CN212904523U

CN212904523U - Device for detecting spectrum transmittance

Info

Publication number: CN212904523U
Application number: CN202020603228.0U
Authority: CN
Inventors: 白仲文; 刘烈敏
Original assignee: Canneed Instrument Group Ltd; Dongguan Jieyang Photoelectric Technology Co ltd
Current assignee: Canneed Instrument Group Ltd; Dongguan Jieyang Photoelectric Technology Co ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2021-04-06
Anticipated expiration: 2030-04-21

Abstract

The utility model discloses a device for detecting spectrum transmittance, which comprises a turntable assembly and a light transmittance detection assembly, wherein a feeding station, a correction station, a detection station and a discharging station are uniformly distributed in the circumferential direction of the turntable assembly according to the procedures, and the light transmittance detection assembly is arranged on the detection station; luminousness determine module includes X axle moving part, Y axle moving part and determine section, and X axle moving part and Y axle moving part all include step motor, ball, linear slide and photoelectric switch etc. determine section includes light source device, objective, integrating sphere, spectrum appearance, speculum, light source processing apparatus, light path module and camera, and the carousel subassembly includes motor, motor transition piece, carousel, vacuum pipeline and sucking disc. The utility model discloses an automated inspection of spectrum transmissivity, easy operation, it is high to detect the precision, is applicable to the detection of domestic and foreign cell-phone panel IR printing ink hole transmissivity.

Description

Device for detecting spectrum transmittance

Technical Field

The utility model relates to a detecting instrument technical field, more specifically the spectrum transmittance detects type instrument is related to that says so.

Background

At present, the brightness of a touch display screen has a function of automatically adjusting along with the brightness of an external environment, and when some display screens change from the bright environment to the dark environment, the screen brightness adjustment makes human eyes feel uncomfortable, so that the watching is influenced. The phenomenon can be caused if the transmittance of the screen environment light hole for visible light is not accurately detected, so that some instruments aiming at the screen transmittance detection are produced in the market.

However, the current domestic detection instrument for the environmental light hole has the following three problems:

1. when the transmittance is detected, an operation mode of manually detecting one piece and then replacing the other piece is adopted, and the time for replacing the middle piece is long, so that the labor cost is wasted, and the detection efficiency is reduced.

2. When the transmittance is detected, the ambient light hole of the screen to be detected and the light spot of the light source are manually aligned, and the detection result is inaccurate due to errors in manual operation.

3. When the transmittance is detected, the manual operation is needed, and the detection automation degree is low.

Therefore, it is an urgent need to solve the problem of providing a highly efficient and automated transmittance detection device.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a detect device of spectral transmittance has realized full automated inspection spectral transmittance, easy operation, and the detection precision is high, is applicable to the detection of domestic and foreign cell-phone panel IR printing ink hole transmittance.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an apparatus for detecting spectral transmittance, comprising: the device comprises a turntable assembly and a light transmittance detection assembly;

the light transmittance detection assembly is arranged on the detection station.

Further, the light transmittance detection assembly comprises an X-axis moving part, a Y-axis moving part and a detection part, wherein the X-axis moving part is connected with the Y-axis moving part, and the Y-axis moving part is connected with the detection part.

Further, the detection part comprises a light source device, an objective lens, an integrating sphere, a spectrometer, a reflector, a light source processing device, a light path module and a camera;

the light beam emitted by the light source device is converted into a parallel light beam through the light source processing device, the parallel light beam is reflected to the objective lens through the reflector, the objective lens focuses the parallel light beam into a light spot, the light spot penetrates through an ambient light hole of a display screen to be measured and enters the integrating sphere, and the integrating sphere measures the luminous flux and then transmits the luminous flux to the spectrometer for light transmittance analysis;

the reflected light beam of the display screen to be detected passes through the objective lens for imaging, and the imaging light beam sequentially passes through the reflector and the light path module to be converted into parallel light beams and then transmitted to the camera.

Further, the light source processing device sequentially comprises a diaphragm, a first lens, a second lens and a third lens according to the light propagation direction.

Furthermore, the light path module comprises a fourth lens, a fifth lens and a sixth lens in sequence according to the light propagation direction.

Further, the X-axis moving part includes an X-axis fixing plate, a first linear guide rail, a first photoelectric switch, a photoelectric guide rail, a first bearing block, a first ball screw, a first screw nut, a first nut block, a first light sensing sheet, a first coupling, a first motor block, and a first stepping motor, the X-axis fixing plate is mounted on the frame, the guide rail of the first linear guide rail is fixed on the upper surface of the X-axis fixing plate, the first bearing block, the first motor block, and the photoelectric guide rail are fixed on the lower surface of the X-axis fixing plate, the first bearing block and the first motor block are sleeved on both ends of the first ball screw, the first screw nut is sleeved on the first ball screw and located between the first bearing block and the first motor block, the first nut block is connected with the first screw nut, the first light sensing sheet is fixed on the first nut block, the first stepping motor is fixed on the first motor base, two ends of the first coupler are respectively sleeved on the first stepping motor and the first ball screw, and the first photoelectric switch is fixed on the photoelectric guide rail;

the Y-axis moving part comprises a Y-axis fixing plate, a second stepping motor, a second motor seat, a second coupler, a second light sensing sheet, a second nut seat, a second screw nut, a second ball screw, a second linear guide rail, a second bearing seat, a photoelectric slide rail seat, a second photoelectric switch and a photoelectric slide rail, the second motor seat, the guide rail of the second linear guide rail, the second bearing seat and the photoelectric slide rail seat are fixed on the upper surface of the Y-axis fixing plate, the second bearing seat and the second motor seat are sleeved at two ends of the second ball screw, the second screw nut is sleeved on the second ball screw and positioned between the second bearing seat and the second motor seat, the second nut seat is connected with the second screw nut, the second light sensing sheet is fixed on the second nut seat, and the second stepping motor is fixed on the second motor seat, two ends of the second coupler are respectively sleeved on the second stepping motor and the second ball screw, the photoelectric slide rail is fixed on the photoelectric slide rail seat, and the second photoelectric switch is fixed on the photoelectric slide rail;

the Y-axis fixing plate is fixedly connected with a sliding block of the first linear guide rail, the sliding block of the first linear guide rail is connected with a guide rail of the first linear guide rail in a sliding mode, the Y-axis fixing plate is connected with the first nut seat, the detection portion is fixedly connected with a sliding block of the second linear guide rail, the sliding block of the second linear guide rail is connected with a guide rail of the second linear guide rail in a sliding mode, and the detection portion is connected with the second nut seat.

Further, the carousel subassembly includes motor, motor transition piece, carousel, vacuum line and sucking disc, the motor with the motor transition piece is connected, the motor transition piece with carousel threaded connection, the sucking disc is evenly fixed carousel surface edge, just the sucking disc intercommunication vacuum line.

Furthermore, the number of the suckers is 4, and the suckers are correspondingly arranged on a feeding station, a correcting station, a detecting station and a discharging station respectively.

Further, the device further comprises a processor, and the processor is electrically connected with the spectrograph and the camera respectively.

Further, the camera is a CCD camera.

According to the technical scheme, compare with prior art, the utility model provides a detect device of spectrum transmissivity, luminousness detection subassembly install the detection station that carousel subassembly corresponds, wherein hold the display screen that awaits measuring on the material loading station, and the carousel subassembly is rotatory 90 degrees to the correction process and is rectified, and rotatory 90 degrees carries out the transmissivity to detecting the station again after having rectified and detects, then the carousel subassembly is rotatory 90 degrees to unloading station again and to having surveyed the screen unloading. The utility model discloses each station has accomplished corresponding process automatically, does not need manual operation mode, has realized the full automatization, has improved detection efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an apparatus for detecting spectral transmittance according to the present invention.

Fig. 2 is a schematic structural diagram of the turntable assembly according to the present invention.

Figure 3 the attached drawing is the utility model provides a luminousness detect subassembly schematic structure.

Fig. 4 is a schematic structural diagram of the X-axis moving part provided by the present invention.

Fig. 5 is a schematic structural diagram of the Y-axis moving part provided by the present invention.

Fig. 6 is a schematic structural diagram of the detection part provided by the present invention.

Fig. 7 is a schematic diagram of the optical path transmission of the detection portion provided by the present invention.

Wherein the content of the first and second substances,

1. a turntable assembly, 11, a motor, 12, a motor transition piece, 13, a turntable, 14, a suction cup, 2, a light transmittance detection assembly, 21, an X-axis moving part, 211, an X-axis fixing plate, 212, a first linear guide, 213, a first photoelectric switch, 214, a photoelectric guide, 215, a first bearing seat, 216, a first ball screw, 217, a first screw nut, 218, a first nut seat, 219, a first light sensing sheet, 2110, a first coupler, 2111, a first motor seat, 2112, a first stepping motor, 22, a Y-axis moving part, 221, a Y-axis fixing plate, 222, a second stepping motor, 223, a second motor seat, 224, a second coupler, 225, a second light sensing sheet, 226, a second nut seat, 227, a second screw nut, 228, a second ball screw, 229, a second linear guide, 2211, a second bearing seat, a photoelectric slide seat, 2212, a second photoelectric switch, 2213. photoelectric slide rail, 23, detection part, 231, light source device, 232, objective lens, 233, integrating sphere, 234, spectrometer, 235, reflector, 236, light source processing device, 2361, diaphragm, 2362, first lens, 2363, second lens, 2364, third lens, 237, optical path module, 2371, fourth lens, 2372, fifth lens, 2373, sixth lens, 238, camera, 3, treater, 4, the display screen that awaits measuring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment of the utility model discloses detect device of spectrum transmissivity, as shown in fig. 1, including carousel subassembly 1 and luminousness determine module 2, carousel subassembly 1 is along the circumferencial direction according to four big subassemblies of process evenly distributed material loading, correction, detection and unloading, and wherein material loading, correction and unloading subassembly do not show in the picture.

As shown in fig. 2, the turntable assembly 1 includes a motor 11, a motor transition piece 12, a turntable 13, a vacuum pipeline and four suckers 14, wherein the suckers 14 are arranged in number, the four suckers are uniformly distributed on the edge of the turntable 13, the motor 11 is connected with the motor transition piece 12, the motor transition piece 12 is fixed on the turntable 13, the suckers 14 are communicated with the vacuum pipeline, and specifically, the motor 11 can be arranged as a dripping motor. During practical application, a display screen to be tested is placed on the suction cups 14 corresponding to the feeding stations, then the suction cups 14 are vacuumized through vacuum pipelines, the display screen to be tested is adsorbed on the suction cups, the motor 11 rotates to drive the motor transition piece 12 to move, the motor transition piece 12 drives the rotary table 13 to rotate, the rotary table 13 stops for a period of time after rotating for 90 degrees, and the stations in the period of time complete corresponding processes. In the process, the rotary disc 13 rotates repeatedly and mainly synchronously to complete the continuous feeding, correcting, transmittance detecting and discharging processes, so that the detection waiting time is shortened, and the efficiency is improved.

As shown in fig. 3, the transmittance detection unit 2 includes an X-axis moving section 21, a Y-axis moving section 22, and a detection section 23 in this order from bottom to top. The X-axis moving part 21 and the Y-axis moving part 22 can move towards the X axis and the Y axis respectively, so that the detection part 23 is driven to move in a plane, and alignment of the ambient light hole of the display screen to be detected and the light spot of the light source of the detection part is completed. The X-axis moving part and the Y-axis moving part adopt structures such as a stepping motor, a ball screw, a linear slide rail, a photoelectric switch and the like and are combined with the imaging condition of a CCD camera, so that the position correction of the ambient light hole and the light source light spot of the screen to be detected is more accurate.

As shown in fig. 4 and 5, the X-axis moving part 21 includes an X-axis fixing plate 211, a first linear guide 212, a first photoelectric switch 213, a photoelectric guide 214, a first bearing seat 215, a first ball screw 216, a first screw nut 217, a first nut seat 218, a first light sensing piece 219, a first coupling 2110, a first motor seat 2111, and a first stepping motor 2112, the X-axis fixing plate 211 is mounted on the frame, the guide of the first linear guide 212 is fixed on the upper surface of the X-axis fixing plate 211, the first bearing seat 215, the first motor seat 2111, and the photoelectric guide 214 are fixed on the lower surface of the X-axis fixing plate 211, the first shaft 215 and the first motor seat 2111 are fitted on both ends of the first ball screw 216, the first screw nut 217 is fitted on the first ball screw 216 and is located between the first bearing seat 215 and the first motor seat 2111, the first nut seat 218 is connected to the first screw nut 217 by a screw, the first light sensing sheet 219 is fixed on the first nut base 218 by a screw, the first stepping motor 2112 is fixed on the first motor base 2111, two ends of the first coupling 2110 are respectively sleeved on a shaft of the first stepping motor 2112 and the first ball screw 216, and the first photoelectric switch 213 is fixed on the photoelectric guide rail 214;

the Y-axis moving part 22 includes a Y-axis fixing plate 221, a second stepping motor 222, a second motor base 223, a second coupling 224, a second light sensing sheet 225, a second nut base 226, a second screw nut 227, a second ball screw 228, a second linear guide 229, a second bearing base 2210, a photoelectric slide rail base 2211, a second photoelectric switch 2212 and a photoelectric slide rail 2213, the second motor base 223, the guide rail of the second linear guide 229, the second bearing base 2210 and the photoelectric slide rail base 2211 are fixed on the upper surface of the Y-axis fixing plate 221, the second bearing base 2210 and the second motor base 223 are sleeved on both ends of the second ball screw 228, the second screw nut 227 is sleeved on the second ball screw 228 and positioned between the second bearing base 2210 and the second motor base 223, the second nut base 226 is connected to the second screw nut 227 by a screw, the second light sensing sheet 225 is fixed to the second nut base 226 by a screw, the second stepping motor 222 is fixed to the second motor base 223, two ends of the second coupling 224 are respectively sleeved on the shaft of the second stepping motor 222 and the second ball screw 228, the photoelectric slide rail 2213 is fixed on the photoelectric slide rail seat 2211, and the second photoelectric switch 2212 is fixed on the photoelectric slide rail 2213;

as shown in fig. 4, the X-axis moving part is provided with two first photoelectric switches 213, which are respectively mounted on the photoelectric guide rails 214, corresponding to the origin and the extreme positions during the movement of the first ball screw nut 217 when it is designed, to ensure that the first ball screw nut 217 moves between the origin and the extreme positions. When the first stepping motor 2112 rotates to drive the first coupling 2110 to rotate, the first coupling 2110 drives the first ball screw 216 to rotate, the first ball screw 216 drives the first screw nut 217 to move along the screw direction, and the first screw nut 217 drives the first nut holder 218 and the first light sensing sheet 219 to move along the screw direction. If the first light sensing piece 219 moves to the limit position, the first photoelectric switch 213 corresponding to the limit position feeds back a signal to the control system, and at this time, the system gives an alarm and prompts the reset of the original point, thereby realizing the movement in the X-axis direction.

As shown in fig. 5, the Y-axis moving part is provided with two second photoelectric switches 2212, which are respectively mounted on the photoelectric slide rail seats 2211, and ensure that the second ball screw nut 227 moves between the origin and the extreme positions corresponding to the origin and extreme positions during the movement of the second ball screw nut 227 during the design. When the second stepping motor 222 rotates to drive the second coupling 224 to rotate, the second coupling 224 drives the second ball screw 228 to rotate, the second ball screw 228 drives the second screw nut 227 to move along the screw direction, and the second screw nut 227 drives the second nut holder 226 and the second light sensing sheet 225 to move along the screw direction. If the second light sensing piece 225 moves to the limit position, the second photoelectric switch 2212 corresponding to the limit position feeds back a signal to the control system, and at this time, the system gives an alarm and prompts the reset of the original point, so that the movement in the Y-axis direction is realized.

It should be noted that the control program and the like of the control system are realized by adopting the prior art, the utility model discloses do not do any improvement, only improved the device structure.

The Y-axis fixing plate 221 is fixedly connected to the slider of the first linear guide 212, the slider of the first linear guide 212 is slidably connected to the slide rail, the Y-axis fixing plate 221 is fixedly connected to the first nut holder 218 by a screw, the detecting portion 23 is fixedly connected to the slider of the second linear guide 229, the second nut holder 226 by a screw, and the slider of the second linear guide 229 is slidably connected to the slide rail.

As shown in fig. 6 and 7, the detecting portion 23 includes a light source device 231, an objective lens 232, an integrating sphere 233, a spectrometer 234, a reflector 235, a light source processing device 236, an optical path module 237 and a CCD camera 238, wherein the upper surface of the integrating sphere 233 is slightly lower than the upper surface of the suction cup, and the objective lens 232 is disposed above the integrating sphere 233.

In this embodiment, the light source device 231 is a halogen lamp generator, and needs to detect the light transmittance of the glass sheet at different wavelength bands of 400-. Integrating sphere 233 is a hollow sphere with an inner wall coated with a white diffuse reflection material, and the wall of the sphere is provided with two holes for a light inlet and a receiving hole for placing a light receiving device, and light is collected by the integrating sphere through the light inlet and is scattered inside the integrating sphere uniformly after being reflected for many times, so that the light flux is measured by using the integrating sphere, and the measurement result is more reliable.

Spectrometer 234 can be the spectral line with the light decomposition that the composition is complicated, the utility model discloses in mainly carry out data analysis to integrating sphere 233's luminous flux, detect the display screen environment unthreaded hole transmissivity that awaits measuring. The light source processing device 236 comprises a diaphragm 2361, a first lens 2362, a second lens 2363 and a third lens 2364 in sequence according to the propagation direction of light rays, and mainly changes the divergent light beams into parallel light beams.

The objective lens 232 can be used not only to focus light when detecting transmittance, but also to image an object below the objective lens. The optical path module 237 sequentially includes a fourth lens 2371, a fifth lens 2372 and a sixth lens 2373 according to the propagation direction of light, and the structure and principle of the optical path module are the same as those of the first lens 2362, the second lens 2363 and the third lens 2364, so that the diverging light beams are mainly changed into parallel light beams.

The CCD camera 238 can image the objective 232 and transmit the image to the processor, wherein the processor can be set as a computer, and human eyes can observe whether the ambient light hole of the display screen to be detected falls on the detection hole or not on the computer, so that the reference can be clearly observed, the position can be accurately positioned, and the human eyes can also clearly see whether the detection spot is in the center of the detection hole or not.

The specific transmission path is as follows: the light source device 231 emits incident light, the incident light enters the light source processing device 236 through the coupling optical fiber, the light enters the objective lens 232 after being reflected by the reflector 235 and is focused into a light spot, the light spot passes through an ambient light hole of the display screen 4 to be measured and enters the integrating sphere 233 for measurement, and data obtained by the measurement is transmitted to the spectrometer 234 for light transmittance analysis.

The reflected light beam of the display screen 4 to be detected enters the CCD camera 238 after being transmitted by the objective lens 232 and the light path module 237, and a dynamic image can be generated on the computer, and at this time, the detection part 23 can be driven to move by moving the X-axis moving part and the Y-axis moving part according to the image, so that the light inlet of the integrating sphere is adjusted to be aligned with the center of the ambient light hole of the display screen to be detected, and the light spot can be accurately irradiated in the detection hole of the display screen to be detected, thereby realizing the accurate positioning of the display screen to be detected and improving the accuracy.

The utility model discloses a working process does:

the display screen 4 to be detected is placed on the sucking disc, after the turntable rotates to a detection station, an environment light hole of the display screen to be detected is aligned to a light inlet hole of the integrating sphere 233 through the movement of the X-axis moving part 21 and the Y-axis moving part 22 and is combined with a CCD camera of the detection part for imaging observation, the light source device 231 is started to emit light beams, the light beams enter the light source processing device 236 through the optical coupling fiber, the light source processing device 236 changes the divergent light beams into parallel light beams, the parallel light beams are reflected to the objective lens 232 through the reflector 235, the parallel light beams passing through the objective lens 232 are focused into light spots, the light spots penetrate through the detection hole of the display screen to be detected to enter the integrating sphere 233 for processing, and the processed data are transmitted to the spectrometer.

The utility model has the advantages of it is following:

1. the manual operation mode that one is detected and then replaced is changed, continuous feeding and detection are achieved, labor is saved, and detection efficiency is improved.

2. The position correction of the ambient light hole and the light source light spot of the display screen to be detected is realized by adopting a structure of a stepping motor and a ball screw and combining CCD camera imaging, so that the error is reduced, the correction is more accurate, and the correction speed is increased.

3. Manual operation procedures are reduced, and the transmittance detection change is more automatic.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An apparatus for detecting spectral transmittance, comprising: the device comprises a turntable assembly (1) and a light transmittance detection assembly (2);

the light transmittance detection device is characterized in that a feeding station, a correction station, a detection station and a discharging station are uniformly distributed in the circumferential direction of the turntable assembly (1) according to the working procedures, and the light transmittance detection assembly (2) is arranged on the detection station.

2. The apparatus for detecting spectral transmittance according to claim 1, wherein the transmittance detecting unit (2) comprises an X-axis moving part (21), a Y-axis moving part (22) and a detecting part (23), the X-axis moving part (21) and the Y-axis moving part (22) are connected, and the Y-axis moving part (22) and the detecting part (23) are connected.

3. The apparatus for detecting spectral transmittance according to claim 2, wherein the detecting portion (23) comprises a light source device (231), an objective lens (232), an integrating sphere (233), a spectrometer (234), a reflector (235), a light source processing device (236), an optical path module (237) and a camera (238);

the light beam emitted by the light source device (231) is changed into a parallel light beam through the light source processing device (236), the parallel light beam is reflected to the objective lens (232) through the reflector (235), the objective lens (232) focuses the parallel light beam into a light spot, the light spot passes through an ambient light hole of a display screen (4) to be measured and enters the integrating sphere (233), and the integrating sphere (233) measures the light flux and transmits the light flux to the spectrometer (234) for light transmittance analysis;

the reflected light beam of the display screen (4) to be detected is imaged through the objective lens (232), and the imaged light beam is transmitted to the camera (238) after being changed into parallel light beams through the reflector (235) and the light path module (237) in sequence.

4. A device for detecting spectral transmittance according to claim 3, wherein the light source processing means (236) comprises a diaphragm (2361), a first lens (2362), a second lens (2363) and a third lens (2364) in this order according to the light propagation direction.

5. The device for detecting spectral transmittance according to any one of claims 3 or 4, wherein the optical path module (237) comprises a fourth lens (2371), a fifth lens (2372) and a sixth lens (2373) in sequence according to the light propagation direction.

6. The apparatus for detecting spectral transmittance according to claim 5, wherein the X-axis moving portion (21) comprises an X-axis fixing plate (211), a first linear guide (212), a first photoelectric switch (213), a photoelectric guide (214), a first bearing seat (215), a first ball screw (216), a first screw nut (217), a first nut seat (218), a first light sensing sheet (219), a first coupling (2110), a first motor seat (2111) and a first stepping motor (2112), the X-axis fixing plate (211) is mounted on a frame, the guide of the first linear guide (212) is fixed on the upper surface of the X-axis fixing plate (211), the first bearing seat (215), the first motor seat (2111) and the photoelectric guide (214) are disposed on the lower surface of the X-axis fixing plate (211), and the first bearing seat (215) and the first motor seat (2111) are sleeved on the first ball screw (216) The first lead screw nut (217) is sleeved on the first ball screw (216) and located between the first bearing seat (215) and the first motor seat (2111), the first nut seat (218) is connected with the first lead screw nut (217), the first light sensing sheet (219) is fixed on the first nut seat (218), the first stepping motor (2112) is fixed on the first motor seat (2111), two ends of the first coupling (2110) are respectively sleeved on the first stepping motor (2112) and the first ball screw (216), and the first photoelectric switch (213) is fixed on the photoelectric guide rail (214);

the Y-axis moving part (22) comprises a Y-axis fixing plate (221), a second stepping motor (222), a second motor base (223), a second coupler (224), a second light sensing sheet (225), a second nut base (226), a second screw nut (227), a second ball screw (228), a second linear guide rail (229), a second bearing block (2210), an optoelectronic slide rail base (2211), a second optoelectronic switch (2212) and an optoelectronic slide rail (2213), wherein the second motor base (223), the guide rail of the second linear guide rail (229), the second bearing block (2210) and the optoelectronic slide rail base (2211) are fixed on the upper surface of the Y-axis fixing plate (221), the second bearing block (2210) and the second motor base (223) are sleeved at two ends of the second ball screw (228), the second screw nut (227) is sleeved on the second ball screw (228) and is located between the second bearing block (2210) and the second motor base (223) The second nut seat (226) is connected to the second lead screw nut (227), the second light sensing sheet (225) is fixed to the second nut seat (226), the second stepping motor (222) is fixed to the second motor seat (223), two ends of the second coupling (224) are respectively sleeved on the second stepping motor (222) and the second ball screw (228), the photoelectric sliding rail (2213) is fixed to the photoelectric sliding rail seat (2211), and the second photoelectric switch (2212) is fixed to the photoelectric sliding rail (2213);

the Y-axis fixing plate (221) is fixedly connected to a slider of the first linear guide (212), the slider of the first linear guide (212) is slidably connected to a guide of the first linear guide (212), the Y-axis fixing plate (221) is connected to the first nut block (218), the detecting portion (23) is fixedly connected to a slider of the second linear guide (229), the slider of the second linear guide (229) is slidably connected to a guide of the second linear guide (229), and the detecting portion (23) is connected to the second nut block (226).

7. The device for detecting spectral transmittance according to claim 6, wherein the turntable assembly (1) comprises a motor (11), a motor transition piece (12), a turntable (13), a vacuum pipeline and a suction cup (14), the motor (11) is connected with the motor transition piece (12), the motor transition piece (12) is in threaded connection with the turntable (13), the suction cup (14) is uniformly fixed at the edge of the surface of the turntable (13), and the suction cup (14) is communicated with the vacuum pipeline.

8. The device for detecting the spectral transmittance according to claim 7, wherein the number of the suckers (14) is 4, and the suckers are respectively arranged at the feeding station, the correcting station, the detecting station and the blanking station.

9. The apparatus for detecting spectral transmittance according to claim 8, further comprising a processor (3), wherein the processor (3) is electrically connected to the spectrometer (234) and the camera (238), respectively.

10. A device for detecting spectral transmittance according to claim 3, wherein the camera (238) is a CCD camera.