A protective device for lens processing

Abstract

The utility model discloses a protective device for lens processing, and relates to the technical field of lens processing protective equipment. The protective device comprises a base slidably arranged on a working table of the lens processing device, a protective device is arranged on the base, the protective device comprises an upper protective shell, a lower protective shell, a mounting seat and an opening and closing mechanism, the upper protective shell and the lower protective shell are closed to form a protective cavity, and the opening and closing mechanism is used to control the opening and closing of the upper protective shell and the lower protective shell; a grinding channel and a circular channel are formed between the upper protective shell and the lower protective shell, one end of the grinding channel is connected to the outside, and the other end is connected to the circular channel, the extension direction of the grinding channel is the same as the moving direction of the base, and the central axis of the circular channel is perpendicular to the moving direction of the base. By installing the protective device on the working table of the lens processing device, when grinding is required, the protective device moves to the lens and wraps the lens inside, reducing the amount of glass debris generated during the grinding process splashing outward, thereby reducing the probability of safety accidents.

Description

Technical Field

[0001] The utility model relates to the technical field of lens processing protection equipment, in particular to a protection device for lens processing. Background Art

[0002] Optical glass is made of high-purity silicon, boron, sodium, potassium, zinc, lead, magnesium, calcium, barium and other oxides mixed according to a specific formula, melted in a platinum crucible at high temperature, stirred evenly with ultrasound to remove bubbles: then slowly cooled for a long time to prevent the glass block from generating internal stress. After cooling, the glass block must be measured by optical instruments to check whether the purity, transparency, uniformity, refractive index and dispersion rate meet the specifications. Qualified glass blocks are heated and forged to form optical lens blanks. When processing optical lenses, the surface of the lenses needs to be polished.

[0003] The patent with application number CN201922106120.0 discloses an optical lens processing tool, including a base, a top plate is provided on the top of the base, a working plate is provided between the base and the top plate, both ends of the top of the working plate are penetrated with perforations, a fixing rod is sleeved inside the perforations, and both ends of the fixing rod are fixedly connected to the base and the top plate respectively, and a displacement mechanism is provided on the working plate. The utility model is provided with a displacement mechanism, and the positions of the lens and the grinding block can be effectively fine-tuned separately by rotating the first rotating shaft and the second rotating shaft, and then the adjusting rod is rotated to drive the bottom working plate to move. The overall structure is simple and the operation is convenient. The positions of the lens and the grinding block can be fine-tuned separately, and the positions of the lens and the grinding block can also be moved as a whole at the same time, which greatly facilitates the operation of the processing equipment by the staff.

[0004] However, the grinding block of the tooling cannot provide good protection when grinding the lens clamped by the elastic clip. Glass fragments generated during the grinding of the edge of the lens are prone to splash everywhere, which can easily cause safety accidents.

[0005] Therefore, a protective device for lens processing is proposed. Utility Model Content

[0006] The utility model aims to overcome the shortcomings of the prior art and provide a protective device for lens processing.

[0007] The purpose of this utility model is achieved through the following technical solutions:

[0008] A protective device for lens processing, including a base slidably arranged on a workbench of the lens processing device, the displacement of the base on the workbench is controlled by a driving mechanism, a protective device is arranged on the base, the protective device includes an upper protective shell, a lower protective shell, a mounting seat arranged on the base and an opening and closing mechanism arranged on the mounting seat, the upper protective shell and the lower protective shell form a protective cavity after closing, and the opening and closing mechanism is used to control the opening and closing of the upper protective shell and the lower protective shell; a grinding channel and a circular channel are formed between the upper protective shell and the lower protective shell, one end of the grinding channel is connected to the outside, and the other end is connected to the circular channel, the extension direction of the grinding channel is the same as the moving direction of the base, and the central axis of the circular channel is perpendicular to the moving direction of the base.

[0009] Furthermore, in the utility model, the upper protective shell and the lower protective shell are both hinged to the mounting seat, the opening and closing mechanism comprises an upper hydraulic rod and a lower hydraulic rod which act synchronously, the upper hydraulic rod and the lower hydraulic rod are symmetrically arranged on the mounting seat, one end of the upper hydraulic rod is hinged to the mounting seat, and the other end is hinged to the upper protective shell; one end of the lower hydraulic rod is hinged to the mounting seat, and the other end is hinged to the lower protective shell.

[0010] Furthermore, the utility model also includes a limiting mechanism, which includes a plurality of elastic limiting rods, some of which are arranged on the upper protective shell, and the other part of which is arranged on the lower protective shell, and the plurality of elastic limiting rods are all located on the same side of the upper protective shell and the lower protective shell, and the plurality of elastic limiting rods are distributed in a circular array, and the center line of the array is collinear with the central axis of the circular channel; the radius of the circular area enclosed by the free ends of the plurality of elastic limiting rods is smaller than the radius of the circular channel.

[0011] Furthermore, in the utility model, an auxiliary grinding device is detachably provided on the above-mentioned lower protective shell, and the above-mentioned auxiliary grinding device includes a guide rail arranged on the above-mentioned lower protective shell, a driving motor slidably connected to the above-mentioned guide rail, and a grinding wheel arranged on the output shaft of the above-mentioned driving motor, the moving direction of the above-mentioned driving motor is the same as the extension direction of the above-mentioned grinding channel, and the above-mentioned grinding wheel can move in the above-mentioned grinding channel.

[0012] Furthermore, in the utility model, the bottom of the lower protective shell is connected to a discharge pipe, and the discharge pipe is connected to a waste chip collection device.

[0013] Furthermore, in the present invention, avoidance grooves are provided at both upper and lower ends of the mounting seat.

[0014] The beneficial effects of the utility model are:

[0015] The utility model provides a protective device for lens processing. The protective device is installed on a working table of the lens processing device. When grinding is required, the protective device is moved to the lens and the area around the lens is protected, thereby reducing the amount of glass fragments generated during the grinding process splashing outward, thereby reducing the probability of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the opening and closing mechanism of an embodiment of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the limiting mechanism of an embodiment of the utility model.

[0019] In the figure: 101-workbench; 201-base; 301-upper protective shell; 302-lower protective shell; 303-mounting seat; 304-upper hydraulic rod; 305-lower hydraulic rod; 401-grinding channel; 501-circular channel; 601-elastic limiting rod; 701-guide rail; 702-drive motor; 703-grinding wheel; 801-discharging pipe; 901-avoidance groove. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 , the utility model provides a technical solution:

[0022] A protective device for lens processing, suitable for protecting the edge of a lens when a grinding device is grinding the lens, comprises a base 201 slidably mounted on a workbench 101 of the lens processing device, the displacement of the base 201 on the workbench 101 is controlled by a driving mechanism (not shown in the figure), and the driving mechanism here can use a common screw nut mechanism. At the same time, a rotating shaft can be installed on the lens processing device, and the moving direction of the base 201 is perpendicular to the central axis of the rotating shaft, and the lens to be ground can be fixedly mounted on one end of the rotating shaft by vacuum adsorption.

[0023] In order to prevent the debris generated by grinding from splashing everywhere during lens grinding to cause safety accidents, a protective device is installed on the base 201. The protective device includes an upper protective shell 301, a lower protective shell 302, a mounting seat 303 mounted on the base 201, and an opening and closing mechanism mounted on the mounting seat 303. The upper protective shell 301 and the lower protective shell 302 form a protective cavity after closing, and the opening and closing mechanism is used to control the opening and closing of the upper protective shell 301 and the lower protective shell 302; a grinding channel 401 and a circular channel 501 are formed between the upper protective shell 301 and the lower protective shell 302, one end of the grinding channel 401 is connected to the outside, and the other end is connected to the circular channel 501, the extension direction of the grinding channel 401 is the same as the moving direction of the base 201, and the central axis of the circular channel 501 is perpendicular to the moving direction of the base 201.

[0024] In this embodiment, the grinding channel 401 is used for the grinding wheel 703 to pass through, and the circular channel 501 is used to accommodate the rotating shaft for mounting the lens to be ground.

[0025] Specifically, the upper protective shell 301 and the lower protective shell 302 are both hinged to the mounting seat 303, and the opening and closing mechanism includes an upper hydraulic rod 304 and a lower hydraulic rod 305 that act synchronously. The upper hydraulic rod 304 and the lower hydraulic rod 305 are symmetrically installed on the mounting seat 303. One end of the upper hydraulic rod 304 is hinged to the mounting seat 303, and the other end is hinged to the upper protective shell 301; one end of the lower hydraulic rod 305 is hinged to the mounting seat 303, and the other end is hinged to the lower protective shell 302. In this embodiment, the mounting seat 303 is designed as a hollow structure, and the upper hydraulic rod 304 and the lower hydraulic rod 305 are both installed in the mounting seat 303, so as to protect the two hydraulic rods.

[0026] When the upper protective shell 301 and the lower protective shell 302 are moved into place and closed, the contact between the grinding wheel 703 and the lens during grinding will generate vibration. If the distance between the rotating shaft and the shell is small, and if this vibration is large, the rotating shaft may contact the upper shell or the lower shell. If the vibration causes the upper shell or the lower shell to be misaligned, it will affect the protective effect of the shell. Therefore, a limiting mechanism is specially designed. The limiting mechanism includes a number of elastic limiting rods 601, some of which are installed on the upper protective shell 301, and the other part of the elastic limiting rods 601 are installed on the lower protective shell 302. All elastic limiting rods 601 are located on the same side of the upper protective shell 301 and the lower protective shell 302. The elastic limiting rods 601 are distributed in a circular array, and the center line of the array is collinear with the central axis of the circular channel 501; the radius of the circular area enclosed by the free ends of the elastic limiting rods 601 is smaller than the radius of the circular channel 501. This design can prevent the rotating shaft from directly contacting the shell when it vibrates, so as to affect the protective effect of the shell. At the same time, the plurality of elastic limiting rods 601 can also absorb a portion of the vibration generated by the rotating shaft during grinding, counteracting the tiny radial displacement of the rotating shaft during the grinding process, so as to reduce the influence of the rotating shaft vibration on the grinding accuracy.

[0027] The lens processing technology includes not only the process of grinding the lens, but also other processes. If there is no grinding device on some lens processing devices, and the edge of the lens needs to be ground at the same time, a separate grinding device needs to be used to grind the lens. In order to cope with this situation, in order to facilitate the grinding of the edge of the lens, an auxiliary grinding device is installed on the lower protective shell 302, which includes a guide rail 701 installed on the lower protective shell 302, a drive motor 702 slidably connected to the guide rail 701, and a grinding wheel 703 installed on the output shaft of the drive motor 702. The moving direction of the drive motor 702 is the same as the extension direction of the grinding channel 401, and the grinding wheel 703 can move in the grinding channel 401. Similarly, the back and forth movement of the drive motor 702 on the guide rail 701 can also be driven by a screw nut mechanism (not shown in the figure).

[0028] The debris generated by the grinding wheel 703 during the grinding of the lens edge is blocked by the upper protective shell 301 and the lower protective shell 302, and finally accumulates in the lower protective shell 302. In order to facilitate the cleaning of the debris, the bottom of the lower protective shell 302 is connected with a discharge pipe 801, and the discharge pipe 801 can be connected to a waste collection device (this is the prior art, so it is not shown in the figure). At the same time, a waste collection bucket can be placed at the end of the discharge pipe 801, and the waste generated during the grinding process can be directly discharged into the waste collection bucket through the discharge pipe 801.

[0029] Because the mounting seat 303 in this embodiment is designed as a hollow structure, the two hydraulic rods are located inside the mounting seat 303. In order to prevent the upper and lower ends of the mounting seat 303 from restricting its rotation when the two hydraulic cylinders rotate, avoidance grooves 901 are designed at both ends of the mounting seat 303.

[0030] Working principle:

[0031] Before grinding, the upper hydraulic rod 304 and the lower hydraulic rod 305 are started first, so that the upper hydraulic rod 304 and the lower hydraulic rod 305 are contracted at the same time, and the upper protective shell 301 and the lower protective shell 302 are separated. Then the driving mechanism for driving the base 201 to move is started, so that the two protective shells move toward the lens. When the lens to be ground is located between the two protective shells and the rotating shaft for mounting the lens is in the circular channel 501, the driving mechanism for driving the base 201 to move stops moving. At this time, the upper hydraulic rod 304 and the lower hydraulic rod 305 are extended at the same time, so that the upper protective shell 301 and the lower protective shell 302 are closed. After the two protective shells are closed, the two hydraulic rods stop extending and maintain the current state. Then the driving motor 702 works to drive the grinding wheel 703 to rotate, and then the driving motor 702 moves toward the lens under the drive of the corresponding driving mechanism. After the grinding wheel 703 contacts the edge of the lens, grinding can begin.

[0032] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A protective device for lens processing, comprising a base (201) slidably arranged on a working table (101) of a lens processing device, wherein the displacement of the base (201) on the working table (101) is controlled by a driving mechanism, and characterized in that: The base (201) is provided with a protective device, the protective device comprising an upper protective shell (301), a lower protective shell (302), a mounting seat (303) arranged on the base (201), and an opening and closing mechanism arranged on the mounting seat (303); the upper protective shell (301) and the lower protective shell (302) are closed to form a protective cavity; the opening and closing mechanism is used to control the opening and closing of the upper protective shell (301) and the lower protective shell (302); a grinding channel (401) and a circular channel (501) are formed between the upper protective shell (301) and the lower protective shell (302); one end of the grinding channel (401) is connected to the outside, and the other end is connected to the circular channel (501); the extension direction of the grinding channel (401) is the same as the movement direction of the base (201); and the central axis of the circular channel (501) is perpendicular to the movement direction of the base (201).

2. A protective device for lens processing according to claim 1, characterized in that: The upper protective shell (301) and the lower protective shell (302) are both hinged to the mounting seat (303); the opening and closing mechanism comprises an upper hydraulic rod (304) and a lower hydraulic rod (305) which act synchronously; the upper hydraulic rod (304) and the lower hydraulic rod (305) are symmetrically arranged on the mounting seat (303) in an upper and lower direction; one end of the upper hydraulic rod (304) is hinged to the mounting seat (303), and the other end is hinged to the upper protective shell (301); one end of the lower hydraulic rod (305) is hinged to the mounting seat (303), and the other end is hinged to the lower protective shell (302).

3. A protective device for lens processing according to claim 1 or 2, characterized in that: The invention also comprises a limiting mechanism, wherein the limiting mechanism comprises a plurality of elastic limiting rods (601), some of the elastic limiting rods (601) are arranged on the upper protective shell (301), and another portion of the elastic limiting rods (601) are arranged on the lower protective shell (302), the plurality of elastic limiting rods (601) are all located on the same side of the upper protective shell (301) and the lower protective shell (302), the plurality of elastic limiting rods (601) are distributed in a circular array, and the center line of the array is collinear with the center axis of the circular channel (501); the radius of the circular area enclosed by the free ends of the plurality of elastic limiting rods (601) is smaller than the radius of the circular channel (501).

4. A protective device for lens processing according to claim 1 or 2, characterized in that: An auxiliary grinding device is detachably provided on the lower protective shell (302), the auxiliary grinding device comprising a guide rail (701) provided on the lower protective shell (302), a drive motor (702) slidably connected to the guide rail (701), and a grinding wheel (703) provided on an output shaft of the drive motor (702), the moving direction of the drive motor (702) being the same as the extending direction of the grinding channel (401), and the grinding wheel (703) being able to move within the grinding channel (401).

5. The protective device for lens processing according to claim 3, characterized in that: The bottom of the lower protective shell (302) is connected to a discharge pipe (801), and the discharge pipe (801) is connected to a waste chip collection device.

6. A protective device for lens processing according to claim 2, characterized in that: The mounting seat (303) is provided with avoidance grooves (901) at both upper and lower ends.

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