Detector

Abstract

The present invention discloses an inspection machine, which includes a feeding device and a conveying device arranged in parallel and at intervals, a steering device disposed between the feeding device and the conveying device, a height detection device and a vision detection device that are erected above the conveying device and arranged in sequence along the conveying direction of the conveying device. The feeding device is used to transfer the filter to the steering device. The steering device can clamp the filter and rotate it by a certain angle so that the end of the filter with PIN pins faces upward. The conveying device is used to convey the filter with PIN pins facing upward at the steering device. The height detection device is used to detect the assembly height of the PIN pins of the conveyed filter, and the vision detection device is used to detect the assembly position of the PIN pins of the conveyed filter. This machine has a high degree of automation and can realize an automated flow operation for detecting the assembly of PIN pins of the magnetic core in the filter.

Description

Technical Field

[0001] The present invention relates to the assembly of filters, and particularly to an inspection machine for detecting the assembly accuracy of PIN pins of magnetic cores in filters. Background Art

[0002] In the production and processing of filters, it is often necessary to assemble components such as the sealing ring, magnetic core, and end cap of the filter onto its housing. The assembly process specifically involves operations such as feeding of each component, alignment and connection, glue injection, static curing of the glue, inspection after curing, labeling, and blanking. There are many processes, and the assembly is not easy. Moreover, due to the certain directionality and assembly accuracy requirements between the components, the assembly becomes more difficult. Among them, it is particularly important whether the assembly height and assembly position of the PIN pins of the magnetic core meet the accuracy requirements during the assembly process. Therefore, in order to ensure the assembly quality, there is an urgent need for an inspection machine with a compact structure, high detection accuracy, high efficiency, and high automation to realize the detection of the assembly accuracy of the PIN pins of the magnetic core. Summary of the Invention

[0003] The purpose of the present invention is to provide an inspection machine that can achieve automated flow operation, has a compact structure, high efficiency, and high detection accuracy to detect the assembly accuracy of the PIN pins of the magnetic core.

[0004] To achieve the above purpose, the present invention discloses an inspection machine for detecting the assembly accuracy of PIN pins of magnetic cores in filters. The inspection machine includes a feeding device and a conveying device arranged in parallel and at intervals, a turning device arranged between the feeding device and the conveying device, a height detection device and a vision detection device arranged above the conveying device and arranged in sequence along the conveying direction of the conveying device. The feeding device is used to transfer the filter to the turning device. The turning device can clamp the filter and rotate it by a certain angle so that the end of the filter with PIN pins faces upward. The conveying device is used to convey the filter with PIN pins facing upward at the turning device. The height detection device is used to detect the assembly height of the PIN pins of the filter passing through. The vision detection device is used to detect the assembly position of the PIN pins of the filter passing through.

[0005] Preferably, the turning device, the output end of the feeding device, and the input end of the conveying device are arranged in a straight line, so that the feeding device and the conveying device only need to move in a short straight line to complete the corresponding picking and delivering operations, further optimizing the structure.

[0006] Preferably, the steering device includes two rack and pinion mechanisms arranged opposite to each other. At least one of the two rack and pinion mechanisms can perform a linear motion of approaching or separating from the other to clamp or release the filter located between the two rack and pinion mechanisms. The two rack and pinion mechanisms can also act synchronously to drive the filter clamped between them to rotate.

[0007] Preferably, the rack and pinion mechanism includes a mounting plate, a first linear driver installed on the back of the mounting plate, a rack connected to the output end of the first linear driver, at least one gear meshing with the rack, and at least one positioning seat rotatably installed on the front of the mounting plate. The positioning seats are connected to the gears in a one-to-one correspondence. Then, the first linear driver can drive the rack to linearly move along the longitudinal direction of the mounting plate, so that the gears meshing with the rack rotate accordingly, thereby driving the positioning seats to rotate. Among them, when the number of the positioning seats and the gears is multiple, the multiple gears can be arranged at intervals and equidistantly along the longitudinal direction of the rack, so that multiple filters can be rotated and adjusted at one time, further improving the detection efficiency.

[0008] Preferably, the steering device further includes a base and two second linear drivers installed on opposite sides of the base. The two mounting plates are respectively connected to the output ends of the second linear drivers, and the two mounting plates are arranged parallel and spaced apart in a direction perpendicular to the base.

[0009] Preferably, the conveying device includes a conveying line, a transfer mechanism that shuttles between the conveying line and the steering device, and a carrier plate that conveys on the conveying line. The transfer mechanism is used to pick up the filter with the PIN pins facing up on the steering device and send it to the carrier plate, and the carrier plate is used to drive the filter to convey on the conveying line.

[0010] Preferably, the conveying line includes a first conveying line, a second conveying line, and a third conveying line that are connected in sequence. The steering device is located beside the first conveying line, the height detection device and the vision detection device are correspondingly located above the second conveying line and the third conveying line, and the conveying widths of the first conveying line, the second conveying line, or / and the third conveying line are adjustable.

[0011] Preferably, the conveying device further includes a positioning mechanism, a lifting mechanism, and a return line. The positioning mechanism is arranged on the upper side, lower side, left side, and right side of the conveying line and is used to restrict the movement of the filter in the carrier. The lifting mechanism is arranged at the bottom end of the conveying line and can linearly move relative to the conveying line along the Z-axis direction and is used to block or allow the conveyance of the carrier on the conveying line. The return line is arranged below the conveying line and is used to receive the empty carrier and convey the carrier to the conveying line.

[0012] Preferably, the height detection device includes a test probe and a probe moving mechanism connected to the test probe. The probe moving mechanism is used to drive the test probe to linearly reciprocate along the Z-axis direction and the X-axis direction, so that the test probe can be translated above the filter in the carrier and can be vertically inserted into the filter to detect the installation height of the PIN pins in the filter.

[0013] Preferably, the vision detection device includes an industrial camera and a camera moving mechanism connected to the industrial camera. The camera moving mechanism is used to drive the industrial camera to linearly reciprocate along the X-axis direction to detect the installation positions of the PIN pins in a plurality of filters arranged at intervals in the carrier one by one.

[0014] Compared with the prior art, the feeding device and the conveying device of the detection machine provided by the present invention are arranged in parallel and spaced apart. The turning device is arranged between the feeding device and the conveying device. The height detection device and the vision detection device are arranged above the conveying device and are arranged in sequence along the conveying direction of the conveying device. The overall structure of the machine is compact and the layout is reasonable, effectively reducing the moving stroke between the devices, thereby improving the detection efficiency. And, the turning device can clamp the filter conveyed by the feeding device and rotate it by a certain angle, so that the end of the filter with PIN pins rotates to face upward, which is convenient for the height detection device and the vision detection device to detect the assembly height and assembly position of the PIN pins of the filter with PIN pins facing upward conveyed by the conveying device, thereby improving the detection efficiency and the accuracy of detection. The automation degree of this machine is high, and it can realize the automated flow operation of detecting the assembly of the PIN pins of the magnetic core in the filter. Description of the Drawings

[0015] Figure 1 is a three-dimensional structural schematic diagram of the filter of the present invention.

[0016] Figure 2 is a schematic diagram of the installation position of the PIN pins in the filter of the present invention.

[0017] Figure 3 is a three-dimensional structural schematic diagram of the detection machine of the present invention.

[0018] Figure 4 It is a schematic plan view of the detection machine of the present invention.

[0019] Figure 5 It is a schematic three-dimensional structure view of the steering device of the present invention.

[0020] Figure 6 It is a side view of the steering device of the present invention.

[0021] Figure 7 It is a schematic three-dimensional structure view of the conveying device of the present invention.

[0022] Figure 8 It is a schematic plan view of the conveying device of the present invention.

[0023] Figure 9 It is a schematic three-dimensional structure view of the height detection device of the present invention.

[0024] Figure 10 It is a schematic three-dimensional structure view of the vision detection device of the present invention. Detailed implementation manners

[0025] To describe in detail the content, structural features, achieved objectives and effects of the present invention, the following will be described in detail in conjunction with the implementation manners and with reference to the drawings.

[0026] First, refer to Figure 1 and Figure 2, the present invention relates to a filter 200, which includes a housing 201 and components such as a sealing ring, a magnetic core 202, and an end cap 203 assembled in the housing 201. Specifically, the housing 201 is cylindrical and generally in an "L" shape. The magnetic core 202 includes a bobbin 2021, a center core column installed on the bobbin 2021, a coil 2022 wound around the center core column, and two PIN pins 2023 installed in an installation groove 202a of the bobbin 2021. The two PIN pins 2023 are also connected to the coil 2022. Among them, the bobbin 2021 is generally in an "L" shape, and the installation groove 202a is provided at the short side 2024 of the bobbin 2021. When the magnetic core 202 is assembled in the housing 201, the long side 2025 of the bobbin 2021 of the magnetic core 202 is inserted into the housing 201 from the opening of the short side 2011 of the housing 201 towards the long side 2012 of the housing 201, so that the short side 2024 of the bobbin 2021 with the installation groove 202a is clamped at the outer wall of the short side 2011 of the housing 201, and the short side 2024 of the bobbin 2021 and the short side 2011 of the housing 201 are in an assembly position perpendicular to each other. It should be noted that the assembly of the PIN pins 2023 needs to ensure that the height difference between the tip of the PIN pin 2023 and the reference plane of the installation groove 202a is within the specified error range. In addition, the PIN pins 2023 need to be inserted vertically into the installation groove 202a, and the two PIN pins 2023 also need to be kept parallel to each other during assembly. Among them, in order to facilitate the distinction between the two PIN pins 2023 during assembly and detection, identification marks can also be set on the inner wall of the installation groove 202a, specifically as Figure 2 identified by the numbers 1 and 2 in

[0027] Refer to Figure 3 and Figure 4, the present invention discloses an inspection machine 100 for realizing an automated assembly line operation for detecting the assembly accuracy of the PIN pins 2023 of the magnetic core 202 in the above-mentioned filter 200. The inspection machine 100 disclosed in the preferred embodiment of the present invention includes a feeding device 10 and a conveying device 30 arranged in parallel and at intervals, a steering device 20 provided between the feeding device 10 and the conveying device 30, and a height detection device 40 and a vision detection device 50 arranged above the conveying device 30 and arranged in sequence along the conveying direction of the conveying device 30. The feeding device 10 is used to pick up and send the filter 200 to the steering device 20. The steering device 20 can clamp the filter 200 transferred by the feeding device 10 and rotate the clamped filter 200 by a certain angle so that the end of the filter 200 with the PIN pins 2023 faces upward. The conveying device 30 is used to convey the filter 200 with the PIN pins 2023 facing upward obtained from the steering device 20 so that it passes through the height detection device 40 and the vision detection device 50 in sequence. The height detection device 40 is used to detect the assembly height between the tip of the PIN pin 2023 of the passing filter 200 and the reference plane of the placement groove 202a, and the vision detection device 50 detects the assembly position of the PIN pin 2023 of the passing filter 200, that is, the perpendicularity of the assembly.

[0028] It should be noted that the sealing machine 100 of the present invention further includes a working platform 101, a machine shell (not shown in the figure), and a control system. The machine shell covers the outside of the feeding device 10, the steering device 20, the conveying device 30, the height detection device 40, and the vision detection device 50 installed on the working platform 10. The control system is electrically connected to the feeding device 10, the steering device 20, the conveying device 30, the height detection device 40, and the vision detection device 50 for controlling the coordinated actions between the devices. Among them, the control system is a conventional design, and its structure and control principle are well known in the art, so it will not be described in detail here.

[0029] Refer to Figure 3 and Figure 4, specifically, the feeding device 10 includes a bracket 11 erected on the working platform 101 along the longitudinal direction of the working platform 101, a feeding driving mechanism 12 installed on the bracket 11, and a feeding jaw 13 connected to the output end of the feeding driving mechanism 12. The feeding driving mechanism 12 can drive the feeding jaw 13 to linearly reciprocate along the Z-axis direction and the X-axis direction, so that the feeding jaw 13 can enter and exit the casing, and thus horizontally place the filter 200 obtained from the outside of the machine on the turning device 20 by linear movement. Specifically, the turning device 20 can drive the filter 200 to rotate 90°, so that the filter 200 rotates from a horizontal placement to a side-standing placement with the PIN pins 2023 facing up. At this time, the notch of the placement groove 202a faces up, which is convenient for the subsequent height detection device 40 and vision detection device 50 to complete the corresponding detection operations.

[0030] Among them, in order to improve efficiency, the number of the feeding jaws 13 can be multiple. The multiple feeding jaws 13 are connected to the output end of the feeding driving mechanism 12 in parallel and spaced apart, so that multiple filters 200 can be picked up and delivered at one time, thereby improving the feeding efficiency. Correspondingly, the turning device 20 and the conveying device 30 can perform corresponding turning operations and conveying operations on multiple filters 200 at one time. Specifically, as Figure 3 shown, the number of the feeding jaws 13 is 4.

[0031] Refer to Figure 4 , in the preferred embodiment of the present invention, the output end of the turning device 20, the feeding device 10, and the input end of the conveying device 30 are arranged in a straight line, so that the feeding device 10 and the conveying device 30 do not need to be aligned and adjusted when picking up and delivering the filter 200, and only need to perform a short-distance parallel movement to complete the corresponding picking up and delivering operations, thereby optimizing the structure, further improving the detection efficiency, and making the overall layout of the machine more compact, effectively reducing the volume of the whole machine.

[0032] Refer to Figure 5 and Figure 6 , the turning device 20 includes two gear-rack mechanisms 21 arranged oppositely. At least one of the two gear-rack mechanisms 21 can perform a linear movement closer to or farther from the other to clamp or release the filter located between the two gear-rack mechanisms 21. The two gear-rack mechanisms 21 can also act synchronously to drive the filter 200 clamped between them to rotate. Preferably, the two gear-rack mechanisms 21 can move towards each other or away from each other to clamp or release the filter 200 located between them.

[0033] Specifically, the rack and pinion mechanism 21 includes a mounting plate 211, a first linear actuator 212 disposed on the back surface of the mounting plate 211, a rack 213 connected to the output end of the first linear actuator 212, at least one pinion 214 meshing with the rack 213, and at least one positioning seat 215 rotatably disposed on the front surface of the mounting plate 21. The positioning seats 215 and the pinions 214 are connected in a one-to-one correspondence. Among them, the first linear actuator 212 can drive the connected rack 213 to linearly move along the longitudinal direction of the mounting plate 211, so that the pinions 214 meshing with the rack 213 rotate accordingly, thereby driving the positioning seats 215 to rotate. Then, the two positioning seats 215 in the two rack and pinion mechanisms 21 can cooperate to clamp or loosen the filter 200 placed between them, and the synchronous rotation of the two positioning seats 215 can also drive the filter 200 clamped between them to rotate, so as to rotate the filter 200 to a position where the PIN pins 2023 are facing upward for easy detection. Among them, in order to improve the detection efficiency of the whole machine, the number of the positioning seats 215 and the pinions 214 corresponds to a plurality. The plurality of pinions 214 can be arranged at intervals and equidistantly along the longitudinal direction of the rack 213, so that the movement of one rack 213 can drive the plurality of pinions 214 to rotate synchronously, simply and efficiently realizing the synchronous operation of turning and adjusting a plurality of filters 200 at one time.

[0034] Specifically, the steering device 20 further includes a base 22 and two second linear actuators 23 disposed on opposite sides of the base 22. The mounting plates 211 of the two rack and pinion mechanisms 21 are connected to the output ends of the two second linear actuators 23 in a one-to-one correspondence, and the two mounting plates 211 are arranged in parallel and spaced apart in a direction perpendicular to the base 22. Then, the two second linear actuators 23 can act synchronously to drive the two corresponding mounting plates 211 to move towards each other or away from each other, so that the two positioning seats 215 arranged oppositely on the two mounting plates 211 approach or move away from each other to clamp or loosen the filter 200 located between them.

[0035] Refer to Figure 3 and Figure 4 As shown in, the conveying device 30 includes a conveying line 31, a transfer mechanism 32 that shuttles between the conveying line 31 and the steering device 20, and a carrier 33 that conveys on the conveying line 31. The transfer mechanism 32 is used to pick up the filter 200 with the PIN pins 2023 facing upward on the steering device 20 and send it to the carrier 33. The carrier 33 is used to drive the filter 200 to convey on the conveying line 31. Among them, the carrier 33 is provided with a profiling groove corresponding to the shape of the outer contour of the filter 200, and the filter 200 can be clamped in the profiling groove. And, the number of profiling grooves on the carrier 33 can be multiple, so that multiple filters 200 can be transported each time, thereby improving the detection efficiency. Specifically, there are 4 profiling grooves on the carrier 33.

[0036] Specifically, the transfer mechanism 32 includes a bracket 321 installed on the working platform 101 along the transverse width direction of the working platform 101, a transfer driving assembly 322 installed on the bracket 321, and a transfer jaw 323 connected to the output end of the transfer driving assembly 322. The transfer driving assembly 322 can drive the transfer jaw 323 to linearly reciprocate along the Z-axis direction and the Y-axis direction, so that the transfer jaw 323 shuttles between the steering device 20 and the conveyor line 31 to pick up and deliver the filter 200 with the PIN pin 2023 facing upward on the steering device 20 to the carrier 33. Among them, the number of transfer jaws 323 can also be multiple, and the multiple transfer jaws 323 are connected to the output end of the transfer driving assembly 322 in parallel and at intervals, so that multiple filters 200 can be picked up and delivered at one time, thereby improving the transfer efficiency. Specifically, the number of transfer jaws 323 is 4.

[0037] Combined with Figure 3 、 Figure 4 、 Figure 7 And Figure 8 In a preferred embodiment of the present invention, in order to more accurately and effectively convey the carrier 33 for accurate detection, the conveyor line 31 includes a first conveyor line 311, a second conveyor line 312, and a third conveyor line 313 that are sequentially docked. The steering device 20 is located beside the first conveyor line 311, and the height detection device 40 and the vision detection device 50 are correspondingly located above the second conveyor line 312 and the third conveyor line 313. Among them, the conveying width of the first conveyor line 311, the second conveyor line 312, or / and the third conveyor line 313 is adjustable to convey carriers 33 of different sizes, thereby improving the adaptability of the machine. Among them, the structures and working principles of the first conveyor line 311, the second conveyor line 312, and the third conveyor line 313 can be substantially the same, so as to simplify the structure and facilitate the unified assembly of the whole machine.

[0038] Refer to Figure 7, the first conveyor line 311 includes two conveyor belts 314 arranged side by side at a certain interval along the transverse width direction of the working platform 101. The two conveyor belts 314 cooperate with each other to form a conveying path therebetween for conveying the carrier tray 33. Among them, the two conveyor belts 314 are endless conveyor belts, and the two are respectively rotatably installed on the opposite side plates 315, so as to cooperate with each other to horizontally support the edges on both sides of the carrier tray 33 from below to drive the carrier tray 33 to move along the longitudinal length direction of the working platform 101. Further, the first conveyor line 311 further includes two bases 316 arranged side by side at a certain interval along the transverse width direction of the working platform 101. Linear guide rails 317 are arranged on the two bases 316 along the transverse width direction of the working platform 101. The two side plates 315 are slidably arranged on the two bases 316 through the linear guide rails 317 in a one-to-one correspondence. Thus, by the opposite movement or the back-to-back movement of the two side plates 315 on the two bases 316, the adjustment of the interval between the two conveyor belts 314 is realized, so as to adjust the width of the conveying path formed by the two conveyor belts 314. Correspondingly, the second conveyor line 312 and the third conveyor line 313 are also respectively formed with their own conveying paths by the corresponding two conveyor belts 314, and the conveying paths of the first conveyor line 311, the second conveyor line 312 and the third conveyor line 313 are arranged in a straight line.

[0039] Combined Figure 7 and Figure 8 , in a preferred embodiment of the present invention, in order to prevent the filter 200 from moving in the carrier tray 33 during the detection process, the conveying device 30 is also provided with a positioning mechanism 34 at the second conveyor line 312 and the third conveyor line 313. The positioning mechanism 34 includes an upper limit member 341, a lower limit member 342, a left limit member 343 and a right limit member 344 arranged on the upper side, lower side, left side and right side of the conveyor line 31, so that the filter 200 can be limited from four directions of up, down, left and right. Among them, the left limit member 343 and the right limit member 344 are arranged in a one-to-one correspondence with the filter 200 carried on the carrier tray 33. The upper limit member 341 and the lower limit member 342 mainly limit the carrier tray 33 to limit the movement of the filter 200. Therefore, the number of the lower limit members 342 can be one and is in a flat shape, and the number of the upper limit members 341 can be two and is in a block shape.

[0040] Specifically, the left stopper 343 and the right stopper 344 can move toward or away from each other along the Y-axis direction under the drive of the linear drive 3431 and the linear drive 3441 connected to the two, so as to clamp the filter 200 between the two from the left and right sides to prevent the filter 200 from shaking left and right. The lower stopper 342 is located between the two conveyor belts 314 corresponding to the second conveyor line 312 and the third conveyor line 313. The lower stopper 342 can move back and forth along the Z-axis direction to approach or move away from the carrier 33 under the drive of the linear drive (not shown in the figure) connected to it, so as to support the carrier 200 from below and prevent the filter 200 in the carrier 33 from floating up and down along the Z-axis direction on the conveyor belt 314. Furthermore, the lower stopper 342 can also push the carrier 33 to make it separate from the conveyor belt 314 to complete the corresponding detection operation. After the detection is completed, the carrier 33 is driven to fall back to the conveyor belt 314 for continued transmission. The output end of the linear drive 3431 or the linear drive 3441 is also connected to two upper limit members 341, and the two upper limit members 341 are staggeredly arranged with the left limit member 343 or the right limit member 344 on the same side, so as to abut against the top side end of the carrier 33, so that the carrier 33 is restricted between the upper limit member 341 and the lower limit member 342, thereby preventing the filter 200 in the carrier 33 from moving in the Z-axis direction.

[0041] In a preferred embodiment of the present invention, the conveying device 30 also includes a lifting mechanism 35, which is arranged at the output end of the second conveying line 312 and the third conveying line 313, and includes a pushing plate 351 and a pushing driver 352 connected to the pushing plate 351. The pushing driver 352 is installed on the working platform 101 and is located between the two conveyor belts 314 corresponding to the second conveying line 312 and the third conveying line 313 respectively. The pushing driver 352 can drive the pushing plate 351 to reciprocate in a straight line along the Z-axis direction, thereby blocking or allowing the transmission of the carriers 33 on the two conveyor belts 314.

[0042] In a preferred embodiment of the present invention, the conveying device 30 further includes a return line 36, which is disposed below the conveying line 31 and is used to receive the empty carrier 33 and convey the carrier 33 to the conveying line 31, so as to realize the recycling of the carrier 33, thereby improving the detection efficiency, effectively utilizing the space, and further reducing the length of the whole machine. Specifically, the return line 36 can be disposed below the conveying line 31 in parallel with the conveying line 31 and in the opposite direction of the conveying direction, and the two can be connected by a lifting mechanism 37. It should be noted that, in the embodiments thereof, the empty carrier plate 31 can be placed at the input end of the return line 36 by a robot or manually at the output end of the third conveyor line 313 of the conveyor line 31. In this case, the conveying widths of the second conveyor line 312 and the third conveyor line 313 of the conveyor line 31 do not need to be adjusted, and a lifting mechanism 37 is only provided at the output end of the return line 36, that is, below the input end of the first conveyor line 311 of the conveyor line 31. At this time, with the cooperation of the adjustable conveying width of the first conveyor line 311 of the conveyor line 31, the lifting mechanism 37 can conveniently push the empty carrier plate 33 onto the two conveyor belts 314 of the first conveyor line 311, thereby further simplifying the structure.

[0043] Combination Figure 3 , Figure 7 and Figure 9 The height detection device 40 includes a test probe 41 and a probe moving mechanism 42 connected to the test probe 41. The probe moving mechanism 42 is used to drive the test probe 41 to move back and forth in a straight line along the Z-axis direction and the X-axis direction, so that the test probe 41 can be translated to the top of the corresponding filter 200 in the carrier 33, and can be vertically inserted into the filter 200 to detect and identify the installation height of the PIN needle 2023 in the filter, and feed back the identification information to the control system, so as to judge whether the height difference between the tip of the PIN needle 2023 and the reference plane of the mounting groove 202a is within the specified error range. Specifically, the test probe 41 is in the shape of a Chinese character "川", and includes two relatively short first pressing portions 411 and a relatively long second pressing portion 412. The two first pressing portions 411 are arranged in parallel, at the same height and spaced apart, and are used to abut against the tips of the two PIN needles 2023 one by one, and are relatively short. The second pressing portion 412 is located beside one of the first pressing portions 411, and is used to abut against the reference surface of the placement groove 202a, and is relatively long. The height difference between the tips of the second pressing portion 412 and the first pressing portion 411 corresponds to the height difference between the preset tips of the PIN needle 2023 and the reference surface of the placement groove 202a, so that by inserting the test probe 41 into the placement groove 202a, it is possible to quickly verify whether the assembly height of the two PIN needles 2023 meets the requirements.

[0044] Specifically, in this embodiment, the number of test probes 41 is two, and two spaced PIN pins 2023 in the filters 200 can be detected each time. Among them, the two test probes 41 can linearly move along the Z-axis direction under the drive of the probe moving mechanism 42 to detect the assembly height of the PIN pins 2023 in the first and third filters 200 arranged in sequence on the carrier 33, and then linearly move along the X-axis direction to the positions above the second and fourth filters 200 arranged in sequence on the carrier 33, and then move down to detect the assembly height of the PIN pins 2023 in the second and fourth filters 200. Thus, the detection of a total of 8 PIN pins 2023 in 4 filters 200 on one carrier 33 can be completed only twice.

[0045] Combined with Figure 3 , Figure 7 and Figure 10 , the vision detection device 50 includes an industrial camera 51 and a camera moving mechanism 52 connected to the industrial camera 51. The camera moving mechanism 52 is used to drive the industrial camera 52 to linearly reciprocate along the X-axis direction, that is, linearly move along the conveying direction of the conveying line 31, so as to detect and identify the installation positions of the PIN pins 2023 in multiple filters 200 arranged in the carrier 33 one by one, and feed back the identification information to the control system.

[0046] The working principle of the detection machine 100 of the present invention will be described below with reference to the attached Figures 1 to 10 figures:

[0047] First, after starting the device, under the instruction of the control system, the feeding device 10 transfers 4 filters 200 to between the two rack and pinion mechanisms 21 of the picking and placing device 20 at one time; the two rack and pinion mechanisms 21 move towards each other to clamp the 4 filters 200 and drive them to rotate synchronously by 90°, so that the 4 filters 200 are all rotated to the end with the PIN pins 2023 facing upwards; then, the transfer mechanism 32 of the transfer device 30 takes the 4 filters 200 with the PIN pins 2023 facing upwards from the steering device 20 and places them on the carrier 33, and then the carrier 33 drives the 4 filters 200 carried thereon to be transported to the height detection device 40 on the conveyor line 31; when the sensor at the height detection 40 senses that the carrier 33 is in place, it sends a signal to the control system, and under the instruction of the control system, the lifting mechanism 35 at the height detection device 40 acts to block the continuous transportation of the carrier 33; then, the positioning mechanism 34 acts to limit the movement of the filters 200 in the carrier 33 in the four directions of up, down, left, and right, and the two detection probes 41 of the height detection device 40 then move to detect the assembly height of the PIN pins 2023 in the 4 filters 200 in the carrier 33 in two times. After the height detection is completed, the positioning mechanism 34 and the lifting mechanism 35 at this station are reset accordingly, and the carrier 33 continues to be transported in the direction of the vision detection device 50; when the sensor at the vision detection device 50 senses that the carrier 33 is in place, it sends a signal to the control system, and under the instruction of the control system, the lifting mechanism 35 at the vision detection device 50 acts to block the continuous transportation of the carrier 33, and the industrial camera 51 of the vision detection device 50 then moves linearly to detect the assembly positions of the 4 filters 200; finally, after the position detection is completed, the positioning mechanism 34 and the lifting mechanism 35 at this station are reset accordingly, and the carrier 33 drives the filters 200 to be transported on the conveyor line 31 for discharging.

[0048] By continuously repeating the above operations, an automated assembly line operation for detecting the assembly accuracy of the PIN pins 2023 of the magnetic cores 202 in the filters 200 can be achieved.

[0049] Compared with the prior art, the feeding device 10 of the inspection machine 100 provided by the present invention and the conveying device 30 are arranged in parallel and spaced apart. The steering device 20 is arranged between the feeding device 10 and the conveying device 30. The height detection device 40 and the vision detection device 50 are arranged above the conveying device 30 and are arranged in sequence along the conveying direction of the conveying device 30. The overall structure of the machine is compact and the layout is reasonable, effectively reducing the moving stroke between the devices, thereby improving the detection efficiency. Moreover, the steering device 20 can clamp the filter 200 conveyed by the feeding device 10 and rotate it by a certain angle, so that the end of the filter 200 with the PIN pin 2023 rotates to face upward, which is convenient for the height detection device 40 and the vision detection device 50 to detect the assembly height and assembly position of the PIN pin 2023 of the filter 200 with the PIN pin 2023 facing upward conveyed by the conveying device 30, thereby improving the detection efficiency and detection accuracy. This machine has a high degree of automation and can realize the automated assembly line operation for detecting the assembly of the PIN pin 2023 of the magnetic core 202 in the filter 200.

[0050] The above-disclosed are only the preferred embodiments of the present invention. Of course, the scope of the rights of the present invention cannot be limited thereby. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. A detection machine for detecting the assembly accuracy of the PIN pins of the magnetic core in a filter, characterized in that, The inspection machine includes a feeding device and a conveying device arranged in parallel and at intervals, a steering device disposed between the feeding device and the conveying device, a height detection device and a vision detection device that are mounted above the conveying device and arranged in sequence along the conveying direction of the conveying device. The feeding device is used to transfer the filter to the steering device. The steering device can clamp the filter and rotate it by a certain angle so that the end of the filter with PIN pins faces upward. The conveying device is used to convey the filter with PIN pins facing upward at the steering device. The height detection device is used to detect the assembly height of the PIN pins of the conveyed filter. The vision detection device is used to detect the assembly position of the PIN pins of the conveyed filter. The steering device includes two gear-rack mechanisms arranged oppositely. At least one of the two gear-rack mechanisms can perform a linear motion of approaching or moving away from the other to clamp or release the filter located between the two gear-rack mechanisms. The two gear-rack mechanisms can also act synchronously to drive the filter clamped between them to rotate. The gear-rack mechanism includes a mounting plate, a first linear driver installed on the back of the mounting plate, a rack connected to the output end of the first linear driver, at least one gear meshing with the rack, and at least one positioning seat rotatably installed on the front of the mounting plate. The positioning seats are connected to the gears in a one-to-one correspondence, and multiple gears are arranged at intervals and equidistantly along the longitudinal length of the rack.

2. The inspection machine according to claim 1, wherein The output end of the steering device, the output end of the feeding device, and the input end of the conveying device are arranged in a straight line.

3. The inspection machine according to claim 1, characterized in that, The steering device further includes a base and two second linear drivers installed on opposite sides of the base. The two mounting plates are correspondingly connected to the output ends of the two second linear drivers, and the two mounting plates are arranged in parallel and spaced apart in a direction perpendicular to the base.

4. The inspection machine according to claim 1, wherein The conveying device includes a conveying line, a transfer mechanism that shuttles between the conveying line and the steering device, and a carrier plate that conveys on the conveying line. The transfer mechanism is used to pick up the filter with PIN pins facing upward on the steering device and send it to the carrier plate. The carrier plate is used to drive the filter to convey on the conveying line.

5. The inspection machine according to claim 4, wherein The conveying line includes a first conveyor line, a second conveyor line, and a third conveyor line that are sequentially docked. The steering device is located beside the first conveyor line. The height detection device and the vision detection device are correspondingly located above the second conveyor line and the third conveyor line. The conveying width of the first conveyor line, the second conveyor line, or / and the third conveyor line is adjustable.

6. The inspection machine according to claim 4, wherein, The conveying device further includes a positioning mechanism, a lifting mechanism and a return line. The positioning mechanism is arranged on the upper side, lower side, left side and right side of the conveyor line and is used to restrict the movement of the filter in the carrier. The lifting mechanism is arranged at the bottom of the conveyor line and can linearly move relative to the conveyor line along the Z-axis direction, and is used to block or allow the conveyance of the carrier on the conveyor line. The return line is arranged below the conveyor line and is used to receive the empty carrier and convey the carrier to the conveyor line.

7. The inspection machine according to claim 4, wherein The height detection device includes a test probe and a probe moving mechanism connected to the test probe. The probe moving mechanism is used to drive the test probe to linearly reciprocate along the Z-axis direction and the X-axis direction, so that the test probe can be translated above the filter in the carrier and can be vertically inserted into the filter to detect the installation height of the PIN pins in the filter.

8. The inspection machine according to claim 4, wherein The vision detection device includes an industrial camera and a camera moving mechanism connected to the industrial camera. The camera moving mechanism is used to drive the industrial camera to linearly reciprocate along the X-axis direction to detect the installation positions of the PIN pins in a plurality of filters arranged at intervals in the carrier one by one.

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