CN215034145U

CN215034145U - Novel reamer

Info

Publication number: CN215034145U
Application number: CN202121192687.5U
Authority: CN
Inventors: 王嘉; 崔建华; 胡春萍; 刘晶; 刘文娟; 戚海波; 李振晓
Original assignee: Hebei Huabei Diesel Engine Co Ltd
Current assignee: Hebei Huabei Diesel Engine Co Ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-12-07
Anticipated expiration: 2031-05-31

Abstract

The utility model relates to a novel reamer, include the handle of a knife of using with the cooperation of lathe main shaft and set up in the tail flat of the tool changing manipulator centre gripping of its one end terminal surface, still including setting up in the reamer body of the handle of a knife other end, reamer body is including setting up a cutting edge and two guide blocks on the reamer body side, one side of the tip of reamer body, cutting edge is equipped with the chip groove, this internal central apopore that still is equipped with of reamer, the delivery port of central apopore sets up in the chip groove. The utility model discloses avoided traditional reamer to appear the emergence of incline phenomenon along the bottom outlet in the reaming process course of working, the size precision in the hole that the hinge came out is better with roughness value, can merge into one process with the thick of reaming processing, the twice preface of finish reaming.

Description

Novel reamer

Technical Field

The utility model relates to a novel reamer belongs to parts machining technical field.

Background

When a reamer for a common machine is used for reaming, a twist drill is generally used firstly to machine a bottom hole, and then the reamer is used for carrying out two machining procedures of rough reaming and finish reaming of the hole. If the bottom hole is inclined, the reamer is also inclined along the direction of the bottom hole, and the processing quality of the part is affected. Generally used reamers are all multi-edge reamers, the multi-edge cutting efficiency is high, but in the super-finishing process, because the cutting edges are more, multiple cutting forces are generated, the processing vibration is inevitably influenced, and the instability of the multi-edge cutting is more prominent.

In addition, the machining resistance of multi-edge cutting is large, and the resistance can push the reamer to deviate from the machining route of the reamer, so that the reamed hole is deflected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel reamer is less to what follow the stick for bottom outlet axis quality, can offset the processing resistance, restores the incline of bottom outlet to a certain extent to the size precision and the roughness value in the hole that the hinge came out are better.

In order to realize the purpose, the utility model discloses a technical scheme is:

the utility model provides a novel reamer, includes the handle of a knife of using with the cooperation of lathe main shaft, the one end of handle of a knife is provided with the tail flat that the centre gripping of tool changing manipulator was used, and the other end of handle of a knife is the reamer body, the partly undercut of this tip of the reamer forms the chip groove, the side of this tip of the reamer, the leftover side position evenly distributed who is located the chip groove have a cutting edge and two guide blocks, and adjacent chip groove of cutting edge, cutting edge and guide block are the protruding setting of rectangle, and the guide block highly is less than the cutting edge, this internal center apopore that runs through whole reamer body that still is equipped with of reamer, and the delivery port of center apopore sets up in the chip groove.

The utility model discloses technical scheme's further improvement lies in: the top of cutting edge is provided with the cutting edge, and the cutting edge is certain angle slope setting, and the cutting edge is towards one side of chip pocket.

The utility model discloses technical scheme's further improvement lies in: the outer circle radius of the guide block is 0.05-0.10mm smaller than the radius of the bottom hole of the hole to be processed, and the outer circle radius of the guide block is the distance from the circle center of the end part of the reamer body to the outermost end of the guide block.

The utility model discloses technical scheme's further improvement lies in: the cutting edge is made of a hard alloy material with the hardness of 60-70HRC and is arranged on the side face of the reamer body in a welding mode.

The utility model discloses technical scheme's further improvement lies in: the central water outlet is connected with a water spraying hole of the machine tool, and the water pressure of the water spraying hole is 2.8-3.2 MPa.

Since the technical scheme is used, the utility model discloses the technological effect who gains has:

the utility model discloses avoided traditional reamer to appear the emergence of incline phenomenon along the bottom outlet in the reaming process course of working, the size precision in the hole that the hinge came out is better with roughness value, can merge into one process with the thick of reaming processing, the twice preface of finish reaming, has practiced thrift the processing cost.

The guide block of the utility model can firmly coincide the center of the reamer with the design center, and the phenomenon of deflection can not occur; the polishing action of the guide block also results in a significant reduction in the roughness of the inner bore.

The central water outlet hole of the utility model sprays cooling liquid with pressure to process and cool the processing part, thereby preventing the problems of too fast cutter abrasion, size deviation of the processing part and the like caused by lack of cutting and cooling; the cutting chips accumulated in the chip grooves can be flushed away in time, the cutting liquid pressure can be offset with the machining resistance, and the precision of the machined hole is improved.

The utility model discloses a reamer afterbody is equipped with the chip groove, can avoid single processing chip removal phenomenon to appear, avoids because the guide block that causes when the chip removal wearing and tearing reduce the roughness in processing hole.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a front view of the present invention;

wherein, 1, cutting edge, 2, guide block, 3, chip groove, 4, central apopore, 5, handle of a knife, 6, the tail is flat.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments, which are illustrative only of some, but not all, embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A novel reamer, as shown in fig. 1-2: the tool changing device comprises a tool shank 5 matched with a machine tool spindle and a tail flat 6 arranged on one end face of the tool changing manipulator for clamping, wherein a reamer body is arranged at the other end of the tool shank 5. The reamer body is including setting up a cutting edge 1 and two guide blocks 2 on the reamer body side, cutting edge 1 and 2 equipartitions of guide block are in the reamer body circumference outside chip groove 3. The cutting edge 1 is made of a hard alloy material with the hardness of 60-70HRC, is arranged on the side surface of the reamer body in a welding mode and is responsible for processing a hole system; the excircle radius of the guide block 2 is 0.05-0.10mm smaller than the radius of the bottom hole of the hole to be processed, the guide block 2 is responsible for guiding, so that the processing deflection is prevented, and meanwhile, the guide block 2 also has a polishing effect, so that the roughness of the processed inner hole is obviously reduced. One side of tip, cutting edge 1 of reamer body is equipped with chip groove 3, can store the smear metal when processing at every turn, avoids single processing the chip removal phenomenon to appear and because the guide block wearing and tearing condition that the chip removal caused, reduces the roughness in processing hole. The reamer is characterized in that a central water outlet hole 4 is further formed in the reamer body, the central water outlet hole 4 is connected with a water spraying hole of a machine tool, a water outlet is formed in a chip groove 3, and water pressure capable of being sprayed is 2.8-3.2Mpa water or cooling liquid.

Adopt respectively the utility model discloses the novel reamer of preparing and traditional reamer carry out the reaming process in phi 10mm hole, ream 3 holes respectively, the parameter contrast result in hole that obtains as follows:

Claims

1. the utility model provides a novel reamer, includes handle of a knife (5) of using with the cooperation of lathe main shaft, the one end of handle of a knife (5) is provided with tail flat (6) that tool changing manipulator centre gripping was used, its characterized in that: the other end of handle of a knife (5) is the reamer body, the partly undercut of this tip of reamer forms chip groove (3), the side of this tip of reamer, the surplus side position department evenly distributed who is located chip groove (3) have a cutting edge (1) and two guide blocks (2), and cutting edge (1) adjacent chip groove (3), cutting edge (1) and guide block (2) are the protruding setting of rectangle, and highly be less than cutting edge (1) of guide block (2), this internal central apopore (4) that run through whole reamer body that still is equipped with of reamer, and the delivery port of central apopore (4) sets up in chip groove (3).

2. The novel reamer of claim 1 wherein: the top of cutting edge (1) is provided with the cutting edge, and the cutting edge is certain angle slope setting, and the cutting edge is towards one side of chip pocket (3).

3. The new reamer of claim 1 or 2 wherein: the excircle radius of the guide block (2) is 0.05-0.10mm smaller than the radius of the bottom hole of the hole to be processed.

4. The new reamer of claim 1 or 2 wherein: the cutting edge (1) is made of a hard alloy material with the hardness of 60-70HRC and is arranged on the side surface of the reamer body in a welding mode.

5. The novel reamer of claim 1 wherein: the central water outlet (4) is connected with a water spraying hole of the machine tool, and the water pressure of the water spraying hole is 2.8-3.2 MPa.