Curvature scanning mechanism of lens edge grinding machine

Abstract

The invention provides a curvature scanning mechanism for a lens edge grinding machine, and relates to the technical field of lens edge grinding machines, the curvature scanning mechanism comprises a supporting assembly, a curvature collecting assembly, a driving assembly and an elastic force storage assembly, and the curvature collecting assembly, the driving assembly and the elastic force storage assembly are all arranged on the supporting assembly; the curvature collection assembly comprises a probe assembly and a collection assembly, the probe assembly is connected with the elastic force storage assembly and can abut against the edge of the to-be-detected lens under the action of the elastic force storage assembly, and the collection assembly is connected with the probe assembly and can collect the curvature of the to-be-detected lens through the swing action of the probe assembly; the driving assembly is connected with the elastic force storage assembly and is used for the elastic force storage assembly to store force, and the elastic force storage assembly can generate abutting force for the probe assembly to abut against the to-be-tested lens after storing the force; in the process of collecting the curvature, the probe stably abuts against the edge of the to-be-detected lens all the time, so that the stability of the collecting process is guaranteed, and the curvature collecting effect is remarkable.

Description

Technical Field

[0001] The invention relates to the technical field of lens edge grinding machines, and in particular to a curvature scanning mechanism of a lens edge grinding machine. Background Art

[0002] At present, the lens curvature scanning mechanism of domestic lens edge grinding machines generally uses the modeling method and the elastic pull rod traction probe to measure the curvature of the lens. Both methods have relatively large uncontrollability. Among them, the modeling method is prone to relative sliding during measurement, thus affecting the curvature collection effect, and when the elastic pull rod traction probe is used for measurement, the probe is easy to become loose or fall off, resulting in inaccurate measurement data or inability to measure. Summary of the invention

[0003] The purpose of the present invention is to provide a curvature scanning mechanism for a lens edger to solve the above-mentioned technical problems existing in the prior art; the preferred technical solution among the many technical solutions provided by the present invention can produce many technical effects; see the following description for details.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention provides a curvature scanning mechanism of a lens edger, comprising a support assembly, a curvature collection assembly, a drive assembly and an elastic force storage assembly, wherein the curvature collection assembly, the drive assembly and the elastic force storage assembly are all arranged on the support assembly, wherein: the curvature collection assembly comprises a probe assembly and a collection assembly, the probe assembly is connected to the elastic force storage assembly and can abut against the edge of a lens to be tested under the action of the elastic force storage assembly, the collection assembly is connected to the probe assembly and can collect the curvature of the lens to be tested through the swinging action of the probe assembly; the drive assembly is connected to the elastic force storage assembly and is used for the elastic force storage assembly to store force, and after the elastic force storage assembly stores force, it can generate abutment force for the probe assembly to abut against the lens to be tested.

[0006] Preferably, the probe assembly comprises a probe body, a probe bracket and a probe rod shaft, wherein: the probe body is arranged on the probe bracket to abut against the lens to be measured; the probe bracket is fixedly arranged on the probe rod shaft and rotates synchronously with the probe rod shaft; the probe rod shaft is rotatably arranged on the support assembly.

[0007] Preferably, a swing gear is fixedly provided on the probe rod shaft, and the swing gear rotates synchronously with the probe rod shaft; the collection component includes an encoder, and a collection gear is provided at the collection end of the encoder, and the collection gear is meshed with the swing gear.

[0008] Preferably, the collection component includes a mounting frame and a tension spring, wherein: the mounting frame is movably arranged on the supporting assembly, and the encoder is arranged on the mounting frame; the two ends of the tension spring are respectively connected to the supporting assembly and the mounting frame, and the tension spring can tighten the mounting frame to make the collection gear mesh with the swing gear.

[0009] Preferably, the support assembly includes a fixed sleeve, and the probe rod shaft is rotatably disposed in the fixed sleeve; the curvature acquisition assembly includes a waterproof sleeve assembly, and the waterproof sleeve assembly is sleeved on the outside of the fixed sleeve.

[0010] Preferably, the driving assembly includes a driving motor, a transmission assembly and an output shaft, wherein: the driving motor is arranged on the supporting assembly, the output end of the driving motor is connected to the output shaft through the transmission assembly, and the elastic force storage assembly is arranged on the output shaft; the driving motor can drive the output shaft to rotate through the transmission assembly, so that the elastic force storage assembly can store force.

[0011] Preferably, the elastic force storage assembly includes a torsion spring and a spring fixing seat, wherein: the spring fixing seat is sleeved on the output shaft; the torsion spring is arranged on the spring fixing seat; the rotation of the output shaft can drive the torsion spring and the spring fixing seat to rotate synchronously, so that the torsion spring stores force and generates an abutting force for the probe assembly to abut against the lens to be tested.

[0012] Preferably, the torsion spring is provided with a first abutment end and a second abutment end, and the swing gear is provided with an abutment member, and the abutment member is located between the first abutment end and the second abutment end; the driving motor rotates forward or reversely, so that the abutment member abuts and pushes the first abutment end or the second abutment end.

[0013] Preferably, the drive assembly includes a limit switch, which is arranged on the support assembly, and a trigger part is arranged on the output shaft at a position corresponding to the limit switch; when the output shaft rotates, the trigger part can trigger the limit switch to stop the drive motor.

[0014] Preferably, the support assembly includes a support frame, and the probe assembly, the collection assembly, the drive assembly and the elastic force storage assembly are all arranged on the support frame; the collection assembly, the drive assembly and the elastic force storage assembly are all located below the support frame.

[0015] The curvature scanning mechanism of a lens edge grinding machine provided by the present invention has at least the following beneficial effects:

[0016] The curvature scanning mechanism of the lens edger includes a support component, a curvature collection component, a drive component and an elastic force storage component. The curvature collection component, the drive component and the elastic force storage component are all arranged on the support component. The support component is used for the installation and support of the curvature collection component, the drive component and the elastic force storage component. The curvature collection component, the drive component and the elastic force storage component cooperate with each other for scanning, detecting and collecting the curvature of the lens.

[0017] The curvature collection component includes a probe component and a collection component. The probe component is connected to the elastic force storage component and can abut against the edge of the lens to be tested under the action of the elastic force storage component. The collection component is connected to the probe component, and the drive component is connected to the elastic force storage component. When collecting the curvature, the drive component acts to store force for the elastic force storage component. After the elastic force storage component stores force, an abutment force is generated, which acts on the probe component, so that the probe component can always abut against the edge of the lens to be tested. In this way, when the lens to be tested rotates, the probe component can swing adaptively according to the curvature of the lens to be tested, and the collection component collects the swinging action to realize the collection of the curvature. The entire collection process is stable and the information is collected accurately.

[0018] The present invention cooperates with each other through the curvature collection component, the driving component and the elastic force storage component. During the process of collecting the curvature, the probe always stably contacts the edge of the lens to be tested, the process is stable, and the curvature collection effect is significant. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of the present invention from one viewing angle;

[0021] Figure 2 It is a structural schematic diagram of another perspective of the present invention;

[0022] Figure 3 is an exploded schematic diagram of the probe assembly of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the probe assembly, the acquisition assembly and the drive assembly of the present invention;

[0024] Figure 5 is a schematic diagram of the structure of the drive assembly of the present invention;

[0025] Figure 6It is an enlarged view of the A part of the present invention.

[0026] Reference numerals

[0027] 1. Support assembly; 11. Support frame; 12. Fixing sleeve; 13. Motor bracket; 2. Curvature acquisition assembly; 21. Probe assembly; 211. Probe body; 212. Probe bracket; 213. Probe rod shaft; 214. Swinging gear; 215. Abutment; 22. Acquisition assembly; 221. Encoder; 2211. Acquisition gear; 222. Mounting frame; 223. Tension spring; 23. Waterproof sleeve assembly; 3. Drive assembly; 31. Drive motor; 32. Transmission assembly; 33. Output shaft; 331. Trigger unit; 34. Limit switch; 4. Elastic force storage assembly; 41. Torsion spring; 411. First abutment end; 412. Second abutment end; 42. Spring fixing seat. DETAILED DESCRIPTION

[0028] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0029] Embodiment 1:

[0030] The present invention provides a lens edger curvature scanning mechanism, referring to Figures 1 to 6 The curvature scanning mechanism of the lens edger includes a support component 1, a curvature collection component 2, a drive component 3 and an elastic force storage component 4, and the curvature collection component 2, the drive component 3 and the elastic force storage component 4 are all arranged on the support component 1.

[0031] The curvature collection component 2 includes a probe component 21 and a collection component 22. The probe component 21 is connected to the elastic force storage component 4 and can abut against the edge of the lens to be tested under the action of the elastic force storage component 4. The collection component 22 is connected to the probe component 21 and can collect the curvature of the lens to be tested through the swinging action of the probe component 21; the driving component 3 is connected to the elastic force storage component 4 and is used for the elastic force storage component 4 to store force.

[0032] When collecting curvature data, the driving component 3 starts to generate power, causing the elastic force storage component 4 to store force. After the elastic force storage component 4 stores force, it generates abutment force, which acts on the probe component 21, so that the probe component 21 abuts against the edge of the lens to be tested. In this way, when the lens to be tested rotates, the probe component 21 swings adaptively according to the change in the curvature of the lens to be tested. At the same time, the collection component 22 collects the curvature data of the lens to be tested through the swinging action of the probe component 21.

[0033] In the above process, the elastic force storage component 4 after storing force can provide a stable abutment force, so that the probe component 21 always abuts against the lens to be tested. The whole process is stable and reliable, which can effectively ensure the accuracy of the data collected in the bending section, and the collection effect is significant.

[0034] Embodiment 2:

[0035] Example 2 is based on Example 1:

[0036] like Figures 1 to 6 As shown, the probe assembly 21 includes a probe body 211 , a probe bracket 212 and a probe rod shaft 213 .

[0037] The probe bracket 212 is an upwardly inclined bracket with a certain curvature, one end of which is fixedly arranged at the top of the probe rod shaft 213, and the probe bracket 212 rotates synchronously with the probe rod shaft 213, and the other end is provided with a mounting groove, and the probe body 211 is installed in the mounting groove. The probe body 211 is a collection execution component, which is used to abut against the lens to be measured, and the probe rod shaft 213 is rotatably arranged on the support assembly 1;

[0038] The probe bracket 212 and the probe rod shaft 213 cooperate with each other and can effectively transmit the adaptive swinging motion of the probe body 211 , thereby ensuring the collection effect of the collection component 22 .

[0039] As an optional implementation, a swing gear 214 is fixedly provided at the bottom end of the probe rod shaft 213 , and the swing gear 214 rotates synchronously with the probe rod shaft 213 .

[0040] The collecting component 22 includes an encoder 221 . A collecting gear 2211 is disposed at the collecting end of the encoder 221 . The diameter of the collecting gear 2211 is smaller than the diameter of the swing gear 214 . The collecting gear 2211 is meshed with the swing gear 214 .

[0041] When the probe body 211 swings adaptively due to the change in the curvature of the lens to be tested, the probe bracket 212 and the probe rod shaft 213 swing synchronously, thereby driving the swing gear 214 to rotate, and the collection gear 2211 meshing with the swing gear 214 rotates, and the encoder 221 collects the curvature data based on the rotation data of the collection gear 2211, and the collection effect is significant.

[0042] As an optional implementation, the collection assembly 22 includes a mounting frame 222 and a tension spring 223 .

[0043] One end of the mounting frame 222 is rotatably disposed on the supporting assembly 1 , and the encoder 221 is disposed on the other end of the mounting frame 222 .

[0044] A first fixing member is disposed on the mounting frame 222 , a second fixing member is disposed on the supporting assembly 1 , and two ends of the tension spring 223 are respectively connected to the first fixing member and the second fixing member.

[0045] The tension spring 223 is always in a deformed state, so that the elastic force generated by it can tighten the mounting frame 222, so that the collection gear 2211 and the swing gear 214 are stably engaged, ensuring the transmission effect and further ensuring the data collection effect.

[0046] As an optional embodiment, the support assembly 1 includes a fixed sleeve 12 , and flange bearings are provided at both ends of the interior of the fixed sleeve 12 , and the probe rod shaft 213 is rotatably disposed in the fixed sleeve 12 through the flange bearings.

[0047] The provision of the fixing sleeve 12 can effectively ensure the rotation stability of the probe shaft 213 .

[0048] The curvature collecting component 2 comprises a waterproof sleeve component 23 , which is sleeved on the outside of the fixing sleeve 12 , and has a good waterproof effect.

[0049] As an optional implementation, the driving assembly 3 is an electric driving assembly, which includes a driving motor 31 , a transmission assembly 32 and an output shaft 33 .

[0050] The driving motor 31 is arranged on the supporting assembly 1 , the output end of the driving motor 31 is connected to the output shaft 33 through the transmission assembly 32 , and the elastic force storage assembly 4 is arranged on the output shaft 33 .

[0051] When the driving motor 31 is in operation, the transmission assembly 32 drives the output shaft 33 to rotate, and the output shaft 33 transmits the rotational power to the elastic force storage assembly 4. The elastic force storage assembly 4 stores force to convert kinetic energy into elastic potential energy, so as to provide a stable abutting force for the probe assembly 21.

[0052] The transmission assembly 32 adopts a gear transmission assembly, and the transmission process is stable and reliable. Furthermore, in order to make the structure more compact, the gear transmission assembly adopts a bevel gear assembly, including a first bevel gear and a second bevel gear. The first bevel gear is arranged at the output end of the drive motor 31, and the second bevel gear is arranged on the output shaft 33. The diameter of the first bevel gear is smaller than the diameter of the second bevel gear.

[0053] As an optional implementation, the elastic force storage assembly 4 includes a torsion spring 41 and a spring fixing seat 42 .

[0054] The spring fixing seat 42 is sleeved on the output shaft 33 , and the torsion spring 41 is arranged on the spring fixing seat 42 . The torsion spring 41 and the spring fixing seat 42 rotate synchronously with the output shaft 33 .

[0055] During the curvature collection process, the output shaft 33 rotates, driving the torsion spring 41 and the spring fixing seat 42 to rotate synchronously, so that the torsion spring 41 accumulates force to generate an abutting force for the probe assembly 21 to abut against the lens to be measured.

[0056] As an optional embodiment, the torsion spring 41 is provided with a first abutment end 411 and a second abutment end 412 , and an abutment member 215 is provided on the swing gear 214 . The abutment member 215 is configured as an abutment column, preferably a hexagonal prism, and the abutment member 215 is located between the first abutment end 411 and the second abutment end 412 .

[0057] In this way, the probe assembly 21 can be swung forward and backward, thereby collecting the curvature of the outer edge and inner edge of the lens to be tested, as follows:

[0058] When collecting the curvature of the outer edge of the lens to be tested, the driving motor 31 rotates forward, the output shaft 33 rotates forward, and the torsion spring 41 is driven to rotate synchronously. The first abutment end 411 abuts against the abutment member 215 and pushes the abutment member 215 to rotate forward until the probe assembly 21 rotates to the first position. At this time, the torsion spring 41 deforms and accumulates force. After that, the driving motor 31 stops, and the torsion spring 41 generates an elastic force to act on the abutment member 215. The abutment member 215 transmits the elastic force to the probe body 211 through the swing gear 214, the probe rod shaft 213 and the probe bracket 212. The probe body 211 generates an abutment force to stably abut against the outer edge of the lens to be tested, thereby completing the collection of the curvature of the outer edge.

[0059] When collecting the curvature of the inner edge of the lens to be tested, the driving motor 31 reverses, the output shaft 33 reverses, and the torsion spring 41 is driven to rotate synchronously. The second abutting end 412 abuts against the abutment 215 and pushes the abutment 215 to reverse until the probe assembly 21 rotates to the second position. At this time, the torsion spring 41 deforms and accumulates force. After that, the driving motor 31 stops, and the torsion spring 41 generates an elastic force acting on the abutment 215. The abutment 215 transmits the elastic force to the probe body 211 through the swing gear 214, the probe rod shaft 213 and the probe bracket 212. The probe body 211 generates an abutment force to stably abut against the inner edge of the lens to be tested, thereby completing the collection of the curvature of the inner edge.

[0060] As an optional embodiment, the drive assembly 3 includes a limit switch 34, which is arranged on the support assembly 1. The output shaft 33 includes a column and a wheel body integrally arranged on the column. A trigger portion 331 is arranged on the peripheral wall of the wheel body at a position corresponding to the limit switch 34. Specifically, the trigger portion 331 is a trigger groove.

[0061] When the output shaft 33 rotates to a certain angle, the spring piece of the limit switch 34 corresponds to and is inserted into the trigger slot, thereby stopping the driving motor 31 .

[0062] In order to ensure the triggering effect of the limit switch 34, the triggering slot is configured as an open slot, and its diameter increases gradually from the slot bottom to the slot opening.

[0063] As an optional embodiment, the support assembly 1 includes a support frame 11, the support frame 11 includes a support plate and a support foot arranged on the bottom side of the support plate, and the fixing sleeve 12 is fixedly arranged on the upper side of the support plate.

[0064] The probe assembly 21, the collection assembly 22, the drive assembly 3 and the elastic force storage assembly 4 are all arranged on the support frame 11, wherein the collection assembly 22, the drive assembly 3 and the elastic force storage assembly 4 are all located below the support plate.

[0065] Specifically, a motor bracket 13 is connected to the bottom side of the support frame 11 through three guide rods, and the driving motor 31 and the limit switch 34 are both installed on the motor bracket 13 .

[0066] In the description of the present application, it should be understood that the terms "upper", "lower", "inside", "outside", "top", "bottom", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0067] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "multiple" or "several" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0068] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0069] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A curvature scanning mechanism for a lens edger, characterized in that: It comprises a support assembly, a curvature collection assembly, a drive assembly and an elastic force storage assembly, wherein the curvature collection assembly, the drive assembly and the elastic force storage assembly are all arranged on the support assembly, wherein: The curvature acquisition component includes a probe component and a acquisition component. The probe component is connected to the elastic force storage component and can abut against the edge of the lens to be tested under the action of the elastic force storage component. The acquisition component is connected to the probe component and can acquire the curvature of the lens to be tested through the swinging action of the probe component. The driving component is connected to the elastic force storage component and is used for storing force in the elastic force storage component. After storing force, the elastic force storage component can generate abutting force for the probe component to abut against the lens to be tested.

2. The curvature scanning mechanism of the lens edger according to claim 1, characterized in that: The probe assembly comprises a probe body, a probe bracket and a probe rod shaft, wherein: The probe body is arranged on the probe bracket and is used to abut against the lens to be tested; The probe bracket is fixedly arranged on the probe rod shaft and rotates synchronously with the probe rod shaft; The probe rod shaft is rotatably arranged on the support assembly.

3. The curvature scanning mechanism of the lens edger according to claim 2, characterized in that: A swing gear is fixedly arranged on the probe shaft, and the swing gear rotates synchronously with the probe shaft; The collection component comprises an encoder, a collection end of the encoder is provided with a collection gear, and the collection gear is meshed with the swing gear.

4. The curvature scanning mechanism of the lens edger according to claim 3, characterized in that: The collection assembly includes a mounting frame and a tension spring, wherein: The mounting frame is movably arranged on the supporting assembly, and the encoder is arranged on the mounting frame; The two ends of the tension spring are respectively connected to the supporting assembly and the mounting frame, and the tension spring can tighten the mounting frame so that the collecting gear is meshed with the swing gear.

5. The curvature scanning mechanism of the lens edger according to claim 2, characterized in that: The support assembly includes a fixed sleeve, and the probe shaft is rotatably arranged in the fixed sleeve; The curvature collecting component comprises a waterproof sleeve component, and the waterproof sleeve component is sleeved on the outside of the fixing sleeve.

6. The curvature scanning mechanism of the lens edger according to claim 3, characterized in that: The driving assembly includes a driving motor, a transmission assembly and an output shaft, wherein: The driving motor is arranged on the supporting assembly, the output end of the driving motor is connected to the output shaft through the transmission assembly, and the elastic force storage assembly is arranged on the output shaft; The driving motor can drive the output shaft to rotate through the transmission assembly, so that the elastic force storage assembly can store force.

7. The curvature scanning mechanism of the lens edger according to claim 6, characterized in that: The elastic force storage component includes a torsion spring and a spring fixing seat, wherein: The spring fixing seat is sleeved on the output shaft; The torsion spring is arranged on the spring fixing seat; The rotation of the output shaft can drive the torsion spring and the spring fixing seat to rotate synchronously, so that the torsion spring accumulates force and generates an abutting force for the probe assembly to abut against the lens to be tested.

8. The curvature scanning mechanism of the lens edger according to claim 7, characterized in that: The torsion spring is provided with a first abutting end and a second abutting end, and the swing gear is provided with an abutting member, and the abutting member is located between the first abutting end and the second abutting end; The driving motor rotates forward or reversely to make the abutting member abut against and push the first abutting end or the second abutting end.

9. The curvature scanning mechanism of the lens edger according to claim 6, characterized in that: The driving assembly includes a limit switch, the limit switch is arranged on the supporting assembly, and a trigger part is arranged on the output shaft at a position corresponding to the limit switch; The output shaft rotates, so that the trigger unit can trigger the limit switch to stop the drive motor.

10. The curvature scanning mechanism of the lens edger according to claim 1, characterized in that: The support assembly comprises a support frame, and the probe assembly, the collection assembly, the drive assembly and the elastic force storage assembly are all arranged on the support frame; The collection assembly, the driving assembly and the elastic force storage assembly are all located below the support frame.

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