Infrared absorption optical filter thickness measurement placing clamp

Abstract

The utility model relates to the field of ultrathin sheet measuring clamps, and discloses an infrared absorption optical filter thickness measuring placing clamp which comprises a clamp working table, two second limiting grooves are formed in the clamp working table, and a pair of clamping blocks matched with each other are arranged in the two second limiting grooves respectively. A clamp driving mechanism for simultaneously driving the two pairs of clamping blocks to clamp and fix the ultrathin sheet is arranged on the lower side of the clamp working table, and an infrared measuring mechanism for performing infrared non-contact measurement on the thickness of the ultrathin sheet is arranged on the upper side of the clamp working table. The surface of a product does not need to be contacted, the measurement distance is fixed, measurement is stable, the dirty piece phenomenon can be reduced, the dirty piece reject ratio can be reduced from%, and the product percent of pass can be remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ultra-thin piece thickness measurement, in particular to a thickness measurement and placement fixture for infrared absorption filters. Background Art

[0002] In actual production, when it is necessary to measure the thickness of ultra-thin polished finished products such as 80mm*80mm*0.2mm and 100mm*100mm*0.2mm, operators will inadvertently measure by hand. However, this traditional operation has the following technical problems:

[0003] During the manual measurement process, the main plane is easily touched, which will cause dirty films, which will lead to a dirty film defect rate of more than 1%. In addition, manual measurement has unadjustable systematic errors and the problem of low measurement accuracy.

[0004] In summary, an infrared absorption filter thickness measurement placement fixture is proposed to solve the above problems. Utility Model Content

[0005] In order to solve the technical problem of ultra-thin piece thickness measurement fixtures, the utility model provides an infrared absorption filter thickness measurement placement fixture.

[0006] The utility model is implemented by the following technical scheme: a fixture for placing an infrared absorption filter for measuring thickness, comprising a fixture workbench, wherein the fixture workbench is provided with two No. 2 limit grooves, wherein a pair of clamping blocks cooperating with each other are respectively arranged in the two No. 2 limit grooves, a fixture driving mechanism for simultaneously driving the two pairs of clamping blocks to clamp and fix the ultra-thin sheet is arranged on the lower side of the fixture workbench, and an infrared measuring mechanism for performing infrared non-contact measurement of the thickness of the ultra-thin sheet is arranged on the upper side of the fixture workbench.

[0007] As a further improvement of the above scheme, the clamp driving mechanism includes a No. 1 connecting plate and a No. 2 connecting plate which are respectively fixedly connected to the lower side of each pair of clamping blocks, and the No. 1 connecting plate and the No. 2 connecting plate are both slidably connected to the inner side of the No. 2 limiting groove, and the No. 1 connecting plate and the No. 2 connecting plate are provided with a limiting groove mechanism that allows the two clamping blocks to be equidistantly close to each other.

[0008] As a further improvement of the above-mentioned scheme, the limiting groove mechanism includes an inner through groove opened on the No. 1 connecting plate, a No. 2 slide groove opened on the No. 2 connecting plate, and the No. 1 connecting plate is located on both sides of the inner through groove and has a No. 1 slide groove extending therethrough. The inner sides of the two No. 1 slide grooves and one No. 2 slide groove are provided with a quadrangular mechanism that enables the No. 1 slide groove and the No. 2 slide groove to cross and move relative to each other.

[0009] As a further improvement of the above-mentioned scheme, the tetrahedral mechanism includes a tetrahedral block that is slidably connected to the inner sides of two No. 1 slide grooves and one No. 2 slide groove at the same time, the tetrahedral block is a hexahedral structure, the cross-section of the tetrahedral block is a rhombus, and a tetrahedral block driving mechanism is arranged below the tetrahedral block to enable the tetrahedral block to reciprocate up and down in a vertical direction.

[0010] As a further improvement of the above-mentioned scheme, the four-sided block driving mechanism includes pull rods fixedly connected to the two ends of the two four-sided blocks respectively, and the lower ends of the two pairs of pull rods are commonly fixedly connected with a push plate. A push plate driving mechanism for making the push plate reciprocate up and down is arranged below the push plate, and a push plate limiting mechanism for limiting the movement direction of the push plate is arranged on the push plate.

[0011] As a further improvement of the above scheme, the push plate driving mechanism includes a servo motor fixedly connected to the bottom side of the clamp workbench, the output end of the servo motor is fixedly connected to a threaded rod threadedly sleeved with the push plate, and the upper end of the threaded rod is rotatably connected to the inner side of the upper surface of the clamp workbench.

[0012] As a further improvement of the above scheme, the push plate limiting mechanism includes a plurality of limiting rods fixedly connected to the bottom side of the clamp workbench, the plurality of limiting rods are slidably connected to the push plate, and the upper ends of the plurality of limiting rods are fixedly connected to the inner side of the upper surface of the clamp workbench.

[0013] As a further improvement of the above scheme, the infrared measuring mechanism includes an infrared thickness gauge fixedly connected to the upper side of the fixture workbench, and the infrared thickness gauge is internally provided with a laser system, an imaging objective system, a photosensitive receiver system, and a signal processor measurement result display system.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model only requires the operator to put the product into the clamping jaws of the clamping block without touching the surface of the product. The fixed measuring distance can be used for stable measurement, which can reduce the dirty film phenomenon. The defective rate of dirty films can be reduced from 1% to close to 0, which can significantly improve the qualified rate of products.

[0016] 2. Without a special fixture, it takes more than 30 seconds to measure an ultra-thin product. Using the special fixture of the utility model, it only takes 3 seconds, which improves the efficiency by more than 10 times and can significantly improve the measurement work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A front view of a fixture for measuring the thickness of an infrared absorption filter provided by the utility model;

[0018] Figure 2 It is the first cross-sectional view of the utility model;

[0019] Figure 3 It is a second cross-sectional view of the utility model;

[0020] Figure 4 for Figure 2 A top view of

[0021] Figure 5 is a structural schematic diagram of the fixture driving mechanism;

[0022] Figure 6 for Figure 5 Explosion diagram.

[0023] Description of main symbols:

[0024] 1. Fixture workbench; 2. Clamp block; 3. Infrared thickness gauge; 4. Servo motor; 5. Limit rod; 6. Limit slot No. 1; 7. Push plate; 8. Threaded rod; 9. Limit slot No. 2; 10. Connecting plate No. 1; 11. Pull rod; 12. Slide slot No. 1; 13. Connecting plate No. 2; 14. Four-sided block; 15. Inner through slot; 16. Slide slot No. 2. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0026] Example:

[0027] Please combine Figure 1-Figure 6 , an infrared absorption filter thickness measurement placement fixture of the present embodiment includes a fixture workbench 1, the fixture workbench 1 is made of aluminum material, and two No. 2 limit grooves 9 are opened on the fixture workbench 1. A pair of mutually matching clamping blocks 2 are respectively arranged in the two No. 2 limit grooves 9. The thickness of the clamping blocks 2 is greater than the width of the No. 2 limit grooves 9 to prevent external dust from entering the No. 2 limit grooves 9. The lower side of the fixture workbench 1 is provided with a fixture driving mechanism for simultaneously driving the two pairs of clamping blocks 2 to clamp and fix the ultra-thin sheet, and the upper side of the fixture workbench 1 is provided with an infrared measuring mechanism for performing infrared non-contact measurement of the thickness of the ultra-thin sheet.

[0028] Please combine Figure 4 , Figure 5 and 6 As shown, the clamp driving mechanism includes a No. 1 connecting plate 10 and a No. 2 connecting plate 13 which are respectively fixedly connected to the lower side of each pair of clamping blocks 2. The No. 1 connecting plate 10 and the No. 2 connecting plate 13 are both slidably connected to the inner side of the No. 2 limiting groove 9. The No. 1 connecting plate 10 and the No. 2 connecting plate 13 are provided with a limiting groove mechanism that allows the two clamping blocks 2 to be equidistantly close to each other.

[0029] The limiting groove mechanism includes an inner through groove 15 opened on the No. 1 connecting plate 10, a No. 2 slide groove 16 opened on the No. 2 connecting plate 13, and the No. 1 connecting plate 10 is located on both sides of the inner through groove 15 and has a No. 1 slide groove 12 extending therethrough. It should be noted that the groove widths of the No. 1 slide groove 12 and the No. 2 slide groove 16 are equal and are symmetrically distributed on both sides of the center line. The inner sides of the two No. 1 slide grooves 12 and one No. 2 slide groove 16 are provided with a tetrahedral mechanism that enables the No. 1 slide groove 12 and the No. 2 slide groove 16 to cross and move relative to each other.

[0030] Please combine Figure 6 As shown, the tetrahedral mechanism includes a tetrahedral block 14 which is slidably connected to the inner sides of two No. 1 slide grooves 12 and one No. 2 slide groove 16 at the same time. The tetrahedral block 14 is made of cemented carbide material and has excellent wear resistance. The tetrahedral block 14 is a hexahedral structure, and the cross-section of the tetrahedral block 14 is a rhombus. A tetrahedral block driving mechanism is arranged below the tetrahedral block 14 to enable the tetrahedral block 14 to reciprocate up and down in the vertical direction.

[0031] Please combine Figure 2 and Figure 3 As shown, the four-sided block driving mechanism includes a pull rod 11 fixedly connected to the two ends of the two four-sided blocks 14 respectively, and the lower ends of the two pairs of pull rods 11 are commonly fixedly connected with a push plate 7. A push plate driving mechanism for making the push plate 7 reciprocate up and down is arranged below the push plate 7, and a push plate limiting mechanism for limiting the movement direction of the push plate 7 is arranged on the push plate 7.

[0032] Please combine Figure 2 As shown, the push plate driving mechanism includes a servo motor 4 fixedly connected to the bottom side of the clamp workbench 1, and the output end of the servo motor 4 is fixedly connected to a threaded rod 8 threadedly sleeved with the push plate 7, and the upper end of the threaded rod 8 is rotatably connected to the inner side of the upper surface of the clamp workbench 1. It should be noted that in other embodiments, in order to improve the accuracy of the clamp, the width of the push plate 7 can be adapted to the width of the No. 1 limit groove 6, that is, when the push plate 7 moves upward, it can slide up and down in the No. 1 limit groove 6.

[0033] Please combine Figure 2 As shown, the push plate limiting mechanism includes a plurality of limiting rods 5 fixedly connected to the bottom side of the clamp workbench 1, the plurality of limiting rods 5 are slidably connected to the push plate 7, the upper ends of the plurality of limiting rods 5 are fixedly connected to the inner side of the upper surface of the clamp workbench 1, and by providing a plurality of limiting rods 5, the push plate 7 can be prevented from shaking during the upward movement, thereby facilitating the improvement of the accuracy of the clamp.

[0034] Please combine Figure 1 As shown, the infrared measuring mechanism includes an infrared thickness gauge 3 fixedly connected to the upper side of the fixture workbench 1, and the infrared thickness gauge 3 is internally provided with a laser system, an imaging objective lens system, a photosensitive receiver system, and a signal processor measurement result display system.

[0035] The implementation principle of a fixture for measuring the thickness of an infrared absorption filter in the embodiment of the present application is as follows: start the servo motor 4, and push the push plate 7 to move upward through the threaded rod 8. The two ends of the push plate 7 can push the pull rod 11 to the top, thereby indirectly driving the four-sided block 14 to move upward. Since the No. 1 slide groove 12 and the No. 2 slide groove 16 intersect with each other to form a channel space, when the four-sided block 14 is in contact with the channel space, the upward movement of the four-sided block 14 can not only push the No. 1 connecting plate 10 and the No. 2 connecting plate 13 to each other to form a clamp, but also significantly improve the accuracy of the fixture. The use of an internal clamping drive can significantly reduce the system error of the fixture, which is convenient for the measurement work of the infrared oil measuring instrument.

[0036] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A fixture for measuring the thickness of an infrared absorption filter, comprising a fixture workbench (1), characterized in that: The clamp workbench (1) is provided with two No. 2 limit grooves (9), and a pair of mutually cooperating clamping blocks (2) are respectively arranged in the two No. 2 limit grooves (9). The lower side of the clamp workbench (1) is provided with a clamp driving mechanism for simultaneously driving the two pairs of clamping blocks (2) to clamp and fix the ultra-thin sheet, and the upper side of the clamp workbench (1) is provided with an infrared measuring mechanism for performing infrared non-contact measurement of the thickness of the ultra-thin sheet.

2. The infrared absorption filter thickness measurement fixture as claimed in claim 1, characterized in that: The clamp driving mechanism comprises a first connecting plate (10) and a second connecting plate (13) respectively fixedly connected to the lower side of each pair of clamping blocks (2); the first connecting plate (10) and the second connecting plate (13) are both slidably connected to the inner side of the second limiting groove (9); and the first connecting plate (10) and the second connecting plate (13) are provided with a limiting groove mechanism for bringing the two clamping blocks (2) close to each other at an equal distance.

3. The infrared absorption filter thickness measurement fixture as claimed in claim 2, characterized in that: The limit groove mechanism comprises an inner through groove (15) provided on the No. 1 connecting plate (10), a No. 2 slide groove (16) provided on the No. 2 connecting plate (13), the No. 1 connecting plate (10) being provided with a No. 1 slide groove (12) extending through the two sides of the inner through groove (15), and a tetrahedral mechanism for enabling the No. 1 slide groove (12) and the No. 2 slide groove (16) to cross and move relative to each other is provided on the inner sides of the two No. 1 slide grooves (12) and the one No. 2 slide groove (16).

4. The infrared absorption filter thickness measurement fixture as claimed in claim 3, characterized in that: The tetrahedral mechanism comprises a tetrahedral block (14) which is slidably connected to the inner sides of two No. 1 slide grooves (12) and a No. 2 slide groove (16) at the same time, the tetrahedral block (14) is a hexahedral structure, the cross section of the tetrahedral block (14) is a rhombus, and a tetrahedral block driving mechanism is arranged below the tetrahedral block (14) to enable the tetrahedral block (14) to reciprocate up and down in a vertical direction.

5. The infrared absorption filter thickness measurement placement fixture as claimed in claim 4, characterized in that: The four-sided block driving mechanism comprises a pull rod (11) fixedly connected to the two ends of the two four-sided blocks (14), the lower ends of the two pairs of pull rods (11) are commonly fixedly connected to a push plate (7), a push plate driving mechanism for causing the push plate (7) to reciprocate up and down is arranged below the push plate (7), and a push plate limiting mechanism for limiting the movement direction of the push plate (7) is arranged on the push plate (7).

6. The infrared absorption filter thickness measurement placement fixture as claimed in claim 5, characterized in that: The push plate driving mechanism comprises a servo motor (4) fixedly connected to the bottom side of the clamp workbench (1); the output end of the servo motor (4) is fixedly connected to a threaded rod (8) threadedly sleeved with the push plate (7); the upper end of the threaded rod (8) is rotatably connected to the inner side of the upper surface of the clamp workbench (1).

7. The infrared absorption filter thickness measurement fixture as claimed in claim 5, characterized in that: The push plate limiting mechanism comprises a plurality of limiting rods (5) fixedly connected to the bottom side of the clamp workbench (1); the plurality of limiting rods (5) are slidably connected to the push plate (7); and the upper ends of the plurality of limiting rods (5) are fixedly connected to the inner side of the upper surface of the clamp workbench (1).

8. The infrared absorption filter thickness measurement fixture as claimed in claim 1, characterized in that: The infrared measuring mechanism comprises an infrared thickness gauge (3) fixedly connected to the upper side of the fixture workbench (1), wherein the infrared thickness gauge (3) is provided with a laser system, an imaging objective lens system, a photoelectric potential sensitive receiver system, and a signal processor measurement result display system.

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