CN219053033U

CN219053033U - Milling cutter structure with reuse

Info

Publication number: CN219053033U
Application number: CN202223368486.3U
Authority: CN
Inventors: 梁旭海
Original assignee: Dongguan Hanhe Industry Co ltd
Current assignee: Dongguan Hanhe Industry Co ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-05-23
Anticipated expiration: 2032-12-14

Abstract

The utility model belongs to the technical field of milling cutters, and particularly relates to a milling cutter structure with recycling function, which comprises a cutter handle and a cutter head, wherein the cutter head is positioned at the end part of the cutter handle and is connected with the end part of the cutter handle, and a connecting part is arranged on the cutter head; the connecting component comprises a blade groove which is arranged on one side of the end part of the cutter handle and matched with the cutter head, the cutter head is connected with the cutter handle, a first positioning protrusion is arranged at the bottom of one end of the cutter head, a second positioning protrusion is arranged at the bottom of the other end of the cutter handle, a first positioning sliding groove which is matched with the first positioning protrusion is arranged on the surface of the cutter handle, screw holes are formed in the surface of the cutter handle and the surface of the cutter head, and counter bores are formed in the end parts of the screw holes on the surface of the cutter handle. According to the utility model, the cutter tip part and the cutter tail part of the cutter head are arranged in the same way, and the top part and the bottom part of the middle part of the cutter are provided with the second positioning sliding grooves, so that the cutter tail part can be used as the cutter tip part continuously after the cutter tip part is damaged, and the service life is prolonged.

Description

Milling cutter structure with reuse

Technical Field

The utility model belongs to the technical field of milling cutters, and particularly relates to a milling cutter structure with recycling function.

Background

The knife is generally specially designed and manufactured for machining a workpiece of a specific shape, and is generally used for machining an angle surface, a groove surface, a special-shaped hole, a step surface, and the like, and the edge shape of the cutting edge of the milling cutter is generally adapted to the outer shape of the workpiece so as to form a required specific shape on the workpiece through one-time machining.

At present, the milling cutter is generally fixed by adopting the installation between round head screws in the use process, then the round head screws are easy to cause scraps after installation, and when the cutter head and the cutter handle are directly connected by adopting the round head screws, the milling cutter is not easy to detach, and the existing cutter head cannot be continuously used after being broken at one end, so that the new cutter head can be replaced.

Therefore, it is necessary to invent a milling cutter structure with recycling to solve the above problems.

Disclosure of Invention

The utility model provides a milling cutter structure with recycling function, wherein the cutter tip part and the cutter tail part of the cutter head are arranged in the same way, and the top part and the bottom part of the middle part of the cutter are respectively provided with a second positioning sliding groove, so that the cutter tail part can be used as the cutter tip part to be continuously used after the cutter tip part is damaged, the service life is prolonged, and the problems in the background art are solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a milling cutter structure with reuse, includes handle of a knife and tool bit, the tool bit is located the tip phase connection of handle of a knife, and is provided with connecting element;

the connecting component comprises a blade groove which is arranged on one side of the end part of the cutter handle and matched with the cutter head, the cutter head is connected with the cutter handle, a first positioning protrusion is arranged at the bottom of one end of the fastener head, a second positioning protrusion is arranged at the bottom of the other end of the fastener head, a first positioning sliding groove which is matched with the first positioning protrusion is arranged on the surface of the cutter handle, screw holes are formed in the surface of the cutter handle and the surface of the fastener head, counter bores are formed in the end parts of the screw holes on the surface of the cutter handle, springs are arranged inside the counter bores, and fastening screws are adopted between the fastener head and the cutter handle.

Further, the tool bit is irregularly shaped, and includes tip portion, afterbody and sword middle part, the cross-sectional shape of tip portion and afterbody is trapezoidal setting, and the afterbody is 180 symmetry settings of tip portion about the central point in sword middle part.

Further, the top and the bottom of the middle part of the cutter head are provided with second positioning sliding grooves matched with the second positioning protrusions, and the two second positioning sliding grooves are symmetrically arranged at 180 degrees relative to the central point of the middle part of the cutter head.

Further, the blade groove comprises a first positioning surface, a second positioning surface and a third positioning surface, wherein an included angle of 45 degrees is formed between the first positioning surface and the second positioning surface, and the position of the included angle is an arc surface.

Further, the second positioning surface is arranged in a slope shape and is provided with a convex surface, and the convex surface divides the second positioning surface into two parts for arrangement, and a concave surface is formed between the second positioning surface and the third positioning surface.

Further, a positioning groove is formed in the surface of the third positioning surface, and one end of the positioning groove is provided with an arc slope.

Further, the fastening screw is a semicircular plum blossom screw, and the inner diameter size of the counter bore is larger than that of the screw hole.

The utility model has the technical effects and advantages that:

1. the utility model discloses an adopt semicircle plum blossom screw and fastening head mutually support to connect tool bit and handle of a knife to prevent that conventional connected mode from causing the shelves bits.

2. According to the utility model, the counter bore is formed, and the springs are arranged in the counter bore, so that when the cutter head is dismounted, the fastening head is sprung under the action of the springs, and the fastening head is convenient to take down, so that the cutter head is convenient to dismount.

3. According to the utility model, the cutter tip part and the cutter tail part of the cutter head are arranged in the same way, and the top part and the bottom part of the middle part of the cutter are provided with the second positioning sliding grooves, so that the cutter tail part can be used as the cutter tip part continuously after the cutter tip part is damaged, and the service life is prolonged.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 shows a schematic overall structure of an embodiment of the present utility model;

FIG. 2 shows an exploded view of the overall structure of an embodiment of the present utility model;

FIG. 3 illustrates an enlarged view of portion A of FIG. 2 in accordance with an embodiment of the present utility model;

in the figure: 1. a knife handle; 2. a cutter head; 201. a knife tip; 202. a knife tail; 203. the middle part of the knife; 204. a second positioning chute; 3. a blade slot; 301. a first positioning surface; 302. a second positioning surface; 303. a third positioning surface; 304. a convex surface; 305. a concave surface; 306. a positioning groove; 4. a fastening head; 5. a first positioning protrusion; 6. a second positioning protrusion; 7. a first positioning chute; 8. screw holes; 9. countersink; 10. and (3) a spring.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

At present, in the using process of the milling cutter, the round head screws are generally adopted for installation and fixation, then the round head screws are easy to cause scraps after installation, when the round head screws are adopted for directly connecting the cutter head and the cutter handle, the milling cutter is not easy to detach, the existing cutter head cannot be continuously used after one end of the existing cutter head is broken, and only a new cutter head can be replaced;

the utility model adopts the semicircular plum blossom screw and the fastening head 4 to mutually cooperate to connect the tool bit 2 and the tool shank 1, thereby preventing the conventional connection mode from causing the scraps; the counter bore 9 is arranged, and the spring 10 is arranged in the counter bore 9, so that when the cutter head 2 is dismounted, the fastening head 4 is sprung under the action of the spring 10, and the fastening head 4 is convenient to take down, so that the cutter head 2 is convenient to dismount; the cutter tip part 201 and the cutter tail part 202 of the cutter head 2 are arranged identically, and the top part and the bottom part of the cutter middle part 203 are provided with the second positioning sliding grooves 204, so that the cutter tail part 202 can be used as the cutter tip part 201 continuously after the cutter tip part 201 is damaged, and the service life is prolonged.

The utility model provides a milling cutter structure with recycling, which is shown in figures 1-3, and comprises a cutter handle 1 and a cutter head 2, wherein the cutter head 2 is positioned at the end part of the cutter handle 1 and is connected with a connecting part;

the connecting component comprises a blade groove 3 which is formed in one side of the end part of the cutter handle 1 and matched with the cutter head 2, the cutter head 2 is connected with the cutter handle 1, a first positioning bulge 5 is arranged at the bottom of one end of the cutter head 4, a second positioning bulge 6 is arranged at the bottom of the other end of the cutter head, a first positioning chute 7 which is matched with the first positioning bulge 5 is formed in the surface of the cutter handle 1, screw holes 8 are formed in the surface of the cutter handle 1 and the surface of the cutter head 4, counter bores 9 are formed in the end part of the screw holes 8 on the surface of the cutter handle 1, springs 10 are arranged in the counter bores 9 at the top of the screw holes 8 on the cutter handle 1, the cutter head 2 is pressed into the blade groove 3, then the cutter head 4 is placed on the surface of the cutter handle 1, the first positioning bulge 5 of the cutter handle 1 enters the first positioning chute 7, the second positioning bulge 6 enters the second positioning chute 204 of the cutter head 2, and then the half-round plum blossom screw 8 is used for screwing in the cutter head 1, and the cutter head 1 is fixed by adopting the screw holes 8.

As shown in fig. 1-3, the cutter head 2 is irregularly shaped and includes a cutter tip 201, a cutter tail 202 and a cutter middle 203, the cross-sectional shapes of the cutter tip 201 and the cutter tail 202 are both trapezoidal, and the cutter tail 202 is 180 ° symmetrical to the cutter tip 201 about the center point of the cutter middle 203.

As shown in fig. 1-3, the top and the bottom of the middle part 203 of the cutter head 2 are provided with second positioning sliding grooves 204 matched with the second positioning protrusions 6, the two second positioning sliding grooves 204 are symmetrically arranged about the center point of the middle part 203 of the cutter head, the cutter head 3 comprises a first positioning surface 301, a second positioning surface 302 and a third positioning surface 303, an included angle of 45 degrees is formed between the first positioning surface 301 and the second positioning surface 302, the included angle is formed in an arc surface, the second positioning surface 302 is in a slope shape and is provided with a convex surface 304, the convex surface 304 divides the second positioning surface 302 into two parts and forms a concave surface 305 with the third positioning surface 303, the cutter head 2 is fixed inside the cutter head 3 under the action of the second positioning protrusions 6 and the second positioning sliding grooves 204, the cutter head 2 is positioned inside the cutter head 3 through the first positioning surface 301, the second positioning surface 302 and the third positioning surface 303, the cutter head 2 is prevented from being deflected, when the cutter head 2 is detached from the cutter head 202, and the cutter head 201 can be placed to the position of the cutter head 201 after the cutter head is detached, and the cutter head 201 can be placed to the position of the cutter head 201.

As shown in fig. 1-3, the surface of the third positioning surface 303 is provided with a positioning groove 306, one end of the positioning groove 306 is provided with an arc slope, the fastening screw is provided with a semicircular plum blossom screw, the inner diameter of the counter bore 9 is larger than that of the screw hole 8, and the semicircular plum blossom screw and the fastening head 4 are matched with each other to connect the tool bit 2 with the tool shank 1, so that the cutting is prevented from being caused by a conventional connection mode.

The working principle of the utility model is as follows:

referring to fig. 1-3 of the specification, when the tool bit 2 is mounted, the tool bit 2 is pressed into the blade groove 3, then a spring 10 is arranged in a counter bore 9 at the top of a screw hole 8 on the tool shank 1, the fastening head 4 is placed on the surface of the tool shank 1, a first positioning protrusion 5 of the fastening head 4 enters a first positioning chute 7 on the surface of the tool shank 1, a second positioning protrusion 6 enters a second positioning chute 204 of the tool bit 2, then a semicircular plum blossom screw is screwed into the screw hole 8, the fastening head 4 and the tool shank 1 are fixed, the tool bit 2 is fixed in the blade groove 3 under the action of the second positioning protrusion 6 and the second positioning chute 204, the tool bit 2 is positioned in the blade groove 3 and is positioned by a first positioning surface 301, a second positioning surface 302 and a third positioning surface 303, so that the tool bit 2 is prevented from being stressed and deflected, and when a tool bit 2 is dismounted, the tool bit 201 is damaged, the position of the tool bit 202 is then placed to the position of the tool bit 201, and the tool bit 1 is continued to be used;

the utility model adopts the semicircular plum blossom screw and the fastening head 4 to mutually cooperate to connect the tool bit 2 and the tool shank 1, thereby preventing the conventional connection mode from causing the scraps;

according to the utility model, the counter bore 9 is arranged, and the spring 10 is arranged in the counter bore 9, so that when the cutter head 2 is dismounted, the fastening head 4 is sprung up under the action of the spring 10, and the fastening head 4 is conveniently taken down, so that the cutter head 2 is conveniently dismounted;

according to the utility model, the cutter point part 201 and the cutter tail part 202 of the cutter head 2 are arranged in the same way, and the top part and the bottom part of the cutter middle part 203 are provided with the second positioning sliding grooves 204, so that the cutter tail part 202 can be used as the cutter point part 201 continuously after the cutter point part 201 is damaged, and the service life is prolonged.

Although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The utility model provides a milling cutter structure with reuse, includes handle of a knife (1) and tool bit (2), its characterized in that: the tool bit (2) is positioned at the end part of the tool shank (1) and is connected with the end part of the tool shank, and a connecting part is arranged;

the utility model provides a connecting element, including handle of a knife (1) tip one side set up with tool bit (2) matched with blade groove (3) to and tool bit (2) are connected with fastening head (4) with handle of a knife (1), the one end bottom of fastening head (4) is provided with first location arch (5), and the other end bottom is provided with second location arch (6), first location spout (7) with first location arch (5) assorted have been seted up on the surface of handle of a knife (1), screw hole (8) have all been seted up on the surface of handle of a knife (1) and the surface of fastening head (4), and counter bore (9) have been seted up to the screw hole (8) tip on handle of a knife (1) surface, and counter bore (9) inside are provided with spring (10), adopt fastening screw to be connected between fastening head (4) and handle of a knife (1).

2. The milling cutter structure with reuse according to claim 1, characterized in that: the cutter head (2) is irregularly shaped, and comprises a cutter tip portion (201), a cutter tail portion (202) and a cutter middle portion (203), wherein the cross section of the cutter tip portion (201) and the cross section of the cutter tail portion (202) are trapezoidal, and the cutter tail portion (202) is 180-degree symmetrical to the center point of the cutter middle portion (203) of the cutter tip portion (201).

3. The milling cutter structure with reuse according to claim 2, characterized in that: the top and the bottom of the knife middle part (203) of the knife head (2) are provided with second positioning sliding grooves (204) matched with the second positioning protrusions (6), and the two second positioning sliding grooves (204) are symmetrically arranged at 180 degrees relative to the central point of the knife middle part (203).

4. The milling cutter structure with reuse according to claim 1, characterized in that: the blade groove (3) comprises a first positioning surface (301), a second positioning surface (302) and a third positioning surface (303), wherein an included angle of 45 degrees is formed between the first positioning surface (301) and the second positioning surface (302), and the position of the included angle is an arc surface.

5. The milling cutter structure with reuse according to claim 4, characterized in that: the second positioning surface (302) is arranged in a slope shape and is provided with a convex surface (304), the convex surface (304) divides the second positioning surface (302) into two parts, and a concave surface (305) is formed between the second positioning surface and the third positioning surface (303).

6. The milling cutter structure with reuse according to claim 4, characterized in that: and a positioning groove (306) is formed in the surface of the third positioning surface (303), and one end of the positioning groove (306) is provided with an arc slope.

7. The milling cutter structure with reuse according to claim 1, characterized in that: the fastening screw is a semicircular plum blossom screw, and the inner diameter size of the counter bore (9) is larger than that of the screw hole (8).