Control device for fine machining of spectacle lenses

Abstract

The utility model relates to a control device for spectacle lens finish machining, which comprises a control system, a slotting control part, a mode selection part, a guide part and a grinding wheel part, the slotting control part and the grinding wheel part are fixed on a main machine of spectacle lens finish machining equipment, and the mode selection part and the guide part are fixed on the slotting control part. According to the utility model, the processing mode is freely selected and the slotting position is freely controlled through a control system and a mechanical structure, so that great convenience is provided for a processor; and compared with the prior art, the machining efficiency is higher, and good social and economic benefits are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of spectacle lens finishing, in particular to a control device for spectacle lens finishing. BACKGROUND

[0002] The traditional spectacle lens finishing mode is to use a semi-automatic slotting machine and a hand grinder for finishing. This type of processing mode needs artificial control, such as slotting position selection (generally processed according to a three-seven or five-five ratio, and the three-seven and five-five ratio is the slot position from the convex surface position of the lens) and processing mode selection (i.e. slotting mode and chamfering mode). This mode has certain requirements for the level of processing teachers, increases the industry threshold, and is low in efficiency. Moreover, two devices of the semi-automatic slotting machine and the hand grinder need to be purchased to better finish the lens, and the cost performance is low. SUMMARY

[0003] The utility model aims at providing a control device for spectacle lens finishing to solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a control device for spectacle lens finishing, comprising a control system, a slotting control part, a mode selection part, a guide part and a grinding wheel part, the slotting control part and the grinding wheel part are fixed on a spectacle lens finishing equipment main machine, and the mode selection part and the guide part are fixed on the slotting control part.

[0005] Optionally, the slotting control part comprises a bottom plate, a motor mounting column and a micro switch frame are fixed on the bottom plate, a first micro switch is arranged on the micro switch frame, the micro switch frame is connected with a guide motor frame, the guide motor frame is connected with a groove depth control frame through a motor frame fixing column, the groove depth control frame is connected with a lens bracket, and the motor mounting column is connected with a groove depth linear motor.

[0006] Optionally, the mode selection part comprises a first motor and a second micro switch arranged on the guide motor frame, and a reed fixing column arranged on the groove depth control frame, the first motor is connected with a cam, the reed fixing column is connected with a reed, and the reed is provided with a convex point, a synchronization pin and an adjusting groove.

[0007] Optionally, the guide part is the same in structure and is arranged symmetrically left and right, comprising a guide seat, a fixing column and a guide arm are arranged on the guide seat, an adjusting disc is arranged on the fixing column, a first adjusting column and a second adjusting column are arranged on the adjusting disc, springs are arranged on the left and right second adjusting columns, and a guide wheel is arranged on the guide arm.

[0008] Optionally, the cam comprises a first arc-shaped boss and a second arc-shaped boss arranged on two sides, and a center column arranged in the center, wherein the center column is provided with a curved groove.

[0009] Compared with the prior art, the utility model has the beneficial effects that:

[0010] The utility model discloses through control system and mechanical structure free choice processing mode and control slotting position, has provided great convenience for processing teacher, compared with prior art processing efficiency is higher, has good social and economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the whole structure schematic diagram of the utility model;

[0012] Figure 2 It is the structure schematic diagram of the slotting control portion of the utility model;

[0013] Figure 3 It is the structure schematic diagram of the mode selection portion of the utility model;

[0014] Figure 4 It is the position schematic diagram of the adjustment slot of the utility model;

[0015] Figure 5 It is the structure schematic diagram of the cam of the utility model;

[0016] Figure 6 It is the structure schematic diagram of the guide portion of the utility model;

[0017] Figure 7 It is the schematic diagram of the initial state of the guide portion of the utility model;

[0018] Figure 8 It is the schematic diagram of the state of the chamfer mode guide portion of the utility model;

[0019] Figure 9 It is the schematic diagram of the state of the symmetrical slotting mode guide portion of the utility model;

[0020] Figure 10 It is the schematic diagram of the state of the adjustable distance slotting mode guide portion of the utility model. DETAILED DESCRIPTION

[0021] In order to further explain the technical means and effects adopted by the utility model for realizing the predetermined utility model purposes, the following will be described in detail in combination with the preferred embodiments, the specific embodiments, structures, features and effects of the utility model.

[0022] As Figures 1-10As shown, a control device for spectacle lens finishing includes a control system, a slotting control part 100, a mode selection part 200, a guide part 300 and a grinding wheel part 400, the slotting control part 100 and the grinding wheel part 400 are fixed on the main machine of the spectacle lens finishing equipment, and the mode selection part 200 and the guide part 300 are fixed on the slotting control part 100.

[0023] The slotting control part 100 includes a bottom plate 104, a motor mounting column 109 and a micro switch frame 105 are fixed on the bottom plate 104, a first micro switch 106 is arranged on the micro switch frame 105, the micro switch frame 105 is connected with a guide motor frame 107, the guide motor frame 107 is connected with a slot depth control frame 101 through a motor frame fixing column 108, the slot depth control frame 101 is connected with a lens holder 111, and the motor mounting column 109 is connected with a slot depth linear motor 110; the slot depth control frame 101 is connected with a slot depth rotating shaft 102, and a bearing 103 is arranged on the slot depth rotating shaft 102.

[0024] The mode selection part 200 includes a first motor 201 and a second micro switch 203 arranged on the guide motor frame 107, and a reed fixing column 205 arranged on the slot depth control frame 101, the first motor 201 is connected with a cam 202, the reed fixing column 205 is connected with a reed 204, and a convex point 206, a synchronization pin 207 and an adjusting groove 208 are arranged on the reed 204.

[0025] The guide part 300 is symmetrically arranged on the left and right sides and has the same structure, and includes a guide seat 301, a fixing column 303 and a guide arm 306 are arranged on the guide seat 301, an adjusting disc 302 is arranged on the fixing column 303, a first adjusting column 304 and a second adjusting column 305 are arranged on the adjusting disc 302, springs 308 are arranged on the left and right second adjusting columns 305, and a guide wheel 307 is arranged on the guide arm 306.

[0026] The cam 202 includes a first arc-shaped boss 2021 and a second arc-shaped boss 2022 arranged on both sides, and a center stand 2023 arranged in the center, and a curved groove 2024 is arranged on the center stand 2023.

[0027] When this invention is in operation, if the lens chamfering mode is selected, a program sends a command to the first motor 201, which then drives it to rotate clockwise. This, in turn, drives the cam 202 to rotate. After the cam rotates a certain angle, the protrusion 206 contacts the cam 202 and moves upward along the curved groove 2024. As the cam 202 rotates, when the protrusion 206 moves to the highest point of the central column 2023 of the cam 202, the cam 202 lifts the protrusion 206, which in turn lifts the spring 204. At the same time, the synchronizing pin 207 is lifted, and the guide part 300 moves asynchronously left and right. At this time, the left and right guide seats 301 are in a closed state. When the first arc-shaped protrusion 2021 on the cam 202 contacts the first adjusting column 304 on the left side, the first adjusting column 304 on the left side moves inward along the inclined surface of the first arc-shaped protrusion 2021, and then the first adjusting column 304 on the left side... The first adjusting column 304 drives the left guide seat 301 to rotate counterclockwise on the left fixed column 303, that is, the left guide part 300 opens, and the return spring 308 is in a stretched state. At this time, the cam 202 continues to rotate. When the second arc-shaped boss 2022 contacts and presses the first adjusting column 304 on the right, the right guide part 300 opens (the process is the same as the opening process of the left guide part, and will not be described again here). At this time, both the left and right guide parts 300 are in the open state and the spring 308 is still in the stretched state. When the cam 202 continues to rotate until the first arc-shaped boss 2021 separates from the first adjusting column 304 on the left, the cam 202 stops rotating. At this time, the first adjusting column 304 on the left loses pressure and, under the pulling force of the spring 308, the left guide seat 301 begins to rotate clockwise, that is, the left guide seat 301 resets. At this time, the right guide seat 301 is still in the open state. This state is the chamfering mode. After the lens is chamfered, the cam 202 starts to rotate clockwise from its current position. When the first arc-shaped boss 2021 contacts the second micro switch 203, the second micro switch 203 closes and feeds back an electrical signal to the control system. The control system then stops driving the first motor 201, and the cam 202 stops rotating. That is, the guide part 300 and the mode selection part 200 return to the zero position.

[0028] The grooving patterns are divided into adjustable distance grooving pattern and symmetrical grooving pattern;

[0029] When the symmetric slotting mode is selected (the so-called symmetric slotting means that the slotting position is at the center of the lens side edge, also known as the equal proportion slotting), the program sends a command to the first motor 201 to drive it to start counterclockwise rotation. When the second arc-shaped boss 2022 first contacts the left first adjusting column 304 and is extruded, the left first adjusting column 304 moves inward, and the left first adjusting column 304 drives the left guide seat 301 to rotate counterclockwise on the left fixed column 303, that is, the left guide part 300 is opened. At this time, because the synchronous pin 207 is in the groove of the left and right adjusting discs 302, when the left guide part is opened, the left adjusting disc 302 extrudes the synchronous pin 207 to drive the synchronous pin 207 to move forward in the adjusting groove 208, and further, the synchronous pin 207 extrudes the right adjusting disc 302 to drive the right adjusting disc 302 to rotate clockwise, that is, the left and right guide parts are synchronously opened. When the lens falls to the same height of the guide wheel 307, the first motor 201 starts to rotate clockwise, that is, the cam 202 starts to rotate clockwise, that is, the left and right guide parts 300 start to close, and then clamp the lens. Because the slotting grinding wheel is below the symmetric axis of the left and right guide parts 300, at this time, the lens side edge center position contacts the grinding wheel during lens processing and starts to process, which is the symmetric slotting mode. When the processing is completed, the left and right guide parts 300 are reset, and the reset process is in reverse order of the above process, that is, the cam 202 first rotates clockwise to drive the left and right guide parts 300 to open, and when the lens leaves the same height of the guide wheel 307, the cam 202 rotates counterclockwise to drive the left and right guide parts to close.

[0030] When the adjustable distance slotting mode is selected (the so-called adjustable distance slotting mode means that the slotting position is adjustable), the early running process is the same as that of the chamfering mode, which will not be repeated here. When the left guide seat 301 is in the closed state and the right guide seat 301 is in the open state, at this time, the lens falls to the same height of the guide wheel 307, the first motor 201 continues to rotate clockwise, that is, the cam 202 rotates clockwise, and when the second arc-shaped boss 2022 is separated from the right first adjusting column 304, the left and right guide parts 300 are in the closed state. In this process, the left guide part 300 is always in the closed state, and the right guide part 300 is in the process of gradually closing from the open state. Because the lens falling position is always above the chamfering grinding wheel, when the right guide part 300 contacts the lens and continues to close, that is, the right guide part 300 will gradually move the lens above the slotting grinding wheel. At this time, by controlling the closing angle of the right guide part 300, that is, controlling the position of the lens above the slotting grinding wheel, the purpose of realizing the adjustable distance of the lens slotting is achieved. The closing angle of the right guide part 300 is controlled by the contact position of the cam 202 and the right first adjusting column 304, that is, by the rotation angle of the cam 202. The formula of the closing angle of the right guide part 300 and the rotation angle of the cam 202 is:

[0031]

[0032] The displacement amount is the distance that the lens moves following the right guide portion 300 from the falling position; The displacement amount is the distance that the lens moves following the right guide portion 300 from the falling position;

[0033] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make minor changes or modifications to the disclosed technical content within the scope of the technical solution of the present application to obtain equivalent embodiments. Any indirect modification, equivalent change and modification of the above embodiments made in accordance with the technical essence of the present application, without departing from the technical solution of the present application, are still within the scope of the technical solution of the present application.

Claims

1. A control device for precision machining of spectacle lenses, characterized in that, It includes a control system, a grooving control unit (100), a mode selection unit (200), a guide unit (300), and a grinding wheel unit (400). The grooving control unit (100) and the grinding wheel unit (400) are fixed on the main body of the spectacle lens finishing equipment, and the mode selection unit (200) and the guide unit (300) are fixed on the grooving control unit (100).

2. The control device for precision machining of spectacle lenses according to claim 1, characterized in that, The grooving control unit (100) includes a base plate (104), on which a motor mounting column (109) and a micro switch frame (105) are fixed. A first micro switch (106) is provided on the micro switch frame (105). The micro switch frame (105) is connected to a guide motor frame (107). The guide motor frame (107) is connected to a groove depth control frame (101) through a motor frame fixing column (108). The groove depth control frame (101) is connected to a lens holder (111). The motor mounting column (109) is connected to a groove depth linear motor (110). The groove depth control frame (101) is connected to the groove depth rotating shaft (102), and the groove depth rotating shaft (102) is provided with a bearing (103).

3. The control device for precision machining of spectacle lenses according to claim 2, characterized in that, The mode selection unit (200) includes a first motor (201) and a second micro switch (203) mounted on a guide motor frame (107), and a spring fixing post (205) mounted on a groove depth control frame (101). The first motor (201) is connected to a cam (202), and the spring fixing post (205) is connected to a spring (204). The spring (204) is provided with a protrusion (206), a synchronizing pin (207), and an adjusting groove (208).

4. The control device for precision machining of spectacle lenses according to claim 3, characterized in that, The guide parts (300) have the same structure and are arranged symmetrically on the left and right. They include a guide seat (301), a fixed post (303) and a guide arm (306) on the guide seat (301), an adjusting plate (302) on the fixed post (303), a first adjusting post (304) and a second adjusting post (305) on the adjusting plate (302), and springs (308) on the two second adjusting posts (305) on the left and right sides. The guide arm (306) is equipped with a guide wheel (307).

5. A control device for precision machining of spectacle lenses according to claim 4, characterized in that, The cam (202) includes a first arc-shaped boss (2021) and a second arc-shaped boss (2022) on both sides, and a central column (2023) in the center, the central column (2023) having a curved groove (2024).

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