Automatic detection mechanism and method for multi-stage motor PCB

Abstract

The invention discloses an automatic detection mechanism and method for a multi-stage motor PCB (Printed Circuit Board), and relates to the field of motor detection, a posture adjusting mechanism and an automatic putting device of a motor are additionally arranged on the original basis, and the original linear conveying belt detection is changed into a detection disc which is put to different positions of four different detection points through a central putting device. And the detection disc drives the motors at all positions to perform four-position alternate detection in sequence. In the multi-item detection process of the single motor PCB, the system evaluates the motor at each detection position, and codes the results as four-bit codes of 1 or 0 in sequence. Only when the detection results of all the four positions are 1, the motor is considered to be qualified and enters a qualified conveying line. And if the current detection item is disqualified, an unqualified conveying line corresponding to the detection content is entered, corresponding maintenance of the unqualified product of the detection item is facilitated, and a new to-be-detected motor is fed by the central feeding device for supplementation for a new round of detection.

Description

Technical Field

[0001] The present invention relates to the field of motor detection, and in particular to an automatic detection mechanism and method for a multi-stage motor PCB board. Background Art

[0002] The wide application of motors in modern industry and daily life has put forward higher requirements for the production and quality of motors. By improving and optimizing the structural design of motor PCB automatic detection, the product quality and production efficiency of motors can be improved, and the development of related industries can be promoted.

[0003] The existing motor circuit board automatic detection mechanism is transmitted into the detection mechanism through a single conveyor belt, and needs to be manually adjusted and pre-placed in the card slot on the conveyor belt. The adjustment mechanism in the detection mechanism then detects the motor and finally determines whether the motor is qualified and the fault content. In this process, the traditional motor detection system often lacks an effective coding and replacement mechanism, which makes it difficult to manage the test results and maintain the qualified standards. Summary of the invention

[0004] In order to solve the above-mentioned problems, the present invention provides an automatic detection mechanism and method for a multi-stage motor PCB board. Without affecting the conventional detection quality of the motor PCB board, a construction and motor posture adjustment device, a central motor delivery device, a rounded rectangular diversion guide rail and a PCB board photographing detection mechanism are added to the original motor PCB board detection mechanism to improve the detection efficiency of the motor circuit board.

[0005] To achieve the above-mentioned purpose, the present invention provides an automatic detection mechanism for a multi-stage motor PCB board, comprising a motor posture adjustment device, a central motor delivery device and a rounded rectangular diversion guide rail arranged on a base, one end of the central motor delivery device is connected to the motor posture adjustment device, and the other end of the central motor delivery device is connected to the rounded rectangular diversion guide rail, a PCB board photographing and detection mechanism is arranged on the rounded rectangular diversion guide, and a conveying mechanism is also arranged on the base, and a plurality of detection disks are arranged at equal distances on the conveying mechanism.

[0006] Preferably, the motor posture adjustment device includes conveyor belt 1, conveyor belt side baffle supports arranged on both sides of conveyor belt 1, baffles arranged on conveyor belt 1 at equal intervals, conveyor belt 2 and a clamping and flipping mechanism, a camera 1 is arranged above conveyor belt 2, conveyor belt 2 is arranged on both sides above conveyor belt 1 and fixed on the conveyor belt side baffle supports, the upper surface of conveyor belt 2 is higher than the sum of the motor diameter, the PCB board thickness and the baffle height, and the spacing between adjacent baffles and the spacing between two conveyor belts 2 are both greater than the width of the motor PCB board.

[0007] Preferably, a rotating rod 1 and a camera 2 are also provided on the conveyor belt side stop support. The rotating rod performs circular motion. A baffle rod is provided on the side of the rotating rod 1 away from the conveyor belt 2. The baffle rod is provided parallel to the conveyor belt 1. The height of the baffle rod is the sum of the thickness of the PCB board and the diameter of the motor. The clamping and flipping mechanism is provided on the conveyor belt side stop support. The clamping and flipping mechanism includes a clamping mechanism support, a rotating rod 2 provided on the clamping mechanism support, a rotation rod provided on the rotating rod 2, and a clamping claw provided on the rotation rod.

[0008] Preferably, the central motor delivery device includes a spinning guide groove platform and a rotating oblique guide groove, the spinning guide groove platform is arranged on the rotating oblique guide groove, the groove width and groove depth of the spinning guide groove platform and the rotating oblique guide groove are both larger than the motor diameter, the spinning guide groove platform rotates around the cylindrical axis, and rotates from a horizontal state to the same slope as the rotating oblique guide groove.

[0009] Preferably, a four-way oblique guide groove is provided on the rounded rectangular diversion guide rail, the size of the four-way oblique guide groove is consistent with the self-spinning guide groove platform and the self-rotation oblique guide groove, the midpoints of the four sides of the rounded rectangle point to the center position of the base, the slope of the four-way oblique guide groove is consistent with the slope of the self-rotation oblique guide groove, and four sets of levers are provided at the four corner diversions of the rounded rectangular diversion device.

[0010] Preferably, the conveying mechanism includes a conveying chain, a driving sprocket and a driven sprocket. The driving sprocket and three driven sprockets are arranged on a rectangular plane of the base and distributed in a 90° circle. The driving sprocket and the three driven sprockets are connected through a conveying chain transmission. The detection disk is installed on the conveying chain at equal distances, and the driving sprocket is connected to the output shaft of the motor.

[0011] Preferably, the PCB board photo detection mechanism includes four photo detection cameras arranged at 90° on a rounded rectangular diversion guide rail, the four photo detection cameras correspond to four photo detection positions A, B, C, and D respectively, and four lighting lamps are arranged below the four photo detection cameras, corresponding to PCB board solder point status monitoring, PCB board tin slag detection, motor claw deformation detection, and PCB board exposed copper and pad dirt detection respectively.

[0012] An implementation method of an automatic detection mechanism for a multi-stage motor PCB board specifically includes the following steps:

[0013] Step S1: The motors are sequentially put into the L1 position of the motor posture adjustment device, and the motors are spaced 3 baffles apart from the previous motors. A pair of cameras are used to take pictures of the motor PCB board being blocked on the conveyor belts 2 on both sides, and a rectangular coordinate system is constructed on the plane of the conveyor belt 2. The posture of the motor PCB board is judged by the simplified coordinate points of the corners of the PCB board. If the posture does not meet the requirements, a command is issued to the conveyor belt 2. After the motor PCB board is adjusted to a position parallel to the running direction of the conveyor belt by moving the conveyor belt 2 forward and backward, it falls from the conveyor belt 2 into the conveyor belt 1, and then enters the position L2. The side posture of the motor is taken by the second camera, and the slope is judged by the positive or negative slope of the simplified straight line of the motor PCB board plane. If the slope of the line is positive, the rotating rod 1 is controlled to rotate clockwise when the motor moves forward. If the slope of the line is negative, the rotating rod 1 is controlled to rotate counterclockwise when the motor moves forward, so that the motor PCB board plane fits with the conveyor belt 1, and then enters the L3 position. If the posture meets the requirements, it directly enters the L3 position;

[0014] Step S2: The motor that has not fallen between the two baffles is blocked between the two baffles by the blocking rod;

[0015] Step S3: After the motor enters position L4, it is clamped by the clamping and flipping mechanism and driven by the second rotating rod to rotate horizontally to the placement position. After flipping, the clamping claw is released, and the motor falls into the horizontal self-spinning guide groove platform and the self-rotating oblique guide groove rotates to the required guide groove notch. The self-spinning guide groove platform is tilted and docked with the self-rotating oblique guide groove so that the motor slides into the corresponding position detection plate;

[0016] Step S4: The central motor delivery device delivers the motor to be tested along the four-way guide grooves into the test disks in areas A, B, C, and D respectively, and is clamped and fixed by the clamping mechanism on the test disk, and then illuminated by the lighting lamp. After the four photo detection cameras take photos of the motors at each position, the detection system automatically determines whether the current detection item is qualified and records the detection results of the four detection items. The qualified one is coded as 1, and the unqualified one is coded as 0. The four-digit code is recorded on the test disk at the current position in the order of detection;

[0017] Step S5: If the current detection position coding result is 0, a recovery signal is sent to the lever at the diversion port in the forward direction of the detection disk, and the lever is rotated 45 degrees clockwise. When the detection disk moves to the blocking lever position, the clamping device on the detection disk is released, and the lever is rotated 45 degrees counterclockwise to recover the action and return to the initial position, and the unqualified motor is put into the special conveyor belt for unqualified products. After the detection disk enters the next detection position and is in place, a signal is sent to the central motor delivery device to deliver the motor at the corresponding position. After the motor to be tested is clamped by the clamping device on the detection disk, the corresponding detection action is repeated, and the original code of the detection disk at this position is deleted and a new round of four-digit code corresponding to it is recorded again starting from the first code;

[0018] If the corresponding coding result of the detection disk at the current detection position is 1, and it is not the fourth digit code, no signal is sent, and the conveyor chain enters the next detection position; if the corresponding code of the detection disk at the current detection position is 1, and it is the fourth digit code, and the four-digit code is 1111, a recovery signal is sent to the diversion port lever in the forward direction of the detection disk, and the lever rotates 45 degrees clockwise. After the detection disk moves to the blocking rod position, the clamping device on the detection disk is released, and the lever rotates 45 degrees counterclockwise to perform a recovery action and return to the initial position, and the qualified motor is dialed into the qualified product conveyor line. After that, the detection disk enters the next detection position and is in place, a signal is sent to the central motor delivery device, and the motor delivery signal is released at the corresponding delivery port at this position. After the motor to be tested is clamped by the clamping mechanism on the detection disk, the same detection action is repeated, and the original four-digit code of the detection disk at this position is deleted and the corresponding new round of four-digit code is recorded again starting from the first code.

[0019] Therefore, the present invention adopts the above-mentioned automatic detection mechanism and method of a multi-stage motor PCB board, which has the following beneficial effects:

[0020] (1) Each of the four inspection positions in the present invention is equipped with a corresponding photo inspection camera and a lighting lamp for performing a qualified product test on the motor PCB board.

[0021] (2) The unqualified product conveying line corresponding to each inspection item of the present invention is a dedicated conveying line for the unqualified product category of the inspection item, which is convenient for subsequent special repair and subsequent processing. The qualified product recycling line will be integrated into a unified recycling line to improve operation efficiency and resource utilization.

[0022] (3) The conveying mechanism in the present invention has an automatic control function to ensure that the motor moves to each detection position in sequence and returns the detection results.

[0023] (4) The configuration of the detection position in the present invention can be adjusted according to different detection requirements to adapt to different types of motor PCB boards or detection standards.

[0024] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall device of an automatic detection mechanism of a multi-stage motor PCB board of the present invention;

[0026] Figure 2 It is a schematic diagram of the top view of the structure of a motor posture adjustment device of an automatic detection mechanism of a multi-stage motor PCB board of the present invention;

[0027] Figure 3It is a schematic diagram of a motor posture adjustment device and a central motor delivery device in an automatic detection mechanism of a multi-stage motor PCB board of the present invention;

[0028] Figure 4 It is a top view of a conveying mechanism and a PCB board photographing and detecting mechanism in an automatic detection mechanism of a multi-stage motor PCB board of the present invention;

[0029] Figure 5 It is a motor detection flow chart of an automatic detection method for a multi-stage motor PCB board of the present invention;

[0031] 1. Base; 2. Motor posture adjustment device; 3. Center motor delivery device; 4. Rounded rectangular diversion guide rail; 5. Conveying mechanism; 6. Inspection plate; 7. PCB board photo inspection mechanism; 21. Conveyor belt one; 211. Baffle plate; 22. Conveyor belt side baffle support; 23. Conveyor belt two; 231. Camera one; 24. Rotating rod one; 241. Camera two; 25. Baffle rod; 26. Clamping and flipping mechanism; 261. Clamping mechanism support; 262. Rotating rod two; 263. Rotating rod; 264. Clamping claw; 31. Self-spinning guide groove platform; 32. Self-rotating oblique guide groove; 41. Push rod; 42. Four-way oblique guide groove; 51. Conveyor chain; 52. Driving sprocket; 53. Driven sprocket; 71. Photo inspection camera; 721. Lighting lamp. DETAILED DESCRIPTION

[0032] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.

[0033] Unless otherwise defined, technical or scientific terms used in the present invention shall have the common meanings understood by one having ordinary skills in the field to which the present invention belongs.

[0034] The words "include" or "comprises" and the like used in the present invention mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of also including other elements. The orientation or position relationship indicated by the terms "inside", "outside", "upper", "lower", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention. When the absolute position of the described object changes, the relative position relationship may also change accordingly. In the present invention, unless otherwise clearly specified and limited, the terms "attachment" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Example

[0036] An automatic detection mechanism for a multi-stage motor PCB board comprises a motor posture adjustment device 2, a central motor delivery device 3 and a rounded rectangular diversion guide rail 4 arranged on a base 1, one end of the central motor delivery device 3 is connected to the motor posture adjustment device 2, and the other end of the motor posture adjustment device 2 is connected to the rounded rectangular diversion guide rail 4, a PCB board photographing detection mechanism 7 is arranged on the rounded rectangular diversion guide rail 4, a conveying mechanism 5 is also arranged on the base 1, and a plurality of detection disks 6 are arranged on the conveying mechanism 5 at equal distances.

[0037] like Figure 2 As shown, the motor posture adjustment device 2 includes a conveyor belt 21, conveyor belt side baffle supports 22 arranged on both sides of the conveyor belt 21, baffles 211 arranged on the conveyor belt 21 at equal intervals, a conveyor belt 23 and a clamping and flipping mechanism 26, a camera 231 is arranged above the conveyor belt 23, the conveyor belt 23 is arranged on both sides above the conveyor belt 21 and fixed on the conveyor belt side baffle supports 22, the upper surface of the conveyor belt 23 is higher than the sum of the motor diameter and the thickness of the PCB board, and the spacing between adjacent baffles 211 and the spacing between two conveyor belts 23 are both greater than the width of the motor PCB board.

[0038] The conveyor belt side block support 22 is also provided with a rotating rod 1 24 and a camera 2 241. The rotating rod 24 performs circular motion. A stop bar 25 is provided on the side of the rotating rod 1 24 away from the conveyor belt 2 23. The stop bar 25 is provided parallel to the conveyor belt 1 21. The height of the stop bar 25 is the sum of the thickness of the PCB board and the diameter of the motor. The clamping and flipping mechanism 26 is provided on the conveyor belt side block support 22. The clamping and flipping mechanism 26 includes a clamping mechanism support 261, a rotating rod 262 provided on the clamping mechanism support 261, a self-rotating rod 263 provided on the rotating rod 262, and a clamping claw 264 provided on the self-rotating rod 263. The clamping mechanism support 261 is as shown in FIG. Figure 2 As shown, it is installed on the conveyor belt side block support 22, and the rotating rod 262 is installed on the clamping mechanism support 261, and can be horizontally rotated with the connection as the center of the circle. The self-rotating rod 263 is installed on the rotating rod 262, and can be turned over by self-rotation. The clamping claw 264 is installed on the self-rotating rod 263, and is used to clamp the motor to be tested. The initial clamping position corresponds to the position L4 shown in the figure, and the final position after the clamping flip corresponds to the spin guide groove platform 31 to ensure that the motor falls into the groove in its fixed posture after flipping.

[0039] like Figure 3 As shown, the central motor delivery device 3 includes a spinning guide groove platform 31 and a rotating oblique guide groove 32. The spinning guide groove platform 31 is arranged on the rotating oblique guide groove 32. The groove width and groove depth of the spinning guide groove platform 31 and the rotating oblique guide groove 32 are both larger than the motor diameter. The spinning guide groove platform 31 rotates around the axis of the cylindrical surface, and rotates from a horizontal state to the same slope as the rotating oblique guide groove 32.

[0040] A four-way oblique guide groove 42 is provided on the rounded rectangular diversion guide rail 4. The size of the four-way oblique guide groove 42 is consistent with the spin guide groove platform 31 and the rotation oblique guide groove 32. The midpoints of the four sides of the rounded rectangle point to the center position of the base 1. The slope of the four-way oblique guide groove 42 is consistent with the slope of the rotation oblique guide groove. Four groups of levers 41 are provided at the four corner diversions of the rounded rectangular diversion device. Figure 1 The four groups of levers 41 are respectively installed at the four corner diversions of the rounded rectangular diversion device for diverting the motor. Two conveyor belts are installed at each diversion, corresponding to the two levers 41 installed at the diversion.

[0041] like Figure 4As shown, the conveying mechanism 5 includes a conveying chain 51, a driving sprocket 52 and a driven sprocket 53. The driving sprocket 52 and the three driven sprockets 53 are all arranged on the rectangular plane of the base 1 and are distributed in a 90° circle. The driving sprocket 52 and the three driven sprockets 53 are connected by the conveying chain 51. The detection disk 6 is installed on the conveying chain 51 at equal distances, and the driving sprocket 52 is connected to the output shaft of the motor. The conveying mechanism 5 has an automatic control function to ensure that the motor moves to each detection position in sequence and returns the detection results. The detection process of the system includes automatic initialization, testing, result recording, qualified judgment and special treatment of unqualified products. The configuration of the detection position can be adjusted according to different detection requirements to adapt to different types of motor PCB boards or detection standards.

[0042] The PCB board photo detection mechanism 7 includes four photo detection cameras 71 arranged at 90° on the rounded rectangular diversion guide 4, and the four photo detection cameras 71 correspond to four photo detection positions A, B, C, and D respectively. Four lighting lamps 721 are arranged below the four photo detection cameras 71, corresponding to PCB board solder joint status monitoring, PCB board tin slag detection, motor claw deformation detection, and PCB board exposed copper and pad dirt detection respectively.

[0043] like Figure 5 As shown, an implementation method of an automatic detection mechanism for a multi-stage motor PCB board specifically includes the following steps:

[0044] Step S1: The motors are sequentially put into the L1 position of the motor posture adjustment device, and the motors maintain a spacing of 3 baffles from the previous motors. A pair of cameras are used to take pictures of the motor PCB board being blocked on the conveyor belts 2 on both sides, and a rectangular coordinate system is constructed on the plane of the conveyor belt 2. The posture of the motor PCB board is judged by the simplified coordinate points of the corners of the PCB board. If the posture does not meet the requirements, a command is issued to the conveyor belt 2. After the motor PCB board is adjusted to a position where the long side is parallel to the running direction of the conveyor belt by moving the conveyor belt 2 back and forth, it falls from the conveyor belt 2 into the conveyor belt 1, and then enters the position L2. The side posture of the motor is taken by the second camera, and the slope is judged to be positive or negative by the simplified straight line of the motor PCB board plane. If the slope of the line is positive, the rotating rod 1 is controlled to rotate clockwise when the motor moves forward. If the slope of the line is negative, the rotating rod 1 is controlled to rotate counterclockwise when the motor moves forward, so that the motor PCB board plane fits with the conveyor belt 1, and then enters the L3 position. If the posture meets the requirements, it directly enters the L3 position;

[0045] Step S2: The motor that has not fallen between the two baffles is blocked between the two baffles by the blocking rod;

[0046] Step S3: After the motor enters position L4, it is clamped by the clamping and flipping mechanism and driven by the second rotating rod to rotate horizontally to the placement position. After flipping, the clamping claw is released, and the motor falls into the horizontal self-spinning guide groove platform and the self-rotating oblique guide groove rotates to the required guide groove notch. The self-spinning guide groove platform is tilted and docked with the self-rotating oblique guide groove so that the motor slides into the corresponding position detection plate;

[0047] Step S4: The central motor delivery device delivers the motor to be tested along the four-way guide grooves into the test disks in areas A, B, C, and D respectively, and is clamped and fixed by the clamping mechanism on the test disk, and then illuminated by the lighting lamp. After the four photo detection cameras take photos of the motors at each position, the detection system automatically determines whether the current detection item is qualified and records the detection results of the four detection items. The qualified one is coded as 1, and the unqualified one is coded as 0. The four-digit code is recorded on the test disk at the current position in the order of detection;

[0048] Step S5: If the current detection position coding result is 0, a recovery signal is sent to the lever at the diversion port in the forward direction of the detection disk, and the lever is rotated 45 degrees clockwise. When the detection disk moves to the blocking lever position, the clamping device on the detection disk is released, and the lever is rotated 45 degrees counterclockwise to recover the action and return to the initial position, and the unqualified motor is put into the special conveyor belt for unqualified products of the detection item. After the detection disk enters the next detection position and is in place, a signal is sent to the central motor delivery device to deliver the motor at the corresponding position. After the motor to be tested is clamped by the clamping device on the detection disk, the corresponding detection action is repeated, and the original code of the detection disk at this position is deleted and a new round of four-digit code corresponding to it is recorded again starting from the first code;

[0049] If the corresponding coding result of the detection disk at the current detection position is 1, and it is not the fourth digit code, no signal is sent, and the conveyor chain enters the next detection position; if the corresponding code of the detection disk at the current detection position is 1, and it is the fourth digit code, and the four-digit code is 1111, a recovery signal is sent to the diversion port lever in the forward direction of the detection disk, and the lever rotates 45 degrees clockwise. After the detection disk moves to the blocking rod position, the clamping device on the detection disk is released, and the lever rotates 45 degrees counterclockwise to perform a recovery action and return to the initial position, and the qualified motor is dialed into the qualified product conveyor line. After that, the detection disk enters the next detection position and is in place, a signal is sent to the central motor delivery device, and the motor delivery signal is released at the corresponding delivery port at this position. After the motor to be tested is clamped by the clamping mechanism on the detection disk, the same detection action is repeated, and the original four-digit code of the detection disk at this position is deleted and the corresponding new round of four-digit code is recorded again starting from the first code.

[0050] Therefore, the present invention adopts the above-mentioned automatic detection mechanism and method of a multi-stage motor PCB board, and adds a construction and motor posture adjustment device, a central motor delivery device, a rounded rectangular diversion guide rail and a PCB board photo detection mechanism to the original motor PCB board detection mechanism without affecting the conventional detection quality of the motor PCB board, so as to improve the detection efficiency of the motor circuit board.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. An automatic detection mechanism for a multi-stage motor PCB board, characterized in that: It includes a motor posture adjustment device, a central motor delivery device and a rounded rectangular diversion guide rail arranged on a base. One end of the central motor delivery device is connected to the motor posture adjustment device, and the other end of the central motor delivery device is connected to the rounded rectangular diversion guide rail. A PCB board photo-taking detection mechanism is arranged on the rounded rectangular diversion guide rail. A conveying mechanism is also arranged on the base, and a plurality of detection disks are arranged at equal distances on the conveying mechanism.

2. According to the automatic detection mechanism of a multi-stage motor PCB board as described in claim 1, it is characterized by: The motor posture adjustment device includes a conveyor belt 1, a conveyor belt side baffle supports arranged on both sides of the conveyor belt 1, baffles arranged on the conveyor belt 1 at equal intervals, a conveyor belt 2 and a clamping and flipping mechanism, a camera 1 is arranged above the conveyor belt 2, the conveyor belt 2 is arranged on both sides above the conveyor belt 1 and fixed on the conveyor belt side baffle supports, the upper surface of the conveyor belt 2 is higher than the sum of the motor diameter, the PCB board thickness and the baffle height, and the spacing between adjacent baffles and the spacing between two conveyor belts 2 are both greater than the width of the motor PCB board.

3. According to the automatic detection mechanism of a multi-stage motor PCB board as described in claim 2, it is characterized by: A rotating rod 1 and a camera 2 are also provided on the conveyor belt side stop support. The rotating rod performs circular motion. A stop rod is provided on the side of the rotating rod 1 away from the conveyor belt 2. The stop rod is provided parallel to the conveyor belt 1. The height of the stop rod is the sum of the thickness of the PCB board and the diameter of the motor. The clamping and flipping mechanism is provided on the conveyor belt side stop support. The clamping and flipping mechanism includes a clamping mechanism support, a rotating rod 2 provided on the clamping mechanism support, a rotation rod provided on the rotating rod 2, and a clamping claw provided on the rotation rod.

4. According to the automatic detection mechanism and method of a multi-stage motor PCB board as described in claim 1, it is characterized in that: The central motor delivery device includes a spinning guide groove platform and a rotating oblique guide groove. The spinning guide groove platform is arranged on the rotating oblique guide groove. The groove width and groove depth of the spinning guide groove platform and the rotating oblique guide groove are both larger than the motor diameter. The spinning guide groove platform rotates around the axis of the cylindrical surface, and rotates from a horizontal state to the same slope as the rotating oblique guide groove.

5. The automatic detection mechanism and method of a multi-stage motor PCB board according to claim 4, characterized in that: A four-way oblique guide groove is arranged on the rounded rectangular diversion guide rail. The size of the four-way oblique guide groove is consistent with that of the spinning guide groove platform and the self-rotating oblique guide groove. It points from the midpoints of the four sides of the rounded rectangle to the center position of the base. The slope of the four-way oblique guide groove is consistent with the slope of the self-rotating oblique guide groove. Four sets of levers are arranged at the four corner diversions of the rounded rectangular diversion device.

6. The automatic detection mechanism and method of a multi-stage motor PCB board according to claim 1, characterized in that: The conveying mechanism includes a conveying chain, a driving sprocket and a driven sprocket. The driving sprocket and three driven sprockets are arranged on a rectangular plane of the base and are distributed in a 90° circle. The driving sprocket and the three driven sprockets are connected through a conveying chain transmission. The detection disk is installed on the conveying chain at equal distances, and the driving sprocket is connected to the output shaft of the motor.

7. The automatic detection mechanism and method of a multi-stage motor PCB board according to claim 1, characterized in that: The PCB board photo inspection mechanism includes four photo inspection cameras arranged at 90 degrees on a rounded rectangular diversion guide rail. The four photo inspection cameras correspond to four photo inspection positions A, B, C, and D respectively. Four lighting lamps are arranged below the four photo inspection cameras, corresponding to PCB board solder point status monitoring, PCB board tin slag detection, motor claw deformation detection, and PCB board exposed copper and pad dirt detection respectively.

8. The implementation method of the automatic detection mechanism of a multi-stage motor PCB board according to any one of claims 1 to 7, characterized in that: The specific steps include: Step S1: The motors are sequentially put into the L1 position of the motor posture adjustment device, and the motors are spaced 3 baffles apart from the previous motors. A pair of cameras are used to take pictures of the motor PCB board being blocked on the conveyor belts 2 on both sides, and a rectangular coordinate system is constructed on the plane of the conveyor belt 2. The posture of the motor PCB board is judged by the simplified coordinate points of the corners of the PCB board. If the posture does not meet the requirements, a command is issued to the conveyor belt 2. After the motor PCB board is adjusted to a position where its long side is parallel to the running direction of the conveyor belt by moving the conveyor belt 2 back and forth, it falls from the conveyor belt 2 into the conveyor belt 1, and then enters the position L2. The side posture of the motor is taken pictures by the second camera, and the slope is judged to be positive or negative by the simplified straight line of the motor PCB board plane. If the slope of the line is positive, the rotating rod 1 is controlled to rotate clockwise when the motor moves forward. If the slope of the line is negative, the rotating rod 1 is controlled to rotate counterclockwise when the motor moves forward, so that the motor PCB board plane fits with the conveyor belt 1, and then enters the L3 position. If the posture meets the requirements, it directly enters the L3 position; Step S2: The motor that has not fallen between the two baffles is blocked between the two baffles by the blocking rod; Step S3: After the motor enters position L4, it is clamped by the clamping and flipping mechanism and driven by the second rotating rod to rotate horizontally to the placement position. After flipping, the clamping claw is released, and the motor falls into the horizontal self-spinning guide groove platform and the self-rotating oblique guide groove rotates to the required guide groove notch. The self-spinning guide groove platform is tilted and docked with the self-rotating oblique guide groove so that the motor slides into the corresponding position detection plate; Step S4: The central motor delivery device delivers the motor to be tested along the four-way guide grooves into the test disks in areas A, B, C, and D respectively, and is clamped and fixed by the clamping mechanism on the test disk, and then illuminated by the lighting lamp. After the four photo detection cameras take photos of the motors at each position, the detection system automatically determines whether the current detection item is qualified and records the detection results of the four detection items. The qualified one is coded as 1, and the unqualified one is coded as 0. The four-digit code is recorded on the test disk at the current position in the order of detection; Step S5: If the current detection position coding result is 0, a recovery signal is sent to the lever at the diversion port in the forward direction of the detection disk, and the lever is rotated 45 degrees clockwise. When the detection disk moves to the blocking lever position, the clamping device on the detection disk is released, and the lever is rotated 45 degrees counterclockwise to recover the action and return to the initial position, and the unqualified motor is put into the special conveyor belt for unqualified products. After the detection disk enters the next detection position and is in place, a signal is sent to the central motor delivery device to deliver the motor at the corresponding position. After the motor to be tested is clamped by the clamping device on the detection disk, the corresponding detection action is repeated, and the original code of the detection disk at this position is deleted and a new round of four-digit code corresponding to it is recorded again starting from the first code; If the corresponding coding result of the detection disk at the current detection position is 1, and it is not the fourth digit code, no signal is sent, and the conveyor chain enters the next detection position; if the corresponding code of the detection disk at the current detection position is 1, and it is the fourth digit code, and the four-digit code is 1111, a recovery signal is sent to the diversion port lever in the forward direction of the detection disk, and the lever rotates 45 degrees clockwise. After the detection disk moves to the blocking rod position, the clamping device on the detection disk is released, and the lever rotates 45 degrees counterclockwise to perform a recovery action and return to the initial position, and the qualified motor is dialed into the qualified product conveyor line. After that, the detection disk enters the next detection position and is in place, a signal is sent to the central motor delivery device, and the motor delivery signal is released at the corresponding delivery port at this position. After the motor to be tested is clamped by the clamping mechanism on the detection disk, the same detection action is repeated, and the original four-digit code of the detection disk at this position is deleted and the corresponding new round of four-digit code is recorded again starting from the first code.

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