CN216694740U - Lens height loss detection device - Google Patents
Lens height loss detection device Download PDFInfo
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- CN216694740U CN216694740U CN202122352541.9U CN202122352541U CN216694740U CN 216694740 U CN216694740 U CN 216694740U CN 202122352541 U CN202122352541 U CN 202122352541U CN 216694740 U CN216694740 U CN 216694740U
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Abstract
The utility model relates to a lens height loss detection device. The device comprises a measuring part and a measuring tool, wherein the measuring part comprises a sleeve, a thimble and a display device; the measuring tool comprises a measuring ring fixedly installed on the periphery of the sleeve, the middle of the measuring ring is a thimble through hole which is communicated with the thimble through hole and used for penetrating through the thimble, the end face of the bottom of the measuring ring is provided with an annular positioning groove which is communicated with the thimble through hole and is coaxial with the thimble and used for installing and positioning the concave lens to be measured, the inner peripheral groove wall of the annular positioning groove is a first positioning surface which is coaxially matched with the peripheral wall of the concave lens to be measured and used for positioning the periphery of the concave lens to be measured, the upper side groove wall of the annular positioning groove is a second positioning surface used for positioning the upper surface of the concave lens to be measured, and the lower end part of the thimble is positioned in the thimble through hole and can be jacked at the lowest point of the concave part of the concave lens to be measured. The device has a simple structure, can be used for measuring the rise of the concave lens, and has high measuring efficiency and simple operation.
Description
Technical Field
The utility model relates to the field of lens measurement, in particular to a lens height loss detection device.
Background
At present, the rise confirmation of the concave lens in the processing industry of the optical lens is a measurement mode based on height measurement. However, in the method of measuring by using an altimeter, there are several disadvantages that the loss of product quality and efficiency is serious, and it is difficult to realize mass production operation, and firstly, the altimeter uses a plane mirror at the bottom as a bottom end standard, but because the central thickness of each lens has a large and small difference, each lens needs to obtain a numerical value for the remeasured edge of the central point during measurement, which wastes time. Secondly, because each lens needs to reset to the central point when in measurement, the central minimum value of the lens needs to be measured for multiple times and reset to the zero as the central point when in measurement of the central point, the appearance of the lens is easy to scratch in the process of finding the central point through multiple times of measurement, and the lens is seriously and directly scrapped. Thirdly, under the condition that the central point of the lens is difficult to find, the staff of the post needs to carry out a training period of more than three days, and different lenses need to be taken to carry out repeated practice on the measuring technique until the central point can be found basically, so that the post can be carried out, and the training period is long. Although the rise of the lens can be measured according to the operation, the operation method not only does not guarantee the quality of the measured lens, but also is not very beneficial to batch production matching, and can only be used as a single sampling inspection or routing inspection.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: the lens height loss detection device is simple in structure, can be used for measuring the rise of the concave lens, and is high in measurement efficiency and simple to operate.
The utility model is realized by the following technical scheme: a lens height loss detection device is characterized in that: the device comprises a measuring part and a measuring tool, wherein the measuring part comprises a sleeve extending along the vertical direction, a thimble coaxially and movably connected in the sleeve and capable of moving up and down relative to the sleeve, and a display device connected with the thimble and used for displaying the up-down movement variable quantity of the thimble relative to the sleeve;
the measuring tool comprises a measuring ring fixedly installed on the periphery of the sleeve, the middle of the measuring ring is a thimble through hole which is communicated with the thimble through hole and used for penetrating the thimble, the bottom end face of the measuring ring is provided with an annular positioning groove which is communicated with the thimble through hole and is coaxial with the thimble and used for installing and positioning the concave lens to be measured, the inner peripheral wall of the annular positioning groove is a first positioning surface which is coaxially matched with the peripheral wall of the concave lens to be measured and used for positioning the periphery of the concave lens to be measured, the upper side groove wall of the annular positioning groove is a second positioning surface which is used for positioning the upper surface of the concave lens to be measured, and the lower end part of the thimble is positioned in the thimble through hole and can be jacked at the lowest point of the concave part of the concave lens to be measured.
For the convenience of dismouting adjustment, measure the frock still including connecting and nut, connect and put at telescopic periphery through its middle part through-hole movable sleeve, the upper end periphery wall that connects is equipped with the external screw thread to be equipped with a plurality of minutes on the upper end periphery wall that connects and establish at different circumference positions and from the roof position downwardly extending who connects to connect the cell body of middle part position, each cell body link up to connecting in the middle part through-hole by connecting the periphery wall, nut screw thread lock connects can be in the same place fixed connection on upper portion and the sleeve when connecting on the external screw thread of the upper end periphery wall that connects, also is equipped with the external screw thread at the lower extreme periphery wall that connects, it connects on the lower extreme periphery wall to measure ring thread connection.
Preferably, the display device is a dial plate, and the dial plate is fixedly arranged at the upper end of the sleeve or positioned beside the measuring tool and connected with the thimble through a wireless transmission device or a wired transmission device.
Preferably, the measuring component is a dial indicator.
Preferably, the display device is a display screen, and the display screen is located beside the measuring tool and connected with the thimble through a wireless transmission device or a wired transmission device.
In order to ensure that the thimble is in contact with the central point of the concave lens to be measured, the radius of two times of the lower end part of the thimble is smaller than the radius of the concave part of the concave lens to be measured.
Compared with the prior art, the utility model has the beneficial effects that:
1. the lens height loss detection device provided by the utility model uses the dial indicator as a measurement component, can position the lens through the annular positioning groove of the measurement ring, and is simple in structure, high in measurement efficiency and simple in operation.
2. According to the lens height loss detection device, the dial indicator and the measurement tool are of a split structure, so that the disassembly and the assembly are convenient.
3. The lens height loss detection device can be designed into different apertures according to the structure of a lens product, and has a wide application range.
4. According to the lens height loss detection device, a zero-crossing standard film is required to be manufactured for a measured lens, the lens can be put into batch use after standard correction before use, the rise of one lens can be measured in 2-3 seconds during measurement, and the measurement efficiency is greatly improved.
Drawings
Fig. 1 is a schematic view of a split structure according to a first embodiment of the present invention;
FIG. 2 is a first schematic structural diagram according to a first embodiment of the present invention;
FIG. 3 is a second schematic structural diagram according to a first embodiment of the present invention;
FIG. 4 is a third schematic structural diagram according to a first embodiment of the present invention;
FIG. 5 is a schematic structural diagram according to a second embodiment of the present invention;
fig. 6 is a schematic structural diagram of a third embodiment of the present invention.
Description of reference numerals: 1-measuring part, 11-sleeve, 12-thimble, 13-display device, 2-measuring tool, 21-measuring ring, 211-thimble through hole, 212-annular positioning groove, 22-joint, 221-groove body, 23-nut, 3-concave lens to be measured, 4-rotary pointer, 5-main pointer, a-first positioning surface and b-second positioning surface.
Detailed Description
The utility model is described in detail below with reference to the following description of the drawings:
the first embodiment is as follows:
as shown in fig. 1-4, a lens height loss detection device mainly includes a measurement component 1 and a measurement tool 2, where the measurement component 1 includes a sleeve 11 extending along a vertical direction, a thimble 12 coaxially and movably connected in the sleeve 11 and capable of moving up and down relative to the sleeve 11, and a display device 13 connected with the thimble 12 and used for displaying the up-down movement variation of the thimble 12 relative to the sleeve 11;
the measuring tool 2 comprises a measuring ring 21 fixedly installed on the periphery of the sleeve 11, the middle of the measuring ring 21 is a thimble through hole 211 which is communicated with the thimble through hole 211 from top to bottom and used for penetrating the thimble 12, the end surface of the bottom of the measuring ring 21 is provided with an annular positioning groove 212 which is communicated with the thimble through hole 211 and is coaxial with the thimble 12 and used for installing and positioning the concave lens 3 to be measured, the inner peripheral wall of the annular positioning groove 212 is a first positioning surface a which is coaxially matched with the peripheral wall of the concave lens 3 to be measured and used for positioning the periphery of the concave lens 3 to be measured, the upper side wall of the annular positioning groove 212 is a second positioning surface b which is used for positioning the upper surface of the concave lens 3 to be measured, the lower end part of the thimble 12 is located in the thimble through hole 211 and can be pressed against the lowest point of the concave lens 3 to be measured.
In order to facilitate the dismouting adjustment, measure frock 2 still includes joint 22 and nut 23, it puts the periphery at sleeve 11 through its middle part through-hole activity cover to connect 22, the upper end periphery wall that connects 22 is equipped with the external screw thread to be equipped with a plurality ofly and establish respectively in different circumference position and from the cell body 221 that the roof position downwardly extending who connects 22 middle part position on the upper end periphery wall of joint 22, each cell body 221 is link up to connecting 22 middle part through-hole by connecting 22 periphery wall in, nut 23 screw thread lock connects can be in the same place fixed connection on joint 22 upper portion and the sleeve 11 when the external screw thread of the upper end periphery wall that connects 22, also is equipped with the external screw thread at the lower extreme periphery wall that connects 22, it connects on the lower extreme periphery wall that connects 22 to measure ring 21 screw thread connection.
Preferably, the display device 13 is a dial plate fixedly disposed at an upper end of the sleeve 11.
Preferably, the measuring means 1 is a dial gauge.
In order to ensure that the thimble is in contact with the central point of the concave lens to be measured, the radius of two times of the lower end part of the thimble 12 is smaller than the radius of the concave part of the concave lens 3 to be measured.
The working principle of the embodiment is as follows:
firstly, sleeving a connector 22 on the periphery of a sleeve 11 of a dial indicator, locking a screw cap 23 and a measuring ring 21, completing assembly, firstly placing a reference concave lens into an annular positioning groove 212 of the measuring ring 21, then adjusting the height of the measuring ring 21 to enable a revolution pointer 4 of the dial indicator to be within a measuring range, and shifting a dial plate of the dial indicator to enable a main pointer 5 to return to zero; as shown in fig. 2, the size of the lens is 1.000mm when the dial gauge is reset to zero, and the reference lens is replaced by the concave lens to be measured.
As shown in fig. 3, a unit of 0.001mm in a small grid in a large dial of the dial indicator is combined with a comparison criterion of depth on the left and depth on the right, and data reading is performed on the comparison criterion of depth on the left and depth on the right, when the revolution pointer 4 is the same as zero, the main pointer 5 is shifted to the left by 20 grids, namely 1.000mm +0.020mm is 1.020mm, otherwise, when the revolution pointer 4 is shifted to the right by 20 grids, namely 1.000mm-0.020mm is 0.980mm, as shown in fig. 4, in the dial of the dial indicator, the revolution pointer 4 is the same as zero, the main pointer 5 is shifted to the right by 20 grids, and finally, according to the numerical value of the lens and the tolerance given by the drawing, whether the rise of the lens is qualified is judged, and the lens can be put into batch use according to the above operation method.
Example two:
as shown in fig. 5, the difference between the present embodiment and the first embodiment is: the dial plate is located beside the measuring tool 2 and connected with the thimble 12 through a wireless transmission device or a wired transmission device.
Example three:
as shown in fig. 6, the present embodiment is different from the first embodiment in that: the display device 13 is a display screen, and the display screen is located beside the measuring tool 2 and connected with the thimble 12 through a wireless transmission device or a wired transmission device.
While the utility model has been illustrated and described with respect to specific embodiments and alternatives thereof, it will be understood that various changes and modifications can be made without departing from the spirit and scope of the utility model. It is understood, therefore, that the utility model is not to be in any way limited except by the appended claims and their equivalents.
Claims (6)
1. A lens height loss detection device is characterized in that: the device comprises a measuring part (1) and a measuring tool (2), wherein the measuring part (1) comprises a sleeve (11) extending along the vertical direction, an ejector pin (12) coaxially and movably connected in the sleeve (11) and capable of moving up and down relative to the sleeve (11), and a display device (13) connected with the ejector pin (12) and used for displaying the up-down movement variation of the ejector pin (12) relative to the sleeve (11);
the measuring tool (2) comprises a measuring ring (21) fixedly arranged on the periphery of the sleeve (11), the middle part of the measuring ring (21) is provided with a thimble through hole (211) which is communicated up and down and is used for penetrating a thimble (12), the bottom end surface of the measuring ring (21) is provided with an annular positioning groove (212) which is communicated with the thimble through hole (211) and is coaxial with the thimble (12) and used for installing and positioning the concave lens (3) to be measured, the inner peripheral groove wall of the annular positioning groove (212) is a first positioning surface (a) which is coaxially matched with the outer peripheral wall of the concave lens (3) to be detected and is used for positioning the outer periphery of the concave lens (3) to be detected, and the upper side groove wall of the annular positioning groove (212) is a second positioning surface (b) for positioning the upper surface of the concave lens (3) to be measured, the lower end part of the thimble (12) is positioned in the thimble through hole (211) and can be pressed against the lowest point of the concave part of the concave lens (3) to be measured.
2. The lens height loss detection device of claim 1, wherein: the measuring tool (2) further comprises a joint (22) and a screw cap (23), the joint (22) is movably sleeved on the periphery of the sleeve (11) through a through hole in the middle of the joint, an external thread is arranged on the outer peripheral wall of the upper end of the joint (22), and the peripheral wall of the upper end of the joint (22) is provided with a plurality of groove bodies (221) which are respectively arranged at different circumferential positions and downwards extend from the top wall position of the joint (22) to the middle position of the joint (22), each groove body (221) is penetrated into a through hole in the middle of the joint (22) by the peripheral wall of the joint (22), the upper part of the joint (22) can be fixedly connected with the sleeve (11) when the nut (23) is in threaded locking connection with the external thread on the peripheral wall of the upper end of the joint (22), and the outer peripheral wall of the lower end of the joint (22) is also provided with an external thread, and the measuring ring (21) is in threaded connection with the outer peripheral wall of the lower end of the joint (22).
3. The lens height loss detection device of claim 1, wherein: the display device (13) is a dial plate, and the dial plate is fixedly arranged at the upper end of the sleeve (11) or positioned beside the measuring tool (2) and connected with the thimble (12) through a wireless transmission device or a wired transmission device.
4. The lens height loss detection device of claim 1, wherein: the measuring component (1) is a dial indicator.
5. The lens height loss detection device of claim 1, wherein: the display device (13) is a display screen, and the display screen is located beside the measuring tool (2) and is connected with the thimble (12) through a wireless transmission device or a wired transmission device.
6. The lens height loss detection device of claim 1, wherein: the radius of two times of the lower end part of the thimble (12) is smaller than the radius of the concave part of the concave lens (3) to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122352541.9U CN216694740U (en) | 2021-09-27 | 2021-09-27 | Lens height loss detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122352541.9U CN216694740U (en) | 2021-09-27 | 2021-09-27 | Lens height loss detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216694740U true CN216694740U (en) | 2022-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122352541.9U Active CN216694740U (en) | 2021-09-27 | 2021-09-27 | Lens height loss detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216694740U (en) |
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2021
- 2021-09-27 CN CN202122352541.9U patent/CN216694740U/en active Active
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