Drive shaft eddy current detection device

Abstract

The present invention discloses a drive shaft eddy current detection device, which belongs to the field of eddy current detection and includes a housing, a support beam and a guide plate fixedly installed inside the housing, the guide plate being arranged below the front side of the support beam, a support leg fixedly installed at the lower end of the housing, a motor being arranged on the right side of the housing, a fixing piece being fixedly installed at the lower end of the motor, an adjustment mechanism being arranged at the right end of the housing, a detection mechanism being arranged at the front end of the support beam, a clamping mechanism being arranged at the inner left end of the housing, a separation mechanism being provided at the lower end of the guide plate, the detection mechanism, the clamping mechanism and the separation mechanism being all transmission-connected with the adjustment mechanism, and the adjustment mechanism comprising an output shaft arranged at the left end of the motor. The present invention sets a clamping mechanism and uses the adjustment mechanism to adjust so that the output shaft of the motor is transmission-connected to the clamping mechanism, thereby causing the three groups of clamps to synchronously move inward to clamp and fix the drive shaft, thereby preventing the drive shaft from shaking during the detection process and affecting the detection results.

Description

Technical Field

[0001] The present invention relates to the technical field of eddy current detection, in particular to a drive shaft eddy current detection device. Background Art

[0002] Testing equipment is a simple tool used by industrial manufacturers to control product quality, improve production efficiency and control quality. It is suitable for products produced in large quantities. For example, surface cracks, hidden seams, slag inclusions and open cracks in products need to be screened and eliminated to ensure quality.

[0003] An existing patent (publication number: CN209043839U) discloses an eddy current testing device. When an object is found inside a first clamping jaw, the device automatically clamps the object. A first slider slides to the right at the bottom of a first track, causing the first clamping jaw to move to the right to the top of the pallet. The probe detects the object, making the detection more accurate and rapid. A second slider slides at the bottom of a second track, causing the second clamping jaw to move to the top of the pallet. The first and second partitions prevent damage to the object. Fully automated testing allows one person to perform multiple tests, increasing detection efficiency, avoiding misjudgments and missed inspections, reducing quality risks, and lowering customer complaints.

[0004] Existing technology generally uses manual visual magnifying glasses to detect crack defects on the circumferential surface of the drive shaft, but cannot detect internal defects of the drive shaft. At the same time, since the drive shaft is generally long and has a large aspect ratio, the detection speed is usually slow, making it difficult to ensure the efficiency and accuracy of the detection. In addition, when unqualified products are found in the drive shaft after inspection, manual classification is often required, resulting in high labor intensity, low degree of automation, and low work efficiency.

[0005] Therefore, a drive shaft eddy current detection device is proposed. Summary of the Invention

[0006] The object of the present invention is to provide a drive shaft eddy current detection device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a drive shaft eddy current detection device, comprising a shell, a support beam and a guide plate are fixedly installed inside the shell, the guide plate is arranged at the front side and below the support beam, a support leg is fixedly installed at the lower end of the shell, a motor is arranged on the right side of the shell, a fixing piece is fixedly installed at the lower end of the motor, an adjustment mechanism is arranged at the right end of the shell, a detection mechanism is arranged at the front end of the support beam, a clamping mechanism is arranged at the inner left end of the shell, a separation mechanism is provided at the lower end of the guide plate, the detection mechanism, the clamping mechanism and the separation mechanism are all connected to the adjustment mechanism in a transmission manner, the detection mechanism is used to detect the workpiece, the clamping mechanism is used to clamp and fix the workpiece, and the adjustment mechanism is used to detect the workpiece. The mechanism includes an output shaft arranged at the left end of the motor, the output shaft is rotatably connected to the outer shell, the outer surface of the output shaft is fixedly installed with electromagnet 1 and electromagnet 2, the electromagnet 1 is arranged on the right side of the electromagnet 2, and a long gear is arranged between the electromagnet 1 and the electromagnet 2, the right end of the long gear is fixedly installed with limit block 1, and the left end of the long gear is fixedly installed with limit block 2, the limit block 1, the limit block 2 and the long gear are all fixedly connected to the output shaft, the outer surface of the long gear is slidably connected with a transmission gear ring, the inner side of the transmission gear ring is provided with a tooth groove, and the transmission gear ring is meshed with the long gear through the tooth groove, and the adjustment mechanism is used to adjust the output shaft of the motor to transmit and connect the drive detection mechanism, the clamping mechanism and the separation mechanism respectively.

[0008] Furthermore, the adjustment mechanism also includes magnet 1 rotatably connected to the right end of the transmission gear ring, magnet 2 rotatably connected to the left end of the transmission gear ring, spring 1 fixedly installed between magnet 1 and electromagnet 1, and spring 2 fixedly installed between magnet 2 and electromagnet 2.

[0009] Furthermore, the adjustment mechanism also includes gear three arranged on the front side of the transmission gear ring, gear two arranged on the upper side of the gear three, and gear one arranged on the rear side of the gear two. The gear one, gear two and gear three are respectively arranged on three planes on the X-axis plane, and are all tightly arranged with the transmission gear ring on the Y-axis.

[0010] Furthermore, the clamping mechanism includes a rotating shaft 1 fixedly installed on the left end of gear 2, the rotating shaft 1 is rotatably connected to the outer shell, a transmission disk is provided on the left side of the gear 2, the transmission disk is fixedly connected to the rotating shaft 1, a limiting groove is provided on the left end surface of the outer shell corresponding to the transmission disk, a transmission groove is provided on the left end of the transmission disk, a transmission column is slidably connected to the inside of the limiting groove, the transmission column is inserted into the inside of the transmission groove, a splint is provided on the right side of the inner side of the outer shell corresponding to the limiting groove, the transmission column extends to the inside of the outer shell through the limiting groove and is fixedly connected to the splint, and the transmission groove, limiting groove, transmission column and splint are each provided in three groups, and are dispersed in a ring shape around rotating shaft 1.

[0011] Furthermore, the separation mechanism includes a rotating shaft 2 fixedly installed on the left end of gear 3, a unloading port is opened at the lower end of the guide plate, the unloading port is communicated with the interior of the shell, a closing plate is provided inside the unloading port, and the rotating shaft 2 passes through the shell and extends to the interior of the shell and is fixedly connected to the closing plate.

[0012] Furthermore, the detection mechanism includes a reciprocating screw fixedly installed on the left end of gear one, the reciprocating screw passes through the outer shell and extends to the interior of the outer shell and is rotatably connected to the inner left end of the outer shell, the outer surface of the reciprocating screw is spirally driven with a threaded sleeve, and a connecting rod is fixedly installed on the left side of the outer surface of the threaded sleeve.

[0013] Furthermore, the detection mechanism also includes a slide groove opened at the upper end of the support beam, a rack is fixedly installed at the inner rear end of the slide groove, a gear four is meshed with the front side of the rack, a rotating shaft three is fixedly installed on the upper end of the gear four, the connecting rod is arranged in an L shape, and one end of the connecting rod is rotatably connected to the rotating shaft three, the detection mechanism also includes a fixed sleeve arranged on the upper side of the support beam, the fixed sleeve is sleeved on the outer surface of the rotating shaft three and is fixedly connected to the connecting rod, a coil is fixedly installed on the inner wall of the fixed sleeve, a magnet three is fixedly installed inside the fixed sleeve, and the magnet three is fixedly connected to the rotating shaft three, a fixed rod is fixedly installed at the front end of the connecting rod, an eddy current sensor is fixedly installed at the lower end of the fixed rod, and the eddy current sensor is electrically connected to the coil through a wire.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention provides a clamping mechanism and uses an adjustment mechanism to adjust the output shaft of the motor to achieve transmission connection with the clamping mechanism, thereby causing the three sets of clamping plates to synchronously move inward to clamp and secure the drive shaft, thereby preventing the drive shaft from shaking during the test and affecting the test results.

[0016] 2. The present invention provides a detection mechanism and uses an adjustment mechanism to adjust the output shaft of the motor to be in transmission connection with the detection mechanism, so that the fixed rod carrying the eddy current detector moves to perform a comprehensive inspection of the drive shaft, thereby preventing unqualified drive shafts from entering the market and affecting product reputation;

[0017] 3. The present invention sets up a separation mechanism and uses an adjusting mechanism to adjust so that the output shaft of the motor is connected to the separation mechanism for transmission, so that the rotating shaft three carries the closing plate to rotate, thereby opening the discharge port, and then the unqualified drive shaft is discharged from the discharge port, and the drive shaft is classified. There is no manual unloading, which relatively improves the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is an overall structural view of the present invention;

[0020] Figure 2 For the present invention Figure 1 A in the middle is an enlarged schematic diagram;

[0021] Figure 3 It is a cross-sectional view of the overall structure of the present invention;

[0022] Figure 4 For the present invention Figure 3 The enlarged schematic diagram of point B in the middle;

[0023] Figure 5 is a cross-sectional view of the housing of the present invention;

[0024] Figure 6 For the present invention Figure 5 The enlarged schematic diagram of point C in the middle;

[0025] Figure 7 A bottom view of the overall structure of the present invention;

[0026] Figure 8 For the present invention Figure 7 The enlarged schematic diagram of point D in the middle;

[0027] Figure 9 A top view of the detection mechanism of the present invention;

[0028] Figure 10 For the present invention Figure 9 The enlarged schematic diagram at E in the middle;

[0029] Figure 11 is a cross-sectional view of the detection mechanism of the present invention;

[0030] Figure 12 For the present invention Figure 11 The enlarged schematic diagram at F in the middle;

[0031] Figure 13 For the present invention Figure 11 Enlarged schematic diagram at point G in the middle.

[0032] Explanation of the accompanying symbols: 1. housing; 2. support leg; 3. motor; 4. fixing member; 5. guide plate; 6. support beam; 7. output shaft; 8. long gear; 9. electromagnet 1; 10. electromagnet 2; 11. limit block 1; 12. limit block 2; 13. transmission gear ring; 14. magnet 1; 15. magnet 2; 16. spring 1; 17. spring 2; 18. gear 1; 19. gear 2; 20. gear 3; 21. Rotating shaft one; 22. Transmission plate; 23. Transmission groove; 24. Limiting groove; 25. Clamping plate; 26. Rotating shaft two; 27. Closing plate; 28. Discharge port; 29. Reciprocating screw; 30. Slide; 31. Threaded sleeve; 32. Connecting rod; 33. Rack; 34. Gear four; 35. Fixed sleeve; 36. Coil; 37. Rotating shaft three; 38. Magnet three; 39. Fixed rod; 40. Eddy current detector; 41. Transmission column. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] See also Figures 1 to 13 , the present invention provides a technical solution:

[0035] The drive shaft eddy current detection device includes a shell 1, a support beam 6 and a guide plate 5 are fixedly installed inside the shell 1, the guide plate 5 is arranged at the front side and below the support beam 6, a support leg 2 is fixedly installed at the lower end of the shell 1, a motor 3 is arranged on the right side of the shell 1, a fixing part 4 is fixedly installed at the lower end of the motor 3, an adjustment mechanism is arranged at the right end of the shell 1, a detection mechanism is arranged at the front end of the support beam 6, a clamping mechanism is arranged at the left end of the inner side of the shell 1, a separation mechanism is provided at the lower end of the guide plate 5, the detection mechanism, the clamping mechanism and the separation mechanism are all transmission-connected with the adjustment mechanism, the detection mechanism is used to detect the workpiece, and the clamping mechanism is used to clamp and fix the workpiece, the adjustment mechanism includes an output shaft 7 arranged at the left end of the motor 3, the output shaft 7 is rotatably connected to the shell 1, an electromagnet 9 and an electromagnet 2 10 are fixedly installed on the outer surface of the output shaft 7, the electromagnet 1 9 is arranged on the right side of the electromagnet 2 10, a long gear 8 is arranged between the electromagnet 1 9 and the electromagnet 2 10, the right end of the long gear 8 is fixedly installed with a limit block 11, and the left end of the long gear 8 is fixedly installed A limit block 2 12 is provided, and a limit block 11, a limit block 2 12 and a long gear 8 are fixedly connected to the output shaft 7. The outer surface of the long gear 8 is slidably connected to a transmission gear ring 13. A tooth groove is provided on the inner side of the transmission gear ring 13. The transmission gear ring 13 is meshed with the long gear 8 through the tooth groove. The adjustment mechanism is used to adjust the output shaft 7 of the motor 3 to respectively transmit the drive detection mechanism, the clamping mechanism and the separation mechanism. The adjustment mechanism also includes a magnet 14 rotatably connected to the right end of the transmission gear ring 13, and a magnet 14 is rotatably connected to the left end of the transmission gear ring 13. A magnet 2 15 is dynamically connected, a spring 16 is fixedly installed between magnet 14 and electromagnet 1 9, and a spring 2 17 is fixedly installed between magnet 2 15 and electromagnet 2 10. The adjustment mechanism also includes a gear 3 20 arranged on the front side of the transmission gear ring 13, a gear 2 19 is arranged on the upper side of the gear 3 20, and a gear 18 is arranged on the rear side of the gear 2 19. Gear 1 18, gear 2 19 and gear 3 20 are respectively arranged on three planes on the X-axis plane, and are all tightly arranged with the transmission gear ring 13 on the Y-axis.

[0036] By adopting the above technical solution, the present invention adjusts by setting an adjustment mechanism, and adjusts the output shaft 7 of the motor 3 to respectively transmit and connect the clamping mechanism, the separation mechanism and the detection mechanism, thereby completing the automatic detection of the drive shaft. Specifically: when the motor 3 rotates the output shaft 7, the output shaft 7 will carry the long gear 8 to rotate, and the long gear 8 engages with the tooth groove opened in the transmission gear ring 13, thereby causing the transmission gear ring 13 to rotate synchronously. At this time, the electromagnet 1 9 and the electromagnet 2 10 are not working, and the transmission gear ring 13 is meshed with the gear 2 19 for transmission, so that the gear 2 19 is connected to the clamping mechanism for transmission. When the detection mechanism needs to be transmitted, the output shaft 7 is rotated. When the dynamic connection is made, the electromagnet 19 is operated to generate magnetic force, attracting the magnet 14, so that the magnet 14 carries the transmission gear ring 13 to move to the right until it moves to the limit block 11. At this time, the transmission gear ring 13 will engage with the gear 18 for transmission, and then the gear 18 is connected to the detection mechanism for transmission. When the separation mechanism needs to be connected for transmission, the electromagnet 19 is disconnected and the electromagnet 2 10 is operated. The electromagnet 2 10 will generate magnetic force, attracting the magnet 2 15 and carrying the transmission gear ring 13 to move to the left to the limit block 2 12. At this time, the transmission gear ring 13 will engage with the gear 3 20 for transmission, and then the separation mechanism is connected for transmission.

[0037] like Figure 5 and Figure 6 As shown, the clamping mechanism includes a rotating shaft 21 fixedly installed at the left end of the gear 2 19, and the rotating shaft 21 is rotatably connected to the shell 1. A transmission disk 22 is provided on the left side of the gear 2 19, and the transmission disk 22 is fixedly connected to the rotating shaft 21. A limiting groove 24 is provided on the left end surface of the shell 1 corresponding to the transmission disk 22, and a transmission groove 23 is provided at the left end of the transmission disk 22. A transmission column 41 is slidably connected to the inside of the limiting groove 24, and the transmission column 41 is inserted into the inside of the transmission groove 23. A splint 25 is provided on the right side of the interior of the shell 1 corresponding to the limiting groove 24, and the transmission column 41 extends to the interior of the shell 1 through the limiting groove 24 and is fixedly connected to the splint 25. There are three corresponding groups of transmission grooves 23, limiting grooves 24, transmission columns 41 and splints 25, and they are dispersed in a ring shape around the rotating shaft 21.

[0038] By adopting the above technical solution, when the drive shaft is tested, the drive shaft cannot shake. Any shaking will affect the accuracy of the detection value of the drive shaft by the detection mechanism. Therefore, the present invention clamps and fixes the drive shaft by setting a clamping mechanism to prevent the drive shaft from shaking. Specifically: the operator places the drive shaft to be tested between the three sets of clamps 25 inside the shell 1, and then uses the adjustment mechanism to adjust it. The output shaft 7 of the motor 3 is connected to the clamping mechanism through the above technical solution. At this time, the motor 3 is started to make the output shaft 7 of the motor 3 rotate clockwise, and then the gear 2 19 is rotated clockwise through the above technical solution. , gear 2 19 is fixedly connected to shaft 2 26, so shaft 2 26 will carry the transmission disc 22 to rotate clockwise. A transmission groove 23 is provided at the left end of the transmission disc 22, and a transmission rod is inserted into the transmission groove 23. When the transmission disc 22 rotates, it will carry the transmission column 41 to move synchronously. The transmission column 41 is slidably connected to the inside of the limit groove 24. The limit groove 24 limits the displacement direction of the transmission column 41, so that the transmission column 41 carries the splint 25 to approach the drive shaft. The three groups of splints 25 move synchronously and cooperate with each other to clamp and fix the drive shaft, thereby completing the clamping and fixation of the drive shaft, avoiding the shaking of the drive shaft during detection and affecting the detection value.

[0039] like Figure 9 、 Figure 10 、 Figure 11 and Figure 12 As shown, the detection mechanism includes a reciprocating screw 29 fixedly installed at the left end of the gear 18, the reciprocating screw 29 passes through the shell 1 and extends to the interior of the shell 1 and is rotatably connected to the inner left end of the shell 1, the outer surface of the reciprocating screw 29 is spirally driven with a threaded sleeve 31, and a connecting rod 32 is fixedly installed on the left side of the outer surface of the threaded sleeve 31. The detection mechanism also includes a slide groove 30 opened at the upper end of the support beam 6, and a rack 33 is fixedly installed at the rear end of the slide groove 30. The front side of the rack 33 is meshed with a gear 4 34, and the upper end of the gear 4 34 is fixedly mounted with a rotating shaft 37. The connecting rod 32 It is arranged in an L shape, and one end of the connecting rod 32 is rotatably connected to the rotating shaft three 37. The detection mechanism also includes a fixed sleeve 35 arranged on the upper side of the support beam 6. The fixed sleeve 35 is sleeved on the outer surface of the rotating shaft three 37 and is fixedly connected to the connecting rod 32. A coil 36 is fixedly installed on the inner wall of the fixed sleeve 35, and a magnet three 38 is fixedly installed inside the fixed sleeve 35. The magnet three 38 is fixedly connected to the rotating shaft three 37. A fixing rod 39 is fixedly installed at the front end of the connecting rod 32, and an eddy current sensor is fixedly installed at the lower end of the fixed rod 39. The eddy current sensor and the coil 36 are electrically connected through a wire.

[0040] By adopting the above technical solution, the existing technology generally uses a visual magnifying glass to manually detect crack defects on the circumferential surface of the drive shaft, and cannot detect internal defects of the drive shaft. This detection method is not only labor-intensive but also very inefficient. For this reason, the present invention sets up a detection mechanism and uses an adjustment mechanism to adjust so that the output shaft 7 of the motor 3 is connected to the detection mechanism for transmission, so that the fixed rod 39 carries the eddy current detector 40 to move and perform a comprehensive inspection of the drive shaft, thereby preventing unqualified drive shafts from entering the market and affecting the product reputation. Specifically: after clamping, the detection mechanism is adjusted through the adjustment mechanism for transmission connection. Through the above technical method, when the output shaft 7 of the motor 3 rotates, the gear 18 will rotate, and the gear 18 is fixedly connected to the reciprocating screw 29, so the reciprocating screw 29 will rotate. When the reciprocating screw 29 rotates, the threaded sleeve 31 of the outer surface spiral transmission will carry the reciprocating screw. The connecting rod 32 moves, and one end of the connecting rod 32 is rotatably connected to the rotating shaft 37. The gear 4 34 fixedly connected to the lower end of the rotating shaft 37 is meshed with the rack 33. Therefore, when the connecting rod 32 carries the rotating shaft 37 and the gear 4 34 to move, the gear 4 34 and the rack 33 mesh together, and the rotating shaft 37 carries the magnet 3 38 to rotate inside the fixed sleeve 35. The fixed sleeve 35 is provided with a coil 36. The coil 36 generates a magnetic field. According to Lenz's law, the rotation of magnet 38 cuts the magnetic field of coil 36, generating current in coil 36. These currents then flow into eddy current detector 40 through the wires, causing eddy current detector 40 to work. The front end of connecting rod 32 is fixedly connected to fixing rod 39, and the lower end of fixing rod 39 is provided with eddy current detector 40. Therefore, the movement of connecting rod 32 will cause fixing rod 39 to carry eddy current detector 40 and move synchronously on the upper side of the drive shaft, and eddy current detector 40 will perform a comprehensive inspection of the drive shaft.

[0041] like Figure 7 、 Figure 8 and Figure 13 As shown, the separation mechanism includes a rotating shaft 26 fixedly installed at the left end of the gear 3 20, a discharge port 28 is opened at the lower end of the guide plate 5, the discharge port 28 is communicated with the interior of the shell 1, a closing plate 27 is provided inside the discharge port 28, and the rotating shaft 26 passes through the shell 1 and extends to the interior of the shell 1 and is fixedly connected to the closing plate 27.

[0042] By adopting the above technical solution, and because the drive shaft is generally long and has a large aspect ratio, the detection speed is usually slow, making it difficult to ensure the efficiency and accuracy of the detection. In addition, when unqualified products appear on the drive shaft after detection, manual classification is often required, resulting in high labor intensity, low degree of automation, and low work efficiency. Therefore, the present invention provides a separation device, which uses an adjusting mechanism to adjust so that the output shaft 7 of the motor 3 is connected to the separation mechanism for transmission, so that the rotating shaft 26 carries the closing plate 27 to rotate, thereby opening the discharge port 28, and then the unqualified drive shaft is discharged from the discharge port 28, and the drive shaft is classified without manual unloading, which relatively improves the detection efficiency. Specifically: when the eddy current detector 40 detects that the drive shaft is a qualified product, it will use the adjusting mechanism to make the output shaft 7 of the motor 3 connected to the clamping mechanism for transmission, so that the output shaft 7 of the motor 3 rotates counterclockwise, and then the above transmission technology is reversed to make the clamp The holding mechanism releases the clamping of the drive shaft, and the drive shaft falls onto the guide plate 5 due to gravity. At this time, the discharge port 28 is not opened, so the drive shaft will smoothly pass through the guide plate 5 and fall into the external collection device. When the eddy current detector 40 detects that the drive shaft is an unqualified product, the output shaft 7 of the motor 3 is first connected to the separation mechanism through the adjustment mechanism. Through the above technical solution, the rotation of the output shaft 7 of the motor 3 will cause the gear 18 to rotate. The left end of the gear 18 is fixedly installed with the rotating shaft 26, and the rotating shaft 26 will carry the closing plate 27 to rotate, thereby opening the discharge port 28. Then the adjustment mechanism is controlled to make the output shaft 7 of the motor 3 connected to the clamping mechanism, releasing the clamping state of the drive shaft, and the drive shaft falls onto the guide plate 5. It rolls to the discharge port 28 due to the influence of gravity. At this time, the discharge port 28 is open, so the drive shaft will pass through the discharge port 28 and fall into another collection device in the outside world.

[0043] Instructions for use: The present invention sets an adjustment mechanism, first adjusts the output shaft 7 of the motor 3 to transmit the connection to the clamping mechanism, so that the three groups of clamps 25 are synchronously close to the drive shaft and clamp the drive shaft, and then the output shaft 7 of the motor 3 is transmitted and connected to the measuring mechanism through the adjustment mechanism, so that the eddy current detector 40 performs a comprehensive inspection of the drive shaft. When it is detected that the drive shaft is an unqualified product, the separation mechanism is transmitted and connected through the adjustment mechanism, and the discharge port 28 is opened. Then, the output shaft 7 of the motor 3 is transmitted and connected to the clamping device again through the adjustment mechanism, and the clamping of the drive shaft is released. The drive shaft will fall onto the guide plate 5 under the influence of gravity and roll to the discharge port 28 for discharge. When it is detected that the drive shaft is a qualified product, the output shaft 7 of the motor 3 is directly transmitted and connected to the clamping mechanism through the adjustment mechanism to release the drive shaft. At this time, the discharge port 28 is not opened, and the drive shaft will fall into another collection device through the guide plate 5, thereby completing the inspection and classification of the drive shaft.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A drive shaft eddy current detection device, comprising a housing (1), wherein a support beam (6) and a guide plate (5) are fixedly mounted inside the housing (1), wherein the guide plate (5) is arranged below the front side of the support beam (6), a support leg (2) is fixedly mounted at the lower end of the housing (1), a motor (3) is arranged on the right side of the housing (1), and a fixing member (4) is fixedly mounted at the lower end of the motor (3); Its characteristics are: The right end of the housing (1) is provided with an adjustment mechanism, the front end of the support beam (6) is provided with a detection mechanism, the left end of the interior of the housing (1) is provided with a clamping mechanism, the lower end of the guide plate (5) is provided with a separation mechanism, the detection mechanism, the clamping mechanism and the separation mechanism are all connected to the adjustment mechanism in a transmission manner, the detection mechanism is used to detect the workpiece, and the clamping mechanism is used to clamp and fix the workpiece; The regulating mechanism comprises an output shaft (7) provided at the left end of the motor (3), the output shaft (7) being rotatably connected to the housing (1), an electromagnet 1 (9) and an electromagnet 2 (10) being fixedly mounted on the outer surface of the output shaft (7), the electromagnet 1 (9) being provided on the right side of the electromagnet 2 (10), a long gear (8) being provided between the electromagnet 1 (9) and the electromagnet 2 (10), a limit block 1 (11) being fixedly mounted on the right end of the long gear (8), and a limit block 1 (11) being fixedly mounted on the left end of the long gear (8). A second limit block (12) is fixedly installed, the first limit block (11), the second limit block (12) and the long gear (8) are fixedly connected to the output shaft (7), the outer surface of the long gear (8) is slidably connected to a transmission gear ring (13), the inner side of the transmission gear ring (13) is provided with a tooth groove, the transmission gear ring (13) and the long gear (8) are meshed with each other through the tooth groove, and the adjustment mechanism is used to adjust the output shaft (7) of the motor (3) to respectively perform transmission connection on the drive detection mechanism, the clamping mechanism and the separation mechanism; The regulating mechanism further comprises a magnet 1 (14) rotatably connected to the right end of the transmission gear ring (13), a magnet 2 (15) rotatably connected to the left end of the transmission gear ring (13), a spring 1 (16) fixedly installed between the magnet 1 (14) and the electromagnet 1 (9), and a spring 2 (17) fixedly installed between the magnet 2 (15) and the electromagnet 2 (10); The adjustment mechanism further includes a gear three (20) arranged on the front side of the transmission gear ring (13), a gear two (19) arranged on the upper side of the gear three (20), and a gear one (18) arranged on the rear side of the gear two (19), wherein the gear one (18), the gear two (19) and the gear three (20) are respectively arranged on three planes on the X-axis plane, and are all arranged in close contact with the transmission gear ring (13) on the Y-axis; The clamping mechanism includes a rotating shaft (21) fixedly mounted on the left end of the gear (19), the rotating shaft (21) being rotatably connected to the housing (1), a transmission disc (22) being provided on the left side of the gear (19), the transmission disc (22) being fixedly connected to the rotating shaft (21), a limiting groove (24) being provided on the left end surface of the housing (1) corresponding to the transmission disc (22), a transmission groove (23) being provided on the left end of the transmission disc (22), and a sliding groove (24) being provided inside the limiting groove (24). A transmission column (41) is connected, and the transmission column (41) is inserted into the interior of the transmission groove (23). A clamping plate (25) is provided on the right side of the interior of the housing (1) corresponding to the limiting groove (24). The transmission column (41) extends to the interior of the housing (1) through the limiting groove (24) and is fixedly connected to the clamping plate (25). The transmission groove (23), the limiting groove (24), the transmission column (41) and the clamping plate (25) are each provided in three groups, and are dispersedly arranged in a ring shape around the rotating shaft (21).

2. The drive shaft eddy current detection device according to claim 1, characterized in that: The separation mechanism includes a second rotating shaft (26) fixedly mounted on the left end of the gear third (20), a discharge port (28) is provided at the lower end of the guide plate (5), the discharge port (28) is communicated with the interior of the housing (1), a closing plate (27) is provided inside the discharge port (28), and the second rotating shaft (26) passes through the housing (1) and extends to the interior of the housing (1) and is fixedly connected to the closing plate (27).

3. The drive shaft eddy current detection device according to claim 2, characterized in that: The detection mechanism includes a reciprocating screw (29) fixedly mounted on the left end of the gear 1 (18), the reciprocating screw (29) passes through the housing (1) and extends to the interior of the housing (1) and is rotatably connected to the left end of the interior of the housing (1), the outer surface of the reciprocating screw (29) is spirally driven with a threaded sleeve (31), and a connecting rod (32) is fixedly mounted on the left side of the outer surface of the threaded sleeve (31).

4. The drive shaft eddy current detection device according to claim 3, characterized in that: The detection mechanism further comprises a slide groove (30) provided at the upper end of the support beam (6), a rack (33) being fixedly installed at the inner rear end of the slide groove (30), a gear four (34) being meshed and transmitted at the front side of the rack (33), a rotating shaft three (37) being fixedly installed at the upper end of the gear four (34), the connecting rod (32) being arranged in an L shape, and one end of the connecting rod (32) being rotatably connected to the rotating shaft three (37), the detection mechanism further comprises a fixed sleeve (35) provided at the upper side of the support beam (6), the fixed sleeve (35) It is sleeved on the outer surface of the rotating shaft three (37) and fixedly connected to the connecting rod (32); the inner wall of the fixed sleeve (35) is fixedly installed with a coil (36); the interior of the fixed sleeve (35) is fixedly installed with a magnet three (38); the magnet three (38) is fixedly connected to the rotating shaft three (37); the front end of the connecting rod (32) is fixedly installed with a fixed rod (39); the lower end of the fixed rod (39) is fixedly installed with an eddy current sensor (40); the eddy current sensor (40) is electrically connected to the coil (36) through a wire.

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