CN221473620U

CN221473620U - Reverse countersink

Info

Publication number: CN221473620U
Application number: CN202323190562.0U
Authority: CN
Inventors: 王海新; 贲智军
Original assignee: Shanghai Juzhikaduo Technology Co ltd
Current assignee: Shanghai Juzhikaduo Technology Co ltd
Priority date: 2023-11-24
Filing date: 2023-11-24
Publication date: 2024-08-06
Anticipated expiration: 2033-11-24

Abstract

The application relates to a reverse countersink, and relates to the technical field of machining equipment. The cutter comprises a cutter handle, a cutter head and a blade, wherein one end of the cutter handle is fixedly arranged on processing equipment, one end of the cutter handle, which is far away from the processing equipment, is provided with a clamping part, and the clamping part is provided with a clamping groove; the cutter head penetrates through the mounting hole in the axis direction of the cutter head, the mounting hole is penetrated by the clamping part, one end of the cutter head is provided with a limiting part communicated with the mounting hole, and the cutter head can rotate and enable the limiting part to be clamped in the clamping groove; the blade sets up on the tool bit, and the blade is provided with a plurality ofly along the circumference interval of tool bit, and when processing equipment drive handle of a knife drove the tool bit and rotates, the blade is used for cutting the work piece. After the machining equipment drives the reverse countersink to cut the workpiece, the limiting part can be separated from the clamping groove only by reversely rotating the tool bit, so that the tool bit and the tool shank can be quickly disassembled and assembled, and the machining efficiency is improved.

Description

Reverse countersink

Technical Field

The application relates to the technical field of machining equipment, in particular to a reverse countersink.

Background

After casting, the surface of the casting is generally rough, and when bolts are required to be mounted on the casting, the bolts cannot be fastened to ensure enough torsion, so that countersink is required to be used for countersinking the mounting surface. In actual processing, in order to reduce the turnover of the casting and improve the working efficiency, the processing mode is to directly use a counter bit to counter the mounting surface of one side of the casting facing the ground after drilling.

In the related art, the reverse countersink machining cutter is generally manufactured in a non-standard mode, the cutter is fixed on the cutter head through a conventional structure, a locating pin is arranged at the lower end of the cutter handle, a locating groove is arranged on the cutter head, the locating groove penetrates through a central hole of the cutter head, the lower end of the cutter handle is arranged in the central hole of the cutter head in a penetrating mode, the locating groove is abutted to the locating pin, and then the locating groove is fixedly connected to the cutter handle through a nut so that the cutter head is fixed.

In realizing the above-described related art, the inventors found that there are at least the following problems in the art: the anti-countersink structure is low in disassembly and assembly efficiency, and when a large number of nuts are required to be machined in batches, the nuts are required to be disassembled by means of tools each time, so that the operation is very inconvenient.

Disclosure of utility model

The application provides a counter bit, which aims to solve the problem of low disassembly and assembly efficiency of a counter bit structure.

The application provides a counter bit which adopts the following technical scheme:

an anti-countersink comprises a cutter handle, a cutter head and a blade;

One end of the cutter handle is fixedly arranged on the processing equipment, one end of the cutter handle, which is far away from the processing equipment, is provided with a clamping part, and the clamping part is provided with a clamping groove;

The cutter head penetrates through the mounting hole in the axis direction of the cutter head, the mounting hole is penetrated by the clamping part, one end of the cutter head is provided with a limiting part communicated with the mounting hole, and the cutter head can rotate and enable the limiting part to be clamped in the clamping groove;

The blade set up in on the tool bit, the blade is followed the circumference interval of tool bit is provided with a plurality of, works as processing equipment drive the handle of a knife drives the tool bit and rotates, the blade is used for cutting the work piece.

Through adopting above-mentioned technical scheme, after processing equipment drive anti-countersink cuts the work piece, only need reverse rotation tool bit alright make spacing portion break away from the joint groove to realize the quick assembly disassembly of tool bit and handle of a knife, and then improved machining efficiency.

Optionally, the joint portion includes two arc surfaces that the symmetry set up and two planes that are parallel to each other, arbitrary the both ends of arc surface respectively with two the tip of plane homonymy is connected, the joint groove with spacing portion all is provided with two, two the joint groove set up in the arc surface with planar intersection position department, and two the joint groove is seted up respectively in two diagonal angle departments of joint portion, two the spacing portion can the joint respectively in two in the joint groove.

Through adopting above-mentioned technical scheme, the structure of the mutual joint of joint groove and spacing portion to and the position of seting up of joint groove can improve the quick installation of tool bit, improves the efficiency of tool bit installation, also makes the tool bit after the installation be difficult for taking place to rock.

Optionally, the clamping groove is provided with a first turning surface and a second turning surface which are connected with each other, and the end parts of the first turning surface and the second turning surface, which are far away from each other, are obliquely arranged towards the direction close to the center of the clamping part.

Through adopting above-mentioned technical scheme, first turn face and second turn face are not on same horizontal plane, can make and install and be difficult for carrying out relative rotation between tool bit and the handle of a knife.

Optionally, the tool bit is provided with the slot type hole, two spacing portion is located respectively the lateral wall of slot type hole width direction, the width size in slot type hole is less than the diameter of mounting hole, the width size in slot type hole is greater than or equal to two the size between the plane, joint portion adaptation is worn to locate in the mounting hole.

By adopting the technical scheme, the clamping part passes through the space between the two limiting parts when the cutter head is installed by limiting the size of the groove type hole in the width direction; and when the cutter head is rotated, the clamping part can be clamped with the limiting part, so that the firmness of clamping between the cutter head and the cutter handle is improved.

Optionally, a plurality of cutting grooves are formed in the outer side wall of the tool bit, the cutting grooves penetrate through one end, close to the machining equipment, of the tool bit, and the blades are arranged on the groove walls of the cutting grooves.

Through adopting above-mentioned technical scheme, the cutting groove can provide accommodation space for the blade, is convenient for install the blade on the tool bit.

Optionally, the blade is detachably connected with the cutter head.

Through adopting above-mentioned technical scheme, be convenient for change the damage blade, also be convenient for install the not fashioned blade of equidimension simultaneously, can practice thrift manufacturing cost.

Optionally, the blade is disposed on a groove wall of the cutting groove by a fixing bolt.

By adopting the technical scheme, the blade can be conveniently and rapidly installed and replaced.

Optionally, two fixing bolts are provided.

Through adopting above-mentioned technical scheme, two fixing bolts can consolidate the blade, reduce the possibility that blade and tool bit take place to deflect in the course of working.

Optionally, the cutting groove includes a first groove surface and a second groove surface that are connected to each other, the first groove surface is an arc surface, the second groove surface is a flat surface, and the insert is disposed on the second groove surface.

Through adopting above-mentioned technical scheme to increase the area of contact between blade and the tool bit, can improve the fastness of blade installation.

Optionally, the second groove surface is provided with a mounting groove, the blade is fixedly arranged in the mounting groove, and the side wall of the blade is attached to the groove wall of the mounting groove.

By adopting the technical scheme, the blade is not easy to slide relative to the cutter head.

In summary, the present application includes at least one of the following beneficial effects:

1. The structure that the limiting part and the clamping groove are mutually clamped is adopted, so that the quick assembly and disassembly of the cutter head and the cutter handle are realized, and the processing efficiency is improved;

2. The detachable connection structure of the blade and the cutter head is adopted, so that the damaged blade is convenient to replace, meanwhile, the blades with different sizes and shapes are convenient to install, and the production cost can be saved;

3. The blade passes through fixing bolt set up in on the cell wall of cutting groove, can be convenient for the quick installation and the change of blade.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present application;

Fig. 2 is a schematic structural diagram for showing a connection relationship between a clamping portion and a limiting portion in an embodiment of the present application;

Fig. 3 is a schematic structural diagram for showing a connection relationship between a mounting groove and a blade in an embodiment of the present application.

In the figure: 1. a knife handle; 11. a clamping part; 111. an arc surface; 112. a plane; 12. a clamping groove; 121. a first turning surface; 122. a second turning surface;

2. A cutter head; 21. a mounting hole; 22. a limit part; 23. a slot-shaped hole; 24. cutting a groove; 241. a first groove surface; 242. a second groove surface; 2421. a mounting groove;

3. A blade; 31. and (5) fixing bolts.

Detailed Description

The application is described in further detail below with reference to fig. 1-3.

The embodiment of the application discloses a reverse countersink. Referring to fig. 1 and 2, the countersink comprises a cutter handle 1, a cutter head 2 and a blade 3, wherein the cutter handle 1 is of a cylindrical structure, one end of the cutter handle 1 is fixedly arranged at the output end of processing equipment, the processing equipment can drive the cutter handle 1 to rotate, one end of the cutter handle 1, which is far away from the processing equipment, is provided with a clamping part 11, and the side wall of the clamping part 11 is provided with a clamping groove 12; the tool bit 2 is provided with a mounting hole 21 for the clamping part 11 to be matched and penetrated in a penetrating way along the central axis direction of the tool bit 2, one end of the tool bit 2 away from the processing equipment is provided with a limiting part 22 communicated with the mounting hole 21, and the tool bit 2 can rotate and enable the limiting part 22 to be clamped in the clamping groove 12; the blade 3 is installed on tool bit 2, and the blade 3 is provided with a plurality ofly along the circumference of tool bit 2 even interval, and when processing equipment drive handle of a knife 1 drove tool bit 2 and rotates, the blade 3 can cut the work piece. After the machining equipment drives the reverse countersink to cut the workpiece, the limiting part 22 can be separated from the clamping groove 12 only by reversely rotating the tool bit 2, so that the tool bit 2 and the tool shank 1 can be quickly disassembled and assembled, and the machining efficiency is improved.

Referring to fig. 2, the clamping portion 11 includes two symmetrical arc surfaces 111 and two planes 112 parallel to each other, two ends of any arc surface 111 are connected with ends of the same sides of the two planes 112, two clamping grooves 12 and two limiting portions 22 are respectively provided, two clamping grooves 12 are provided at intersecting positions of the arc surfaces 111 and the planes 112, the two clamping grooves 12 are respectively provided at two diagonal corners of the clamping portion 11, and the two limiting portions 22 can be respectively clamped in the two clamping grooves 12. Thereby improving the quick installation of the tool bit 2, improving the installation efficiency of the tool bit 2 and ensuring that the installed tool bit 2 is not easy to shake.

The cutter head 2 is provided with a groove hole 23, two limiting parts 22 are respectively positioned on the side wall of the groove hole 23 in the width direction, the width dimension of the groove hole 23 is smaller than the diameter of the mounting hole 21, the width dimension of the groove hole 23 is larger than or equal to the dimension between the two planes 112, and the clamping part 11 is matched and penetrated in the mounting hole 21. By limiting the width dimension of the slot-shaped hole 23, the clamping part 11 passes through the space between the two limiting parts 22 when the cutter head 2 is installed; also, when the cutter head 2 is rotated, the clamping part 11 can be clamped with the limiting part 22, so that the firmness of clamping between the cutter head 2 and the cutter handle 1 is improved.

The clamping groove 12 has a first turning surface 121 and a second turning surface 122 which are connected with each other, wherein the end parts of the first turning surface 121 and the second turning surface 122, which are far away from each other, are obliquely arranged towards the direction close to the center of the clamping part 11, and the first turning surface 121 and the second turning surface 122 are both planes 112. The first turning surface 121 and the second turning surface 122 are not on the same horizontal plane 112, and the tool bit 2 and the tool shank 1 are not easy to rotate relative to each other after being mounted.

Referring to fig. 3, a plurality of cutting grooves 24 are formed in the peripheral side wall of the tool bit 2 at intervals, the opening ends of the cutting grooves 24 penetrate through one end of the tool bit 2 close to the machining equipment, the cutting grooves 24 comprise a first groove surface 241 and a second groove surface 242 which are connected with each other, the first groove surface 241 is an arc surface, the radian of the first groove surface 241 is gradually increased towards the direction close to the machining equipment, and therefore scraps of a machined workpiece can be conveniently discharged along the radian direction of the first groove surface 241; the second groove surface 242 is a flat surface, the second groove surface 242 is provided with a mounting groove 2421, the blade 3 is mounted in the mounting groove 2421, and the side wall of the blade 3 is attached to the groove wall of the mounting groove 2421. Thereby increasing the contact area between the blade 3 and the cutter head 2, making the blade 3 not easy to slide relative to the cutter head 2, and improving the firmness of the installation of the blade 3.

The blade 3 is detachably connected with the cutter head 2, the blade 3 is mounted on the groove wall of the cutting groove 24 through fixing bolts 31, and the fixing bolts 31 are provided with two. When the blade 3 is damaged, the blade 3 can be detached, so that the replacement cost can be reduced, and meanwhile, the blades 3 with different sizes and shapes can be conveniently installed; the two fixing bolts 31 can strengthen the blade 3, and reduce the possibility of deflection of the blade 3 and the cutter head 2 in the machining process.

The implementation principle of the counter bit provided by the embodiment of the application is as follows: after the machining equipment drives the reverse countersink to cut the workpiece, the limiting part 22 can be separated from the clamping groove 12 only by reversely rotating the tool bit 2, so that the tool bit 2 and the tool shank 1 can be quickly disassembled and assembled, and the machining efficiency is improved.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. An anti-countersink is characterized in that: comprises a knife handle (1), a knife head (2) and a blade (3);

One end of the tool shank (1) is fixedly arranged on processing equipment, one end of the tool shank (1) away from the processing equipment is provided with a clamping part (11), and the clamping part (11) is provided with a clamping groove (12);

The cutter head (2) is provided with a mounting hole (21) for the clamping part (11) to penetrate through along the axis direction of the cutter head, one end of the cutter head (2) is provided with a limiting part (22) communicated with the mounting hole (21), and the cutter head (2) can rotate and enable the limiting part (22) to be clamped in the clamping groove (12);

The cutter comprises a cutter head (2), a cutter blade (3) and a machining device, wherein the cutter blade (3) is arranged on the cutter head (2), the cutter blade (3) is arranged along the circumferential direction of the cutter head (2) at intervals, and the cutter blade (3) is used for cutting a workpiece when the machining device drives the cutter handle (1) to drive the cutter head (2) to rotate.

2. The countersink according to claim 1, wherein: the clamping part (11) comprises two arc surfaces (111) which are symmetrically arranged and two planes (112) which are parallel to each other, two ends of any one arc surface (111) are respectively connected with two ends on the same side of the planes (112), two clamping grooves (12) and two limiting parts (22) are respectively arranged, the clamping grooves (12) are arranged at the intersecting positions of the arc surfaces (111) and the planes (112), the two clamping grooves (12) are respectively arranged at two diagonal angles of the clamping part (11), and the limiting parts (22) can be respectively clamped in the two clamping grooves (12).

3. The countersink according to claim 2, wherein: the clamping groove (12) is provided with a first turning surface (121) and a second turning surface (122) which are connected with each other, and the end parts of the first turning surface (121) and the second turning surface (122) which are far away from each other are obliquely arranged towards the direction which is close to the center of the clamping part (11).

4. The countersink according to claim 2, wherein: the cutter head (2) is provided with a groove hole (23), two limit parts (22) are respectively located on the side wall of the width direction of the groove hole (23), the width dimension of the groove hole (23) is smaller than the diameter of the mounting hole (21), the width dimension of the groove hole (23) is larger than or equal to the dimension between two planes (112), and the clamping part (11) is matched and penetrated in the mounting hole (21).

5. The countersink according to claim 1, wherein: the outer side wall of the tool bit (2) is provided with a plurality of cutting grooves (24), the cutting grooves (24) penetrate through one end, close to the machining equipment, of the tool bit (2), and the blade (3) is arranged on the groove wall of the cutting grooves (24).

6. The countersink according to claim 5, wherein: the blade (3) is detachably connected with the cutter head (2).

7. The countersink according to claim 6, wherein: the blade (3) is arranged on the groove wall of the cutting groove (24) through a fixing bolt (31).

8. The countersink according to claim 7, wherein: the number of the fixing bolts (31) is two.

9. The countersink according to claim 5, wherein: the cutting groove (24) comprises a first groove surface (241) and a second groove surface (242) which are connected with each other, the first groove surface (241) is an arc-shaped surface, the second groove surface (242) is a flat surface, and the blade (3) is arranged on the second groove surface (242).

10. The countersink according to claim 9, wherein: the second groove surface (242) is provided with a mounting groove (2421), the blade (3) is fixedly arranged in the mounting groove (2421), and the side wall of the blade (3) is attached to the groove wall of the mounting groove (2421).