Full-automatic motor shaft detection equipment and detection method thereof

Abstract

The invention belongs to the technical field of motor shaft detection, and particularly relates to full-automatic motor shaft detection equipment and a detection method thereof. The invention provides full-automatic motor shaft detection equipment which comprises a workbench, two optical detectors moving through a two-dimensional motion platform I are arranged above the workbench, the top of the workbench is rotatably connected with a turntable driven by a gear motor I, and the turntable is rotatably connected with a lower conical block and a cylindrical block. The lower conical block and the cylindrical block are suitable for containing the motor shaft with the hole and the motor shaft without the hole respectively, the motor shaft is clamped by the positioning clamping rod, the upper conical block stretches into the top end of the motor shaft with the hole, the upper conical block can retract when the rotating block presses the motor shaft without the hole, and the rotating block drives the motor shaft to rotate. Meanwhile, the two optical detectors move to detect the circumferential side of the motor shaft, the motor shaft is clamped by the steering clamping plate and rotated by 90 degrees to detect the end of the motor shaft, the motor shaft detection device can adapt to different types of motor shafts, the circumferential side and the end of the motor shaft are detected, adaptability is good, and practicability is high.

Description

Technical Field

[0001] The present invention belongs to the technical field of motor shaft detection, and particularly relates to a full-automatic detection device for a motor shaft and a detection method thereof. Background Art

[0002] The motor shaft is a rotating component connecting the motor and the load, and its main function is to transmit the rotational torque generated by the motor to the load to drive the load to rotate. The quality and accuracy of the motor shaft directly affect the performance and service life of the motor. Therefore, it is necessary to detect parameters such as the length, diameter, roundness, cylindricity, surface roughness, and straightness of the motor shaft.

[0003] Existing motor shaft detection devices often adopt optical detection methods, such as the interference method. The detector receives optical signals, converts them into electrical signals, and then obtains the parameters of the motor shaft through calculation and data processing. Specifically, the motor shaft is placed on a rotating platform, and the optical detector detects the circumferential side of the rotating motor shaft. However, there are limitations in use:

[0004] (1) Some motor shafts have holes at the ends. The contact surface between the end of the motor shaft with holes and the rotating platform is small. Additionally, the end of some motor shafts with holes is tooth-shaped, which makes the motor shaft with holes unable to be stably located on the rotating platform, and the motor shaft is unstable during rotation, making it unsuitable for detecting such motor shafts with holes.

[0005] (2) Since the end of the motor shaft contacts the rotating platform, the end of the motor shaft is blocked, and it is difficult for existing motor shaft detection devices to detect the end of the motor shaft.

[0006] Therefore, it is necessary to develop a full-automatic detection device for a motor shaft and a detection method thereof that can adapt to different types of motor shafts and detect the circumferential side and end of the motor shaft to solve the above problems. Summary of the Invention

[0007] In view of this, the present invention provides a full-automatic detection device for a motor shaft and a detection method thereof.

[0008] The technical solution of the present invention is as follows: A full-automatic detection device for a motor shaft includes a workbench. Above the workbench, there are two optical detectors that move through a two-dimensional motion platform 1. The top of the workbench is rotatably connected to a turntable driven by a reduction motor 1. On the turntable, a lower conical block and a cylindrical block are rotatably connected. Above the workbench, there is a moving frame that moves through a two-dimensional motion platform 2. The bottom of the moving frame is rotatably connected to a rotating block driven by a driving motor. The lower part of the rotating block is provided with an upper conical block that slides up and down. A compression spring is connected between the upper conical block and the rotating block. The upper part of the moving frame is rotatably connected to a rotating frame, and two steering clamping plates driven by an electric push rod 2 are slidably connected to the rotating frame.

[0009] As a preferred technical solution of the present invention, the middle parts of the steering clamping plates all have V-shaped parts.

[0010] As a preferred technical solution of the present invention, the two-dimensional motion platform I includes an electric slide rail I. Two electric slide rails I are connected to the top of the workbench. Electric slide rails II are installed on the sliders of the electric slide rail I. Lifting frames are installed on the sliders of the electric slide rail II. Two optical detectors are respectively installed on the two lifting frames.

[0011] As a preferred technical solution of the present invention, the two-dimensional motion platform II includes an electric slide rail III. The electric slide rail III is connected to the top of the workbench. A lifting seat is installed on the slider of the electric slide rail III. A first slide bar is slidably connected to the lifting seat. A moving frame is connected to the first slide bar. A first electric push rod is connected to the lifting seat. The telescopic rod of the first electric push rod is connected to the moving frame.

[0012] As a preferred technical solution of the present invention, the full-automatic motor shaft detection device further includes a driving mechanism for driving the rotating frame to rotate. The driving mechanism includes a reduction motor II and a gear set. The reduction motor II is connected to the moving frame. The output shaft of the reduction motor II is transmitted to the rotating frame through the gear set.

[0013] As a preferred technical solution of the present invention, the full-automatic motor shaft detection device further includes a positioning mechanism. The positioning mechanism includes a gear box. The gear box is connected to the workbench. Two rotating shafts with opposite rotating directions are rotatably connected to the gear box. Lever arms are connected to the rotating shafts. A reduction motor III is connected to the bottom of the gear box. The output shaft of the reduction motor III is connected to one of the rotating shafts. The two rotating shafts are transmitted through the gear box. A pair of second slide bars are slidably connected to each lever arm. A positioning clamping bar is commonly connected between the ends of each pair of second slide bars. The mutually approaching side surfaces of the two positioning clamping bars are both V-shaped. A return spring is connected between the positioning clamping bar and the lever arm.

[0014] As a preferred technical solution of the present invention, the full-automatic motor shaft detection device further includes a connecting plate. The connecting plate is connected to the top of the turntable. A through hole for the cylindrical block to pass through is opened in the middle of the connecting plate. Two pairs of guide rods are connected to the connecting plate. A placing clamping bar is slidably connected to each pair of guide rods. The mutually approaching side surfaces of the two placing clamping bars are both V-shaped. Two screw rods are rotatably connected to the connecting plate. The two screw rods are respectively threadedly connected to the two placing clamping bars. A row of ball bearings are provided on the mutually approaching sides of the two placing clamping bars.

[0015] A full-automatic motor shaft detection method specifically includes the following steps:

[0016] S1: The two rotating rods rotate and open, and the bottom end of the motor shaft with a hole is placed on the lower conical block. The two rotating rods are reversed and retracted. Under the action of the reset spring, the two positioning clamping rods clamp the motor shaft with a hole. The moving frame, the rotating block and the upper conical block move downward, and the upper conical block extends into the top end of the motor shaft with a hole. The bottom surface of the rotating block presses the top surface of the motor shaft with a hole, and the positioning clamping rod no longer clamps the motor shaft with a hole.

[0017] S2: The rotating block rotates, driving the motor shaft with a hole and the lower conical block to rotate, and at the same time, the two optical detectors move to detect the appearance, length, roundness, cylindricity and other parameters of the motor shaft with a hole;

[0018] S3: The rotating block stops rotating, the positioning clamp rod clamps the motor shaft with a hole, the moving frame rises to make the upper conical block leave the motor shaft with a hole, the moving frame moves, and the electric push rod 2 is controlled to make the two steering clamps clamp the motor shaft with a hole, the bottom end of the motor shaft with a hole leaves the lower conical block, the rotating frame, the steering clamp and the motor shaft with a hole rotate 90 degrees, and the end of the motor shaft with a hole is detected by two optical detectors;

[0019] S4: If the motor shaft is a motor shaft without a hole, the turntable rotates 180 degrees to swap the positions of the lower conical block and the cylindrical block, and the motor shaft without a hole is placed on the cylindrical block. The positioning clamp rod aligns the motor shaft without a hole and the cylindrical block in the center through the V-shaped side. When the rotating block presses the top surface of the motor shaft without a hole, the upper conical block retracts into the rotating block. With the cooperation of the moving frame, the positioning clamp rod, the optical detector and the steering clamp plate, the circumferential side and the end of the motor shaft without a hole are inspected.

[0020] Beneficial effects: 1. The lower conical block and the cylindrical block are respectively suitable for placing a motor shaft with a hole and a motor shaft without a hole. The motor shaft is clamped by a positioning clamp rod, and the upper conical block extends into the top end of the motor shaft with a hole. When the rotating block presses the motor shaft without a hole, the upper conical block can be retracted, and the rotating block drives the motor shaft to rotate. At the same time, the two optical detectors move their positions to detect the circumference of the motor shaft. The motor shaft is clamped by a steering splint and rotated 90 degrees to detect the end of the motor shaft. It can adapt to different types of motor shafts and detect the circumference and end of the motor shaft. It has good adaptability and high practicality.

[0021] 2. After placing the motor shaft without holes on the cylindrical block, rotate the screw to bring the two clamping rods closer to each other until the ball contacts the surface of the motor shaft without holes. The ball can limit the motor shaft without holes during rotation to prevent the motor shaft without holes from leaving the cylindrical block, so that the motor shaft without holes can be stably located on the cylindrical block. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 For the present invention Figure 1 Schematic diagram of the structure of the workbench after it is cut open.

[0024] Figure 3 This is a schematic structural diagram of the optical detector, electric slide rail 1, electric slide rail 2, and lifting frame of the present invention.

[0025] Figure 4 This is a schematic structural diagram of components such as the turntable, lower conical block, cylindrical block, moving frame, rotating block, rotating frame, steering clamping plate, and positioning mechanism of the present invention.

[0026] Figure 5 This is a schematic structural diagram of the turntable, lower conical block, and cylindrical block of the present invention.

[0027] Figure 6 This is a schematic structural diagram of the moving frame, rotating block, drive motor, upper conical block, rotating frame, and steering clamping plate of the present invention.

[0028] Figure 7 This is a partially sectional structural diagram of the rotating block and the upper conical block of the present invention.

[0029] Figure 8 This is a schematic structural diagram of the rotating frame, reduction motor 2, gear set, steering clamping plate, and electric push rod 2 of the present invention.

[0030] Figure 9 This is a schematic structural diagram of the positioning mechanism of the present invention.

[0031] Figure 10 This is a schematic structural diagram of the connecting plate, guide rod, placing clamping rod, ball, and screw of the present invention.

[0032] Wherein: 1 - workbench, 2 - optical detector, 201 - perforated motor shaft, 202 - non-perforated motor shaft, 21 - electric slide rail 1, 22 - electric slide rail 2, 23 - lifting frame, 3 - turntable, 31 - reduction motor 1, 4 - lower conical block, 5 - cylindrical block, 6 - moving frame, 61 - electric slide rail 3, 62 - lifting seat, 63 - electric push rod 1, 64 - slide rod 1, 7 - rotating block, 71 - drive motor, 8 - upper conical block, 9 - rotating frame, 91 - reduction motor 2, 92 - gear set, 10 - steering clamping plate, 101 - V-shaped part, 102 - electric push rod 2, 111 - gear box, 112 - rotating shaft, 113 - rotating rod, 114 - reduction motor 3, 115 - slide rod 2, 116 - positioning clamping rod, 121 - connecting plate, 122 - guide rod, 123 - placing clamping rod, 124 - ball, 125 - screw. Detailed implementation manners

[0033] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but it is not limited to the present invention.

[0034] Embodiment 1: A full-automatic detection device for motor shafts, refer to Figures 1-9, including a workbench 1, an optical detector 2, a turntable 3, a first reduction motor 31, a lower conical block 4, a cylindrical block 5, a moving frame 6, a rotating block 7, a driving motor 71, an upper conical block 8, a rotating frame 9, a steering clamping plate 10 and a second electric push rod 102. There are a first two-dimensional motion platform and a second two-dimensional motion platform on the workbench 1. Above the workbench 1, there are two optical detectors 2 that move through the first two-dimensional motion platform. The structure and detection principle of the optical detector 2 are prior arts. The turntable 3 is rotatably connected to the top of the workbench 1, and the first reduction motor 31 is bolted inside the workbench 1. The output shaft of the first reduction motor 31 is connected to the turntable 3. The lower conical block 4 and the cylindrical block 5 are rotatably connected to the turntable 3. The perforated motor shaft 201 and the non-perforated motor shaft 202 are respectively adapted to be placed on the lower conical block 4 and the cylindrical block 5. Above the workbench 1, there is a moving frame 6 that moves through the second two-dimensional motion platform. The bottom of the moving frame 6 is rotatably connected to the rotating block 7. The driving motor 71 is bolted to the moving frame 6. The output shaft of the driving motor 71 is connected to the rotating block 7. The upper conical block 8 that slides up and down is provided at the lower part of the rotating block 7. A compression spring is fixedly connected between the upper conical block 8 and the rotating block 7. The upper part of the moving frame 6 is rotatably connected to the rotating frame 9. Two steering clamping plates 10 are slidably connected to the rotating frame 9. Two second electric push rods 102 are connected to the rotating frame 9. The telescopic rods of the two second electric push rods 102 are respectively connected to the two steering clamping plates 10. The middle parts of the steering clamping plates 10 each have a V-shaped part 101. The steering clamping plates 10 can adapt to and clamp motor shafts with different thicknesses through the V-shaped parts 101.

[0035] Reference Figure 2 and Figure 3 , the first two-dimensional motion platform includes a first electric slide rail 21, a second electric slide rail 22 and a lifting frame 23. Two first electric slide rails 21 are connected to the rear side of the top of the workbench 1. The second electric slide rails 22 are installed on the sliders of the first electric slide rails 21. The lifting frames 23 are installed on the sliders of the second electric slide rails 22. The two optical detectors 2 are respectively installed on the two lifting frames 23.

[0036] Reference Figure 2 and Figure 4 , the second two-dimensional motion platform includes a third electric slide rail 61, a lifting seat 62, a first electric push rod 63 and a first slide bar 64. The third electric slide rail 61 is connected to the rear side of the top of the workbench 1. The lifting seat 62 is installed on the slider of the third electric slide rail 61. Four first slide bars 64 are slidably connected to the lifting seat 62. The moving frame 6 is connected to the four first slide bars 64. The first electric push rod 63 is bolted to the lifting seat 62. The telescopic rod of the first electric push rod 63 is connected to the moving frame 6.

[0037] Reference Figure 6 and Figure 8, the fully automatic motor shaft detection device further includes a driving mechanism for driving the rotating frame 9 to rotate. The driving mechanism includes a second reduction motor 91 and a gear set 92. The second reduction motor 91 is bolted to the top of the moving frame 6, and the output shaft of the second reduction motor 91 is transmitted to the rotating frame 9 through the gear set 92.

[0038] Reference Figure 1 , Figure 2 , Figure 4 and Figure 9 , the fully automatic motor shaft detection device further includes a positioning mechanism. The positioning mechanism includes a gear box 111, a rotating shaft 112, a rotating rod 113, a third reduction motor 114, a second sliding rod 115 and a positioning clamping rod 116. The gear box 111 is connected to the workbench 1. Two rotating shafts 112 with opposite rotating directions are rotatably connected to the gear box 111. Rotating rods 113 are fixedly connected to the rotating shafts 112. The third reduction motor 114 is bolted to the bottom of the gear box 111, and the output shaft of the third reduction motor 114 is connected to the left rotating shaft 112. The internal structure of the gear box 111 is prior art, and the function of the gear box 111 is for transmission. The two rotating shafts 112 are transmitted through the gear box 111. A pair of second sliding rods 115 are slidably connected to the rotating rods 113. A positioning clamping rod 116 is fixedly connected between the ends of each pair of second sliding rods 115. The mutually approaching side surfaces of the two positioning clamping rods 116 are both V-shaped. A return spring is fixedly connected between the positioning clamping rod 116 and the rotating rod 113.

[0039] The method for moving the position of the optical detector 2 is as follows: control the first electric slide rail 21 to move the second electric slide rail 22, the lifting frame 23 and the optical detector 2 left and right, and control the second electric slide rail 22 to move the lifting frame 23 and the optical detector 2 up and down. Thus, through the cooperation of the first electric slide rail 21 and the second electric slide rail 22, the optical detector 2 can move its position in the left-right direction and the up-down direction.

[0040] The method for moving the position of the moving frame 6 is as follows: control the third electric slide rail 61 to move the lifting seat 62, the first electric push rod 63 and the moving frame 6 up and down, and control the telescopic rod of the first electric push rod 63 to extend or retract to move the first sliding rod 64 and the moving frame 6 back and forth. Thus, through the cooperation of the third electric slide rail 61 and the first electric push rod 63, the moving frame 6 can move its position in the up-down direction and the back-and-forth direction.

[0041] The rotation method of the rotating rod 113 is as follows: Control the third reduction motor 114 to drive the left rotating shaft 112 to rotate clockwise by 90 degrees. Under the transmission of the gearbox 111, the right rotating shaft 112 is driven to rotate counterclockwise by 90 degrees, driving the rotating rod 113, the second sliding rod 115 and the positioning clamping rod 116 to rotate together with the rotating shaft 112 as the axis. At this time, the two rotating rods 113 open in the direction away from each other. On the contrary, control the third reduction motor 114 to drive the left rotating shaft 112 to rotate counterclockwise by 90 degrees, and the right rotating shaft 112 to rotate clockwise by 90 degrees. The rotating rod 113, the second sliding rod 115 and the positioning clamping rod 116 rotate reversely together with the rotating shaft 112 as the axis, and the two rotating rods 113 rotate and retract in the direction close to each other.

[0042] When detecting the perforated motor shaft 201, control the third reduction motor 114 to make the two rotating rods 113 rotate and open. Place the bottom end of the perforated motor shaft 201 on the lower conical block 4. The lower conical block 4 extends into the bottom end of the perforated motor shaft 201. The two rotating rods 113 retract. The perforated motor shaft 201 presses the two positioning clamping rods 116, and the return spring is compressed. Under the elastic force of the return spring, the two positioning clamping rods 116 clamp the perforated motor shaft 201. The moving frame 6 moves downward, driving the rotating block 7 and the upper conical block 8 to move downward together until the upper conical block 8 extends into the top end of the perforated motor shaft 201, and the bottom surface of the rotating block 7 presses against the top surface of the perforated motor shaft 201. The two rotating rods 113 rotate reversely and open again, so that the positioning clamping rods 116 no longer clamp the perforated motor shaft 201, and the positioning clamping rods 116 will not interfere with the subsequent detection of the perforated motor shaft 201 by the optical detector 2.

[0043] Then control the driving motor 71 to drive the rotating block 7 to rotate. Since the lower conical block 4 can rotate on the turntable 3, and the bottom surface of the rotating block 7 presses against the top surface of the perforated motor shaft 201, the rotating rotating block 7 will drive the perforated motor shaft 201 and the lower conical block 4 to rotate together. While the perforated motor shaft 201 is rotating, the two optical detectors 2 move positions in the vertical and front-back directions, and the optical detector 2 detects parameters such as the length, diameter, roundness, cylindricity, surface roughness and straightness of the perforated motor shaft 201.

[0044] The rotating block 7 stops rotating, and the two positioning clamping rods 116 clamp the perforated motor shaft 201. The moving frame 6, the rotating block 7, and the upper conical block 8 rise, and the upper conical block 8 leaves the perforated motor shaft 201. The moving frame 6 moves in the vertical and front-back directions to move the two steering clamping plates 10 to the left and right sides of the middle of the perforated motor shaft 201. The telescopic rod of the second electric push rod 102 is controlled to extend, and the two steering clamping plates 10 clamp the perforated motor shaft 201. The upward movement of the moving frame 6 drives the steering clamping plates 10 and the perforated motor shaft 201 to move upward, so that the bottom end of the perforated motor shaft 201 leaves the lower conical block 4. Under the driving action of the gear set 92, the second deceleration motor 91 is controlled to rotate the rotating frame 9 by 90 degrees, driving the steering clamping plates 10 and the perforated motor shaft 201 to rotate by 90 degrees, so that the perforated motor shaft 201 becomes in a horizontal state. At this time, the two optical detectors 2 can detect the ends of the perforated motor shaft 201.

[0045] When it is necessary to detect the non-perforated motor shaft 202, the first deceleration motor 31 is controlled to drive the turntable 3 to rotate 180 degrees, so that the positions of the lower conical block 4 and the cylindrical block 5 are swapped. The non-perforated motor shaft 202 is placed on the cylindrical block 5. When the positioning clamping rod 116 clamps the non-perforated motor shaft 202, the V-shaped side surface of the positioning clamping rod 116 can center-align the non-perforated motor shaft 202 with the cylindrical block 5, avoiding the position deviation of the non-perforated motor shaft 202, which is beneficial to subsequent detection. The detection method is the same as that of the perforated motor shaft 201. When the rotating block 7 presses the top surface of the non-perforated motor shaft 202, the upper conical block 8 will be squeezed into the inside of the rotating block 7, and the compression spring is compressed, so as to adapt to the non-perforated motor shaft 202. Subsequently, the circumference and ends of the non-perforated motor shaft 202 can be detected under the cooperation of the moving frame 6, the positioning clamping rod 116, the optical detector 2, and the steering clamping plate 10.

[0046] In this way, it can adapt to different types of motor shafts, not only can detect the circumference of the motor shaft, but also can detect the ends of the motor shaft, with good adaptability and high practicality.

[0047] A full-automatic detection method for motor shafts specifically includes the following steps:

[0048] S1: The two rotating rods 113 rotate and open, and the bottom end of the perforated motor shaft 201 is placed on the lower conical block 4. The two rotating rods 113 rotate in reverse and retract. Under the action of the return spring, the two positioning clamping rods 116 clamp the perforated motor shaft 201. The moving frame 6, the rotating block 7, and the upper conical block 8 move downward, the upper conical block 8 extends into the top end of the perforated motor shaft 201, the bottom surface of the rotating block 7 presses the top surface of the perforated motor shaft 201, and the positioning clamping rod 116 no longer clamps the perforated motor shaft 201;

[0049] S2: The rotating block 7 rotates, driving the perforated motor shaft 201 and the lower conical block 4 to rotate. At the same time, the two optical detectors 2 move to detect parameters such as the appearance, length, roundness, and cylindricity of the perforated motor shaft 201.

[0050] S3: The rotating block 7 stops rotating, the positioning clamping rod 116 clamps the perforated motor shaft 201, the moving frame 6 rises to make the upper conical block 8 leave the perforated motor shaft 201, the moving frame 6 moves, the control electric push rod two 102 makes the two steering clamping plates 10 clamp the perforated motor shaft 201, the bottom end of the perforated motor shaft 201 leaves the lower conical block 4, the rotating frame 9, the steering clamping plate 10 and the perforated motor shaft 201 rotate 90 degrees, and the two optical detectors 2 detect the end of the perforated motor shaft 201.

[0051] S4: If the motor shaft is a non-perforated motor shaft 202, the turntable 3 rotates 180 degrees to swap the positions of the lower conical block 4 and the cylindrical block 5. The non-perforated motor shaft 202 is placed on the cylindrical block 5, and the positioning clamping rod 116 makes the non-perforated motor shaft 202 centered and aligned with the cylindrical block 5 through the V-shaped side. When the rotating block 7 presses on the top surface of the non-perforated motor shaft 202, the upper conical block 8 retracts into the rotating block 7. With the cooperation of the moving frame 6, the positioning clamping rod 116, the optical detector 2 and the steering clamping plate 10, the circumferential side and the end of the non-perforated motor shaft 202 are detected.

[0052] Embodiment 2: On the basis of Embodiment 1, referring to Figure 1 、 Figure 2 、 Figure 4 and Figure 10 , it further includes a connecting plate 121, a guide rod 122, a placing clamping rod 123, a ball 124 and a screw rod 125. The top of the turntable 3 is fixedly connected with a connecting plate 121. A through hole for the cylindrical block 5 to pass through is opened in the middle of the connecting plate 121. Two pairs of guide rods 122 are connected to the connecting plate 121. A placing clamping rod 123 is slidably connected to each pair of guide rods 122. The mutually close sides of the two placing clamping rods 123 are both V-shaped to adapt to motor shafts of different thicknesses. Two screw rods 125 are rotatably connected to the connecting plate 121. The two screw rods 125 are respectively threadedly connected with the two placing clamping rods 123. A row of balls 124 are arranged on the mutually close sides of the two placing clamping rods 123 to reduce the friction force on the non-perforated motor shaft 202 during rotation through the balls 124.

[0053] After placing the holeless motor shaft 202 on the cylindrical block 5, manually rotate the two screw rods 125. Under the action of the threaded connection, the two placement clamping rods 123 slide along the guide rod 122, and the two placement clamping rods 123 approach each other until the ball 124 contacts the surface of the holeless motor shaft 202. When the rotating block 7 drives the holeless motor shaft 202 and the cylindrical block 5 to rotate, the ball 124 can rotate by itself under the action of friction, so as to limit the holeless motor shaft 202 during the rotation process, prevent the holeless motor shaft 202 from detaching from the cylindrical block 5, make the holeless motor shaft 202 stably located on the cylindrical block 5, and will not affect the detection of the holeless motor shaft 202 by the optical detector 2.

[0054] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form. Any technical solutions obtained by means of equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A fully automatic detection device for a motor shaft, comprising a workbench (1), above which are disposed two optical detectors (2) which are moved by a two-dimensional motion platform, wherein: The top of the workbench (1) is rotatably connected to a turntable (3) driven by a reduction motor (31), and the turntable (3) is rotatably connected to a lower conical block (4) and a cylindrical block (5). A moving frame (6) is provided above the workbench (1) and is moved by a two-dimensional motion platform (2). The bottom of the moving frame (6) is rotatably connected to a rotating block (7) driven by a driving motor (71). An upper conical block (8) that slides up and down is provided at the bottom of the rotating block (7). A compression spring is connected between the upper conical block (8) and the rotating block (7). The upper part of the moving frame (6) is rotatably connected to a rotating frame (9), and two steering splints (10) driven by an electric push rod (102) are slidably connected to the rotating frame (9).

2. A fully automatic motor shaft detection device as claimed in claim 1, characterized in that: The steering clamping plates (10) each have a V-shaped portion (101) in the middle.

3. A fully automatic motor shaft detection device as claimed in claim 2, characterized in that: The two-dimensional motion platform 1 comprises an electric slide rail 1 (21), the top of the workbench (1) is connected to two electric slide rails 1 (21), the sliders of the electric slide rail 1 (21) are each mounted with an electric slide rail 2 (22), the sliders of the electric slide rail 2 (22) are each mounted with a lifting frame (23), and the two optical detectors (2) are respectively mounted on the two lifting frames (23).

4. A fully automatic motor shaft detection device as claimed in claim 3, characterized in that: The two-dimensional motion platform 2 comprises an electric slide rail 3 (61), the top of the workbench (1) is connected to the electric slide rail 3 (61), a lifting seat (62) is installed on the slider of the electric slide rail 3 (61), a sliding rod 1 (64) is slidably connected to the lifting seat (62), the moving frame (6) is connected to the sliding rod 1 (64), the lifting seat (62) is connected to the electric push rod 1 (63), and the telescopic rod of the electric push rod 1 (63) is connected to the moving frame (6).

5. A fully automatic motor shaft detection device as claimed in claim 4, characterized in that: The motor shaft automatic detection device also includes a driving mechanism for driving the rotating frame (9) to rotate, the driving mechanism including a second reduction motor (91) and a gear set (92), the moving frame (6) is connected to the second reduction motor (91), and the output shaft of the second reduction motor (91) is transmitted to the rotating frame (9) through the gear set (92).

6. A fully automatic motor shaft detection device as claimed in claim 5, characterized in that: The fully automatic detection device for the motor shaft also includes a positioning mechanism, which includes a gear box (111). The workbench (1) is connected to the gear box (111). Two rotating shafts (112) with opposite rotating directions are rotatably connected to the gear box (111). The rotating shafts (112) are each connected to a rotating rod (113). A reduction motor (114) is connected to the bottom of the gear box (111). The output shaft of the reduction motor (114) is connected to one of the rotating shafts (112). The two rotating shafts (112) are driven through the gear box (111). A pair of sliding rods (115) are slidably connected to the rotating rod (113). A positioning clamping rod (116) is commonly connected between the ends of each pair of sliding rods (115). The side surfaces of the two positioning clamping rods (116) that are close to each other are both V-shaped. A reset spring is connected between the positioning clamping rod (116) and the rotating rod (113).

7. A fully automatic motor shaft detection device as claimed in claim 6, characterized in that: The motor shaft automatic detection device also includes a connecting plate (121), the top of the turntable (3) is connected to the connecting plate (121), the middle of the connecting plate (121) is provided with a through hole for the cylindrical block (5) to pass through, the connecting plate (121) is connected to two pairs of guide rods (122), each pair of guide rods (122) is slidably connected to a placement clamping rod (123), the sides of the two placement clamping rods (123) close to each other are both V-shaped, the connecting plate (121) is rotatably connected to two screw rods (125), the two screw rods (125) are respectively threadedly connected to the two placement clamping rods (123), and a row of balls (124) are provided on the sides of the two placement clamping rods (123) close to each other.

8. A motor shaft automatic detection method, based on the motor shaft automatic detection device according to claim 6, characterized in that: The specific steps include: S1: The two rotating rods (113) rotate and open, and the bottom end of the motor shaft with a hole (201) is placed on the lower conical block (4). The two rotating rods (113) are reversed and retracted. Under the action of the return spring, the two positioning clamping rods (116) clamp the motor shaft with a hole (201). The moving frame (6), the rotating block (7) and the upper conical block (8) move downward, and the upper conical block (8) extends into the top end of the motor shaft with a hole (201). The bottom surface of the rotating block (7) presses the top surface of the motor shaft with a hole (201), and the positioning clamping rod (116) no longer clamps the motor shaft with a hole (201); S2: The rotating block (7) rotates, driving the motor shaft with a hole (201) and the lower conical block (4) to rotate, and at the same time, the two optical detectors (2) move to detect parameters such as the appearance, length, roundness and cylindricity of the motor shaft with a hole (201); S3: the rotating block (7) stops rotating, the positioning clamp rod (116) clamps the motor shaft with a hole (201), the moving frame (6) rises to make the upper conical block (8) leave the motor shaft with a hole (201), the moving frame (6) moves, the second electric push rod (102) is controlled to make the two steering clamps (10) clamp the motor shaft with a hole (201), the bottom end of the motor shaft with a hole (201) leaves the lower conical block (4), the rotating frame (9), the steering clamp (10) and the motor shaft with a hole (201) rotate 90 degrees, and the end of the motor shaft with a hole (201) is detected by two optical detectors (2); S4: If the motor shaft is a motor shaft without a hole (202), the turntable (3) is rotated 180 degrees to swap the positions of the lower conical block (4) and the cylindrical block (5), and the motor shaft without a hole (202) is placed on the cylindrical block (5). The positioning clamp rod (116) aligns the motor shaft without a hole (202) and the cylindrical block (5) in the center through the V-shaped side surface. When the rotating block (7) presses the top surface of the motor shaft without a hole (202), the upper conical block (8) is retracted into the rotating block (7). The peripheral side and end of the motor shaft without a hole (202) are detected with the cooperation of the moving frame (6), the positioning clamp rod (116), the optical detector (2) and the steering clamp plate (10).

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