KR20140105334A

KR20140105334A - Glass

Info

Publication number: KR20140105334A
Application number: KR1020130019487A
Authority: KR
Inventors: 공석태
Original assignee: 공석태
Priority date: 2013-02-22
Filing date: 2013-02-22
Publication date: 2014-09-01

Abstract

In the conventional cnc milling machine concept, the material to be machined is fixed by vacuum, and the diamond wheel rotates around the workpiece while it is machined. It does not know the proper load that occurs between the workpiece and the spindle rotation. If the work conditions are well matched and the diamond tool is worn over time, if the load condition is changed due to overload, the workpiece will be cracked and the hardened workpiece will often be defective This results in double damages such as not only processing loss but also expensive raw material loss.
As a solution, as shown in the figure, the front and rear transfer spindle with a distance measuring sensor and cushion device and a vacuum plate for fixing the workpiece are attached so that the spindle position is automatically adjusted according to the cushion pressure, A rotary index (Y) that is rotated by a servo motor, a forward and backward feed axis (X) portion that can be traversed forward and backward by a servo motor for forward and backward movement thereof, and a spindle vertical adjustment (Z) Depending on the shape of the workpiece to be machined, the CAM program is used to work with data files that generate X-axis data as the amount of Y-axis rotation increases. If excessive load is applied to the workpiece during operation, To prevent excessive load on the workpiece due to the buffering action of the cushion It is necessary to control the machining speed while checking the sensor value of the cushion distance measuring sensor, so that it is possible to produce a precise product which is processed while automatically measuring the work without causing a crack in the glass as the workpiece.

Description

{GLASS} Computer controlled strain glass grinding machine with measuring device and pressure regulator

Glass processing, glass chamfering, lcd cover glass, glass grinding

In a glass processing method such as a cover glass of a smartphone and a smart pad, a vacuum attachment jig is installed on a CNC milling machine (a carving machine) bed, a glass is attached to a jig in vacuum, and a spindle chuck is equipped with a diamond wheel instead of an end mill, However, if the glass cutting load is varied depending on the state of the diamond wheel or the speed of the diamond wheel, if there is an overload, a large number of defects due to the occurrence of the crack occur

In the conventional cnc milling machine concept, the material to be machined is fixed by vacuum, and the diamond wheel rotates around the workpiece while it is machined. It does not know the proper load that occurs between the workpiece and the spindle rotation. If the work conditions are well matched and the diamond tool is worn over time, if the load condition is changed due to overload, the workpiece will be cracked and the hardened workpiece will often be defective This results in double damages such as not only processing loss but also expensive raw material loss.

Therefore, it is desired to make a glass grinding machine equipped with an automatic control part according to the load ratio of the spindle and workpiece during processing, so that a precise product can be processed without causing cracks.

As a workaround, the spindle position is automatically adjusted according to the machining load during machining so that the cushion pressure adjusting device can be adjusted. As shown in the figure, the cushion distance measuring sensor and the cushion device are attached to the front and rear transfer spindle, A rotary index (Y) that is rotated by a servo motor, a forward and backward feed axis (X) portion that can be traversed forward and backward by a servo motor for forward and backward movement thereof, and a spindle vertical adjustment (Z) If you use the CAM program, which is a job data generation program according to the shape of the workpiece you want to process, you will work with the data file that generated the X axis data as the amount of Y axis rotation increases. To prevent the excessive load on the workpiece due to the buffering action by the forward and backward movement of the cushion part, It is intended to make a fine workpiece, automatically measured so as to adjust the feed rate, ensuring that the cushion distance measuring sensor attached to the value close to the cushion unit and at the same time work without a crack in the glass workpiece occurs.

If excessive load is applied to the workpiece during work, excessive load on the workpiece is prevented due to the buffering action by the transferring before and after the cushion part. Cushion distance is measured by checking the sensor value of the cushion distance, It is possible to make a precise product that is processed while automatic measurement while working.

A) Floor plan
B) Front view

(A) and the front view (B) of the drawing so that the spindle position is automatically adjusted by the cushion pressure adjusting device according to the machining load at the time of machining. A rotary index (Y) rotated by a servomotor with a vacuum plate for fixing the workpiece, a front and rear feed spindle with a measuring sensor and a cushion device, and a front and rear pylons (X), and a controller for controlling the controller. The controller generates X-axis data according to an increase in the amount of Y-axis rotation using a CAM program, which is a work data generating program, according to the shape of the workpiece If you are working with data files and you are overloading the work during the work, To prevent excessive load, the controller controls the machining speed while checking the sensor value of the cushion distance measurement sensor attached to the periphery of the cushion part. To make it

As shown in the drawing, the cushioning buffering action can be controlled by air pressure using an air cylinder or the like, although a spring may be used.

It is possible to use only one diamond wheel. If necessary, it is possible to make a precise product in a shorter time by finishing with a roughing wheel first and then finishing with a second finishing wheel ..

A method of fixing the glass by using only the vacuum plate 3-1 and a method of fixing the glass further include a method in which the center rotary plate 3-5 is additionally attached to the rotary index motor 3 using the center rotary plate support 3-2 (3-3) Press the center rotary plate (3-5) with the pressure of the upper and lower cylinders (3-3) to fix the glass. 3-1. Put several glass between the vacuum plate (3-1) and the center rotary plate Respectively.

1. Body
2. Front and rear pylons that are transported to the motor X
2-1. Motor
2-2. Transfer Bed
3. Rotary index motor
3-1. Vacuum plate
3-2. Center spindle support
3-3 Upper and Lower Cylinder for Glass Fixing
3-4. Center spindle bearing
3-5. Center Spindle
5. Send spindle cushion
5-1. Spindle motor
5-2. Diamond roughing wheel
5-3. Diamond Finishing Wheel
5-4. Cushion spring
5-5. Cushion pressure adjustment screw
5-6. Cushion Pressure Adjustment Handle
5-7. Cushion Transport Guide
6. Send the spindle to Shanghai
6-1. Spindle shank screw
6-2. Servo Motor
7. Controller
8. Cushion distance measuring sensor
9. Workpiece

Claims

In a glass processing machine, a spindle up and down adjustment (Z) unit for automatically adjusting a spindle position by a cushion pressure adjusting device in accordance with a machining load in grinding processing is provided with a front-rear feed spindle unit And a rotary index (Y) that is rotated by a servo motor having a vacuum plate for fixing a workpiece, and a front and rear pivot axis (X) portion that can be moved forward and backward by a servo motor for forward and backward movement thereof. The controller unit uses the CAM program, which is a job data generation program, to work with the data file that generated X-axis data as the Y-axis rotation amount increases according to the shape of the workpiece to be processed. If an excessive load is applied, it will automatically prevent the excessive load on the workpiece due to buffering action by the feed back and forth of the cushion part And lock controller, a glass grinding machine so as to adjust the feed rate, ensuring that the cushion distance measuring sensor attached to the value close to the cushion unit.

In the method of fixing the glass in the above item, the center rotary plate 3-5 is additionally attached to the rotary indexing motor 3 using the center rotary plate support 3-2, 3) A glass grinding machine in which several glass can be simultaneously attached between the vacuum plate (3-1) and the center rotary plate (3-5) by pressing the center rotary plate (3-5) under pressure.