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CN-116900918-B - Polishing barrel mechanism for curved glass and polishing method thereof

CN116900918BCN 116900918 BCN116900918 BCN 116900918BCN-116900918-B

Abstract

The invention relates to a polishing barrel mechanism for curved glass, which comprises a barrel body and electromagnetic units, wherein a plurality of electromagnetic units are arranged on the outer wall of the barrel body, magnetorheological polishing liquid is further filled in the barrel body, a curved glass piece is placed in the barrel body and fixed by an adsorption tool, the adsorption tool is provided with a magnetic conduction back plate, when the curved glass piece is placed in the barrel body, the magnetic conduction back plate of the adsorption tool is close to the wall of the barrel body, the front surface of the adsorption tool, which is fixed with the curved glass piece, faces the center of the barrel body, when the polishing mechanism polishes a certain part of the curved glass piece, the electromagnetic units at corresponding positions are started, and the magnetic conduction back plate has magnetism, so that a large amount of magnetic polishing materials in the magnetorheological polishing liquid are adsorbed at polishing positions. A polishing method of the polishing barrel is also disclosed. The polishing device has the beneficial effects of good polishing effect and high polishing efficiency.

Inventors

  • ZHOU DEHE
  • Wei Diaowei
  • ZHONG JIANHUI
  • YANG JUN
  • WANG DAN

Assignees

  • 四川蒙马智能装备有限公司

Dates

Publication Date
20260505
Application Date
20230523

Claims (7)

  1. 1. A polishing barrel mechanism for curved glass is characterized by comprising a barrel body (21) and an electromagnetic unit (22); The outer wall of the barrel body (21) is provided with a plurality of electromagnetic units (22), and magnetorheological polishing liquid is also filled in the barrel body (21); The barrel body (21) is internally provided with a curved glass piece, and the curved glass piece is fixed by an adsorption tool (10), wherein the adsorption tool (10) is provided with a magnetic conduction backboard (5); When the curved glass piece is placed in the barrel body (21), the magnetic conduction backboard (5) of the adsorption tool (10) is close to the wall of the barrel body (21), and the front surface of the adsorption tool (10) fixed with the curved glass piece faces the center of the barrel body (21); When the polishing mechanism polishes a certain part of the curved glass piece, an electromagnetic unit (22) at a corresponding position is started, and the electromagnetic unit (22) enables the magnetic conduction backboard to have magnetism, so that a large amount of magnetic polishing materials in the magnetorheological polishing liquid are adsorbed at the polishing position; when the adsorption tool (10) is used for fixing curved glass pieces, a plurality of curved glass pieces are vertically hoisted along the circumferential direction of a circle, a plurality of rows of electromagnetic units (22) are arranged at the outer wall of the barrel body (21), and each row of electromagnetic units (22) corresponds to one curved glass piece; The adsorption tool (10) comprises a bearing assembly (1), the bearing assembly (1) comprises a magnetic conduction backboard (5), a non-magnetic conduction profiling piece (6) and a magnetic conduction profiling block (7), the non-magnetic conduction profiling piece (6) is fixedly locked on the front surface of the magnetic conduction backboard (5), the front surface of the non-magnetic conduction profiling piece (6) is a profiling surface which is fit with a curved glass piece in a fitting mode, a through hole groove is formed in the position, corresponding to the curved surface of the curved glass piece, of the non-magnetic conduction profiling piece (6), the magnetic conduction profiling block (7) is placed in the through hole groove, the magnetic conduction profiling block (7) is also locked and fixed on the magnetic conduction backboard (5), the front surface of the magnetic conduction profiling block (7) is a profiling surface which is fit with the curved surface of the curved glass piece, and when a corresponding electromagnetic unit (22) is started, the magnetic field at the curved surface of the curved glass piece is larger than the magnetic fields at other positions.
  2. 2. A polishing barrel mechanism for curved glass according to claim 1, wherein said barrel body (21) has a polygonal barrel shape; the barrel body (21) is provided with a row of electromagnetic units (22) at the outer wall of each prismatic wall, and a curved glass piece is correspondingly arranged at the inner wall of each prismatic wall.
  3. 3. A polishing barrel mechanism for curved glass according to claim 2, wherein a plurality of annular strips (23) are sleeved on the outer wall of the barrel body (21) from top to bottom, and the electromagnetic units (22) are fixed on the corresponding annular strips (23).
  4. 4. The polishing barrel mechanism for curved glass according to claim 1, wherein the walls of the barrel body (21) are further recessed inward into triangular grooves at positions corresponding to both sides of the curved glass workpiece; The outer wall of the triangular groove is provided with a plurality of ultrasonic vibrators (24); when the polishing mechanism polishes, the polishing material is removed through the ultrasonic vibrator (24).
  5. 5. A polishing barrel mechanism for curved glass according to claim 1, wherein the inner bottom of said barrel body (21) is further provided with a heating pipe (25).
  6. 6. The polishing barrel mechanism for curved glass according to claim 1, wherein the front surface of the non-magnetic conductive profiling piece (6) is also provided with a plurality of pneumatic sucking discs; When the pneumatic sucker is arranged on the front surface of the non-magnetic-conductive profiling piece, a fixing rod of the pneumatic sucker is firstly arranged, then a flexible layer is attached to the front surface of the non-magnetic-conductive profiling piece (6), and a rubber disc of the pneumatic sucker is arranged; when the pneumatic sucker is vacuumized and adsorbed, the rubber disc can adsorb the curved glass piece and retract, so that the curved glass piece is fully attached to the flexible layer, and the adsorbed surface of the curved glass piece is not converged with the magnetorheological polishing material.
  7. 7. A polishing method of a polishing barrel mechanism for curved glass is characterized in that: a. Conventional surface treatment; controlling the polishing barrel III to be electrified at an electromagnetic unit (22) at a certain height, and gathering a large amount of magnetically conductive polishing materials on a curved glass piece at the height position; The gathered polishing material can corrode the curved glass piece to carry out chemical polishing, and the temperature condition of chemical corrosion is controlled by a heating pipe (25) during the chemical treatment; The aggregated magnetic conduction polishing material grinds the curved glass piece under the extrusion action of the polishing mechanism, and each adjacent polishing ball rotates along different directions during the physical treatment; During physical treatment, the polishing mechanism slightly shakes, the contact gap between the polishing ball and the curved glass piece changes, and the ground material and the polishing material at the original gap can fall off and be thrown out under the action of the ultrasonic vibrator (24) and the polishing ball; the electromagnetic units (22) with different heights are controlled to be electrified gradually, so that curved glass parts with corresponding heights are polished intensively; b. Unconventional surface treatment; When the corresponding electromagnetic unit (22) is electrified at the curved surface part of the curved surface glass piece, the existence of the magnetic conduction profiling block (7) enables the surface of the curved surface part to be more concentrated with polishing materials compared with the conventional surface, so that the surface of the curved surface part is better polished.

Description

Polishing barrel mechanism for curved glass and polishing method thereof Technical Field The invention relates to the technical field of 3D curved glass processing, in particular to a polishing barrel mechanism for curved glass and a polishing method thereof. Background The vehicle-mounted display panel comprises a central control display panel, an instrument display panel, a head-up display screen, an electronic rearview mirror display screen, a rear seat entertainment display screen and the like. In recent years, the market of vehicle-mounted panels shows a development trend of large screen size (a central control display panel, an instrument display panel and the like are integrated), so that an adaptive 3D glass panel (or called 3D large-curved glass or called curved glass piece) appears, and the 3D glass panel has the characteristics of light weight, thinness, fingerprint resistance, glare resistance, hanging damage resistance and the like, can realize the bending and folding of the surface of the vehicle-mounted display screen, can realize a high-quality display effect after the edge bending, thereby realizing the seamless connection of the three-dimensional surface in an uneven instrument panel area, improving the degree of freedom of design and function integration, further providing human-computer interaction interface functions and entertainment carriers, and becoming the main trend of the future development of the vehicle-mounted panel. The existing 3D large-curved-surface glass is formed by processing mold forming, in the forming processing process, when the mold is cleaned, the quality of the produced 3D large-curved-surface glass is better (no tiny pits) in the first several batches, and when the 3D large-curved-surface glass is produced for a period of time, a small amount of materials adhere to the mold during mold stripping, so that the production quality is reduced (the surface is not smooth enough). At present, a plurality of companies in the market directly use products formed by the mold on automobiles without subsequent treatment, and the products can meet basic requirements, but are slightly rough for some automobiles with high standard requirements. Of course, some companies will polish the product before it is installed on the car. However, at present, polishing and grinding processing for the vehicle-mounted display panel is very simple and is performed in a metal polishing manner, for example, coarse wax, a grinder, a yellow coarse sponge disc and the like are adopted, and polishing is performed manually or by means of a very simple mechanical structure. The polishing mode has low polishing efficiency on one hand and uncontrollable quality on the other hand, and the qualification rate is not particularly ideal. Therefore, the company develops polishing equipment (abandons the current crude processing mode) for automatic production aiming at vehicle-mounted 3D large-curved-surface glass so as to improve the production efficiency and control the polishing quality. The polishing equipment is used for polishing by grabbing the curved glass piece and then placing the glass piece in the auxiliary polishing barrel. In order to fully protect the whole, a plurality of main core patent points of polishing processing equipment in full-automatic production are respectively protected by a plurality of patents. The scheme is used for protecting the 'auxiliary polishing barrel'. Disclosure of Invention The invention aims to overcome the defects of the prior art, and provides a polishing barrel mechanism for curved glass, which solves the problem that the curved surface position of a curved glass piece is not easy to polish and can polish any position of the curved glass piece well according to the requirement. The polishing of curved glass pieces is not mature enough, especially the polishing of vehicle-mounted 3D large curved glass which is just developed. At present, the polishing processing of the vehicle-mounted 3D curved glass still uses the thought of polishing metal, namely, the curved glass piece is fixed firstly, and then the polishing mechanism and the curved glass piece are contacted and polished. Only by increasing polishing time, changing polishing materials, changing polishing pressure and the like, the polishing effect is improved. However, the polishing pressure is limited, the curved glass piece is easy to break due to too large polishing pressure, the polishing material time is increased, the quality is slightly improved only by a small amount, the surface finish is not changed, and the polishing quality is limited even if the polishing material is replaced. Therefore, a special apparatus for large curved glass is required, with which a new polishing method is formed to greatly improve polishing quality. (First aspect) The invention aims at realizing the technical scheme that the polishing barrel mechanism for the curved glass comprises a barrel body and an electromagnetic unit