TWM530405U - Eddy current separator - Google Patents

Description

Eddy current inspection machine

The present invention relates to a sorting machine, and more particularly to an eddy current sorting machine for detecting whether a surface of a workpiece such as a screw or a nut is defective.

Screws, nuts and other workpieces are indispensable parts of many products, equipment, instruments, etc. In the past, they were subjected to impact processing, cutting and other related processing steps before being transferred to the next process. During the manufacturing, processing and transportation of the workpiece, cracks, breakages, scratches, etc. are inevitable on the surface. Therefore, in order to ensure the quality of the shipment, the workpieces must be tested after the completion of the manufacturing to confirm whether the surface is defective. . At present, there are a variety of sorting machines for detecting workpieces and distinguishing them from good and bad products. The present invention provides an eddy current sorting machine for consumers to choose.

Therefore, the purpose of the present invention is to provide an innovative eddy current metering machine.

Therefore, the novel eddy current sorting machine is used for sorting a workpiece, and comprises a guiding device, a pressing device, a driving device, and a detecting device. The guiding device comprises a rotatable indexing disc and at least one carrying unit rotatably mounted about the self-axis to the indexing disc and capable of carrying the workpiece, the indexing disc being drivable to drive the The carrier unit is moved to a detection position. The pressing device includes a top pressing unit movably disposed above the detecting position and operable to press the workpiece downwardly to the carrying unit. The drive unit includes a side turn unit movably disposed adjacent the detection position for driving the carrier unit to rotate about its own axis. The detecting device includes an eddy current detector disposed adjacent to the detecting position and detecting the workpiece, and the eddy current detector can drive the carrying unit together with the workpiece while the side rotating unit rotates And the detection of the workpiece is performed.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , an embodiment of the eddy current testing machine of the present invention can be used for detecting defects such as cracks, breakages, scratches and the like on the surface of several workpieces 1 and distinguishing them into good products and not Good, and for convenience of explanation, the following is only described by one of the workpieces 1. The workpiece 1 is a part such as a screw, a nut or any surface defect that needs to be detected before leaving the factory, in this embodiment Take the nut as an example to illustrate.

The eddy current sorting machine comprises a guiding device 2, a pressing device 3, a driving device 4, a detecting device 5, and a sorting device 6.

The guiding device 2 includes a substantially disk-shaped indexing plate 21, four carrying units 22 rotatably mounted on the indexing plate 21, and one disposed under the indexing plate 21 and can be used for driving The indexing disk 21 is a servo motor 23 that intermittently rotates. The indexing disk 21 has a plurality of pockets 211 formed on the top surface at an angular interval from each other and on the same circumference. The carrying units 22 are respectively mounted on the equal-receiving slots 211, and each of the carrying units 22 has a rotating base 221 rotatably mounted on its own axis to the corresponding receiving slot 211, and a removably disposed on the rotating base The top of the seat 221 is used to carry the carrier 222 of the workpiece 1. It should be noted that the number of the carrying units 22 is not limited to four, and may be one, two, three, etc. according to actual requirements, and for convenience of description, only the carrying unit of the workpiece 1 is carried by one of the following. 22 to illustrate.

The indexing disk 21 can be driven by the servo motor 23 to drive the load bearing units 22 sequentially in a feeding position 24 for the workpiece 1 to be placed, and a cleaning position 25 for cleaning and processing the workpiece 1. a detecting position 26 for detecting the workpiece 1, and a discharging position 27 for taking out the workpiece 1, that is, the workpiece 1 will sequentially pass and pause at the feeding position 24, the washing The net position 25, the detection position 26 and the discharge position 27. Of course, the eddy current metering machine further includes a loading robot 7 for feeding the workpiece 1 to the feeding position 24, and a discharging mechanism for removing the workpiece 1 from the discharging position 27. The arm (not shown) will not be explained here.

The pressing device 3 includes a pressing unit 31 movably disposed above the detecting position 26 and operable to press down the workpiece 1 to the carrying unit 22. The pressing unit 31 has a shaft tube 311 extending upright and upright, a top cover 312 covering the top of the shaft tube 311, a shaft 313 movably and rotatably disposed in the shaft tube 311, and a setting a spring 314 disposed in the shaft tube 311 and located between the top cover 312 and the shaft 313, and a detachable portion of the shaft 313 extending from the bottom of the shaft tube 311 for pressing the workpiece 1 The head 315 has a connecting seat 316 connected to the periphery of the shaft tube 311 and extending to one side. The spring 314 is a compression spring 314 which can provide an elastic force for the shaft 313 to extend up and down with respect to the shaft tube 311. The pressing device 3 further includes an upright column 32, and a pneumatic cylinder 33 mounted on the upright column 32 and driving the connecting seat 316 to move up and down.

The driving device 4 includes a machine table 41 disposed on the side of the detecting position 26, a sliding seat 42 movably mounted on the machine table 41, and one mounted on the sliding seat 42 for driving the carrying unit 22 A side turn unit 43 that rotates about its own axis. The carriage 42 can drive the side rotation unit 43 to move between the carrier unit 22 and the carrier unit 22. The side turning unit 43 has a side turning wheel 431 rotatably mounted to the sliding seat 42 adjacent to the detecting position 26, a driving wheel 433 rotatably mounted to the sliding seat 42 and away from the detecting position 26, and two An O-ring 432 is disposed on the periphery of the side wheel 431 and the driving wheel 433 and can contact the driving unit 22, and one can be used to drive the driving wheel 433 to rotate to drive the side rotation via the O-ring 432. The motor 434 on which the wheel 431 rotates. It should be noted that the number of the O-rings 432 is not limited to two, and may be one, three, etc. according to actual needs.

The detecting device 5 includes a moving seat 51 movably disposed at one side of the detecting position 26, a swinging head 52 rotatably mounted to the moving seat 51, and a swinging head 52 disposed on the swinging head 52 for detecting the An eddy current detector 53 of the workpiece 1 and a processor 54 electrically connected to the eddy current detector 53. By the mutual matching of the moving seat 51 and the swinging head 52, the eddy current detector 53 can be driven adjacent to the workpiece 1 or away from the workpiece 1. The eddy current detector 53 is provided with a plurality of coils of excitation electromagnetic coils (not shown), which can be used for monitoring the structure and nondestructive nondestructive examination (NDE) of various metal products, and is an excitation electromagnetic coil carrying alternating current. Approaching the workpiece 1 causes the workpiece 1 to induce an alternating magnetic field, thereby inducing a swirling current, and the amplitude and phase of the induced current vary with the difference in conductor characteristics of the workpiece 1 to detect the detecting function of the workpiece 1. And will generate a set of test data after the test. The processor 54 receives and processes the detection data transmitted by the eddy current detector 53 and determines whether the workpiece 1 conforms to a predetermined specification and simultaneously issues a control signal.

The sorting device 6 is disposed at one side of the discharge position 27, and can receive and determine the control signal transmitted by the processor 54. If the control signal indicates that the workpiece 1 meets a predetermined specification, the sorting device 6 allows The workpiece 1 is transported to a good product area (not shown). If the control signal indicates that the workpiece 1 does not meet the predetermined specifications, the sorting device 6 will transport the workpiece 1 to a defective product area (not shown). .

In use, the servo motor 23 is activated to drive the indexing plate 21 to rotate stepwise, and the workpiece 1 is clamped to the feeding position 24 through the feeding robot 7 adjacent to the feeding position 24. The carrying unit 22 is placed on the carrier 222. Then, when the indexing disk 21 is rotated again to move the workpiece 1 to the cleaning position 25, the workpiece 1 can be cleaned by a cleaning device not shown. Then, when the workpiece 1 is moved to the detection position 26 by the rotation of the indexing disk 21, it is temporarily stopped to perform the detecting operation of the workpiece 1.

As shown in FIG. 4, when the detecting operation is performed, the pressing device 3 drives the pneumatic cylinder 33 to drive the pressing unit 31 to move downward until the head 315 presses the workpiece 1 and positions the workpiece 1 After the carrying unit 22, the sliding block 42 is driven to drive the side rotating unit 43 to move closer to the carrying unit 22, the O-rings 432 are abutted against the rotating base 221, and then the motor 434 drives the driving. The wheel 433 rotates to frictionally drive the O-rings 432 to rotate the side rotating wheel 431, and the rotating seat 221 is frictionally driven by the O-rings 432 to rotate the workpiece 1 together via the carrier 222. Above the circle, the eddy current detector 53 is driven to move closer to the workpiece 1 and moves downward along the outside of the workpiece 1 to fully detect the workpiece 1, that is, the eddy current detector 53 is in the side turn unit 43, while the carrier unit 22 is rotated together with the workpiece 1, the workpiece 1 can be detected together, and the detection data is generated and transmitted to the processor 54, and the processor 54 processes and analyzes the workpiece 1 After the good, the control signal will be sent to complete the inspection. At this time, the urging means 3, the rotation drive means 4 and the detecting means 5 will all return to the starting position. Referring to FIG. 1, finally, the indexing plate 21 will rotate to drive the workpiece 1 to the discharge position 27. The sorting device 6 will match the discharge robot according to the indication of the control signal, and the workpiece 1 will be transferred. Go to the good product area or the defective product area to complete the sorting operation of the workpiece 1.

In summary, the eddy current sorting machine of the present invention can stably and accurately feed the workpiece 1 to the feeding position 24, the washing position 25, the detecting position 26 and the discharging by the guiding device 2. Position 27, and the workpiece 1 is stably fixed to the carrying unit 22 by the pressing device 3, and the bearing head 222 of the guiding device 2 and the head 315 of the pressing device 3 are replaceable. The design can match the size of the workpiece 1 detected, and the carrier 222 and the head 315 can be easily and easily replaced, and the utility model is widely used. In addition, the spring 314 of the pressing device 3 can be utilized. The elastic cushioning design can prevent the head 315 from directly pressing down and impacting the workpiece 1. Therefore, the workpiece 1 can be protected to ensure the quality of the inspection, and the detection stability and accuracy can be effectively improved, which is an unprecedented innovation. Structure, it does achieve the purpose of this new type.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

1‧‧‧Workpiece
2‧‧‧Feeding device
21‧‧‧Division
211‧‧‧ 容容
22‧‧‧Loading unit
221‧‧‧ rotating seat
222‧‧‧ bearing seat
23‧‧‧Servo motor
24‧‧‧Feeding position
25‧‧‧ Washing position
26‧‧‧Detection location
27‧‧‧Drawing position
3‧‧‧Pushing device
31‧‧‧Top pressure unit
311‧‧‧ shaft tube
312‧‧‧Top cover
313‧‧‧ shaft
314‧‧ ‧ spring
315‧‧‧ head
316‧‧‧Connecting Block
32‧‧‧right column
33‧‧‧ pneumatic cylinder
4‧‧‧ drive device
41‧‧‧ machine
42‧‧‧Slide
43‧‧‧Side unit
431‧‧‧Side wheel
432‧‧‧O-ring
433‧‧‧ drive wheel
434‧‧‧Motor
5‧‧‧Detection device
51‧‧‧Mobile seat
52‧‧‧Swing head
53‧‧‧ eddy current detector
54‧‧‧ processor
6‧‧‧ sorting device
7‧‧‧Feeding robot

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: Figure 1 is an incomplete top view of an embodiment of the eddy current metering machine of the present invention; An incomplete partial cross-sectional view of the embodiment, the description can be used to detect a workpiece; FIG. 3 is an incomplete partial cross-sectional enlarged view of the embodiment, illustrating that a guiding device is positioned at a detecting position, that is, the workpiece is to be detected And FIG. 4 is a view similar to FIG. 3, illustrating that the guiding device is in the detection position and the workpiece is being detected.

1‧‧‧Workpiece

2‧‧‧Feeding device

21‧‧‧Division

211‧‧‧ 容容

22‧‧‧Loading unit

23‧‧‧Servo motor

24‧‧‧Feeding position

33‧‧‧ pneumatic cylinder

4‧‧‧ drive device

41‧‧‧ machine

42‧‧‧Slide

43‧‧‧Side unit

5‧‧‧Detection device

51‧‧‧Mobile seat

26‧‧‧Detection location

3‧‧‧Pushing device

31‧‧‧Top pressure unit

32‧‧‧right column

52‧‧‧Swing head

53‧‧‧ eddy current detector

7‧‧‧Feeding robot

Claims (10)

An eddy current sorting machine for sorting a workpiece, and comprising: a guiding device comprising a rotatable indexing disc, and at least one rotatably mounted to the indexing disc about its own axis and capable of a carrying unit for carrying the workpiece, the indexing plate being driven to move the carrying unit to a detecting position; a pressing device comprising a movably disposed above the detecting position and being usable for pressing down The workpiece is positioned on the top pressing unit of the carrying unit; a driving device includes a side rotating unit movably disposed beside the detecting position for driving the carrying unit to rotate about its own axis; and a detecting device An eddy current detector for detecting the workpiece adjacent to the side of the detecting position, the eddy current detector can perform the same while the side rotating unit drives the carrying unit together with the workpiece to rotate Detection of the workpiece. The eddy current sampling machine of claim 1, wherein the carrying unit of the guiding device has a rotating base that can be rotated by the side rotating unit about its own axis, and a removably disposed at the The top of the swivel mount is used to carry the carrier of the workpiece. The eddy current sorting machine according to claim 2, wherein the pressing unit of the pressing device has a shaft tube extending upright and upright, a top cover covering the top of the shaft tube, a movable and a shaft rotatably disposed in the shaft tube, and a head detachably disposed at a bottom of the shaft extending from the shaft tube for pressing the workpiece. The eddy current sorting machine of claim 3, wherein the pressing unit of the pressing device further has a spring disposed in the shaft tube and located between the top cover and the shaft, the spring It is a compression spring. The eddy current testing machine according to claim 4, wherein the pressing unit of the pressing device further has a connecting base connected to a periphery of the shaft tube and extending to one side, the pressing device further comprising a straight a column, and a pneumatic cylinder mounted on the upright column and driving the connecting seat to move up and down. The eddy current sorting machine according to claim 1 or 5, wherein the side turning unit of the driving device has a side turning wheel rotatably adjacent to the detecting position, and a rotatably away from the detecting position a driving wheel, and at least one O-ring sleeved on the side of the side rotating wheel and the driving wheel and contacting the pushing unit. The eddy current sorting machine of claim 6, wherein the driving device further comprises a machine, a sliding seat movably mounted to the machine and mounted for the side rotating unit, the sliding seat can be driven The side turning unit moves between abutting the carrying unit and leaving the carrying unit, the side turning unit further having a motor for driving the driving wheel. The eddy current testing machine according to claim 1 or 5, wherein the detecting device further comprises a moving seat movable relative to the indexing plate, and a rotatably mounted to the moving seat for the eddy current The oscillating head set by the detector. The eddy current sorting machine of claim 1, wherein the guiding device comprises a plurality of the carrying units, the indexing disc having a plurality of angularly spaced apart from each other formed on the top surface and mounted for the carrying units groove. The eddy current testing machine of claim 9, wherein the guiding device further comprises a servo motor that can be used to drive the indexing wheel to intermittently rotate, and the indexing plate can be driven by the servo motor to drive the The carrying unit is sequentially moved between a feeding position at which the workpiece can be placed, a detecting position for detecting the workpiece, and a discharging position at which the workpiece can be taken away.