CN216632748U

CN216632748U - Spline inner hole gear shaping cutter

Info

Publication number: CN216632748U
Application number: CN202123261903.XU
Authority: CN
Inventors: 黄晶晶
Original assignee: Chengdu Bangpu Cutting Tools Co ltd
Current assignee: Chengdu Bangpu Cutting Tools Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-05-31
Anticipated expiration: 2031-12-23

Abstract

The utility model provides a spline inner hole slotting cutter which comprises a cutter bar, wherein a cutter head is arranged at the top of the cutter bar, the cutter head and the cutter bar are integrally formed, a clamping groove for mounting a blade is formed in the cutter head, a supporting block for supporting the blade is arranged below the clamping groove, the supporting block protrudes out of the side wall of the cutter head, and the cross section of the supporting block is matched with the blade in shape; the supporting block is provided with a blade screw hole for connecting a blade at the top close to the clamping groove, and the blade comprises a spline groove for being in adaptive connection with the screw hole through a screw; through the blade that sets up a two-way cutting edge, realize the two-way alternate use of a blade, set up the sunken cutting edge in root simultaneously, can satisfy different processing requirements, promote the precision of processing, with low costs, the practicality is high, has higher spreading value.

Description

Spline inner hole gear shaping cutter

Technical Field

The utility model relates to the technical field of machining, in particular to a spline inner hole slotting cutter.

Background

The gear shaper cutter is a gear-shaped or rack-shaped gear machining cutter. The pinion cutter is used for processing internally and externally meshed straight teeth and helical gears according to a generating method; the gear shaper cutter is characterized in that a gear with a shoulder, a multiple gear, a herringbone gear without a cutter slot and the like can be processed; the special-shaped gear shaper cutter can also process workpieces with various other profiles, such as cams, internal splines and the like; the gear shaper cutter is divided into 4 types of disc shape, bowl shape, cylinder shape and taper shank according to the appearance; the disk-shaped pinion cutter is mainly used for processing straight teeth, helical teeth and herringbone gears which are meshed internally and externally; the bowl-shaped pinion cutter is mainly used for processing a spur gear with a shoulder and multiple inner and outer meshing parts, and is different from a disc-shaped pinion cutter in that a nut for clamping can be accommodated in a cutter body of the pinion cutter during working, so that the processing is not hindered; the cylindrical gear shaper cutter is used for processing an internal gear and an external gear with a small modulus and is screwed on a main shaft of the gear shaper by the thread of an inner hole; the taper shank gear shaping cutter is mainly used for processing internally engaged straight teeth and helical gears.

In the prior art, the structure of the slotting cutter is single, the shape and the shape of the cutting edge are uniform, the types of machining are few, and all machining cannot be met, so that a new slotting cutter is urgently needed to meet different machining requirements.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the technology, the spline inner hole slotting cutter provided by the utility model has the advantages that the bidirectional alternate use of one blade is realized by arranging the blade with the bidirectional cutting edge, meanwhile, the cutting edge with the concave root is arranged, different processing requirements can be met, the processing precision is improved, the cost is low, the practicability is high, and the popularization value is higher.

In order to achieve the purpose, the utility model provides a spline inner hole slotting cutter which comprises a cutter bar, wherein a cutter head is arranged at the top of the cutter bar, the cutter head and the cutter bar are integrally formed, a clamping groove for installing a cutter blade is formed in the cutter head, a supporting block for supporting the cutter blade is arranged below the clamping groove, the supporting block protrudes out of the side wall of the cutter head, and the cross section of the supporting block is matched with the shape of the cutter blade; the supporting block is close to the top of clamping groove and is equipped with the blade screw hole that is used for connecting the blade, the blade including be used for with the screw hole passes through the spline groove of screw adaptation connection.

As a specific scheme: the cross section of blade is the rhombus cross section, the spline groove is located be located the rhombus intermediate position on the blade, the both sides of spline groove outwards extend respectively have the cutting edge.

As a preferable scheme: the blades are symmetrically arranged along the diagonal of the rhombic cross section.

As a preferable scheme: the cutting edge is including being close to the root of spline groove one end and keeping away from the cutting part of spline groove one end, root undercut, the ascending while of cutting part is towards keeping away from the outside formation blade that extends of spline groove direction.

As a preferable scheme: the front end of the cutting edge far away from the spline groove is a linear cutting edge, and two cutting edges of the linear cutting edge are arc-shaped cutting edges.

As a preferable scheme: the angle of the upward extension of the cutting edge and the root part form an included angle of 20 degrees, and the angle of the outward extension of the cutting edge and the vertical plane form an angle of 7 degrees; the root and the plane where the spline grooves are located form an angle of 110 degrees.

As a preferable scheme: two adjacent sides of the linear cutting edge form an included angle of 55 degrees.

As a specific scheme: the clamping groove extends towards the axis position of the cutter bar and is provided with a strip-shaped groove used for rapidly taking the cutter blade.

As a specific scheme: the cutter bar is integrally machined and formed by high-speed steel.

As a specific scheme: the blade is integrally processed and formed by hard alloy.

The utility model has the beneficial effects that: compared with the prior art, the spline inner hole slotting cutter provided by the utility model comprises a cutter bar, wherein a cutter head is arranged at the top of the cutter bar, the cutter head and the cutter bar are integrally formed, a clamping groove for mounting a cutter blade is formed in the cutter head, a supporting block for supporting the cutter blade is arranged below the clamping groove, the supporting block protrudes out of the side wall of the cutter head, and the cross section shape of the supporting block is matched with that of the cutter blade; the top of the supporting block, which is close to the clamping groove, is provided with a blade screw hole for connecting a blade, and the blade comprises a spline groove which is in adaptive connection with the screw hole through a screw; through the blade that sets up a two-way cutting edge, realize the two-way alternate use of a blade, set up the sunken cutting edge in root simultaneously, can satisfy different processing requirements, promote the precision of processing, with low costs, the practicality is high, has higher spreading value.

Drawings

FIG. 1 is a left side view of the tool holder of the present invention;

FIG. 2 is a front view of the tool holder of the present invention;

FIG. 3 is a top view of the tool holder of the present invention;

FIG. 4 is a front view of a blade of the present invention;

fig. 5 is a top view of the blade of the present invention.

The main element symbols are as follows:

1. a cutter bar; 2. a cutter head; 3. a support block; 31. screw holes; 4. clamping grooves; 41. a strip-shaped groove; 5. a blade; 51. a spline groove; 52. a root portion; 53. a blade part; 54. and (5) linear cutting edges.

Detailed Description

In order to more clearly express the present invention, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or including indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as exemplary is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the utility model. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes are not shown in detail to avoid obscuring the description of the utility model with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles disclosed herein.

The pinion cutter is a gear-shaped or rack-shaped gear machining cutter. The pinion cutter is used for processing internally and externally meshed straight teeth and helical gears according to a generating method; the gear shaper cutter is characterized in that a gear with a shoulder, a multiple gear, a herringbone gear without a cutter slot and the like can be processed; the special-shaped gear shaper cutter can also process workpieces with various other profiles, such as cams, internal splines and the like; the gear shaper cutter is divided into 4 types of disc shape, bowl shape, cylinder shape and taper shank according to the appearance; the disk-shaped pinion cutter is mainly used for processing straight teeth, helical teeth and herringbone gears which are meshed internally and externally; the bowl-shaped pinion cutter is mainly used for processing a spur gear with a shoulder and multiple inner and outer meshing parts, and is different from a disc-shaped pinion cutter in that a nut for clamping can be accommodated in a cutter body of the pinion cutter during working, so that the processing is not hindered; the cylindrical gear shaper cutter is used for processing an internal gear and an external gear with a small modulus and is screwed on a main shaft of the gear shaper by the thread of an inner hole; the taper shank gear shaping cutter is mainly used for processing internally engaged straight teeth and helical gears.

In the prior art, the structure of a slotting cutter is single, the shape and the shape of a cutting edge are uniform, the types of machining are few, and all machining cannot be met, so that a new slotting cutter is urgently needed to meet different machining requirements.

In order to solve some technical problems and deficiencies in the prior art, the utility model provides a spline inner hole slotting cutter aiming at the technical problems and deficiencies, please refer to fig. 1-5, comprising a cutter bar 1, a cutter head 2 is arranged at the top of the cutter bar 1, the cutter head 2 and the cutter bar 1 are integrally formed, the cutter head 2 is provided with a clamping groove 4 for mounting a blade 5, a supporting block 3 for supporting the blade 5 is arranged below the clamping groove 4, the supporting block 3 protrudes out of the side wall of the cutter head 2, and the cross section shape of the supporting block 3 is matched with the shape of the blade 5; the top of the supporting block 3 close to the clamping groove 4 is provided with a blade 5 screw hole 31 for connecting a blade 5, and the blade 5 comprises a spline groove 51 which is used for being in fit connection with the screw hole 31 through a screw;

cutter arbor

1 and 2 formula as an organic whole shaping of tool bit, the processing end as processing behind the tool bit 2 mainly used installation blade 5, clamping groove 4 is used for clamping blade 5, blade 5 passes through the screw spline 51 and screws after screw hole 31 and fixes in supporting shoe 3 top, supporting shoe 3 is the strip structure by tool bit 2 to the extension of cutter arbor 1 bottom, and set up the cross sectional shape with 5 shape looks adaptations of blade, mainly be in order to play the best supporting role to blade 5, avoid slippage or disconnected sword.

In one particular embodiment of the utility model, mention is made of: the cross section of blade 5 is the rhombus cross section, and spline groove 51 is located rhombus intermediate position on locating blade 5, and spline groove 51's both sides are outwards extended respectively has the cutting edge, and the rhombus cross section includes two opposite angles of large angle and two opposite angles of small angle, and the two opposite angles of small angle set up to the cutting edge position, and spline groove 51 sets up and is used for fixed connection blade 5 between two cutting edges.

In a preferred embodiment of the utility model are mentioned: the cutting edges are symmetrically arranged along the diagonal line of the rhombic cross section; the two symmetrically arranged cutting edges have the same structure, so that the blade 5 is a double-end usable structure, when the cutting edge on one side is broken or worn, the blade 5 does not need to be directly replaced, the blade 5 can be reused only by turning, and the processing cost and the material cost can be effectively reduced.

In a preferred embodiment of the utility model are mentioned: the cutting edge comprises a root part 52 close to one end of the spline groove 51 and a blade part 53 far away from one end of the spline groove 51, the root part 52 is sunken downwards, and the blade part 53 extends outwards to form a cutting edge towards the direction far away from the spline groove 51 while upwards; undercut's root 52 can be effectual plays the effect of a support to the cutting edge, scatters the effectual transmission of atress of cutting edge to root 52 position again to extend the life of cutting edge, undercut's root 52 can effectually avoid simultaneously that the cutting bits when the cutting are piled up and cause the influence to the cutting edge processing.

In a preferred embodiment of the utility model are mentioned: the front end that spline groove 51 was kept away from to the blade is sharp blade 54, and the two edges angle of sharp blade 54 are the arc edges angle, and sharp blade 54 can effectual assurance machining precision and machining efficiency, can satisfy the processing of the processing work piece that conventional blade 5 can not satisfy simultaneously.

In a preferred embodiment of the utility model are mentioned: the angle of upward extension of the cutting edge forms an included angle of 20 degrees with the root 52, and the angle of outward extension of the cutting edge forms an angle of 7 degrees with the vertical plane; the root 52 is at an angle of 110 deg. to the plane of the spline groove 51.

In a preferred embodiment of the utility model are mentioned: the adjacent two sides of the linear cutting edge 54 form an included angle of 55 degrees.

In a preferred embodiment of the utility model are mentioned: the clamping groove 4 extends towards the axis position of the cutter bar 1 and is provided with a strip-shaped groove 41 for quickly taking the cutter blade 5; the strip-shaped groove 41 can facilitate installation and replacement of the blade 5, and when the blade 5 is taken out and replaced, the blade 5 can be taken down only by slowly tilting the blade 5 along the direction of the strip-shaped groove 41 and taking out the blade; when the blade 5 is installed, the blade edge on one side of the blade 5 is firstly put into the strip-shaped groove 41, then the blade edge on the other side is slowly put down, and the blade 5 is fixedly screwed and connected through the screw.

In one particular embodiment of the utility model, mention is made of: the cutter bar 1 is integrally processed and formed by high-speed steel.

In one particular embodiment of the utility model, mention is made of: the blade 5 is integrally machined and formed by hard alloy.

The utility model has the advantages that:

1. through the blade that sets up a two-way cutting edge, realize the two-way alternate use of a blade, set up the sunken cutting edge in root simultaneously, can satisfy different processing requirements, promote the precision of processing, with low costs, the practicality is high, has higher spreading value.

The above disclosure is only for a few specific embodiments of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.

Claims

1. A spline inner hole pinion cutter is characterized by comprising a cutter bar, wherein a cutter head is arranged at the top of the cutter bar, the cutter head and the cutter bar are integrally formed, a clamping groove for mounting a blade is formed in the cutter head, a supporting block for supporting the blade is arranged below the clamping groove, the supporting block protrudes out of the side wall of the cutter head, and the cross section of the supporting block is matched with the blade in shape; the supporting block is close to the top of clamping groove and is equipped with the blade screw hole that is used for connecting the blade, the blade including be used for with the screw hole passes through the spline groove of screw adaptation connection.

2. The splined inner bore slotting cutter according to claim 1, wherein the cross section of the blade is a diamond-shaped cross section, the spline groove is formed in the middle of the diamond-shaped cross section of the blade, and cutting edges extend outwards from two sides of the spline groove respectively.

3. The splined female shaper cutter according to claim 2, wherein the cutting edges are symmetrically disposed along a diagonal of the diamond cross-section.

4. The splined inner bore slotting cutter according to claim 2, wherein the cutting edge comprises a root portion close to one end of the splined groove and a blade portion far away from one end of the splined groove, the root portion is recessed downwards, and the blade portion extends outwards in a direction far away from the splined groove to form a cutting edge.

5. The splined inner hole slotting cutter according to claim 4, wherein the front end of the cutting edge, which is far away from the spline groove, is a linear cutting edge, and two edge angles of the linear cutting edge are arc-shaped edge angles.

6. The spline inner hole slotting cutter according to claim 4, wherein the angle of the upward extension of the cutting edge forms an angle of 20 degrees with the root, and the angle of the outward extension of the cutting edge forms an angle of 7 degrees with a vertical plane; the root and the plane where the spline grooves are located form an angle of 110 degrees.

7. The splined inner hole slotting cutter as defined in claim 5, wherein adjacent two sides of the linear cutting edge form an included angle of 55 °.

8. The spline inner hole slotting cutter according to claim 1, wherein the clamping groove extends towards the axis of the cutter bar to form a strip-shaped groove for rapidly taking the cutter blade.

9. The spline inner hole slotting cutter according to claim 1, wherein the cutter bar is integrally formed by high-speed steel.

10. The splined inner bore slotting cutter according to claim 1, wherein the cutter blade is integrally formed of hard alloy.