CN114131769A

CN114131769A - Cutting device and method

Info

Publication number: CN114131769A
Application number: CN202111441279.3A
Authority: CN
Inventors: 仇健; 葛任鹏; 王鹏; 张善保; 吴仁标
Original assignee: Qingdao Gaoce Technology Co Ltd
Current assignee: Qingdao Gaoce Technology Co Ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-03-04

Abstract

The invention discloses a cutting device and a method, wherein a workpiece to be cut is placed on a base, the workpiece can rotate around the axis of the workpiece, a frame is arranged on the base, a cutting assembly is arranged on the frame, the cutting assembly comprises a gear train assembly and an annular cutting line which surrounds the gear train assembly, and the plane of the annular cutting line is vertical to the workpiece. The cutting line adopts the loop line form, and the cooperation work piece is rotatory, reaches the effect that improves cutting efficiency and cutting quality.

Description

Cutting device and method

Technical Field

The invention relates to the technical field of cutting, in particular to a self-rotating cutting device and method for a diamond wire single crystal silicon rod.

Background

The diamond wire cutting technology is an advanced cutting processing technology in the world at present, and the principle of the cutting processing technology is to cut a workpiece to be processed through a diamond wire moving at a high speed so as to achieve the purpose of cutting. The diamond wire is guided by the guide wheel, a wire mesh is formed between the two wire rollers, when the silicon rod is fixed, the silicon rod can be fed by the ascending and descending of the wire mesh, and the cutting force is generated by the reciprocating motion of the diamond wire, so that the silicon rod cutting process is completed.

The principle of cutting a silicon rod in the prior art is shown in fig. 1, wherein a silicon rod a is fixed on a crystal support b, and a cutting tool bit realizes feeding motion from top to bottom to cut the silicon rod a. The scheme mainly has the following problems: the diamond wire and the silicon rod are always in line contact, the cutting efficiency is low due to the large cutting length when the diamond wire is cut to the middle part of the silicon rod, and meanwhile, the cutting quality is poor due to the large cutting force; when the diamond wire is cut to the bottom end of the silicon rod, the silicon rod is easy to break off when the silicon rod is connected with the critical fracture in a gravity loading mode; the contact length of the diamond wire and the silicon rod is large, cutting liquid is not easy to enter, the cutting quality is poor, and meanwhile, the cutting length is continuously changed in the cutting process, so that the cutting quality consistency is poor.

In recent years, point contact cutting (the principle of point cutting is shown in fig. 3) of a diamond wire is rapidly developed, compared with a traditional line contact cutting mode (the principle of line cutting is shown in fig. 2), in the whole cutting process of point contact cutting, the contact length of a cutting line d and a silicon rod a in a contact area e is almost unchanged and is always approximate to point contact, and in the process of line contact cutting, the contact length of the cutting line d and the silicon rod a is always changed, so that the point contact cutting has outstanding cutting advantages, and the problem of poor cutting quality of a multi-blade cut silicon rod in the prior art can be avoided.

In the technical scheme disclosed in the prior patent application (application No. 202021097087.6, high-efficiency multi-blade cutting machine for workpiece rotation), the diamond wire is in the form of a monofilament, the movement processes of the monofilament diamond wire in the forward cutting and reverse cutting movement processes are acceleration-uniform speed-deceleration, and the cutting efficiency is directly reduced by the speed change of the diamond wire.

The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.

Disclosure of Invention

Aiming at the problems pointed out in the background technology, the invention provides a self-rotating cutting device and method for a silicon single crystal rod.

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

the present invention provides a cutting device comprising:

a base on which a workpiece to be cut is placed, the workpiece being rotatable about its own axis;

the frame is arranged on the base;

the cutting assembly is arranged on the rack and comprises a gear train assembly and an annular cutting line surrounding the gear train assembly, and the plane of the annular cutting line is vertical to the workpiece;

wherein relative motion is generated between the circular cutting line and the rotating workpiece to cut the workpiece.

In some embodiments of the present application, during cutting, the circular cutting line moves in a direction close to the workpiece, or the workpiece moves in a direction close to the circular cutting line to cut the workpiece.

In some embodiments of the present application, the gear train assembly is horizontal, and the workpiece is located on the left side or the right side of the circular cutting line;

or the gear train assembly is vertical, and the workpiece is positioned on the upper side or the lower side of the annular cutting line.

In some embodiments of the present application, the gear train assembly further comprises a tension control assembly for controlling the tightness of the endless cutting wire.

In some embodiments of the present application, the tension control assembly includes a tension pulley, the circular cutting line is wound on the tension pulley, the tension pulley is slidably disposed on a slide rail through a slide block, the slide rail is disposed on the rack, a fixing block is further disposed on the rack, and a spring is disposed between the slide block and the fixing block.

In some embodiments of this application, tension control subassembly includes the tension pulley, the circular cut line twine in on the tension pulley, the tension pulley slides through the slider and locates on the slide rail, the slide rail is located in the frame, still be equipped with the tight pulley in the frame, twine the tensioning rope on the tight pulley, the one end of tensioning rope with the slider is connected, the other end and the weight of tensioning rope are connected.

In some embodiments of the present application, the tension control assembly includes a tension pulley, the circular cutting line is wound on the tension pulley, one end of a swing rod is connected to the tension pulley, the other end of the swing rod is connected to a power output end of a driving motor, and the driving motor is disposed on the frame.

In some embodiments of the present application, the tension control assembly includes a tension pulley and a linear motor, the tension pulley is connected to a power output end of the linear motor, the linear motor is disposed on the rack, and the annular cutting line is wound on the tension pulley.

In some embodiments of the present application, the tension control assembly includes a tension pulley and a driving motor, the circular cutting line is wound on the tension pulley, the tension pulley is connected with the power output end of the driving motor, and the axis of the tension pulley is not coaxial with the axis of the power output end of the driving motor.

The invention also provides a cutting method, which comprises the following steps:

placing a workpiece to be cut on a placing part on a base, wherein the workpiece can rotate around the axis of the workpiece under the support of the placing part;

the cutting line is wound into a ring shape on the gear train assembly, the ring-shaped cutting line rotates at a high speed, and relative motion is generated between the ring-shaped cutting line rotating at the high speed and the workpiece rotating automatically so as to cut the workpiece.

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

this application carries out the rotation type cutting through the work piece of annular cut line pairing rotation, realizes the point contact cutting, can reach following beneficial effect:

the annular cutting line can keep high-speed rotary motion in the whole cutting process, so that the problem of cutting efficiency reduction caused by acceleration and deceleration in single-line cutting in the prior art is solved, and the cutting efficiency is greatly improved;

the point contact cutting mode ensures that the cutting area is small, the cutting force is reduced, the cutting line can cut by using larger tension, so that the cutting efficiency is improved, and the loss of a workpiece can be reduced by adopting a thinner cutting line;

the contact length of the cutting line and the workpiece is short, on one hand, when the same feeding speed is sampled, the arch of the cutting line is small, the cutting force is small, the numerical value of the cutting force is stable, the cutting quality is improved, the cutting length is unchanged in the cutting process, so that the cutting quality of the whole cutting surface is good in consistency, and on the other hand, the cutting efficiency can be improved due to the fact that the cutting length is short, the feeding speed can be increased;

the cutting liquid can reach the cutting area more easily, the cutting efficiency is improved, and the cutting quality is improved.

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

FIG. 1 is a schematic diagram of a diamond wire cutting principle according to the prior art;

FIG. 2 is a schematic diagram of a prior art single line cutting principle;

FIG. 3 is a schematic diagram of a loop wire cutting principle according to an embodiment;

FIG. 4 is a schematic structural view of a horizontal four-wheel linear cutting apparatus according to an embodiment;

FIG. 5 is a schematic structural diagram of a horizontal four-wheel-train diagonal cutting apparatus according to an embodiment;

FIG. 6 is a first structural schematic diagram of a vertical three-wheel linear cutting device according to an embodiment;

FIG. 7 is a second schematic structural view of a vertical three-gear-train linear cutting device according to an embodiment;

FIG. 8 is a schematic structural view of a vertical two-wheel-train miter cutting device according to an embodiment;

FIG. 9 is a schematic view of the spring tension control assembly shown in section A of FIG. 4;

FIG. 10 is a schematic view of the structure of FIG. 9 viewed from the opposite side;

FIG. 11 is a schematic view of the weighted tension control assembly shown in section B of FIG. 5;

FIG. 12 is a schematic perspective view of the structure shown in FIG. 11;

FIG. 13 is a schematic view of the swing link tension control assembly shown in section C of FIG. 6;

FIG. 14 is a schematic perspective view of the structure shown in FIG. 13;

FIG. 15 is a perspective view of the linear motor tension control assembly shown at D in FIG. 7;

FIG. 16 is a schematic view of the eccentric tension control assembly shown in section E of FIG. 8.

Reference numerals:

in fig. 1 to 3:

a-a silicon rod, b-a crystal support, c-a cutting tool bit, d-a cutting line and e-a contact area;

in fig. 4 to 15:

100-a base, 110-a placing part, 120-a first slideway;

200-rack, 210-first rack, 220-second rack, 230-second slide;

300-a workpiece;

400-wheel train assembly, 410-driving wheel, 420-first driven cutting wheel, 430-second driven cutting wheel, 440-tension wheel, 450-driving cutting wheel and 460-driven cutting wheel;

500-tension control component, 511-first slide rail, 512-first slide block, 513-fixed block, 514-spring, 521-second slide rail, 522-second slide block, 523-fixed wheel, 524-heavy hammer, 525-tension rope, 531-first driving motor, 532-swing rod, 541-linear motor and 551-second driving motor;

600-circular cut line, 610-cut line segment.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 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; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. 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 being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning 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. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

Example one

The present embodiment discloses a cutting device, referring to fig. 4, which includes a base 100, a frame 200, a cutting assembly, and so on.

The base 100 is fixed on a placing floor, and a work 300 to be cut is placed on the base 100.

The base 100 is provided with a frame 200, and the frame 200 is provided with a cutting assembly. The cutting assembly comprises a gear train assembly 400 and an annular cutting line 600 surrounding the gear train assembly 400, wherein the plane of the annular cutting line 600 is perpendicular to the workpiece 300 to be cut.

When cutting, the workpiece 300 performs a rotation motion around its own axis, and a relative motion is generated between the circular cutting line 600 and the rotating workpiece 300 to be cut to cut the workpiece 300.

This application carries out the rotation type cutting through the work piece 300 of annular cutting line 600 pairing rotation, realizes the point contact cutting, can reach following beneficial effect:

the annular cutting line 600 can keep high-speed rotary motion in the whole cutting process, so that the problem of cutting efficiency reduction caused by acceleration and deceleration in single-line cutting in the prior art is solved, and the cutting efficiency is greatly improved;

In some embodiments of the present application, the cutting wire may be a diamond wire.

In some embodiments, the circular cutting line 600 moves toward the workpiece 300 or the workpiece 300 moves toward the circular cutting line 600 to cut the workpiece.

That is, the circular cutting line 600 is moved in a direction close to the workpiece 300 by providing the moving structure while the position of the self-rotating workpiece 300 is not moved; or the position of the circular cutting line 600 is fixed, and the self-rotating workpiece 300 moves towards the direction close to the circular cutting line 600, so as to realize the relative close of the two, thereby completing the cutting.

In some embodiments of the present application, a placing portion 110 for placing a workpiece is disposed on the base 100, and the placing portion 110 supports the workpiece and drives the workpiece 300 to rotate. For the specific structure of the placing part 110, reference is made to the disclosure of "202021097087.6 a high-efficiency multi-blade cutting machine with workpiece rotating", and the detailed description is omitted in this embodiment.

In some embodiments of the present application, the gear train assembly 400 may have a four-wheel train structure, a three-wheel train structure, or a two-wheel train structure, which has a wider application range and a stronger applicability.

The four-wheel system can refer to fig. 4, which includes a driving wheel 410, a first driven cutting wheel 420, a second driven cutting wheel 430 and a tension wheel 440, wherein the circular cutting line 600 is wound around the driving wheel 410, the first driven cutting wheel 420, the second driven cutting wheel 430 and the tension wheel 440.

The three-wheel system can refer to fig. 6, which includes a driving cutting wheel 450, a driven cutting wheel 460 and a tension wheel 440, wherein the circular cutting line 600 surrounds the driving cutting wheel 450, the driven cutting wheel 460 and the tension wheel 440.

Two trains can be seen in fig. 8, which includes a driving cutter wheel 450 and a driven cutter wheel 460, with the circular cutting line 600 encircling the driving cutter wheel 450 and the driven cutter wheel 460. In the two-wheel system, the driven cutting wheel 460 acts simultaneously as a tension wheel.

For different gear train assemblies, in some embodiments of the present application, the gear train assembly can be horizontal or vertical.

Horizontal train assembly referring to fig. 4, the work piece 300 to be cut may be positioned on the left or right side of the circular cut line 600.

In some embodiments of the horizontal gear train assembly, the circular cutting line 600 is fixed, and the self-rotating workpiece 300 moves toward the direction close to the circular cutting line 600, so as to realize the relative movement of the two. Specifically, a horizontally extending slide (referred to as a first slide 120) is provided on the base 100, the placing portion 110 for placing the workpiece is slidably provided on the first slide 120, and the workpiece 300 is moved in a direction close to the circular cutting line 600 by the horizontal movement of the placing portion 110 along the first slide 120.

Of course, in other embodiments of the horizontal wheel train assembly, the workpiece 300 can be fixed by providing a moving structure, and the circular cutting line 600 can move toward the workpiece 300.

Vertical train Assembly referring to FIG. 6, the work piece 300 to be cut can be located on the upper or lower side of the circular cut line 600.

In some embodiments of the vertical gear train assembly, the relative movement between the two is achieved by moving the circular cutting line 600 toward the workpiece 300 while the workpiece 300 is not rotating. Specifically, referring to fig. 6, the rack 200 includes a first rack 210 and a second rack 220, the first rack 210 and the second rack 220 are slidably connected by a slide (referred to as a second slide 230), and the second rack 220 can move up and down along the second slide 230. The first frame 210 is fixedly connected to the base 100, and the wheel train assembly is disposed on the second frame 220, so that the circular cutting line 600 moves toward the workpiece 300 by the up-and-down movement of the second frame 220.

Of course, in other embodiments of the vertical train wheel assembly, the position of the circular cutting line 600 may be fixed by providing a moving structure, and the workpiece 300 may move in a direction close to the circular cutting line 600.

Still further, in some embodiments of the present application, the cutting line segment 610 of the circular cutting line 600 located between the two cutting wheels in the gear train assembly may extend vertically or obliquely in a vertical direction; or extend horizontally or obliquely in the horizontal direction.

Specifically, in the four wheel train, the cut line segment 610 is a cut line between the first slave cutting wheel 420 and the second slave cutting wheel 430; in the three and two trains, the line segment 610 is a cut line between the driving cutter wheel 450 and the driven cutter wheel 460.

The cutting line segment 610 extends vertically in the vertical direction (see fig. 4) or horizontally in the horizontal direction (see fig. 6), and is referred to as a straight cutting line.

The cutting line segment 610 extends obliquely in the vertical direction (refer to fig. 5) or obliquely in the horizontal direction (refer to fig. 7), and is called an oblique line type cutting line.

The stress direction of the horizontal oblique line type cutting line has a certain angle with the direction of the feeding force, the effect of offsetting a part of cutting force can be achieved by reasonably setting the oblique angle, and the capability of bringing cutting fluid into the horizontal cutting line in an assisting manner is better.

In some embodiments of the present application, the wheel train assembly further includes a tension control assembly 500 for controlling the tension of the circular cutting line 600, so that the circular cutting line 600 can maintain a better tension, which helps to improve the cutting efficiency and the cutting effect.

This embodiment provides five types of implementation structures of the tension control assembly 500, which are described below.

The first configuration of the tension control assembly 500, referring to fig. 9 and 10, is a tension control assembly employing springs.

The spring type tension control assembly comprises a tension wheel 440, the annular cutting line 600 is wound on the tension wheel 440, the tension wheel 440 is arranged on a sliding rail (marked as a first sliding rail 511) in a sliding mode through a sliding block (marked as a first sliding block 512), the first sliding rail 511 is fixedly arranged on the rack 200, a fixed block 513 is further arranged on the rack 200, and a spring 514 is arranged between the first sliding block 512 and the fixed block 513.

When the tension of the circular cutting line 600 changes, the spring 514 is forced to drive the tension wheel 440 to move along the first sliding rail 511, so that the circular cutting line 600 is always kept in a tensioned state.

The spring type tension control assembly is simple in structure and low in cost.

Fig. 4 is a schematic diagram of the spring type tension control assembly 500 applied to the horizontal four-wheel cutting device.

The second structure of the tension control assembly 500, referring to fig. 11 and 12, is a tension control assembly using a weight.

The weight type tension control assembly comprises a tension wheel 440, an annular cutting line 600 is wound on the tension wheel 440, the tension wheel 440 is arranged on a sliding rail (marked as a second sliding rail 521) in a sliding mode through a sliding block (marked as a second sliding block 522), the second sliding rail 521 is arranged on the rack 200, a fixed wheel 523 is further arranged on the rack 200, a tension rope 525 is wound on the fixed wheel 523, one end of the tension rope 525 is connected with the second sliding block 522, and the other end of the tension rope 525 is connected with a weight 524.

When the tension of the circular cutting line 600 changes, the weight 524 drives the tension pulley 440 to move along the second sliding rail 521, and the tension of the weight 524 and the tension of the circular cutting line 600 are balanced again, so that the circular cutting line 600 is always kept in a tensioned state.

The weight type tension control assembly is simple in structure, stable in tension and low in cost.

Fig. 5 is a schematic diagram of the weight type tension control assembly applied to a horizontal four-wheel cutting device.

The third structure of the tension control assembly 500, referring to fig. 13 and 14, is a tension control assembly using a rocker lever.

The swing link type tension control assembly comprises a tension wheel 440, the annular cutting line 600 is wound on the tension wheel 440, one end of a swing link 532 is connected with the tension wheel 440, the other end of the swing link 532 is connected with a power output end of a driving motor (marked as a first driving motor 531), and the first driving motor 531 is arranged on the rack 200.

When the tension of the circular cutting line 600 changes, the swing link 532 is driven by the first driving motor 531 to swing, so as to drive the tension pulley 440 to generate displacement to adjust the tension of the circular cutting line 600.

The swing rod type tension control assembly is high in control precision and easy to realize automation.

Fig. 6 is a schematic structural diagram of a pendulum bar type tension control assembly applied to a vertical three-wheel cutting device.

The fourth configuration of the tension control assembly 500, referring to fig. 15, is a tension control assembly employing a linear motor.

The linear motor type tension control assembly comprises a tension pulley 440 and a linear motor 541, the tension pulley 440 is connected with a power output end of the linear motor 541, the linear motor 541 is arranged on the rack 200, and the annular cutting line 600 is wound on the tension pulley 440.

The linear motor 541 outputs a constant force, and when the tension of the circular cutting line 600 is changed, the tension pulley 440 moves to adjust the tension of the circular cutting line 600, so that the tension of the circular cutting line 600 is balanced with the constant force output by the linear motor 541.

The linear motor type tension control assembly outputs a constant force in the linear direction, so that the annular cutting line 600 is more stable in the cutting process, and the cutting quality is better.

Fig. 7 is a schematic structural diagram of a linear motor type tension control assembly 500 applied to a vertical three-wheel cutting device.

The fifth configuration of the tension control assembly 500, referring to FIG. 16, is a tension control assembly employing an eccentric configuration.

The eccentric tension control assembly 500 comprises a tension pulley 440 and a driving motor (denoted as a second driving motor 551), the circular cutting line 600 is wound on the tension pulley 440, the tension pulley 440 is connected with the power output end of the second driving motor 551, and the axis of the tension pulley 440 is not coaxial with the axis of the power output end of the second driving motor 551.

When the tension of the annular cutting line 600 changes, the second driving motor 551 outputs a certain torque to drive the cutting wheel to move, so that the output torque of the second driving motor 551 and the tension of the annular cutting line 600 keep balance, and the purpose of tensioning the annular cutting line 600 is achieved.

Compared with other tension control assemblies, the eccentric tension control assembly has one less wheel, the gear train is simple, and the eccentric shaft tension control assembly is compact in structure and small in occupied space.

FIG. 8 is a schematic diagram of an eccentric tension control assembly applied to a vertical two-wheel cutting device. In the two-wheel system, the tension wheel 440 is the driven cutting wheel 460.

The five tension control assemblies 500 can be applied to different gear train structures such as a four-gear train, a three-gear train and a two-gear train, and the drawings of the present application show only a few specific examples.

Example two

The embodiment discloses a cutting method, which comprises the following steps:

referring to fig. 4, a work to be cut, 300, is placed on the placing part 110 on the base 100, the work 300 being rotatable about its own axis by the support of the placing part 110;

the cutting line is wound into a ring shape on the wheel train assembly, the ring-shaped cutting line 600 rotates at a high speed, and the relative motion is generated between the ring-shaped cutting line 600 rotating at the high speed and the workpiece 300 rotating automatically so as to cut the workpiece.

This application carries out the rotation type cutting through the work piece 300 of annular cutting line 600 pairing rotation, realizes the point contact cutting, and annular cutting line 600 can both keep high-speed slewing motion at whole cutting process, has avoided among the prior art problem that the cutting efficiency reduces because of the acceleration and deceleration arouses, improves cutting efficiency greatly.

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 description is only for the 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. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A cutting device, comprising:

the frame is arranged on the base;

2. The cutting device of claim 1,

when cutting, the annular cutting line moves towards the direction close to the workpiece, or the workpiece moves towards the direction close to the annular cutting line so as to cut the workpiece.

3. The cutting device of claim 1,

the gear train assembly is horizontal, and the workpiece is positioned on the left side or the right side of the annular cutting line;

4. The cutting device according to any one of claims 1 to 3,

the gear train assembly further comprises a tension control component for controlling the annular cutting line tension degree.

5. The cutting device of claim 4,

the tension control assembly comprises a tension wheel, the annular cutting line is wound on the tension wheel, the tension wheel is arranged on a sliding rail in a sliding mode through a sliding block, the sliding rail is arranged on the rack, a fixed block is further arranged on the rack, and a spring is arranged between the sliding block and the fixed block.

6. The cutting device of claim 4,

the tension control subassembly includes the tension pulley, the circular cut line twine in on the tension pulley, the tension pulley slides through the slider and locates on the slide rail, the slide rail is located in the frame, still be equipped with the tight pulley in the frame, the winding tensioning rope on the tight pulley, the one end of tensioning rope with the slider is connected, the other end and the weight of tensioning rope are connected.

7. The cutting device of claim 4,

the tension control assembly comprises a tension wheel, the annular cutting line is wound on the tension wheel, one end of a swing rod is connected with the tension wheel, the other end of the swing rod is connected with a power output end of a driving motor, and the driving motor is arranged on the rack.

8. The cutting device of claim 4,

the tension control assembly comprises a tension wheel and a linear motor, the tension wheel is connected with the power output end of the linear motor, the linear motor is arranged on the rack, and the annular cutting line is wound on the tension wheel.

9. The cutting device of claim 4,

the tension control assembly comprises a tension wheel and a driving motor, the annular cutting line is wound on the tension wheel, the tension wheel is connected with the power output end of the driving motor, and the axis of the tension wheel is not coaxial with the axis of the power output end of the driving motor.

10. A method of cutting, comprising: