Distribution photometer clamp with automatic centering function

Abstract

The invention discloses a distribution photometer clamp with an automatic centering function, and belongs to the technical field of lamp test equipment, the distribution photometer clamp comprises a back plate, the back plate is provided with two clamping plates, the two clamping plates are used for clamping a lamp, the distance between the two clamping plates is adjustable, and the clamping plates are used for clamping the lamp. The back plate is provided with an adjusting mechanism used for adjusting the distance between the two clamping plates. According to the invention, the common problems of inconvenient fixation and easy central position deviation of the lamp fixture for the distribution photometer in the prior art are solved.

Description

Technical Field

[0001] The invention relates to the technical field of lamp testing equipment, and in particular to a distribution photometer fixture with an automatic centering function. Background Art

[0002] The goniophotometer is mainly used to measure the photometric performance of lamps and light sources, that is, the distribution of the photometric and colorimetric values ​​of the laser source of the lamp in different directions in space. The data measured by the goniophotometer will be different depending on the position of the lamp or light source. After multiple measurements, a more comprehensive evaluation of the photometric performance of the lamp can be made.

[0003] When testing lamps, it is necessary to use customized fixtures to fix the lamps on various forms of mounting plates to meet the requirements of distributed photometry testing. The photometric center of the lamp must be located at the rotation center of the distributed photometer, and the normal line of the lamp's light-emitting surface must coincide with the normal line of the distributed photometer's probe.

[0004] Regarding the above-mentioned related technologies, it was found during use that different mounting plates need to be replaced when detecting different lamps, and it is impossible to ensure that the normal line of the light-emitting surface of the lamp and the normal line of the probe of the distribution photometer are absolutely coincident, which is inconvenient to operate and needs to be improved. Summary of the invention

[0005] The invention aims at the deficiencies in the prior art and provides a distribution photometer fixture with an automatic centering function.

[0006] The technical solution of the present invention to solve the above technical problems is as follows:

[0007] A distribution photometer fixture with automatic centering function comprises a back plate, the back plate is provided with a clamping plate, two clamping plates are provided for clamping a lamp, the distance between the two clamping plates is adjustable, and the back plate is provided with an adjustment mechanism for adjusting the distance between the two clamping plates.

[0008] By adopting the above scheme, the distance between the two clamps is adjusted by the adjustment mechanism, and then the lamp is placed between the two clamps, and the distance between the two clamps is adjusted again, so that the two clamps move towards each other, that is, the distance between the two clamps is reduced, so that the two clamps can clamp the lamp and fix it, which is more convenient for clamping the lamp. The position of the lamp is adjusted by adjusting the position of the two clamps, thereby ensuring that the normal of the light-emitting surface of the lamp and the normal of the probe of the distribution photometer are absolutely coincident.

[0009] Furthermore, the outer sleeve of the clamping plate is provided with a self-locking tensioner for fixing the lamp.

[0010] By adopting the above solution, the provision of the self-locking tensioner can further achieve the purpose of fixing the position of the lamp.

[0011] Furthermore, a screw for assisting in positioning the lamp is provided on the outside of the clamping plate.

[0012] Furthermore, the screw rod is provided in plurality.

[0013] By adopting the above solution, after the self-locking tensioner fixes the lamp, the operator can further achieve the purpose of fixing the position of the lamp by rotating the screw.

[0014] Furthermore, a pressing sheet is provided at the end of each screw.

[0015] By adopting the above solution, the arrangement of the pressing sheet can increase the contact area with the lamp, further improving the purpose of fixing the lamp.

[0016] Furthermore, the clamping plate is L-shaped.

[0017] Furthermore, inclined surfaces are arranged on both sides of the surfaces of the two clamping plates that are close to each other.

[0018] By adopting the above solution, when the two clamps are clamping the lamp, the four inclined surfaces on the two L-shaped clamps can adapt to rectangular, cubic or flat lamps, that is, the setting of the inclined surfaces can provide avoidance space for non-cylindrical lamps, thereby improving the adaptability of the lamps.

[0019] Furthermore, the adjustment mechanism includes a base plate arranged on one side of the back plate, and a bidirectional screw rod is rotatably connected to the base plate. The two clamps are connected to the bidirectional screw rod through a slider, and the distance between the two clamps is adjusted by rotating the bidirectional screw rod.

[0020] By adopting the above solution, the two clamps are respectively installed at the two ends of the bidirectional screw rod. The distance between the two clamps can be adjusted by rotating the bidirectional screw rod so that the clamps can clamp and fix the lamp, making the clamping and fixing of the lamp more convenient and easy.

[0021] Furthermore, guide rods are provided on both sides of the bidirectional screw rod, the guide rods penetrate the slider, and the slider is slidably connected to the guide rods.

[0022] By adopting the above solution, when the slider drives the clamping plate to slide, the setting of the guide rod makes the sliding of the clamping plate more stable.

[0023] Furthermore, the bidirectional screw is driven by a hand wheel or a motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0025] Figure 2 This is a structural schematic diagram highlighting the guide rod according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram showing the structure of the tablet pressing according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic structural diagram highlighting the first plate and the second plate in an embodiment of the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of the lamp and the clamping plate when assembled according to the embodiment of the present invention.

[0029] Explanation of the accompanying drawings: 1. back plate; 2. bottom plate; 3. clamping plate; 4. first plate body; 5. second plate body; 6. bidirectional screw rod; 7. slider; 8. guide rod; 9. self-locking tensioner; 10. screw rod; 11. pressure plate; 12. hand wheel; 13. inclined plane; 14. adjustable tightening handle bolt. DETAILED DESCRIPTION

[0030] The principles and features of the present invention are described below in conjunction with all the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0031] The embodiment of the invention discloses a distribution photometer fixture with an automatic centering function.

[0032] Reference Figure 1-Figure 5 A distribution photometer fixture with automatic centering function includes a back plate 1, the back plate 1 is provided with a clamping plate 3, the clamping plate 3 is an L-shaped structure, two clamping plates 3 are provided, a lamp is placed between the two clamping plates 3, and the lamp can be clamped by the two clamping plates 3, such as Figure 5 As shown; the distance between the two clamps 3 is adjustable, and the back plate 1 is provided with an adjustment mechanism for adjusting the distance between the two clamps 3.

[0033] The adjustment structure includes a bottom plate 2 arranged on one side of the back plate 1. Figure 1 For example, the right side of the bottom plate 2 is rotatably connected with a bidirectional screw 6, and the two clamps 3 are connected to the bidirectional screw 6 through a slider 7, and the spacing between the two clamps 3 is adjusted by rotating the bidirectional screw 6. The distance between the two clamps 3 can be adjusted by rotating the bidirectional screw 6, and then the lamp is placed between the two clamps 3, and the spacing between the two clamps 3 is adjusted again, so that the two clamps 3 move toward each other, that is, the distance between the two clamps 3 is reduced, so that the two clamps 3 can clamp the lamp, which is more convenient for clamping the lamp. The position of the lamp is adjusted by adjusting the position of the two clamps 3 to ensure that the normal of the light-emitting surface of the lamp and the normal of the probe of the distribution photometer are absolutely coincident.

[0034] Both sides of the bidirectional screw rod 6 are provided with guide rods 8, and the guide rods 8 are fixed on the bottom plate 2. Figure 2As shown, the guide rod 8 penetrates the slider 7, and the slider 7 is slidably connected to the guide rod 8. When the slider 7 drives the clamping plate 3 to slide, the setting of the guide rod 8 makes the sliding of the clamping plate 3 more stable.

[0035] The bidirectional screw rod 6 is driven by a hand wheel 12 or a motor. In the present embodiment, the rotation of the bidirectional screw rod 6 is driven by the hand wheel 12. The bidirectional screw rod 6 can be rotated by rotating the hand wheel 12. By the driving mode of rotating the hand wheel 12, the adjustment of the splint 3 can be more accurately controlled.

[0036] A lockable bolt is provided at the rotating shaft of the hand wheel 12 (connected to the bidirectional screw rod 6), and the bolt is an adjustable tightening handle bolt 14. When the hand wheel 12 is rotated to drive the two clamping plates 3 to move, that is, after the lamp is clamped, the adjustable tightening handle bolt 14 enables the clamp to maintain a certain clamping force. The adjustable tightening handle bolt 14 is commonly known as an adjustable handle, a locking handle, or a universal handle.

[0037] The overall clamping of the present invention does not require the use of tools, and is tool-free clamping, which is convenient to operate and saves time and effort.

[0038] The outside of the clamping plate 3 is provided with a self-locking tensioner 9 for fixing the lamp. The self-locking tensioner 9 is sleeved on the outside of the two clamping plates 3, and the self-locking tensioner 9 has a tensioning function. When the lamp is placed between the two clamping plates 3 and fixed, the setting of the self-locking tensioner 9 can achieve the purpose of secondary locking of the lamp, thereby improving the firmness of the locking of the lamp.

[0039] The outside of the clamp 3 is provided with a screw 10 for assisting in positioning the lamp. In the present embodiment, three screws 10 are provided on the outside of each clamp 3. The screw 10 is threadedly connected to the clamp 3. A rotating part, such as a hand wheel, is provided at the outer end of the screw 10. After the lamp is fixed, the operator twists the screw 10 to make the end of the screw 10 contact with the outer wall of the lamp, thereby fixing the lamp again and ensuring that the lamp is firmly fixed.

[0040] A pressing plate 11 is provided at the end of each screw rod 10 . The diameter of the pressing plate 11 is larger than the diameter of the screw rod 10 . The provision of the pressing plate 11 can increase the contact area between the screw rod 10 and the lamp, further improving the fixing effect on the lamp.

[0041] Each clamping plate 3 is penetrated by a plurality of elongated holes or circular holes. When clamping a special-shaped lamp, such as a lamp with a rod or an axis, the elongated holes or circular holes can provide a space for the structure on the special-shaped lamp.

[0042] The two sides of the two clamping plates 3 close to each other are provided with inclined surfaces 13, such as Figure 4As shown, taking one of the clamps 3 as an example, the clamp 3 includes a first plate body 4 and a second plate body 5, and the first plate body 4 and the second plate body 5 are fixed to form an L-shaped structure of the clamp 3, and the inclined surface 13 is located on the side where the opening ends of the clamp 3 are close to each other. When the two clamps 3 are clamped with the lamp, the four inclined surfaces 13 on the two L-shaped clamps 3 can adapt to rectangular, cubic or flat lamps, that is, the setting of the inclined surfaces 13 can provide avoidance space for non-cylindrical lamps, thereby improving the adaptability of the lamps.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A goniophotometer fixture with automatic centering function, characterized in that: The invention comprises a back plate (1), wherein the back plate (1) is provided with a clamping plate (3), wherein two clamping plates (3) are provided and are used to clamp a lamp, wherein the distance between the two clamping plates (3) is adjustable, and wherein the back plate (1) is provided with an adjusting mechanism for adjusting the distance between the two clamping plates (3).

2. The goniophotometer fixture with automatic centering function according to claim 1, characterized in that: The exterior of the clamping plate (3) is sleeved with a self-locking tensioner (9) for fixing the lamp.

3. The goniophotometer fixture with automatic centering function according to claim 1, characterized in that: The outside of the clamping plate (3) is provided with a screw rod (10) for assisting in positioning the lamp.

4. The goniophotometer fixture with automatic centering function according to claim 3, characterized in that: The screw rod (10) is provided in plurality.

5. A distribution photometer fixture with automatic centering function according to claim 3 or 4, characterized in that: A pressing sheet (11) is provided at the end of each screw rod (10).

6. The goniophotometer fixture with automatic centering function according to claim 1, characterized in that: The clamping plate (3) is L-shaped.

7. The goniophotometer fixture with automatic centering function according to claim 6, characterized in that: Inclined surfaces (13) are provided on both sides of the surfaces of the two clamping plates (3) that are close to each other.

8. The goniophotometer fixture with automatic centering function according to claim 1, characterized in that: The adjustment mechanism comprises a bottom plate (2) arranged on one side of the back plate (1); a bidirectional screw rod (6) is rotatably connected to the bottom plate (2); the two clamping plates (3) are connected to the bidirectional screw rod (6) via a slider (7); and the distance between the two clamping plates (3) is adjusted by rotating the bidirectional screw rod (6).

9. The goniophotometer fixture with automatic centering function according to claim 8, characterized in that: Guide rods (8) are provided on both sides of the bidirectional screw rod (6); the guide rods (8) penetrate the slider (7); and the slider (7) is slidably connected to the guide rods (8).

10. A goniophotometer fixture with automatic centering function according to claim 8 or 9, characterized in that: The bidirectional screw rod (6) is driven by a hand wheel (12) or a motor.

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