CN205465483U - Precision cutting tool grinds machine - Google Patents

Precision cutting tool grinds machine Download PDF

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Publication number
CN205465483U
CN205465483U CN201620081132.6U CN201620081132U CN205465483U CN 205465483 U CN205465483 U CN 205465483U CN 201620081132 U CN201620081132 U CN 201620081132U CN 205465483 U CN205465483 U CN 205465483U
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China
Prior art keywords
main shaft
workbench
axle sleeve
cutting tool
cast iron
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Active
Application number
CN201620081132.6U
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Chinese (zh)
Inventor
焦尚才
李素亮
王国海
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Beijing Heprison Ultra Precision Technology Co., Ltd.
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Beijing High Precision Technology Development Co ltd
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Priority to CN201620081132.6U priority Critical patent/CN205465483U/en
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Abstract

The utility model discloses a precision cutting tool grinds machine, it includes organism, workstation, grinding main shaft and cast iron abrasive disc, the workstation set up in on the organism, seted up first counter bore along vertical direction on the workstation on the diapire of first counter bore, seted up first through -hole along vertical direction, first through -hole is the same with the axial lead of first counter bore, just the diameter of first through -hole is less than the diameter of first counter bore, thereby the inside step that forms of workstation, grind the main shaft set up in in the first counter bore and first through -hole of workstation, and be fixed in on the step, the cast iron abrasive disc is fixed in on the grinding main shaft, by the grinding main shaft drives the cast iron abrasive disc rotates. The utility model discloses a fixed main shaft that grinds on the workstation for grind the main shaft and have higher movement accuracy, and drive the motion of cast iron abrasive disc through grinding the main shaft, thereby realize the precision grinding to the cutter.

Description

Precision cutting tool grinder
Technical field
This utility model relates to a kind of machining tool, particularly relates to a kind of precision cutting tool grinder.
Background technology
The basis of precise and ultraprecise machining technology is ultra-precision machine tool and Cutting Tools for Superprecision Machining.Essence the most at present Close should be used for Ultraprecision Machining sees, it is mainly the mirror with Natural Diamond Tools cutting as representative Facing cut is cut, diamond turning and mirror grinding technology, is widely used for processing precise optics, quasiconductor Silicon chip and non-ferrous metal ultraprecise part, for stealth aircraft, helicopter, tank, missile homer, scouting The high-fidelity conformal optics curved surface cylinder ribs such as satellite, saturating, reflecting mirror and Fresnel Lenses and various guided missile, boat The Ultra-precision machining of aerospace vehicle navigation gyroscope provides technological means, is also that it is civilian simultaneously Technical field is promoted and is laid a good foundation.
Utilizing Natural Diamond Tools to carry out ultra-precise cutting processing is the main of acquisition high-quality machined surface Method, uses Natural Diamond Tools processing ball curved surface, aspheric curve part, can ensure that the texture of cutting is thick Rugosity is less, less on the impact of finished surface after easily installing cutter and tool wear.But Circular Nose Cutting Edge The difficulty (requiring simultaneously to produce sharpness and arc accuracy) of diamond cutter manufacturing process, particularly sharpens Technique hinders the development of China's ultraprecise curved surface cutting technology always.
The manufacture of arc-blade diamond lathe tool include diamond crystal orientation, sharpening, grinding quality test and Cutter hub welding etc., its sharpening equipment precision and tool dresser technology are its keys manufactured.
The grinding method of diamond cutter has multiple, and mechanical lapping is the most traditional method, the method technique Simply, low cost, the diamond crystal through fine gtinding can obtain high-quality surface.At diamond Tool sharpening apparatus research aspect, the emphasis of research is on milling apparatus main shaft.
The main shaft of grinder of the prior art as it is shown in figure 1, it uses the form that Double Tops apical branch supports, including Cast iron abrasive disk and belt wheel, main shaft point is contained on two good redwood of concentricity, by driven by motor belt wheel, Belt wheel drives abrasive disk synchronous rotary together with main shaft.During grinding, diamond small bit tool is contained in fixture, by wanting The angle adjustment asked is good, adds a fixed load and is pressed on abrasive disk, then adds diadust and grind diamond Mill processing.This supporting form easily weares and teares, and kinematic accuracy is inadequate, can only carry out the corase grind of diamond cutter Technique.
For this reason, it may be necessary to design a kind of new precision cutting tool grinder, to improve the grinding to diamond cutter.
Utility model content
This utility model purpose is to provide a kind of precision cutting tool grinder, and it can carry out essence to diamond cutter Close grinding.
This utility model solves technical problem and adopts the following technical scheme that a kind of precision cutting tool grinder, its bag Include body, workbench, grinding spindle and cast iron abrasive disk;
Described workbench is arranged on described body;
The first counterbore is vertically offered on described workbench, on the diapire of described first counterbore, edge Vertical direction offers the first through hole, and the axial line of described first through hole and the first counterbore is identical, and described The diameter of one through hole is less than the diameter of the first counterbore, thus is internally formed a step at described workbench;
Described grinding spindle is arranged in the first counterbore and first through hole of described workbench, and is fixed on described On step;
Described cast iron abrasive disk is fixed on described grinding spindle, described grinding spindle drive described cast iron to grind Mill rotates.
Optionally, described grinding spindle includes axle sleeve, main shaft, upper end cover, motor and shaft coupling;
The outer peripheral face of described axle sleeve upper end is formed with flange, and described flange is arranged on the step of described workbench;
Described main shaft is rotatablely arranged in described axle sleeve by air-bearing, and the upper end of described axle sleeve is formed Having step, the upper end of described main shaft to be formed with flange, the flange of described main shaft is arranged at institute by air-bearing State in the step of axle sleeve;Described upper end cover is fixed on described axle sleeve, and described main shaft is through described upper end cover It is positioned at the outside of described upper end cover;It is also equipped with air-bearing between described upper end cover and the flange of main shaft;
Described motor is fixed on the lower end of described axle sleeve, and described motor passes through a flexible connection with described The lower end of main shaft connects, to drive described main axis by described motor.
Optionally, described workbench uses marble material to prepare.
Optionally, described cast iron abrasive disk is high-phosphorous iron abrasive disk.
Optionally, described motor is frequency control motor.
This utility model has the advantages that this utility model to pass through on the table and fixes grinding spindle, Make grinding spindle have higher kinematic accuracy, and drive cast iron abrasive disk to move by grinding spindle, from And realize the precise finiss to cutter.
Accompanying drawing explanation
Fig. 1 is the structural representation of grinder of the prior art;
Fig. 2 is the structural representation of precision cutting tool grinder of the present utility model;
Fig. 3 is the structural representation of the grinding spindle of precision cutting tool grinder of the present utility model;
Fig. 4 is the structural representation of the cast iron abrasive disk of precision cutting tool grinder of the present utility model;
Fig. 5 is the installation site schematic diagram of the castor of precision cutting tool grinder of the present utility model;
In figure, labelling is illustrated as: 1-body;2-castor;3-workbench;4-grinding spindle;41-axle sleeve;42- Main shaft;43-upper end cover;44-motor;45-shaft coupling;5-cast iron abrasive disk;6-protector;7-chain of command Plate.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the technical solution of the utility model is further elaborated.
Embodiment 1
Present embodiments providing a kind of precision cutting tool grinder, it includes body, castor, workbench, grinding Main shaft and cast iron abrasive disk.
Described castor is fixed on the lower section of described body, to make the described body can be by side by described castor Just mobile;In the present embodiment, the quantity of described castor is five, four castors in described five castors Being respectively arranged at four corners of the lower surface of described body, another is arranged at a crossbeam of described body On;It is highly preferred that described castor can be good fortune something that gives the game away wheel, when precision cutting tool grinder of the present utility model needs Time to be moved, i.e. can be realized by good fortune something that gives the game away wheel.When five castors are used, can be by wherein three Individual leveling worktable, puts down using remaining two and supports as auxiliary, to reduce vibration, it is ensured that grind flat Stability.
Being provided with workbench on described body, in the present embodiment, the material of described workbench is marble.And Described workbench is connected by screw in frame, and described frame can be welded by square steel, Er Qiesuo The surrounding stating frame is mounted on protector 6, and described protector can be sheet metal component, and all offers out Mouthful, thus ease of assembly personnel install the equipment such as grinding spindle, and it is also convenient for maintenance.
For realizing the operation to described main shaft, in the present embodiment, described precision cutting tool grinder also includes controlling Panel, the motor of described grinding spindle can be controlled by described control panel, thus to described accurate cutter Tool grinder is controlled.
The first counterbore is vertically offered on described workbench, on the diapire of described first counterbore, edge Vertical direction offers the first through hole, and the axial line of described first through hole and the first counterbore is identical, and described The diameter of one through hole is less than the diameter of the first counterbore, thus is internally formed a step at described workbench.
Described grinding spindle is arranged in the first counterbore and first through hole of described workbench, and is fixed on described On step;
Described cast iron abrasive disk is fixed on described grinding spindle, described grinding spindle drive described cast iron to grind Mill rotates;In the present embodiment, described cast iron abrasive disk can be import high-quality high-phosphorous iron abrasive disk.
In the present embodiment, the precision of grinding spindle is directly connected to the grinding precision to cutter, needs for this to relate to And there is high-precision grinding spindle;But the precision index of grinding spindle includes main shaft end face run-out and radially jumps Dynamic two aspects, the two index determines dynamically putting down at process of lapping medium cast iron abrasive disk grinding work surface Face degree, and the consequent impact to diamond cutter, this will affect the linearity of cutting edge roundness, sword Mouth integrity and edge surface quality, can increase sharpening workload or basic sharpening does not go out high-quality cutter Tool.
To this end, it is empty to devise a kind of high accuracy that diamond cutter grinds, high rigidity of being suitable in the present embodiment Gas hydrostatic spindle, described grinding spindle includes axle sleeve 41, main shaft 42, upper end cover 43, motor 44 and shaft coupling Joint 45;
The outer peripheral face of described axle sleeve upper end is formed with flange, and described flange is arranged on the step of described workbench, So that described workbench can carry out accurate support and location by countershaft set.
Described main shaft is rotatablely arranged in described axle sleeve by air-bearing, in the present embodiment, and described axle The upper end of set is formed with step, and the upper end of described main shaft is also formed with flange, and the flange of described main shaft passes through gas Floating axle holds in the step being arranged at described axle sleeve;Described upper end cover is fixed on described axle sleeve, and described main shaft The outside of described upper end cover it is positioned at through described upper end cover;It is also provided with between described upper end cover and the flange of main shaft There is air-bearing.
Described motor is fixed on the lower end of described axle sleeve, and described motor is by under shaft coupling and described main shaft End connects, to drive described main axis by described motor.
In the present embodiment, described motor can use the VFG series frequency control motor of Shanghai Fu Tian electrical machinery plant, Described shaft coupling is flexible connection, and by described main shaft and motor are carried out dynamic balancing regulation so that grind That grinds main shaft has less vibration, and is suitable for the grinding of diamond cutter.
Grinding spindle in the present embodiment uses the compressed air through lyophilizing and two-stage secondary filter as lubrication Agent, has the advantage that
(1) precision is high: air film has error homogenization, high two orders of magnitude of its ratio of precision rolling bearing, And vibrating little, noise is low;
(2) frictional dissipation is little: gas viscosity is only the one thousandth of lubricating oil viscosity, so air film internal friction The friction torque caused is than low three orders of magnitude of oil film;
(3) pollution-free: lubrication gas is generally compressed air or noble gas, and being discharged into air will not produce Pollute;The vibration of bearing is little, noise is low, and environment does not the most constitute pollution;
(4) life-span is long: aerostatic bearing directly contacts without metal, and the theoretical life-span is endless.Action pneumatic Body bearing start and stop moment exists rubs between metal, and the life-span is necessarily affected, but also at more than 3000h.
Wherein the major parameter of grinding spindle is: main shaft rated speed: 3000r/min, electrodeless adjustable speed;Main Axle rotating accuracy: axially 0.1um, radially 0.2um;Rigidity: axially 30kg/ μm, footpath 15kg/ μm forward, Rear 17kg/ μm;Supply gas pressure: 0.4MPa-0.45MPa, freeze-drying compressed air, filters through two-stage essence;Make With environment: ambient temperature: 20 ± 2 DEG C, humidity requirement: 20% 50%.
Due to any rotor enclose rotate about the axis thereof time, due to the non-uniform mass relative to axis Produce centrifugal force.This uneven centrifugal action can cause vibration on grinding spindle, produces noise and adds Speed bearing wear, so that having a strong impact on performance and the life-span of product.After doing dynamic balance treatment, can be very The performance of grinding spindle is improved in big degree.
High-precision grinding spindle is the basis grinding high-precision diamond cutter, the flatness of cast iron abrasive disk Bad with dynamic balancing will have a strong impact on tool precision and cutting edge quality.This utility model utilizes dynamic balancing machine to master Axle axially, is radially balanced regulation, the dynamic balancing of final main shaft be transferred to vibration values be front end 0.4 μm, Rear end 0.2 μm.
Due to the high rigidity characteristic of diamond, the abrasive disk of common material can not meet use and require. The present embodiment have selected this material of high-phosphorous iron and is used as the material of cast iron abrasive disk, the feature of high-phosphorous iron Being that wearability is high, the use cycle is longer, uniform in material, good stability, sharpness sand high, upper easy, grinds The production efficiency of mill can improve more than 5 times than abrasive disk, and is readily available higher plane precision, warp Nano-precision can be accomplished after crossing stabilized treatment.It is usually used in Ultra-precision Turning laboratory.General high-phosphorous iron flat board Service precision is all more than 000 grade of flat board of GB cast iron surface plate standard.
The high-phosphorous iron abrasive disk of the present embodiment, after being installed on main shaft, is broken high-phosphorous iron with amesdial and is ground The working surface of dish, the jerk value of indicator is at about 2um.When the higher precision of needs, frock can be done Lathe carries out self-grind.
Changing abrasive disk for convenience, in the present embodiment, the upper end of described main shaft offers multiple screwed hole, institute State high-phosphorous iron abrasive disk to be fixed on described main shaft by screw, and identical with the axial line of described main shaft.
Precision cutting tool grinder of the present utility model, can not only be effectively improved the machining accuracy of product, also has Volume little, rotating speed is high, the technical advantage that stability is high, it is possible to extensively apply the grinding of diamond cutter. Can be used for rhinestone, PCB, CBN, rare earth element etc. the grinding etc. of tool materials.
The sequencing of above example only for ease of describing, does not represent the quality of embodiment.
Last it is noted that above example is only in order to illustrate the technical solution of the utility model, rather than right It limits;Although this utility model being described in detail with reference to previous embodiment, this area common Skilled artisans appreciate that the technical scheme described in foregoing embodiments still can be modified by it, Or wherein portion of techniques feature is carried out equivalent;And these amendments or replacement, do not make corresponding skill The essence of art scheme departs from the spirit and scope of this utility model each embodiment technical scheme.

Claims (5)

1. a precision cutting tool grinder, it is characterised in that include body, workbench, grinding spindle and casting Ferrum abrasive disk;
Described workbench is arranged on described body;
The first counterbore is vertically offered on described workbench, on the diapire of described first counterbore, edge Vertical direction offers the first through hole, and the axial line of described first through hole and the first counterbore is identical, and described The diameter of one through hole is less than the diameter of the first counterbore, thus is internally formed a step at described workbench;
Described grinding spindle is arranged in the first counterbore and first through hole of described workbench, and is fixed on described On step;
Described cast iron abrasive disk is fixed on described grinding spindle, described grinding spindle drive described cast iron to grind Mill rotates.
Precision cutting tool grinder the most according to claim 1, it is characterised in that described grinding spindle bag Include axle sleeve, main shaft, upper end cover, motor and shaft coupling;
The outer peripheral face of described axle sleeve upper end is formed with flange, and described flange is arranged on the step of described workbench;
Described main shaft is rotatablely arranged in described axle sleeve by air-bearing, and the upper end of described axle sleeve is formed Having step, the upper end of described main shaft to be formed with flange, the flange of described main shaft is arranged at institute by air-bearing State in the step of axle sleeve;Described upper end cover is fixed on described axle sleeve, and described main shaft is through described upper end cover It is positioned at the outside of described upper end cover;It is also equipped with air-bearing between described upper end cover and the flange of main shaft;
Described motor is fixed on the lower end of described axle sleeve, and described motor passes through a flexible connection with described The lower end of main shaft connects, to drive described main axis by described motor.
Precision cutting tool grinder the most according to claim 2, it is characterised in that described workbench uses Prepared by marble material.
Precision cutting tool grinder the most according to claim 3, it is characterised in that described cast iron abrasive disk For high-phosphorous iron abrasive disk.
Precision cutting tool grinder the most according to claim 4, it is characterised in that described motor is frequency conversion Buncher.
CN201620081132.6U 2016-01-27 2016-01-27 Precision cutting tool grinds machine Active CN205465483U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620081132.6U CN205465483U (en) 2016-01-27 2016-01-27 Precision cutting tool grinds machine

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Application Number Priority Date Filing Date Title
CN201620081132.6U CN205465483U (en) 2016-01-27 2016-01-27 Precision cutting tool grinds machine

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108817998A (en) * 2018-06-28 2018-11-16 芜湖新尚捷智能信息科技有限公司 A kind of intermetallic composite coating stock-removing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108817998A (en) * 2018-06-28 2018-11-16 芜湖新尚捷智能信息科技有限公司 A kind of intermetallic composite coating stock-removing machine

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20181221

Address after: 101599 Shuangjing Industrial Park, Shilibao, Miyun District, Beijing

Patentee after: Beijing Heprison Ultra Precision Technology Co., Ltd.

Address before: 101500 No. 86, Shilibao Village West Road, Shilibao Town, Miyun County, Beijing

Patentee before: Beijing High-Precision Technology Development Co., Ltd.

TR01 Transfer of patent right