the push plate 324 close to the axis of the gear ring 319, a second pressure sensor 326 is fixedly connected to one end of the limit block 325 close to the axis of the gear ring 319, the limit block 325 is slidably connected to the inner side of a first sleeve 327, the first sleeve 327 is fixedly connected to one end of a clamping plate 328 far away from the axis of the gear ring 319, the clamping plate 328 corresponds to the push plate 324 one by one, a first spring 329 is arranged on the outer side of the first sleeve 327, the first spring 329 is fixedly connected between the clamping plate 328 and the push plate 324, a second elastic layer 330 is arranged at one end of the clamping plate 328 close to the left side and the right side of the gear ring 319, a third elastic layer 331 is arranged at one end of the clamping plate 328 close to the upper side and the lower side of the gear ring 319, a groove is provided with a groove, an air pipe 332 is fixedly connected to one side of the cylinder body 320 close to the annular pipe 335, the air pipe 332 is arranged at one side of the first pressure sensor 321 far away from the axis of the toothed ring 319, the front and rear ends of the left and right sides of the annular pipe 335 are fixedly connected with a first two-way valve 333, the front and rear ends of the upper and lower sides of the annular pipe 335 are fixedly connected with a second two-way valve 334, the left and bottom ends of the annular pipe 335 are fixedly connected with an air inlet groove 336, the left and right sides of the mounting frame 305 are fixedly connected with vertical plates 337, the bottom end of the inner side of the mounting frame 305 is fixedly connected with a flow guide pipe 338, the top end of the flow guide pipe 338 and the end of the two vertical plates 337 close to each other are fixedly connected with a first electromagnet 339, one side of the first electromagnet 339 close to the annular pipe 335 is provided with a second electromagnet 340, the top end of the lower second electromagnet 340 is fixedly connected with an air inlet plug 341, and one end of the second electromagnet 340 close to each other is fixedly connected with an air plug 342, the inner sides of the first electromagnets 339 on the left side and the right side are fixedly connected with guide rods 343, the second electromagnets 340 on the left side and the right side are respectively and slidably connected with the outer sides of the guide rods 343 on the left side and the right side, the inner side of the flow guide tube 338 is slidably connected with a movable tube 344, the movable tube 344 is fixedly connected with the bottom end of an air inlet plug 341, a second spring 345 is fixedly connected between the air inlet plug 341 and the flow guide tube 338, third springs 346 are fixedly connected between an air blocking plug 342 on the left side of a ring-shaped tube 335 and a vertical plate 337 and between an air blocking plug 342 on the right side and the vertical plate 337, a height measuring mechanism 4 is arranged on the rear side of the first electric push rod 302, the height measuring mechanism 4 comprises a second electric push rod 401, the output end of the second electric push rod 401 is fixedly connected with a push block 402, the push block 402 is slidably connected with the inner side of a second sleeve 403, the inner side of the bottom of the second sleeve 403 is fixedly connected with a third pressure sensor 404, the third pressure sensor 404 is fixedly connected with the top end of the measuring plate 405, a fourth spring 407 is arranged between the third pressure sensor 404 and the push block 402, the left end and the right end of the measuring plate 405 are fixedly connected with a second photoelectric sensor 406, the front side of the positioning mechanism 3 is provided with a length measuring mechanism 5, the length measuring mechanism 5 comprises a second top plate 501, the bottom end of the rear side of the second top plate 501 is fixedly connected with a third electric push rod 502, the output end of the third electric push rod 502 is fixedly connected with a third photoelectric sensor 503, a cutting mechanism 6 is arranged between the first conveyor belt 2 and the mounting frame 305, the cutting mechanism 6 comprises a mounting plate 601 and a fourth electric push rod 603, the top end of the mounting plate 601 is slidably connected with a cutting machine 602, the cutting machine 602 is fixedly connected with the output end of the fourth electric push rod 603, the rear side of the air pump 307 is provided with a controller 8, the front side of the positioning mechanism 3 is provided with a second conveyor belt 7, the height measuring mechanism 4 detects the size of the aluminum profile, and the first conveyor belt 2 intermittently conveys the aluminum profile, when the first conveyor belt 2 stops conveying the aluminum profile, the positioning mechanism 3 adjusts the posture according to the shape and the size of the aluminum profile and fixes the aluminum profile, the length measuring mechanism 5 is matched with the cutting mechanism 6 to cut the aluminum profile with high precision, the output end of the second electric push rod 401 of the height measuring mechanism 4 moves downwards to enable the push block 402, the second sleeve 403, the fourth spring 407, the third pressure sensor 404, the measuring plate 405 and the two second photoelectric sensors 406 to move downwards, the measuring plate 405 stops after contacting the aluminum profile, the push block 402 extrudes the fourth spring 407 under the action of the second electric push rod 401, the elastic force given by the fourth spring 407 to the third pressure sensor 404 is gradually increased, the third pressure sensor 404 is matched with the controller 8 to detect the elastic force of the fourth spring 407, when the elastic force reaches a threshold value, the controller 8 stops the output end of the second electric push rod 401 to move downwards, the second photoelectric sensors 406 can measure the distance from the second photoelectric sensors 406 to the bottom plate 1, the two second photoelectric sensors 406 are matched with the controller 8 to detect the descending distance of the measuring plate 405, so as to judge the size of the aluminum profile, the controller 8 enables the first motor 313 to drive the first worm 312 to rotate according to the size of the aluminum profile, the first worm 312 is meshed with the first worm wheel 311, so that the first worm wheel 311 enables the four lead screws 309 to rotate through the belt wheels 310 and the belts, the outer side of the upper portion of each lead screw 309 is provided with a thread, the lead screws 309 drive the mounting frame 305 to move, the height of the mounting frame 305 is adjusted, so as to adjust the height of the axle center of the gear ring 319, the first conveying belt 2 conveys the aluminum profile into the mounting frame 305 and stops running, the positioning mechanism 3 fixes the aluminum profile, then the third electric push rod 502 pushes the third photoelectric sensor 503 to move backwards, the third photoelectric sensor 503 detects the distance from the third photoelectric sensor 503 to a target below, under the pushing action of the third electric push rod 502, the third photoelectric sensor 503 is matched with the controller 8 to detect the aluminum profile passing through the mounting frame 305, thereby judging the length of the part of the aluminum profile extending out of the mounting rack 305, the output end of the fourth electric push rod 603 enables the cutting machine 602 to move to a proper position in the front-back direction according to the length of the part of the aluminum profile extending out of the mounting rack 305, high-precision fixed-length cutting of the aluminum profile is realized, after the cutting is finished, the positioning mechanism 3 releases the aluminum profile, the second conveyor belt 7 transfers the cut aluminum profile, then the first conveyor belt 2 continues to convey the rest aluminum profile, the cutting positioning device fixes and cuts the rest aluminum profile according to the working mode, in the process of fixing the aluminum profile by the positioning mechanism 3, the rear end and the right end of the three-way valve 306 are conducted, the front end is closed, the air pump 307 enables air to enter the annular pipe 335 after passing through the three-way valve 306, the flow guide pipe 338, the movable pipe 344, the air inlet plug 341 and the air inlet groove 336, when the cross section of the aluminum profile is square, the second two-way valve 334 is closed, the first two-way valve 333 is opened, gas enters the gas pipe 332 and the cylinder body 320 which are communicated with the first two-way valve 333 through the first two-way valve 333, the gas on the side of the piston head 322 close to the toothed ring 319 is discharged from the through hole of the cylinder body 320, so that the piston head 322 and the piston rod 323 push the push plate 324, the first spring 329, the clamping plate 328 and the second elastic layer 330 to clamp the aluminum profile, the first sleeve 327 and the limiting block 325 slide relatively in the clamping process, the clamping plate 328 and the limiting block 325 press the second pressure sensor 326, the first spring 329 provides buffer for the second pressure sensor 326, the second pressure sensor 326 is matched with the controller 8 to detect the clamping force, when the clamping force reaches a threshold value, the first two-way valve 333 is closed, the air pump 307 stops operating, when the cross section of the aluminum profile is circular, the first two-way valve 333 is closed, the second two-way valve 334 is opened, the air enters the air pipe 332 and the cylinder body 320 which are communicated with the second two-way valve 334 through the second two-way valve 334, so that the piston head 322 and the piston rod 323 push the push plate 324, the first spring 329, the clamping plate 328 and the second elastic layer 330 to clamp the aluminum profile, when the clamping force reaches a threshold value, the second two-way valve 334 is closed, the air pump 307 stops operating, in the process that the positioning mechanism 3 releases the aluminum profile, the front end and the right end of the three-way valve 306 are communicated, the rear end is closed, the first two-way valve 333 and the second two-way valve 334 are opened, the negative pressure pump 308 pumps the air in the annular pipe 335 through the three-way valve 306, the flow pipe 338, the movable pipe 344, the air inlet plug 341 and the air inlet groove 336, so that the air on the side of the piston head 322 far away from the axis of the toothed ring 319 in the cylinder body 320 flows from the air pipe 332 to the annular pipe 335, the piston head 322 and the piston rod 323 move towards the side far away from the axis of the toothed ring 319, and the outside air enters the side of the piston head 322 near the toothed ring 319 in the cylinder body 320 from the through hole of the cylinder body 320, the positioning mechanism 3 completes the release of the aluminum profile, the piston head 322 touches the first pressure sensor 321 in the moving process, after the first pressure sensor 321 is matched with the controller 8 to detect that the pressure reaches the threshold value, the first double-way valve 333 and the second double-way valve 334 are closed, the negative pressure pump 308 is closed, the piston rod 323 is kept in the state when the piston rod is retracted into the cylinder body 320, in the process of fixing the aluminum profile, the air passages on two sides of the aluminum profile are symmetrical, the stress on each piston head 322 is balanced, the stress on the left side and the right side of the aluminum profile is balanced, the cutting precision is improved, the cutting positioning device can position the aluminum profile with the square and circular cross section, and the device has good shape adaptability to the aluminum profile.

The first two-way valve 333 at the front end of the left side of the annular pipe 335 is communicated with the air pipe 332 at the front of the left side of the annular pipe 335, the first two-way valve 333 at the rear end of the left side of the annular pipe 335 is communicated with the air pipe 332 at the rear of the left side of the annular pipe 335, the first two-way valve 333 at the front end of the right side of the annular pipe 335 is communicated with the air pipe 332 at the front of the right side of the annular pipe 335, the first two-way valve 333 at the front end of the upper side of the annular pipe 335 is communicated with the air pipe 332 at the front of the upper side of the annular pipe 335, the first two-way valve 333 at the rear end of the upper side of the annular pipe 335 is communicated with the air pipe 332 at the rear of the upper side of the annular pipe 335, the first two-way valve 333 at the front end of the lower side of the annular pipe 335 is communicated with the air pipe 332 at the front of the lower side of the annular pipe 335, the first two-way valve 333 at the rear end of the lower side of the annular pipe 335 is communicated with the air pipe 332 at the rear of the lower side of the annular pipe 335, and the air-blocking plug 342 blocks one air-inlet groove 336, at the initial moment, the air blocking plug 342 on the left side of the mounting rack 305 is attached to the air inlet groove 336 on the left side of the annular pipe 335, the air inlet plug 341 is attached to the air inlet groove 336 on the lower side of the annular pipe 335, at this moment, the positioning mechanism 3 is used for an aluminum profile with a square cross section, if the cross section of the aluminum profile is circular, the first electromagnet 339 and the second electromagnet 340 are electrified and attracted with each other, so that the air inlet plug 341 and the air blocking plug 342 move towards one side far away from the annular pipe 335, then the controller 8 enables the second motor 314 to drive the second worm 315 to rotate for a fixed angle, the second worm 315 drives the rotating shaft 317 and the two gears 318 to rotate through the second worm wheel 316, so that the two gears 318 respectively drive the two toothed rings 319 to rotate for a quarter of a turn, at this moment, the cylinder 320, the second two-way valve 334 and the third elastic layer 331 on the upper and the lower sides of the annular pipe 335 rotate to the left side and the left side of the annular pipe 335, the air inlet groove 336 on the lower side rotates to the right side of the annular pipe 335, the first electromagnet 339 and the second electromagnet 340 are powered off, the second spring 345 and the third spring 346 respectively drive the air inlet plug 341 and the air blocking plug 342 to reset, at the moment, the air inlet plug 341 is attached to the air inlet groove 336 rotating to the lower side of the annular pipe 335, and the air blocking plug 342 on the right side blocks the air inlet groove 336 rotating to the right side of the annular pipe 335.

The first pressure sensor 321 is annular, the first electromagnet 339 and the second electromagnet 340 are both annular, the movable pipe 344 penetrates through the first electromagnet 339 and the second electromagnet 340 on the lower side of the annular pipe 335, the air inlet groove 336, the air inlet plug 341 and the air blocking plug 342 are all conical, and through holes are formed in the inner side of the air inlet plug 341 and the side, close to the axis of the gear ring 319, of the cylinder 320.

The first photoelectric sensor 347 of mounting bracket 305 right-hand member fixedly connected with, through the interval that first photoelectric sensor 347 cooperates controller 8 to detect mounting bracket 305 and bottom plate 1, the detection result of the first photoelectric sensor 347 of controller 8 finely tunes mounting bracket 305, makes the height of mounting bracket 305 suit with the size of dimensions of aluminium alloy.

The piston head 322 is in interference fit with the cylinder body 320, the piston rod 323 penetrates through the cylinder body 320, and a sealing member is arranged between the movable tube 344 and the flow guide tube 338.

The second spring 345 is disposed outside the movable tube 344, and the third spring 346 is disposed outside the guide bar 343, and the guide bar 343 guides the third spring 346.

The first top plate 301 is positioned above the first conveyor belt 2, the first top plate 301 is fixedly connected with the bottom plate 1 through a pillar, the second top plate 501 is fixedly connected with the bottom plate 1 through a pillar, the mounting plate 601 is fixedly connected with the bottom plate 1 through a pillar, the controller 8, the air pump 307, the negative pressure pump 308 and the first motor 313 are all fixedly connected with the top end of the bottom plate 1, the screw rod 309 is rotatably connected with the top of the bottom plate 1, the belt pulley 310 is positioned below the mounting frame 305, the rotating shaft 317 is rotatably connected with the top of the mounting frame 305, the two gears 318 are both positioned right behind the second worm gear 316, the second pressure sensor 326 is arranged inside the first sleeve 327, the second electric push rod 401 is fixedly connected with the bottom end of the first top plate 301, the second electric push rod 401 is positioned behind the first electric push rod 302, the third photoelectric sensor 503 is slidably connected with the bottom end of the second top plate 501, the fourth electric push rod 603 is fixedly connected with the top end of the mounting plate 601, the second conveyor belt 7 is located below the third photosensor 503.

The controller 8 is electrically connected with the first conveyor belt 2, the second conveyor belt 7, the first electric push rod 302, the air pump 307, the negative pressure pump 308, the first motor 313, the second electric push rod 401, the second photoelectric sensor 406, the third electric push rod 502 and the fourth electric push rod 603 through signal lines, and the controller 8 is connected with the three-way valve 306, the second motor 314, the first pressure sensor 321, the second pressure sensor 326, the first two-way valve 333, the second two-way valve 334, the first electromagnet 339, the second electromagnet 340, the first photoelectric sensor 347, the third pressure sensor 404, the third photoelectric sensor 503 and the cutting machine 602 through wireless signals.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a positioner is tailor to aluminium alloy that positioning accuracy is high, includes bottom plate (1), its characterized in that: the bottom plate is characterized in that a first conveying belt (2) is arranged at the top of the rear side of the bottom plate (1), a positioning mechanism (3) is arranged on the front side of the first conveying belt (2), the positioning mechanism (3) comprises a first top plate (301), an installation frame (305) and a ring pipe (335), a first electric push rod (302) is fixedly connected to the bottom end of the front side of the first top plate (301), a pressing plate (303) is fixedly connected to the output end of the first electric push rod (302), a first elastic layer (304) is arranged at the bottom end of the pressing plate (303), a three-way valve (306) is fixedly connected to the left end of the installation frame (305), an air pump (307) is communicated with the rear end of the three-way valve (306), a negative pressure pump (308) is communicated with the front end of the three-way valve (306), four corners of the bottom of the installation frame (305) are all in threaded connection with screw rods (309), and a belt wheel (310) is fixedly connected to the outer side of the middle of the screw rods (309), the belt wheel (310) is connected through a belt, a first worm wheel (311) is fixedly connected to the outer side of a screw rod (309) on the front side of the right part of the mounting frame (305), a first worm (312) is meshed with the rear side of the first worm wheel (311), the first worm (312) is fixedly connected to the output end of a first motor (313), a second motor (314) is fixedly connected to the top of the front end of the mounting frame (305), a second worm (315) is fixedly connected to the output end of the second motor (314), a second worm wheel (316) is meshed with the top of the second worm (315), the second worm wheel (316) is fixedly connected to the outer side of a rotating shaft (317), two gears (318) are fixedly connected to the outer side of the rotating shaft (317), a gear ring (319) is rotatably connected to the inner side of the front part and the inner side of the rear part of the mounting frame (305), and the gear ring (319) is meshed with the two gears (318) respectively, the annular pipe (335) is arranged between two toothed rings (319), one side of the toothed ring (319) close to the annular pipe (335) is fixedly connected with four evenly distributed cylinder bodies (320), the inner side of the cylinder body (320) is fixedly connected with a first pressure sensor (321), one end of the first pressure sensor (321) close to the axis of the toothed ring (319) is provided with a piston head (322), one end of the piston head (322) close to the axis of the toothed ring (319) is fixedly connected with a piston rod (323), one end of the piston rod (323) close to the axis of the toothed ring (319) is fixedly connected with a push plate (324), four corners of one end of the push plate (324) close to the axis of the toothed ring (319) are fixedly connected with a limit block (325), one end of the limit block (325) close to the axis of the toothed ring (319) is fixedly connected with a second pressure sensor (326), the limit block (325) is connected to the inner side of a first sleeve (327) in a sliding manner, the first sleeve (327) is fixedly connected to one end, far away from the axis of the toothed ring (319), of the clamping plate (328), the clamping plate (328) corresponds to the push plate (324) in a one-to-one mode, a first spring (329) is arranged on the outer side of the first sleeve (327), the first spring (329) is fixedly connected between the clamping plate (328) and the push plate (324), one end, close to the clamping plate (328) on the left side and the right side of the toothed ring (319), of the clamping plate is provided with a second elastic layer (330), one end, close to the clamping plate (328) on the upper side and the lower side of the toothed ring (319), of the clamping plate is provided with a third elastic layer (331), one side, close to the axis of the toothed ring (319), of the third elastic layer (331) is provided with a groove, one side, close to the annular pipe (335), of the cylinder body (320) is fixedly connected with an air pipe (332), and the air pipe (332) is arranged on one side, far away from the axis of the toothed ring (319), of the first pressure sensor (321), the front end and the rear end of the left side and the right side of the annular pipe (335) are respectively fixedly connected with a first two-way valve (333), the front end and the rear end of the upper side and the lower side of the annular pipe (335) are respectively fixedly connected with a second two-way valve (334), the left end and the bottom end of the annular pipe (335) are respectively fixedly connected with an air inlet groove (336), the left side and the right side of the mounting rack (305) are respectively fixedly connected with a vertical plate (337), the bottom end of the inner side of the mounting rack (305) is fixedly connected with a flow guide pipe (338), the top end of the flow guide pipe (338) and the end of the two vertical plates (337) close to each other are respectively fixedly connected with a first electromagnet (339), one side of the first electromagnet (339) close to the annular pipe (335) is provided with a second electromagnet (340), the top end of the second electromagnet (340) is fixedly connected with an air inlet plug (341), and the end of the left side and the second electromagnet (340) close to each other is fixedly connected with an air plug (342), guide rods (343) are fixedly connected to the inner sides of the first electromagnets (339) on the left side and the right side, the second electromagnets (340) on the left side and the right side are respectively connected to the outer sides of the guide rods (343) on the left side and the right side in a sliding manner, a movable pipe (344) is connected to the inner side of the guide pipe (338) in a sliding manner, the movable pipe (344) is fixedly connected to the bottom end of an air inlet plug (341), a second spring (345) is fixedly connected between the air inlet plug (341) and the guide pipe (338), third springs (346) are fixedly connected between the air blocking plug (342) on the left side of the annular pipe (335) and the vertical plate (337) on the right side and between the air blocking plug (342) on the right side and the vertical plate (337), a height measuring mechanism (4) is arranged on the rear side of the first electric push rod (302), the height measuring mechanism (4) comprises a second electric push rod (401), and a push block (402) is fixedly connected to the output end of the second electric push rod (401), the push block (402) is connected to the inner side of the second sleeve (403) in a sliding manner, a third pressure sensor (404) is fixedly connected to the inner side of the bottom of the second sleeve (403), the third pressure sensor (404) is fixedly connected to the top end of the measuring plate (405), a fourth spring (407) is arranged between the third pressure sensor (404) and the push block (402), the left end and the right end of the measuring plate (405) are fixedly connected with a second photoelectric sensor (406), the front side of the positioning mechanism (3) is provided with a length measuring mechanism (5), the length measuring mechanism (5) comprises a second top plate (501), the bottom end of the rear side of the second top plate (501) is fixedly connected with a third electric push rod (502), the output end of the third electric push rod (502) is fixedly connected with a third photoelectric sensor (503), and a cutting mechanism (6) is arranged between the first conveying belt (2) and the mounting frame (305), cutting mechanism (6) include mounting panel (601) and fourth electric putter (603), mounting panel (601) top sliding connection has cutting machine (602), cutting machine (602) fixed connection is at the output of fourth electric putter (603), air pump (307) rear side is provided with controller (8), positioning mechanism (3) front side is provided with second conveyer belt (7).

2. The aluminum profile cutting positioning device with high positioning accuracy as recited in claim 1, characterized in that: the first two-way valve (333) at the front end of the left side of the annular pipe (335) is communicated with the air pipe (332) at the front of the left side of the annular pipe (335), the first two-way valve (333) at the rear end of the left side of the annular pipe (335) is communicated with the air pipe (332) at the rear of the left side of the annular pipe (335), the first two-way valve (333) at the front end of the right side of the annular pipe (335) is communicated with the air pipe (332) at the front of the right side of the annular pipe (335), the first two-way valve (333) at the rear end of the right side of the annular pipe (335) is communicated with the air pipe (332) at the rear of the right side of the annular pipe (335), the first two-way valve (333) at the front end of the upper side of the annular pipe (335) is communicated with the air pipe (332) at the rear of the upper side of the annular pipe (335), the first two-way valve (333) at the front end of the lower side of the annular pipe (335) is communicated with the air pipe (332) at the rear of the upper side of the annular pipe (335), and a first two-way valve (333) at the rear end of the lower side of the annular pipe (335) is communicated with an air pipe (332) at the rear of the lower side of the annular pipe (335).

3. The aluminum profile cutting positioning device with high positioning accuracy as recited in claim 1, characterized in that: the shape of the first pressure sensor (321) is annular, the shapes of the first electromagnet (339) and the second electromagnet (340) are both annular, the movable pipe (344) penetrates through the first electromagnet (339) and the second electromagnet (340) on the lower side of the annular pipe (335), the shapes of the air inlet groove (336), the air inlet plug (341) and the air blocking plug (342) are both conical, and through holes are formed in the inner side of the air inlet plug (341) and one side, close to the axis of the toothed ring (319), of the cylinder body (320).

4. The aluminum profile cutting positioning device with high positioning accuracy as recited in claim 1, characterized in that: the right end of the mounting rack (305) is fixedly connected with a first photoelectric sensor (347).

5. The aluminum profile cutting positioning device with high positioning accuracy as recited in claim 1, characterized in that: the piston head (322) is in interference fit with the cylinder body (320), the piston rod (323) penetrates through the cylinder body (320), and a sealing element is arranged between the movable pipe (344) and the guide pipe (338).

6. The aluminum profile cutting positioning device with high positioning accuracy as recited in claim 1, characterized in that: the second spring (345) is arranged outside the movable tube (344), and the third spring (346) is arranged outside the guide rod (343).

7. The aluminum profile cutting positioning device with high positioning accuracy as recited in claim 1, characterized in that: the first top plate (301) is located above the first conveying belt (2), the first top plate (301) is fixedly connected with the bottom plate (1) through a strut, the second top plate (501) is fixedly connected with the bottom plate (1) through a strut, the mounting plate (601) is fixedly connected with the bottom plate (1) through a strut, the controller (8), the air pump (307), the negative pressure pump (308) and the first motor (313) are all fixedly connected to the top end of the bottom plate (1), the lead screw (309) is rotatably connected to the top of the bottom plate (1), the belt wheel (310) is located below the mounting frame (305), the rotating shaft (317) is rotatably connected to the top of the mounting frame (305), the two gears (318) are located right behind the second worm wheel (316), the second pressure sensor (326) is arranged on the inner side of the first sleeve (327), and the second electric push rod (401) is fixedly connected to the bottom end of the first top plate (301), the second electric push rod (401) is located behind the first electric push rod (302), the third photoelectric sensor (503) is connected to the bottom end of the second top plate (501) in a sliding mode, the fourth electric push rod (603) is fixedly connected to the top end of the mounting plate (601), and the second conveyor belt (7) is located below the third photoelectric sensor (503).

8. The aluminum profile cutting positioning device with high positioning accuracy as recited in claim 1, characterized in that: the controller (8) is electrically connected with the first conveyor belt (2), the second conveyor belt (7), the first electric push rod (302), the air pump (307), the negative pressure pump (308), the first motor (313), the second electric push rod (401), the second photoelectric sensor (406), the third electric push rod (502) and the fourth electric push rod (603) through signal lines, and the controller (8) is connected with the three-way valve (306), the second motor (314), the first pressure sensor (321), the second pressure sensor (326), the first two-way valve (333), the second two-way valve (334), the first electromagnet (339), the second electromagnet (340), the first photoelectric sensor (347), the third pressure sensor (404), the third photoelectric sensor (503) and the cutting machine (602) through wireless signals.