CN115890446A - Multi-bit line cutting device and line cutting method - Google Patents

Abstract

The invention discloses a multi-position line cutting device and a multi-position line cutting method, wherein the multi-position line cutting device comprises a base, a plurality of supporting components and a plurality of cutting components, wherein each supporting component is connected to the base and comprises a supporting frame, and supporting positions are respectively formed in each supporting frame and used for supporting a workpiece; each cutting assembly is connected to the base and is respectively positioned between the adjacent support frames, and each cutting assembly comprises a rack, a cutting wheel set rotatably connected to one side of the rack and a cutting line wound on each cutting wheel set; an avoidance port is formed on the frame; in the cutting process, each cutting assembly can cut the workpiece synchronously, the process that a single cutting assembly repeatedly lifts, cuts and continuously feeds is omitted, and the cutting efficiency is high.

Description

Multi-bit line cutting device and line cutting method

Technical Field

The invention belongs to the technical field of processing equipment, and particularly relates to a multi-bit line cutting device and a multi-bit line cutting method.

Background

Compared with the traditional knife saw blade, the traditional grinding wheel and the traditional internal cutting, the linear cutting technology has the advantages of high efficiency, high productivity, high precision and the like, and the principle is that a workpiece to be processed is rubbed by a cutting line moving at a high speed, so that the purpose of cutting is achieved.

In the cutting process, the cutting line forms a fretsaw on the rack under the action of the cutting wheel, the workpiece to be machined and the rack with the cutting line are arranged to move relatively, and the fretsaw is used for cutting the workpiece.

The existing cutting machine generally adopts a single station to cut, the cutting efficiency is low, in the cutting process of the diamond wire, the cutting line and a workpiece form line contact in a cutting area, under the condition that the workpiece is circular, the contact length of the cutting line and the workpiece changes, the stress of the diamond wire is changed, the tension on the wire fluctuates, the adverse effect is generated on the processing surface, the quality of the cutting surface is poor, and the problems of edge breakage and the like of the workpiece are easily formed at the position of a fracture of the workpiece cut by the diamond wire.

Disclosure of Invention

The invention aims to provide a multi-bit line cutting device to solve the problems that a traditional cutting machine in the prior art is low in cutting efficiency, poor in quality of a cutting surface, edge breakage and the like.

In order to realize the purpose of the invention, the invention is realized by adopting the following technical scheme:

in one aspect, the present invention provides a multi-bit line cutting apparatus, which includes:

a base;

the supporting components are connected to the base and comprise supporting frames, and supporting positions are formed in the supporting frames respectively and used for supporting workpieces;

the cutting assemblies are connected to the base and are respectively positioned between the adjacent support frames, each cutting assembly comprises a rack and a cutting wheel set for winding a cutting line to cut a workpiece, and the cutting wheel set is rotatably connected to one side of the rack; an avoidance port is formed on the frame;

a controller configured for controlling rotation of the workpiece and for controlling the cutting assembly switch.

In some embodiments of the present application, each of the supporting assemblies further includes a shaft sleeve coinciding with an axis of the workpiece, the shaft sleeve is rotatably connected in the corresponding supporting position, at least one rotation driving assembly is connected to the shaft sleeve, the rotation driving assembly is configured to drive the shaft sleeve to rotate and drive the workpiece to rotate, and the controller is connected to the rotation driving assembly.

In some embodiments of the present application, a chuck is connected to each of the sleeves, the chuck forming a hollow connecting portion in which the workpiece is located;

and a fastening part is also formed in the connecting part of the chuck and used for clamping the workpiece in the connecting part.

In some embodiments of the present application, the rotary drive assembly includes a drive member and a transmission member, the drive member being connected to the bushing through the transmission member.

In some embodiments of the present application, a moving rail is formed on the base, and a guide portion adapted to the moving rail is formed on each of the supporting frames and each of the racks, respectively.

In some embodiments of the present application, the base is further formed with a size mark along a length direction of the moving rail.

In some embodiments of the present application, the cutting device further includes a feeding assembly, which includes a feeding driving portion fixed on the base and a feeding member connected to the feeding driving portion, the feeding driving portion is connected to the controller, and the feeding member is detachably connected to an end of the workpiece, and is used for driving the workpiece to be fed to a preset cutting position along an axial direction of the workpiece.

In some embodiments of the present application, a rolling portion is rotatably connected within the connecting portion along a feeding direction of the workpiece.

In some embodiments of the present application, the cutting wheel set comprises a tension wheel and at least one drive wheel, the drive wheel being connected to a cutting drive; the tension wheel is connected with a tensioning assembly, and the tensioning assembly is used for adjusting the tension of the cutting line.

In another aspect, the present invention further provides a wire cutting method, which includes any one of the above-mentioned multi-bit line cutting apparatuses, and includes the following steps:

placing a workpiece to be cut in a supporting position on each supporting assembly, and feeding the workpiece to a preset cutting position through a feeding assembly;

the controller controls the rotary driving component to drive the workpiece to rotate around the axis of the workpiece;

the controller controls each cutting wheel set to move, the cutting lines rotating at high speed on each cutting wheel set generate relative motion with different positions of the workpiece, and cutting is carried out on different positions of the workpiece;

after the workpiece is cut, the controller controls each cutting assembly to reset, and the cutting line exits from the workpiece;

the controller controls the workpiece to stop rotating and controls the cutting line to stop moving;

and disassembling the cut workpiece.

Compared with the prior art, the invention has the advantages and positive effects that:

the multi-position line cutting device is provided with the plurality of cutting assemblies, each cutting assembly can synchronously cut a workpiece in the cutting process, the process that a single cutting assembly repeatedly lifts, cuts and continuously feeds is omitted, and the cutting efficiency is high;

the rotary cutting mode changes the contact between the cutting line and the workpiece from the existing line contact into point contact, greatly reduces the contact force, improves the processing quality of the truncated end face and reduces the processing time.

Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of an embodiment of a multi-bit line cutting apparatus according to the present invention;

FIG. 2 is a top view of an embodiment of a multi-bit line cutting device according to the present invention;

FIG. 3 is a side view of an embodiment of a multi-bit line cutting apparatus according to the present invention;

FIG. 4 is a schematic view of the support bracket coupled to the rotary drive assembly;

FIG. 5 is an elevation view of the support bracket and rotary drive assembly;

FIG. 6 isbase:Sub>A cross-sectional view A-A of FIG. 5;

FIG. 7 is a schematic view of the support bracket, sleeve and chuck connection;

FIG. 8 is a schematic flow diagram of a wire cutting method;

in the figure, the position of the first and second end faces,

100. a base;

200. a workpiece;

300. a support assembly;

310. a support frame;

320. a shaft sleeve;

321. a chuck; 322. a connecting portion; 323. a fastening section;

330. a rotary drive assembly;

340. a transmission member;

400. a cutting assembly;

410. a frame; 411. avoiding the mouth;

420. a first drive wheel;

430. a second drive wheel;

440. a tension pulley;

450. cutting the line.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically coupled, may be directly coupled, or may be indirectly coupled through an intermediary. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

As shown in fig. 1 to 3, the present application provides a multi-bit line cutting apparatus, which includes a base 100, a plurality of support assemblies 300 connected to the base 100, and a plurality of cutting assemblies 400, wherein the support assemblies 300 and the cutting assemblies 400 are connected to a controller, and the controller is configured to control the support assemblies 300 to provide rotation to a workpiece 200 and to control each cutting assembly 400 to cut the workpiece 200.

The supporting assembly 300 is used for providing supporting force for the workpiece 200, and each cutting assembly 400 is respectively corresponding to different cutting positions of the workpiece 200 and is used for cutting different positions of the workpiece 200.

The supporting members 300 are arranged on the base 100 at intervals, and the supporting members 300 are arranged in a straight line along the length direction of the workpiece 200 for supporting different portions of the workpiece 200.

The supporting assembly 300 comprises a supporting frame 310, wherein a supporting position for supporting the workpiece 200 is formed on the supporting frame 310; the supporting position is a connecting hole structure which is horizontally arranged.

The workpiece 200 is placed in the supporting position, and each cutting assembly 400 is located between two adjacent supporting frames 310 to cut the position between the two adjacent supporting frames 310.

When cutting, the workpiece 200 is supported by each support assembly 300, and the workpiece 200 can rotate on each support assembly 300 around its own axis, and each cutting assembly 400 cuts at the corresponding position of the workpiece 200 synchronously along with the rotation of the workpiece 200.

The cutting mode of multi-station simultaneous cutting is suitable for two modes of reciprocating cutting and annular cutting, in the cutting process, the workpiece 200 rotates, the cutting line 450 in the single cutting assembly 400 enters from one point of the workpiece 200 and penetrates through the center of the circular section of the workpiece 200 to form truncation, and the theoretical processing time of the single cutting assembly 400 is half of that of the traditional processing method.

The cutting assembly has the advantages that the cutting assembly 400 is utilized to simultaneously cut different positions of the workpiece 200, the process that a single cutting assembly is repeatedly lifted, cut and continuously fed is omitted, and the cutting efficiency is high and further.

The following describes in detail a cutting device and a wire cutting method according to this application, taking a circular cutting method as an example:

referring to fig. 3, in the circular cutting, each cutting assembly 400 includes a frame 410, a cutting wheel assembly rotatably connected to one side of the frame 410, and a cutting line 450 wound around each cutting wheel assembly.

The frame 410 is formed with an escape opening 411, and the cutting line 450 forms a cutting segment through the escape opening 411 for cutting the workpiece 200.

The cutting wheel group includes tension pulley 440 and at least one action wheel, and the cutting driving piece is connected to the action wheel, and the cutting driving piece is connected with the controller, and the switch of controller control cutting driving piece.

The tension pulley 440 is connected to the tensioning assembly for adjusting the position of the tension pulley 440 and thereby the tension of the cutting line 450.

The number of the driving wheels is at least one, and of course, two or more driving wheels may be provided, and when the number of the driving wheels is two, the first driving wheel 420 and the second driving wheel 430 are preferably disposed at both sides of the avoiding opening.

In some embodiments of the present application, in addition to the driving wheels, driven wheels and/or line tension detection wheels may be disposed in the cutting wheel set, the driven wheels provide auxiliary support for the cutting line 450, the driven wheels are rotatably connected to the frame 410, and the number of the driven wheels 230 is not limited; the line tension detecting wheel can detect the tension of the cutting line 450 so as to adjust the tension of the cutting line 450 in time.

Under the driving of the cutting wheel set, the cutting line 450 rotates at a high speed, and the workpiece 200 moving relative to each avoidance opening 411 is cut into multiple sections by the cutting line 450 synchronously.

Each of the drive wheels is individually driven by a cutting drive (not shown) and the controller controls the on and off of each cutting drive to provide power for movement of the cutting line 450.

The design of a plurality of action wheels can increase the driving capability to cutting line 450, and under the condition of equal feed speed, a plurality of action wheels reduce the broken string probability when comparing in the cutting of single action wheel, and the surface quality of cutting back silicon rod is good.

After the cutting assembly 400 finishes cutting, the cut workpiece 200 is detached from the corresponding support position.

The cutting assembly 400 may be horizontal or vertical, and in the horizontal state, the workpiece is located at the left side or the right side of the circular cutting line 450; in the upright state, the workpiece is positioned on the upper or lower side of the circular cutting line 450.

Accordingly, the opening of the avoiding opening 411 may be at the lower side or the lateral side of the supporting frame 310, and the relative movement between the supporting frame 310 and the cutting assembly 400 is vertical or horizontal.

The multi-bit line cutting apparatus will be described in detail by taking the relative movement between the supporting frame 310 and the cutting assembly 400 as a vertical movement, the position of the supporting frame 310 is fixed, and the up-and-down movement of the cutting assembly 400 as an example:

the avoiding opening 411 of each frame 410 is located at the bottom of the corresponding frame 410, the opening is downward, and before cutting, the workpiece 200 is fixed below the avoiding opening 411 through the supporting frame 310.

Along with the lifting movement of the cutting assembly 400, the avoiding opening 411 is lifted along with the lifting movement, and the workpiece 200 is cut into multiple sections at corresponding positions.

The lifting and lowering process of the cutting assembly 400 can be realized by a lifting mechanism (not shown), the lifting mechanism is also connected with the controller, and the lifting process is controlled by the controller, which is not the design focus of the present application and is not described herein again.

The plurality of cutting assemblies 400 are arranged, the workpiece 200 can be cut into a plurality of short workpieces at the same time, the process that a single cutting assembly 400 cuts repeatedly and feeds continuously is saved, and the cutting efficiency is high.

In addition, in the conventional cutting machine, the cutting line 450 is cut into the outer circumference of the workpiece 200, and during the cutting of the circular workpiece 200, as the cutting line 450 is fed deep into the workpiece 200, the contact length of the cutting line 450 with the workpiece 200 increases, and when the cutting line 450 is fed to reach the center of the workpiece 200, the maximum cutting length is reached, and the cutting load is the largest.

In order to ensure that the cutting load is relatively stable, it is usually necessary to technically control the feed rate at the cutting center, and when the cutting line 450 is fed beyond the center of the workpiece 200, the contact length gradually decreases as the feeding goes deep until the workpiece 200 is cut, and the cutting stroke needs to pass through the whole section of the workpiece 200.

In some embodiments of the present application, the workpiece 200 is combined with rotary cutting while achieving multi-station simultaneous cutting.

The workpiece 200 rotates under the action of the rotary driving assembly 330 to realize rotary cutting, so that the contact between the cutting line 450 and the workpiece 200 is changed from the existing line contact into point contact, the contact force and the cutting stroke are greatly reduced, the processing quality of the truncated end face is improved, and the processing time is shortened.

Referring to fig. 4-7, in particular, a sleeve 320 is rotatably connected to each supporting position of the supporting frame 310, and a rotary driving assembly 330 is connected to the outside of one sleeve 320, so that the workpiece 200 is controlled to rotate by the rotary driving assembly 330.

The rotary drive assembly 330 includes a drive member and a transmission 340.

To provide sufficient rotational power to the workpiece 300, a bushing 320 on each support bracket 310 is coupled to a rotary drive assembly 330.

In order to ensure the synchronism of the rotation of each cutting segment workpiece 200, the rotation driving components on each supporting frame 310 are connected with the controller, and in the processing process, the controller controls each rotation driving component 330 to move synchronously, so as to drive the shaft sleeves 320 on each supporting frame 310 to rotate, and further drive each cutting segment workpiece 200 to rotate synchronously.

Thus, when the workpiece 200 is cut off in multiple sections, each short workpiece can be driven by the independent rotation driving assembly 330 to rotate synchronously with the short workpiece in the adjacent section, so that the core breaking phenomenon caused by the connection and the breakage of the residual materials of the cutting seams between the short workpieces when the cutting is close to the breakage due to the asynchronous speed of the multiple short workpieces is avoided.

The transmission member 340 may be a belt or a speed reducer.

In order to realize the connection and the disassembly between the workpiece 200 and the shaft sleeve 320, a chuck 321 is arranged in the shaft sleeve 320, a hollow connecting part 322 is formed on the chuck 321, the workpiece 200 penetrates through the connecting part 322, the chuck 321 fixes the workpiece 200 on the shaft sleeve 320 to ensure the workpiece 200 and the shaft sleeve 320 to synchronously rotate, and after the machining is finished, the workpiece 200 is released to facilitate the disassembly.

Specifically, a fastening portion 323 is further formed in the connecting portion 322 of the chuck 321 for fastening the workpiece 200 in the connecting portion 322, the fastening portion 323 fastens and fixes the workpiece 200 to the chuck 321 in the cutting state, and after the machining is completed, the fastening portion 323 releases the workpiece 200.

The chuck 321 may be pneumatic, hydraulic, or electric.

In some embodiments of the present application, in order to increase the versatility of the multi-position line cutting apparatus, so that the workpiece 200 can be cut into short workpieces with different lengths according to requirements, both the supporting frame 310 and the frame 410 can be moved on the base 100.

Specifically, a moving rail (not shown) parallel to the axial direction of the workpiece 200 is formed on the base 100, a first guide portion (not shown) and a second guide portion (not shown) adapted to the moving rail are formed on each of the support frames 310 and the frames 410, and the positions of the support frames 310 and the frames 410 on the moving rail are adjusted according to the actual processing length by the support frames 310 and the frames 410.

The base 100 is also formed with a size indicator along the length direction of the moving rail to improve the accuracy of the position.

The multi-station line cutting device further comprises a feeding assembly, wherein the feeding assembly comprises a feeding driving part fixed on the base 100 and a feeding piece connected with the feeding driving part, the feeding is of a push rod structure, the feeding driving part drives a push rod to move along the axial direction of the workpiece 200, and the workpiece 200 is pushed to a target position from the supporting frame 310 on one side.

Before cutting, the feeding driving part shrinks the feeding piece to the shortest, the front end of the workpiece 200 is inserted on the support frame 310 which is closest to the position of the feeding driving part, and then the feeding piece is connected to the rear end of the workpiece 200.

The feeding driving part is opened to push the feeding piece to move forwards, the workpiece 200 is fed forwards along the axial direction of the feeding piece, the front end of the workpiece 200 sequentially passes through the connecting parts 322 of different support frames 310, and finally, the workpiece is stopped at a processing position.

In order to facilitate the feeding process of the workpiece 200, reduce wear and save the driving force during the feeding process, a rolling part is rotatably connected in the connecting part 322 along the feeding direction of the workpiece 200.

Before machining, the feeding assembly pushes the workpiece 200 to move in each connecting portion 322, and the rolling portion enables the feeding process of the workpiece 200 to be more convenient, reduces abrasion and saves driving force in the feeding process.

Referring to fig. 8, the method for cutting the multi-bit line is described in detail below:

s1: the work piece 200 to be cut is placed in a support position on each support assembly 300 and secured by a chuck 321.

S2: the cutting wire is adjusted and the tension of each cutting wire 450 is adjusted on each cutting assembly 400 using a tension pulley and tension assembly to achieve an optimal tension state.

S3: the controller controls the cutting drive on each cutting assembly 400 to be turned on; the driving wheel drives the cutting line 450 to move circularly at high speed, and the cooling liquid on the cutting assembly 400 is opened.

(in the process of reciprocating wire processing: the wire take-up/pay-off driving members rotate, and each driving member controls the corresponding cutting wire to reciprocate).

The controller controls the rotation driving assembly to be turned on, so as to drive the workpiece 200 to rotate on the supporting assembly 300 around the axis thereof.

S4: the controller controls the actions of the lifting mechanisms to drive the cutting assemblies to move downwards so as to cut different positions of the workpiece 200;

in the initial stage, each cutting assembly 400 is rapidly moved to a position close to the outer circumferential surface of the workpiece;

then slowly moving to the outer circumference of the contact workpiece to cut into the workpiece 200, after the workpiece is cut into a certain depth, which is usually 1-3mm, because the cutting perimeter of each cutting line 450 and the workpiece 200 is gradually reduced along with the diameter of the contact circle, the cutting load is gradually reduced, so that the downward moving speed of the cutting assembly 400 is gradually increased until the cutting line 450 moves to the point of the circle section to reach the theoretical maximum, and at this time, the workpiece 200 is cut off.

S5: after the workpiece 200 is cut, the controller controls the cutting assembly to move upwards for resetting, the position of the cutting line is reset at a higher speed from the position of the center of the workpiece, and the workpiece is withdrawn.

S6: the controller controls the cutting driving part and the rotary driving component to be shut down, the workpiece stops rotating, and the cooling liquid is shut down.

S7: detaching each cut piece 200 from the corresponding support assembly 300;

s8: the controller controls the feeding driving member to feed the workpiece 200 forwards into the supporting position of the supporting assembly 300 through the feeding member, and the next cutting is carried out until the workpiece is completely cut.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention, and therefore, the scope of the present invention shall be subject to the claims.

Claims (10)

1. A multi-bit line cutting apparatus, comprising:

a base;

the supporting components are connected to the base and comprise supporting frames, and supporting positions are formed in the supporting frames respectively and used for supporting workpieces;

the cutting assemblies are connected to the base and are respectively positioned between the adjacent support frames, each cutting assembly comprises a rack and a cutting wheel set for winding a cutting line to cut a workpiece, and the cutting wheel set is rotatably connected to one side of the rack; an avoidance port is formed on the frame;

a controller configured for controlling rotation of the workpiece and for controlling the cutting assembly switch.

2. The apparatus of claim 1, wherein the cutting device comprises a cutting device,

each supporting assembly further comprises a shaft sleeve which is overlapped with the axis of the workpiece and is rotatably connected in the corresponding supporting position, at least one rotary driving assembly is connected to the shaft sleeve and is used for driving the shaft sleeve to rotate and driving the workpiece to rotate, and the controller is connected with the rotary driving assembly.

3. The apparatus of claim 2, wherein the cutting device comprises a cutting device,

a chuck is connected in each shaft sleeve, a hollow connecting part is formed on each chuck, and the workpiece is positioned in the connecting part;

and a fastening part is also formed in the connecting part of the chuck and used for clamping the workpiece in the connecting part.

4. The apparatus of claim 2, wherein the cutting device comprises a cutting device,

the rotary driving assembly comprises a driving piece and a transmission piece, and the driving piece is connected with the shaft sleeve through the transmission piece.

5. The apparatus of claim 1, wherein the cutting device comprises a cutting device,

the base is provided with a movable track, and each support frame and each rack are respectively provided with a guide part matched with the movable track.

6. The multi-bit line cutting apparatus of claim 5,

and a size mark is formed on the base along the length direction of the moving track.

7. The apparatus of claim 2, wherein the cutting device comprises a cutting device,

the feeding assembly comprises a feeding driving part fixed on the base and a feeding piece connected with the feeding driving part, the feeding driving part is connected with the controller, and the feeding piece is detachably connected to the end part of the workpiece and used for driving the workpiece to be fed to a preset cutting position along the axial direction of the workpiece.

8. The apparatus of claim 1, wherein the cutting device comprises a cutting device,

a rolling part is rotatably connected in the connecting part along the feeding direction of the workpiece.

9. The apparatus of claim 1, wherein the cutting device comprises a cutting device,

the cutting wheel set comprises a tension wheel and at least one driving wheel, and the driving wheel is connected with a cutting driving piece; the tension wheel is connected with a tensioning assembly, and the tensioning assembly is used for adjusting the tension of the cutting line.

10. A wire cutting method comprising the multi-function wire cutting apparatus according to any one of claims 1 to 9, comprising the steps of:

placing a workpiece to be cut in a supporting position on each supporting assembly, and feeding the workpiece to a preset cutting position through a feeding assembly;

the controller controls the rotary driving component to drive the workpiece to rotate around the axis of the workpiece;

the controller controls each cutting wheel set to move, the cutting line rotating at high speed on each cutting wheel set generates relative motion with different positions of the workpiece, and cutting is carried out on different positions of the workpiece;

after the workpiece is cut, the controller controls each cutting assembly to reset, and the cutting line exits from the workpiece;

the controller controls the workpiece to stop rotating and controls the cutting line to stop moving;

and disassembling the cut workpiece.

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