CD player laser head testing device

Abstract

The invention discloses a CD player laser head testing device, and relates to the technical field of CD players. The device comprises a support, the top of the support is provided with a conveying assembly and a distance adjusting assembly, the conveying assembly is provided with a detection assembly, the detection assembly is internally provided with an angle adjusting assembly, the conveying assembly is used for driving a tested CD player laser head to move to the position below the detection assembly, and the distance adjusting assembly is used for adjusting a gap of the conveying assembly. Through connection of the conveying assembly and the distance adjusting assembly, after the distance adjusting assembly is started, the distance adjusting assembly slides on the outer surface of the support, the conveying assembly is located outside the distance adjusting assembly, and the conveying assembly moves along with the distance adjusting assembly, so that the gap size of the conveying assembly is changed; the conveying assembly can bear laser heads of different models, the conveying assembly drives the laser heads to move to the position below the detection assembly to be detected, and use is more convenient and flexible.

Description

Technical Field

[0001] The present invention belongs to the technical field of CD players, and in particular relates to a CD player laser head testing device. Background Art

[0002] A CD player is an electronic device used to read and play digital audio or data stored on a compact disc. Its core principle is to use optical technology to read the pits and lands on the disc's surface, converting the optical signal into an electrical signal that is then decoded into audio or digital information. The laser head is the core component of the CD player, responsible for reading the disc's information.

[0003] During CD player maintenance and production, the laser head is a core component whose performance directly impacts data reading accuracy and device lifespan. Traditional laser head inspection methods rely on manual oscilloscope operation to measure and analyze key signals (such as RF signals, focus error signals, and laser diode operating voltage). This process is time-consuming and relies heavily on operator experience. Summary of the Invention

[0004] In view of the problem that traditional laser head detection methods mostly rely on manual operation of oscilloscopes to measure and analyze key signals (such as RF signals, focusing error signals, laser diode operating voltage, etc.) one by one, the process is time-consuming and dependent on operator experience. The present invention proposes a CD player laser head testing device to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a CD player laser head testing device, comprising a support, wherein a conveying assembly and a distance adjustment assembly are arranged on the top of the support, a detection assembly is arranged on the conveying assembly, and an angle adjustment assembly is arranged inside the detection assembly. The conveying assembly is used to drive the tested CD player laser head to move to the bottom of the detection assembly, the distance adjustment assembly is used to adjust the gap of the conveying assembly, and the angle adjustment assembly is used to adjust the angle of the detection assembly.

[0007] Furthermore, the conveying assembly includes a fixed plate, which is fixedly connected to the top of the support, and a first motor is fixedly installed on the outer surface of the fixed plate, and a roller is fixedly connected to the output shaft end of the first motor, and a slide groove is provided on the outer surface of the roller, and a sliding wheel is slidably connected to the outer surface of the roller, and a conveyor belt is installed on the outer surface of the sliding wheel. There are two groups of rollers, and each group of rollers has two groups of sliding wheels on the outer surface, and the rollers are rotatably connected to the fixed plate.

[0008] Furthermore, the distance adjustment assembly includes a second motor, which is fixedly mounted on the outer surface of the support, and the output shaft end of the second motor is fixedly connected to a bidirectional screw, which is rotatably connected to the inside of the support, and the outer surface of the bidirectional screw is threadedly connected to a slider, and the top of the slider is fixedly connected to a sliding plate, and the slider is slidably connected to the support, and there are two groups of sliders and sliding plates, and the sliding wheel is rotatably mounted on the outer surface of the sliding plate.

[0009] Furthermore, the detection component includes a bracket, which is fixedly installed on the top of the fixed plate. A detector is fixedly installed inside the bracket. A cable is fixedly connected to the outer surface of the detector, and a detection head is fixedly connected to the end of the cable.

[0010] Furthermore, the angle adjustment assembly includes a third motor, which is fixedly mounted inside the bracket, and the output shaft end of the third motor is fixedly connected to a first gear, the outer surface of the first gear is meshed with a second gear, the first gear and the second gear are both rotatably connected to the bracket, the outer surfaces of the first gear and the second gear are fixedly mounted with an electric push rod, and the detection head is fixedly mounted on the movable end of the electric push rod.

[0011] Furthermore, a supporting bracket is fixedly installed on the top of the support.

[0012] Furthermore, a mounting bracket is fixedly mounted on the outer surface of the fixing plate, and the first motor is fixedly mounted on the outer surface of the mounting bracket.

[0013] The present invention has the following beneficial effects:

[0014] 1. The present invention connects the conveying component and the distance adjustment component. After the distance adjustment component is started, the distance adjustment component slides on the outer surface of the support. The conveying component is located outside the distance adjustment component. The conveying component moves with the distance adjustment component, thereby changing the gap size of the conveying component, so that the conveying component can carry laser heads of different models. The conveying component drives the laser head to move to the bottom of the detection component for detection, which is more convenient and flexible to use.

[0015] 2. The present invention connects the first gear and the second gear. When the third motor is started to drive the first gear to rotate, the first gear engages with the second gear, which can drive the second gear to rotate. The first gear and the second gear respectively drive the two groups of detection heads to rotate, and the rotation directions are opposite. The angle of the detection head can be adjusted to facilitate the detection of laser heads of different models.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 The external contour structure of the present invention is shown as follows Figure 1 ;

[0019] Figure 2 The external contour structure of the present invention is shown as follows Figure 2 ;

[0020] Figure 3 For the present invention Figure 2 A schematic diagram of the structure at center A;

[0021] Figure 4 The external contour structure of the present invention is shown as follows Figure 3 ;

[0022] Figure 5 Schematic diagram of the detection component structure of the present invention;

[0023] Figure 6 This is a schematic structural diagram of the angle adjustment assembly of the present invention;

[0024] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the structure at point B in the middle.

[0025] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0026] 1. Support; 2. Conveying assembly; 201. Fixed plate; 202. First motor; 203. Roller; 204. Slide; 205. Sliding wheel; 206. Conveyor belt; 3. Distance adjustment assembly; 301. Second motor; 302. Bidirectional screw; 303. Sliding block; 304. Sliding plate; 4. Detection assembly; 401. Bracket; 402. Detector; 403. Cable; 404. Detection head; 5. Angle adjustment assembly; 501. Third motor; 502. First gear; 503. Second gear; 504. Electric push rod; 6. Support frame; 7. Mounting frame. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0028] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the invention.

[0029] See also Figure 1-Figure 7 As shown, the present invention is a CD player laser head testing device, including a support 1, a conveying component 2 and a distance adjustment component 3 are provided on the top of the support 1, the conveying component 2 is provided with a detection component 4, and an angle adjustment component 5 is provided inside the detection component 4. The conveying component 2 is used to drive the tested CD player laser head to move to the bottom of the detection component 4, the distance adjustment component 3 is used to adjust the gap of the conveying component 2, and the angle adjustment component 5 is used to adjust the angle of the detection component 4.

[0030] Start the distance adjustment component 3, and the distance adjustment component 3 drives the conveying component 2 to move, so that the conveying component 2 slides on the outer surface of the support 1, and changes the gap of the conveying component 2, so that the conveying component 2 can adapt to different types of laser heads. After placing the laser head on the top of the conveying component 2, start the conveying component 2, and after the conveying component 2 drives the laser head to move to the bottom of the detection component 4, start the angle adjustment component 5 to drive the detection component 4 to rotate, adjust the angle of the detection component 4, and then drive the detection component 4 to descend to contact the laser head, detect the key signals of the laser head, and observe the data obtained from the detection to know whether the laser head is normal.

[0031] The present invention connects the conveying component 2 and the distance adjustment component 3. After the distance adjustment component 3 is started, the distance adjustment component 3 slides on the outer surface of the support 1, and the conveying component 2 is located outside the distance adjustment component 3. The conveying component 2 moves with the distance adjustment component 3, thereby changing the gap size of the conveying component 2, so that the conveying component 2 can carry laser heads of different models. The conveying component 2 drives the laser head to move to the bottom of the detection component 4 for detection, which is more convenient and flexible to use.

[0032] In one embodiment, for the above-mentioned conveying component 2, the conveying component 2 includes a fixed plate 201, the fixed plate 201 is fixedly connected to the top of the support 1, the outer surface of the fixed plate 201 is fixedly installed with a first motor 202, the output shaft end of the first motor 202 is fixedly connected with a roller 203, the outer surface of the roller 203 is provided with a slide groove 204, the outer surface of the roller 203 is slidably connected with a sliding wheel 205, the outer surface of the sliding wheel 205 is installed with a conveyor belt 206, there are two groups of rollers 203, each group of rollers 203 has two groups of sliding wheels 205 on the outer surface, and the rollers 203 are rotatably connected to the fixed plate 201.

[0033] Start the first motor 202, the output shaft of the first motor 202 drives the roller 203 to rotate, the roller 203 drives the sliding wheel 205 to rotate, the sliding wheel 205 drives the conveyor belt 206 to rotate, and the conveyor belt 206 can drive the laser head located on the top thereof to move.

[0034] In one embodiment, for the above-mentioned distance adjustment component 3, the distance adjustment component 3 includes a second motor 301, the second motor 301 is fixedly mounted on the outer surface of the support 1, the output shaft end of the second motor 301 is fixedly connected to a bidirectional screw 302, the bidirectional screw 302 is rotatably connected to the inside of the support 1, the outer surface of the bidirectional screw 302 is threadedly connected to a slider 303, the top of the slider 303 is fixedly connected to a sliding plate 304, the slider 303 is slidably connected to the support 1, the slider 303 and the sliding plate 304 each have two groups, and the sliding wheel 205 is rotatably mounted on the outer surface of the sliding plate 304.

[0035] Start the second motor 301, and the output shaft of the second motor 301 drives the bidirectional screw 302 to rotate. The rotation tendency of the slider 303 on the outer surface of the bidirectional screw 302 is blocked by the support 1. At this time, the bidirectional screw 302 can drive the two groups of sliders 303 to respectively drive the two groups of sliding plates 304 to move. The sliding plates 304 drive the sliding wheels 205 to slide along the sliding grooves 204 on the outer surface of the roller shaft 203, changing the distance between the two groups of sliding wheels 205 and the conveyor belt 206, so that the conveyor belt 206 can transport laser heads of different models.

[0036] In one embodiment, for the above-mentioned detection component 4, the detection component 4 includes a bracket 401, the bracket 401 is fixedly installed on the top of the fixed plate 201, a detector 402 is fixedly installed inside the bracket 401, the outer surface of the detector 402 is fixedly connected to a cable 403, and the end of the cable 403 is fixedly connected to a detection head 404.

[0037] After the conveyor belt 206 drives the laser head to move to the bottom of the bracket 401 and the detection head 404, the detection head 404 contacts the laser head to detect it, and the detection data is transmitted to the detector 402 through the cable 403 on the detection head 404. The detector 402 can use an oscilloscope, which detects the working voltage of the laser diode in the laser head through the detection head 404.

[0038] In one embodiment, for the above-mentioned angle adjustment component 5, the angle adjustment component 5 includes a third motor 501, the third motor 501 is fixedly installed inside the bracket 401, the output shaft end of the third motor 501 is fixedly connected to the first gear 502, the outer surface of the first gear 502 is meshed with the second gear 503, the first gear 502 and the second gear 503 are both rotatably connected to the bracket 401, the outer surfaces of the first gear 502 and the second gear 503 are fixedly installed with an electric push rod 504, and the detection head 404 is fixedly installed at the movable end of the electric push rod 504.

[0039] Start the third motor 501, and the output shaft of the third motor 501 drives the first gear 502 to rotate. The first gear 502 is engaged with the second gear 503, driving the second gear 503 to rotate. The first gear 502 and the second gear 503 rotate in opposite directions. The first gear 502 and the second gear 503 respectively drive the two groups of electric push rods 504 and the detection head 404 to rotate, so as to adjust the angle of the detection head 404. Then, the electric push rod 504 is started to push the detection head 404 down to make it close to the laser head, so as to facilitate the detection of the laser head.

[0040] In one embodiment, for the above-mentioned support 1 , a support bracket 6 is fixedly mounted on the top of the support 1 .

[0041] The support bracket 6 is used to place a CD disc for testing. When the laser head contacts the CD disc on the outer surface of the support bracket 6, observing whether it can read the disc normally can be used as another detection method.

[0042] In one embodiment, for the above-mentioned fixing plate 201 , a mounting bracket 7 is fixedly mounted on the outer surface of the fixing plate 201 , and the first motor 202 is fixedly mounted on the outer surface of the mounting bracket 7 .

[0043] The mounting bracket 7 is used to provide a fixed installation position for the first motor 202 so that the first motor 202 can be firmly fixed on the outer surface of the fixing plate 201 to ensure the stability of the first motor 202 during operation.

[0044] Through the above technical solution, 1. Through the connection between the conveying component 2 and the distance adjustment component 3, after starting the distance adjustment component 3, the distance adjustment component 3 slides on the outer surface of the support 1, and the conveying component 2 is located outside the distance adjustment component 3. The conveying component 2 moves with the distance adjustment component 3, thereby changing the gap size of the conveying component 2, so that the conveying component 2 can carry laser heads of different models, and the conveying component 2 drives the laser head to move to the bottom of the detection component 4 for detection, which is more convenient and flexible to use; 2. Through the connection between the first gear 502 and the second gear 503, when the third motor 501 is started to drive the first gear 502 to rotate, the first gear 502 is engaged with the second gear 503, which can drive the second gear 503 to rotate. The first gear 502 and the second gear 503 respectively drive the two groups of detection heads 404 to rotate, and the rotation directions are opposite. The angle of the detection head 404 can be adjusted to facilitate the detection of laser heads of different models.

[0045] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0046] The preferred embodiments of the invention disclosed above are intended only to help illustrate the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A CD player laser head testing device, comprising a support (1), characterized in that: The top of the support (1) is provided with a conveying assembly (2) and a distance adjustment assembly (3); the conveying assembly (2) is provided with a detection assembly (4); an angle adjustment assembly (5) is provided inside the detection assembly (4); the conveying assembly (2) is used to drive the laser head of the CD player to be tested to move to the bottom of the detection assembly (4); the distance adjustment assembly (3) is used to adjust the gap of the conveying assembly (2); and the angle adjustment assembly (5) is used to adjust the angle of the detection assembly (4).

2. A CD player laser head testing device according to claim 1, characterized in that: The conveying assembly (2) comprises a fixed plate (201), the fixed plate (201) is fixedly connected to the top of the support (1), a first motor (202) is fixedly installed on the outer surface of the fixed plate (201), an output shaft end of the first motor (202) is fixedly connected to a roller (203), a sliding groove (204) is provided on the outer surface of the roller (203), a sliding wheel (205) is slidably connected to the outer surface of the roller (203), a conveyor belt (206) is installed on the outer surface of the sliding wheel (205), there are two groups of rollers (203), the outer surface of each group of rollers (203) has two groups of sliding wheels (205), and the rollers (203) are rotatably connected to the fixed plate (201).

3. A CD player laser head testing device according to claim 2, characterized in that: The distance adjustment assembly (3) comprises a second motor (301), the second motor (301) is fixedly mounted on the outer surface of the support (1), the output shaft end of the second motor (301) is fixedly connected to a bidirectional screw (302), the bidirectional screw (302) is rotatably connected to the interior of the support (1), the outer surface of the bidirectional screw (302) is threadedly connected to a slider (303), the top of the slider (303) is fixedly connected to a sliding plate (304), the slider (303) is slidably connected to the support (1), the slider (303) and the sliding plate (304) are each provided with two groups, and the sliding wheel (205) is rotatably mounted on the outer surface of the sliding plate (304).

4. A CD player laser head testing device according to claim 3, characterized in that: The detection assembly (4) comprises a bracket (401), the bracket (401) is fixedly mounted on the top of the fixed plate (201), a detector (402) is fixedly mounted inside the bracket (401), a cable (403) is fixedly connected to the outer surface of the detector (402), and a detection head (404) is fixedly connected to the end of the cable (403).

5. A CD player laser head testing device according to claim 4, characterized in that: The angle adjustment assembly (5) comprises a third motor (501), the third motor (501) is fixedly mounted inside the bracket (401), the output shaft end of the third motor (501) is fixedly connected to a first gear (502), the outer surface of the first gear (502) is meshed with a second gear (503), the first gear (502) and the second gear (503) are both rotatably connected to the bracket (401), the outer surfaces of the first gear (502) and the second gear (503) are fixedly mounted with an electric push rod (504), and the detection head (404) is fixedly mounted on the movable end of the electric push rod (504).

6. A CD player laser head testing device according to claim 5, characterized in that: A support bracket (6) is fixedly mounted on the top of the support (1).

7. A CD player laser head testing device according to claim 6, characterized in that: A mounting frame (7) is fixedly mounted on the outer surface of the fixing plate (201), and the first motor (202) is fixedly mounted on the outer surface of the mounting frame (7).

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