A centering edger real-time thickness measuring clamping and rotating driving assembly

Abstract

This utility model discloses a real-time thickness measuring clamping and rotating drive assembly for a centering edge grinding machine. It includes an upper clamping member and a lower clamping member mounted on a support member. Each of the upper and lower clamping members has a clamping head at its opposite end. The upper clamping member can vertically displace to cooperate with the lower clamping member and the clamping heads in clamping a lens. The upper and lower clamping members are driven by a drive member mounted on the support member to rotate the lens. The upper clamping member is equipped with a thickness measuring component that measures the amount of movement of the upper clamping member towards the lower clamping member to determine the thickness parameters of the lens clamped by the upper and lower clamping members. This solves the problem that existing lens processing requires a secondary measurement before processing, which affects the efficiency of high-quality lens processing.

Description

Technical Field

[0001] This utility model relates to the field of lens processing technology, specifically to a real-time thickness measurement clamping rotation drive assembly for a centering edge grinding machine. Background Technology

[0002] In the field of modern optical manufacturing, lenses are core optical components in key areas such as medical imaging equipment, aerospace precision instruments, and high-end photographic lenses. The processing precision of lenses directly affects the imaging quality and performance of optical systems. The lens centering and edging process must ensure that the optical center and mechanical axis are precisely aligned, and that the edge dimensions strictly meet design requirements. This places extremely high demands on the precision of the core components of the equipment and the level of automation.

[0003] Currently, the processing flow of lens centering and edging machines mainly relies on a "pre-measurement - classification processing" model. Before production, operators need to use calipers, micrometers, or dedicated thickness gauges to measure the thickness of each lens blank individually, and then input the parameters into the edging machine control system after classifying the data. However, even with strict classification, lenses of similar dimensions within the same batch still exhibit dimensional fluctuations of ±0.05mm to ±0.1mm. These minute differences can significantly affect the centering accuracy and edge curvature of the lenses. Furthermore, traditional edging machines often employ a separate design for the clamping and rotating components, making it impossible to adaptively adjust the clamping force. This can easily lead to eccentric vibration during rotation, further exacerbating processing errors.

[0004] To ensure product quality, a second thickness measurement is required after the lens is clamped in actual production, and parameters such as the feed depth and grinding pressure of the grinding tool need to be readjusted. This not only extends the production time of a single batch of lenses, but also introduces the risk of human error due to increased manual operation. Utility Model Content

[0005] The purpose of this invention is to solve the problem that existing lenses require a second measurement before processing, which affects the efficiency of high-quality lens processing, and to provide a real-time thickness measurement clamping rotation drive component for a centering edge grinding machine.

[0006] To address the shortcomings of the aforementioned technical problems, the present invention adopts the following technical solution: a real-time thickness measuring clamping rotation drive assembly for a centering edge grinding machine, comprising an upper clamping member and a lower clamping member mounted on a support member. Each of the upper and lower clamping members has a clamping head at its opposite end. The upper clamping member can vertically displace to cooperate with the lower clamping member and the clamping head in clamping a lens. The upper and lower clamping members are driven by a drive member mounted on the support member to rotate the lens. The upper clamping member is equipped with a thickness measuring component, which measures the amount of movement of the upper clamping member towards the lower clamping member to determine the thickness parameters of the lens clamped by the upper and lower clamping members.

[0007] The thickness measuring component includes a displacement sensor mounted on the upper clamping member and moving with the upper clamping member. The displacement sensor cooperates with a reference plate mounted on the support member. The reference plate is set corresponding to the clamping end of the lower clamping member to improve the measurement accuracy of the displacement sensor.

[0008] As a further optimization of the real-time thickness measuring clamping rotation drive assembly of the centering edge grinding machine of this utility model: the upper clamping member includes a clamping shaft connected to the clamping head, the clamping shaft is rotatably mounted on the carrier plate, and a plurality of slide seats are provided on the side of the carrier plate away from the clamping shaft, the slide seats slidingly engaging with the slide rails provided on the support member.

[0009] As a further optimization of the real-time thickness measurement clamping rotation drive assembly of the centering edge grinding machine of this utility model: the displacement sensor is connected to the buffer seat through the connecting block, the buffer seat is connected to the upper clamping member, and the buffer seat is provided with a damper that can cooperate with the reference plate to reduce the amount of vibration.

[0010] As a further optimization of the real-time thickness measuring clamping rotation drive assembly of the centering edge grinding machine of this utility model: the buffer is a spring or a damping element.

[0011] As a further optimization of the real-time thickness measurement clamping rotation drive assembly of the centering edge grinding machine of this utility model: the displacement sensor includes two types, which are connected to the reference plate in either contact or non-contact manner.

[0012] As a further optimization of the real-time thickness measurement clamping rotation drive assembly of the centering edge grinding machine of this utility model: the support includes a support base and a processing bracket located at the center of the upper side of the support base. The processing bracket has an upper clamping member and a lower clamping member on both sides in the width direction.

[0013] As a further optimization of the real-time thickness measuring clamping rotation drive component of the centering edge grinding machine of this utility model: the outer periphery of the support base is covered with a baffle, and the support base is provided with a collection groove at each of the two work positions, and the collection groove is provided with a discharge hole for discharging waste into the support base.

[0014] As a further optimization of the real-time thickness measurement clamping rotation drive assembly of the centering edge grinding machine of this utility model: the processing bracket is provided with protective covers at both the upper clamping part and the lower clamping part.

[0015] As a further optimization of the real-time thickness measuring clamping rotation drive assembly of the centering edge grinding machine of this utility model: the drive component includes a drive motor and a transmission shaft mounted on the support component. The two ends of the transmission shaft are respectively provided with a first gear and a second gear. The first gear and the second gear mesh with the driven gear and the synchronous gear respectively. The synchronous gear drives the lower clamping component to rotate, and the driven gear drives the upper clamping component to rotate. The first gear meshes with the drive gear on the output shaft of the drive motor.

[0016] As a further optimization of the real-time thickness measuring clamping rotation drive assembly of the centering edge grinding machine of this utility model: the upper clamping member and the lower clamping member are arranged vertically or horizontally.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention utilizes a displacement sensor that moves with the loading plate and works in conjunction with a reference plate on the corresponding lower clamping head. By precisely measuring the vertical displacement of the clamping shaft, the thickness of the lens can be accurately determined. Furthermore, the displacement sensor is mounted on the support, eliminating the need for repeated disassembly and allowing direct connection to the corresponding CNC system for parameter setting. This eliminates the need for a secondary lens thickness measurement step, significantly improving lens processing efficiency.

[0019] Furthermore, this invention eliminates the need for a second measurement of lens thickness by setting a displacement sensor connected to a corresponding CNC system for parameter setting. This effectively reduces the probability of over-grinding of the grinding components, thus reducing the frequent wear and tear on the grinding components and consequently lowering lens processing costs to some extent. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the axial side structure of this utility model;

[0021] Figure 2 This is a partial axial side view of the present invention;

[0022] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0023] The diagram shows the following components: 1. Support component; 101. Support base; 102. Baffle; 103. Collection groove; 104. Protective cover; 105. Processing bracket; 2. Lower clamping component; 3. Clamping head; 4. Upper clamping component; 401. Connecting head; 402. Slide; 403. Carrying plate; 404. Slide rail; 405. Clamping shaft; 5. Driving component; 501. Drive motor; 502. Drive gear; 503. First gear; 504. Transmission shaft; 505. Second gear; 506. Driven gear; 507. Synchronizing gear; 6. Thickness measuring assembly; 601. Buffer seat; 602. Buffer; 603. Connecting block; 604. Displacement sensor; 605. Reference plate. Detailed Implementation

[0024] To better understand this utility model, the following embodiments further illustrate the content of this utility model, but the content of this utility model is not limited to the following embodiments.

[0025] like Figure 1 and Figure 2As shown, a real-time thickness measuring clamping rotary drive assembly for a centering edge grinding machine includes a support member 1. An upper clamping member 4 and a lower clamping member 2 are located at the upper position of the support member 1, both of which can be driven synchronously by a drive member 5. Clamping heads 3 are connected to the opposite ends of both the upper clamping member 4 and the lower clamping member 2, and these two clamping heads 3 can clamp and position the lens while the lower clamping member 2 is fixed and the upper clamping member 4 is moving. Furthermore, a thickness measuring component 6 is also equipped on the upper clamping member 4, which determines the thickness of the lens while clamping it by measuring the amount of movement of the upper clamping member 4. Subsequently, using preset programming software and a CNC system, the grinding component on the support member 1 is controlled to grind the lens according to the corresponding parameters.

[0026] The clamping head 3 and the clamping shaft 405 included in the upper clamping member 4 and the opposite ends of the lower clamping member 2 are connected by threads. The lower clamping member 2 is mounted on the support base 101 of the support member 1, and the clamping shaft 405 is rotatably mounted on the carrier plate 403. The carrier plate 403 has multiple slides 402 on the side opposite to the clamping shaft 405. The slides 402 slide on the slide rail 404, which is fixed to the processing bracket 105 of the support member 1. The processing bracket 105 has processing positions on both sides, that is, the upper clamping member 4 and the lower clamping member 2 are provided on both sides of the processing bracket 105. The two processing positions are provided with protective covers 104. The protective covers 104 allow the upper clamping head 3 and the lower clamping head 3 to pass through, and at the same time restrict the particles falling out during the grinding process of the grinding assembly, thereby protecting the workers. The top of the clamping shaft 405 is connected to a connector 401 via a thread. The connector 401 can be connected to a linear cylinder or linear electric push rod, etc., to drive the clamping shaft 405 to achieve stable vertical displacement with the cooperation of the carrier plate 403, slide rail 404 and slide block 402. This allows the lower clamping head 3 to clamp and position the lens, and the lens to rotate under the drive of the drive component 5, so as to cooperate with the grinding assembly to perform high-quality grinding operation.

[0027] A thickness measuring component 6 is provided on the carrier plate 403, which includes a reference plate 605 and a displacement sensor 604. With the assistance of the reference plate 605, the displacement sensor 604 accurately measures the downward movement of the clamping shaft 405. When the clamping head 3 connected to the clamping shaft 405 presses against the lens, the CNC system controls the drive device to stop moving, and the displacement sensor 604 transmits the data to the CNC system as basic parameters. Based on this, the CNC system controls the operation of the grinding component to perform high-precision grinding on the lens. The displacement sensor 604 is connected to the buffer seat 601 via a connecting block 603. The buffer seat 601 contains a buffer 602, such as a spring or damping element, to reduce vibration during the vertical displacement of the carrier plate 403, ensuring that the clamping head 3 stably clamps the lens and reducing the risk of the lens being broken. Specifically, the displacement sensor 604 can be a contact type or a non-contact type with the reference plate 605, such as an inductive displacement sensor 604, a potentiometer-type displacement sensor 604, or an infrared displacement sensor 604.

[0028] The grinding assembly, the upper clamping head 3, and the drive device connected to the displacement sensor 604 are all controlled by a CNC system. The motion accuracy of the system is ±1μm, and its model and motion mode are existing technologies.

[0029] like Figure 2 As shown, the driving component 5 includes a drive motor 501 mounted on the processing bracket 105. A drive gear 502 is fixed on the motor output shaft, which drives a first gear 503. The first gear 503 rotates synchronously with a second gear 505 via a transmission shaft 504. The first gear 503 and the second gear 505 mesh with the driven gear 506 and the synchronous gear 507 of the drive clamping shaft 405 and the drive lower clamping component 2, respectively. When the drive motor 501 rotates, the clamping shaft 405 and the lower clamping component 2 drive the clamping head 3 and the clamped lens to rotate stably and at high speed, so as to cooperate with the grinding parts controlled by the CNC system to perform the lens grinding process.

[0030] The support base 101 is enclosed by multiple baffles 102 around its outer perimeter. Collection grooves 103 are provided at both processing positions, corresponding to the two sets of upper clamping members 4 and lower clamping members 2, to collect waste chips generated during the trimming of the clamping head 3 and lens grinding, reducing the environmental impact of the waste chips. The bottom of the collection grooves 103 has discharge holes to guide the debris into the support base 101 for easy centralized handling by operators.

[0031] Based on the above principle, the upper clamping part 4 and the lower clamping part 2 can be set vertically or horizontally, so that the lens centering and edging machine is suitable for vertical or horizontal structures. That is, the trimming part can be installed on the grinding disc protective cover of the vertical or horizontal lens centering and edging machine.

[0032] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this utility model.

Claims

1. A real-time thickness measuring clamping rotation drive assembly for a centering edge grinding machine, comprising an upper clamping member (4) and a lower clamping member (2) disposed on a support member (1), wherein clamping heads (3) are provided at opposite ends of the upper clamping member (4) and the lower clamping member (2), and the upper clamping member (4) can be vertically displaced to cooperate with the lower clamping member (2) and the clamping heads (3) to clamp a lens, wherein the upper clamping member (4) and the lower clamping member (2) are driven by a drive member (5) disposed on the support member (1) to rotate the lens, characterized in that: The upper clamping member (4) is provided with a thickness measuring component (6), which can measure the amount of movement of the upper clamping member (4) towards the lower clamping member (2) to determine the thickness parameters of the lens held by the upper clamping member (4) and the lower clamping member (2). The thickness measuring component (6) includes a displacement sensor (604) disposed on the upper clamping member (4) and displaced with the upper clamping member (4). The displacement sensor (604) cooperates with a reference plate (605) disposed on the support member (1). The reference plate (605) is disposed corresponding to the clamping end of the lower clamping member (2) to improve the measurement accuracy of the displacement sensor (604).

2. The real-time thickness measuring clamping rotation drive assembly for a centering edge grinding machine as described in claim 1, characterized in that: The upper clamping member (4) includes a clamping shaft (405) connected to the clamping head (3). The clamping shaft (405) is rotatably mounted on the carrying plate (403). A plurality of slides (402) are provided on the side of the carrying plate (403) away from the clamping shaft (405). The slides (402) are slidably engaged with the slide rails (404) provided on the support member (1).

3. The real-time thickness measuring clamping rotation drive assembly for a centering edge grinding machine as described in claim 1, characterized in that: The displacement sensor (604) is connected to the buffer seat (601) via the connecting block (603). The buffer seat (601) is connected to the upper clamping member (4), and the buffer seat (601) is provided with a buffer (602) that can cooperate with the reference plate (605) to reduce the amount of vibration.

4. The real-time thickness measuring clamping rotation drive assembly for a centering edge grinding machine as described in claim 3, characterized in that: The buffer (602) is a spring or a damping element.

5. The real-time thickness measuring clamping rotation drive assembly for a centering edge grinding machine as described in claim 1, characterized in that: The displacement sensor (604) includes two types of connections to the reference plate (605): contact type and non-contact type.

6. The real-time thickness measuring clamping rotation drive assembly for a centering edge grinding machine as described in claim 1, characterized in that: The support member (1) includes a support base (101) and a processing bracket (105) located at the center of the upper side of the support base (101). The processing bracket (105) has an upper clamping member (4) and a lower clamping member (2) on both sides in the width direction.

7. The real-time thickness measuring clamping rotation drive assembly for a centering edge grinding machine as described in claim 6, characterized in that: The outer periphery of the support base (101) is covered with a baffle (102). The support base (101) is provided with a collection groove (103) at each of the two workstations, and the collection groove (103) is provided with a discharge hole for discharging waste into the support base (101).

8. The real-time thickness measuring clamping rotation drive assembly for a centering edge grinding machine as described in claim 6, characterized in that: The processing bracket (105) is provided with protective covers (104) at the upper clamping member (4) and the lower clamping member (2).

9. The real-time thickness measuring clamping rotation drive assembly for a centering edge grinding machine as described in claim 1, characterized in that: The driving component (5) includes a drive motor (501) mounted on the support (1) and a transmission shaft (504). The two ends of the transmission shaft (504) are respectively provided with a first gear (503) and a second gear (505). The first gear (503) and the second gear (505) mesh with the driven gear (506) and the synchronous gear (507) respectively. The synchronous gear (507) drives the lower clamping component (2) to rotate, and the driven gear (506) drives the upper clamping component (4) to rotate. The first gear (503) meshes with the drive gear (502) mounted on the output shaft of the drive motor (501).

10. The real-time thickness measuring clamping rotation drive assembly for a centering edge grinding machine as described in claim 1, characterized in that: The upper clamping member (4) and the lower clamping member (2) are arranged vertically or horizontally.

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