CN220805597U - Buffer reaming cutter body with roller - Google Patents

Abstract

The utility model discloses a buffer reaming cutter body with a roller, which comprises a cutter body, a guide body, a leading end cover and a drill rod connecting section, wherein the guide body is arranged on the cutter body; the outer circumference of the cutter body is provided with a solid cylinder with a cutting fluid guide groove, the outer circumference surface of the cutter body is axially milled with a plurality of guide key grooves, buffer key grooves and a cutter groove provided with an organic cutter clamping box, the guide key grooves are embedded with guide steel keys, and the cutter clamping box is provided with a cutter blade; the outer circumference of the guide body is provided with a solid cylinder with chip grooves, the circumferential surface of the guide body is provided with a plurality of roller grooves along the axial direction, and the roller grooves of the guide body are embedded with drum-shaped rollers and buffer rollers. The buffering reaming cutter body with the roller has the advantages of simple structure and convenient use, standard modularization is carried out on assembling and disassembling parts, the surface roughness of an inner hole is greatly improved, the cost of purchasing cutters and raw materials is reduced from that of storing, and the buffering reaming cutter body with the roller has important practical value.

Description

Buffer reaming cutter body with roller

Technical Field

The utility model belongs to the technical field of mechanical cutters, relates to a boring cutter body, and particularly relates to a buffer reaming cutter body with rollers.

Background

The deep hole boring machine is mainly used for processing deep holes or ultra-deep hole parts. The boring cutter body is manufactured for meeting the requirement of uneven machining holes in the inner holes of the forged and rolled pipes, a clamp type non-indexable cutter is installed on the boring cutter body, guide steel keys are circumferentially distributed near the cutter body of the cutter and welded for a certain length, and then the boring cutter body is machined into a sliding fixed guide body with chip grooves coaxial with the cutter body for boring, and the guide body is in clearance fit with the original holes of the workpiece; however, because the inner hole of the forged and rolled pipe is uneven and the boring bar is thin and long, vibration is generated by cutting during boring; when the guide body is machined, the original hole size is measured through the diameter-passing mandrel, and then the guide body with the size capable of passing through the mandrel is machined, so that boring can be performed; the abrasion of the sliding guide body and the repeated positioning precision of the mechanically-clamped non-indexable cutter are low, so that the bore hole diameter deviation is overlarge, the wall thickness is out of tolerance, and even the cutter is scrapped.

At present, in the prior art, a boring cutter body is a fixed machine clamp type non-indexable cutter or a welding cutter, a guide body is in clearance fit with an original hole of a workpiece, a machine clamp type single-edge cutter or a welding cutter is in interference fit with the cutter body, the hole diameter of a machined product is different, a cutter holder is replaced, time and labor are wasted due to the error of blade machining, the guide body is worn after a certain number of parts are machined, the situation that multiple edges, out-of-tolerance wall thickness, hole ellipses and the like appear on the inner surface of the subsequently machined part can be caused after the guide body is worn, the cost of the machined part is increased, the cost of the cutter is increased, the inventory of the cutter body is increased, and great waste is caused.

Disclosure of Invention

In view of the above, the utility model aims to provide a buffer reaming cutter body with a roller, which solves the defects of multiple inner hole surface roughness, aperture precision and purchasing cost of the inner diameter of a part after the inner hole of a forged and rolled pipe is machined and the inner hole of the forged and rolled pipe is about 2mm or is bored, and simultaneously meets the boring device for deep holes or ultra-deep holes of the cutter body with the same size and different sizes of bottom holes.

In order to achieve the above purpose, the following technical scheme is adopted:

The cutter body comprises a cutter body, a guide body integrally formed at one end of the cutter body, a front guide end cover and a drill rod connecting section at the other end of the cutter body;

The cutter body is provided with a solid cylinder with a cutting fluid guide groove on the outer circumference, a plurality of guide key grooves, buffer key grooves and a cutter groove for installing an organic cutter clamping box are uniformly milled on the outer circumference surface of the cutter body along the axial direction, a guide steel key is embedded in the guide key grooves, a buffer key is embedded in the buffer key grooves, the cutter groove is arranged at one end, close to the guide body, of the cutting fluid guide groove, and meanwhile, a cutter blade is installed on the cutter clamping box;

The guide body is a solid cylinder with chip grooves on the outer circumference, a plurality of roller grooves are uniformly formed in the circumferential surface of the guide body along the axial direction, and drum-shaped rollers and buffer rollers are embedded in the roller grooves of the guide body;

the outer circumference of the front guide end cover is provided with chip removal grooves and guide body roller grooves which are in one-to-one correspondence with each other and are provided with a plurality of bosses;

The cutter body and the guide body are coaxial.

As a further improvement of the utility model, a transition buffer groove is processed between the cutter body and the guide body, so that the guide body and the cutter body are arranged in a stepped manner, meanwhile, the diameter of the cutter body is larger than that of the guide body, and the length of the cutter body is longer than that of the guide body.

As a further improvement of the utility model, the guide steel key and the buffer key are distributed relatively along the axial direction.

As a further improvement of the present utility model, the positions of the cutting fluid guide grooves and the chip grooves correspond to each other in the axial direction, and the blades are parallel to each other in the axial direction.

As a further improvement of the utility model, the guide steel key and the buffer key are respectively fixed in the guide key groove and the buffer key groove through steel key firm screws, meanwhile, the guide key groove is arranged at one end of the cutter body connected with the guide body, and the buffer key groove is uniformly arranged at one end of the guide body far away from the cutter body.

As a further development of the utility model, the clamping pockets are each fastened to the tool slot by means of a holder fastening screw, while the inserts are each fastened to the clamping pockets by means of an insert fastening screw.

As a further improvement of the utility model, the insert is an indexable machine clamp insert.

As a further improvement of the utility model, the drill rod connecting section is provided with threads.

The beneficial effects of the utility model are as follows: the buffering reaming cutter body with the roller has the advantages of simple structure and convenient use, standard modularization is carried out on assembling and disassembling parts, the surface roughness of an inner hole is greatly improved, the cost of purchasing cutters and raw materials is reduced from that of storing, and the buffering reaming cutter body with the roller has important practical value.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.

Please refer to fig. 1:

the cutter body with the roller buffer reaming comprises a cutter body 1, a guide body 2 and an end cover 3 which are integrally formed at one end of the cutter body 1, and a drill rod connecting section 4 at the other end of the cutter body 1, wherein threads are formed on the drill rod connecting section 4;

The cutter body 1 is provided with a solid cylinder with a cutting fluid guide groove 11 on the outer circumference, a plurality of guide key grooves 12, buffer key grooves 17 and a cutter groove 13 provided with an organic cutter clamping box 14 are milled on the outer circumference surface of the cutter body 1 along the axial direction, a guide steel key 15 is embedded in the guide key grooves 12, the cutter groove 13 is arranged at one end of the cutting fluid guide groove 11 close to the guide body 2, meanwhile, a cutter blade 16 is arranged on the cutter clamping box 14, and the cutter blade 16 is an indexable cutter clamping blade;

The guide body 2 is provided with a solid cylinder with a chip groove 21 on the outer circumference, the circumferential surface of the guide body 2 is uniformly provided with a plurality of roller grooves 22 along the axial direction, the roller grooves 22 are embedded with rollers 23 and buffer rollers 24, the roller grooves 22 are arranged at one end of the chip groove 21 far away from the cutter body 1, and meanwhile, the rollers 23 and the buffer rollers 24 are arranged in the roller grooves 22;

The outer circumference of the front guide end cover 3 is provided with chip grooves and guide body roller grooves which are in one-to-one correspondence with each other and provided with a plurality of bosses;

The cutter body 1, the guide body 2 and the front guide end cover 3 are coaxial, a transition buffer groove 102 is processed between the cutter body 1, the guide body and the front guide end cover 3, the guide body 2 and the cutter body 1 are arranged in a stepped mode, meanwhile, the diameter of the cutter body 1 is larger than that of the guide body 2, and the length of the cutter body 1 is larger than that of the guide body 2.

The guide steel key 15 and the buffer key 18 are distributed around the cutter body 1 along the axial direction, the cutting fluid guide groove 11 corresponds to the chip groove 21 along the axial direction, and the blade 16 also corresponds to the axial direction.

The guide steel key 15 and the buffer key 18 are respectively fixed in the guide key groove 12 and the second guide key groove 17 through steel key firm screws a and b, meanwhile, the guide key groove 12 and the first buffer groove 17 are arranged at one end of the cutter body 1 connected with the guide body 2, the machine clamp cutter box 14 is respectively fixed on the cutter groove 13 through the cutter clamp fastening screw b, and the cutter blade 16 is respectively fixed on the machine clamp cutter box 14 through the cutter blade firm screw c.

The working process comprises the following steps:

(1) The guide steel keys 15 and the buffer keys 18 are respectively arranged on the cutter body 1, the cutter blade 16 is arranged in the cutter clamping box 14 of the machine, then the cutter clamping box 14 is arranged in the cutter body 1, and the distance between the cutter blade on the first cutter clamping box 14 and the corresponding guide steel key 15 is measured to determine whether the required size can be achieved;

(2) Tightly connecting the threads of the whole double-boring cutter body with the threads of the boring bar, and enabling the blade 16 to be perpendicular to the guide rail of the boring machine;

(3) The boring bar is locked, so that the boring bar cannot rotate (namely, the boring cutter body 1 is kept still), the existing state is maintained, and the preparation before processing is completed.

The boring depth of the device exceeds 4m, and the bore hole diameter phi is 76.2mm of the deep hole or ultra-deep hole type part.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. The buffering reaming cutter body with the roller is characterized by comprising a cutter body, a guide body integrally formed at one end of the cutter body and a drill rod connecting section at the other end of the cutter body;

The cutter body is provided with a solid cylinder with a cutting fluid guide groove on the outer circumference, a plurality of guide key grooves, buffer key grooves and cutter grooves for installing an organic clamping cutter box are uniformly milled on the outer circumferential surface of the cutter body along the axial direction, a guide steel key is embedded in the guide key grooves, a buffer key is embedded in the buffer key grooves, the cutter grooves are arranged at one end, close to the guide body, of the cutting fluid guide groove, and meanwhile, a cutter blade is installed on the organic clamping cutter box;

The guide body is a solid cylinder with chip grooves on the outer circumference, a plurality of roller grooves are uniformly formed in the circumferential surface of the guide body along the axial direction, and drum-shaped rollers and buffer rollers are embedded in the roller grooves of the guide body;

The cutter body and the guide body are coaxial.

2. The cushioned reamer body with rollers of claim 1, wherein a transition cushion slot is formed between the reamer body and the guide body such that the guide body and the reamer body are arranged in a stepped manner, and wherein the diameter of the reamer body is greater than the diameter of the guide body and the length of the reamer body is greater than the length of the guide body.

3. The cushioned reamer body of claim 1, wherein the guide steel key and the cushion key are relatively distributed along an axial direction.

4. The cushioned reamer body of claim 1, wherein the cutting fluid guide grooves correspond to the chip grooves in position along the axial direction, and the blades correspond to each other along the axial direction.

5. The cushioned reamer body with the roller according to claim 1, wherein the guide steel key and the cushion key are respectively fixed in the guide key groove and the first cushion groove by steel key firm screws, and simultaneously, the guide key groove is formed at one end of the reamer body connected with the guide body, and the cushion key groove is formed at one end of the guide key groove far away from the reamer body.

6. The cushioned reamer body of claim 1, wherein the cartridge is secured to the cutter pocket by respective holder fastening screws and the blades are secured to the cartridge by respective blade securing screws.

7. The cushioned reamer body of any one of claims 1, 4 or 6, wherein said blades are indexable mechanically clamped blades.

8. The roller cushioned reamer body of claim 1, wherein the drill pipe connection section is threaded.