CN219379005U

CN219379005U - Tool bit and tool device

Info

Publication number: CN219379005U
Application number: CN202320579708.1U
Authority: CN
Inventors: 幸志成; 幸楚皓
Original assignee: Chongqing Xinchenghao Electromechanical Co ltd
Current assignee: Chongqing Xinchenghao Electromechanical Co ltd
Priority date: 2023-03-22
Filing date: 2023-03-22
Publication date: 2023-07-21
Anticipated expiration: 2033-03-22

Abstract

The utility model discloses a tool bit, which comprises: a cylinder; the processing bodies are arranged to be more than five and distributed around the outer side of the cylinder, the inner sides of the processing bodies are fixedly connected with the cylinder, the outer sides of the processing bodies are provided with base surfaces which face obliquely downwards and are wide at the upper part and narrow at the lower part, the base surfaces of the processing bodies are sequentially arranged and connected, and an included angle is formed between any two adjacent base surfaces; the base surface is provided with a groove, the groove is triangular pyramid-shaped and is in a table shape and is connected with the top surface and the bottom surface of the processing body in an extending mode, two edge lines of the groove are located on the base surface, and an included angle between the two edge lines of the top edge of the groove is 40-80 degrees. According to the structure, the two edge lines of the top edge of the groove are used as the positions of the first edge parts, the first edge parts are used for reducing materials of the workpiece, the machining bodies are arranged in a plurality, the tool bit is provided with the plurality of first edge parts, the first edge parts are switched to reduce materials of the workpiece, the tool bit can have longer service time, and the service life of the tool bit is prolonged.

Description

Tool bit and tool device

Technical Field

The utility model relates to the technical field of machining tools, in particular to a tool bit and a tool device.

Background

In machining, a tool is required to be mounted on a machine tool for performing reduced material machining on a workpiece. Specifically, the end of the cutter is provided with a cutter head, the cutter head is provided with a blade part, the blade part is used for contacting with a workpiece, and the workpiece and the blade part relatively move to realize the material reduction processing of the workpiece. Typically, the cutting insert has only one blade portion, and the cutting insert can only be replaced when the blade portion wears (e.g., some cutting inserts have a coating on their surface, and such cutting inserts cannot regain a sharp blade portion by sharpening). Therefore, the service life of the cutter head is short, a new cutter head needs to be frequently replaced, and the machining cost is increased.

Disclosure of Invention

The utility model aims to provide a cutter head which can solve the problems that the service life is short and frequent replacement is needed.

The utility model also provides a cutter device with the cutter head.

According to a first aspect of the present utility model, there is provided a cutter head comprising: a cylinder; the processing bodies are arranged to be more than five and distributed around the outer side of the cylinder body, the inner side of each processing body is fixedly connected with the cylinder body, the outer side of each processing body is provided with a base surface which faces obliquely downwards and is wide at the upper part and narrow at the lower part, the base surfaces of each processing body are sequentially arranged and connected, and an included angle is formed between any two adjacent base surfaces; the base surface is provided with a groove, the groove is triangular pyramid-shaped and is connected with the top surface and the bottom surface of the processing body in an extending mode, two edge lines of the groove are located on the base surface, and an included angle between the two edge lines of the top edge of the groove is 40-80 degrees.

According to the cutter head, the included angle between the base surface and the bottom surface of the machining body is 105-135 degrees.

According to the cutter head, an included angle between one side wall of the groove and the horizontal plane is 60-75 degrees.

According to one of the tool bits, the angle between the other side wall of the groove and the horizontal plane is 60-75 degrees.

According to the one tool bit, the number of the machining bodies is more than 6.

According to the cutter head, the processing body and the cylinder body are of an integrated structure.

According to the cutter head, one side of each cylinder body is provided with a clamping groove, the other side of each cylinder body is provided with a clamping part matched with the clamping groove, the inner side of each cylinder body surrounds a through hole, and the cylinder body is inserted into the through hole.

According to the cutter head, the outer side of the bottom of the cylinder body is provided with a convex edge, and the processing body is provided with a limiting surface positioned at the top of the convex edge.

According to a second aspect of the present utility model, there is provided a cutter device comprising a cutter holder, a screw and a cutter head as described above, wherein the end of the cutter holder has a support seat and a limit portion, the top surface of the support seat is provided with a threaded hole, the limit portions are provided in two and are located at the sides of the top surface of the support seat, the sides of the two limit portions respectively abut against the base surface of a processing body, the screw is inserted into the threaded hole through the cylinder, and the head of the screw is pressed on the top of the processing body.

The scheme has at least one of the following beneficial effects: according to the structure, the top edge two edge lines of the groove are used as the positions of the first edge parts, the first edge parts are used for reducing materials of the workpiece, the machining bodies are arranged in a plurality, the tool bit is provided with the plurality of first edge parts, the first edge parts are switched to reduce materials of the workpiece, the tool bit can have longer service time, the service life of the tool bit is prolonged, the tool bit does not need to be replaced with a new tool bit frequently, and the machining cost is reduced.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described below with reference to the drawings and examples;

FIG. 1 is a block diagram of one embodiment of a tool bit of the present utility model;

FIG. 2 is a cross-sectional view of the tool tip shown in FIG. 1;

FIG. 3 is a block diagram of a working body of another embodiment of a tool bit of the present utility model;

FIG. 4 is a block diagram of a cartridge of another embodiment of a tool tip according to the present utility model;

fig. 5 is a block diagram of a tool holder in an embodiment of the tool apparatus of the utility model.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, greater than, less than, exceeding, etc. are understood to exclude this number, and above, below, within, etc. are understood to include this number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 and 2, a tool bit according to an embodiment of the present utility model includes a cylinder 10 and a machining body 20, wherein the machining body 20 is disposed in five or more ways and is distributed around an outer side of the cylinder 10, an inner side of the machining body 20 is fixedly connected to the cylinder 10, an outer side of the machining body 20 has a base surface 21 facing obliquely downward and having a wide upper portion and a narrow lower portion, the base surfaces 21 of the machining bodies 20 are sequentially arranged and connected, and a certain angle is formed between any two adjacent base surfaces 21. Wherein, the base surface 21 is provided with a groove 22, the groove 22 is in a triangular pyramid table shape and is connected with the top surface and the bottom surface of the processing body 20 in an extending way, and two edge lines of the groove 22 are positioned on the base surface 21. The included angle between the two edge lines of the top edge of the groove 22 is beta 5, and beta 5 is more than or equal to 40 degrees and less than or equal to 80 degrees.

With the above structure, the grinding wheel grinds the working body 20 to generate the groove 22 when the tool bit is produced.

In the present embodiment, the angle between the base surface 21 and the bottom surface of the working body 20 is β1, wherein 105 ° Σ1 Σ135 °. The included angle between the two side walls of the groove 22 is beta 2, beta 2 is more than or equal to 45 degrees and less than or equal to 75 degrees, in addition, the included angle between one side wall of the groove 22 and the horizontal plane is beta 3, beta 3 is more than or equal to 60 degrees and less than or equal to 75 degrees, and the included angle between the other side wall of the groove 22 and the horizontal plane is beta 4, and beta 4 is more than or equal to 60 degrees and less than or equal to 75 degrees.

Referring to fig. 1 and 2, in one embodiment, the working body 20 is integrally formed with the barrel 10 by machining a single piece of substrate to provide the tool bit during manufacture.

Referring to fig. 3 and 4, in another embodiment, each cylinder 10 has a clamping groove 23 on one side, and a clamping portion 24 adapted to the clamping groove 23 on the other side, so that adjacent cylinders 10 are assembled by matching the clamping portion 24 with the clamping groove 23, a through hole is defined inside each cylinder 10, and the cylinders 10 are inserted into the through holes. The cylinder 10 may be in interference fit with the inner wall of the through hole, so that the cylinder 10 is fixedly connected with the processing body 20, and the tool bit forms a relatively stable integral structure. With this structure, the processed body 20 can be produced from a smaller material, and the material can be fully utilized.

Further, the outer side of the bottom of the cylinder 10 is provided with a convex edge 11, and the processing body 20 is provided with a limiting surface positioned at the top of the convex edge 11. The limiting surface is downward arranged and pressed on the top surface of the convex edge 11, so that the bottom surface of each processing body 20 is flush, and the processing body is convenient to install on the tool apron 30.

The utility model also proposes a tool device comprising a tool holder 30, a screw and a tool bit as described above. Referring to fig. 5, the end of the tool holder 30 has a supporting seat 31 and a limiting portion 32, a threaded hole 311 is provided on the top surface of the supporting seat 31, and the limiting portions 32 are provided in two and are located at sides of the top surface of the supporting seat 31. During assembly, the tool bit is placed on the supporting seat 31, the bottom surface of the processing body 20 is abutted against the top surface of the supporting seat 31, the side surfaces of the two limiting parts 32 are respectively abutted against the base surface 21 of one processing body 20, the screw penetrates through the cylinder body 10 and is inserted into the threaded hole 311, and the head of the screw is pressed on the top of the processing body 20.

Specifically, the side surfaces of the two stopper portions 32 abut against the base surfaces 21 of the two working bodies 20. The two working bodies 20 may be arranged adjacently and in connection; or alternatively, the two working bodies 20 may be arranged at intervals, i.e. one working body 20 is spaced between the two working bodies 20. The machining body 20 can be limited up and down through the head of the screw and the convex edge 11, so that the tool bit keeps stable structure when machining a workpiece.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. A tool bit, comprising:

a cylinder;

the processing bodies are arranged to be more than five and distributed around the outer side of the cylinder body, the inner side of each processing body is fixedly connected with the cylinder body, the outer side of each processing body is provided with a base surface which faces obliquely downwards and is wide at the upper part and narrow at the lower part, the base surfaces of each processing body are sequentially arranged and connected, and an included angle is formed between any two adjacent base surfaces;

the base surface is provided with a groove, the groove is triangular pyramid-shaped and is connected with the top surface and the bottom surface of the processing body in an extending mode, two edge lines of the groove are located on the base surface, and an included angle between the two edge lines of the top edge of the groove is 40-80 degrees.

2. A tool bit according to claim 1, wherein the angle between the base surface and the bottom surface of the working body is 105 ° to 135 °.

3. A tool bit according to claim 2, wherein the recess has a sidewall at an angle of 60 ° to 75 ° to the horizontal.

4. A tool bit according to claim 3, wherein the angle between the other side wall of the recess and the horizontal is 60 ° to 75 °.

5. A tool bit according to any one of claims 1 to 4, wherein the number of working bodies is more than 6.

6. A tool bit according to any one of claims 1 to 4, wherein the working body is of unitary construction with the barrel.

7. A tool bit according to any one of claims 1 to 4, wherein each barrel has a slot on one side and a snap-fit portion on the other side for fitting the slot, the inner side of each barrel defines a through hole, and the barrel is inserted into the through hole.

8. The tool bit of claim 7, wherein the bottom outer side of the barrel has a convex edge, and the working body has a limiting surface at the top of the convex edge.

9. The cutter device is characterized by comprising a cutter seat, a screw and the cutter head according to any one of claims 1 to 8, wherein the end part of the cutter seat is provided with a supporting seat and a limiting part, the top surface of the supporting seat is provided with a threaded hole, the limiting parts are arranged at two sides of the top surface of the supporting seat, the side surfaces of the two limiting parts are respectively abutted against the base surface of a processing body, the screw penetrates through the cylinder body and is inserted into the threaded hole, and the head part of the screw is pressed at the top of the processing body.