CN111070420A - A kind of glass hot bending mould processing method - Google Patents
A kind of glass hot bending mould processing method Download PDFInfo
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- CN111070420A CN111070420A CN202010048444.8A CN202010048444A CN111070420A CN 111070420 A CN111070420 A CN 111070420A CN 202010048444 A CN202010048444 A CN 202010048444A CN 111070420 A CN111070420 A CN 111070420A
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- vibration
- main shaft
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- cutting tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/003—Multipurpose machines; Equipment therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
- B24B1/04—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention discloses a method for processing and forming a glass hot bending die, which comprises a processing machine tool with a rotary main shaft, a cutting tool fixed on the rotary main shaft and an ultrasonic generator arranged on the processing machine tool, wherein the rotary main shaft is used for driving the cutting tool to rotate, so that high-frequency vibration generated by the inverse piezoelectric effect of ultrasonic waves is transmitted to the cutting tool of the rotary main shaft, and the cutting tool has bidirectional cutting force of vibration and rotation superposition.
Description
Technical Field
The invention relates to a mould processing mode, in particular to a method for processing and forming a glass hot bending mould.
Background
At present, in the glass hot bending mould processing industry, most superhard materials cannot be efficiently processed and formed, and the use accurate size cannot be achieved. Particularly, the graphite and silicon carbide composite material is used for processing a glass hot bending die, the silicon carbide has the physical properties of corrosion resistance, high temperature resistance, high strength, high hardness, good heat conduction and thermal stability, is widely applied to industry, and the high-purity monocrystalline silicon is particularly used for semiconductor and aviation industry. Because the hardness of the silicon carbide is as high as Mohs 9.2-9.5 degrees, the silicon carbide is also a raw material of a good abrasive, but the silicon carbide is very difficult to process when a glass hot bending die is manufactured. In the application of the silicon carbide material, the silicon carbide material is preformed before sintering based on the processing difficulty, but the shrinkage rate and deformation cannot be accurately controlled. The only processing means is to grind some planes by a grinder. If other cavities or curved surfaces are to be machined, the consumed machining time and the consumed materials are very high. Graphite as another material is used as a medium for electric discharge machining, profiling machining is needed, the formed curved surfaces are many and complex, and the graphite is used as a mold for hot bending forming of curved-surface glass in the modern smart phone industry. When a conventional special graphite processing machine is used for processing curved surfaces and arc lines, in order to obtain good curved surface precision and surface quality, a special spherical cutter for graphite is generally used, the cutting depth (Ap) is 0.04mm, the cutting step distance (Ae) is 0.035mm, and the central processing linear speed of the spherical cutter is zero, so that the special processing machine is easy to wear, can not avoid the generation of surface linear dragging marks, and seriously influences the subsequent polishing efficiency and quality. Moreover, the graphite is composed of pure carbon elements, the carbon elements are worn too fast by using a traditional machining means, so that the cutter and the grinding rod are invalid, the machining precision is controlled badly after the cutter and the grinding rod are worn, the cutter does not have cutting force after being worn, the cutting load of a machine tool is increased, and even the cutter is pricked to cause the breakage and the scrapping of a machined workpiece. And frequent replacement of the machining tool increases machining time and machining cost.
Disclosure of Invention
The invention aims to provide a method for processing and forming on a glass hot bending die, which solves the problems of low processing efficiency, low processing precision, poor surface effect of a processed part, quick abrasion of a cutting tool and high production cost of the glass hot bending die.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for processing and forming a glass hot bending die is provided with a processing machine tool with a rotating main shaft, a cutting tool fixed on the rotating main shaft and an ultrasonic generator arranged on the processing machine tool, wherein the rotating main shaft is used for driving the cutting tool to rotate, so that high-frequency vibration generated by the reverse piezoelectric effect of the ultrasonic wave is transmitted to the cutting tool of the rotating main shaft, and the cutting tool has bidirectional cutting force with vibration and rotation superposed, and the specific processing method comprises the following steps:
① fixing the workpiece to be processed on the workbench of the ultrasonic generator machine tool;
② adjusting the rotation speed of the rotary spindle, the machining feed rate, the cutting step pitch and other machining parameters, and the distance between the cutting tool and the machining surface to the required values matched with the workpiece to be machined;
③ starting the ultrasonic generator, setting the vibration frequency and vibration direction of the ultrasonic generator, and adjusting to the required value matched with the workpiece to be processed;
④ the rotary main shaft is moved to make the cutting tool move to the position to be processed of the workpiece to be processed, and the part to be cut is aligned to cut the workpiece to be processed until the processing of the preset shape is completed.
Further, the cutting tool includes a milling cutter, a drill, a tap, a grinding rod, a grinding wheel, and the like having cutting ability to be applied to a work surface.
Furthermore, a piezoelectric ceramic and an amplitude transformer are arranged between the ultrasonic generator and the main shaft.
Further, the ultrasonic generator generates high-frequency vibration under the ultrasonic inverse piezoelectric effect so as to generate mechanical energy, and the vibration direction of the mechanical energy includes vibration modes such as longitudinal vibration, transverse vibration and torsional vibration. The ultrasonic inverse piezoelectric effect generates high-frequency vibration energy by changing the assembly mode of the piezoelectric ceramics and the position and the direction of the amplitude rod.
The invention has the beneficial effects that: make cutting tool can the clearance lift away from the work piece contact surface in the processing through setting up the ultrasonic wave amplitude, the radiating effect obtains optimizing, and ultrasonic wave high frequency vibration improves processing linear speed, promotes machining efficiency, can also atomize the surface tool mark in the ultrasonic wave conduction, possess high-quality surface quality then. The service life of the grinding rod is about 4 times of that of a graphite special cutter, the production process requirement of the grinding rod is low, the grinding rod is cheap to obtain, and the overall production cost is greatly reduced. The processing stability, high accuracy and high safety of the glass hot bending die are ensured, and workpieces and materials which are difficult to process by a common machine tool can be easily processed, so that the processing quality is improved, and the processing efficiency is also improved.
The invention will be explained in more detail below with reference to the drawings and examples.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
In the embodiment, as shown in fig. 1, a method for processing and molding a glass hot bending mold is provided with a processing machine tool with a rotating main shaft 1, a cutting tool 5 fixed on the rotating main shaft 1, and an ultrasonic generator 2 arranged on the processing machine tool, wherein the rotating main shaft 1 is used for driving the cutting tool 5 to rotate, so that high-frequency vibration generated by an ultrasonic inverse piezoelectric effect is transmitted to the cutting tool of the rotating main shaft, and the cutting tool 5 has a bidirectional cutting force with vibration and rotation superposed, and the specific processing method comprises the following steps:
① fixing the workpiece 6 to be processed on the workbench of the machine tool equipped with the ultrasonic generator 2;
② adjusting the rotation speed of the main shaft 1, the machining feed rate, the cutting step distance and other machining parameters, and the distance between the cutting tool and the machining surface to the required values matched with the workpiece 6 to be machined;
③ starting the ultrasonic generator 2, setting the vibration frequency and the vibration direction of the ultrasonic generator 2, and adjusting to the required value matched with the workpiece 6 to be processed;
④ the rotary main shaft 1 is moved to move the cutting tool 5 to the position to be machined of the workpiece to be machined 6 and to align the part to be cut and cut the workpiece to finish the machining of the predetermined shape.
The cutting tool 5 includes a milling cutter, a drill, a tap, a grinding rod, a grinding wheel and other tools having cutting ability acting on the machining surface, and the tools having corresponding cutting ability are selected for different machining surfaces.
The ultrasonic generator 2 generates high-frequency vibration under the ultrasonic inverse piezoelectric effect so as to generate mechanical energy, and the vibration direction of the mechanical energy comprises vibration modes such as longitudinal vibration, transverse vibration, torsional vibration and the like. The ultrasonic inverse piezoelectric effect generates high-frequency vibration energy by changing the assembly mode of the piezoelectric ceramics 3 and the position and the direction of the amplitude rod 4.
The specific embodiments described in this specification are only for the purpose of explaining the present invention and do not limit the scope of the present invention.
Claims (5)
1. A method for processing and forming a glass hot bending die is provided with a processing machine tool with a rotating main shaft (1) and a cutting tool (5) fixed on the rotating main shaft (1), and is characterized in that the processing machine tool is also provided with an ultrasonic generator (2), the rotating main shaft (1) is used for driving the cutting tool (5) to rotate, and high-frequency vibration generated by the ultrasonic inverse piezoelectric effect is transmitted to the cutting tool of the rotating main shaft, so that the cutting tool (5) has a bidirectional cutting force with vibration and rotation superposed, and the specific processing method comprises the following steps:
① fixing the workpiece (6) to be processed on the workbench of the machine tool provided with the ultrasonic generator (2);
② adjusting the rotation speed of the rotating main shaft (1), the processing feed rate, the cutting step distance and other processing parameters, and the distance between the cutting tool and the processing surface to the required values matched with the workpiece (6) to be processed respectively;
③ starting the ultrasonic generator (2), setting the vibration frequency and the vibration direction of the ultrasonic generator (2), and adjusting to the required value matched with the workpiece (6) to be processed;
④ the rotary main shaft (1) is moved, the cutting tool (5) is moved to the position to be processed of the workpiece to be processed (6), the position to be cut is aligned, and the workpiece to be processed is cut until the processing of the preset shape is completed.
2. The method of claim 1, wherein the step of forming the glass hot-bending mold comprises: the cutting tool (5) comprises a milling cutter, a drill, a screw tap, a grinding rod, a grinding wheel and the like which have cutting capacity and act on the processed surface.
3. The method of claim 1, wherein the step of forming the glass hot-bending mold comprises: and a piezoelectric ceramic (3) and an amplitude transformer (4) are also arranged between the ultrasonic generator (2) and the main shaft (1).
4. The method of claim 1, wherein the step of forming the glass hot-bending mold comprises: the ultrasonic generator (2) generates high-frequency vibration under the ultrasonic inverse piezoelectric effect so as to generate mechanical energy, and the vibration direction of the mechanical energy comprises vibration modes such as longitudinal vibration, transverse vibration, torsional vibration and the like.
5. The method for forming a glass hot-bending mold according to claim 3, wherein: the ultrasonic inverse piezoelectric effect generates high-frequency vibration energy by changing the assembly mode of the piezoelectric ceramics (3) and the position and the direction of the amplitude rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010048444.8A CN111070420A (en) | 2020-01-16 | 2020-01-16 | A kind of glass hot bending mould processing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010048444.8A CN111070420A (en) | 2020-01-16 | 2020-01-16 | A kind of glass hot bending mould processing method |
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| Publication Number | Publication Date |
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| CN111070420A true CN111070420A (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010048444.8A Pending CN111070420A (en) | 2020-01-16 | 2020-01-16 | A kind of glass hot bending mould processing method |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014836A (en) * | 2014-05-30 | 2014-09-03 | 东北大学 | Longitudinal-torsion composite ultrasonic vibration cutting device |
| CN104647147A (en) * | 2013-11-25 | 2015-05-27 | 大连康赛谱科技发展有限公司 | A carbon fiber composite material rotary ultrasonic milling processing device and method |
| CN204600758U (en) * | 2015-01-13 | 2015-09-02 | 佛山市诺威科技有限公司 | A kind of zirconia ceramics corona ultrasonic wave added process tool and device |
| CN106001611A (en) * | 2016-06-21 | 2016-10-12 | 北京航空航天大学 | Precise high-speed intermittent ultrasonic vibration cutting method |
| CN107253063A (en) * | 2017-07-25 | 2017-10-17 | 普莱斯（北京）科技有限公司 | A kind of efficient ultrasonic processing unit (plant) |
| CN109571111A (en) * | 2018-10-23 | 2019-04-05 | 北京航空航天大学 | Ultrasonic vibration workbench and processing technology |
| CN109894684A (en) * | 2019-04-02 | 2019-06-18 | 大连交通大学 | A kind of ultrasonic wave added cutting vibration system |
| CN212859944U (en) * | 2020-01-16 | 2021-04-02 | 东莞市山石超声波科技有限公司 | System for processing and forming glass hot bending die |
-
2020
- 2020-01-16 CN CN202010048444.8A patent/CN111070420A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104647147A (en) * | 2013-11-25 | 2015-05-27 | 大连康赛谱科技发展有限公司 | A carbon fiber composite material rotary ultrasonic milling processing device and method |
| CN104014836A (en) * | 2014-05-30 | 2014-09-03 | 东北大学 | Longitudinal-torsion composite ultrasonic vibration cutting device |
| CN204600758U (en) * | 2015-01-13 | 2015-09-02 | 佛山市诺威科技有限公司 | A kind of zirconia ceramics corona ultrasonic wave added process tool and device |
| CN106001611A (en) * | 2016-06-21 | 2016-10-12 | 北京航空航天大学 | Precise high-speed intermittent ultrasonic vibration cutting method |
| CN107253063A (en) * | 2017-07-25 | 2017-10-17 | 普莱斯（北京）科技有限公司 | A kind of efficient ultrasonic processing unit (plant) |
| CN109571111A (en) * | 2018-10-23 | 2019-04-05 | 北京航空航天大学 | Ultrasonic vibration workbench and processing technology |
| CN109894684A (en) * | 2019-04-02 | 2019-06-18 | 大连交通大学 | A kind of ultrasonic wave added cutting vibration system |
| CN212859944U (en) * | 2020-01-16 | 2021-04-02 | 东莞市山石超声波科技有限公司 | System for processing and forming glass hot bending die |
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Effective date of registration: 20220531 Address after: 425000 digital intelligent manufacturing industrial town, Daoxian Industrial Park, Yongzhou City, Hunan Province Applicant after: Hunan Hamer Intelligent Equipment Co.,Ltd. Address before: 523000 Room 101, building 1, No.2 Industrial Park, Beiyuan street, Xiaobian community, Chang'an Town, Dongguan City, Guangdong Province Applicant before: Dongguan Shanshi Ultrasonic Technology Co.,Ltd. |
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Application publication date: 20200428 |