CN112428082A

CN112428082A - Aspheric surface grinding device controlled by macro program and use method thereof

Info

Publication number: CN112428082A
Application number: CN202011330521.5A
Authority: CN
Inventors: 谢桂平
Original assignee: Yunnan Zhige Technology Co ltd
Current assignee: Yunnan Zhige Technology Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-03-02

Abstract

The invention belongs to the technical field of lens processing, and particularly relates to a macro-program controlled aspheric surface grinding device and a using method thereof; the grinding machine comprises a base, wherein linear guide rails which are parallel to each other are arranged on the upper surface of the base, two linear guide rails are arranged, Y-axis sliding blocks are arranged on the two linear guide rails, an A-axis rotary table is arranged at the tops of the two Y-axis sliding blocks, an A-axis and C-axis connecting mechanism is rotatably arranged on the A-axis rotary table, a C-axis workbench is rotatably arranged on the A-axis and C-axis connecting mechanism, a workpiece is arranged on the C-axis workbench, an upright post is further arranged at the top of the base, a Z spindle mechanism is arranged at the top end of the upright post, a spindle motor is arranged on the Z spindle; the production effect is higher and the product precision is better.

Description

Aspheric surface grinding device controlled by macro program and use method thereof

Technical Field

The invention belongs to the technical field of lens processing, and particularly relates to a macro-program-controlled aspheric surface grinding device and a using method thereof.

Background

At present, the aspheric lens in domestic market is almost finished by a diamond single-point lathe, and since foreign equipment has decades of experience accumulation in the field, mature systems and equipment exist. But has the disadvantages of expensive equipment, difficult detection of the abrasion of the diamond cutter, non single-point contact of a processing track and the like. Therefore, the problem of inconsistent surface shape precision of mass-produced products exists, and the production efficiency is not very high.

The programming software writes path tracks with 2 errors, one is a design error of a constructed model, the other is a calculation error of a calculated track, and after the two errors are superposed, machining errors are added, so that a workpiece meeting the design requirements is difficult to machine.

Disclosure of Invention

The invention aims to provide a macro-program controlled aspheric surface grinding device and a using method thereof, which have the advantages of higher production effect and better product precision.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides an use macro program control aspheric surface grinding device, the on-line screen storage device comprises a base, the base upper surface is provided with linear guide that is parallel to each other, linear guide is provided with two, be provided with Y axle slider on two linear guide, two Y axle slider tops are provided with A axle revolving stage, it is provided with A axle and C axle coupling mechanism to rotate on the A axle revolving stage, it is provided with C axle workstation to rotate on A axle and the C axle coupling mechanism, be provided with the work piece on the C axle workstation, the base top still is provided with the stand, the stand top is provided with Z spindle mechanism, be provided with spindle motor on the Z spindle mechanism, the spindle motor end is provided with the mill.

Furthermore, the Y-axis sliding block and the A-axis turntable are driven by an external motor, and the external motor and the spindle motor are electrically connected with the controller.

Further, the method comprises the following steps: firstly writing a macro program of an aspheric surface motion trail according to the requirements of a workpiece; and carrying out ultra-precise grinding by adopting an Y, Z, A, C linkage mode.

Further, when programming a macro, the aspherical equation is

Wherein Co 1/Ro Ro, K, A, B, C, D is constant.

Compared with the prior art, the invention has the beneficial effects that: the macro program of the invention directly calculates the motion track, and can reduce the calculation error to the lowest. The real single-point line contact in the whole processing process is ensured. The device adopts workpiece rotation and main shaft rotation, and can obtain high grinding linear velocity, thereby ensuring good surface shape precision and surface roughness.

Drawings

FIG. 1 is a schematic view of the structure of the apparatus of the present invention.

FIG. 2 is a schematic view of an over center point in example 3.

FIG. 3 is a schematic view of the embodiment 3 after the rotation.

FIG. 4 is a schematic diagram 1 of the operation of example 3.

FIG. 5 is a schematic diagram 2 of the operation of example 3.

In the figure, 1-base, 2-linear guide rail, 3-Y slide block, 4-A axis turntable, 5-upright post, 6-Z spindle mechanism, 7-spindle motor, 8-grinding disc, 9-A axis and C axis connecting mechanism, 10-C axis workbench and 11-workpiece.

Detailed Description

As shown in fig. 1 to 5, in order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

A macro-program controlled aspheric surface grinding device comprises a base 1, linear guide rails 2 which are parallel to each other are arranged on the upper surface of the base 1, two linear guide rails 2 are arranged, Y-axis slide blocks 3 are arranged on the two linear guide rails 2, an A-axis turntable 4 is arranged on the tops of the two Y-axis slide blocks 3, an A-axis and C-axis linkage mechanism 9 is arranged on the A-axis turntable 4 in a rotating manner, a C-axis workbench 10 is arranged on the A-axis and C-axis linkage mechanism 9 in a rotating manner, a workpiece 11 is arranged on the C-axis workbench 10, an upright post 5 is further arranged on the top of the base 1, a Z-spindle mechanism 6 is arranged at the top end of the upright post 5, a spindle motor 7 is arranged on the Z-spindle mechanism 6, a grinding disc 8 is arranged at the tail end of the spindle motor 7, the Y-axis slide blocks 3 and the A-axis turntable 4 are driven by an external motor, the calculation error can be minimized. The real single-point line contact in the whole processing process is ensured. The device adopts workpiece rotation and main shaft rotation, and can obtain high grinding linear velocity, thereby ensuring good surface shape precision and surface roughness.

Example 2

The utility model provides an use macro-program control aspheric surface grinding device, including

base

1, 1 upper surface of base is provided with linear guide 2 that is parallel to each other, linear guide 2 is provided with two, be provided with Y axle slider 3 on two

linear guide

2, 3 tops of two Y axle sliders are provided with A axle revolving stage 4, it is provided with A axle and C axle coupling mechanism 9 to rotate on the A axle revolving stage 4, it is provided with C axle workstation 10 to rotate on the A axle and the C axle coupling mechanism 9, be provided with work piece 11 on the C axle workstation 10, base 1 top still is provided with stand 5, stand 5 top is provided with Z spindle mechanism 6, be provided with spindle motor 7 on Z spindle mechanism 6, spindle motor 7 end is provided with mill 8, Y axle slider 3 and A axle revolving stage 4 are driven by external motor, external motor and spindle motor 7 all with controller electric connection, the use method includes the following step:

firstly writing a macro program of an aspheric surface motion trail according to the requirements of a workpiece; the Y, Z, A, C linkage mode is adopted for ultra-precise grinding, and when a macro program is compiled, the non-spherical equation is

Wherein Co 1/Ro Ro, K, A, B, C, D is constant.

The macro program of the invention directly calculates the motion track, and can reduce the calculation error to the lowest. The real single-point line contact in the whole processing process is ensured. The device adopts workpiece rotation and main shaft rotation, and can obtain high grinding linear velocity, thereby ensuring good surface shape precision and surface roughness.

Example 3

This embodiment is illustrated by Ro ═ 124.25, K ═ 1.02823, a ═ 8.50429E-08, B ═ 3.25900E-12, C ═ 2.62052E-16, D ═ 0.00000, and z ═ 5.67428 when r is 37.

Referring to fig. 2-5, the machining can be completed by substituting the above parameters into the system by using the macro program of the numerical control system. The lens product test parameters were as follows: the Pt value is 2 μm, and the Pa value is 10 nm.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. The utility model provides a control aspheric surface grinding device with macro-program which characterized in that: the grinding machine comprises a base (1), linear guide rails (2) which are parallel to each other are arranged on the upper surface of the base (1), two linear guide rails (2) are arranged, Y-axis sliding blocks (3) are arranged on the two linear guide rails (2), an A-axis rotating table (4) is arranged at the tops of the two Y-axis sliding blocks (3), an A-axis and C-axis connecting mechanism (9) is arranged on the A-axis rotating table (4) in a rotating mode, a C-axis workbench (10) is arranged on the A-axis and C-axis connecting mechanism (9) in a rotating mode, a workpiece (11) is arranged on the C-axis workbench (10), an upright post (5) is further arranged at the top of the base (1), a Z spindle mechanism (6) is arranged at the top of the upright post (5), a spindle motor (7) is arranged on the Z spindle.

2. A macro-programming aspheric grinding device as defined in claim 1, characterized in that: the Y-axis sliding block (3) and the A-axis rotating table (4) are driven by an external motor, and the external motor and the spindle motor (7) are electrically connected with the controller.

3. The method for using a macro-programming aspheric grinding device as claimed in claim 1, characterized in that: the method comprises the following steps: firstly writing a macro program of an aspheric surface motion trail according to the requirements of a workpiece; and carrying out ultra-precise grinding by adopting an Y, Z, A, C linkage mode.

4. A macro-programming aspheric grinding device as defined in claim 3, characterized in that: when writing a macro program, the aspherical equation is

Wherein Co 1/Ro Ro, K, A, B, C, D is constant.