CN112222533A

CN112222533A - Deep hole processing reamer

Info

Publication number: CN112222533A
Application number: CN202011014888.6A
Authority: CN
Inventors: 卢善伟; 李海青; 徐佩军
Original assignee: Jiangsu Liwei Intelligent Manufacturing Co ltd
Current assignee: Jiangsu Liwei Intelligent Manufacturing Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-01-15

Abstract

The invention relates to a reamer, in particular to a deep hole processing reamer, which comprises: the mounting handle is used for being connected with the reamer clamp; the top of the deep hole handle is arranged at the bottom of the mounting handle; the deep hole handle comprises a tool bit, the tool bit sets up the bottom of deep hole handle, just the diameter of tool bit is greater than the diameter of deep hole handle, be equipped with chisel edge, location cutting edge, main cutting edge, vice cutting edge and chip groove on the tool bit, location cutting edge symmetry sets up the both sides of chisel edge, the both ends of main cutting edge respectively with location cutting edge and vice cutting edge are connected, the chip groove is the helicla flute, the length of tool bit is not more than 10% of deep hole handle length. The deep hole processing reamer provided by the invention can be used for deep hole processing, and has the advantages of small tool vibration, good hole coaxiality, high processing precision and high processing efficiency.

Description

Deep hole processing reamer

Technical Field

The invention relates to a reamer, in particular to a deep hole processing reamer.

Background

Some parts are provided with a plurality of holes along the same axis, the plurality of holes form a deep hole integrally, and due to the fact that the coaxiality requirement of the plurality of holes is high and the precision requirement of the hole diameter is high, in order to meet the requirements of hole diameter precision and coaxiality, a slow-running wire cutting mode is generally adopted for processing, the processing precision of the slow-running wire cutting is high, but the working time is long, the cost is high, and the efficiency is low.

Disclosure of Invention

In order to solve the problems, the invention provides a deep hole processing reamer which can process deep holes, has small vibration of a cutter, good hole coaxiality, high processing precision and high processing efficiency, and the specific technical scheme is as follows:

BTA reamer includes: the mounting handle is used for being connected with the reamer clamp; the top of the deep hole handle is arranged at the bottom of the mounting handle; the tool bit is arranged at the bottom of the deep hole handle, the diameter of the tool bit is larger than that of the deep hole handle, a plurality of spirally arranged circumferential edges and chip grooves are arranged on the tool bit, and the circumferential edges are arranged in an unequal manner; the length of the tool bit is not more than 10% of the length of the deep hole handle.

Through adopting above-mentioned technical scheme, installation handle easy to assemble, the deep hole handle is used for guaranteeing the degree of depth in processing hole, and the length of tool bit is less, can improve the intensity of cutter, and the cutter vibration is little. The circumference sword is not the partition setting to adopt the spiral, can effectively reduce the vibration, thereby improve the quality of reaming, guarantee the axiality, the rotatory beat range of cutter is less than 0.005 mm. The length of the tool bit is smaller, and the diameter of the tool bit is larger than that of the deep hole handle, so that the deep hole handle is a complete cylinder or cone, and a longer chip removal groove does not need to be formed, thereby effectively ensuring the strength and reducing the vibration of the tool.

Further, the back taper of the deep hole handle is 0.6 degree.

Further, the grooving rake angle of the circumferential edge is 10 °, and the circumferential tooth clearance angle of the circumferential edge is 10 °

Further, the helix angle of the circumferential edge is 45 °.

Further, the deep hole processing reamer is made of tungsten carbide.

Compared with the prior art, the invention has the following beneficial effects:

the deep hole processing reamer provided by the invention can be used for deep hole processing, and has the advantages of small tool vibration, good hole coaxiality, high processing precision and high processing efficiency.

Drawings

FIG. 1 is a schematic structural view of a BTA reamer;

FIG. 2 is a schematic view of a tool tip;

FIG. 3 is a schematic view of a circumferential edge;

FIG. 4 is a bottom view of the cutter head;

fig. 5 is a schematic view of the structure of the workpiece.

Detailed Description

The invention will now be further described with reference to the accompanying drawings.

As shown in fig. 1 to 5, the BTA reamer includes: the mounting handle 2 is used for being connected with the reamer clamp; the top of the deep hole handle 3 is arranged at the bottom of the mounting handle 2; the deep hole drilling tool comprises a tool bit 4, wherein the tool bit 4 is arranged at the bottom of a deep hole handle 3, the diameter of the tool bit 4 is larger than that of the deep hole handle 3, a plurality of spirally arranged circumferential edges 41 and chip grooves 42 are arranged on the tool bit 4, and the circumferential edges 41 are arranged in an unequal manner; the length of the tool bit 4 is not more than 10% of the length of the deep hole shank 3.

The installation handle 2 is easy to assemble, and deep hole handle 3 is used for guaranteeing the degree of depth in processing hole, and the length of tool bit 4 is less, can improve the intensity of cutter, and the cutter vibration is little. The circumferential blades 41 are arranged in an unequal manner and are spiral, so that vibration can be effectively reduced, the quality of reaming is improved, the coaxiality is ensured, and the rotating deflection amplitude of the cutter is less than 0.005 mm. The length of the tool bit 4 is smaller, and the diameter is larger than that of the deep hole handle 3, so that the deep hole handle 3 is a complete cylinder or cone, and a longer chip removal groove 42 is not required to be formed, thereby effectively ensuring the strength and reducing the vibration of the tool.

The back taper of the deep hole handle 3 is 0.6 degree.

The peripheral cutting edge 41 has a rake angle E of 10 DEG and a relief angle F of 10 DEG

The helix angle G of the circumferential edge 41 is 45 °.

The deep hole processing reamer is made of tungsten carbide.

In at least one embodiment, four circumferential blades are provided, and the included angles of the four circumferential blades are 88 degrees, 92 degrees, 86 degrees and 94 degrees in sequence.

As shown in fig. 1 and 5, a plurality of concentric deep holes on a workpiece are formed at one time through a deep hole reamer, and are processed by a traditional wire cutting and winding mode to be changed into numerical control machine processing, so that the working hours can be reduced by 80% -90%, the working hours are reduced, the processing efficiency is improved, and the cost is reduced.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive step, which shall fall within the scope of the appended claims.

Claims

1. BTA reamer, its characterized in that includes:

the mounting handle is used for being connected with the reamer clamp;

the top of the deep hole handle is arranged at the bottom of the mounting handle;

the tool bit is arranged at the bottom of the deep hole handle, the diameter of the tool bit is larger than that of the deep hole handle, a plurality of spirally arranged circumferential edges and chip grooves are arranged on the tool bit, and the circumferential edges are arranged in an unequal manner; the length of the tool bit is not more than 10% of the length of the deep hole handle.

2. The BTA reamer of claim 1,

the back taper of the deep hole handle is 0.6 degree.

3. The BTA reamer of claim 1,

the grooving front angle of the circumferential edge is 10 degrees, and the circumferential tooth clearance angle of the circumferential edge is 10 degrees.

4. The BTA reamer of claim 1,

the helix angle of the circumferential edge is 45 °.

5. The BTA reamer of claim 1,

the deep hole processing reamer is made of tungsten carbide.