CN201427274Y

CN201427274Y - multistage variable-speed milling and grinding machine

Info

Publication number: CN201427274Y
Application number: CN2009201885350U
Authority: CN
Inventors: 范龙生; 芦小英; 赵华; 吴秋生; 焦庆华; 吴勇; 赖京科
Original assignee: Jingdezhen City Zhongtian Crystal Technology Co Ltd
Current assignee: Jingdezhen City Zhongtian Crystal Technology Co Ltd
Priority date: 2009-08-10
Filing date: 2009-08-10
Publication date: 2010-03-24
Anticipated expiration: 2019-08-10

Abstract

The utility model relates to a multistage variable-speed milling and grinding machine, wherein a programmable controller (20), a frequency-converter (18), a servo control module (19) and a man-machineinterface (17) can form an electric control system for changing the rotation speed of a main shaft, and the process of milling and grinding is divided into three stages of rough grinding, fine grinding and polishing. The machining allowances of rough grinding and fine grinding can be distributed according to the machining allowances and materials of work-pieces, simultaneously, the rotation speeds of work-pieces in the rough grinding, the fine grinding and the polishing stages are set, the problems of slow machining speed and poor precision brought by adopting one rotation speed to mill and grind the work-pieces in the prior art are solved, and the multistage variable-speed milling and grinding machine improves the machining efficiency, reduces the chrysanthemum lines on the surface of glass, and improves the surface precision of elements.

Description

The multi-change speed milling and grinding machine

Technical field

The utility model belongs to the milling contour machining equipment of workpiece, be specifically related to a kind of multi-change speed milling and grinding machine, be applicable to the sphere or the plane deep processing industry of crisp and hard material (as optical glass, sapphire, engineering ceramics etc.) and other material processing field, be mainly used in the processing of concavo-convex sphere and plane.

Background technology

Milling and grinding machine is one of most important equipment in spheres such as glass or the plane deep processing equipment, continuous development and growth along with glass deep processing industry, market is also increasing to the demand of milling and grinding machine, especially stricter to the surperficial chrysanthemum line required precision of the product that processed, problems of the prior art: domestic existing sphere milling process technology is that workpiece spindle adopts a kind of rotating speed to realize milling to workpiece, and this technology process velocity is slow, low precision.

Summary of the invention

In order to solve the problems of the technologies described above, the purpose of this utility model provides a kind of novel milling and grinding machine, realizes that segmentation divides fast grinding, to improve product precision and work efficiency.

In order to achieve the above object, the utility model has been taked following technical scheme: a kind of multi-change speed milling and grinding machine, comprise variable speed electric motors, particularly, gear pair, work spindle, emery wheel and electric control system, the hardware that it is characterized in that electric control system is by Programmable Logic Controller, frequency converter, SERVO CONTROL module and man-machine interface constitute, its interactively is: by the man-machine interface input corase grind stage, the correct grinding stage, the related process parameter in polishing stage, by Programmable Logic Controller computing related process parameter control frequency converter, the SERVO CONTROL module, and then drive variable speed electric motors, particularly and servomotor respectively, by the gear pair transmission, make the rotary speed that part to be processed obtains setting, pay by ball screw and to drive work spindle and move axially, make the feed speed that part to be processed obtains setting.

In corase grind, correct grinding, three grinding stages of polishing, the speed that drives variable speed electric motors, particularly can be set at three kinds of different rotating speeds.

The utility model provides a kind of brand-new work spindle mechanism and electric control system, that is: by electric control system and main axle structure to change the speed of mainshaft and cutting feed speed, cutting scheme according to crisp and hard material (as optical glass, sapphire, engineering ceramics etc.), promptly under the effect of diamond abrasive grain, when the cutting depth and the cutting amount of feeding are big, crisp and hard material produces hoof shape crackle, and numerous crackle hands over mutually and pass through, and makes smear metal be powdery and peels off matrix; When the cutting depth and the cutting amount of feeding were all very little, crisp and hard material did not ftracture, and only forms smooth small plasticity groove, divides corase grind, correct grinding, polishing three phases with the milling process of product; Allowance and material according to product are distributed the allowance of roughly grinding and finish grinding, corase grind, correct grinding, the workpiece rotational frequency in polishing stage and cutting feed speed are set simultaneously, the polishing stage is provided with in order further to improve product surface fineness and precision, can be set at not glass-cutting surplus or micro cutting surplus.It is big that corase grind stage process surplus can be set generally speaking, and workpiece rotational frequency height, cutting feed speed are fast, to raise the efficiency; Correct grinding stage process surplus is less, workpiece rotational frequency and cutting feed speed all are lower than corase grind, to improve surface smoothness and surface precision; Polishing stage workpiece rotational frequency adopts the speed lower than correct grinding speed, and trace or chipping allowance not are with further raising surface smoothness and surface accuracy; In this three grinding stages, the method for grinding of three kinds of different workpiece rotational frequencies and cutting speed has improved working (machining) efficiency, improves piece surface precision and fineness simultaneously.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further specified:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is circuit theory diagrams of the present utility model.

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.

As shown in Fig. 1, Fig. 2, the grinding process of product is: the variable speed electric motors, particularly 1 that is contained on the headstock passes through

gear pair

2,12 transmissions, drives cartridge clip 6, part to be processed 7 rotations; Be contained in servomotor 16 on the mount pad 15 and pay 9 by ball screw and make work spindle 5, cartridge clip 6, part to be processed 7 realize axially-movables, it is carried out grinding by emery wheel 8.Variable speed electric motors, particularly 1 preferred gear reduction motor, Hall switch 4 control limit on the right-right-hand limit positions, Hall switch 11 control limit on the left positions.

Before the work, blank dimension and final size according to product require to determine allowance and carry out equipment debugging, distribute corase grind and correct grinding surplus according to allowance, and thick, the correct grinding surplus of input and equipment have related parameter in the workpiece rotational frequency in idle stroke operation, corase grind stage, correct grinding stage, polishing stage, feed speed, the grinding number of turns etc. on man-machine interface 17, these parameter instructions are carried out computing by Programmable Logic Controller 20, to finish the equipment debugging process.During work; start button; send instructions to 16 actions of SERVO CONTROL module 19 driving servomotors by Programmable Logic Controller 20; pay 9 by ball screw and drive installing plate 10; work spindle 5; cartridge clip 6; part to be processed 7 from by the mechanical zero fast feed of Hall switch 3 control to the emery wheel position; the corase grind rotating speed of setting by frequency converter 18 starts variable speed electric motors, particularly 1 automatically; by gear pair 2; 12 driving-belts are moved and are pressed from both sides 6; part to be processed 7 rotations; 8 pairs of workpiece of emery wheel carry out grinding and enter the corase grind stage; when the corase grind stage set have related parameter to be finished after; SERVO CONTROL module 19 is sent the rotating speed that instruction changes servomotor 16; frequency converter 18 sends the rotating speed that instruction changes variable speed electric motors, particularly 1 simultaneously; make workpiece enter the correct grinding stage with different rotating speeds and feed speed; after the correct grinding surplus that sets and the correct grinding number of turns are finished; frequency converter 18 sends the rotating speed that instruction changes variable speed electric motors, particularly 1; make workpiece enter the polishing stage with different rotating speeds; after the polishing number of turns that sets is finished; variable speed electric motors, particularly is shut down; servomotor 16 is paid 9 by ball screw and is driven the workpiece mechanical zero that moves to right back fast; inching button; after continuing, moves work spindle 5; when push rod 13 is run into stop screw 14 and the slight compression amount is arranged; cartridge clip 6 automatic spreadings; take off manufactured part; inching button again; workpiece spindle returns mechanical zero automatically; equipment is finished the fabrication cycles of a part; also realized three grinding stages simultaneously; three kinds of different workpiece rotational frequencies and cutting speed are arranged; improve working (machining) efficiency so greatly, improved piece surface precision and fineness simultaneously.

Claims

1, a kind of multi-change speed milling and grinding machine, comprise variable speed electric motors, particularly (1), gear pair (2,12), work spindle (5), emery wheel (8) and electric control system, the hardware that it is characterized in that electric control system is by Programmable Logic Controller (20), frequency converter (18), SERVO CONTROL module (19) and man-machine interface (17) constitute, its interactively is: by man-machine interface (17) the input corase grind stage, the correct grinding stage, the related process parameter in polishing stage, by Programmable Logic Controller (20) computing related process parameter control frequency converter (18), SERVO CONTROL module (19), and then drive variable speed electric motors, particularly (1) and servomotor (16) respectively, by gear pair (2,12) transmission, make the rotary speed that part to be processed (7) obtains setting, pay (9) by ball screw and drive work spindles (5) and move axially, make the feed speed that part to be processed (7) obtains setting.

2,, it is characterized in that the speed that drives variable speed electric motors, particularly (1) is divided into three grades according to the described multi-change speed milling and grinding machine of claim 1.

3,, it is characterized in that variable speed electric motors, particularly (1) is the gear reduction motor according to the described multi-change speed milling and grinding machine of claim 1.