CN211565314U

CN211565314U - Cutter trimming device linked with numerical control machine tool

Info

Publication number: CN211565314U
Application number: CN201922190960.XU
Authority: CN
Inventors: 胡宇川; 马雄峰
Original assignee: Beijing Jingdiao Group Co Ltd
Current assignee: Beijing Jingdiao Group Co Ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-09-25
Anticipated expiration: 2029-12-10

Abstract

The utility model relates to a cutter dressing device linked with a numerical control machine tool, which consists of a base, a low-speed revolving unit, a high-speed revolving unit and a dressing tool, wherein the base is arranged inside the numerical control machine tool, the low-speed revolving unit is arranged on the base, and the revolving axis of the low-speed revolving unit is parallel to the X axis or the Y axis of the machine tool; the high-speed rotating unit is vertically arranged at the output end of the low-speed rotating unit, and the dressing tool is arranged on the high-speed rotating unit, rotates around the rotating center of the high-speed rotating unit at a high speed on one hand, and swings around the rotating axis of the low-speed rotating unit along with the high-speed rotating unit in a reciprocating manner on the other hand; the rotary motion of the high-speed rotary unit, the swing of the low-speed rotary unit and the linear feed motion of the machine tool are controlled by the numerical control system of the machine tool in a linkage manner. The utility model realizes the on-machine finishing of the cutter in the processing process, and has high automation degree; and the trimming of different positions and shapes of the cutter can be realized, the trimming precision is high, and the reliability is strong.

Description

Cutter trimming device linked with numerical control machine tool

Technical Field

The utility model belongs to the numerical control processing field, in particular to cutter trimming device with the linkage of digit control machine tool.

Background

When a numerical control machining center is used for machining parts with complex, precise, small and variable shapes, a plurality of procedures such as milling, grinding, drilling, twisting, spot facing or tapping and the like are often required to be completed in one-time clamping as much as possible so as to improve the precision of workpieces. In the machining process, the cutter gradually loses precision due to wear passivation, so that the machining precision of the workpiece is affected, and therefore the cutter needs to be continuously trimmed to generate a new sharp profile, and meanwhile, the precision is kept consistent. However, the existing numerical control machining center does not have the functions of trimming the cutter in the machine and linkage trimming, the cutter is usually trimmed outside the machine after being detached, and the automatic trimming degree is low; meanwhile, the method does not have the function of detecting the trimming degree of the cutter, the on-machine compensation calculation of the cutter size cannot be carried out, and the trimming precision is low; in addition, the existing cutter dresser is generally driven by a low-speed motor, so that the size of a dressing tool is often larger to achieve higher linear speed, the dynamic balance precision of the dresser is reduced, the dressing precision of a cutter cannot be guaranteed, and the precision machining requirement of a high-precision workpiece cannot be met.

Disclosure of Invention

An object of the utility model is to overcome prior art's is not enough, provides a simple structure, and it is high to maintain the precision, can with the built-in cutter trimming device of digit control machine tool linkage.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme: a cutter dressing device linked with a numerical control machine tool consists of a base, a low-speed rotary unit, a high-speed rotary unit and a dressing tool, wherein the base is arranged in the numerical control machine tool; the high-speed rotating unit is vertically arranged at the output end of the low-speed rotating unit, and the dressing tool is arranged on the high-speed rotating unit, rotates around the rotating center of the high-speed rotating unit at a high speed on one hand, and swings around the rotating axis of the low-speed rotating unit along with the high-speed rotating unit in a reciprocating manner on the other hand; the rotary motion of the high-speed rotary unit, the swing of the low-speed rotary unit and the linear feed motion of the machine tool are controlled by the numerical control system of the machine tool in a linkage manner.

According to the cutter trimming device linked with the numerical control machine tool, the measuring head is arranged on the outer side of the high-speed rotating unit, the size of the cutter can be measured on machine, the measurement result is fed back to the numerical control system, and the cutter size is compensated and corrected by the numerical control system.

According to the cutter trimming device linked with the numerical control machine tool, the high-speed rotating unit comprises a high-speed motor, and the rotating speed is more than or equal to 10000 rpm.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model is fixed inside the numerical control machine tool, the on-machine finishing of the cutter in the processing process can be realized through the numerical control system, the cutter does not need to be disassembled, and the automation degree is high; the device can be matched with a machine tool spindle to carry out linkage trimming, trimming of different positions and shapes of the cutter can be realized, and one set of device can solve the trimming problem of different cutters and is flexible and efficient; meanwhile, the trimming tool is driven to rotate by a high-speed motor, so that a higher linear speed can be obtained by a smaller size, and the trimming tool is compact in structure, high in dynamic balance precision, strong in reliability and good in trimming precision consistency. Additionally, the utility model discloses be furnished with the gauge head and can carry out the on-line measurement to the cutter size, carry out accurate compensation to the cutter size through numerical control system, effectively improve and repair the precision, guarantee the machining precision.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the working state of the present invention.

Fig. 3 is a schematic view of the installation structure of the present invention and a machine tool.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 3, the present invention provides a tool dresser for linking with a numerical control machine tool, which comprises a base 1, a low-speed rotation unit 2, a high-speed rotation unit 3, a dresser 4 and a measuring head 5. The base 1 is arranged in the numerical control machine tool, the low-speed rotation unit 2 is arranged on the base 1, and the rotation axis of the low-speed rotation unit is parallel to the Y-axis direction of the machine tool; the high-speed rotation unit 3 is vertically arranged at the output end of the low-speed rotation unit 2 and can swing back and forth around the axis of the Y axis under the driving of the low-speed rotation unit 2. The dressing tool 4 is mounted on the high-speed revolving unit 3, and on one hand, the dressing tool rotates around the revolving center thereof at a high speed under the driving of the high-speed revolving unit 3, and on the other hand, the dressing tool can swing around the Y axis of the machine tool along with the high-speed revolving unit 3. The rotary motion of the high-speed rotary unit 3 and the swing of the low-speed rotary unit 2 are uniformly controlled by a numerical control system of the machine tool and form linkage fit with the linear feed motion of the machine tool. The measuring head 5 is fixedly arranged on the outer side wall of the high-speed rotating unit 3, can perform on-machine measurement on the size of a tool on a machine tool spindle, feeds a measurement result back to a numerical control system, and performs compensation correction on the size of the tool by the numerical control system.

In order to obtain a high linear speed of the dressing tool 4 at a small size and thus ensure high dynamic balance accuracy, the high-speed revolving unit is driven by a high-speed motor with a rotating speed of more than 10000 rpm.

When the cutter is maintained, the machine tool main shaft drives the cutter to perform linear feeding motion, the cutter is correctly positioned, the maintenance tool 4 stably rotates around the axis of the cutter at a high speed on one hand, and the low-speed rotation unit 2 drives the cutter to swing on the other hand according to the shape of the cutter, so that three working states of cutter maintenance are realized through the matching with the machine tool main shaft: in the vertical dressing, namely the low-speed rotating unit 2 is positioned at the initial position, and the rotating shaft of the dressing tool 4 is in a vertical state; horizontal dressing is carried out on the machine, namely the low-speed rotating unit 2 is positioned at a position of +/-90 degrees, and the rotating shaft of the dressing tool 4 is in a horizontal state; and (3) in machine linkage finishing, namely the low-speed rotary unit 2 continuously swings, and the finishing tool 4 is in linkage fit with the spindle of the machine tool. The on-machine finishing of the cutter in different positions and different shapes can be realized through three different working modes. Meanwhile, the size of the cutter is measured on machine through the measuring head 5, accurate compensation is carried out, the finishing precision is improved, the finishing process is efficient and flexible, and the finishing quality is stable and reliable.

Although the present invention has been described in detail, the present invention is not limited thereto, and those skilled in the art can make various modifications according to the principle of the present invention. Therefore, modifications made in accordance with the principles of the present invention should be understood to fall within the scope of the present invention.

Claims

1. A cutter dressing device linked with a numerical control machine tool is characterized by comprising a base, a low-speed rotary unit, a high-speed rotary unit and a dressing tool, wherein the base is arranged in the numerical control machine tool; the high-speed rotating unit is vertically arranged at the output end of the low-speed rotating unit, and the dressing tool is arranged on the high-speed rotating unit, rotates around the rotating center of the high-speed rotating unit at a high speed on one hand, and swings around the rotating axis of the low-speed rotating unit along with the high-speed rotating unit in a reciprocating manner on the other hand; the rotary motion of the high-speed rotary unit, the swing of the low-speed rotary unit and the linear feed motion of the machine tool are controlled by the numerical control system of the machine tool in a linkage manner.

2. The tool dresser device in linkage with the numerical control machine tool according to claim 1, wherein a measuring head is arranged on the outer side of the high-speed rotating unit, the tool size can be measured on machine, the measurement result is fed back to the numerical control system, and the tool size is compensated and corrected by the numerical control system.

3. The tool dresser device in conjunction with a numerically controlled machine tool according to claim 1 or 2, wherein the high-speed rotating unit comprises a high-speed motor, and the rotating speed is greater than or equal to 10000 rpm.