Cutting tool

Abstract

The cutting tool comprises a connecting rod, a rolling structure, a positioning structure and a cutting structure, the rolling structure is connected with the connecting rod, and a rolling part of the rolling structure is located on the first side of the connecting rod; the positioning structure is movably connected with the connecting rod, a positioning part of the positioning structure is located on the first side of the connecting rod and comprises a tip deviating from the connecting rod and a notch corresponding to the rolling part, and after the positioning structure moves relative to the connecting rod, the surface, deviating from the connecting rod, of the tip or the inner wall, close to the connecting rod, of the notch is flush with the rolling part; the cutting structure is connected with the connecting rod or the rolling structure. A cutting part of the cutting structure is located on the first side of the connecting rod. When the surface, deviating from the connecting rod, of the tip is flush with the rolling part, circular cutting can be performed; when the inner wall, close to the connecting rod, of the notch is flush with the rolling part, similar and shrunk cutting can be achieved, in this way, parts of different shapes can be manufactured through the same cutting tool, and time wasted by switching of different manufacturing tools can be shortened.

Description

Technical Field

[0001] The present application relates to the field of cutting technology, and in particular to a cutting tool. Background Art

[0002] During the parts manufacturing process, it is necessary to produce parts of different shapes (such as circular flanges, rectangular pads) according to different assembly space, connection structure and other constraints.

[0003] However, currently different production tools need to be prepared for parts of different shapes, resulting in the need to switch between different production tools when producing parts of different shapes, thereby affecting the production efficiency of the parts. Utility Model Content

[0004] The present application provides a cutting tool, and a technical problem to be solved is: to provide a cutting tool capable of cutting parts of different shapes, so as to save the step of switching between different production tools, thereby shortening the production time and improving the production efficiency.

[0005] In order to solve the above technical problems, an embodiment of the present application provides a cutting tool, which includes: a connecting rod, a rolling structure, a positioning structure and a cutting structure, the rolling structure is connected to the connecting rod, and the rolling part of the rolling structure is located on the first side of the connecting rod; the positioning structure is movably connected to the connecting rod, and the positioning part of the positioning structure is located on the first side of the connecting rod, and the positioning part includes: a tip set away from the connecting rod and a notch set corresponding to the rolling part, and after the positioning structure moves relative to the connecting rod, the surface of the tip away from the connecting rod or the notch is close to the inner wall of the connecting rod and flush with the rolling part; the cutting structure is connected to the connecting rod or the rolling structure, and the cutting part of the cutting structure is located on the first side of the connecting rod.

[0006] In some embodiments, the positioning structure is provided with a first sleeve channel and a second sleeve channel; when the first sleeve channel is sleeved on the connecting rod, the tip is away from the surface of the connecting rod and is flush with the rolling part; the positioning structure moves relative to the connecting rod so that when the second sleeve channel is sleeved on the connecting rod, the notch is close to the inner wall of the connecting rod and is flush with the rolling part.

[0007] In some embodiments, the positioning structure includes: a positioning connecting column and a cushion block; the positioning connecting column is provided with a sleeve through hole that passes through both sides of the positioning connecting column, the sleeve through hole includes a first sleeve channel and a second sleeve channel, and a positioning portion is provided at one end of the positioning connecting column; when the first sleeve channel is sleeved with a connecting rod, the cushion block is located in the second sleeve channel; when the second sleeve channel is sleeved with a connecting rod, the cushion block is located in the first sleeve channel.

[0008] In some embodiments, the other end of the positioning connecting column is provided with a first locking hole connected to the sleeve through hole; the positioning structure also includes: a first locking piece, the first locking piece extends into the first locking hole and is fixed relative to the first locking hole, and after the first locking piece is fixed relative to the first locking hole, it squeezes the pad or connecting rod of the sleeve through hole.

[0009] In some embodiments, the cutting structure includes: an air pipe and a gas cutting head, the air pipe is detachably connected to the rolling structure, the gas cutting head is connected to the air pipe, and the gas outlet of the gas cutting head is located on the first side of the connecting rod and opposite to the connecting rod.

[0010] In some embodiments, the rolling structure includes: a rolling connecting column and a fixed block, the rolling connecting column is connected to the connecting rod, the side surface of the rolling connecting column corresponding to the first side of the connecting rod is recessed with a fixed recess, the fixed block is detachably fixed in the fixed recess, and the inner wall forming the fixed recess and the two surfaces corresponding to each other of the fixed block are respectively provided with relative first limiting grooves and second limiting grooves, the first limiting grooves and the second limiting grooves cooperate to form a first fixed space for fixing the air pipe.

[0011] In some embodiments, the cutting tool may further include: a support structure connected to the connecting rod and located between the rolling structure and the positioning structure, and the support structure is at least partially located on the first side of the connecting rod and detachably connected to the air supply pipe.

[0012] In some embodiments, the cutting tool may also include: a first gripping structure and a second gripping structure, the first gripping structure being connected to the air pipe and at least partially located on a side of the air pipe away from the connecting rod; the second gripping structure being connected to the connecting rod and at least partially located on a second side of the connecting rod, and the second gripping structure and the first gripping structure are relatively staggered in the extension direction of the connecting rod; wherein the first side and the second side are two sides of the connecting rod.

[0013] In some embodiments, a first side of the rolling connection column corresponding to the connecting rod and away from the connecting rod has an accommodating recessed surface, the rolling portion is spherical and is partially disposed in the accommodating recess and rotatably connected to the accommodating recess.

[0014] In some embodiments, the connecting rod is provided with a scale, the extension direction of the scale is consistent with the length direction of the connecting rod, and at least one of the rolling structure and the positioning structure is slidably connected to the connecting rod.

[0015] Through the above technical scheme, in the cutting tool provided by the present application, a rolling structure and a positioning structure are respectively connected to the connecting rod, and the rolling part of the rolling structure and the positioning part of the positioning structure are both located on the first side of the connecting rod, and the tip of the positioning part is away from the surface of the connecting rod and the notch is close to the inner wall of the connecting rod. One of them can be flush with the rolling part; when the tip is away from the surface of the connecting rod and is flush with the rolling part, the rolling part can be used as the center of the circle. The cutting part makes a circular motion, so that the cutting part connected to the connecting rod or the rolling structure can synchronously make a circular motion and can perform circular cutting; when the notch is close to the inner wall of the connecting rod and is flush with the rolling part, the notch can be pressed against the edge of the workpiece to be cut, and the rolling part can move parallel to the edge of the workpiece to be cut, so that the cutting part connected to the connecting rod or the rolling structure can synchronously cut parallel to the edge of the workpiece to be cut, so as to achieve similar and reduced cutting, such as: cutting a large rectangular plate into a similar small rectangular plate. In this way, the cutting tool of the present application can be used to produce parts of different shapes, so as to reduce the time wasted in switching between different production tools when producing parts of different shapes, thereby improving the production efficiency of parts.

[0016] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a cutting tool provided in an embodiment of the present application;

[0019] Figure 2 Schematic diagram of the partial decomposition structure of the cutting tool provided in the embodiment of the present application Figure 1 ;

[0020] Figure 3 A schematic diagram of a partial structure of a cutting tool provided in an embodiment of the present application;

[0021] Figure 4 Schematic diagram of the partial decomposition structure of the cutting tool provided in the embodiment of the present application Figure 2 .

[0022] Description of reference numerals:

[0023] 1. Connecting rod; 11. Scale; 2. Rolling structure; 21. Rolling part; 22. Rolling connecting column; 221. Fixed recess; 2211. First limiting groove; 23. Fixed block; 231. Second limiting groove; 24. Second locking piece; 25. Third locking piece; 3. Positioning structure; 31. Positioning part; 311. Tip; 312. Notch; 32. Positioning connecting column; 321. Sleeve through hole; 3211. First sleeve channel; 3212. Second sleeve channel; 3213. First locking hole; 33. Pad; 34. First locking piece; 4. Cutting structure; 41. Gas pipe; 42. Gas cutting head; 421. Gas outlet; 5. Support structure; 61. First gripping structure; 62. Second gripping structure. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the implementation methods of the present application in conjunction with the accompanying drawings and examples. The detailed descriptions of the following examples and the accompanying drawings are used to exemplarily illustrate the principles of the present application, but cannot be used to limit the scope of the present application. The present application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

[0025] The present application provides these embodiments to make the present application thorough and complete, and to fully express the scope of the present application to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0026] It should be noted that, in the description of this application, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0027] In addition, the words "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0028] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0029] All terms used in this application have the same meaning as those understood by those of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0030] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0031] The present application embodiment provides a cutting tool, see Figures 1 to 4 As shown, the cutting tool includes: a connecting rod 1, a rolling structure 2, a positioning structure 3 and a cutting structure 4, the rolling structure 2 is connected to the connecting rod 1, and the rolling portion 21 of the rolling structure 2 is located on the first side of the connecting rod 1; the positioning structure 3 is movably connected to the connecting rod 1, and the positioning portion 31 of the positioning structure 3 is located on the first side of the connecting rod 1, and the positioning portion 31 includes: a tip 311 set away from the connecting rod 1 and a notch 312 set corresponding to the rolling portion 21, and after the positioning structure 3 moves relative to the connecting rod 1, the tip 311 is away from the surface of the connecting rod 1 or the notch 312 is close to the inner wall of the connecting rod 1 and is flush with the rolling portion 21; the cutting structure 4 is connected to the connecting rod 1 or the rolling structure 2, and the cutting portion of the cutting structure 4 is located on the first side of the connecting rod 1.

[0032] In the connecting rod 1, the connecting rod 1 may be a rod-shaped structure with a circular cross section, a rod-shaped structure with a rectangular cross section, a rod-shaped structure with a regular hexagonal cross section, or a rod-shaped structure with a cross section of other shapes. The extending direction of the connecting rod 1 is the length direction of the connecting rod 1, and the two sides of the connecting rod 1 extending along the extending direction (length direction) are respectively the first side and the second side, for example: Figure 1 As shown, the extending direction of the connecting rod 1 is consistent with the horizontal direction, the first side of the connecting rod 1 is the lower side of the connecting rod 1, and the second side of the connecting rod 1 is the upper side of the connecting rod 1. For the convenience of explanation, the first side of the connecting rod 1 hereinafter is the lower side of the connecting rod 1, and the second side is the upper side of the connecting rod 1.

[0033] In the rolling structure 2, the connection between the rolling structure 2 and the connecting rod 1 can be a relatively fixed connection, so that the distance between the rolling portion 21 of the rolling structure 2 and the positioning portion 31 of the positioning structure 3 can be unchanged within a certain period of time; for example: the rolling structure 2 is sleeved on the connecting rod 1 in an interference fit manner, so that the rolling structure 2 is fixed relative to the connecting rod 1, and after the rolling structure 2 is moved along the length direction of the connecting rod 1 by applying a large external force, the rolling structure 2 can be fixed relative to the connecting rod 1 in the moved position again; for another example: the screws are respectively screwed to the rolling structure 2 and the connecting rod 1, so that the rolling structure 2 is fixed relative to the connecting rod 1, and after the screws are turned to disengage the connecting rod 1 and are screwed again with other positions of the connecting rod 1, the rolling structure 2 can be fixed relative to the connecting rod 1 again. The rolling structure 2 is provided with a rolling portion 21 at the end portion of the lower side of the connecting rod 1, and the rolling portion 21 is a structure that can roll relative to a plane, which can be a roller, a ball, or other rolling settings.

[0034] In the positioning structure 3, a positioning portion 31 is provided at the end of the positioning structure 3 corresponding to the lower side of the connecting rod 1, and the positioning portion 31 has a tip 311 and a notch 312 at the same time, and the tip 311 and the notch 312 have a height difference, and the movable connection between the positioning structure 3 and the connecting rod 1 can adjust the overall height of the tip 311 and the notch 312, and make one of the surface of the tip 311 away from the connecting rod 1 and the inner wall of the notch 312 close to the connecting rod 1 flush with the rolling portion 21. Since the two structures flush with each other can be placed on the same plane at the same time, when the surface of the tip 311 away from the connecting rod 1 is flush with the rolling portion 21, the surface of the tip 311 away from the connecting rod 1 and the rolling portion 21 can abut the same plane at the same time; when the notch 312 is close to the inner wall of the connecting rod 1 and is flush with the rolling portion 21, the inner wall of the notch 312 close to the connecting rod 1 and the rolling portion 21 can abut the same plane at the same time, and at least one inner wall in the notch 312 can abut the side edge of the structure corresponding to the plane. The movable connection between the positioning structure 3 and the connecting rod 1 can be a detachable movable connection, or a movable connection in which the two can move relative to each other without being disassembled, for example: Figure 1 and Figure 2 As shown, the positioning structure 3 is sleeved on the connecting rod 1, and the height of the sleeve through hole 321 on the positioning structure 3 for sleeved connecting rod 1 is greater than the width of the connecting rod 1. In this way, after the positioning structure 3 is sleeved on the connecting rod 1, the connecting rod 1 can move up and down in the sleeve through hole 321 of the positioning structure 3.

[0035] In the cutting structure 4, the cutting structure 4 can be connected to the connecting rod 1 or the rolling structure 2. When the cutting structure 4 is connected to the connecting rod 1 or the rolling structure 2, the cutting part of the cutting structure 4 corresponds to the lower side of the connecting rod 1, so that the workpiece to be cut located on the lower side of the connecting rod 1 can be cut.

[0036] In one embodiment, see Figure 1 As shown, the cutting tool includes: a connecting rod 1, a rolling structure 2, a positioning structure 3 and a cutting structure 4, the rolling structure 2 is connected to the connecting rod 1, and the rolling portion 21 of the rolling structure 2 is located on the first side of the connecting rod 1; the positioning structure 3 is movably connected to the connecting rod 1, and the positioning portion 31 of the positioning structure 3 is located on the first side of the connecting rod 1, and the positioning portion 31 includes: a tip 311 set away from the connecting rod 1 and a notch 312 set corresponding to the rolling portion 21, and after the positioning structure 3 moves relative to the connecting rod 1, the tip 311 is away from the surface of the connecting rod 1 or the notch 312 is close to the inner wall of the connecting rod 1 and flush with the rolling portion 21; the cutting structure 4 is connected to the rolling structure 2, and the cutting portion of the cutting structure 4 is located on the first side of the connecting rod 1. The cutting tool in this embodiment has at least the following four methods of use:

[0037] Method of use 1: When the tip 311 is facing away from the surface of the connecting rod 1 and is flush with the rolling part 21, place the cutting tool on the workpiece to be cut, use the tip 311 as the point, rotate the connecting rod 1 and make the rolling part 21 of the rolling structure 2 make a circular motion on the workpiece to be cut. The rolling part 21 can be coated with ink, so that a circle can be drawn on the workpiece to be cut as the rolling structure 2 moves in a circular motion.

[0038] Method of use two: When the surface of the tip 311 facing away from the connecting rod 1 is flush with the rolling portion 21, place the cutting tool on the workpiece to be cut, use the tip 311 as the center point, rotate the connecting rod 1 and make the rolling portion 21 of the rolling structure 2 move in a circle on the workpiece to be cut, so that the cutting portion of the cutting structure 4 connected to the rolling structure 2 can perform circular cutting on the workpiece to be cut.

[0039] Method of use three: When the notch 312 is close to the inner wall of the connecting rod 1 and is flush with the rolling part 21, place the cutting tool on the workpiece to be cut, and make the notch 312 correspond to and abut against the side edge of the workpiece to be cut, pull the connecting rod 1 along the extension direction of the side edge, and the rolling track of the rolling part 21 on the workpiece to be cut is parallel to the extension direction of the side edge. The rolling part 21 can be coated with ink, so that lines can be drawn on the workpiece to be cut, and the extension direction of the drawn lines is parallel to the extension direction of the side edge of the workpiece to be cut. It can be understood that when the workpiece to be cut is a large rectangular plate, the first side edge and the second side edge adjacent to each other extend along a straight line, and after marking the first side edge once, the second side edge is marked twice, so that two vertical lines can be drawn on the large rectangular plate, and the two lines cooperate with part of the first side edge and part of the second side edge to form a small rectangle.

[0040] Usage method 4: When the notch 312 is close to the inner wall of the connecting rod 1 and is flush with the rolling part 21, place the cutting tool on the workpiece to be cut, and make the notch 312 correspond to and abut against the side edge of the workpiece to be cut, pull the connecting rod 1 along the extension direction of the side edge, and the rolling track of the rolling part 21 on the workpiece to be cut is parallel to the extension direction of the side edge, so that the cutting part of the cutting structure 4 connected to the rolling structure 2 can perform a reduced cutting on the workpiece to be cut. For example: when the workpiece to be cut is a large rectangular plate, the first side edge and the second side edge adjacent to each other extend in a straight line, and after a first cutting corresponding to the first side edge, a second cutting corresponding to the second side edge is performed to cut a small rectangular plate.

[0041] In this embodiment, a rolling structure 2 and a positioning structure 3 are respectively connected to the connecting rod 1, and the rolling portion 21 of the rolling structure 2 and the positioning portion 31 of the positioning structure 3 are both located on the first side of the connecting rod 1, and one of the tip 311 of the positioning portion 31 away from the surface of the connecting rod 1 and the notch 312 close to the inner wall of the connecting rod 1 can be flush with the rolling portion 21; when the tip 311 is away from the surface of the connecting rod 1 and is flush with the rolling portion 21, the rolling portion 21 can make a circular motion with the tip 311 as the center of the circle, so that the cutting portion connected to the connecting rod 1 or the rolling structure 2 can synchronously make a circular motion and be able to perform circular cutting; when the notch 312 is close to the inner wall of the connecting rod 1 and is flush with the rolling portion 21, the notch 312 can be pressed against the edge of the workpiece to be cut, and the rolling portion 21 can move parallel to the edge of the workpiece to be cut, so that the cutting portion connected to the connecting rod 1 or the rolling structure 2 can synchronously make a cut parallel to the edge of the workpiece to be cut, so as to achieve similar and reduced cutting, such as: cutting a large rectangular plate into similar small rectangular plates. In this way, the cutting tool of the present application can be used to produce parts of different shapes, so as to reduce the time wasted in switching between different production tools when producing parts of different shapes, thereby improving the production efficiency of parts.

[0042] In some embodiments, see Figure 1 and Figure 2 As shown, the positioning structure 3 is provided with a first sleeve channel 3211 and a second sleeve channel 3212; when the first sleeve channel 3211 is sleeved on the connecting rod 1, the tip 311 is away from the surface of the connecting rod 1 and is flush with the rolling portion 21; the positioning structure 3 moves relative to the connecting rod 1 so that when the second sleeve channel 3212 is sleeved on the connecting rod 1, the notch 312 is close to the inner wall of the connecting rod 1 and is flush with the rolling portion 21.

[0043] That is to say, the connecting rod 1 can pass through the first sleeve channel 3211 and be located in the first sleeve channel 3211, or pass through the second sleeve channel 3212 and be located in the second sleeve channel 3212 after moving relative to the connecting rod 1, and when the connecting rod 1 is located in the first sleeve channel 3211, the surface of the tip 311 facing away from the connecting rod 1 is flush with the rolling portion 21; when the connecting rod 1 is located in the second sleeve channel 3212, the notch 312 is close to the inner wall of the connecting rod 1 and is flush with the rolling portion 21.

[0044] For example, see Figure 1 and Figure 2 As shown, the first sleeve channel 3211 is located below the second sleeve channel 3212, and the surface of the tip 311 facing away from the connecting rod 1 is located below the inner wall of the notch 312 close to the connecting rod 1; when the connecting rod 1 is located in the first sleeve channel 3211, the surface of the tip 311 facing away from the connecting rod 1 is flush with the rolling portion 21; when the connecting rod 1 is pulled out of the first sleeve channel 3211 and located in the second sleeve channel 3212, the positioning structure 3 moves downward as a whole and moves downward with the notch 312, so that the notch 312 is close to the inner wall of the connecting rod 1 and is flush with the rolling portion 21.

[0045] In this embodiment, by providing the first sleeve channel 3211 and the second sleeve channel 3212 in the positioning structure 3, the connecting rod 1 switches between the first sleeve channel 3211 and the second sleeve channel 3212, so as to achieve the purpose that the tip 311 is away from the surface of the connecting rod 1 or the notch 312 is close to the inner wall of the connecting rod 1 and is flush with the rolling portion 21. The channel setting structure is simple and easy to manufacture, and the setting of the channel can save the manufacturing materials of the positioning structure 3.

[0046] In some embodiments, see Figure 1 and Figure 2 As shown, the positioning structure 3 includes: a positioning connecting column 32 and a cushion block 33; the positioning connecting column 32 is provided with a sleeve through hole 321 which passes through both sides of the positioning connecting column 32, the sleeve through hole 321 includes a first sleeve channel 3211 and a second sleeve channel 3212, and a positioning portion 31 is provided at one end of the positioning connecting column 32; when the first sleeve channel 3211 is sleeved on the connecting rod 1, the cushion block 33 is located in the second sleeve channel 3212; when the second sleeve channel 3212 is sleeved on the connecting rod 1, the cushion block 33 is located in the first sleeve channel 3211.

[0047] The positioning connecting column 32 can be a regular cylindrical column or an irregular cylindrical column. For example, in the extension direction (height direction) of the positioning connecting column 32, the radial dimensions at different height positions are inconsistent, and the radial dimension at the corresponding position of the sleeve through hole 321 is smaller than the radial dimension at the position of the positioning portion 31. In this way, the weight of the part of the positioning connecting column 32 connected to the positioning portion 31 can be large, so that the positioning portion 31 can be more stable after contacting the to-be-cut piece. The two sides of the positioning connecting column 32 are the two sides in the height direction, that is, the extension direction of the sleeve through hole 321 is the left and right direction, and the first sleeve channel 3211 and the second sleeve channel 3212 are two positions of different heights in the same sleeve through hole 321. The first sleeve channel 3211 can be at the bottom, and the second sleeve channel 3212 can be correspondingly above the first sleeve channel 3211. In this way, the connecting rod 1 can switch between the first sleeve channel 3211 and the second sleeve channel 3212 by moving up and down. Here, the positioning connection column 32 and the positioning portion 31 can be two relatively independent settings that can be connected to each other, or can be an integrally formed setting.

[0048] The cushion block 33 can be located in the first set channel 3211 or in the second set channel 3212, and can switch between the two channels. For example, when the connecting rod 1 moves to the first set channel 3211, the cushion block 33 can be sent from the opening of the set through hole 321 into the second set channel 3212 in the set through hole 321; for another example, when the connecting rod 1 moves to the second set channel 3212, the cushion block 33 can be sent from the opening of the set through hole 321 into the first set channel 3211 in the set through hole 321.

[0049] In this embodiment, a sleeve through hole 321 is opened on the positioning connecting column 32, and the sleeve through hole 321 includes a first sleeve channel 3211 and a second sleeve channel 3212, so that the connecting rod 1 can move up and down in the sleeve through hole 321 to switch between the first sleeve channel 3211 and the second sleeve channel 3212. When the connecting rod 1 is in one of the first sleeve channel 3211 and the second sleeve channel 3212, the other channel can be filled by the cushion block 33 to reduce the probability of displacement of the connecting rod 1 relative to the positioning structure 3.

[0050] In some embodiments, see Figure 1 and Figure 2 As shown, the other end of the positioning connecting column 32 is provided with a first locking hole 3213 connected to the sleeve through hole 321; the positioning structure 3 also includes: a first locking piece 34, the first locking piece 34 extends into the first locking hole 3213 and is relatively fixed to the first locking hole 3213, and after the first locking piece 34 is fixed relative to the first locking hole 3213, it squeezes the cushion block 33 or the connecting rod 1 in the sleeve through hole 321.

[0051] The relatively fixed connection between the first locking piece 34 and the first locking hole 3213 can be an interference fit connection, for example, the first locking piece 34 is squeezed into the first locking hole 3213 and the corresponding part inside the first locking hole 3213 is squeezed to form a circle of inner wall of the first locking hole 3213, or the first locking piece 34 is a screw rod and can be connected to the thread on the circle of inner wall forming the first locking hole 3213, or other relatively fixed connection design structures.

[0052] The first locking hole 3213 is connected to the sleeve through hole 321, and the first locking piece 34 is fixed relative to the first locking hole 3213 to squeeze the cushion block 33 or the connecting rod 1 in the sleeve through hole 321. That is to say, after the first locking piece 34 is connected to the first locking hole 3213, it can abut the cushion block 33 or the connecting rod 1 located in the sleeve through hole 321 near the first locking hole 3213.

[0053] In this embodiment, the first locking piece 34 squeezes the cushion block 33 or the connecting rod 1 in the sleeve through hole 321, so that the gap between the cushion block 33, the connecting rod 1 and the positioning connecting column 32 in the sleeve through hole 321 is smaller and they are fixed to each other more firmly.

[0054] In some embodiments, see Figure 1 and Figure 3 As shown, the cutting structure 4 includes: an air pipe 41 and a gas cutting head 42, the air pipe 41 is detachably connected to the rolling structure 2, the gas cutting head 42 is connected to the air pipe 41, and the air outlet 421 of the gas cutting head 42 is located on the first side of the connecting rod 1 and opposite to the connecting rod 1.

[0055] The detachable connection between the air pipe 41 and the rolling structure 2 can be achieved by the air pipe 41 being clamped in the clamping recess of the rolling structure 2 by interference fit, or by connecting the air pipe 41 to the rolling structure 2 by screws, or by adsorbing the air pipe 41 to the rolling structure 2 by magnetic adsorption, or by other methods to achieve detachable connection with the rolling structure 2. After the air pipe 41 is connected to the rolling structure 2, the extension directions of the two can be perpendicular to each other or not perpendicular to each other, for example: see Figure 1 As shown, the extension directions of the two are perpendicular, and the extension direction of the rolling structure 2 is perpendicular to the extension direction of the connecting rod 1, so that the extension direction of the air pipe 41 is parallel to the extension direction of the connecting rod 1. The parallel design makes the cutting tool have parallel beauty.

[0056] The gas pipe 41 is connected to the gas cutting head 42 to deliver cutting gas (such as a mixture of acetylene and oxygen) to the gas outlet 421 of the gas cutting head 42. After the cutting gas is output from the gas outlet 421 of the gas cutting head 42, the position of the workpiece to be cut that the rolling portion 21 of the rolling structure 2 abuts against corresponding to the gas outlet 421 can be cut by burning the gas. For example, when the positioning structure 3 rotates with the tip 311 as the center of the circle so that the gas outlet 421 moves in a circle, the workpiece to be cut can be cut into a circular structure.

[0057] Here, the number of the gas delivery pipes 41 may be one or more. When the number of the gas delivery pipes 41 is more than one, different gas delivery pipes 41 may provide different gases, and flow control valves may be respectively provided on different gas delivery pipes 41, so that the ratio of each gas in the mixed gas at the gas outlet 421 can be adjusted through the flow control valve; for example: see Figure 1 As shown, there are two gas pipelines 41 , which respectively transport acetylene and oxygen, and each gas pipeline 41 is provided with a flow control valve.

[0058] In this embodiment, the gas pipe 41 provides cutting gas to the gas cutting head 42, and the gas in the gas cutting head 42 is output to the workpiece to be cut through the gas outlet 421 thereon, so that the workpiece to be cut can be cut. In addition, the gas outlet 421 of the gas cutting head 42 is located on the first side of the connecting rod 1 and opposite to the connecting rod 1, so that after the rolling structure 2 and the positioning structure 3 abut against the workpiece to be cut, the gas outlet 421 is opposite to the workpiece to be cut, so that cutting can be performed without adjusting the position of the gas outlet 421, thereby improving the cutting efficiency.

[0059] In some embodiments, see Figure 1 and Figure 3 As shown, the rolling structure 2 includes: a rolling connecting column 22 and a fixed block 23, the rolling connecting column 22 is connected to the connecting rod 1, and the side surface of the rolling connecting column 22 corresponding to the first side of the connecting rod 1 is recessed with a fixed recess 221, and the fixed block 23 is detachably fixed in the fixed recess 221, and the inner wall of the fixed recess 221 and the two surfaces corresponding to each other of the fixed block 23 are respectively provided with relative first limiting grooves 2211 and second limiting grooves 231, and the first limiting grooves 2211 and the second limiting grooves 231 cooperate to form a first fixed space for fixing the air supply pipe 41.

[0060] The connection between the rolling connection column 22 and the connecting rod 1 can be a detachable fixed connection or a non-detachable fixed connection. For example, the rolling connection column 22 and the connecting rod 1 are detachably fixedly connected. The rolling connection column 22 is detachably mounted on the connecting rod 1. The third locking piece 25 in the form of a screw passes through the end of the rolling connection column 22 away from the rolling portion 21 and squeezes the connecting rod 1 corresponding to the rolling connection column 22 to fix the connecting rod 1. At the same time, when the third locking piece 25 is twisted so as not to squeeze the connecting rod 1 corresponding to the rolling connection column 22, the rolling connection column 22 and the connecting rod 1 can be separated.

[0061] The rolling connection column 22 and the fixed block 23 can be detachably fixed relative to each other by screwing with a second locking piece 24 (i.e., a screw), or by adsorption, or by other means. The fixed recess 221 on the rolling connection column 22 and the fixed block 23 can match each other, so that after the fixed block 23 is located in the fixed recess 221, the surface of the fixed block 23 corresponding to the fixed recess 221 abuts against the inner wall of the fixed recess 221, so as to reduce the probability of relative displacement between the two after the two are connected. The size of the first fixed space is consistent with the circumferential size of the air pipe 41, so that the air pipe 41 is fixed relative to the rolling structure 2 after being fixed in the first fixed space.

[0062] In this embodiment, the gas pipe 41 is fixed by the rolling connection column 22 and the connecting rod 1 that can be detached from each other, so that after the rolling connection column 22 and the connecting rod 1 are separated, the gas pipe 41 can be separated from the cutting tool for maintenance, replacement, etc. In addition, since the inner wall forming the fixed recess 221 and the two surfaces corresponding to each other of the fixed block 23 are respectively provided with the first limiting groove 2211 and the second limiting groove 231 opposite to each other, the first limiting groove 2211 and the second limiting groove 231 cooperate to form a first fixed space for fixing the gas pipe 41, so that the gas pipe 41 fixed in the first fixed space abuts against the first limiting groove 2211 and the second limiting groove 231, so as to reduce the probability of displacement of the relative rolling structure 2, thereby avoiding the shaking of the gas pipe 41 during the cutting process, so that the situation of inaccurate cutting position caused by the shaking of the cutting tool occurs.

[0063] In some embodiments, see Figure 1 As shown, the cutting tool may further include: a support structure 5, which is connected to the connecting rod 1 and is located between the rolling structure 2 and the positioning structure 3, and the support structure 5 is at least partially located on the first side of the connecting rod 1 and is detachably connected to the air pipe 41.

[0064] That is, the rolling structure 2 is connected to the connecting rod 1 and the gas pipe 41 respectively, and the supporting structure 5 is connected to the connecting rod 1 and the gas pipe 41 respectively, so that the double connection makes the relative fixing effect of the connecting rod 1 and the gas pipe 41 better. Here, the supporting structure 5 can cooperate with the rolling structure 2 to make the connecting rod 1 and the gas pipe 41 parallel or non-parallel to each other, and the connection between the supporting structure 5 and the connecting rod 1 can refer to the connection between the rolling structure 2 and the connecting rod 1, and will not be described in detail here.

[0065] In some embodiments, see Figure 1 As shown, the cutting tool may further include: a first gripping structure 61 and a second gripping structure 62, wherein the first gripping structure 61 is connected to the gas pipe 41 and is at least partially located on a side of the gas pipe 41 away from the connecting rod 1; the second gripping structure 62 is connected to the connecting rod 1 and is at least partially located on the second side of the connecting rod 1, and the second gripping structure 62 and the first gripping structure 61 are relatively misaligned in the extension direction of the connecting rod 1; wherein the first side and the second side are the two sides of the connecting rod 1. In this way, when using the cutting tool, the left and right hands can grip the first gripping structure 61 and the second gripping structure 62 respectively, and due to the relative misalignment of the first gripping structure 61 and the second gripping structure 62, the left and right arms are opened at a certain angle, thereby making the cutting tool more ergonomic.

[0066] The first gripping structure 61 may be as follows Figure 1 The ring shape shown in the figure may also be L-shaped or other shapes; the gripped part of the first gripping structure 61 may be attached with an elastic layer such as rubber or silicone to make the user's hand more comfortable when gripping. The second gripping structure 62 may be as follows Figure 1 The block shape shown in the figure may also be a ring shape or other shapes; the gripped part of the second gripping structure 62 may be attached with an elastic layer such as rubber or silicone to make the user's hand more comfortable when gripping.

[0067] In some embodiments, the rolling connection column 22 has a recessed receiving portion on the surface corresponding to the first side of the connecting rod 1 and away from the connecting rod 1, and the rolling portion 21 is spherical and is partially disposed in the receiving portion and is rotatably connected to the receiving portion. In other words, the rolling portion 21 can be a spherical structure such as a ball, and when the rolling portion 21 rolls relative to the receiving portion of the rolling connection column 22, the rolling structure 2 can roll along the surface of the workpiece to be cut through the cooperation between the rolling portion 21 and the receiving portion.

[0068] Of course, the rolling part 21 can also be a roller. When the rolling part 21 is a roller, a greater force needs to be applied to change the angle of the roller during the circular motion of the rolling part 21, thereby realizing the circular motion. The greater force makes the friction and wear between the roller and the workpiece to be cut greater, and the greater friction can quickly stop at the position where the cutting ends, so that the next process can be entered more quickly, thereby improving work efficiency. When the rolling part 21 is a sphere such as a ball, a smaller force can be applied to change the angle of the rolling part 21, thereby realizing the circular motion. The smaller force makes the friction and wear between the rolling part 21 and the workpiece to be cut smaller, and the smaller friction will stop at the position after cutting at a slower speed, which prolongs the time to enter the next process, and the work efficiency is affected. In this way, it can be flexibly selected according to the actual situation during the specific implementation.

[0069] In some embodiments, see Figure 1 As shown, the connecting rod 1 is provided with a scale 11, the extension direction of the scale 11 is consistent with the length direction of the connecting rod 1, and at least one of the rolling structure 2 and the positioning structure 3 is slidably connected to the connecting rod 1. In this way, the distance between the rolling structure 2 and the positioning structure 3 can be adjusted according to the scale 11 to adjust the size after cutting.

[0070] In some embodiments, see Figures 1 to 4 As shown, the cutting tools include:

[0071] The connecting rod 1 is provided with a scale 11, and the extension direction of the scale 11 is consistent with the length direction of the connecting rod 1. The two sides of the connecting rod 1 are respectively a first side and a second side.

[0072] The rolling structure 2 is connected to the connecting rod 1, and the rolling part 21 of the rolling structure 2 is located on the first side of the connecting rod 1. The rolling structure 2 includes: a rolling connection column 22 and a fixed block 23. The rolling connection column 22 is connected to the connecting rod 1. The side surface of the rolling connection column 22 corresponding to the first side of the connecting rod 1 is recessed with a fixed recess 221. The fixed block 23 is detachably fixed in the fixed recess 221, and the inner wall of the fixed recess 221 and the two surfaces corresponding to each other of the fixed block 23 are respectively provided with a first limiting groove 2211 and a second limiting groove 231 opposite to each other. The first limiting groove 2211 and the second limiting groove 231 cooperate to form a first fixed space for fixing the gas delivery pipe 41. The surface of the rolling connection column 22 corresponding to the first side of the connecting rod 1 and away from the connecting rod 1 is recessed with an accommodating recess. The rolling part 21 is spherical and is partially arranged in the accommodating recess and is rotatably connected with the accommodating recess.

[0073] The positioning structure 3 is movably connected with the connecting rod 1 and can slide along the extension direction of the connecting rod 1. The positioning portion 31 of the positioning structure 3 is located on the first side of the connecting rod 1. The positioning portion 31 includes: a tip 311 disposed away from the connecting rod 1 and a notch 312 disposed corresponding to the rolling portion 21. After the positioning structure 3 moves relative to the connecting rod 1, the tip 311 is away from the surface of the connecting rod 1 or the notch 312 is close to the inner wall of the connecting rod 1 and is flush with the rolling portion 21. The positioning structure 3 is provided with a first sleeve channel 3211 and a second sleeve channel 3212; when the first sleeve channel 3211 is sleeved on the connecting rod 1, the tip 311 is away from the surface of the connecting rod 1 and is flush with the rolling portion 21; when the positioning structure 3 moves relative to the connecting rod 1 so that the second sleeve channel 3212 is sleeved on the connecting rod 1, the notch 312 is close to the inner wall of the connecting rod 1 and is flush with the rolling portion 21. The positioning structure 3 includes: a positioning connection column 32 and a cushion block 33; the positioning connection column 32 is provided with a sleeve through hole 321 that passes through both sides of the positioning connection column 32, the sleeve through hole 321 includes a first sleeve channel 3211 and a second sleeve channel 3212, and a positioning portion 31 is provided at one end of the positioning connection column 32; when the first sleeve channel 3211 is sleeved with the connecting rod 1, the cushion block 33 is located in the second sleeve channel 3212; when the second sleeve channel 3212 is sleeved with the connecting rod 1, the cushion block 33 is located in the first sleeve channel 3211. The other end of the positioning connection column 32 is provided with a first locking hole 3213 that communicates with the sleeve through hole 321; the positioning structure 3 also includes: a first locking member 34, the first locking member 34 extends into the first locking hole 3213 and is fixed relative to the first locking hole 3213, and the first locking member 34 is fixed relative to the first locking hole 3213 to squeeze the cushion block 33 or the connecting rod 1 in the sleeve through hole 321.

[0074] The cutting structure 4 includes: two gas pipes 41 and a gas cutting head 42. The two gas pipes 41 are detachably connected to the rolling structure 2, and the two gas pipes 41 transport acetylene and oxygen respectively. The gas cutting head 42 is connected to the gas pipe 41, and the gas outlet 421 of the gas cutting head 42 is located on the first side of the connecting rod 1 and opposite to the connecting rod 1.

[0075] The supporting structure 5 is connected to the connecting rod 1 and is located between the rolling structure 2 and the positioning structure 3 . The supporting structure 5 is at least partially located on the first side of the connecting rod 1 and is detachably connected to the air delivery pipe 41 .

[0076] A first gripping structure 61 and a second gripping structure 62, the first gripping structure 61 is connected to the two air pipes 41 and is at least partially located on a side of the air pipes 41 away from the connecting rod 1; the second gripping structure 62 is connected to the connecting rod 1 and is at least partially located on a second side of the connecting rod 1, and the second gripping structure 62 and the first gripping structure 61 are relatively staggered in the extension direction of the connecting rod 1.

[0077] So far, various embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed herein.

[0078] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A cutting tool, characterized in that: include: Connecting rod (1); A rolling structure (2) connected to the connecting rod (1), wherein a rolling portion (21) of the rolling structure (2) is located on a first side of the connecting rod (1); A positioning structure (3) is movably connected to the connecting rod (1), wherein a positioning portion (31) of the positioning structure (3) is located on a first side of the connecting rod (1), and the positioning portion (31) comprises: a tip (311) disposed away from the connecting rod (1) and a notch (312) disposed corresponding to the rolling portion (21), and after the positioning structure (3) moves relative to the connecting rod (1), the tip (311) is away from the surface of the connecting rod (1) or the notch (312) is close to the inner wall of the connecting rod (1) and is flush with the rolling portion (21); A cutting structure (4) is connected to the connecting rod (1) or the rolling structure (2), and a cutting portion of the cutting structure (4) is located on a first side of the connecting rod (1).

2. The cutting tool according to claim 1, characterized in that The positioning structure (3) is provided with a first set channel (3211) and a second set channel (3212); When the first sleeve channel (3211) is sleeved on the connecting rod (1), the surface of the tip (311) facing away from the connecting rod (1) is flush with the rolling portion (21); The positioning structure (3) moves relative to the connecting rod (1) so that when the second sleeve channel (3212) sleeves the connecting rod (1), the notch (312) is close to the inner wall of the connecting rod (1) and is flush with the rolling portion (21).

3. The cutting tool according to claim 2, characterized in that The positioning structure (3) comprises: a positioning connection column (32) and a cushion block (33); The positioning connection column (32) is provided with a sleeve through hole (321) penetrating through both sides of the positioning connection column (32), the sleeve through hole (321) includes the first sleeve channel (3211) and the second sleeve channel (3212), and one end of the positioning connection column (32) is provided with the positioning portion (31); When the first sleeve channel (3211) is sleeved on the connecting rod (1), the cushion block (33) is located in the second sleeve channel (3212); When the second sleeve channel (3212) is sleeved on the connecting rod (1), the cushion block (33) is located in the first sleeve channel (3211).

4. The cutting tool according to claim 3, characterized in that The other end of the positioning connection column (32) is provided with a first locking hole (3213) communicating with the sleeve through hole (321); The positioning structure (3) further comprises: a first locking piece (34), the first locking piece (34) extending into the first locking hole (3213) and being fixed relative to the first locking hole (3213), and after the first locking piece (34) is fixed relative to the first locking hole (3213), it squeezes the cushion block (33) or the connecting rod (1) sleeved in the through hole (321).

5. The cutting tool according to claim 1, characterized in that The cutting structure (4) comprises: an air supply pipe (41) and an air cutting head (42); the air supply pipe (41) is detachably connected to the rolling structure (2); the air cutting head (42) is in communication with the air supply pipe (41); and an air outlet (421) of the air cutting head (42) is located on a first side of the connecting rod (1) and opposite to the connecting rod (1).

6. The cutting tool according to claim 5, characterized in that The rolling structure (2) comprises: a rolling connection column (22) and a fixed block (23); the rolling connection column (22) is connected to the connecting rod (1); a fixed recess (221) is recessed on the side surface of the rolling connection column (22) corresponding to the first side of the connecting rod (1); the fixed block (23) is detachably fixed in the fixed recess (221); and the inner wall of the fixed recess (221) and the two surfaces corresponding to each other of the fixed block (23) are respectively provided with a first limiting groove (2211) and a second limiting groove (231) opposite to each other; the first limiting groove (2211) and the second limiting groove (231) cooperate to form a first fixed space for fixing the air supply pipe (41).

7. The cutting tool according to claim 6, characterized in that Also includes: A support structure (5) is connected to the connecting rod (1) and is located between the rolling structure (2) and the positioning structure (3), and the support structure (5) is at least partially located on the first side of the connecting rod (1) and is detachably connected to the air supply pipe (41).

8. The cutting tool according to claim 7, characterized in that Also includes: a first gripping structure (61), the first gripping structure (61) being connected to the air delivery pipe (41) and at least partially located on a side of the air delivery pipe (41) away from the connecting rod (1); a second gripping structure (62), the second gripping structure (62) being connected to the connecting rod (1) and at least partially located on a second side of the connecting rod (1), and the second gripping structure (62) and the first gripping structure (61) being relatively offset in the extension direction of the connecting rod (1); Wherein, the first side and the second side are two sides of the connecting rod (1).

9. The cutting tool according to claim 6, characterized in that The rolling connection column (22) has a receiving recessed portion on a surface corresponding to the first side of the connecting rod (1) and away from the connecting rod (1); the rolling portion (21) is spherical and is partially disposed in the receiving recessed portion and is rotatably connected to the receiving recessed portion.

10. The cutting tool according to claim 1, characterized in that The connecting rod (1) is provided with a scale (11), the extension direction of the scale (11) is consistent with the length direction of the connecting rod (1), and at least one of the rolling structure (2) and the positioning structure (3) is slidably connected to the connecting rod (1).

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