CN220356634U - Optical cement mirror plate parallel difference measuring device - Google Patents
Optical cement mirror plate parallel difference measuring device Download PDFInfo
- Publication number
- CN220356634U CN220356634U CN202321801657.9U CN202321801657U CN220356634U CN 220356634 U CN220356634 U CN 220356634U CN 202321801657 U CN202321801657 U CN 202321801657U CN 220356634 U CN220356634 U CN 220356634U
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- optical cement
- plate
- mounting
- dial indicator
- screw rod
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- 230000003287 optical effect Effects 0.000 title claims abstract description 70
- 239000004568 cement Substances 0.000 title claims abstract description 55
- 239000011521 glass Substances 0.000 claims description 20
- 238000005259 measurement Methods 0.000 abstract description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000002441 reversible effect Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to a device for measuring the parallelism difference of an optical cement mirror plate, which belongs to the technical field of precision optical processing and comprises a dial indicator, wherein the dial indicator is arranged on a bracket, the lower end of the bracket is fixed on a storage flat plate, the upper end of the bracket is provided with a mounting plate, the mounting plate is provided with a mounting through hole, the gauge head of the dial indicator vertically penetrates through the mounting through hole downwards, the mounting through hole is matched with a fastening bolt, and the dial indicator is fixed through the fastening bolt. The utility model has simple structure, convenient manufacture and lower cost, belongs to contact type measurement, has high measurement precision of 0.001mm, can reduce measurement time, can carry out parallel difference measurement on optical cement mirror plates with different heights, and has wide application range and convenient operation.
Description
Technical Field
The utility model belongs to the technical field of precision optical processing, and particularly relates to a device for measuring the parallel difference of an optical cement mirror plate.
Background
The optical part optical cement mirror disc is usually measured by a micrometer when the parallel difference of the mirror disc is controlled, and the minimum grid value of the micrometer is 0.01mm, so that the optical part optical cement mirror disc can be accurate to about 0.003mm through estimation and reading. Meanwhile, the fixed measuring head of the micrometer has small caliber and is not easy to be attached to the lower surface of the optical lens disc, particularly the micrometer with the specification of more than 50-75mm has larger measuring error, poor measuring repeatability and great measuring difficulty, and the measuring accuracy is about 0.003-0.01 mm, so that the control of the parallelism of the optical lens disc is influenced, the manufacturing accuracy of optical parts is indirectly influenced, and therefore, the optical lens disc parallelism measuring device is needed to solve the problems.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides a device for measuring the parallelism difference of an optical cement mirror plate, which comprises a dial indicator, wherein the dial indicator is arranged on a bracket, the lower end of the bracket is fixed on a storage flat plate, the upper end of the bracket is provided with a mounting plate, the mounting plate is provided with a mounting through hole, the gauge head of the dial indicator vertically penetrates through the mounting through hole downwards, the mounting through hole is matched with a fastening bolt, and the dial indicator is fixed through the fastening bolt.
Preferably, the mounting panel is through removing mobilizable setting on the support of subassembly, remove the subassembly and include screw rod and slider, be equipped with vertical spout on the support, the screw rod is located the spout, and the both ends of screw rod are connected through bearing and the both ends rotation of spout respectively, the slider slides and sets up in the spout and match with the spout, the one end and the slider fixed connection of mounting panel, the screw rod runs through the slider and with slider screw thread fit, the screw rod is connected with drive assembly.
Preferably, the driving assembly is a forward and backward motor, an output shaft of the forward and backward motor is connected with the lower end of the screw rod, and the forward and backward motor is connected with a control switch. The position is provided with the forward and reverse rotation motor which can be rotated forward and reverse through the control switch, so that the screw rod is driven to rotate forward and reverse, the sliding block drives the mounting plate to move up and down, and the parallel difference measurement can be carried out on the optical cement mirror plates with different heights on the premise that the standard pole of the dial indicator is not replaced. Simple operation and wide application range.
Preferably, the driving assembly comprises a first conical gear, a second conical gear and a knob, the lower end of the bracket is provided with a containing cavity, the lower end of the screw rod stretches into the containing cavity and is fixedly connected with the first conical gear, the first conical gear is meshed with the second conical gear, the center of the second conical gear is fixedly connected with a rotating shaft, and one end of the rotating shaft stretches out of the containing cavity and is fixedly connected with the knob. The position is provided with the rotatable knob which can drive the screw to rotate positively and negatively, so that the sliding block drives the mounting plate to move up and down, and the parallel difference measurement can be carried out on the optical cement mirror plates with different heights on the premise of not replacing the standard pole of the dial indicator. Simple operation and wide application range.
Preferably, the storage plate is a glass plate.
The utility model has the advantages of simple structure, convenient manufacture, lower cost, wide application range, good economy and popularization. According to the thin film interference principle of light, the formula is obtained:
Δh＝N·λ/2
wherein: Δh is the thickness error of the joint surface between the lower surface of the optical cement mirror plate and the glass plate, N is the f-number of the joint surface, lambda is the wavelength of natural light, lambda is approximately 580nm. Since the lower surface of the optical lens disc and the surface shape of the glass plate are better, the f-number of the joint surface can reach N less than or equal to 0.3, so the thickness error delta h of the joint surface of the lower surface of the optical lens disc and the glass plate is less than or equal to 0.3 multiplied by 580/2 nm=87 nm and less than 0.0001mm (the above is all the prior art). Therefore, the utility model utilizes the film interference principle of light, uses the dial indicator (the precision is 0.001 mm), designs the optical lens disc parallelism difference measuring device, greatly improves the optical lens disc measuring precision (0.001 mm), reduces the measuring time, is convenient to operate, and has good economy and popularization.
The utility model also comprises other components which can ensure that the optical cement mirror plate parallelism difference measuring device is normally used, such as a control component of a forward and reverse rotation motor, and the like, which are all conventional technical means in the field. In addition, the undefined devices or components in the present utility model all use conventional technical means in the art, such as a reversible motor, dial indicator, knob, etc. all use conventional equipment in the art.
Working principle: the measuring device belongs to contact type measurement, and the measurement accuracy can reach 0.001mm. When the parallel difference of the optical cement disc is measured, the object placing flat plate is held, a thicker light band is attached to the bottom of the object placing flat plate and the bottom of the optical cement disc, the gauge head of the dial gauge contacts the upper surface of the optical cement disc to measure, the optical cement disc is rotated, and the difference of the numerical values obtained at all parts of the measured optical cement disc is the parallel difference numerical value of the optical cement disc.
The utility model has the advantages of simple structure, convenient manufacture, low cost, wide application range and convenient operation, belongs to contact measurement, has high measurement precision which can reach 0.001mm, can reduce measurement time, and can carry out parallel difference measurement on optical cement mirror plates with different heights.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of a device for measuring the parallelism of an optical lens tray in embodiment 1;
FIG. 2 is a state diagram of the measurement of FIG. 1;
FIG. 3 is a schematic diagram of a device for measuring the parallelism of an optical lens tray in embodiment 2;
FIG. 4 is a schematic diagram of a device for measuring the parallelism of an optical lens tray in embodiment 3;
fig. 5 is a schematic view of the moving assembly of fig. 4.
In the figure: 1. a storage flat plate; 2. a bracket; 3. a mounting plate; 4. a dial gauge; 5. a gauge head; 6. a fastening bolt; 7. a photo-adhesive mirror plate; 8. the upper surface of the optical cement mirror plate; 9. a screw; 10. a control switch; 11. a knob; 12. a chute; 13. a receiving chamber; 14. a first conical gear; 15. and a second bevel gear.
Detailed Description
The present utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the utility model are shown, and in which embodiments of the utility model are shown. All other embodiments, modifications, equivalents, improvements, etc., which are apparent to those skilled in the art without the benefit of this disclosure, are intended to be included within the scope of this utility model.
Example 1
As shown in fig. 1-2, the utility model provides a device for measuring the parallelism difference of an optical cement mirror plate, which comprises a dial indicator 4, wherein the dial indicator 4 is arranged on a bracket 2, the lower end of the bracket is fixed on a storage flat plate 1, the upper end of the bracket is provided with a mounting plate 3, the mounting plate is provided with a mounting through hole, a gauge head 5 of the dial indicator vertically penetrates through the mounting through hole downwards, the mounting through hole is matched with a fastening bolt 6, and the dial indicator is fixed through the fastening bolt.
The object placing plate 1 is a glass plate, and the surface shape N of the glass plate is less than 1 (namely, the whole surface flatness is about 0.0003 mm).
During operation, the gauge head, the glass flat plate, the lower surface of the optical cement mirror plate and the upper surface of the optical cement mirror plate of the dial indicator are cleaned, so that the measurement accuracy is ensured; then selecting a proper dial indicator rod according to the height of the optical cement mirror plate (for example, when small-size parts are measured, unscrewing the dial indicator head, selecting a longer dial indicator rod to be screwed on, connecting the dial indicator head, then loosening the fastening bolt, moving the dial indicator up and down for fine adjustment, and finally screwing the fastening bolt; and finally, when the parallel difference of the optical cement mirror plate is measured, the glass plate is held by hand, the thicker light bands are attached to the bottoms of the glass plate and the optical cement mirror plate, the measuring precision is ensured, the gauge head of the dial indicator contacts the upper surface of the optical cement mirror plate to measure, the optical cement mirror plate is rotated, and the difference of the numerical values obtained from all parts of the measured optical cement mirror plate is the parallel difference numerical value of the mirror plate. The utility model has the advantages of simple structure, convenient manufacture, lower cost, wide application range, good economy and popularization.
Example 2
As shown in fig. 3, the utility model provides a device for measuring the parallelism difference of an optical cement mirror plate, which comprises a dial indicator 4, wherein the dial indicator 4 is arranged on a bracket 2, the lower end of the bracket is fixed on a storage flat plate 1, the upper end of the bracket is provided with a mounting plate 3, the mounting plate is provided with a mounting through hole, a gauge head 5 of the dial indicator vertically penetrates through the mounting through hole downwards, and the mounting through hole is matched with a fastening bolt 6, and the dial indicator is fixed through the fastening bolt.
The mounting plate 3 is arranged on the support through the movable arrangement of the movable assembly, the movable assembly comprises a screw 9 and a sliding block, a vertical sliding groove 12 is formed in the support, the screw is located in the sliding groove, two ends of the screw are respectively connected with two ends of the sliding groove through bearings in a rotating mode, the sliding block is arranged in the sliding groove in a sliding mode and is matched with the sliding groove in a sliding mode, one end of the mounting plate 3 is fixedly connected with the sliding block, the screw penetrates through the sliding block and is in threaded fit with the sliding block, and the screw is connected with a driving assembly.
The driving assembly is a forward and backward motor, an output shaft of the forward and backward motor is connected with the lower end of the screw rod, and the forward and backward motor is connected with a control switch 10.
The object placing plate 1 is a glass plate, and the surface shape N of the glass plate is less than 1 (namely, the whole surface flatness is about 0.0003 mm).
During operation, the gauge head, the glass flat plate, the lower surface of the optical cement mirror plate and the upper surface of the optical cement mirror plate of the dial indicator are cleaned, so that the measurement accuracy is ensured; then a control switch is started according to the height of the optical cement mirror plate to enable the screw rod to rotate positively and negatively, the sliding block drives the mounting plate to move up and down to enable the gauge head of the dial indicator to be matched with the height of the optical cement mirror plate, then the dial indicator is moved up and down to carry out fine adjustment by loosening the fastening bolt, and finally the fastening bolt is screwed; when the parallel difference of the optical cement disc is measured, the glass plate is held by hands, the thicker light bands are attached to the bottoms of the glass plate and the optical cement disc, the measurement accuracy is ensured, the gauge head of the dial indicator contacts the upper surface of the optical cement disc to measure, the optical cement disc is rotated, and the difference of the obtained values of all parts of the measured optical cement disc is the parallel difference value of the optical cement disc.
Example 3
As shown in fig. 4-5, the utility model provides a device for measuring the parallelism difference of an optical cement mirror plate, which comprises a dial indicator 4, wherein the dial indicator 4 is arranged on a bracket 2, the lower end of the bracket is fixed on a storage flat plate 1, the upper end of the bracket is provided with a mounting plate 3, the mounting plate is provided with a mounting through hole, a gauge head 5 of the dial indicator vertically penetrates through the mounting through hole downwards, the mounting through hole is matched with a fastening bolt 6, and the dial indicator is fixed through the fastening bolt.
The mounting plate 3 is arranged on the support through the movable arrangement of the movable assembly, the movable assembly comprises a screw 9 and a sliding block, a vertical sliding groove 12 is formed in the support, the screw is located in the sliding groove, two ends of the screw are respectively connected with two ends of the sliding groove through bearings in a rotating mode, the sliding block is arranged in the sliding groove in a sliding mode and is matched with the sliding groove in a sliding mode, one end of the mounting plate 3 is fixedly connected with the sliding block, the screw penetrates through the sliding block and is in threaded fit with the sliding block, and the screw is connected with a driving assembly.
The driving assembly comprises a first conical gear 14, a second conical gear 15 and a knob 11, wherein the lower end of the bracket is provided with a containing cavity 13, the lower end of the screw rod stretches into the containing cavity and is fixedly connected with the first conical gear, the first conical gear is meshed with the second conical gear, the center of the second conical gear is fixedly connected with a rotating shaft, and one end of the rotating shaft stretches out of the containing cavity and is fixedly connected with the knob.
The object placing plate 1 is a glass plate, and the surface shape N of the glass plate is less than 1 (namely, the whole surface flatness is about 0.0003 mm).
During operation, the gauge head, the glass flat plate, the lower surface of the optical cement mirror plate and the upper surface of the optical cement mirror plate of the dial indicator are cleaned, so that the measurement accuracy is ensured; then according to the knob which is rotated forward or backward in the height of the optical cement mirror plate, the screw is rotated forward or backward under the cooperation of the first conical gear and the second conical gear, the sliding block drives the mounting plate to move up and down, the gauge head of the dial indicator is matched with the height of the optical cement mirror plate, then the fastening bolt is loosened, the dial indicator is moved up and down to carry out fine adjustment, and finally the fastening bolt is screwed; when the parallel difference of the optical cement disc is measured, the glass plate is held by hands, the thicker light bands are attached to the bottoms of the glass plate and the optical cement disc, the measurement accuracy is ensured, the gauge head of the dial indicator contacts the upper surface of the optical cement disc to measure, the optical cement disc is rotated, and the difference of the obtained values of all parts of the measured optical cement disc is the parallel difference value of the optical cement disc.
The embodiments of the present utility model have been described above, the description is illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (5)
1. The utility model provides a light gum mirror dish parallel error measuring device, includes the amesdial, its characterized in that: the dial indicator is arranged on the support, the lower end of the support is fixed on the object placing flat plate, the upper end of the support is provided with a mounting plate, a mounting through hole is formed in the mounting plate, the gauge head of the dial indicator vertically penetrates through the mounting through hole downwards, the mounting through hole is matched with a fastening bolt, and the dial indicator is fixed through the fastening bolt.
2. The optical cement mirror plate parallelism measuring apparatus according to claim 1, wherein: the mounting plate is arranged on the support through the movable assembly, the movable assembly comprises a screw rod and a sliding block, a vertical sliding groove is formed in the support, the screw rod is located in the sliding groove, two ends of the screw rod are respectively connected with two ends of the sliding groove through bearings in a rotating mode, the sliding block is arranged in the sliding groove in a sliding mode and matched with the sliding groove in a sliding mode, one end of the mounting plate is fixedly connected with the sliding block, the screw rod penetrates through the sliding block and is in threaded fit with the sliding block, and the screw rod is connected with a driving assembly.
3. The optical cement mirror plate parallelism measuring apparatus according to claim 2, wherein: the driving assembly is a forward and backward motor, an output shaft of the forward and backward motor is connected with the lower end of the screw rod, and the forward and backward motor is connected with a control switch.
4. The optical cement mirror plate parallelism measuring apparatus according to claim 2, wherein: the driving assembly comprises a first conical gear, a second conical gear and a knob, wherein the lower end of the bracket is provided with a containing cavity, the lower end of the screw rod stretches into the containing cavity and is fixedly connected with the first conical gear, the first conical gear is meshed with the second conical gear, the center of the second conical gear is fixedly connected with a rotating shaft, and one end of the rotating shaft stretches out of the containing cavity and is fixedly connected with the knob.
5. The optical cement mirror plate parallelism measuring apparatus according to claim 1, wherein: the object placing plate is a glass plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321801657.9U CN220356634U (en) | 2023-07-10 | 2023-07-10 | Optical cement mirror plate parallel difference measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321801657.9U CN220356634U (en) | 2023-07-10 | 2023-07-10 | Optical cement mirror plate parallel difference measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220356634U true CN220356634U (en) | 2024-01-16 |
Family
ID=89500933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321801657.9U Active CN220356634U (en) | 2023-07-10 | 2023-07-10 | Optical cement mirror plate parallel difference measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220356634U (en) |
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2023
- 2023-07-10 CN CN202321801657.9U patent/CN220356634U/en active Active
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