CN215279931U

CN215279931U - Inner diameter grooving cutter

Info

Publication number: CN215279931U
Application number: CN202022989535.XU
Authority: CN
Inventors: 严红斌
Original assignee: Shanghai Richu Tools Co ltd
Current assignee: Shanghai Richu Tools Co ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-12-24
Anticipated expiration: 2030-12-11

Abstract

The application relates to an inner diameter slotting cutter, relating to the technical field of cutters; the tool bit connector is fixedly arranged at the end of the tool handle, a cutting tool bit is vertically arranged on the tool bit connector, the front angle of the cutting tool bit is alpha, and the range of alpha is 50-70. According to the cutting tool bit, the range of the front angle alpha of the cutting tool bit is set to be 50-70, the cutting tool bit can meet the requirement of machining precision of the annular groove while saving cutting labor, the situation of tool breakage is prevented, and the service life of the cutting tool bit is prolonged to the greatest extent.

Description

Inner diameter grooving cutter

Technical Field

The application relates to the technical field of cutters, in particular to an inner diameter slotting cutter.

Background

The grooving cutter is a cutter for machining an inner hole groove, and in use, the grooving cutter needs to be fixed and moves a workpiece to be machined, so that the grooving cutter is located on the inner wall of the workpiece to be machined, then the workpiece to be machined is rotated, and a ring groove is cut on the inner wall of the workpiece to be machined.

In the related art, a ring groove needs to be machined on the inner wall of the air compressor shell, however, when a common groove cutter is used for machining the ring groove on the inner wall of the air compressor shell, if the front angle of the groove cutter is too large, the service life of the cutter is short; if the front angle of the grooving cutter is too small, the machining precision of the grooving cutter is poor, and a part to be improved exists.

SUMMERY OF THE UTILITY MODEL

In order to improve the machining precision of annular, improve the life of grooving cutter as far as possible simultaneously, this application provides an internal diameter grooving cutter.

The application provides an internal diameter slotting cutter adopts following technical scheme:

the inner diameter grooving cutter comprises a cutter handle and a cutter head connecting body fixedly arranged at the end part of the cutter handle, wherein a cutting cutter head is vertically arranged on the cutter head connecting body, the front angle of the cutting cutter head is alpha, and the alpha ranges from 50 degrees to 70 degrees.

By adopting the technical scheme, the range of the front angle alpha of the cutting tool bit is set between 50 degrees and 70 degrees, the cutting is labor-saving in the range, the machining precision of the ring groove can be met, the occurrence of the tool breakage situation can be favorably prevented, and the service life of the cutting tool bit is prolonged to the greatest extent.

Preferably, the cutting tool bit is the back taper setting and is formed with big head end and little head end, just the little head end of cutting tool bit is connected with the tool bit connector, the cutting edge of cutting tool bit is located the big head end of cutting tool bit.

Through adopting above-mentioned technical scheme, be connected the tip end of cutting tool bit with the tool bit connector, the cutting edge setting of cutting tool bit is in the tip end of cutting tool bit, on the one hand, has saved the materials of cutting tool bit, helps save material, and on the other hand helps improving the structural strength of cutting tool bit self.

Preferably, the taper of the cutting insert is 1030'.

By adopting the technical scheme, the taper of the cutting tool bit is set to 1030', and the cutting tool bit under the cone body particularly realizes the purposes of saving materials and enhancing the structural strength of the cutting tool bit.

Preferably, the end part of the knife handle is provided with an embedding groove, and one end of the knife head connector, which is far away from the cutting knife, is embedded into the embedding groove and fixed on the knife handle through welding.

Through adopting above-mentioned technical scheme, adopt embedded welded fastening to the tool bit connector on the handle of a knife, this kind of welding mode for it is more firm firmly between tool bit connector and the handle of a knife.

Preferably, an avoiding surface is arranged on one side of the radial direction of the cutter handle, and the avoiding surface and the cutting bit are positioned on the same side.

By adopting the technical scheme, when the cutting tool bit cuts a certain depth, the avoidance depth formed by the avoidance surface is utilized, the interference phenomenon between the tool shank and the inner wall of the shell is avoided, in addition, the length of the cutting tool bit can be reduced, and the cost of the cutting tool bit is saved.

Preferably, the tool shank is provided with a tool bit connector, and one end of the tool bit connector, which is located at the cutting tool bit, is provided with a material removal slope surface.

Through adopting above-mentioned technical scheme, utilize to remove the material domatic, be convenient for detach the waste material that the cutting produced from the cutting tool bit to prevent that the cutting waste material from influencing normal cutting operation.

Preferably, the tool shank is provided with a clamping surface.

By adopting the technical scheme, the clamping surface arranged on the knife handle is utilized, so that the knife handle is convenient to clamp and fix.

Preferably, a transition fillet is arranged on the cutting tool bit, the size of the transition fillet is R, and the size of R is 0.2 mm.

Through adopting above-mentioned technical scheme, utilize the transition fillet that sets up on the cutting tool bit, avoid cutting tool bit effectively when just contacting the inner wall of shell, the condition that the tool bit transition weares and teares appears takes place.

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

the range of the front angle alpha of the cutting tool bit is set to be 50-70 degrees, the cutting labor is saved, the machining precision of the ring groove can be met, the tool bit is prevented from being broken, and the service life of the cutting tool bit is prolonged to the maximum extent;

through being the back taper setting with the cutting tool bit to and utilize the transition fillet that sets up on the cutting tool bit, help improving the structural strength of cutting tool bit self.

Drawings

FIG. 1 is an exploded view of an embodiment of the present application, which mainly shows the overall structure of an inner diameter grooving cutter;

fig. 2 is a schematic view of an inner diameter grooving cutter according to an embodiment of the present disclosure, mainly showing a rake angle structure;

FIG. 3 is a schematic view of a cutting bit connector and cutting bit structure embodying aspects of the present disclosure;

fig. 4 is a schematic view mainly showing the overall structure of the slotting cutter in the embodiment of the present application.

Reference numerals: 1. a knife handle; 11. embedding a groove; 2. a tool bit connector; 3. a cutting bit; 4. a material removal slope; 5. a big head end; 6. a small end; 7. transition fillets; 8. an avoidance surface; 81. avoiding depth; 9. a clamping surface.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses an inner diameter slotting cutter.

Referring to fig. 1, the internal diameter grooving cutter includes handle of a knife 1 and tool bit connector 2 that are rectangular form, and the tip of handle of a knife 1 has been seted up and has been inlayed and establish groove 11, and the one end embedding of tool bit connector 2 is inlayed and is established in groove 11 and through welded fastening on handle of a knife 1, adopts embedded welding to fix tool bit connector 2 on handle of a knife 1 promptly, improves handle of a knife 1 and the joint strength between the tool bit connector 2. The other end of tool bit connector 2 is fixed with cutting tool bit 3 perpendicularly, and tool bit connector 2 is located tool bit connector 2 and cutting tool bit 3's junction and is provided with and goes the domatic 4 of material for in time discharge cutting waste material along going material domatic 4.

Referring to fig. 2, the rake angle of the cutting insert 3 is α, which ranges from 50 ° to 70 °, and the rake angle α of the present embodiment is set to 60 °. The cutting is laborsaving, still can satisfy the machining precision to the annular, and helps preventing the condition of collapsing the sword and takes place, has improved the life of cutting tool bit 3 to the at utmost.

Referring to fig. 3, the cutting tip 3 is arranged in an inverted cone shape and is provided with a large tip 5 and a small tip 6, the taper of the cutting tip 3 is 1030', the small tip 6 of the cutting tip 3 is fixedly connected with the tip connector 2, and the cutting edge of the cutting tip 3 is located at the large tip 5 of the cutting tip 3, so that the material consumption is reduced, and the structural strength of the cutting tip 3 is enhanced; and the edge of the cutting tool bit 3 is provided with a transition fillet 7, the size of the transition fillet 7 is R, and the size of R is 0.2mm, so as to prevent the edge of the cutting tool bit 3 from being worn in the cutting process.

Referring to fig. 4, a relief surface 8 is provided on one side of the shank 1 in the radial direction, a relief depth 81 is formed between the relief surface 8 and the farthest position in the radial direction of the shank 1, and the relief surface 8 and the cutting tip 3 are located on the same side. When the cutting tool bit 3 cuts a certain depth, the avoidance depth 81 formed by the avoidance surface 8 is utilized to avoid the interference phenomenon between the tool holder 1 and the inner wall of the shell, in addition, the length of the cutting tool bit 3 can be reduced, and the cost of the cutting tool bit 3 is saved.

Referring to fig. 4, a radial side of the shank 1 is provided with a clamping surface 9, and the clamping surface 9 is perpendicular to the relief surface 8, so that the shank 1 is firmly clamped.

The implementation principle of an inner diameter slotting cutter in the embodiment of the application is as follows:

in practical use, the front angle alpha of the cutting tool bit 3 is set to be 60 degrees, the machining precision of the ring groove can be met while the cutting is labor-saving, and the service life of the cutting tool bit 3 is prolonged by forming the cutting tool bit 3 into an inverted cone and arranging the transition fillet 7.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An internal diameter slotting cutter which is characterized in that: the tool comprises a tool handle (1) and a tool bit connector (2) fixedly arranged at the end of the tool handle (1), wherein a cutting tool bit (3) is vertically arranged on the tool bit connector (2), the front angle of the cutting tool bit (3) is alpha, and the alpha ranges from 50 degrees to 70 degrees.

2. An inner diameter grooving cutter as claimed in claim 1 wherein: the cutting tool bit (3) is the back taper setting and is formed with big head end (5) and little head end (6), just little head end (6) of cutting tool bit (3) are connected with tool bit connector (2), the cutting edge of cutting tool bit (3) is located big head end (5) of cutting tool bit (3).

3. An inner diameter grooving cutter as claimed in claim 2 wherein: the taper of the cutting insert (3) is 1030'.

4. An inner diameter grooving cutter as claimed in claim 1 wherein: the end part of the knife handle (1) is provided with an embedding groove (11), and one end of the knife head connector (2) far away from the cutting knife is embedded in the embedding groove (11) and fixed on the knife handle (1) through welding.

5. An inner diameter grooving cutter as claimed in claim 1 wherein: the cutter handle is characterized in that an avoiding surface (8) is arranged on one radial side of the cutter handle (1), an avoiding depth (81) is formed between the avoiding surface (8) and the farthest radial position of the cutter handle (1), and the avoiding surface (8) and the cutting tool bit (3) are located on the same side.

6. An inner diameter grooving cutter as claimed in claim 1 wherein: the material removing slope (4) is arranged at one end, located on the cutting tool bit (3), of the tool bit connector (2) arranged on the tool shank (1).

7. An inner diameter grooving cutter as claimed in claim 1 wherein: the knife handle (1) is provided with a clamping surface (9).

8. An inner diameter grooving cutter as claimed in claim 1 wherein: the cutting tool bit (3) is provided with a transition fillet (7), the size of the transition fillet (7) is R, and the size of R is 0.2 mm.