An automatic detection device and method suitable for X-shaped rings

Abstract

The present application relates to the technical field of X-shaped ring automatic detection, in particular to a kind of automatic detection equipment and detection method suitable for X-shaped ring, including base, mounting seat, rotating mechanism, visual detection mechanism and controller;Rotating mechanism is arranged on base, and the upper end of rotating mechanism is provided with mounting seat, and mounting seat is used to install and assemble the shell assembly equipped with X-shaped ring;Visual sensor is used to obtain the picture of X-shaped ring assembly, and whether X-shaped ring is judged to be assembled qualified;Controller is electrically connected with rotating mechanism, for controlling rotating mechanism to drive shell assembly on mounting seat to rotate;Controller is used to receive detection result, if detection result is qualified, then control drive motor works to drive mounting seat to rotate a certain angle, after completion, detection instruction is sent to visual sensor, until the detection result received is unqualified or after completing detection to each angle X-shaped ring assembly, stop sending detection instruction;Realize the function that whether each angle X-shaped ring assembly is qualified is automatically detected.

Description

Technical Field

[0001] This invention relates to the field of automatic X-ring detection technology, and more specifically, to an automatic detection device and method suitable for X-rings. Background Technology

[0002] X-rings are four-lip seals with a cross-sectional shape resembling an X. Also known as star-shaped seals, they can be used as moving seals at low speeds as well as for static sealing. X-rings have low friction and can better resist torsion. Compared to O-rings, X-rings form a lubricating cavity between the sealing lips, resulting in lower frictional and starting resistance. Therefore, if the sealing lip opening of an X-ring is too large, i.e., the flange is too large, the sealing effect will decrease.

[0003] Traditional methods for inspecting O-rings and X-rings rely entirely on manual inspection, resulting in low inspection efficiency and product qualification rates.

[0004] Therefore, Chinese patent CN208314227U discloses an O-ring detection device for a gearbox. The device uses a control unit to control a main motor to drive a turntable, rotating the gearbox mold base to the O-ring detection station. A pressing cylinder then presses down to stabilize the gearbox via a PU plate. The O-ring detection cylinder drives a pin sleeve to engage with the pin sleeve. Data from an O-ring displacement sensor electrically connected to a proximity switch confirms whether an O-ring is missing or excessive. However, this device can only determine the presence or absence of an O-ring. Since the X-ring is mounted on the pressure shell assembly, it increases the risk of flange flipping compared to the original O-ring design. Furthermore, this device can only detect the presence or absence of an O-ring or X-ring, and cannot detect whether the X-ring is properly assembled on the pressure shell assembly from various angles, i.e., whether the distance between the edge of the X-ring and the edge of the port exceeds the acceptable threshold. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides an automatic inspection device for X-rings that can automatically detect whether the assembly of X-rings at various angles is qualified.

[0006] An automatic inspection device for X-rings includes a base, a mounting base, a rotating mechanism, a vision inspection mechanism, and a controller;

[0007] The rotating mechanism is mounted on the base, and the upper end of the rotating mechanism is provided with the mounting seat, which is used to mount the pressure shell assembly equipped with the X-ring.

[0008] The visual inspection mechanism is fixedly connected to the base. The visual inspection mechanism includes a visual sensor electrically connected to the controller. The visual sensor is used to acquire the image of the X-ring assembly, determine whether the X-ring is assembled qualified based on the image, and transmit the inspection result to the controller.

[0009] The controller is electrically connected to the rotating mechanism and is used to control the rotation of the rotating mechanism to drive the pressure shell assembly on the mounting base to rotate.

[0010] Advantages and beneficial effects of the present invention: The mounting base is used to install the pressure shell assembly with X-rings, and the vision sensor is used to receive the detection command sent by the controller, acquire the image of the X-ring assembly, determine whether the X-ring is assembled qualifiedly based on the image, and transmit the detection result to the controller. The controller is used to receive the detection result. If the detection result is qualified, it controls the rotating mechanism to rotate a certain angle. After completion, it sends a detection command to the vision sensor until the received detection result is unqualified or the detection of the X-ring assembly at each angle is completed, and then stops sending the detection command. This realizes the function of automatically detecting whether the X-ring assembly at each angle is qualified.

[0011] Preferably, the rotating mechanism includes a driving mechanism, a driven mechanism, and a transmission mechanism:

[0012] The active mechanism includes a drive motor and a drive wheel. The drive motor is vertically placed and fixedly connected to the base. The output end of the drive motor is located below the base, and the drive wheel is fixedly connected to the output end. The drive motor is electrically connected to the controller.

[0013] The driven mechanism includes a transmission assembly and a driven wheel. The mounting base is fixed to the upper end of the transmission assembly, and the driven wheel is fixedly connected to the lower end of the transmission assembly and located below the base. The driven wheel drives the mounting base to rotate through the transmission assembly.

[0014] The transmission mechanism is used to connect the driving wheel and the driven wheel. This arrangement, with both the driving wheel and the driven wheel located below the base, prevents the transmission mechanism from causing injury to the operator during transmission.

[0015] Preferably, the base has a first through hole extending through its upper and lower ends, and the transmission assembly includes a positioning platform, a fixed seat, a first bearing, a second bearing, and a bushing.

[0016] The upper end of the positioning platform is fixedly connected to the mounting base, and the lower end is fixedly connected to the bushing.

[0017] The fixing base is provided with a second through hole that passes through its upper and lower ends. The fixing base is fixedly connected to the lower end of the base, and the central axis of the second through hole coincides with the central axis of the first through hole.

[0018] The outer ring of the first bearing is fixedly connected to the first through hole, and the outer ring of the second bearing is fixedly connected to the lower end of the fixed seat;

[0019] The upper part of the bushing is provided with a limiting step. The bushing passes through the inner ring of the first bearing, the inner ring of the second bearing, and the driven wheel sequentially from top to bottom, until the lower end of the limiting step abuts against the upper end of the inner ring of the first bearing. The inner rings of the first bearing, the inner rings of the second bearing, and the driven wheel are all fixedly connected to the outer wall of the bushing. This configuration allows the positioning table to be used for product positioning and correction, and the fixed seat to support the entire transmission assembly. When the driving wheel drives the driven wheel to rotate, the driven wheel, fixed to the bushing, will cause the bushing to rotate. The first and second bearings ensure smoother rotation of the bushing.

[0020] Preferably, the transmission mechanism is a synchronous belt, with both the driving pulley and the driven pulley being synchronous belt pulleys. A situ sensor is fixedly connected to the lower end of the base near the synchronous belt. The situ sensor is electrically connected to the controller and is used to detect whether the mounting base has returned to its origin. A metal block is provided on the outer wall of the synchronous belt. This configuration, compared to other transmission methods, offers high transmission efficiency, smooth transmission, vibration absorption, low noise, no lubrication required, and convenient maintenance. The situ sensor detects the metal block to determine whether the driven pulley has rotated one revolution and sends the result to the controller. The controller then stops sending detection commands to the vision sensor, ensuring that the vision sensor does not acquire duplicate images. Furthermore, after the detection is complete and the operator removes the pressure shell assembly, the controller controls the mounting base to return to its origin for easy installation the next time. This improves both detection efficiency and operator convenience, thus increasing installation efficiency.

[0021] Preferably, a tensioning pulley is fixed to the lower end of the base, and the tensioning pulley abuts against the inner sidewall of the timing belt for tensioning the timing belt. This configuration allows the tensioning pulley to stabilize the timing belt's transmission accuracy and improve its service life when the timing belt becomes loose due to prolonged use.

[0022] Preferably, the visual inspection mechanism further includes a vertically arranged support rod and an adjustment assembly fixedly connected to the visual sensor. The adjustment assembly includes a horizontally placed connecting rod, a first axis fixing seat, and a second axis fixing seat.

[0023] One side of the first shaft fixing seat is adjustablely connected to the support rod to adjust the vertical height of the vision sensor on the support rod, and the other side of the first shaft fixing seat is adjustablely connected to the connecting rod to adjust the rotation angle of the vision sensor around the axis of the support rod.

[0024] One side of the second axis fixing seat is adjustablely connected to the connecting rod, used to adjust the rotation angle of the vision sensor around the axis of the connecting rod, and the extension / retraction length along the axis of the connecting rod. The other side of the second axis fixing seat is fixedly connected to the vision sensor. This configuration allows for adjustable mounting height and rotation angle of the vision sensor around the support rod by adjusting the first axis fixing seat. Simultaneously, adjusting the second axis fixing seat allows for adjustable rotation angle and distance of the vision sensor from or near the pressure housing assembly along the axis of the connecting rod. This helps the vision sensor adapt to different X-ring assembly positions of the pressure housing assembly, improving the detection range of the vision sensor.

[0025] Preferably, the adjustment assembly further includes a C-shaped cover, which is fitted onto the vision sensor, with the opening of the C-shaped cover facing the second axis mounting bracket. This configuration allows the C-shaped cover of the second axis mounting bracket to prevent dust and protect the vision sensor, while the opening facing the second axis mounting bracket increases the ease of installation of the C-shaped cover.

[0026] Preferably, the automatic detection device further includes a vertically placed first support pipe, a vertically placed second support pipe, a horizontally placed first crossbeam, a horizontally placed second crossbeam, a vertically placed pressure sleeve, and a driving device. The first and second support pipes are respectively fixedly connected to both sides of the base. One side of the first crossbeam is movably connected to the first support pipe, and the other side is movably connected to the second support pipe. One side of the second crossbeam is fixedly connected to the top end of the first support pipe, and the other side is fixedly connected to the top end of the second support pipe. The driving device is fixedly connected to the second crossbeam, and the output end of the driving device is fixedly connected to the first crossbeam to drive the first crossbeam to move up and down on the mounting base. The driving device is electrically connected to the vision sensor. The pressure sleeve is fixed to the lower end of the first crossbeam and located directly above the mounting base. With this configuration, after the device is started, the driving device fixedly connected to the second crossbeam outputs power to the first crossbeam, causing the first crossbeam to move downwards until the pressure sleeve abuts against the upper end of the product and stops, thus achieving the automatic product fixing function.

[0027] Preferably, the mounting base is provided with several handles and limiting blocks. The limiting blocks are used for limiting the installation of the product, and the handles are used for removing and moving the mounting base. This arrangement allows the limiting blocks to facilitate quick positioning and installation of products from the same batch, and the handles to facilitate movement of the mounting base after removal.

[0028] A detection method for X-rings includes the following steps:

[0029] Step 1: The operator installs the X-ring assembled pressure shell assembly onto the mounting base;

[0030] Step 2: Start the controller, drive the device to work, pressurize the sleeve against the upper end of the pressure shell assembly, and the vision sensor detects the assembly status of the X-ring for the first time. If it is qualified, the first detection result is sent to the controller and proceed to step 3. If it is not qualified, proceed to step 7.

[0031] Step 3: The controller saves the first detection result and controls the drive motor to drive the active wheel to work, while driving the driven wheel to rotate 120°. The vision sensor detects the assembly status of the X-ring for the second time and sends the second detection result to the controller. At the same time, it proceeds to step 4. If it is not qualified, it proceeds to step 7.

[0032] Step 4: The controller saves the second detection result and controls the drive motor to drive the active wheel to work, while simultaneously driving the driven wheel to rotate 120° in the same direction. The vision sensor detects the assembly status of the X-ring for the third time and sends the third detection result to the controller. At the same time, proceed to step 5. If it is not qualified, proceed to step 7.

[0033] Step 5: The controller saves the third detection result, and then proceeds to step 6;

[0034] Step 6: The drive device is reset, the operator removes the pressure shell assembly, and then returns to Step 1;

[0035] Step 7: The vision sensor sends a non-compliant detection result, the controller receives the non-compliant detection result and alarms, reminding the operator to remove the pressure shell assembly through sound. After completion, return to step 6.

[0036] Preferably, the detection method further includes a detection process using a visual sensor, which includes the following steps:

[0037] Step A1: Obtain the image of the X-ring after assembly, take the corner line at the port of the pressure shell assembly as the baseline, calculate the distance from the baseline to the corner line of the X-ring, and set the qualified threshold according to the distance of each failed component.

[0038] Step A2: Set several green squares on the X-shaped circle in the image, and the green squares outline the corner lines of the X-shaped circle;

[0039] Step A3: Several blue squares are set at the port in the image, and the blue squares outline the corner lines of the port;

[0040] Step A4: Obtain the distance from the corner line of the X-ring to the baseline, and compare it with the qualified threshold to determine whether the X-ring is qualified.

[0041] The advantages and beneficial effects of the method of the present invention are as follows: The vision sensor acquires the assembly image of the X-ring and detects the image to determine whether the distance from the corner line of the X-ring to the baseline is within the qualified threshold. If the distance exceeds the qualified threshold, it is determined to be unqualified; if the distance is within the qualified threshold, it is qualified. The controller acquires the detection result of the vision sensor. If it is qualified, it controls the drive wheel to rotate, thereby driving the driven wheel to rotate, and performs 360° detection on the assembled X-ring, realizing the detection of each angle after the X-ring is assembled. Attached Figure Description

[0042] Figure 1 This is an isometric schematic diagram of the automatic detection equipment of the present invention;

[0043] Figure 2 This is an isometric schematic diagram of the automatic detection equipment of the present invention from another perspective;

[0044] Figure 3 This is a cross-sectional schematic diagram of the driven mechanism of the present invention;

[0045] Figure 4 This is a flowchart of the detection method of the present invention;

[0046] Figure 5 This describes the detection process of the visual sensor of the present invention;

[0047] Figure 6 This is the detection image of the visual sensor of the present invention.

[0048] 1. Base; 2. Mounting seat; 3. Active mechanism; 4. Rotating mechanism; 5. In-situ sensor; 6. Tensioning wheel; 7. Vision sensor; 8. Adjustment assembly; 9. Support rod; 10. First support tube; 11. Second support tube; 12. First crossbeam; 13. Second crossbeam; 14. Drive device; 15. Pressure sleeve; 101. First through hole; 301. Drive motor; 302. Output end; 303. Drive wheel; 401. Positioning platform; 402. Fixed seat; 403. First bearing; 404. Second bearing; 405. Driven wheel; 406. Bushing; 4021. Second through hole; 4061. Limiting step; 801. First shaft fixed seat; 802. Second shaft fixed seat; 803. Connecting rod; 804. C-shaped cover; B1. Edge line at the port; B2. Edge line of the X-ring; B3. Blue square; B4. Green square. Detailed Implementation

[0049] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0050] Combination Figure 1 and Figure 2 As shown, the present invention provides an automatic inspection device suitable for X-rings, including a base 1, a mounting base 2, a rotating mechanism 4, a vision inspection mechanism, and a controller;

[0051] The rotating mechanism 4 is mounted on the base 1, and the upper end of the rotating mechanism 4 is provided with a mounting seat 2. The mounting seat 2 is used to mount the pressure shell assembly equipped with the X-ring.

[0052] The visual inspection mechanism is fixedly connected to the base 1. The visual inspection mechanism includes a visual sensor 7 that is electrically connected to the controller. The visual sensor 7 is used to acquire the image of the X-ring assembly, determine whether the X-ring is assembled qualified, and transmit the inspection result to the controller.

[0053] The controller is electrically connected to the rotating mechanism 4 and is used to control the rotation of the rotating mechanism 4 so as to drive the pressure shell assembly on the mounting base 2 to rotate.

[0054] Mounting base 2 is used to install the pressure shell assembly with X-rings. Vision sensor 7 is used to receive detection commands sent by the controller, acquire the image of the X-ring assembly, determine whether the X-ring is assembled correctly, and transmit the detection results to the controller. The controller receives the detection results. If the detection results are correct, it controls the rotating mechanism 4 to rotate a certain angle. After completion, it sends detection commands to vision sensor 7 until the received detection results are incorrect or the detection of X-ring assembly at each angle is completed. This realizes the function of automatically detecting whether the X-ring assembly at each angle is correct.

[0055] In a preferred embodiment of the present invention, the rotating mechanism 4 includes a driving mechanism 3, a driven mechanism, and a transmission mechanism:

[0056] The active mechanism 3 includes a drive motor 301 and an active wheel 303. The drive motor 301 is placed vertically and fixedly connected to the base 1. The output end 302 of the drive motor 301 is located below the base 1, and the active wheel 303 is fixedly connected to the output end 302. The drive motor 301 is electrically connected to the controller.

[0057] The driven mechanism includes a transmission assembly and a driven wheel 405. The mounting base 2 is fixed to the upper end of the transmission assembly, and the driven wheel 405 is fixedly connected to the lower end of the transmission assembly and located below the base 1. The driven wheel 405 drives the mounting base 2 to rotate through the transmission assembly.

[0058] The transmission mechanism is used to connect the driving wheel 303 and the driven wheel 405.

[0059] Specifically, the driving wheel 303 and the driven wheel 405 are both located below the base 1 to prevent the transmission mechanisms from causing injury to the operator during transmission.

[0060] Combination Figure 3 As shown, in a preferred embodiment of the present invention, the base 1 is provided with a first through hole 101 extending through its upper and lower ends, the driven wheel is annular, and the transmission assembly includes a positioning platform 401, a fixed base 402, a first bearing 403, a second bearing 404, and a bushing 406.

[0061] The upper end of the positioning table 401 is fixedly connected to the mounting base 2, and the lower end is fixedly connected to the bushing 406;

[0062] The fixed base 402 is provided with a second through hole 4021 that passes through its upper and lower ends. The fixed base 402 is fixedly connected to the lower end of the base 1, and the central axis of the second through hole 4021 coincides with the central axis of the first through hole 101.

[0063] The outer ring of the first bearing 403 is fixedly connected to the first through hole 101, and the outer ring of the second bearing 404 is fixedly connected to the lower end of the fixed seat 402.

[0064] The upper part of the bushing 406 is provided with a limiting step 4061. The bushing 406 passes through the inner ring of the first bearing 403, the inner ring of the second bearing 404 and the driven wheel 405 from top to bottom, until the lower end of the limiting step 4061 abuts against the upper end of the inner ring of the first bearing 403. The inner ring of the first bearing 403, the inner ring of the second bearing 404 and the driven wheel 405 are all fixedly connected to the outer wall of the bushing 406.

[0065] Specifically, the positioning table 401 is used for product positioning and correction, and the fixed seat 402 is used for supporting the entire transmission assembly. When the driving wheel 303 drives the driven wheel 405 to rotate, since the driven wheel 405 is fixed on the bushing 406, it will drive the bushing 406 to rotate. The first bearing 403 and the second bearing 404 will make the rotation of the bushing 406 smoother.

[0066] In a preferred embodiment of the present invention, the transmission mechanism is a synchronous belt, the driving wheel 303 and the driven wheel 405 are both synchronous belt pulleys, and an in-situ sensor 5 is fixedly connected to the lower end of the base 1 near the synchronous belt. The in-situ sensor 5 is electrically connected to the controller and is used to detect whether the mounting base 2 has returned to the origin. A metal block is provided on the outer side wall of the synchronous belt.

[0067] Specifically, compared with other transmission methods, synchronous belt drives have high transmission efficiency, smooth transmission, can absorb vibration, low noise, do not require lubrication, and are easy to maintain. The in-situ sensor 5 determines whether the driven wheel 405 has rotated one revolution by detecting the metal block and sends the result to the controller. The controller stops sending detection commands to the vision sensor 7 to ensure that the vision sensor 7 does not acquire duplicate images. At the same time, after the detection is completed and the operator removes the pressure shell assembly, the controller controls the mounting base 2 to return to the origin to facilitate the next installation. This improves detection efficiency and facilitates the operator's installation, thus improving installation efficiency.

[0068] In a preferred embodiment of the present invention, a tensioning wheel 6 is fixed at the lower end of the base 1, and the tensioning wheel 6 abuts against the inner sidewall of the timing belt for tensioning the timing belt.

[0069] Specifically, when the timing belt becomes loose due to prolonged use, the tensioner 6 can be used to stabilize the timing belt drive accuracy and extend its service life.

[0070] In a preferred embodiment of the present invention, the visual inspection mechanism further includes a vertically arranged support rod 9 and an adjustment assembly 8 fixedly connected to the visual sensor 7. The adjustment assembly 8 includes a horizontally placed connecting rod 803, a first axis fixing seat 801, and a second axis fixing seat 802.

[0071] One side of the first axis fixing seat 801 is adjustablely connected to the support rod 9 to adjust the vertical height of the vision sensor 7 on the support rod 9. The other side of the first axis fixing seat 801 is adjustablely connected to the connecting rod 803 to adjust the rotation angle of the vision sensor 7 around the axis of the support rod 9.

[0072] One side of the second axis fixing seat 802 is adjustablely connected to the connecting rod 803 to adjust the flip angle of the vision sensor 7 around the axis of the connecting rod 803, as well as the extension length along the axis of the connecting rod 803. The other side of the second axis fixing seat 802 is fixedly connected to the vision sensor 7.

[0073] Specifically, by adjusting the first axis fixing seat 801, the mounting height of the vision sensor 7 and its rotation angle around the support rod 9 are adjustable. At the same time, by adjusting the second axis fixing seat 802, the flip angle of the vision sensor 7 around the axis of the connecting rod 803 and its distance from or near the pressure shell assembly along the axis of the connecting rod 803 are adjustable. This helps the vision sensor 7 adapt to the assembly position of the X-ring of different pressure shell assemblies and improves the detection range of the vision sensor 7. The first axis fixing seat 801 can be a double-hole vertical cross-shaped connector, and the second axis fixing seat 802 is a linear optical axis vertical fixing seat.

[0074] In a preferred embodiment of the present invention, the adjustment component 8 further includes a C-shaped cover 804, which is sleeved on the vision sensor 7, and the opening of the C-shaped cover 804 faces the second axis fixing seat 802.

[0075] Specifically, the C-shaped cover 804 of the second axis retainer is used to prevent dust and protect the vision sensor 7, while the opening facing the second axis retainer 802 can increase the ease of installation of the C-shaped cover 804.

[0076] In a preferred embodiment of the present invention, the automatic detection device further includes a vertically placed first support tube 10, a vertically placed second support tube 11, a horizontally placed first crossbeam 12, a horizontally placed second crossbeam 13, a vertically placed pressure sleeve 15, and a driving device 14. The first support tube 10 and the second support tube 11 are respectively fixedly connected to the two sides of the base 1. One side of the first crossbeam 12 is movably connected to the first support tube 10, and the other side is movably connected to the second support tube 11. One side of the second crossbeam 13 is fixedly connected to the top end of the first support tube 10, and the other side is fixedly connected to the top end of the second support tube 11. The driving device 14 is fixedly connected to the second crossbeam 13. The output end 302 of the driving device 14 is fixedly connected to the first crossbeam 12 to drive the first crossbeam 12 to move up and down on the mounting base 2. The driving device 14 is electrically connected to the vision sensor 7. The pressure sleeve 15 is fixed to the lower end of the first crossbeam 12 and is located directly above the mounting base 2.

[0077] Specifically, after the equipment is started, the drive device 14, which is fixedly connected to the second crossbeam 13, outputs to the first crossbeam 12, causing the first crossbeam 12 to move downward until the pressure sleeve 15 abuts against the upper end of the product and stops, thereby realizing the automatic fixing function of the product.

[0078] In a preferred embodiment of the present invention, the mounting base 2 is provided with a plurality of handles and limiting blocks. The limiting blocks are used for limiting the installation of the product, and the handles are used for removing and moving the mounting base 2.

[0079] Specifically, the limit block facilitates quick positioning and installation of products in the same batch, and the handle facilitates movement after the mounting base 2 is removed.

[0080] Combination Figure 4 As shown, a detection method for X-rings, applied to the above-mentioned automatic detection equipment, includes the following steps:

[0081] Step 1: The operator installs the X-ring assembled pressure shell assembly onto the mounting base 2;

[0082] Step 2: Start the controller, drive device 14 works, pressure sleeve 15 abuts against the upper end of the pressure shell assembly, vision sensor 7 detects the X-ring assembly status for the first time. If it is qualified, the first detection result is sent to the controller and proceeds to step 3. If it is not qualified, proceed to step 7.

[0083] Step 3: The controller saves the first detection result and controls the drive motor 301 to drive the active wheel 303 to work, while driving the driven wheel 405 to rotate 120°. The vision sensor 7 detects the X-ring assembly status for the second time and sends the second detection result to the controller. At the same time, it proceeds to step 4. If it is not qualified, it proceeds to step 7.

[0084] Step 4: The controller saves the second detection result and controls the drive motor 301 to drive the active wheel 303 to work, while driving the driven wheel 405 to rotate 120° in the same direction. The vision sensor 7 detects the X-ring assembly status for the third time and sends the third detection result to the controller. At the same time, it proceeds to step 5. If it is not qualified, it proceeds to step 7.

[0085] Step 5: The controller saves the third detection result, and then proceeds to Step 6;

[0086] Step 6: Drive unit 14 is reset, the operator removes the pressure shell assembly, and then returns to step 1;

[0087] Step 7: The vision sensor 7 sends a non-compliant detection result. The controller receives the non-compliant detection result and alarms, reminding the operator to remove the pressure shell assembly via sound. After completion, return to step 6.

[0088] Combination Figure 5 and Figure 6 As shown, in a preferred embodiment of the method of the present invention, the detection method further includes a detection process of the visual sensor 7, which includes the following steps:

[0089] Step A1: Obtain the image after the X-ring is assembled, take the corner line B1 at the port of the pressure shell assembly as the baseline, calculate the distance from the baseline to the corner line B2 of the X-ring, and set the qualified threshold according to the distance of each failed part.

[0090] Step A2: Set several green squares B4 on the X-shaped circle in the picture, and use the green squares B4 to select the corner lines B2 of the X-shaped circle;

[0091] Step A3: Set several blue squares B3 at the port in the picture, and use the blue squares B3 to select the corner line B1 at the port;

[0092] Step A4: Obtain the distance from the corner line B2 of the X-ring to the baseline, and compare it with the qualified threshold to determine whether the X-ring is qualified.

[0093] The vision sensor 7 acquires the assembly image of the X-ring and detects the image to determine whether the distance from the corner line B2 of the X-ring to the baseline is within the acceptable threshold. If the distance exceeds the acceptable threshold, it is considered unacceptable; if the distance is within the acceptable threshold, it is considered acceptable. The controller acquires the detection result of the vision sensor 7. If it is acceptable, it controls the drive wheel 303 to rotate, thereby driving the driven wheel 405 to rotate, and performs 360° detection on the assembled X-ring to realize the detection of each angle after the X-ring is assembled.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for detecting a X-ring, characterized by, The detection method is applied to an automatic detection device, which includes a base (1), a mounting base (2), a rotating mechanism (4), a vision inspection mechanism, and a controller. The rotating mechanism (4) is disposed on the base (1), and the upper end of the rotating mechanism (4) is provided with the mounting seat (2). The mounting seat (2) is used to install the pressure shell assembly equipped with the X-ring. The visual inspection mechanism is fixedly connected to the base (1). The visual inspection mechanism includes a visual sensor (7) electrically connected to the controller. The visual sensor (7) is used to acquire the image of the X-ring assembly, and to determine whether the X-ring is assembled qualified according to the image, and transmit the inspection result to the controller. The controller is electrically connected to the rotating mechanism (4) and is used to control the rotation of the rotating mechanism (4) to drive the pressure shell assembly on the mounting base (2) to rotate. The detection method includes the following steps: Step 1: The operator installs the X-ring assembled pressure shell assembly onto the mounting base (2); Step 2: Start the controller, drive device (14) works, pressurizing sleeve (15) abuts against the upper end of the pressure shell assembly, vision sensor (7) detects the X-ring assembly status for the first time. If qualified, the first detection result is sent to the controller and proceeds to step 3. If not qualified, proceed to step 7. Step 3: The controller saves the first detection result and controls the drive motor (301) to drive the active wheel (303) to work, while driving the driven wheel (405) to rotate 120°. The vision sensor (7) detects the assembly status of the X-ring for the second time and sends the second detection result to the controller. At the same time, it enters step 4. If it is not qualified, it enters step 7. Step 4: The controller saves the second detection result and controls the drive motor (301) to drive the active wheel (303) to work, while driving the driven wheel (405) to rotate 120° in the same direction. The vision sensor (7) detects the X-ring assembly status for the third time and sends the third detection result to the controller. At the same time, it proceeds to step 5. If it is not qualified, it proceeds to step 7. Step 5: The controller saves the third detection result, and then proceeds to step 6; Step 6: The drive device (14) is reset, the operator removes the pressure shell assembly, and returns to step 1 after completion; Step 7: The vision sensor (7) sends a non-compliance detection result, the controller receives the non-compliance detection result and alarms, reminding the operator to remove the pressure shell assembly through sound, and then returns to step 6 after completion; The detection process of the visual sensor (7) includes the following steps: Step A1: Obtain the image after the X-ring is assembled, take the corner line (B1) at the port of the pressure shell assembly as the baseline, calculate the distance from the baseline to the corner line (B2) of the X-ring, and set the qualified threshold according to the distance of each failed component; Step A2: Set several green squares (B4) on the X-shaped circle in the picture, and the green squares (B4) outline the corner line (B2) of the X-shaped circle; Step A3: Several blue squares (B3) are set at the port in the image, and the blue squares (B3) outline the corner line (B1) at the port; Step A4: Obtain the distance from the corner line (B2) of the X-ring to the baseline, and compare it with the qualified threshold to determine whether the X-ring is qualified.

2. The method for detecting X-shaped loops according to claim 1, wherein The rotating mechanism (4) includes a driving mechanism (3), a driven mechanism, and a transmission mechanism: The active mechanism (3) includes a drive motor (301) and an active wheel (303). The drive motor (301) is vertically placed and fixedly connected to the base (1). The output end (302) of the drive motor (301) is located below the base (1), and the active wheel (303) is fixedly connected to the output end (302). The drive motor (301) is electrically connected to the controller. The driven mechanism includes a transmission assembly and a driven wheel (405). The mounting base (2) is fixed to the upper end of the transmission assembly, and the driven wheel (405) is fixedly connected to the lower end of the transmission assembly and located below the base (1). The driven wheel (405) drives the mounting base (2) to rotate through the transmission assembly. The transmission mechanism is used to connect the driving wheel (303) and the driven wheel (405).

3. The method for detecting X-shaped loops according to claim 2, wherein The base (1) is provided with a first through hole (101) passing through its upper and lower ends. The transmission assembly includes a positioning platform (401), a fixed base (402), a first bearing (403), a second bearing (404), and a bushing (406). The upper end of the positioning platform (401) is fixedly connected to the mounting base (2), and the lower end is fixedly connected to the bushing (406); The fixing base (402) is provided with a second through hole (4021) that passes through its upper and lower ends. The fixing base (402) is fixedly connected to the lower end of the base (1), and the central axis of the second through hole (4021) coincides with the central axis of the first through hole (101). The outer ring of the first bearing (403) is fixedly connected to the first through hole (101), and the outer ring of the second bearing (404) is fixedly connected to the lower end of the fixed seat (402); The upper part of the bushing (406) is provided with a limiting step (4061). The bushing (406) passes through the inner ring of the first bearing (403), the inner ring of the second bearing (404), and the driven wheel (405) from top to bottom until the lower end of the limiting step (4061) abuts against the upper end of the inner ring of the first bearing (403). The inner ring of the first bearing (403), the inner ring of the second bearing (404), and the driven wheel (405) are all fixedly connected to the outer wall of the bushing (406).

4. The method for detecting an X-ring according to claim 2, wherein The transmission mechanism is a synchronous belt. The driving wheel (303) and the driven wheel (405) are both synchronous belt pulleys. The lower end of the base (1) is fixedly connected to the synchronous belt with an in-situ sensor (5). The in-situ sensor (5) is electrically connected to the controller and is used to detect whether the mounting base (2) has returned to the origin. A metal block is provided on the outer side wall of the synchronous belt.

5. The method for detecting X-shaped loops according to claim 4, wherein The lower end of the base (1) is fixed with a tensioning wheel (6), and the tensioning wheel (6) abuts against the side wall of the synchronous belt for tensioning the synchronous belt.

6. The method for detecting X-shaped loops according to claim 1, wherein The visual inspection mechanism further includes a vertically arranged support rod (9) and an adjustment assembly (8) fixedly connected to the visual sensor (7). The adjustment assembly (8) includes a horizontally placed connecting rod (803), a first axis fixing seat (801), and a second axis fixing seat (802). One side of the first shaft fixing seat (801) is adjustablely connected to the support rod (9) to adjust the vertical height of the vision sensor (7) on the support rod (9), and the other side of the first shaft fixing seat (801) is adjustablely connected to the connecting rod (803) to adjust the rotation angle of the vision sensor (7) around the axis of the support rod (9). One side of the second shaft fixing seat (802) is adjustablely connected to the connecting rod (803) for the rotation angle of the vision sensor around the axis of the connecting rod (803), and the other side of the second shaft fixing seat (802) is fixedly connected to the vision sensor (7).

7. The method for detecting an X-ring according to claim 6, wherein The adjustment assembly (8) also includes a C-shaped cover (804), which is sleeved on the vision sensor (7), and the opening of the C-shaped cover (804) faces the second axis fixing seat (802).

8. The method for detecting X-shaped loops according to claim 1, wherein The automatic detection device further includes a vertically placed first support pipe (10), a vertically placed second support pipe (11), a horizontally placed first crossbeam (12), a horizontally placed second crossbeam (13), a vertically placed pressure sleeve (15), and a driving device (14). The first support pipe (10) and the second support pipe (11) are respectively fixedly connected to both sides of the base (1). One side of the first crossbeam (12) is movably connected to the first support pipe (10), and the other side is movably connected to the second support pipe (11). The second crossbeam (13)... One side is fixedly connected to the top end of the first support tube (10), and the other side is fixedly connected to the top end of the second support tube (11). A drive device (14) is fixedly connected to the second crossbeam (13). The output end (302) of the drive device (14) is fixedly connected to the first crossbeam (12) to drive the first crossbeam (12) to move up and down on the mounting base (2). The drive device (14) is electrically connected to the controller. The pressure sleeve (15) is fixed at the lower end of the first crossbeam (12) and located directly above the mounting base (2).

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