High-precision double-aspherical automobile glass lens press

Abstract

The utility model discloses a high -precision double aspheric surface car glass lens is with compression type machine, it includes base, and the base is connected with the fixed base, and the fixed base top is provided with the mount, and the fixed base and mount are connected with four stand columns between, and the fixed base and mount are provided with the sliding seat of sliding setting on four stand columns between, the fixed base top is connected with the lower module, and the lower module top is provided with the upper module of fixed bottom surface on the sliding seat, the mount top is connected with the upper hydraulic telescopic cylinder, and the upper hydraulic telescopic cylinder middle telescopic rod end portion passes the mount and is fixed on the sliding seat, the base and fixed base are connected with the vertical frame between, the fixed base below is connected with the lower hydraulic telescopic cylinder, and the lower hydraulic telescopic cylinder middle telescopic rod end portion passes the fixed base and is fixedly connected with the sliding block, and the sliding block vertical sliding is connected in the die cavity of lower module. The utility model not only can one forming, still has the advantages such as finished product double aspheric surface flaw rate is lower and maintenance is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of lens forming equipment, and in particular to a high-precision forming machine for double aspherical automotive glass lenses. Background Technology

[0002] Double aspherical automotive glass lenses are core optical components in automotive lighting systems, achieving specific light projection patterns through refraction or coupling of light.

[0003] The fabrication of double aspherical automotive glass lenses typically involves a molding machine. This type of molding machine generally consists of a lower fixed mold and an upper moving mold. Molten glass is placed on the fixed mold, and then the moving mold is pressed onto the lower mold. The double aspherical automotive lens is formed through the cavities in the fixed and moving molds. However, this type of molding machine produces double aspherical automotive lenses with excess edge, requiring subsequent grinding and processing, resulting in higher production costs. Furthermore, during the molding process, the pressure between the moving and fixed molds makes it difficult for the molten glass to completely fill both cavities, leading to potential defects in the finished double aspherical lens.

[0004] Therefore, existing molding machines have the problems of being unable to form in one step and the finished product being prone to defects due to double aspherical surfaces. Utility Model Content

[0005] The purpose of this invention is to provide a high-precision forming machine for double aspherical automotive glass lenses. This invention not only enables one-time forming but also has the advantage of a low defect rate in the finished double aspherical lenses.

[0006] The technical solution of this utility model is as follows: A high-precision forming machine for double aspherical automotive glass lenses includes a base, a fixed seat fixedly connected above the base, a mounting seat above the fixed seat, and four rectangularly distributed columns fixedly connected between the fixed seat and the mounting seat; a sliding seat is provided between the fixed seat and the mounting seat, and the sliding seat is slidably mounted on the four columns; a lower module is connected to the top surface of the fixed seat, and an upper module is fixed to the bottom surface of the sliding seat above the lower module; a vertically downward-facing upper hydraulic telescopic cylinder is connected above the mounting seat, and the end of the telescopic rod in the upper hydraulic telescopic cylinder passes through the mounting seat and is fixed to the sliding seat; the base and the fixed seat are spaced apart, and a vertical frame is connected between the base and the fixed seat; a vertically upward-facing lower hydraulic telescopic cylinder is connected below the fixed seat and is located inside the frame; a slider is fixedly connected to the end of the telescopic rod in the lower hydraulic telescopic cylinder through the fixed seat, and the slider is vertically slidably connected to the mold cavity of the lower module.

[0007] In the aforementioned high-precision double aspherical automotive glass lens forming machine, the frame is composed of multiple connecting rods distributed between the edges of the base and the fixed seat.

[0008] In the aforementioned high-precision double aspherical automotive glass lens forming machine, the bottom surface of the upper module and the top surface of the lower module are both flat; multiple vertical upper positioning posts are connected to the bottom surface of the upper module corresponding to the outer part of its mold cavity; and a lower positioning groove is provided on the top surface of the lower module at the position of each upper positioning post.

[0009] In the aforementioned high-precision double aspherical automotive glass lens forming machine, an upper positioning groove is provided on one side of each upper positioning post on the bottom surface of the upper module; a lower positioning post is connected to the top surface of the lower module at the position corresponding to each upper positioning groove.

[0010] In the aforementioned high-precision double aspherical automotive glass lens forming machine, multiple positioning recesses are interference-fitted at the edge of the upper module; and positioning protrusions are interference-fitted at the edge of the lower module corresponding to the position of each positioning recess.

[0011] Compared with the prior art, this utility model uses an upper hydraulic telescopic cylinder on the mounting base to drive the sliding seat to slide up and down relative to the fixed base, thereby controlling the pressing and separation of the upper module relative to the lower module. Four rectangularly distributed columns are connected between the fixed base and the mounting base, and the sliding seat is slidably mounted on the four columns, resulting in high stability when the sliding seat slides up and down. The lower hydraulic telescopic cylinder on the fixed base drives the slider to slide up and down within the mold cavity of the lower module. After the slider moves down, the molten glass placed on the slider can enter the mold cavity of the lower module. After the upper module presses onto the lower module, the mold cavities on the upper module and the lower module are closed. Then, the slider is controlled to rise, and the molten glass can be molded. During the molding process, the main body of the molten glass is located in the mold cavity of the upper module, which makes it less likely to have excess edges. It can be formed in one step, and the pressure during the molding process acts on the molten glass, which can better fill the mold cavity, resulting in a lower defect rate of double aspherical surfaces in the finished product.

[0012] In addition, the frame of this utility model is composed of multiple connecting rods distributed between the edges of the base and the fixed seat, which allows the staff to maintain the lower hydraulic telescopic cylinder under the fixed seat through the gap between adjacent connecting rods, making the maintenance operation more convenient.

[0013] Both the bottom surface of the upper module and the top surface of the lower module are flat, allowing for good cavity closure when they are fitted together. Multiple vertical upper positioning pins are connected to the outer side of the upper module's cavity on its bottom surface, with each pin having an upper positioning groove on one side. The lower module has lower positioning grooves at the corresponding positions of the upper positioning pins, and lower positioning pins at the corresponding positions of the upper positioning grooves. This ensures stability when the upper module is pressed onto the lower module, improving molding accuracy and reducing the defect rate. Multiple positioning recesses are interference-fitted at the edges of the upper module, and positioning protrusions are interference-fitted at the corresponding positions of the positioning recesses at the edges of the lower module. This further enhances stability when the upper module is pressed onto the lower module, thereby improving molding accuracy and reducing the defect rate.

[0014] Therefore, this utility model not only enables one-time molding, but also has the advantages of low defect rate of finished double aspherical surfaces and convenient maintenance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a structural diagram of the bottom surface of the upper module;

[0017] Figure 3 yes Figure 2 Sectional view of AA;

[0018] Figure 4 yes Figure 2 Sectional view of BB;

[0019] Figure 5 This is a structural diagram of the top surface of the lower module;

[0020] Figure 6 yes Figure 5 Sectional view of CC;

[0021] Figure 7 yes Figure 5 A sectional view of DD.

[0022] The labels in the attached diagram are: 1-base, 2-fixed seat, 3-mounting seat, 4-column, 5-sliding seat, 6-lower module, 7-upper module, 8-upper hydraulic telescopic cylinder, 9-frame, 10-lower hydraulic telescopic cylinder, 11-slider, 13-upper positioning post, 14-lower positioning groove, 15-upper positioning groove, 16-lower positioning post, 17-positioning recess, 18-positioning protrusion. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0024] Example. A high-precision forming machine for double aspherical automotive glass lenses, configured as follows: Figures 1 to 7 As shown, the system includes a base 1, a fixed seat 2 fixedly connected above the base 1, an mounting seat 3 above the fixed seat 2, and four rectangular columns 4 fixedly connected between the fixed seat 2 and the mounting seat 3. A sliding seat 5 is provided between the fixed seat 2 and the mounting seat 3, and the sliding seat 5 is slidably mounted on the four columns 4. A lower module 6 is connected to the top surface of the fixed seat 2, and an upper module 7 is fixed to the bottom surface of the sliding seat 5 above the lower module 6. A vertically downward-facing upper hydraulic telescopic cylinder 8 is connected above the mounting seat 3, and the end of the telescopic rod in the upper hydraulic telescopic cylinder 8 passes through the mounting seat 3 and is fixed to the sliding seat 5. The base 1 and the fixed seat 2 are spaced apart, and a vertical frame 9 is connected between the base 1 and the fixed seat 2. A vertically upward-facing lower hydraulic telescopic cylinder 10 is connected below the fixed seat 2 and is located inside the frame 9. A slider 11 is fixedly connected to the end of the telescopic rod in the lower hydraulic telescopic cylinder 10, which passes through the fixed seat 2, and the slider 11 is vertically slidably connected to the mold cavity of the lower module 6.

[0025] The frame 9 is composed of multiple connecting rods distributed between the edges of the base 1 and the fixed base 2; the bottom surface of the upper module 7 and the top surface of the lower module 6 are both flat; multiple vertical upper positioning posts 13 are connected to the bottom surface of the upper module 7 corresponding to the outer part of its mold cavity; a lower positioning groove 14 is provided on the top surface of the lower module 6 corresponding to the position of each upper positioning post 13; an upper positioning groove 15 is provided on one side of each upper positioning post 13 on the bottom surface of the upper module 7; a lower positioning post 16 is connected to the top surface of the lower module 6 corresponding to the position of each upper positioning groove 15; multiple positioning recesses 17 are interference-fitted at the edge of the upper module 7; a positioning protrusion 18 is interference-fitted at the edge of the lower module 6 corresponding to the position of each positioning recess 17.

[0026] Working principle: Initially, the top of slider 11 is flush with the top surface of lower module 6. When the glass segment is heated to a molten state in the glass softening furnace, the mechanical grippers transfer the molten glass segment to the mold cavity of lower module 6 and are lifted by slider 11. Subsequently, the lower hydraulic telescopic cylinder 10 fixedly connected below the fixed seat 2 drives slider 11 to move downward, and drives the molten glass segment to move downward into the mold cavity of lower module 6. Then, the upper hydraulic telescopic cylinder 8 fixedly connected above the mounting seat 3 drives sliding seat 5 to move downward along the four columns 4 toward fixed seat 2 until the upper module 7 on the bottom surface of sliding seat 5 presses onto lower module 6, so that the mold cavities on upper module 7 and lower module 6 are closed (the multiple vertical upper positioning columns 13 on the bottom surface of upper module 7 are correspondingly inserted into the multiple lower positioning slots 14 on the top surface of lower module 6, and the multiple vertical lower positioning columns 14 on the top surface of lower module 6 are correspondingly inserted into the multiple lower positioning slots 14 on the top surface of lower module 6). Positioning pins 16 are inserted into multiple upper positioning grooves 15 on the bottom surface of upper module 7; multiple positioning recesses 17 on the edge of upper module 7 and multiple positioning protrusions 18 on the edge of lower module 6 are correspondingly engaged to ensure high stability of the mold cavity closure on upper module 7 and lower module 6; then, lower hydraulic telescopic cylinder 10 drives slider 11 to move upward, pressing the molten glass segment in the closed mold cavity between upper module 7 and lower module 6. The pressing pressure is controlled by controlling the upward movement distance of slider 11, so that the molten glass segment can better fill the closed mold cavity, resulting in higher precision and fewer defects in the upper and lower aspherical surfaces of the formed glass lens; after pressing for a period of time (about 10 seconds), upper hydraulic telescopic cylinder 8 drives upper module 7 to move upward and reset, and lower hydraulic telescopic cylinder 10 drives slider 11 to move upward and push the formed glass lens upward out of the mold cavity of lower module 6.

[0027] The frame 9 between the base 1 and the fixed seat 2 is composed of multiple connecting rods distributed between the edges of the base 1 and the fixed seat 2, which allows the staff to maintain the lower hydraulic telescopic cylinder 10 under the fixed seat 2 through the gap between adjacent connecting rods, making the maintenance operation more convenient.

Claims

1. A high-precision forming machine for double aspherical automotive glass lenses, comprising a base (1), a fixed seat (2) fixedly connected above the base (1), a mounting seat (3) provided above the fixed seat (2), and four rectangularly distributed columns (4) fixedly connected between the fixed seat (2) and the mounting seat (3); a sliding seat (5) provided between the fixed seat (2) and the mounting seat (3), the sliding seat (5) being slidably mounted on the four columns (4); a lower module (6) connected to the top surface of the fixed seat (2), an upper module (7) fixed to the bottom surface of the sliding seat (5) provided above the lower module (6); a vertically downward-facing upper hydraulic telescopic cylinder (8) connected above the mounting seat (3), the end of the telescopic rod in the upper hydraulic telescopic cylinder (8) passing through the mounting seat (3) and fixed to the sliding seat (5); characterized in that: The base (1) and the fixed seat (2) are spaced apart, and a vertical frame (9) is connected between the base (1) and the fixed seat (2); a vertically upward-facing lower hydraulic telescopic cylinder (10) is connected below the fixed seat (2), and the lower hydraulic telescopic cylinder (10) is located inside the frame (9); the end of the telescopic rod in the lower hydraulic telescopic cylinder (10) passes through the fixed seat (2) and is fixedly connected to a slider (11), and the slider (11) is vertically slidably connected in the mold cavity of the lower module (6).

2. The high-precision forming machine for double aspherical automotive glass lenses according to claim 1, characterized in that: The frame (9) is composed of multiple connecting rods distributed between the edges of the base (1) and the fixed seat (2).

3. The high-precision forming machine for double aspherical automotive glass lenses according to claim 1, characterized in that: The bottom surface of the upper module (7) and the top surface of the lower module (6) are both planes; the bottom surface of the upper module (7) is connected to multiple vertical upper positioning posts (13) corresponding to the outer part of its mold cavity; the top surface of the lower module (6) is provided with a lower positioning groove (14) corresponding to the position of each upper positioning post (13).

4. The high-precision forming machine for double aspherical automotive glass lenses according to claim 3, characterized in that: The bottom surface of the upper module (7) is provided with an upper positioning groove (15) on one side corresponding to each upper positioning post (13); the top surface of the lower module (6) is connected with a lower positioning post (16) at the position corresponding to each upper positioning groove (15).

5. A high-precision forming machine for double aspherical automotive glass lenses according to claim 1, characterized in that: The upper module (7) has multiple positioning recesses (17) interlocked at its edge; the lower module (6) has positioning protrusions (18) interlocked at the edge corresponding to the position of each positioning recess (17).

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