Lens grinding pressure head

Abstract

The utility model discloses a lens grinding pressure head, which belongs to the technical field of lens grinding and comprises a pressure head body, an abutting column is arranged at the bottom of the pressure head body, a mounting groove is formed in the bottom of the pressure head body around the periphery of the abutting column, a sliding groove is formed in the periphery of the inner wall of the mounting groove, and a clamping groove is formed in one side of the top end in the sliding groove. A clamping groove is formed in the bottom of the pressure head body, a sliding groove is formed in the clamping groove, a check block is arranged on the top wall of the communicating position of the clamping groove and the sliding groove, a clamp is arranged in the mounting groove, a columnar through groove is formed in the middle of the clamp, and clamping blocks are arranged on the periphery of the top end of the outer portion of the clamp. According to the pressure head, the clamp is fixedly mounted in a clamping manner, and the lifting ring is matched with the check block to block the communication part of the sliding groove and the clamping groove, so that the situation that the clamp rotates relative to the pressure head body in the rotating process of the pressure head body is avoided, and the stability of the clamp after mounting is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of lens grinding and processing technology, and specifically relates to a lens grinding and processing pressure head. Background Technology

[0002] Traditional lens grinding equipment typically includes a pressure head that presses against a fixture holding the lens during operation, causing the other side of the lens to adhere tightly to the grinding wheel surface for grinding. In this design, the pressure head, fixture, and lens are separate, requiring the operator to precisely place the lens in the fixture and align the fixture under the pressure head.

[0003] According to patent number CN202420703096.7, a pressure head assembly for lens grinding is disclosed, specifically relating to a pressure head assembly for lens grinding. The solution of this application has a column at the lower end of the pressure head, and the bottom end of the column is recessed inward to form a circular groove for placing a lens. A rubber ring is disposed within the circular groove, and the inner diameter of the circular groove matches the outer diameter of the lens to be placed. The rubber ring is used to contact and engage with the lens placed within the circular groove.

[0004] The above technical solution still has certain technical defects in actual use. Since the pressure head is fixedly connected to the fixture with a stud, although the locking bolt abuts the stud to achieve a certain positioning effect, in actual use, due to the rapid rotation of the pressure head, the locking bolt is difficult to achieve a stable positioning effect, which causes the fixture and the pressure head to rotate, thus affecting the pressing of the lens, causing the contact between the lens and the grinding tool to loosen and reducing the grinding efficiency. Therefore, we propose a pressure head for lens grinding. Utility Model Content

[0005] The purpose of this invention is to provide a pressure head for lens grinding to solve the existing problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pressure head for lens grinding, comprising a pressure head body, a sliding groove, a retaining groove, and a retaining block. A stop post is fixedly installed at the center of the bottom of the pressure head body. An installation groove is formed around the outer periphery of the stop post at the bottom of the pressure head body. A sliding groove is vertically formed on the inner wall surface of the inner periphery of the installation groove. A retaining groove is formed on one side of the top of the inner periphery of the sliding groove. The top of the retaining groove is connected to the top of the sliding groove. A stop block is slidably provided on the top wall at the connection between the retaining groove and the sliding groove. A clamp is provided inside the installation groove. A columnar through groove is formed in the middle of the clamp. A retaining block is fixedly installed around the outer top periphery of the clamp. The retaining block and the clamp are an integral structure.

[0007] Preferably, a lifting ring is slidably provided at the outer middle of the pressure head body, and the stop block is fixedly installed around the inner wall of the lifting ring. A rectangular groove is provided around the outer middle of the pressure head body, and the stop block extends through the rectangular groove to the connection between the slot and the slide groove and slides slidably connected to its inner wall.

[0008] Preferably, the bottom of the abutment is connected to a rubber pressure plate via a corrugated rubber sleeve, and the two ends of the corrugated rubber sleeve are fixedly connected to the bottom of the abutment and the top of the rubber pressure plate by adhesive bonding.

[0009] Preferably, a compression spring is fixedly installed inside the corrugated rubber sleeve, and the two ends of the compression spring are fixedly connected to the abutment and the rubber pressure plate, respectively.

[0010] Preferably, a return spring is provided on the top of the stop block, and the top and bottom of the return spring are fixedly connected to the inner side of the top wall at the connection between the slot and the slide groove and the top of the stop block, respectively.

[0011] Preferably, a shrinkage groove is provided at the bottom center of the abutment, and a limiting post is provided at the top center of the rubber pressure plate. The limiting post extends into the interior of the shrinkage groove and is slidably connected to its inner wall.

[0012] Preferably, a rubber ring is provided at the bottom of the inner side of the clamp, and the outer periphery of the rubber ring is fixedly installed inside the inner wall of the clamp by inlay.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By opening an installation groove at the bottom of the pressure head body, and opening interconnected sliding grooves and slots inside it, and cooperating with the snap-fit ​​blocks on the outer periphery of the fixture, the fixture is fixedly installed by snap-fit. The connection between the sliding groove and the slot is sealed by the lifting ring and the stop block, thereby ensuring the stability of the snap-fit ​​block placed inside the slot. This prevents the fixture from rotating relative to the pressure head body during rotation, and greatly improves the stability of the fixture after installation.

[0015] 2. By setting a stop post in the mounting groove at the bottom of the pressure head body, and setting a corrugated rubber sleeve, a clamping spring and a rubber pressure plate at its bottom, the lens in the fixture is clamped to maintain its stability. At the same time, when the lens contacts the grinding tool, it can provide a certain buffering force for the lens to ensure the tightness of the contact between the two, thereby improving the grinding efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2This is a schematic diagram of the bottom structure of the pressure head of this utility model;

[0018] Figure 3 This is a schematic diagram of the rectangular groove structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the lifting ring structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the support column of this utility model.

[0021] In the diagram: 1. Pressure head body; 2. Slide groove; 3. Slot; 4. Stop block; 5. Lifting ring; 6. Return spring; 7. Rectangular groove; 8. Abutment; 9. Rubber pressure plate; 10. Corrugated rubber sleeve; 11. Compression spring; 12. Shrinkage groove; 13. Limiting post; 14. Clamp; 15. Snap-fit ​​block; 16. Rubber ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 This utility model provides a technical solution for a pressure head in lens grinding: it includes a pressure head body 1, a sliding groove 2, a locking groove 3, and a locking block 15. A support post 8 is fixedly installed at the center of the bottom of the pressure head body 1. An installation groove is formed around the outer periphery of the support post 8 at the bottom of the pressure head body 1. A sliding groove 2 is vertically formed on the inner wall surface of the inner periphery of the installation groove. A locking groove 3 is formed on one side of the top of the inner periphery of the sliding groove 2. The top of the locking groove 3 is connected to the top of the sliding groove 2. A stop block 4 is slidably set on the top wall at the connection between the locking groove 3 and the sliding groove 2. A clamp 14 is set inside the installation groove. A columnar through groove is formed in the middle of the clamp 14. A locking block 15 is fixedly installed around the outer top periphery of the clamp 14. The locking block 15 and the clamp 14 are an integral structure.

[0024] Specifically, a lifting ring 5 is slidably provided at the outer middle of the pressure head body 1, and a stop block 4 is fixedly installed around the inner wall of the lifting ring 5. A rectangular groove 7 is provided around the outer middle of the pressure head body 1, and the stop block 4 extends through the rectangular groove 7 to the connection between the slot 3 and the slide groove 2 and slides in connection with its inner wall.

[0025] Specifically, the bottom of the abutment 8 is connected to a rubber pressure plate 9 via a corrugated rubber sleeve 10, and the two ends of the corrugated rubber sleeve 10 are fixedly connected to the bottom of the abutment 8 and the top of the rubber pressure plate 9 respectively by adhesive bonding.

[0026] Specifically, a compression spring 11 is fixedly installed inside the corrugated rubber sleeve 10, and the two ends of the compression spring 11 are fixedly connected to the abutment 8 and the rubber pressure plate 9, respectively.

[0027] Specifically, a return spring 6 is provided on the top of the stop block 4. The top and bottom of the return spring 6 are fixedly connected to the inner side of the top wall of the connection between the slot 3 and the slide 2 and the top of the stop block 4, respectively.

[0028] Specifically, a shrinkage groove 12 is provided at the bottom center of the support column 8, and a limiting post 13 is provided at the top center of the rubber pressure plate 9. The limiting post 13 extends into the interior of the shrinkage groove 12 and is slidably connected to its inner wall.

[0029] Specifically, a rubber ring 16 is provided at the bottom of the inner side of the clamp 14, and the outer periphery of the rubber ring 16 is fixedly installed inside the inner wall of the clamp 14 by inlay.

[0030] In this embodiment, after the lens to be ground is placed inside the clamp 14, its outer periphery is supported by the rubber ring 16. Then, the locking block 15 on the outer periphery of the clamp 14 is aligned with and inserted into the slide groove 2, so that the locking block 15 moves along the trajectory of the slide groove 2 to its top. Then, the lifting ring 5 is pushed upward, causing it to move the stop block 4 into the upper wall of the connection between the slide groove 2 and the slot 3, thereby connecting the slide groove 2 and the slot 3. Then, the clamp 14 is rotated, causing it to rotate the locking block 15 into the slot 3. The lifting ring 5 is released, and under the action of the return spring 6, the stop block 4 is pushed downward. The connection between the slide groove 2 and the slot 3 is blocked to achieve the purpose of snap-fit ​​positioning, ensuring the stability of the snap-fit ​​between the clamp 14 and the pressure head body 1, so that the clamp 14 can stably follow the rotation of the pressure head body 1, avoiding the situation where the two rotate relative to each other during the grinding process. After the clamp 14 is installed, the rubber pressure plate 9 at the bottom of the abutment 8 contacts the top surface of the lens, and under the action of the compression spring 11, pushes the rubber pressure plate 9 to apply pressure to the top surface of the lens, so that it can be fixed inside the clamp 14, ensuring the stability of the lens during the grinding process.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lens grinding and polishing pressure head, comprising a pressure head body (1), a sliding groove (2), a clamping groove (3) and a clamping block (15), characterized in that: The bottom center position of the pressure head body (1) is fixedly installed with a resisting column (8), a mounting groove is opened around the outer periphery of the resisting column (8) of the bottom of the pressure head body (1), a sliding groove (2) is vertically opened on the inner wall surface of the four around the inside of the mounting groove, a clamping groove (3) is opened on the inside top end side of the sliding groove (2), the top of the clamping groove (3) and the top of the sliding groove (2) are in communication with each other, a stop block (4) is slidably arranged on the top wall of the communication of the clamping groove (3) and the sliding groove (2), a clamp (14) is arranged in the inside of the mounting groove, a column-shaped through groove is opened in the middle of the clamp (14), a clamping block (15) is fixedly installed on the outside top end four around of the clamp (14), and the clamping block (15) and the clamp (14) are of an integral structure.

2. A lens lapping pressure head according to claim 1, wherein: The outside middle end of the pressure head body (1) is slidably provided with a lifting ring (5), the stop block (4) is fixedly installed on the inner wall four around of the lifting ring (5), a rectangular groove (7) is opened on the outside middle end four around of the pressure head body (1), the stop block (4) extends through the rectangular groove (7) to the communication of the clamping groove (3) and the sliding groove (2) and is slidably connected with the inner wall thereof.

3. A lens lapping pressure head according to claim 1 wherein: The bottom of the resisting column (8) is connected with a rubber pressing plate (9) through a corrugated rubber sleeve (10), and the two ends of the corrugated rubber sleeve (10) are fixedly connected with the bottom of the resisting column (8) and the top of the rubber pressing plate (9) respectively by gluing.

4. A lens lapping pressure head according to claim 3, wherein: The inside of the corrugated rubber sleeve (10) is fixedly installed with a compression spring (11), and the two ends of the compression spring (11) are fixedly connected with the resisting column (8) and the rubber pressing plate (9) respectively.

5. The lens lapping pressure head of claim 1, wherein: The top of the stop block (4) is provided with a return spring (6), and the top and the bottom of the return spring (6) are fixedly connected with the inner side of the top wall of the communication of the clamping groove (3) and the sliding groove (2) and the top of the stop block (4) respectively.

6. A lens lapping pressure head according to claim 3, wherein: The bottom center position of the resisting column (8) is opened with a contraction groove (12), the top center position of the rubber pressing plate (9) is provided with a limiting column (13), the limiting column (13) extends to the inside of the contraction groove (12) and is slidably connected with the inner wall thereof.

7. The lens lapping pressure head of claim 1, wherein: The inside bottom end of the clamp (14) is provided with a rubber ring (16), and the outer periphery of the rubber ring (16) is fixedly installed on the inner wall of the clamp (14) by inlaying.

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