A fully automatic filter thread testing machine

Abstract

This invention relates to the field of filter thread inspection technology, specifically a fully automatic filter thread inspection machine. The machine includes a frame with a feeding device for loading filters to be inspected to the inspection station; a fixture assembly for positioning the filters at the inspection station; a feeding device, a support device, and a detection device for inspecting the damaged threads on the filters at the inspection station; a hollow platform device for supporting and driving the detection device, support device, and filters to be inspected in continuous circumferential movement; a discharge device for discharging qualified filters; a sorting device for sorting unqualified filters; and a control system. The feeding device, fixture assembly, feeding device, support device, detection device, hollow platform device, discharge device, sorting device, and control system constitute a fully automatic filter thread inspection machine production line, automating the inspection of the quality of the threads on filters.

Description

Technical Field

[0001] This invention relates to the field of filter thread inspection technology, and specifically to a fully automatic filter thread inspection machine. Background Technology

[0002] A filter is an accessory that uses filter paper to filter impurities or gases. It generally refers to automotive filters, which are engine components. Filters have threaded holes. During production, bumps, damage, welding impurities, and mixing can all cause mismatches in the threaded holes, resulting in defective filters in a batch. Therefore, before leaving the factory, filters need to be inspected and sorted to remove defective products. Traditional thread inspection is mostly done manually, which is time-consuming, labor-intensive, and inefficient, easily missing some defective products.

[0003] Chinese utility model patent CN216747344U discloses a filter thread detection device, including a frame, a conveying mechanism, and a filter. A detection camera is installed at the lower end of the frame, with a detection position above the camera. A sensor for detecting incoming material is installed in the middle of the frame in the material-feeding direction of the conveying mechanism. A control box is located at the upper end of the frame. This filter thread detection device uses the detection camera to photograph the filter for inspection. A PLC control device analyzes and compares the information from the photographed images to determine whether there are threads in the screw holes on the filter. This prior art can only detect whether there are threads in the screw holes of the filter by taking pictures with a detection camera, but it cannot detect whether the screw holes are damaged, causing a mismatch in the screw holes.

[0004] Therefore, it is necessary to improve existing technologies. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a fully automatic filter thread inspection machine that can automatically detect whether the screw holes of filters are qualified and can pick out unqualified products. It is easy to operate and has high work efficiency.

[0006] To achieve the above objectives, the technical solution applied in this invention is as follows:

[0007] A fully automatic filter thread inspection machine includes a frame with a feeding device for loading filters to be inspected to the inspection station; a fixture assembly for positioning the filters to be inspected at the inspection station; a feeding device, a support device, and a inspection device for inspecting whether the thread holes on the filters at the inspection station are damaged or mixed; a hollow platform device for supporting and driving the inspection device, the support device, and the filters to be inspected to make continuous circumferential movement; a discharge device for discharging the inspected filters; a sorting device for picking out unqualified filters; and a control system for controlling the operation of the inspection machine.

[0008] According to the above scheme, the frame is provided with an upper support platform and a lower support platform arranged at an interval between the upper and lower support platforms. A rotatable main turntable is provided between the upper support platform and the lower support platform. A main driver is provided on the lower support platform to drive the main turntable to rotate. The hollow platform device includes the main driver. A sensor is provided at the bottom of the upper support platform. A positioning pin corresponding to the detection station is provided on the outer edge of the main turntable. The sensor cooperates with the positioning pin to sense. A sensor is provided at an interval on the top of the upper support platform. A sensor is provided at an interval ...

[0009] According to the above scheme, the feeding device includes a feeding drive assembly, a feeding belt, a feeding guide plate, a buffer plate, and a feeding guide plate adjustment device. The buffer plate is installed on the upper support platform on the frame. The first end of the feeding belt corresponds to the previous process, and the second end of the feeding belt corresponds to the buffer plate. The feeding belt is driven by the feeding drive assembly. Two feeding guide plates are spaced apart above the feeding belt. The feeding guide plate adjustment device is used to adjust the position of the feeding guide plates.

[0010] According to the above scheme, the fixture assembly includes an outer fixture and an inner fixture. The inner fixture is rotatably disposed inside the outer fixture, and the outer fixture and the inner fixture are on the same horizontal plane. The outer fixture is installed on the upper support platform on the frame by a locking member, and the inner fixture is installed on the main turntable on the frame by a connecting rod. The first side of the outer fixture is provided with a feed port corresponding to the feeding device, and the second side of the outer fixture is provided with a discharge port corresponding to the discharge device. The outer edge of the inner fixture is provided with a plurality of arc-shaped grooves for positioning the filter.

[0011] According to the above scheme, multiple support devices are installed above the main turntable on the frame. The support device includes a follower bearing, a buffer guide assembly, a guide member, a return spring, a second mounting plate, a second slide rail, and a second slider. The second mounting plate is installed on the main turntable on the frame. The second slide rail is located on the second mounting plate. The second slider is slidably located on the second slide rail. The follower bearing is located at the first end of the second slider. The buffer guide assembly is located at the second end of the second slider. A buffer spring is provided inside the buffer guide assembly. The guide member is connected to the buffer guide assembly. The first end of the return spring is fixed to the second mounting plate, and the second end of the return spring is fixed to the second slider.

[0012] According to the above scheme, the feeding device includes a feeding drive assembly, an arc-shaped pressure plate, a mounting plate, a lead screw assembly, a slide rail, and a slider. The mounting plate is mounted on the frame and located above the support device. The slide rail is mounted on the mounting plate. The slider is slidably mounted on the slide rail. The arc-shaped pressure plate is fixed on the slider. The slider is threadedly connected to the lead screw assembly. The feeding drive assembly drives the lead screw assembly to rotate, causing the slider and the arc-shaped pressure plate to slide on the slide rail. The arc-shaped pressure plate is correspondingly arranged with the follower bearing of the support device.

[0013] According to the above scheme, multiple detection devices are evenly distributed and installed at the bottom of the main turntable on the frame. Each detection device includes a go gauge drive assembly, a go gauge head, a detection platform, a displacement spring, and a displacement sensor. The detection platform is movably installed on the outer edge of the main turntable on the frame via multiple guide rods, forming a detection station. The detection platform has a circular structure and is equipped with soft washers for mating with the filter. The first end of the go gauge head is installed at the output end of the go gauge drive assembly, which drives the go gauge head to rotate. The second end of the go gauge head passes through the main turntable and is located below the detection platform, corresponding to the screw hole of the filter on the detection platform. The displacement sensor is installed on the housing of the go gauge drive assembly. The displacement spring is sleeved on the guide rod between the detection platform and the main turntable, and the guide rod is connected to the displacement sensor.

[0014] According to the above scheme, the upper end of the go gauge head is provided with a threaded post and a guide slope for corresponding to the screw hole of the filter on the testing platform.

[0015] According to the above scheme, the discharge device includes a discharge drive assembly, a discharge belt, a discharge guide plate, a discharge guide plate adjustment device, a part picker drive assembly, a part picker, a shovel blade, an adjusting wheel, a rack seat, a slide rail, a mounting base, and a slider. The mounting base is mounted on the upper support platform on the frame and is located on the discharge port side of the fixture assembly. The part picker drive assembly is mounted on the mounting base, and the part picker is driven to rotate by the part picker drive assembly. Multiple magnetic suction devices are provided on the outer circumference of the part picker. The shovel blade is mounted on the mounting base and is located on the part picker away from the fixture assembly. On one side of the discharge port, the first end of the discharge belt corresponds to the part picker, and the second end of the discharge belt corresponds to the next process or the qualified product receiving channel. The discharge drive assembly drives the discharge belt to rotate. The discharge guide plate is located on the first side above the discharge belt. The discharge guide plate adjustment device is used to adjust the position of the discharge guide plate. The slide rail three is located on the mounting base, and the slider three is slidably located on the slide rail three. The adjusting wheel is fixed to the part picker. A gear is provided on one side of the adjusting wheel. The gear meshes with the rack seat. By rotating the adjusting wheel, the gear is controlled to move on the rack seat, thereby driving the part picker to move.

[0016] According to the above scheme, the picking device includes a defective product channel, a door opening driver, and a picking door. The defective product channel is connected to the discharge belt of the discharge device. The picking door is located on the second side above the discharge belt of the discharge device and between the defective product channel and the discharge belt of the discharge device. The picking door is opened and closed by the door opening driver.

[0017] Beneficial effects of this invention:

[0018] This invention employs a structural configuration that includes a feeding device, a fixture assembly, a feed device, a support device, a detection device, a hollow platform device, a discharge device, a sorting device, and a control system on the frame, forming a fully automatic filter thread inspection machine production line. This enables automated inspection of whether the screw holes on the filter are damaged or whether there is mixed material. Compared with manual inspection, it saves labor and costs and has higher inspection efficiency. Attached Figure Description

[0019] Figure 1 This is a front view of the overall structure of the present invention;

[0020] Figure 2 This is a rear view of the overall structure of the present invention;

[0021] Figure 3 This is an upper view of the assembly of the feeding device, support device and detection device of the present invention;

[0022] Figure 4 This is a lower view of the assembly of the feeding device, support device, and detection device of the present invention;

[0023] Figure 5 This is an assembly drawing of the fixture components of the present invention;

[0024] Figure 6 This is a structural diagram of the detection device of the present invention;

[0025] Figure 7 This is a structural diagram of the gauge head of the present invention;

[0026] Figure 8 This is a structural diagram of the feeding device of the present invention;

[0027] Figure 9 This is a structural diagram of the support device of the present invention;

[0028] Figure 10 This is a structural diagram of the part remover of the present invention.

[0029] In the diagram: 1. Frame; 11. Upper support platform; 12. Sensor 1; 13. Sensor 2; 14. Sensor 3; 15. Sensor 4; 16. Main turntable; 17. Main driver; 18. Lower support platform; 19. Positioning pin; 2. Feeding device; 21. Feeding drive assembly; 22. Feeding belt; 23. Feeding guide plate; 24. Buffer plate; 25. Feeding guide plate adjustment device; 3. Fixture assembly; 31. Outer fixture; 32. Inner fixture; 33. Locking element; 34. Arc groove; 35. Inlet; 36. Outlet; 37. Connecting rod; 4. Feeding device; 41. Feed drive assembly; 42. Arc pressure plate; 43. Mounting plate 1; 44. Screw assembly; 45. Slide rail 1; 46. Slider 1; 5. Support device; 51. Follower bearing; 52. Buffer guide assembly Components; 53. Guide component; 54. Return spring; 55. Mounting plate II; 56. Slide rail II; 57. Slider II; 6. Detection device; 61. Go gauge drive assembly; 62. Go gauge head; 63. Detection platform; 64. Soft washer; 65. Displacement spring; 66. Displacement sensor; 67. Threaded column; 68. Guide slope; 7. Discharge device; 70. Discharge drive assembly; 71. Discharge belt; 72. Discharge guide plate; 73. Discharge guide plate adjustment device; 74. Picker drive assembly; 75. Picker; 76. Shovel; 77. Adjusting wheel; 78. Rack seat; 79. Slide rail III; 710. Mounting base; 711. Slider III; 8. Picking device; 81. Defective product channel; 82. Door opening actuator; 83. Picking door; 9. Control system; 10. Filter. Detailed Implementation

[0030] The technical solution of the present invention will be described below with reference to the accompanying drawings and embodiments.

[0031] like Figures 1 to 10 As shown, the fully automatic filter thread inspection machine of the present invention includes a frame 1, on which a feeding device 2 is provided for feeding the filter 10 to be inspected to the inspection station; a fixture assembly 3 for positioning the filter 10 to be inspected at the inspection station; a feeding device 4, a support device 5, and an inspection device 6 for inspecting whether the thread holes on the filter 10 at the inspection station are damaged or mixed; a hollow platform device for supporting and driving the inspection device 6, the support device 5, and the filter 10 to be inspected to perform continuous circumferential movement; a discharge device 7 for discharging the inspected filter 10; a sorting device 8 for sorting out unqualified filters 10; and a control system 9 for controlling the operation of the inspection machine. The above constitutes the basic structure of the present invention.

[0032] The present invention adopts such a structural setting, by setting up a feeding device 2, a jig assembly 3, a feeding device 4, a support device 5, a detection device 6, a hollow platform device, a discharge device 7, a picking device 8 and a control system 9 on the frame, to form a fully automatic filter thread inspection machine production line, realizing the automated detection of whether the screw holes on the filter 10 are damaged or mixed. Compared with manual inspection, it saves labor and costs and has higher inspection efficiency. More specifically, the feeding device 2 is used to load the filter to be inspected 10 or the filter to be inspected 10 completed in the previous process onto the inspection station; the fixture assembly 3 is used to position the filter to be inspected 10 at the inspection station; the hollow platform device is used to support and drive the inspection device 6, the support device 5, and the filter to be inspected 10 to make continuous circumferential movement; the feeding device 4, the support device 5, and the inspection device 6 work together to inspect the screw holes on the filter 10 at the inspection station and feed the results back to the control system 9; when the inspection result is OK, the qualified filter 10 is discharged through the discharge device 7; when the inspection result is NG, the unqualified filter 10 is picked out through the picking device 8 to prevent the unqualified filter 10 from being mixed with the qualified filter 10 and entering the next process or the qualified product receiving channel.

[0033] In practical applications, the control system 9 is used to control the operation of the testing machine and receive feedback information from each component, and control the corresponding components to work according to the feedback information to achieve automated operation; the testing machine of the present invention has 8 testing stations, the main turntable 16 can rotate 5 times per minute, and can test 40 filters 10, which is highly efficient.

[0034] In this embodiment, the frame 1 is provided with an upper support platform 11 and a lower support platform 18 arranged vertically at intervals. A rotatable main turntable 16 is provided between the upper support platform 11 and the lower support platform 18. A main driver 17 for driving the main turntable 16 to rotate is provided on the lower support platform 18. The hollow platform device includes the main driver 17. A sensor 12 is provided at the bottom of the upper support platform 11. A positioning pin 19 corresponding to the detection station is provided on the outer edge of the main turntable 16. The sensor 12 cooperates with the positioning pin 19 to sense. A second sensor 13, a third sensor 14, and a fourth sensor 15 are provided at intervals on the top of the upper support platform 11. The main driver 17 drives the main turntable 16 to rotate, driving the filter 10 on the detection station to detect the water flowing until it is discharged.

[0035] In practical applications, when the main turntable 16 rotates, it drives the inner fixture 32 (which drives the filter 10), the support device 5, and the detection device 6 of the fixture assembly 3 to rotate synchronously. The sensor 12 at the bottom of the upper support platform 11 engages with the positioning pin 19 on the main turntable 16 to determine whether the detection station has reached the detection position when the main turntable 16 rotates. The sensor 213 detects whether the filter 10 is placed on the detection station (detection platform 63). If no filter 10 is detected, the feeding device 4 and the support device... 5. The detection device 6 does not work when it reaches the detection position at this detection station; wherein, sensor three 14 is used to detect whether the filter 10 has reached the unqualified position, and if it has reached the position and still does not receive a signal that the displacement value of the displacement spring 65 matches the set value, the filter 10 is determined to be unqualified, and is subsequently sorted out by the picking device 8 to prevent unqualified filters 10 from being mixed with qualified filters 10 and entering the next process or qualified product receiving channel; wherein, sensor four 15 is set on one side of the discharge port 36 and is used to detect whether the filter 10 is discharging normally.

[0036] In this embodiment, the feeding device 2 includes a feeding drive assembly 21, a feeding belt 22, a feeding guide plate 23, a buffer plate 24, and a feeding guide plate adjustment device 25. The buffer plate 24 is mounted on the upper support platform 11 on the frame 1. The first end of the feeding belt 22 corresponds to the previous process, and the second end of the feeding belt 22 corresponds to the buffer plate 24. The feeding belt 22 is driven by the feeding drive assembly 21. Two feeding guide plates 23 are spaced apart above the feeding belt 22. The feeding guide plate adjustment device 25 is used to adjust the position of the feeding guide plates 23. The feeding belt 22 is driven by the feeding drive assembly 21 to sequentially feed multiple filters 10 placed on the feeding belt 22 to the testing station.

[0037] In practical applications, the buffer plate 24 is located at the feed inlet 35 and is used to temporarily store the filters 10 that have been fed to the position. After the filters 10 are fed onto the buffer plate 24, the subsequent filters 10 will be circulated to the position of the buffer plate 24 in sequence under the action of the feed belt 22. Depending on the size of the filters 10, the gap between the two feed guide plates 23 can be adjusted by the feed guide plate adjustment device 25, making it more applicable.

[0038] In this embodiment, the fixture assembly 3 includes an outer fixture 31 and an inner fixture 32. The inner fixture 32 is rotatably disposed inside the outer fixture 31, and the outer fixture 31 and the inner fixture 32 are on the same horizontal plane. The outer fixture 31 is mounted on the upper support platform 11 on the frame 1 by a locking member 33. The inner fixture 32 is mounted on the main turntable 16 on the frame 1 by a connecting rod 37. The first side of the outer fixture 31 is provided with a feed port 35 corresponding to the feeding device 2, and the second side of the outer fixture 31 is provided with a discharge port 36 corresponding to the discharge device 7. The outer edge of the inner fixture 32 is provided with a plurality of arc-shaped grooves 34 for positioning the filter 10. The inner fixture 32 is driven to rotate by the main turntable 16. The arc groove 34 on the inner fixture 32 is used to hook the filter 10 located at the buffer plate 24, so that the filter 10 is driven to fall onto the detection platform 63 of the detection device 6 as the inner fixture 32 rotates, that is, to reach the detection station. In this way, for each filter 10 fed by the feeding belt 22, the arc groove 34 of the inner fixture 32 hooks the filter 10 and rotates it to a station, and then transmits the filter 10 to the detection position. The operation is cyclical and there is no need to wait. Moreover, the filters 10 at each station do not interfere with each other, resulting in high work efficiency.

[0039] In practical applications, the arc groove 34 is concentrically set with the gauge head 62 of the detection device 6. That is, when the filter 10 is located in the arc groove 34, the screw hole on the filter 10 corresponds to the gauge head 62 of the detection device 6, and there is no need to adjust the position, which facilitates the detection of the filter 10.

[0040] In this embodiment, multiple support devices 5 are installed above the main turntable 16 on the frame 1. Each support device 5 includes a follower bearing 51, a buffer guide assembly 52, a guide member 53, a return spring 54, a second mounting plate 55, a second slide rail 56, and a second slider 57. The second mounting plate 55 is installed on the main turntable 16 on the frame 1. The second slide rail 56 is located on the second mounting plate 55. The second slider 57 is slidably located on the second slide rail 56. The follower bearing 51 is located at the first end of the second slider 57. The buffer guide assembly 52 is located at the second end of the second slider 57. A buffer spring is provided inside the buffer guide assembly 52. ​​The guide member 53 is connected to the buffer guide assembly 52. ​​The first end of the return spring 54 is fixed to the second mounting plate 55, and the second end of the return spring 54 is fixed to the second slider 57. The support device 5 of this invention is driven by the feeding device 4. The feeding device 4 pushes the follower bearing 51 downward, causing the buffer guide assembly 52 and guide member 53 to press down. The guide member 53 contacts the filter 10 on the detection station (detection platform 63) located at the detection position until the screw hole on the filter 10 contacts the corresponding gauge head 62 of the detection device 6, and a downward thrust is applied to the filter 10 and the detection platform 63. The gauge head 62 is used to detect the screw hole. If the screw hole is not damaged (qualified), the gauge head 62 can be rotated. When the gauge head 62 is aligned with the screw hole, the filter 10 can continue to be pressed down. When the gauge head 62 does not align with the screw hole, the filter 10 is defective and cannot be pressed down further at the inspection position. This indicates that the screw hole is damaged or deformed, and the gauge head 62 cannot enter the screw hole. After the inspection is completed, the support device 5 rotates to the next station under the drive of the main turntable 16. The support device 5 separates from the feed device 4, loses its thrust, and resets under the action of the return spring 54, which in turn drives the guide 53 to separate from the filter 10.

[0041] It should be noted that the gauge head 62 of the testing device 6 can be replaced with different sizes of gauge heads 62 according to the screw hole size of the filter 10 to be tested in the same batch. That is, the gauge head 62 must be exactly matched with the screw hole of the filter 10 to be tested in the same batch to perform the testing work. This avoids the situation where the filter 10 to be tested cannot be pressed down and the gauge head 62 cannot enter the screw hole when the screw hole of the filter 10 to be tested is smaller than the gauge head 62, and also avoids the situation where the gauge head 62 passes through the screw hole when the screw hole of the filter 10 to be tested is larger than the gauge head 62.

[0042] In practical applications, the buffer guide assembly 52 is equipped with a buffer spring. When the filter 10 is defective and cannot be pressed down, the buffer spring causes the buffer guide assembly 52 to move upward, so that the guide 53 separates from the filter 10, protecting the buffer guide assembly 52 from damage. The guide 53 is made of soft rubber material and makes soft contact with the filter 10 to avoid damaging the filter 10.

[0043] In this embodiment, the feeding device 4 includes a feeding drive assembly 41, an arc-shaped pressure plate 42, a mounting plate 43, a lead screw assembly 44, a slide rail 45, and a slider 46. The mounting plate 43 is mounted on the frame 1 and located above the support device 5. The slide rail 45 is mounted on the mounting plate 43, and the slider 46 is slidably mounted on the slide rail 45. The arc-shaped pressure plate 42 is fixed to the slider 46, and the slider 46 is threadedly connected to the lead screw assembly 44. The feeding drive assembly 41 drives the lead screw assembly 44 to rotate, causing the slider 46 and the arc-shaped pressure plate 42 to slide on the slide rail 45. The arc-shaped pressure plate 42 is correspondingly arranged with the follower bearing 51 of the support device 5. When the feeding drive assembly 41 drives the arc-shaped pressure plate 42 to descend, it pushes the follower bearing 51 of the support device 5 downward. After the detection is completed, the feeding drive assembly 41 drives the arc-shaped pressure plate 42 to rise and reset.

[0044] In this embodiment, multiple detection devices 6 are evenly distributed and installed on the bottom of the main turntable 16 on the frame 1. Each detection device 6 includes a gauge drive assembly 61, a gauge head 62, a detection platform 63, a displacement spring 65, and a displacement sensor 66. The detection platform 63 is movably installed on the outer edge of the main turntable 16 on the frame 1 via multiple guide rods, forming a detection station. The detection platform 63 has a circular structure and is provided with a soft washer 64 for abutting and cooperating with the filter 10. The first end of the gauge head 62 is installed at the output end of the gauge drive assembly 61, which drives the gauge head 62 to rotate. The second end of the gauge head 62 passes through the main turntable 16 and is located below the detection platform 63, corresponding to the screw hole of the filter 10 on the detection platform 63. The displacement sensor 66 is installed on the housing of the gauge drive assembly 61. The displacement spring 65 is sleeved on the guide rod between the detection platform 63 and the main turntable 16, and the guide rod is connected to the displacement sensor 66. The go gauge head 62 is driven to rotate by the go gauge drive assembly 61, so that the go gauge head 62 can be screwed into and out of the screw hole on the filter 10. The displacement spring 65 is sleeved on the guide rod between the detection platform 63 and the main turntable 16, and the displacement value is preset. When the displacement value of the displacement spring 65 reaches the preset value, the filter 10 is marked as qualified (that is, the go gauge head 62 can rotate into the screw hole, and the filter 10 drives the detection platform 63 to press down synchronously to the preset value). When the displacement value of the displacement spring 65 is detected to be inconsistent with the preset value within a certain period of time, the filter 10 is marked as unqualified (including the screw hole is damaged or there is mixed assembly, the go gauge head 62 cannot be screwed into the screw hole, or there is a mismatch, the filter 10 is judged as unqualified, and the filter 10 and the detection platform 63 cannot continue to press down or press down excessively). The displacement sensor 66 can mark the unqualified filter 10 and feed the information back to the control system 9. When the unqualified filter 10 is being discharged, the control system 9 controls the picking device 8 to pick out the unqualified filter 10.

[0045] It should be noted that the gauge head 62 of the testing device 6 can be replaced with different sizes of gauge head 62 according to the screw hole size of the filter 10 to be tested in the same batch. That is, the gauge head 62 can be used to perform the test only if it matches the screw hole of the filter 10 to be tested in the same batch (the specific reasons have been explained in detail above and will not be repeated).

[0046] In practical applications, multiple detection devices 6 correspond one-to-one with multiple support devices 5; a soft washer 64 is provided on the detection platform 63 for abutting and cooperating with the filter 10. The soft washer 64 is made of rubber and is used to increase the friction with the filter 10, so that the gauge drive assembly 61 can drive the gauge head 62 to screw in and out of the screw hole on the filter 10.

[0047] It should be noted that when the buffer spring and displacement spring 65 in the buffer guide assembly 52 on the support device 5 are not in operation, they are both in a released (stretched) state, and the elastic force of the buffer spring is much greater than that of the displacement spring 65.

[0048] In this embodiment, the upper end of the gauge head 62 is provided with a threaded post 67 and a guide bevel 68 for corresponding to the threaded hole of the filter 10 on the testing platform 63. The threaded post 67 is used to screw into the threaded hole on the filter 10, and the guide bevel 68 is used to guide the gauge head 62 to the threaded hole on the filter 10.

[0049] In practical applications, the screw hole on the filter 10 is not completely concentric with the outer shell. When there is a deviation between the axis of the screw hole and the axis of the outer shell, the axis of the screw hole can still be found by the guide slope 68, and the gauge head 62 can be screwed into the screw hole.

[0050] In this embodiment, the discharge device 7 includes a discharge drive assembly 70, a discharge belt 71, a discharge guide plate 72, a discharge guide plate adjustment device 73, a part picker drive assembly 74, a part picker 75, a shovel blade 76, an adjusting wheel 77, a rack seat 78, a slide rail 79, a mounting base 710, and a slider 711. The mounting base 710 is mounted on the upper support platform 11 on the frame 1 and is located on the side of the discharge port 36 of the fixture assembly 3. The part picker drive assembly 74 is mounted on the mounting base 710. The part picker 75 is driven to rotate by the part picker drive assembly 74. The outer circumference of the part picker 75 is provided with multiple magnetic suction devices. The shovel blade 76 is mounted on the mounting base 710 and is located away from the part picker 75. On one side of the discharge port 36 of component 3, the first end of the discharge belt 71 corresponds to the part picker 75, and the second end of the discharge belt 71 corresponds to the next process or qualified product receiving channel. The discharge drive component 70 drives the discharge belt 71 to rotate. The discharge guide plate 72 is located on the first side above the discharge belt 71. The discharge guide plate adjustment device 73 is used to adjust the position of the discharge guide plate 72. The slide rail 3 79 is located on the mounting base 710. The slider 3 711 is slidably located on the slide rail 3 79. The adjusting wheel 77 is fixed to the part picker 75. A gear is provided on one side of the adjusting wheel 77. The gear meshes with the rack seat 78. By rotating the adjusting wheel 77, the gear is controlled to move on the rack seat 78, thereby driving the part picker 75 to move. When the filter 10 at the inspection station reaches the outlet 36, the picker 75 is used to pick up the filter 10 and rotates under the drive of the picker drive assembly 74. When the filter 10 contacts the shovel 76, the shovel 76 shovels the filter 10 off, and the filter 10 falls onto the discharge belt 71. The discharge drive assembly 70 drives the discharge belt 71 to rotate, and the filter 10 is discharged. The position between the picker 75 and the outlet 36 can be adjusted by rotating the adjusting wheel 77 to accommodate filters 10 of different sizes.

[0051] In practical applications, the picker drive assembly 74 includes a motor and a motor mount. The motor is mounted on the mounting base 710 via the motor mount. The picker 75 is driven to rotate by the motor, and the linear velocity of the picker 75 is greater than the linear velocity of the main turntable 16. The magnetic attraction device on the picker 75 is preferably a magnet. The shovel blade 76 is mounted on the mounting base 710 via the motor mount. The motor mount is fixed to the slider 711. When the adjusting wheel 77 is rotated, it drives the slider 711, the motor mount, the shovel blade 76, and the picker 75 to move synchronously.

[0052] In this embodiment, the picking device 8 includes a defective product channel 81, a door opening driver 82, and a picking door 83. The defective product channel 81 is connected to the discharge belt 71 of the discharge device 7. The picking door 83 is located on the second side above the discharge belt 71 of the discharge device 7 and between the defective product channel 81 and the discharge belt 71 of the discharge device 7. The picking door 83 is driven to open and close by the door opening driver 82. When the control system 9 receives the signal of the defective filter 10 detected by the sensor 14, the control system 9 controls the door opening driver 82 to open the picking door 83 after the defective filter 10 falls onto the discharge belt 71. When the picking door 83 is open, it blocks the qualified product discharge channel of the discharge belt 71. The filter 10 on the discharge belt 71 can only be guided into the defective product channel 81 through the picking door 83. That is, the marked defective filter 10 enters the defective product channel 81 through the picking door 83. When no defective signal is received, the picking door 83 is in the closed state.

[0053] In practical applications, the door opening actuator 82 is preferably a cylinder.

[0054] It should be noted that when the filter 10 reaches the discharge port 36, the filter 10 leaves the detection machine of the present invention through the discharge device 7. If the discharge device 7 does not take the filter 10 away, the filter 10 will rotate away from the discharge port 36 with the main turntable 16. The sensor 4 15 will detect the abnormal discharge of the filter 10 and issue an alarm. At this time, manual intervention is required to remove the filter 10.

[0055] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other modifications under the guidance of the present invention without departing from the spirit and scope of the claims. All of these modifications are within the scope of protection of the present invention.

Claims

1. A fully automatic filter thread testing machine, comprising a frame (1), characterized in that: The frame (1) is equipped with a feeding device (2) for feeding the filter (10) to be inspected to the inspection station; a fixture assembly (3) for positioning the filter (10) to be inspected at the inspection station; a feeding device (4), a support device (5), and a detection device (6) for detecting whether the screw holes on the filter (10) at the inspection station are damaged or mixed; a hollow platform device for supporting and driving the detection device (6), the support device (5), and the filter (10) to be inspected to make continuous circumferential movement; a discharge device (7) for discharging the inspected filter (10); a sorting device (8) for sorting out unqualified filters (10); and a control system (9) for controlling the operation of the inspection machine. Multiple detection devices (6) are evenly distributed and installed on the bottom of the main turntable (16) on the frame (1). Each detection device (6) includes a gauge drive assembly (61), a gauge head (62), a detection platform (63), a displacement spring (65), and a displacement sensor (66). The detection platform (63) is movably installed on the outer edge of the main turntable (16) on the frame (1) via multiple guide rods, forming a detection station. The detection platform (63) has a circular structure and is provided with a soft washer (64) for abutting against the filter (10). The gauge... The first end of the head (62) is installed at the output end of the gauge drive assembly (61), which drives the gauge head (62) to rotate. The second end of the gauge head (62) passes through the main turntable (16) and is located below the detection platform (63), corresponding to the screw hole of the filter (10) on the detection platform (63). The displacement sensor (66) is installed on the housing of the gauge drive assembly (61). The displacement spring (65) is sleeved on the guide rod between the detection platform (63) and the main turntable (16), and the guide rod is connected to the displacement sensor (66). The discharge device (7) includes a discharge drive assembly (70), a discharge belt (71), a discharge guide plate (72), a discharge guide plate adjustment device (73), a picker drive assembly (74), a picker (75), a shovel blade (76), an adjusting wheel (77), a rack seat (78), a slide rail (79), a mounting base (710), and a slider (711). The mounting base (710) is mounted on the upper support platform (11) on the frame (1) and is located on the side of the discharge port (36) of the fixture assembly (3). The picker drive assembly (74) is mounted on the mounting base (710). The picker (75) is driven to rotate by the picker drive assembly (74). The outer circle of the picker (75) is provided with multiple magnetic suction devices. The shovel blade (76) is mounted on the mounting base (710) and is located away from the fixture assembly (75). 3) On one side of the discharge port (36), the first end of the discharge belt (71) corresponds to the picker (75), and the second end of the discharge belt (71) corresponds to the next process or qualified product receiving channel. The discharge drive assembly (70) drives the discharge belt (71) to rotate. The discharge guide plate (72) is located on the first side above the discharge belt (71). The discharge guide plate adjustment device (73) is used to adjust the position of the discharge guide plate (72). The slide rail three (79) is located on the mounting base (710). The slider three (711) is slidably located on the slide rail three (79). The adjusting wheel (77) is fixed to the picker (75). A gear is provided on one side of the adjusting wheel (77). The gear meshes with the rack seat (78). By rotating the adjusting wheel (77), the gear is controlled to move on the rack seat (78), thereby driving the picker (75) to move.

2. The fully automatic filter thread inspection machine according to claim 1, characterized in that: The frame (1) is provided with an upper support platform (11) and a lower support platform (18) arranged at an interval between the upper and lower support platforms (11) and a rotatable main turntable (16) is provided between the upper support platform (11) and the lower support platform (18). The lower support platform (18) is provided with a main driver (17) for driving the main turntable (16) to rotate. The hollow platform device includes the main driver (17). The bottom of the upper support platform (11) is provided with a sensor (12). The outer edge of the main turntable (16) is provided with a positioning pin (19) corresponding to the detection station. The sensor (12) and the positioning pin (19) cooperate to sense. The top of the upper support platform (11) is provided with a sensor (2) (13), a sensor (3) (14) and a sensor (4) (15) at intervals.

3. The fully automatic filter thread inspection machine according to claim 1, characterized in that: The feeding device (2) includes a feeding drive assembly (21), a feeding belt (22), a feeding guide plate (23), a buffer plate (24), and a feeding guide plate adjustment device (25). The buffer plate (24) is mounted on the upper support platform (11) on the frame (1). The first end of the feeding belt (22) corresponds to the previous process, and the second end of the feeding belt (22) corresponds to the buffer plate (24). The feeding belt (22) is driven by the feeding drive assembly (21). Two feeding guide plates (23) are spaced apart above the feeding belt (22). The feeding guide plate adjustment device (25) is used to adjust the position of the feeding guide plate (23).

4. The fully automatic filter thread inspection machine according to claim 1, characterized in that: The fixture assembly (3) includes an outer fixture (31) and an inner fixture (32). The inner fixture (32) is rotatably disposed inside the outer fixture (31), and the outer fixture (31) and the inner fixture (32) are on the same horizontal plane. The outer fixture (31) is mounted on the upper support platform (11) on the frame (1) by a locking member (33). The inner fixture (32) is mounted on the main turntable (16) on the frame (1) by a connecting rod (37). The first side of the outer fixture (31) is provided with a feed port (35) corresponding to the feeding device (2). The second side of the outer fixture (31) is provided with a discharge port (36) corresponding to the discharge device (7). The outer edge of the inner fixture (32) is provided with a plurality of arc-shaped grooves (34) for positioning the filter (10).

5. The fully automatic filter thread inspection machine according to claim 1, characterized in that: Multiple support devices (5) are installed above the main turntable (16) on the frame (1). Each support device (5) includes a follower bearing (51), a buffer guide assembly (52), a guide (53), a return spring (54), a second mounting plate (55), a second slide rail (56), and a second slider (57). The second mounting plate (55) is installed on the main turntable (16) on the frame (1). The second slide rail (56) is located on the second mounting plate (55). The second slider (57) is slidably located on the second slide rail (56). The follower bearing (51) is located at the first end of the second slider (57). The buffer guide assembly (52) is located at the second end of the second slider (57). The buffer guide assembly (52) contains a buffer spring. The guide (53) is connected to the buffer guide assembly (52). The first end of the return spring (54) is fixed to the second mounting plate (55), and the second end of the return spring (54) is fixed to the second slider (57).

6. The fully automatic filter thread inspection machine according to claim 1, characterized in that: The feeding device (4) includes a feeding drive assembly (41), an arc-shaped pressure plate (42), a mounting plate (43), a lead screw assembly (44), a slide rail (45), and a slider (46). The mounting plate (43) is mounted on the frame (1) and located above the support device (5). The slide rail (45) is mounted on the mounting plate (43). The slider (46) is slidably mounted on the slide rail (45). The arc-shaped pressure plate (42) is fixed on the slider (46). The slider (46) is threadedly connected to the lead screw assembly (44). The feeding drive assembly (41) drives the lead screw assembly (44) to rotate, causing the slider (46) and the arc-shaped pressure plate (42) to slide on the slide rail (45). The arc-shaped pressure plate (42) is correspondingly arranged with the follower bearing (51) of the support device (5).

7. The fully automatic filter thread inspection machine according to claim 1, characterized in that: The upper end of the gauge head (62) is provided with a threaded post (67) and a guide slope (68) for corresponding to the threaded hole of the filter (10) on the test platform (63).

8. The fully automatic filter thread inspection machine according to claim 1, characterized in that: The picking device (8) includes a defective product channel (81), a door opening driver (82), and a picking door (83). The defective product channel (81) is connected to the discharge belt (71) of the discharge device (7). The picking door (83) is located on the second side above the discharge belt (71) of the discharge device (7) and between the defective product channel (81) and the discharge belt (71) of the discharge device (7). The picking door (83) is opened and closed by the door opening driver (82).

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