Lens processing positioning clamp

Abstract

The utility model relates to the technical field of lens processing, in particular to a lens processing positioning clamp which comprises a workbench, a clamping assembly and a height adjusting assembly, the clamping assembly comprises a motor, a positive and negative tooth screw rod, a guide rod, a sliding block, a fixing base and a clamping piece, and supporting legs are arranged at the four corners of the lower portion of the workbench. The workbench is provided with two sets of sliding grooves which are symmetrically arranged, the two sets of sliding grooves are internally provided with the guide rods and the positive and negative tooth screw rods respectively, sliding blocks extending into the corresponding sliding grooves are arranged below the fixing base, and the guide rods penetrate through the corresponding sliding blocks. The output height of the height adjusting assembly is adjusted so that stable supporting can be provided for materials, then the positive and negative tooth screw rod is driven to rotate through the motor, the sliding block in threaded connection with the positive and negative tooth screw rod is arranged below the two sets of clamping plates, and the two sets of clamping plates move in the opposite directions to stably clamp the materials.

Description

Technical Field

[0001] The utility model relates to the technical field of lens processing, in particular to a positioning fixture for lens processing. Background Technique

[0002] As is well known, a lens is a transparent optical element, and its main function is to refract and reflect light. Lenses can be applied to various optical devices;

[0003] The existing devices for lens processing are not convenient for replacing fixtures of different specifications to process lenses of different specifications, and the existing devices for lens processing are not convenient for adjusting the height of materials to meet the requirements of different processings. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a positioning fixture for lens processing.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solution: A positioning fixture for lens processing, including a workbench, a clamping assembly and a height adjustment assembly. The clamping assembly includes a motor, a positive and negative thread screw rod, a guide rod, a slider, a fixed seat and a clamping member. Legs are arranged at the four corners below the workbench. Two groups of symmetrically arranged chutes are arranged on the workbench. The guide rod and the positive and negative thread screw rod are respectively arranged in the two groups of chutes. A slider extending into the corresponding chute is arranged below the fixed seat. The guide rod penetrates through the corresponding slider. The positive and negative thread screw rod penetrates through the corresponding slider and is threadedly connected with it. The fixed seats are arranged in two groups symmetrically. A clamping member is arranged at one end of the fixed seat close to the center of the workbench. A height adjustment assembly is also arranged at the center of the workbench. The height adjustment assembly includes a lifter and a lifting plate. The lifter is embedded in the center of the workbench. The upper part of the lifter is connected with the lifting plate. The lifter is arranged between the two clamping members. The output end of the motor penetrates through the corresponding chute and is connected with the positive and negative thread screw rod.

[0008] To facilitate the stable clamping of materials, the utility model is improved in that the clamping member includes a clamping plate and a connecting member. The fixed seat is in a U shape with a lower opening. The clamping plate is connected to the top wall of the fixed seat through the connecting member.

[0009] To facilitate the stable lifting adjustment of materials, the utility model is improved in that a lifting hole adapted to the lower opening of the fixed seat is arranged on the clamping plate. Both sides of the lifting plate penetrate through the lifting hole and the lower opening of the fixed seat.

[0010] Preferably, the motor is a servo motor.

[0011] Preferably, the lifter is a cylinder.

[0012] To facilitate the disassembly and assembly of the clamping plate, the present invention is improved in that the connecting member includes a connecting block, a fixing block, a spring and a telescopic rod. The connecting block is T-shaped, and movable grooves are further provided on the left and right sides of the connecting block. The spring and the telescopic rod are arranged in the movable groove. The spring is sleeved on the telescopic rod, and both ends of the spring and the telescopic rod are respectively connected to the inner wall of the movable groove and one end of the fixing block. Fixing holes adapted to the fixing blocks are provided on the left and right sides of the fixed seat.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the present invention provides a lens processing positioning fixture, which has the following

[0015] beneficial effects:

[0016] For this lens processing positioning fixture, at first, the gap between the two clamping plates is relatively large. According to requirements, the output height of the height adjustment component is adjusted to provide stable support for the material. Then, the motor drives the rotation of the positive and negative threaded screw. Sliders threadedly connected to the positive and negative threaded screw are provided below the two clamping plates, and the two clamping plates move towards each other to stably clamp the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view schematic diagram of the structure of the present invention;

[0018] Figure 2 is the partial bottom view schematic diagram of the structure of the present invention;

[0019] Figure 3 is the schematic diagram of the clamping member of the structure of the present invention; [[ID=3′′]]

[0020] Figure 4 is the partial schematic diagram of the connecting member of the structure of the present invention.

[0021] In the figure: 1, workbench; 2, leg; 3, motor; 4, positive and negative threaded screw; 5, guide rod; 6, slider; 7, fixed seat; 8, lifter; 9, lifting plate; 10, clamping plate; 11, connecting block; 12, fixing block; 13, spring; 14, telescopic rod. DETAILED DESCRIPTION OF THE INVENTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4 , a lens processing positioning fixture, including a workbench 1, a clamping assembly, and a height adjustment assembly. The clamping assembly includes a motor 3, a positive and negative thread screw 4, a guide rod 5, a slider 6, a fixed seat 7, and a clamping member. Four corner legs 2 are provided below the workbench 1. Two groups of symmetrically arranged chutes are provided on the workbench 1. The guide rod 5 and the positive and negative thread screw 4 are respectively arranged in the two groups of chutes. A slider 6 extending into the corresponding chute is provided below the fixed seat 7. The guide rod 5 penetrates through the corresponding slider 6. The positive and negative thread screw 4 penetrates through the corresponding slider 6 and is threadedly connected thereto. The fixed seats 7 are arranged in two groups symmetrically. A clamping member is provided at one end of the fixed seat 7 close to the center of the workbench 1. A height adjustment assembly is also provided at the center of the workbench 1. The height adjustment assembly includes a lifter 8 and a lifting plate 9. The lifter 8 is embedded in the center of the workbench 1. The upper part of the lifter 8 is connected to the lifting plate 9. The lifter 8 is arranged between the two clamping members. The output end of the motor 3 penetrates through the corresponding chute and is connected to the positive and negative thread screw 4.

[0024] Four corner legs 2 are provided below the workbench 1. Initially, the gap between the two sliders 6 is large. Start the lifter 8. The lifter 8 drives the lifting plate 9 to rise. The lifting plate 9 is smaller than the outer diameter of the material. Start the motor 3. The motor 3 drives the positive and negative thread screw 4 to rotate. The slider 6 below the corresponding fixed seat 7 drives the clamping member on the corresponding fixed seat 7 to move towards each other under the drive of the positive and negative thread screw 4. The other slider 6 is slidably connected to the guide rod 5 to ensure the stability of the movement of the fixed seat 7. The motor 3 uses a servo motor 3 with stable operation, and the lifter 8 uses a cylinder with rapid response.

[0025] In the above structure, if the lifting plate 9 is too small, the material is likely to fall. To solve the above problem, the clamping member includes a clamping plate 10 and a connecting member. The fixed seat 7 is in a U shape with a lower opening. The clamping plate 10 is connected to the top wall of the fixed seat 7 through the connecting member. A lifting hole adapted to the lower opening of the fixed seat 7 is provided on the clamping plate 10. Both sides of the lifting plate 9 penetrate through the lifting hole and the lower opening of the fixed seat 7. Extension plates are provided on the left and right sides of the lifting plate 9 to provide stable support for the material, and then cooperate with the clamping plate 10 to stably clamp the material.

[0026] In the actual use process, it is necessary to replace the clamping plates 10 of different specifications according to the specifications of the materials. For this purpose, the connecting member includes a connecting block 11, a fixing block 12, a spring 13 and a telescopic rod 14. The connecting block 11 is T-shaped, and movable grooves are further provided on the left and right sides of the connecting block 11. The spring 13 and the telescopic rod 14 are arranged in the movable grooves. The spring 13 is sleeved on the telescopic rod 14, and both ends of the spring 13 and the telescopic rod 14 are respectively connected to the inner wall of the movable groove and one end of the fixing block 12. Fixing holes adapted to the fixing blocks 12 are provided on the left and right sides of the fixed seat 7. The connecting block 11 is inserted into the fixed seat 7. When the fixing holes are aligned with the movable grooves, the spring 13 drives the fixing block 12 to protrude from the fixing holes, completing the assembly of the connecting block 11 and the fixed seat 7. The telescopic rod 14 provides stable support for the fixing block 12.

[0027] To illustrate in detail the possible application scenarios, technical principles, specific implementable solutions, achievable purposes and effects of the present application, the following is described in detail with reference to the specific examples listed and in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, so they are only examples and cannot be used to limit the protection scope of the present application.

[0028] In this article, referring to "embodiment" means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The term "embodiment" that appears in various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0029] Unless otherwise defined, the meanings of the technical terms used herein are the same as those generally understood by those skilled in the technical field to which the present application belongs; the use of the relevant terms herein is only for describing specific embodiments and is not intended to limit the present application.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lens processing positioning fixture, comprising a workbench (1), a clamping assembly and a height adjusting assembly, characterized in that: The clamping assembly includes a motor (3), a left - hand and right - hand screw (4), a guide rod (5), a slider (6), a fixed seat (7) and a clamping member. Legs (2) are provided at the four corners below the workbench (1). Two sets of symmetrically arranged chutes are provided on the workbench (1). The guide rod (5) and the left - hand and right - hand screw (4) are respectively arranged in the two sets of chutes. A slider (6) extending into the corresponding chute is provided below the fixed seat (7). The guide rod (5) penetrates through the corresponding slider (6). The left - hand and right - hand screw (4) penetrates through the corresponding slider (6) and is thread - connected thereto. The fixed seats (7) are arranged in two sets symmetrically. A clamping member is provided at one end of the fixed seat (7) close to the center of the workbench (1). A height - adjusting assembly is further provided at the center of the workbench (1). The height - adjusting assembly includes a lifter (8) and a lifting plate (9). The lifter (8) is embedded in the center of the workbench (1). The upper part of the lifter (8) is connected to the lifting plate (9). The lifter (8) is arranged between the two clamping members. The output end of the motor (3) penetrates through the corresponding chute and is connected to the left - hand and right - hand screw (4).

2. The lens processing positioning fixture according to claim 1, characterized in that: The clamping member includes a clamping plate (10) and a connecting member. The fixed seat (7) is in a U - shape with a lower opening. The clamping plate (10) is connected to the top wall of the fixed seat (7) through the connecting member.

3. The positioning fixture for lens processing according to claim 2, characterized in that: Lifting holes adapted to the lower opening of the fixed seat (7) are provided on the clamping plate (10). Both sides of the lifting plate (9) penetrate through the lifting holes and the lower opening of the fixed seat (7).

4. A lens processing positioning fixture according to claim 3, characterized in that: The motor (3) is a servo motor.

5. The lens processing positioning fixture according to claim 4, characterized in that: The lifter (8) is a cylinder.

6. The positioning fixture for lens processing according to claim 5, wherein: The connecting member includes a connecting block (11), a fixed block (12), a spring (13) and a telescopic rod (14). The connecting block (11) is in a T - shape. Moving grooves are further provided on the left and right sides of the connecting block (11). The spring (13) and the telescopic rod (14) are arranged in the moving grooves. The spring (13) is sleeved on the telescopic rod (14). Both ends of the spring (13) and the telescopic rod (14) are respectively connected to the inner wall of the moving groove and one end of the fixed block (12). Fixed holes adapted to the fixed blocks (12) are provided on the left and right sides of the fixed seat (7).

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