Cutting device

Abstract

The invention provides a cutting device. A cutting piece is connected with a main body piece; the clamping assembly and the supporting piece are located on the side, away from the to-be-cut piece, of the cutting piece. The clamping assembly is arranged on the main body piece; the clamping part of the clamping assembly has a clamping state of clamping the supporting piece and a loosening state of being separated from the supporting piece; the supporting piece and the cutting piece are oppositely arranged, so that at least part of the supporting piece has a supporting state of being embedded in the cutting seam after the cutting seam is cut by the cutting piece; the main body piece and the clamping assembly are both arranged in a manner of avoiding a to-be-cut piece. The main body piece is movably arranged in the direction close to the to-be-cut piece so as to move to the first position where at least part of the supporting piece can be in the supporting state and the clamping part can be in the clamping state or the second position where at least part of the supporting piece can be in the supporting state and the clamping part can be in the loosening state. By means of the technical scheme, the technical problem that in the prior art, a diamond wire saw cutting piece is prone to being clamped in a kerf can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting devices, and in particular to a cutting device. Background Art

[0002] At present, diamond wire saw cutting is mainly used in the fields of oil extraction and transportation, cutting and repairing of submarine pipelines, cutting of columns when platforms are abandoned, and cutting of wind power pile legs.

[0003] However, when performing horizontal cutting of a vertical pipe string, when the pipe string is about to be cut, the cut slit will shrink due to the weight of the upper pipe string, thereby forming a clamping force on the cutting rope. The cutting rope will stop circulating because it is difficult to overcome the clamping force generated by the weight of the upper pipe string, thereby affecting the normal progress of the cutting operation. Summary of the invention

[0004] The main purpose of the present invention is to provide a cutting device to solve the technical problem in the prior art that the cutting piece of the diamond wire saw is easily stuck in the cutting seam.

[0005] In order to achieve the above object, the present invention provides a cutting device, comprising:

[0006] A main body and a cutting piece, wherein the cutting piece is connected to the main body;

[0007] The clamping assembly and the support member are both located on a side of the cutting member away from the member to be cut; the clamping assembly is arranged on the main member; the clamping portion of the clamping assembly has a clamping state of clamping the support member and a loose state of being separated from the support member; the support member is arranged opposite to the cutting member, so that at least a part of the support member has a supporting state of being embedded in the cutting slit after the cutting member cuts a cutting slit;

[0008] Among them, the main body and the clamping assembly are both arranged to avoid the workpiece to be cut; the main body is movably arranged in a direction close to the workpiece to be cut, so as to move to a first position in which at least a portion of the support member is in a supporting state and the clamping portion is in a clamping state, or to a second position in which at least a portion of the support member is in a supporting state and the clamping portion is in a loose state.

[0009] Further, the clamping assembly includes a connecting portion connected to the clamping portion, and the connecting portion is movably arranged on the main body; and / or,

[0010] The clamping portion comprises a first clamping member and a second clamping member connected to each other, and at least one of the first clamping member and the second clamping member is movably arranged so that the clamping end of the first clamping member and the clamping end of the second clamping member are moved closer to or farther from each other.

[0011] Furthermore, the cutting device further comprises:

[0012] The shaft column is inserted in the main body, and at least part of the shaft column protrudes from the main body; at least part of the shaft column is used to be inserted in the mounting hole of the clamping assembly so that the clamping assembly can rotate relative to the shaft column.

[0013] Further, the support member is a wedge-shaped pad; and / or,

[0014] The supporting member comprises an embedding portion and a supporting portion which are connected to each other, the thickness of the embedding portion is less than or equal to the thickness of the cutting member, and the thickness of the supporting portion is greater than the thickness of the cutting member.

[0015] Furthermore, the cutting device further comprises:

[0016] The mounting piece is used for fixed connection with the piece to be cut; the main body piece is arranged on the mounting piece.

[0017] Furthermore, a first guide portion extending along a first preset direction is provided on the mounting member, and a second guide portion guidingly matched with the first guide portion is provided on the main body member, so that the main body member can be moved along the first preset direction.

[0018] Furthermore, the cutting member is a cutting rope, and the cutting device further comprises a plurality of guide wheels, which are arranged on the main body at intervals along the outer edge of the main body, and the cutting rope loops are arranged on the plurality of guide wheels so that the cutting rope is in a tensioned state;

[0019] Wherein, the guide wheels are rotatably arranged so that the cutting rope circulates around the plurality of guide wheels; and / or,

[0020] The cutting device also includes a driving member, a driving end of which is drivingly connected to at least one of the plurality of guide wheels so that at least one of the plurality of guide wheels can rotate.

[0021] Furthermore, the main body is provided with an avoidance opening groove for avoiding the piece to be cut, the cutting piece is arranged at the notch of the avoidance opening groove, and the support piece is arranged between the groove bottom and the notch of the avoidance opening groove;

[0022] Wherein, along the direction from the groove bottom to the groove mouth, the depth of the avoidance opening groove is greater than the length of the piece to be cut; and / or,

[0023] Along the direction from the groove bottom to the groove opening, the distance between the supporting member and the cutting member is smaller than the length of the member to be cut.

[0024] Furthermore, the main body comprises:

[0025] A first main body portion and a second main body portion connected to each other, wherein at least a portion of the first main body portion and at least a portion of the second main body portion are spaced apart and arranged opposite to each other to form an avoidance opening slot;

[0026] There are at least two clamping parts, one of the at least two clamping parts is arranged on the first main body part, the other of the at least two clamping parts is arranged on the second main body part, and one of the at least two clamping parts and the other are arranged opposite to each other.

[0027] Furthermore, the cutting device further comprises:

[0028] A position detection member is arranged on the main body, a detection end of the position detection member is arranged toward the support member, and the position detection member is used to detect the position of the support member;

[0029] The control member is used to drive the clamping part to move so that the clamping part moves to a clamped state or a loosened state. The position detection member is connected to the control member so that when the position detection member detects that the supporting member is in a supporting state, the clamping part is in a loosened state.

[0030] By applying the technical solution of the present invention, after the cutting piece cuts a cutting slit on the piece to be cut, the cutting slit will not become smaller under the influence of external force by embedding the support piece in the cutting slit. The size of the cutting slit is guaranteed by the setting of the support piece, thereby avoiding the situation where the cutting piece is stuck in the cutting slit and cannot continue cutting. In addition, by setting the two states of the clamping assembly, it can be ensured that the support piece will not slip in the cutting slit due to the force of the clamping assembly, thereby ensuring the supporting effect of the support piece. Therefore, the technical solution of the present invention can solve the technical problem in the prior art that the diamond wire saw cutting piece is easily stuck in the cutting slit. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0032] Figure 1 It shows a schematic structural diagram of a cutting device provided according to the first embodiment of the present invention;

[0033] Figure 2 A schematic structural diagram of a cutting device provided in accordance with the first embodiment of the present invention from another angle is shown;

[0034] Figure 3 A schematic structural diagram of a cutting device provided in accordance with the first embodiment of the present invention at another angle is shown;

[0035] Figure 4 It shows a schematic structural diagram of a clamping assembly of a cutting device provided in accordance with the first embodiment of the present invention;

[0036] Figure 5 A schematic structural diagram of a support member of a cutting device provided according to a first embodiment of the present invention is shown.

[0037] The above drawings include the following reference numerals:

[0038] 10. main body; 11. avoidance opening groove; 111. notch; 112. groove bottom; 12. first main body; 13. second main body;

[0039] 20. Cutting pieces;

[0040] 30. Clamping assembly; 31. Clamping portion; 311. First clamping member; 312. Second clamping member; 32. Connecting portion; 33. Shaft column; 34. Mounting hole; 35. Spring member;

[0041] 40. support member; 41. embedded portion; 42. support portion;

[0042] 50. Mounting parts;

[0043] 60. Guide wheel;

[0044] 70. Parts to be cut. DETAILED DESCRIPTION

[0045] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0046] like Figures 1 to 5 As shown, the first embodiment of the present invention provides a cutting device, which includes a main body 10 and a cutting member 20, and the cutting member 20 is connected to the main body 10. The cutting device also includes a clamping assembly 30 and a support member 40, both of which are located on the side of the cutting member 20 away from the member to be cut 70; the clamping assembly 30 is arranged on the main body 10; the clamping portion 31 of the clamping assembly 30 has a clamping state of clamping the support member 40 and a loose state of being separated from the support member 40; the support member 40 is arranged opposite to the cutting member 20, so that at least a part of the support member 40 has a supporting state of being embedded in the cutting slit after the cutting member 20 cuts a cutting slit. Among them, the main body 10 and the clamping assembly 30 are both arranged to avoid the workpiece 70 to be cut; the main body 10 is movably arranged in a direction close to the workpiece 70 to be cut, so as to move to a first position in which at least a portion of the support member 40 is in a supporting state and the clamping portion 31 is in a clamping state, or to a second position in which at least a portion of the support member 40 is in a supporting state and the clamping portion 31 is in a loose state.

[0047] By using the cutting device provided in the first embodiment of the present invention, after the cutting piece 20 cuts a cutting slit on the piece to be cut 70, the support piece 40 can be embedded in the cutting slit so that the cutting slit will not become smaller under the influence of external force. The size of the cutting slit is ensured by the setting of the support piece 40, thereby avoiding the situation where the cutting piece 20 is stuck in the cutting slit and cannot continue cutting. In addition, by setting the two states of the clamping assembly 30, it can be ensured that the support piece 40 will not slip in the cutting slit due to the force of the clamping assembly 30, thereby ensuring the supporting function of the support piece 40. Therefore, the cutting device provided in this embodiment can solve the technical problem in the prior art that the diamond wire saw cutting piece is easily stuck in the cutting slit.

[0048] Specifically, the cutting member 20 is a diamond wire saw cutting wire. In this way, since the diamond wire saw cutting wire needs to cut the object by moving back and forth or rotating in a circular motion, the arrangement of the scheme of this embodiment can better avoid the problem that the diamond wire saw cutting wire is stuck in the cutting seam and cannot move back and forth or rotate in a circular motion, thereby better ensuring the cutting effect.

[0049] Specifically, the piece to be cut 70 is a column structure. The column structure is extended in the vertical direction. Specifically, the cutting piece 20 is used to perform horizontal cutting on the piece to be cut 70.

[0050] Specifically, the main body 10 is movably arranged in a direction close to the workpiece 70 to be cut, so that the main body 10 first moves to a first position where at least a portion of the support member 40 is in a supporting state and the clamping portion 31 is in a clamping state, and then moves to a second position where at least a portion of the support member 40 is in a supporting state and the clamping portion 31 is in a loose state. With such a structural arrangement, the two states of the clamping assembly 30 can be set to ensure that the support member 40 will not slip in the cutting seam due to the force of the clamping assembly 30, thereby ensuring the supporting function of the support member 40.

[0051] Specifically, Figure 1 , the cutting device is in a preparatory cutting state, at which time the cutting member 20 has not yet cut the member 70 to be cut. Figure 2 , the state of the cutting device in cutting is shown, at which time the support member 40 has just been embedded in the cutting seam, the support member 40 is in a supporting state, and the clamping portion 31 is in a clamping state. Figure 3 FIG. 3 shows the state where the cutting device has completed cutting. At this time, the support member 40 is still embedded in the cutting seam, the support member 40 is in a supporting state, and the clamping portion 31 is in a loose state to avoid interference with the cutting.

[0052] Specifically, the clamping assembly 30 includes a connecting portion 32 connected to the clamping portion 31, and the connecting portion 32 is movably arranged on the main body 10. With such an arrangement, it is possible to facilitate the avoidance of the to-be-cut member 70 through the movement of the connecting portion 32.

[0053] Specifically, the clamping portion 31 includes a first clamping member 311 and a second clamping member 312 connected to each other, and at least one of the first clamping member 311 and the second clamping member 312 is movably arranged so that the clamping end of the first clamping member 311 and the clamping end of the second clamping member 312 are moved closer to or farther from each other. With such a structural arrangement, it is easier to clamp the support member 40 through the arrangement of the first clamping member 311 and the second clamping member 312, thereby driving the support member 40 to move together.

[0054] Specifically, the first clamping member 311 and the second clamping member 312 are connected by the spring member 35. With such a configuration, the clamping end of the first clamping member 311 and the clamping end of the second clamping member 312 can be brought close to each other through the elastic action of the spring member 35, thereby facilitating the clamping of the support member 40.

[0055] In this embodiment, the cutting device further includes a shaft column 33, which is inserted into the main body 10, and at least a portion of the shaft column 33 protrudes from the main body 10; at least a portion of the shaft column 33 is used to be inserted into the mounting hole 34 of the clamping assembly 30, so that the clamping assembly 30 can rotate relative to the shaft column 33. With such a structural arrangement, the clamping assembly 30 can be rotated relative to the shaft column 33 through the arrangement of the shaft column 33, thereby facilitating the avoidance of the object 70 to be cut.

[0056] Specifically, the support member 40 is a wedge-shaped pad. With such a structural arrangement, the thinner portion of the wedge-shaped pad is conveniently embedded in the cutting seam, while the thicker portion of the wedge-shaped pad can support the cutting seam.

[0057] Specifically, along the height direction of the workpiece 70 to be cut, the minimum thickness of the side of the support member 40 close to the cutting member 20 is less than or equal to the thickness of the cutting member 20; the thickness of the side of the support member 40 away from the cutting member 20 is greater than the thickness of the side of the support member 40 close to the cutting member 20. With such a structural arrangement, the side of the support member 40 close to the cutting member 20 can be embedded in the cutting slit cut by the cutting member 20, and the side of the support member 40 away from the cutting member 20 can support the cutting slit, so that a certain distance can be maintained between the cut parts, and the cutting member 20 is prevented from being stuck in the cutting slit.

[0058] Specifically, the support member 40 includes an embedding portion 41 and a supporting portion 42 connected to each other, the thickness of the embedding portion 41 is less than or equal to the thickness of the cutting member 20, and the thickness of the supporting portion 42 is greater than the thickness of the cutting member 20. With such a structural arrangement, the support member 40 can be embedded in the cutting slit through the embedding portion 41, and the cutting slit is supported by the supporting portion 42, so that the spacing between the cut parts can be greater than the thickness of the cutting member 20, thereby better ensuring smooth cutting of the cutting member 20.

[0059] In this embodiment, the cutting device further includes a mounting member 50, which is used to be fixedly connected to the workpiece 70 to be cut; the main body 10 is arranged on the mounting member 50. With such a structural arrangement, it is convenient to fix the cutting device to the workpiece 70 to be cut through the mounting member 50, so as to facilitate positioning of the position to be cut and ensure the cutting accuracy.

[0060] Specifically, the mounting member 50 is provided with a first guide portion extending along a first preset direction, and the main member 10 is provided with a second guide portion guidingly matched with the first guide portion, so that the main member 10 can move along the first preset direction. With such a structural setting, the main member 10 can move along a fixed direction through the guiding match between the first guide portion and the second guide portion, thereby preventing the deviation of the moving direction from affecting the cutting effect of the cutting member 20 and the supporting effect of the supporting member 40.

[0061] Specifically, in order to facilitate the setting of the structure, one of the first guide portion and the second guide portion is a guide block, and the other of the first guide portion and the second guide portion is a guide groove.

[0062] Specifically, the cutting member 20 is a cutting rope, and the cutting device further includes a plurality of guide wheels 60, which are arranged on the main member 10 at intervals along the outer edge of the main member 10, and the cutting rope loop is arranged on the plurality of guide wheels 60, so that the cutting rope is in a tensioned state. The guide wheels 60 are rotatably arranged so that the cutting rope circulates around the plurality of guide wheels 60. With such a structural arrangement, the cutting rope can be in a circulatory rotation state through the arrangement of the guide wheels 60, so that the member 70 to be cut can be cut.

[0063] Specifically, the cutting member 20 is a cutting rope, and the cutting device further includes a plurality of guide wheels 60, which are arranged on the main body 10 at intervals along the outer edge of the main body 10, and the cutting rope loop is arranged on the plurality of guide wheels 60, so that the cutting rope is in a tensioned state. The cutting device further includes a driving member, and the driving end of the driving member is drivingly connected to at least one of the plurality of guide wheels 60, so that at least one of the plurality of guide wheels 60 can rotate. With such a structural arrangement, the guide wheel 60 can be driven to rotate by the driving member, thereby driving the cutting rope to enter a state of circulating rotation, thereby improving the operating convenience of the cutting device.

[0064] In this embodiment, the main body 10 is provided with an avoidance opening groove 11 for avoiding the piece to be cut 70, the cutting piece 20 is arranged at the notch 111 of the avoidance opening groove 11, and the support member 40 is arranged between the groove bottom 112 and the notch 111 of the avoidance opening groove 11. Among them, along the direction from the groove bottom 112 to the notch 111, the depth of the avoidance opening groove 11 is greater than the length of the piece to be cut 70. With such a structural setting, the piece to be cut 70 can be avoided by setting the avoidance opening groove 11, avoiding interference with the piece to be cut 70 to affect the normal cutting. In addition, the setting that the depth of the avoidance opening groove 11 is greater than the length of the piece to be cut 70 can ensure that the cutting piece 20 can achieve complete cutting of the piece to be cut 70 along the direction from the groove bottom 112 to the notch 111, avoiding the situation where the cutting piece 20 cannot cut through.

[0065] Specifically, the main body 10 is provided with an avoidance opening groove 11 for avoiding the workpiece 70 to be cut, the cutting piece 20 is arranged at the notch 111 of the avoidance opening groove 11, and the support member 40 is arranged between the groove bottom 112 and the notch 111 of the avoidance opening groove 11. In the direction from the groove bottom 112 to the notch 111, the distance between the support member 40 and the cutting piece 20 is less than the length of the workpiece 70 to be cut. With such a structural setting, the support member 40 can play a supporting role in time by setting the distance between the support member 40 and the cutting piece 20 to be less than the length of the workpiece 70 to be cut, thereby avoiding the situation that the support member 40 has not been embedded in the cutting seam after the cutting piece 20 has completed cutting, thereby avoiding the failure of the support member 40.

[0066] Specifically, the main body 10 includes a first main body 12 and a second main body 13 connected to each other, and at least a portion of the first main body 12 and at least a portion of the second main body 13 are spaced and arranged relative to each other to form an avoidance opening groove 11. Among them, there are at least two clamping parts 31, one of the at least two clamping parts 31 is arranged on the first main body 12, and the other of the at least two clamping parts 31 is arranged on the second main body 13, and one of the at least two clamping parts 31 is arranged relative to the other. With such a structural arrangement, the avoidance opening groove 11 can be formed by the arrangement of the first main body 12 and the second main body 13, and the support member 40 can be better clamped by the arrangement of the two clamping parts 31, so that it is convenient to reach the first position and the second position successively more stably and efficiently during the movement of the main body 10.

[0067] In the second embodiment of the present invention, the cutting device further comprises a position detection member and a control member. The position detection member is arranged on the main body 10, and the detection end of the position detection member is arranged toward the support member 40. The position detection member is used to detect the position of the support member 40. The control member is used to drive the clamping part 31 to move so that the clamping part 31 moves to a clamped state or a loosened state. The position detection member is connected to the control member so that when the position detection member detects that the support member 40 is in a supported state, the clamping part 31 is in a loosened state. Such a setting is adopted to improve the intelligent operation of the cutting device. The position detection member is used to judge whether the support member 40 enters the supported state. When the support member 40 is detected to enter the supported state, the clamping part 31 is promptly controlled to be in a loosened state through the control member, so as to ensure the stable support of the support member 40 in the cutting seam, avoid the possibility that the support member 40 continues to move under the drive of the clamping assembly 30, and ensure the stability of the use of the cutting device.

[0068] Specifically, the clamping assembly 30 is connected to the main body 10 through the shaft column 33 and moves forward with the cutting piece 20. When the wedge-shaped pad reaches the cutting slot position of the rope saw, the front end of the wedge-shaped pad enters the cutting slot, but the rear end of the wedge-shaped pad is stuck in the cutting slot because it is thicker than the front end. Under the weight of the upper pipe column being cut, the wedge-shaped pad cannot continue to move forward with the cutting piece 20, and the clamping assembly 30 continues to move forward with the cutting piece 20. At this time, a pulling force is generated between the wedge-shaped pad and the clamping assembly 30, and the wedge-shaped pad overcomes the pressure of the spring member 35 and separates from the clamping assembly 30. At the same time as the wedge-shaped pad and the clamping assembly 30 separate from each other, the clamping assembly 30 rotates around the shaft column 33, thereby clearing the forward path of the main body 10 and preventing the clamping assembly 30 from interfering with the pipe column and affecting the movement of the cutting piece 20. When the pipe string is about to be cut, the weight of the upper pipe string will act on the wedge-shaped pad, thereby preventing the cutting distance from being reduced and preventing the cutting member 20 from being stuck.

[0069] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0070] 1. Effectively prevent the wire saw from getting stuck during the cutting process, ensuring high-speed cutting operations;

[0071] 2. The wedge-shaped pad automatically falls off and blocks the pipe string cut without the need for external equipment assistance;

[0072] 3. The structure is simple, and only a simple modification is needed to the rope saw structure in the prior art, so the cost is low.

[0073] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0074] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0075] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0076] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0077] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cutting device, It is characterized in that include: A main body (10) and a cutting piece (20), wherein the cutting piece (20) is connected to the main body (10); The clamping assembly (30) and the supporting member (40) are both located on a side of the cutting member (20) away from the member to be cut; the clamping assembly (30) is arranged on the main member (10); the clamping portion (31) of the clamping assembly (30) has a clamping state of clamping the supporting member (40) and a loose state of being separated from the supporting member (40); the supporting member (40) is arranged opposite to the cutting member (20) so that after the cutting member (20) cuts a cutting slit, at least a portion of the supporting member (40) has a supporting state of being embedded in the cutting slit; Wherein, the main body (10) and the clamping assembly (30) are both arranged to avoid the workpiece to be cut; the main body (10) is movably arranged in a direction close to the workpiece to be cut, so as to move to a first position in which at least a portion of the support member (40) is in the supporting state and the clamping portion (31) is in the clamping state, or to a second position in which at least a portion of the support member (40) is in the supporting state and the clamping portion (31) is in the loosened state.

2. The cutting device according to claim 1, It is characterized in that The clamping assembly (30) comprises a connecting portion (32) connected to the clamping portion (31), and the connecting portion (32) is movably arranged on the main body (10); and / or, The clamping portion (31) comprises a first clamping member (311) and a second clamping member (312) which are connected to each other, and at least one of the first clamping member (311) and the second clamping member (312) is movably arranged so that the clamping end of the first clamping member (311) and the clamping end of the second clamping member (312) can be moved closer to or farther from each other.

3. The cutting device according to claim 1, It is characterized in that The cutting device also includes: A shaft column (33) is inserted into the main body (10), and at least a portion of the shaft column (33) protrudes from the main body (10); at least a portion of the shaft column (33) is used to be inserted into the mounting hole (34) of the clamping assembly (30) so that the clamping assembly (30) can rotate relative to the shaft column (33).

4. The cutting device according to claim 1, It is characterized in that The support member (40) is a wedge-shaped pad; and / or, The support member (40) comprises an embedded portion (41) and a support portion (42) which are connected to each other, the thickness of the embedded portion (41) is less than or equal to the thickness of the cutting member (20), and the thickness of the support portion (42) is greater than the thickness of the cutting member (20).

5. The cutting device according to claim 1, It is characterized in that The cutting device also includes: The mounting member (50) is used for being fixedly connected to the piece to be cut; the main body (10) is arranged on the mounting member (50).

6. The cutting device according to claim 5, It is characterized in that The mounting member (50) is provided with a first guide portion extending along a first preset direction, and the main body (10) is provided with a second guide portion cooperating with the first guide portion so that the main body (10) can move along the first preset direction.

7. The cutting device according to claim 1, It is characterized in that The cutting member (20) is a cutting rope, and the cutting device further comprises a plurality of guide wheels (60), wherein the plurality of guide wheels (60) are arranged on the main body (10) at intervals along the outer edge of the main body (10), and the cutting rope loop is arranged on the plurality of guide wheels (60) so that the cutting rope is in a tensioned state; Wherein, the guide wheels (60) are rotatably arranged so that the cutting rope circulates around the plurality of guide wheels (60); and / or, The cutting device further comprises a driving member, a driving end of which is drivingly connected to at least one of the plurality of guide wheels (60) so that at least one of the plurality of guide wheels (60) can rotate.

8. The cutting device according to claim 1, It is characterized in that The main body (10) is provided with an avoidance opening groove (11) for avoiding the piece to be cut, the cutting piece (20) is arranged at a notch (111) of the avoidance opening groove (11), and the support piece (40) is arranged between a groove bottom (112) of the avoidance opening groove (11) and the notch (111); Wherein, along the direction from the groove bottom (112) to the groove opening (111), the depth of the avoidance opening groove (11) is greater than the length of the piece to be cut; and / or, Along the direction from the groove bottom (112) to the groove opening (111), the distance between the support member (40) and the cutting member (20) is smaller than the length of the member to be cut.

9. The cutting device according to claim 8, It is characterized in that The main body (10) comprises: A first main body portion (12) and a second main body portion (13) connected to each other, wherein at least a portion of the first main body portion (12) and at least a portion of the second main body portion (13) are spaced apart and arranged opposite to each other to form the avoidance opening groove (11); There are at least two clamping parts (31), at least one of the two clamping parts (31) is arranged on the first main body part (12), at least another of the two clamping parts (31) is arranged on the second main body part (13), and at least one of the two clamping parts (31) is arranged opposite to the other.

10. The cutting device according to claim 1, It is characterized in that The cutting device also includes: a position detection member, arranged on the main body (10), the detection end of the position detection member being arranged toward the support member (40), and the position detection member being used to detect the position of the support member (40); A control member, wherein the control member is used to drive the clamping portion (31) to move so that the clamping portion (31) moves to the clamping state or the loose state, and the position detection member is connected to the control member so that when the position detection member detects that the supporting member (40) is in the supporting state, the clamping portion (31) is in the loose state.

Images