CN103819080A

CN103819080A - Glass drilling method

Info

Publication number: CN103819080A
Application number: CN201210460165.8A
Authority: CN
Inventors: 宋京新; 蔡元沛; 余仙民; 李发杭; 宾恩华
Original assignee: JIANGSU CHUNGE PHOTOELECTRIC GLASS TECHNOLOGY Co Ltd
Current assignee: Jiangsu Ge Ge Glass Co., Ltd.
Priority date: 2012-11-16
Filing date: 2012-11-16
Publication date: 2014-05-28
Anticipated expiration: 2032-11-16
Also published as: CN103819080B

Abstract

A glass drilling method relates to a glass processing method. The glass drilling method comprises the following steps: 1) selecting a subdrilling drill bit, of which the diameter is smaller than that of a post-drilling drill bit; 2) enabling the cutting edge of the post-drilling drill bit to form an angle so as to ensure that the inside diameter is higher and the outside diameter is lower and the inside diameter of the cutting edge is in contact with glass firstly; 3) enabling the drilling depth of the subdrilling drill bit to be slightly greater than the maximum width required by a broken edge; 4) enabling the drilling depth of the post-drilling drill bit to be equal o the thickness of the glass. A junction of the subdrilling drill bit and the post-drilling drill bit is smaller than a required bore diameter, namely machining allowance is reserved for boring, and a bore wall is machined only by the post-drilling drill bit, so that many problems caused by transfer of the two drill bits are eliminated and uniformity and smoothness of the bore wall are ensured.

Description

Glass drilling working method

Technical field:

The present invention relates to glass processing method, be specifically related to a kind of glass drilling working method.

Background technology:

Glass belongs to crisp and hard material, conventionally adopts diamond head and the water coolant that presses is holed.One method is: take single the unidirectional boring of drill bit, drill bit in drilling process, the continuous attenuate of thickness of glass under cutting edge, under the impulse action that the drilling pressure applying at cutting edge and water coolant apply, when glass thin is to a certain extent time, produce bursting apart property and run through, cause the larger limit that collapses.Another kind of improved method is: take the successively boring in opposite directions of two drill bits, the drill bit of subdrilling completes the more than half of thickness, the drill bit of rear brill is drilling after glass, continue to move ahead a bit of, repair the limit that collapses of switching phase, this method runs through bursting apart property the middle part of having transferred to thickness of glass direction, has effectively evaded the problem that limit produces at end face that collapses.Adopt this improving one's methods, still cannot avoid collapsing the problem that limit is developed from hole wall to inside glass at intersection.And, be subject to the impact that the abrasion of the precision of the deviation of beating of drilling machine assembly precision and two main shafts, two bit diameters and the deviation of beating, drill bit cause the factors such as diameter dimension deviation, cause handing-over mouthful dislocation, be in fact difficult to obtain uniform and smooth hole wall, affect the precision in hole and attractive in appearance.

Summary of the invention:

The object of this invention is to provide glass drilling working method, its technique is simple, and the rear glass end face of processing and hole wall are without collapsing limit, and hole wall is uniform and smooth,

In order to solve the existing problem of background technology, the present invention adopts following procedure of processing:

1) drill bit of selection subdrilling, makes the bit diameter of subdrilling be less than the bit diameter of rear brill;

2) the drill bit cutting edge boring after is an angle, makes the high external diameter of internal diameter low, guarantees that cutting edge internal diameter first contacts glass;

3) the bit bore degree of depth of subdrilling is slightly larger than and collapses the maximum width that limit requires;

4) the bit bore degree of depth of boring after equals thickness of glass.

Diameter-the collapse limit maximum width requirement in the internal diameter < subdrilling bit diameter≤hole of drill bit after in described procedure of processing 1, in the time collapsing hem width degree and be greater than bit wall thickness, selects wall thickness value.

Described subdrilling bit diameter is less than rear drill bit diameter, and the annular groove external diameter of processing is less than the aperture of require processing, formed one after drill bit collapse the partition grooves on limit while drilling.

Described first drill bit and rear drill bit junction are less than the aperture of require processing, leave process redundancy and implement Boring, and hole wall processing is completed by one of rear drill bit.

In described step 2 after bore drill bit cutting edge be axially 45～60 ° of angles, rear drill bit first drills glass by internal diameter, now, water coolant surging force is discharged, like this by reduce external diameter not yet complete the pressure of processing part, reduce to collapse hem width degree.

The present invention adopts first drill bit and rear drill bit junction to be less than the aperture of require processing, leave process redundancy and implement Boring, hole wall processing is completed by one of rear drill bit, join thereby eliminated two drill bits the problems of bringing, guaranteed the uniform and smooth of hole wall.

Accompanying drawing explanation:

Fig. 1 is the structural representation of the embodiment of the present invention.

Embodiment:

Referring to Fig. 1, this embodiment adopts following procedure of processing: 1) select the drill bit of subdrilling, make the bit diameter of subdrilling be less than the bit diameter of rear brill; 2) the drill bit cutting edge boring after is an angle, makes the high external diameter of internal diameter low, guarantees that cutting edge internal diameter first contacts glass; 3) the bit bore degree of depth of subdrilling is slightly larger than and collapses the maximum width that limit requires; 4) the bit bore degree of depth of boring after equals thickness of glass.

This embodiment adopts first drill bit and rear drill bit junction to be less than the aperture of require processing, leave process redundancy and implement Boring, hole wall processing is completed by one of rear drill bit, join thereby eliminated two drill bits the problems of bringing, guaranteed the uniform and smooth of hole wall.

Embodiment 1: solar film plating battery glass drilling method

Solar film plating battery glass, thickness 3.2mm, aperture 20mm, due to needs tempering, need to be by 0.5 × 45 ° of drill end surface chamfer to eliminate stress, the glass explosion of avoiding stress in toughening process to concentrate reason to bring, therefore boring is collapsed hem width degree maximum and must not be exceeded 0.5mm, otherwise chamfering cannot be eliminated and collapses to the greatest extent limit.

The vertical drilling machine that adopts glass horizontal to place, 2100 revs/min of rotating speeds, drill speed 0.8mm/ second, inner-cooled Cooling Water.Select subdrilling bit diameter: 20-0.5=19.5mm; Rear drill bit diameter 20mm, 60 ° of blade angles, bit wall thickness is 1mm.

Working method is: reset → punched with first drill bit (lower bore) punching (maximum that the degree of depth is greater than 0.5mm collapses hem width degree, is decided to be 0.6mm) → lower resets → rear drill bit (upper boring) punching (stroke 3.2+0.1=3.3mm) → upper brill that bores.

Referring to Fig. 1, in the time that upper brill internal diameter drills glass, hydraulic pressure discharges, and upper drill lip mouth outer radius is 1.177mm from glass lower surface distance, still has enough thickness, can not collapse limit.Afterwards, what upper brill was implemented is bore hole effect, and process redundancy is 0.25mm, and whole hole wall is completed by upper brill, the vestige that hole wall brings without handing-over, and hole wall is uniform and smooth, the actual limit < 0.25mm that collapses.

Claims

1. glass drilling working method, is characterized in that adopting following procedure of processing:

3) the bit bore degree of depth of subdrilling: be slightly larger than and collapse the maximum width that limit requires;

4) the bit bore degree of depth of boring after equals thickness of glass.

2. glass drilling working method according to claim 1, the diameter in the internal diameter < subdrilling bit diameter≤hole of drill bit after it is characterized in that in described procedure of processing 1-collapse limit maximum width requirement, in the time collapsing hem width degree and be greater than bit wall thickness, select wall thickness value.

3. glass drilling working method according to claim 1, is characterized in that described subdrilling bit diameter is less than rear drill bit diameter, and the annular groove external diameter of processing is less than the aperture that processes of requires, formed one after drill bit collapse the partition grooves on limit while drilling.

4. glass drilling working method according to claim 1, is characterized in that described first drill bit and rear drill bit junction are less than the aperture of require processing, leaves process redundancy and implements Boring, and hole wall processing is completed by one of rear drill bit.

5. glass drilling working method according to claim 1, is characterized in that the drill bit cutting edge of rear brill in described step 2 and is axially 45～60 ° of angles.