Off-axis glass lens detection tool
By designing an off-axis glass lens inspection fixture, the lens size can be initially determined using a contoured bonding surface and positioning blocks. This solves the problem of inaccurate inspection in existing technologies and enables rapid screening and efficient production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2026-03-24
AI Technical Summary
In the existing technology, the inspection of off-axis glass lenses mainly relies on actual assembly, which makes it impossible to accurately determine the quality of the product during the cutting process. This results in extended processing time, increased costs, slow three-coordinate probe inspection speed, and inconvenient lens replacement.
Design an off-axis glass lens inspection fixture, including a base and a fixture end. The fixture end is provided with a contour-fitting surface and a positioning block. The lens size is initially determined by contacting the lens through the contour-fitting surface. The clearance groove is used for three-coordinate probe inspection to quickly screen out defective products.
It enables rapid and accurate preliminary detection of lens dimensions, reducing production costs and the risk of project delays, while improving processing efficiency.
Smart Images

Figure CN224034624U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of glass lens testing technology, and in particular to an off-axis glass lens testing fixture. Background Technology
[0002] Currently, the testing of off-axis glass lenses in the market mainly relies on actual assembly. It is impossible to accurately determine whether the cut product is good during the cutting process, which leads to the need to continuously extend the overall processing time through repeated debugging. This increases the verification cost and extends the project schedule. Although a coordinate measuring machine can be used for accurate testing, such equipment is slow to perform a single test, and lens replacement is also quite troublesome.
[0003] To address the aforementioned issues, we propose a method for rapid preliminary inspection of glass lenses to determine whether their dimensions are significantly too large or too small. This method allows qualified glass lenses to undergo further coordinate measuring machine (CMM) testing, reducing the workload required for precise inspection. It also facilitates equipment debugging during the processing of the same batch of glass lenses.
[0004] To address this, an off-axis glass lens testing fixture is proposed. Utility Model Content
[0005] The purpose of this invention is to provide an off-axis glass lens inspection fixture that can solve the problems of existing glass lens inspection, which mainly relies on actual assembly and cannot accurately determine whether the cut product is good during the cutting process. This results in the overall processing time needing to be continuously extended through repeated debugging, increasing verification costs and extending project schedule. Although a three-coordinate probe can be used for accurate inspection, such equipment has a slow single inspection speed and lens replacement is also relatively troublesome.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an off-axis glass lens testing fixture, comprising a base and a fixture end, wherein the fixture end is disposed on the top of the base and is integrally formed;
[0007] The tooling end includes a vertical part, the top of which is provided with a contoured fitting surface. The top of the tooling end is provided with two positioning blocks, which are located on both sides of the contoured fitting surface. The top of the vertical part is provided with an outer diameter positioning bearing surface, and an anti-cavity groove is opened on the inner side of the outer diameter positioning bearing surface.
[0008] Preferably, a pressure plate is fixedly connected to the top of the base, a pressure spring is fixedly connected to the rear side of the pressure plate, a pressure claw is fixedly connected to the rear side of the pressure spring, and the side of the pressure claw near the tooling end contacts the tooling end.
[0009] Preferably, the top of the base is fixedly connected with a clamping plate, the inner side of the clamping plate is threadedly connected with an adjusting bolt, and the front side of the adjusting bolt is fixedly connected with a clamping frame.
[0010] Preferably, the inner side of the clamping frame is rotatably connected with a fixed wheel, the front side of the fixed wheel is in contact with the tool end, the rear side of the pressing plate is fixedly connected with a telescopic rod, the telescopic rod is arranged on the inner side of the pressing spring, and the side of the telescopic rod close to the pressing claw is fixedly connected with the pressing claw.
[0011] Preferably, the bottom of the base is fixedly connected with a telescopic cylinder, the telescopic end of the telescopic cylinder is fixedly connected with an adjusting disc, and the bottom of the base is fixedly connected with a support.
[0012] Preferably, the top of the base is fixedly connected with an elevated frame, the inner side of the elevated frame is rotatably connected with a lever, and the inner side of the lever is rotatably connected with a picking needle.
[0013] Preferably, the inner side of the profiled surface is provided with a picking groove, and the picking groove is used in cooperation with the picking needle.
[0014] Preferably, the outer side of the picking needle is rotatably connected with a torsional spring, and the side, away from the picking needle, of the torsional spring is fixedly connected with the lever.
[0015] Preferably, the outer side of the adjusting disc is rotatably connected with a pull rod, and the top of the pull rod is rotatably connected with the lever.
[0016] Compared with the prior art, the off-axis glass lens detection tool has the following beneficial effects:
[0017] In use, the cut off-axis lens can be directly placed into the tool end of the detection tool, the bottom of the off-axis lens is in contact with the profiled surface, the two sides of the off-axis lens are in contact with the two positioning blocks respectively, and the outer arc part is in abutment against the outer edge of the outer diameter positioning abutting surface. At this time, it can be determined that, if the off-axis lens can be easily placed and shaken, the size processing is too small, and if the off-axis lens cannot be placed, the processing size is too large, and the processing technology needs to be adjusted again. After the preliminary screening is completed, the three-coordinate probe detection is performed, the size specification of the cut off-axis glass lens can be quickly and accurately detected, the problem that the trial assembly is found to be poor and rework manufacturing is avoided, the production manufacturing cost is reduced, and the production and processing efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is an overall structural view of the off-axis glass lens detection tool.
[0019] Figure 2 It is a bottom view of the main body structure.
[0020] Figure 3 It is a structural view of the tool end.
[0021] Figure 4 It is the top view of the tool end of the utility model;
[0022] Figure 5 It is the left view of the tool end of the utility model;
[0023] Figure 6 It is the structure schematic view of the pick needle of the utility model.
[0024] In the figure, 1, base; 2, tool end; 21, vertical part; 22, profiled surface; 23, positioning block; 24, outer diameter positioning bearing surface; 25, clearance groove; 3, pressing plate; 4, pressing spring; 5, pressing jaw; 6, clamping plate; 7, adjusting bolt; 8, clamping frame; 9, fixed wheel; 10, telescopic cylinder; 11, adjusting disc; 12, support; 13, high stand; 14, lever; 15, pick needle; 16, torsion spring; 17, pull rod. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0026] Please refer to Figures 1-6 The utility model provides technical scheme:
[0027] An off-axis glass lens detection tool, comprising a base 1 and a tool end 2, the tool end 2 is arranged at the top of the base 1, and the tool end 2 is integrally formed;
[0028] The tool end 2 comprises a vertical part 21, the top of the vertical part 21 is provided with a profiled surface 22, the top of the tool end 2 is provided with two positioning blocks 23, the two positioning blocks 23 are arranged on the two sides of the profiled surface 22, the top of the vertical part 21 is provided with an outer diameter positioning bearing surface 24, and the inner side of the outer diameter positioning bearing surface 24 is provided with a clearance groove 25
[0029] In the embodiment, the bottom end surface of the base 1 is processed flat by using a nylon material and processing the same profiled surface as the off-axis lens product, so as to prevent side swing when detecting the fixing tool, causing the detection size specification to be poor, processing the same curved surface as the optical surface of the off-axis lens, facilitating perfect positioning when the off-axis lens is fixed and attached, avoiding surface scratching and other adverse phenomena, three clearance grooves 25 are processed on the bearing end of the off-axis lens outer diameter positioning bearing surface 24, facilitating the use of a three-coordinate probe to detect the point to avoid needle collision, the distance between the positioning blocks 23 facilitates the preliminary and rapid determination of whether the size specification of the off-axis lens after processing is poor, and the cut off-axis lens can be directly placed in the tool end 2 of the detection tool during use, so that the bottom thereof is in contact with the profiled attachment surface 22, the two sides are in contact with the two positioning blocks 23, and the outer arc portion is attached to the outer edge of the outer diameter positioning bearing surface 24. At this time, it can be determined that if the off-axis lens can be easily placed and shaken, the size processing is too small, and if the off-axis lens cannot be placed, the processing size is too large, and the processing technology needs to be adjusted. After the preliminary screening is completed, the three-coordinate probe is used for detection, the size specification of the cut off-axis glass lens can be quickly and accurately detected, the problem of rework manufacturing after trial assembly is avoided, the production manufacturing cost is reduced, and the production processing efficiency is improved.
[0030] Specifically, as shown in Figure 1 The top of the base 1 is fixedly connected with a pressing plate 3, the rear side of the pressing plate 3 is fixedly connected with a pressing spring 4, the rear side of the pressing spring 4 is fixedly connected with a pressing jaw 5, and the side of the pressing jaw 5 close to the tool end 2 is in contact with the tool end 2.
[0031] Specifically, as shown in Figure 1 The top of the base 1 is fixedly connected with a pressing plate 3, the rear side of the pressing plate 3 is fixedly connected with a pressing spring 4, the rear side of the pressing spring 4 is fixedly connected with a pressing jaw 5, and the side of the pressing jaw 5 close to the tool end 2 is in contact with the tool end 2.
[0032] Specifically, as shown in Figure 1 The inner side of the clamping plate 6 is threadedly connected with an adjusting bolt 7, and the front side of the adjusting bolt 7 is fixedly connected with a clamping frame 8.
[0033] In the embodiment, when in use, the pressing plate 3 presses the pressing jaw 5 through the pressing spring 4, so that the pressing jaw 5 continuously presses one side of the tool end 2 under the limiting of the telescopic rod, and the other side is adjusted in position by rotating the clamping frame 8 along the clamping plate 6 through the adjusting bolt 7, and the clamping frame 8 is fixedly connected with the telescopic rod.
[0034] Specifically, as shown in Figure 2As shown in the drawings, the bottom of the base 1 is fixedly connected with a telescopic cylinder 10, the telescopic end of the telescopic cylinder 10 is fixedly connected with an adjusting disc 11, and the bottom of the base 1 is fixedly connected with a support 12.
[0035] Specifically, as shown in the drawings, Figure 1 , Figure 2 As shown in the drawings, the top of the base 1 is fixedly connected with an elevated frame 13, the inner side of the elevated frame 13 is rotatably connected with a lever 14, and the inner side of the lever 14 is rotatably connected with a pick needle 15.
[0036] Specifically, as shown in the drawings, Figure 1 , Figure 2 As shown in the drawings, the inner side of the profiled fitting surface 22 is provided with a pick groove, and the inner side of the pick groove is used in cooperation with the pick needle 15.
[0037] Specifically, as shown in the drawings, Figure 1 , Figure 2 As shown in the drawings, the outer side of the pick needle 15 is rotatably connected with a torsion spring 16, and the side, away from the pick needle 15, of the torsion spring 16 is fixedly connected with the lever 14.
[0038] Specifically, as shown in the drawings, Figure 1 , Figure 2 As shown in the drawings, the outer side of the adjusting disc 11 is rotatably connected with a pull rod 17, and the top of the pull rod 17 is rotatably connected with the lever 14.
[0039] In this embodiment: by setting the support 12, the structure is stably installed or placed in the working position, the telescopic cylinder 10 cooperates with the adjusting disc 11, which can facilitate the push and pull of the adjusting disc 11, so that the adjusting disc 11 pushes and pulls the pull rod 17 on its outer side to move, and the lever 14 connected with the pull rod 17 will rotate along the elevated frame 13, at this time the pick needle 15 will be relatively dropped into the pick groove or taken out from above, when the off-axis glass material is placed on the profiled fitting surface 22, if the shape fits, it will be tightly clamped between the outer diameter positioning bearing surface 24 and the positioning block 23, and it is difficult to take out, but in the process of taking off the pick needle 15 by the lever 14, it can be conveniently taken off, and after the off-axis lens has been placed, the pick needle 15 will rotate along the lever 14 after contacting the off-axis lens, at this time the torsion spring 16 stores energy, and after the pick needle 15 is located in the inner side of the pick groove, it is reset by the torsion spring 16, so as to facilitate the taking out of the off-axis lens.
[0040] Working principle: in use, first, the base 1 is placed steadily through the support 12, the tooling end 2 is adjusted to the appropriate height and angle by the telescopic cylinder 10, the adjusting disc 11, the pull rod 17 and the lever 14, the tooling end 2 is stabilized through the adjusting bolt 7, the fixed wheel 9, the pressing plate 3, the pressing spring 4 and the pressing jaw 5, then the cut-off off-axis lens is placed on the tooling end 2, the bottom of the lens is in contact with the profiling contact surface 22, the two sides are in abutment with the positioning block 23, the outer arc surface is in close contact with the outer diameter positioning bearing surface 24, if the lens can be closely contacted without shaking, it is preliminarily qualified, otherwise, the size is poor, the lens preliminarily detected qualified can be precisely detected by the three-coordinate probe by using the air-avoiding groove 25, when the lens is taken and placed, the pick pin 15 is driven by the telescopic cylinder 10 linkage lever 14, and the operation is completed by using the pick groove.
[0041] The above is only a preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An off-axis glass lens inspection fixture, comprising a base (1) and a fixture end (2), characterized in that: The tooling end (2) is located on the top of the base (1), and the tooling end (2) is integrally formed; The tooling end (2) includes a vertical part (21), the top of the vertical part (21) is provided with a contour-fitting surface (22), the top of the tooling end (2) is provided with two positioning blocks (23), the two positioning blocks (23) are provided on both sides of the contour-fitting surface (22), the top of the vertical part (21) is provided with an outer diameter positioning bearing surface (24), and the inner side of the outer diameter positioning bearing surface (24) is provided with a clearance groove (25).
2. The off-axis glass lens testing fixture according to claim 1, characterized in that: A pressure plate (3) is fixedly connected to the top of the base (1), a pressure spring (4) is fixedly connected to the rear side of the pressure plate (3), and a pressure claw (5) is fixedly connected to the rear side of the pressure spring (4). The pressure claw (5) is in contact with the tooling end (2) on the side near the tooling end (2).
3. The off-axis glass lens testing fixture according to claim 2, characterized in that: A clamping plate (6) is fixedly connected to the top of the base (1), and an adjusting bolt (7) is threadedly connected to the inner side of the clamping plate (6). A bracket (8) is fixedly connected to the front side of the adjusting bolt (7).
4. The off-axis glass lens testing fixture according to claim 3, characterized in that: The inner side of the card holder (8) is rotatably connected to a fixed wheel (9). The front side of the fixed wheel (9) is in contact with the tooling end (2). The rear side of the pressure plate (3) is fixedly connected to a telescopic rod. The telescopic rod is located inside the pressure spring (4). The side of the telescopic rod near the pressure claw (5) is fixedly connected to the pressure claw (5).
5. The off-axis glass lens testing fixture according to claim 1, characterized in that: A telescopic cylinder (10) is fixedly connected to the bottom of the base (1), an adjustment plate (11) is fixedly connected to the telescopic end of the telescopic cylinder (10), and a support (12) is fixedly connected to the bottom of the base (1).
6. The off-axis glass lens testing fixture according to claim 5, characterized in that: The top of the base (1) is fixedly connected to a frame (13), and the inside of the frame (13) is rotatably connected to a lever (14), and the inside of the lever (14) is rotatably connected to a pick (15).
7. The off-axis glass lens testing fixture according to claim 6, characterized in that: The inner side of the conforming surface (22) is provided with a groove, and the inner side of the groove is used in conjunction with the picking needle (15).
8. The off-axis glass lens testing fixture according to claim 7, characterized in that: A torsion spring (16) is rotatably connected to the outside of the picking needle (15), and the side of the torsion spring (16) away from the picking needle (15) is fixedly connected to the lever (14).
9. The off-axis glass lens testing fixture according to claim 6, characterized in that: A pull rod (17) is rotatably connected to the outside of the adjustment disc (11), and the top of the pull rod (17) is rotatably connected to the lever (14).