CN212859944U

CN212859944U - System for processing and forming glass hot bending die

Info

Publication number: CN212859944U
Application number: CN202020101714.2U
Authority: CN
Inventors: 熊贤玉
Original assignee: Dongguan Shanshi Ultrasonic Technology Co ltd
Current assignee: Hunan Hamer Intelligent Equipment Co ltd
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2021-04-02
Anticipated expiration: 2030-01-16

Abstract

The utility model discloses a glass hot-bending die machine-shaping's system sets up the machine tool of taking the rotating spindle, and fixes cutting tool on the rotating spindle, and sets up the supersonic generator on the machine tool, uses the rotating spindle to drive the cutting tool rotation, makes on the high-frequency vibration that the ultrasonic wave inverse piezoelectric effect produced transmits the cutting tool of rotating spindle to make cutting tool possess vibration and rotatory superimposed two-way cutting force, the utility model discloses a set up the ultrasonic wave amplitude and make cutting tool can lift away from the work piece contact surface in the processing clearance, the radiating effect obtains optimizing, and ultrasonic wave high-frequency vibration improves processing line speed, promotes machining efficiency, can also atomize surface tool mark in the ultrasonic wave conduction, possess high-quality surface quality then.

Description

System for processing and forming glass hot bending die

Technical Field

The utility model relates to a mould processing mode especially relates to a system of machine-shaping on 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 graphite special processing machine is used for processing curved surfaces and arc lines, in order to obtain good curved surface precision and surface quality, a graphite special spherical cutter is generally used, the cutting depth (Ap) is 0.04mm, the cutting step distance (Ae) is 0.035mm, and the central processing linear velocity of the spherical cutter is zero, so that the graphite special processing machine is easy to wear and can not avoid the generation of surface linear drag marks, and the subsequent polishing efficiency and quality are seriously influenced. 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.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a system of machine-shaping on glass hot-bending die, solve glass hot-bending die machining efficiency low, the machining precision is low, machined part surface effect is poor, the cutting means wearing and tearing are fast, problem that manufacturing cost is high.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a glass hot bending die machine-shaping's system sets up the machine tool of taking the rotation main shaft and fixes the cutting tool on the rotation main shaft and set up the supersonic generator on the machine tool, uses the rotation main shaft to drive the cutting tool rotation, makes the high-frequency vibration that the reverse piezoelectricity effect of ultrasonic wave produced transmit the cutting tool of rotation main shaft on to make the cutting tool possess vibration and rotatory superimposed two-way cutting force, concrete processing system step is as follows:

firstly, fixing a workpiece to be processed on a workbench of the machine tool with the ultrasonic generator;

adjusting the rotation speed of the rotating main shaft, 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 to be machined;

thirdly, starting the ultrasonic generator, setting the vibration frequency and the vibration direction of the ultrasonic generator, and adjusting to the required value matched with the workpiece to be processed;

and fourthly, moving the rotating main shaft to enable the cutting tool to move to the position to be machined of the workpiece to be machined, aligning the part to be machined, and cutting the workpiece to be machined until the machining 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 transformer.

The utility model has the advantages 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 present invention will be described in more detail with reference to the accompanying 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 system for processing and molding a glass hot bending mold is provided with a processing machine 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, wherein the rotating main shaft 1 is used for driving the cutting tool 5 to rotate, so that high-frequency vibration generated by the 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 system comprises the following steps:

firstly, fixing a workpiece 6 to be processed on a workbench of a machine tool provided with an ultrasonic generator 2;

adjusting the processing parameters such as the rotating speed of the rotating main shaft 1, the processing feed rate, the cutting step pitch and the like, and the distance between the cutting tool and the processing surface to respectively adjust the processing parameters to the required values matched with the workpiece 6 to be processed;

thirdly, 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;

and fourthly, moving the rotating main shaft 1 to enable the cutting tool 5 to move to the position to be processed of the workpiece to be processed 6, aligning the part to be cut, and cutting the workpiece to be processed until the processing of the preset shape is finished.

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 transformer 4.

The specific embodiments described in this specification are provided for the purpose of explanation only and are not intended to limit the scope of the present invention.

Claims

1. A glass hot bending die processing and forming system 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 bidirectional cutting force with vibration and rotation superposed.

2. The system for forming a glass hot-bending mold according to claim 1, wherein: 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 system for forming a glass hot-bending mold according to claim 1, wherein: 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 system for forming a glass hot-bending mold according to claim 1, wherein: 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 system 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 transformer (4).