Cutter for cutting

Abstract

The tool for cutting comprises a tool handle and a tool bit, and the tool bit is connected with a tool rest through the tool handle; the cutter handle comprises a fixing piece, and the clamp is connected with the cutter frame through the fixing piece. The clamp is connected with the tool bit through the mounting part; the vibration reduction part is of a U-shaped structure, and the fixing part and the mounting part are coaxially arranged at the two ends of a U-shaped groove of the vibration reduction part in a spaced mode. According to the clamp for the lathe tool bit, when the acting force transmitted by the tool bit is transmitted to the tool rest through the mounting piece, the acting force passes through the vibration reduction piece, the vibration reduction piece decomposes and blocks the transmitted acting force, the acting force transmitted to the fixing piece in the axial direction is greatly weakened, the acting force transmitted to the tool rest in the axial direction is reduced, and therefore the tool bit is prevented from being damaged. And therefore, the anti-vibration of the tool bit is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical processing equipment, and in particular to a tool for cutting. Background Art

[0002] When the lathe processes the workpiece, the cutter head is installed on the tool holder, the workpiece is fed through the feeding mechanism, and the cutter head processes the rotating workpiece. When the cutter head is fixed on the tool holder, it is mostly clamped by the tool. However, most of the tools in the prior art are straight structures, that is, the cutter head is directly inserted into the tool, and the tool is directly inserted into the tool holder. When the cutter head processes the workpiece, the force generated between the workpiece and the cutter head is directly transmitted to the tool holder through the cutter head and the tool. This will cause the cutter head to vibrate along the direction of the force transmission, and the vibration will rebound on the workpiece, which will cause the processed workpiece to be defective and affect the service life of the cutter head.

[0003] Therefore, there is room for further improvement in the tool for fixing the tool head in the lathe in the prior art. Summary of the invention

[0004] In view of this, in order to address the technical problem that when the tool in the above-mentioned prior art lathe clamps the tool head, due to its own straight structure, it will generate vibration during tool head processing, which will then affect the workpiece processing, the present application provides a tool for cutting, which includes a tool head and a tool handle. The tool head is installed on the tool holder through the tool handle. The tool handle is provided with a vibration damping part, which can buffer the force transmitted by the tool head along the straight surface, play a vibration-absorbing role, reduce the vibration of the tool head when the tool head interacts with the workpiece, and reduce the impact on the workpiece processing.

[0005] The present application provides a tool for cutting, comprising a tool handle and a tool head, wherein the tool head is connected to a tool holder through the tool handle; Wherein, the knife handle comprises: A fixing member, wherein the knife handle is connected to the knife holder via the fixing member; A mounting member, wherein the knife handle is connected to the knife head via the mounting member; The vibration damping member is a U-shaped structure, and the fixing member and the mounting member are coaxially arranged at two ends of the U-shaped groove of the vibration damping member with a spacing.

[0006] Compared with the prior art, the cutting tool of the present application comprises a tool holder and a tool head, and the tool head is installed on the tool holder through the tool holder; the tool holder is provided with a vibration damping member of a U-shaped structure, and the vibration damping member is provided with a U-shaped groove, and the fixing member and the mounting member are coaxially arranged at both ends of the U-shaped groove of the vibration damping member, one end of the tool holder is fixed to the tool holder through the fixing member, and the other end is connected to the tool head through the mounting member, and when the force transmitted by the tool head is transmitted to the tool holder through the mounting member, it will pass through the vibration damping member, and the vibration damping member will decompose and block the transmitted force, and greatly weaken the force transmitted to the fixing member in the axial direction, so that the force transmitted to the tool holder in the axial direction is reduced, thereby reducing the anti-vibration to the tool head; at the same time, the vibration damping member is a U-shaped structure The fixing part and the mounting part are respectively connected to the two ends of the vibration damping part, and the two are coaxially spaced. Then, when the cutter head acts on the workpiece and the cutter head is subjected to the rebound force of the workpiece, the cutter head carries the mounting part and moves axially toward the fixing part. The U-shaped vibration damping part provides space for the mounting part to move axially, thereby interrupting the direct force transmission of the mounting part to the fixing part. In addition, the U-shaped groove of the vibration damping part can greatly decompose the axial force when transmitting the force, which has a great vibration reduction effect, so that when the cutter head processes the workpiece, the amplitude of the cutter head is small, and it is not easy to affect the processing of the workpiece, thereby improving the processing accuracy of the workpiece, reducing the roughness of the surface of the processed part, and improving the smoothness.

[0007] Preferably, the vibration damping member comprises a first columnar portion, a second columnar portion and an arc-shaped portion, the first columnar portion and the second columnar portion are arranged in parallel with each other, and the axis direction of the fixing member is perpendicular to the length extension direction of the first columnar portion; One end of the arc-shaped portion is connected to the first column-shaped portion, and the other end is connected to the second column-shaped portion to form a U-shaped structure.

[0008] Preferably, a first mounting hole is provided at one end of the first columnar portion away from the arc-shaped portion, the fixing member comprises a first mounting column, and the first mounting hole is used to mount the first mounting column; A second mounting hole is provided at one end of the second columnar portion away from the arc-shaped portion, the mounting member comprises a second mounting column, and the second mounting hole is used to mount the second mounting column; Wherein, the first mounting hole and the second mounting hole are coaxially arranged.

[0009] Preferably, along the axial direction of the fixing member, the axial thickness of the first columnar portion is 15.5-16.5 mm, and the axial thickness of the second columnar portion is 15.5-16.5 mm; In a direction perpendicular to the axial direction of the fixing member, the width of the first columnar portion is 21.5 to 22.5 mm, and the width of the second columnar portion is 21.5 to 22.5 mm; The fixing member is welded to the first columnar portion, and the mounting member is welded to the second columnar portion.

[0010] Preferably, the radius of the inner arc surface of the vibration damping member is set to 7.0-8.0 mm, and the radius of the outer arc surface of the vibration damping member is set to 23.0-24.0 mm.

[0011] Preferably, the fixing member is made of 50# steel; and / or the mounting member is made of 50# steel; Wherein, the vibration damping member is made by cutting a whole plate.

[0012] Preferably, the fixing member comprises a first straight surface segment and a first arc segment, two ends of the first arc segment are respectively connected to two ends of the first straight surface segment, and the fixing member is a D-shaped structure; and / or, The mounting member comprises a second straight surface segment and a second arc segment, two ends of the second arc segment are respectively connected to two ends of the second straight surface segment, and the mounting member is a D-shaped structure; Wherein, the first straight surface segment and the second straight surface segment are located in the same plane.

[0013] Preferably, the mounting member is provided with a fixing hole, the fixing hole is coaxially arranged with the mounting member, and the fixing hole penetrates the mounting member in the axial direction; The mounting piece is provided with a threaded mounting hole, one end of the threaded mounting hole opens on the second straight surface section, and the other end is connected to the fixing hole; Wherein, the axis of the threaded mounting hole is perpendicular to the axis of the fixing member.

[0014] Preferably, the length of the first straight section is smaller than the radius of the fixing member, and the length of the second straight section is smaller than the radius of the mounting member; Wherein, the diameter of the fixing piece is 17.5-18.5 mm, and the length of the first straight section is 7.75-8.75 mm; The diameter of the mounting piece is 17.5-18.5 mm, and the length of the second straight surface section is 7.75-8.75 mm.

[0015] Preferably, the diameter of the fixing hole is set at 4.03 mm to 4.10 mm; The threaded mounting holes are provided in two, the two threaded mounting holes are arranged in parallel and spaced apart, and the threaded mounting holes are M6 thread bolt holes; The distance between the axes of the two screw hole mounting holes is 8 mm, and the distance between the axis of the screw hole mounting hole far away from the vibration damping component and the near end of the mounting component is 8 mm.

[0016] A cutting tool of the present application has at least the following technical effects: 1. The U-shaped vibration damping part can decompose the force between the cutter head and the workpiece during processing, thereby playing a vibration-absorbing role and reducing the impact of the cutter head vibration on the workpiece processing; 2. By cutting the vibration damper into a whole plate, the stress concentration at the bending part of the vibration damper is reduced, so that the vibration damper can evenly transmit the force when it is subjected to the force, reducing the probability of damage to the vibration damper; 3. By setting the fixing parts and mounting parts to be made of No. 50 steel, the fixing parts and mounting parts have better wear resistance, better resistance to dynamic loads and impact, and can ensure the working stability and service life of the tool; 4. By setting the mounting parts and fixing parts in a D shape, they can be better positioned during installation, so that the installation is accurate and fast. In addition, the mounting parts and fixing parts can be effectively prevented from rotating relative to the vibration damping parts, which can effectively ensure the overall stability of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of a knife handle provided in one embodiment of the present application; Figure 2 This is a side view of the structure of the knife handle provided in one embodiment of the present application. Figure 1 ; Figure 3 This is a side view of the structure of the knife handle provided in one embodiment of the present application. Figure 2 ; Figure 4 This is a side view of the structure of the knife handle provided in one embodiment of the present application. Figure 3 ; Figure 5 It is a schematic side view of the structure of a vibration damping component provided in one embodiment of the present application.

[0018] Reference numerals: 1. handle; 11. Fixing parts; 12. Mounting parts; 13. Vibration-absorbing parts; 111, first mounting column; 112, first straight surface segment; 113, first arc segment; 114, first connecting column; 121, second mounting column; 122, second straight section; 123, second arc section; 124, fixing hole; 125, threaded mounting hole; 126, second connecting column; 131. First columnar portion; 132. Second columnar portion; 133. Arc-shaped portion; 134. First mounting hole; 135. Second mounting hole. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present disclosure, the present disclosure is described in detail, clearly and completely in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and are not used to limit the present disclosure.

[0020] In the description of this application, if there is a description of first or second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0021] Those skilled in the art should understand that, in the disclosure of the present application, the orientation or positional relationship indicated by terms such as "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", and "outside" are based on the orientation or positional relationship shown in the accompanying drawings, which are only for the convenience of describing the present 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. Therefore, the above terms should not be understood as limiting the present application.

[0022] The present application is further described in detail below in conjunction with the accompanying drawings. Figures 1 to 5 illustrate.

[0023] The present application provides a tool for cutting, hereinafter referred to as the tool, which is used in a lathe, and includes a tool handle 1 and a tool head. The tool head is installed on the lathe tool holder through the tool handle 1 to ensure that the tool head can operate stably. At the same time, the tool handle of the present application has a vibration-damping effect on the tool head, which can reduce the vibration generated when the tool head interacts with the workpiece, thereby avoiding the tool head from having an adverse effect on the workpiece processing due to vibration.

[0024] Specifically, Figure 1As shown, the tool handle 1 includes a fixing member 11, a mounting member 12 and a vibration damping member 13. The vibration damping member 13 is a U-shaped structure. The vibration damping member 13 includes a U-shaped groove. The vibration damping member 13 includes two support arms. There is a U-shaped groove between the two support arms. The fixing member 11 and the mounting member 12 are respectively connected to the two support arms of the vibration damping member 13, wherein the fixing member 11 and the mounting member 12 are columnar structures as a whole. The fixing member 11 and the mounting member 12 are coaxially arranged at opposite side ends of the U-shaped groove of the vibration damping member 13 at intervals. In this embodiment, one end of the tool handle is fixed to the tool holder through the fixing member 11, and the other end is connected to the tool head through the mounting member 12. When the force transmitted by the tool head is transmitted to the tool holder through the mounting member 12, it will pass through the vibration damping member 13. The vibration damping member 13 decomposes and blocks the transmitted force, and greatly weakens the force transmitted to the fixing member 11 in the axial direction, so that the force transmitted to the fixing member 11 in the axial direction is greatly weakened. The force of the tool holder is reduced, thereby reducing the back vibration of the tool head; at the same time, the vibration damper 13 is a U-shaped structure, the fixing part 11 and the mounting part 12 are respectively connected to the two ends of the U-shaped groove of the vibration damper 13, and the two are coaxially spaced. Then, when the tool head acts on the workpiece and the tool head is subjected to the rebound force of the workpiece, the tool head carries the mounting part 12 and moves axially toward the fixing part 11. The U-shaped groove of the vibration damper 13 will give the mounting part 12 space for axial displacement, thereby interrupting the direct force transmission of the mounting part 12 to the fixing part 11. In addition, the U-shaped structure of the vibration damper 13 can greatly decompose the axial force when transmitting the force, which has a great vibration reduction effect, so that when the tool head processes the workpiece, the tool head has a small amplitude and is not easy to affect the processing of the workpiece, thereby improving the processing accuracy of the workpiece, reducing the roughness of the surface of the processed part, and improving the smoothness.

[0025] Further, the vibration damping member 13 is further described; Figure 1 , Figure 5 As shown, the vibration damper 13 includes a first columnar portion 131, a second columnar portion 132 and an arc portion 133, the arc portion 133 is basically a semi-arc structure, the first columnar portion 131 and the second columnar portion 132 are basically straight column structures, the first columnar portion 131 and the second columnar portion 132 are spaced and parallelly arranged at both ends of the arc portion 133, so that the vibration damper 13 forms a U-shaped structure, along the axial direction of the fixing member 11, the spacing between the first columnar portion 131 and the second columnar portion 132 is the width of the U-shaped groove; wherein, the end surfaces of the first columnar portion 131 and the second columnar portion 132 away from the arc portion 133 are flush, and the vibration damper 13 is symmetrical along the center line between the first columnar portion 131 and the second columnar portion 132, thereby ensuring the balance of the vibration damper 13 when transmitting the force and reducing stress concentration.

[0026] In this embodiment, the axial direction of the fixing member 11 is perpendicular to the length extension direction of the first columnar portion 131 .

[0027] like Figure 1 , Figure 2 As shown, there is a spacing between the first columnar portion 131 and the second columnar portion 132, and the spacing forms a buffer space. When the cutter head and the workpiece generate anti-vibration, the cutter head drives the mounting member 12 to move axially toward the fixing member 11, and the buffer space provides displacement space for the mounting member 12 to avoid direct collision between the mounting member 12 and the fixing member 11, thereby generating elastic buffering to a certain extent, absorbing the vibration force of the cutter head and thus eliminating vibration.

[0028] It should be noted that, in the present application, the length extension direction parallel to the first columnar portion 131 and the second columnar portion 132 is the first direction, the direction parallel to the axis of the fixing member 11 and the mounting member 12 is the second direction, and the first direction is perpendicular to the second direction; wherein, the direction perpendicular to the first direction and perpendicular to the second direction is the third direction.

[0029] It should be noted that, in the present embodiment, the vibration damper 13 is made by whole plate wire cutting, thereby ensuring the integrity of each part of the vibration damper 13, reducing stress concentration at the bending part of the vibration damper 13, and enabling the vibration damper 13 to evenly transmit the force when subjected to the force, thereby reducing the probability of damage to the vibration damper 13; and, the fixing part 11 is made of 50# steel, and the mounting part 12 is made of 50# steel, thereby making the fixing part 11 and the mounting part 12 have better wear resistance, better resistance to dynamic loads and impact, and can ensure the working stability and service life of the tool.

[0030] Further, such as Figure 5 As shown, along the axial direction of the fixing member 11, the axial thickness of the first columnar portion 131 is L1, L1=15.5~16.5mm, and the axial thickness of the second columnar portion 132 is L2, L2=15.5~16.5mm; Figure 4 As shown, perpendicular to the axial direction of the fixing member 11, that is, along the third direction, the width of the first columnar portion 131 is L3, L3=21.5~22.5mm, and the width of the second columnar portion 132 is L4, L4=21.5~22.5mm; the radius of the inner arc surface of the vibration damping member 13 is set to R1, R1=7.0~8.0mm, and the radius of the outer arc surface of the vibration damping member 13 is set to R2, R2=23.0~24.0mm.

[0031] Preferably, L1=15.7-16.3mm, L2=15.7-16.3mm, L3=21.7-22.3mm, L4=21.7-22.3mm, R1=7.2-7.8mm, R2=23.2-23.8mm.

[0032] Furthermore, L1 is set to any one of 15.7mm, 15.8mm, 15.9mm, 16.0mm, 16.1mm, 16.2mm, and 16.3mm, and L2=L1; L3 is set to any one of 21.7mm, 21.8mm, 21.9mm, 22.0mm, 22.1mm, 22.2mm, and 22.3mm, and L3=L4, and the width of the arc portion 133 is equal to L3; R1 is set to any one of 7.2mm, 7.3mm, 7.4mm, 7.5mm, 7.6mm, 7.7mm, and 7.8mm; R2 is set to any one of 23.2mm, 23.3mm, 23.4mm, 23.5mm, 23.6mm, 23.7mm, and 23.8mm.

[0033] In another optional embodiment of the present application, Figure 4 As shown, in the third direction, the width of the vibration damper 13 is consistent, that is, the widths of the first columnar portion 131 , the second columnar portion 132 and the arc portion 133 are the same.

[0034] Further, such as Figures 2 to 3 , Figure 5 As shown, a first mounting hole 134 is provided at one end of the first columnar portion 131 away from the arc-shaped portion 133, and the fixing member 11 includes a first mounting column 111 and a first connecting column 114, the first mounting column 111 and the first connecting column 114 are coaxially arranged, and the first mounting hole 134 is used to install the first mounting column 111, and the first mounting hole 134 passes through the first columnar portion 131 along the axial direction of the fixing member 11; the inner diameter of the first mounting hole 134 is equal to the outer diameter of the first mounting column 111, so that the first mounting column 111 can be inserted into the first mounting hole 134 faster and more easily, so that the connection between the first mounting column 111 and the first mounting hole 134 will not be too tight or too loose. Among them, the axial length of the first mounting column 111 is smaller than the axial length of the first mounting hole 134, and the length difference between the two is not much. The end of the first mounting column 111 away from the first connecting column 114 is provided with a chamfer so that the first mounting column 111 can be smoothly inserted into the first mounting hole 134; in this embodiment, the first connecting column 114 and the first mounting column 111 are cylindrical structures, and the outer diameter of the first connecting column 114 is larger than the outer diameter of the first mounting column 111, so that the first connecting column 114 and the outer wall surface of the first columnar portion 131 form a limit.

[0035] It should be noted that the outer edges of the fixing member 11 and the first columnar portion 131 are welded to ensure the connection stability between the fixing member 11 and the first columnar portion 131 .

[0036] Further, such as Figures 2 to 3 , Figure 5As shown, a second mounting hole 135 is provided at one end of the second columnar portion 132 away from the arc-shaped portion 133, and the mounting member 12 includes a second mounting column 121 and a second connecting column 126, the second mounting column 121 and the second connecting column 126 are coaxially arranged, and the second mounting hole 135 is used to install the second mounting column 121, and the second mounting hole 135 passes through the second columnar portion 132 along the axial direction of the mounting member 12; the inner diameter of the second mounting hole 135 is equal to the outer diameter of the second mounting column 121, so that the second mounting column 121 can be inserted into the second mounting hole 135 faster and more easily, so that the connection between the second mounting column 121 and the second mounting hole 135 will not be too tight or too loose. Among them, the axial length of the second mounting column 121 is smaller than the axial length of the second mounting hole 135, and the length difference between the two is not much. The end of the second mounting column 121 away from the second connecting column 126 is provided with a chamfer so that the second mounting column 121 can be smoothly inserted into the second mounting hole 135; in this embodiment, the second connecting column 126 and the second mounting column 121 are cylindrical structures, and the outer diameter of the second connecting column 126 is larger than the outer diameter of the second mounting column 121, so that the second connecting column 126 and the outer wall surface of the second columnar portion 132 form a limit.

[0037] It should be noted that the outer edges of the mounting member 12 and the second columnar portion 132 are welded to ensure the connection stability between the mounting member 12 and the second columnar portion 132 .

[0038] In this embodiment, the first mounting column 111 and the second mounting column 121 have the same outer diameter, the first mounting hole 134 and the second mounting hole 135 have the same inner diameter, and the first connecting column 114 and the second connecting column 126 have the same outer diameter; the first mounting hole 134, the second mounting hole 135, the first connecting column 114, the second connecting column 126, the first mounting column 111, and the second mounting column 121 are all coaxially arranged; wherein, the diameter of the second connecting column 126 is R3, R3=17.5~18.5mm, and the diameter of the second mounting column 121 is R4, R4=11.5~12.5mm.

[0039] Preferably, R3=17.7-18.3mm, R4=11.7-12.3mm; specifically, R3 can be set to any one of 17.7mm, 17.8mm, 17.9mm, 18.0mm, 18.1mm, 18.2mm, 18.3mm; R4 can be set to any one of 11.7mm, 11.8mm, 11.9mm, 12.0mm, 12.1mm, 12.2mm, 12.3mm. The diameter of the first connecting column 114 is the same as the diameter of the second connecting column 126, and the diameter of the first mounting column 111 is the same as the diameter of the second mounting column 121.

[0040] Further, such as Figure 5As shown, the lengths of the first columnar portion 131 and the second columnar portion 132 are the same, set to between 26.0 and 27.0 mm, preferably set to 26.5 mm; the distance from the center of the first mounting hole 134 to the end of the first columnar portion 131 away from the arc portion 133 is 15 mm, and the distance from the center of the second mounting hole 135 to the end of the second columnar portion 132 away from the arc portion 133 is 15 mm.

[0041] Based on any of the above embodiments, the fixing member 11 is further described; Figures 1 to 3 As shown, the fixing member 11 includes a first straight surface segment 112 and a first arc segment 113, and the two ends of the first arc segment 113 are respectively connected to the two ends of the first straight surface segment 112, so that the fixing member 11 is a D-shaped structure, wherein the length of the first straight surface segment 112 is less than the radius of the fixing member 11, the length of the first straight surface segment 112 is 7.75-8.75mm, preferably 8.25mm, the length of the first straight surface segment 112 from the axis to the other end of the fixing member 11 is 17mm, and the outer diameter of the fixing member 11 is set to 18mm. In this embodiment, the setting of the first straight surface segment 112 can play a positioning prompt role, which can facilitate the installation of the staff; and when the fixing member 11 is installed with the tool holder, the first straight surface segment 112 can increase the contact area with the tool holder, and at the same time, the first straight surface segment 112 and the first straight surface segment cooperate well to limit the role, ensuring the connection stability of the tool and the tool holder.

[0042] Based on any of the above embodiments, the mounting member 12 is further described; Figures 1 to 4 As shown, the mounting member 12 includes a second straight segment 122 and a second arc segment 123, and the two ends of the second arc segment 123 are respectively connected to the two ends of the second straight segment 122, so that the mounting member 12 is a D-shaped structure; wherein, as Figure 5 As shown, the length of the second straight section 122 is less than the radius of the fixing member 11, the length of the second straight section 122 is 7.75-8.75mm, preferably 8.25mm, the length of the second straight section 122 from the axis to the other end of the fixing member 11 is L5, L5=17mm, and the outer diameter of the mounting member 12 is set to 18mm. In this embodiment, the setting of the second straight section 122 can play a positioning prompt role and can facilitate the installation of the staff; and when the fixing member 11 is installed with the tool holder, the second straight section 122 can increase the contact area with the tool head. At the same time, the second straight section 122 and the second arc section 123 work together to better limit the position, ensuring the connection stability between the handle and the tool head.

[0043] It should be noted that the first straight surface segment 112 and the second straight surface segment 122 are located in the same plane.

[0044] Further, such as Figures 1 to 4As shown, a fixing hole 124 is provided on the mounting member 12, and the fixing hole 124 is coaxially arranged with the mounting member 12. The fixing hole 124 axially penetrates the mounting member 12, that is, the fixing hole 124 penetrates the second connecting column 126 and the second mounting column 121, and the diameter of the fixing hole 124 is R5, and the diameter of the fixing hole 124 is smaller than the diameter of the second mounting hole 135; at least one threaded mounting hole 125 is provided on the mounting member 12, and one end of the threaded mounting hole 125 is opened on the second straight surface section 122, and the other end is connected to the fixing hole 124; wherein, the axis of the threaded mounting hole 125 is perpendicular to the axis of the fixing member 11, that is, when the cutter head is inserted into the fixing hole 124, by inserting a bolt into the threaded mounting hole 125, tightening the bolt to press the cutter head and the mounting member 12, thereby realizing stable installation of the cutter head and the tool handle.

[0045] In this embodiment, the threaded mounting hole 125 is opened on the second straight surface section 122 to provide a mounting plane for the bolt, so as to facilitate the connection stability between the bolt and the mounting member 12 .

[0046] Furthermore, the diameter R5 of the fixing hole 124 is 4.03mm-4.10mm, and the threaded mounting hole 125 is an M6 thread bolt hole. There are two threaded mounting holes 125, which are arranged in parallel and spaced apart. The distance between the axes of the two threaded mounting holes is 8mm, which are the first threaded mounting hole 125 and the second threaded mounting hole 125. The distance between the first threaded hole and the vibration damping member 13 is greater than the distance between the second threaded mounting hole 125 and the vibration damping member 13, and the axial spacing between the first threaded mounting hole 125 and the near end of the mounting member 12 is 8mm, thereby ensuring the force balance between the connection points of the cutter head and the mounting member 12, improving the stability of the force transmitted by the cutter head to the handle, and making the vibration damping effect of the handle on the cutter head better.

[0047] It should be noted that the various embodiments of the present application can be arbitrarily combined into a new embodiment if the solutions do not conflict and the technical solutions can coexist.

[0048] The present application is described in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A tool for cutting, characterized in that: It comprises a knife handle (1) and a knife head, wherein the knife head is connected to the knife holder via the knife handle (1); Wherein, the knife handle (1) comprises: A fixing member (11), wherein the knife handle (1) is connected to the knife holder via the fixing member (11); A mounting member (12), wherein the knife handle (1) is connected to the knife head via the mounting member (12); The vibration damping member (13) is a U-shaped structure, and the fixing member (11) and the mounting member (12) are coaxially arranged at two ends of the U-shaped groove of the vibration damping member (13) with a spacing.

2. The tool for cutting according to claim 1, characterized in that The vibration damping member (13) comprises a first columnar portion (131), a second columnar portion (132) and an arc-shaped portion (133); the first columnar portion (131) and the second columnar portion (132) are arranged in parallel with each other at intervals; and the axis direction of the fixing member (11) is perpendicular to the length extension direction of the first columnar portion (131); One end of the arc-shaped portion (133) is connected to the first column-shaped portion (131), and the other end is connected to the second column-shaped portion (132), so as to form a U-shaped structure.

3. The tool for cutting according to claim 2, characterized in that: A first mounting hole (134) is provided at one end of the first columnar portion (131) away from the arc-shaped portion (133); the fixing member (11) comprises a first mounting column (111); and the first mounting hole (134) is used to mount the first mounting column (111); A second mounting hole (135) is provided at one end of the second columnar portion (132) away from the arc-shaped portion (133); the mounting member (12) comprises a second mounting column (121); and the second mounting hole (135) is used to mount the second mounting column (121); Wherein, the first mounting hole (134) and the second mounting hole (135) are coaxially arranged.

4. The tool for cutting according to claim 2, characterized in that: Along the axial direction of the fixing member (11), the axial thickness of the first columnar portion (131) is 15.5 to 16.5 mm, and the axial thickness of the second columnar portion (132) is 15.5 to 16.5 mm; In a direction perpendicular to the axial direction of the fixing member (11), the width of the first columnar portion (131) is 21.5 to 22.5 mm, and the width of the second columnar portion (132) is 21.5 to 22.5 mm; The fixing member (11) and the first columnar portion (131) are welded at a joint, and the mounting member (12) and the second columnar portion (132) are welded at a joint.

5. The tool for cutting according to claim 1, characterized in that: The radius of the inner arc surface of the vibration damping member (13) is set to 7.0-8.0 mm, and the radius of the outer arc surface of the vibration damping member (13) is set to 23.0-24.0 mm.

6. The tool for cutting according to claim 1, characterized in that: The fixing member (11) is made of 50# steel; and / or the mounting member (12) is made of 50# steel; Wherein, the vibration damping member (13) is made by cutting a whole plate.

7. The tool for cutting according to claim 1, characterized in that The fixing member (11) comprises a first straight surface segment (112) and a first arc segment (113), two ends of the first arc segment (113) are respectively connected to two ends of the first straight surface segment (112), and the fixing member (11) is a D-shaped structure; and / or, The mounting member (12) comprises a second straight surface segment (122) and a second arc segment (123), two ends of the second arc segment (123) are respectively connected to two ends of the second straight surface segment (122), and the mounting member (12) is a D-shaped structure; Wherein, the first straight surface section (112) and the second straight surface section (122) are located in the same plane.

8. The tool for cutting according to claim 7, characterized in that The mounting member (12) is provided with a fixing hole (124), the fixing hole (124) is coaxially arranged with the mounting member (12), and the fixing hole (124) penetrates the mounting member (12) in the axial direction; The mounting member (12) is provided with a threaded mounting hole (125), one end of the threaded mounting hole (125) is open on the second straight surface section (122), and the other end is communicated with the fixing hole (124); Wherein, the axis of the threaded mounting hole (125) is perpendicular to the axis of the fixing member (11).

9. The tool for cutting according to claim 8, characterized in that The length of the first straight surface section (112) is smaller than the radius of the fixing member (11), and the length of the second straight surface section (122) is smaller than the radius of the mounting member (12); The fixing member (11) has a diameter of 17.5 to 18.5 mm, and the first straight section (112) has a length of 7.75 to 8.75 mm; The diameter of the mounting piece (12) is 17.5 to 18.5 mm, and the length of the second straight surface section (122) is 7.75 to 8.75 mm.

10. The tool for cutting according to claim 8, characterized in that The diameter of the fixing hole (124) is set at 4.03 mm to 4.10 mm; The threaded mounting holes (125) are provided in two numbers, the two threaded mounting holes (125) are arranged in parallel and spaced apart, and the threaded mounting holes (125) are M6 thread bolt holes; The distance between the axes of the two screw hole mounting holes is 8 mm, and the distance between the axis of the screw hole mounting hole far from the vibration damping member (13) and the near end of the mounting member (12) is 8 mm.

Images