A device for testing the sealing performance of automobile oil filters

Abstract

The present invention belongs to the technical field of automobile filter detection, and specifically discloses a device for detecting the sealing performance of automobile oil filters, comprising a frame, a supporting base fixedly connected to the frame, a cylinder body provided at the bottom of the supporting base, a clamping cylinder movably connected to the cylinder body, a piston provided outside the clamping cylinder body, the piston being located in the cylinder body and moving along the axial direction of the cylinder body, the clamping cylinder, the piston, the cylinder body and the supporting base jointly enclose an inner cavity, a detection hole for extending the clamping claw of the clamping cylinder is provided on the supporting base, the detection hole is connected to the inner cavity, and a vent hole is provided on the side wall of the detection hole. The present invention utilizes the clamping claw to open outward from the inside of the filter to clamp the filter, pulls down the filter, and then ventilates the product and the cylinder body to generate back pressure in the cylinder body, directly detecting the pressure change inside and outside the cylinder body, and thus detecting the sealing performance of the product. No liquid remains after the entire sealing test, the detection process is convenient and the detection efficiency is high, and it can also be automated for mass production.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile filter detection, and in particular relates to a device for detecting the sealing performance of an automobile oil filter. Background Art

[0002] The oil filter is a filtering component of a car engine, used to remove impurities such as dust, metal particles, carbon deposits and soot particles from the oil, prevent the fuel system from being blocked (especially the injectors), reduce mechanical wear, ensure stable engine operation, improve reliability, and thus protect the engine. Since the oil filter is connected to the oil drain pipe through a threaded connection structure, the oil filter needs to be sealed during its production process to ensure that there is no oil leakage in the filter before it can be used normally.

[0003] Existing oil filters are tested for their sealing performance by oil testing or water testing. That is, oil or water is injected into the oil hole of the oil filter, and the filter's sealing performance is then judged by whether the filter leaks oil or water. Generally, after the test is completed, there is still liquid residue such as oil or water in the filter, which is difficult to clean. In addition, the test is very inconvenient and the test efficiency is low.

[0004] Therefore, the inventors have devoted themselves to designing a device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for detecting the sealing performance of an automobile oil filter, wherein no liquid remains after the detection, the detection is convenient and the detection efficiency is high.

[0006] In order to achieve the above object, a technical solution adopted by the present invention is:

[0007] A device for detecting the sealing of an automobile oil filter, comprising a frame, a bearing seat fixedly connected to the frame, a cylinder body provided at the bottom of the bearing seat, a clamping cylinder movably connected to the cylinder body, a piston provided outside the clamping cylinder, the piston being located in the cylinder body and moving along the axial direction of the cylinder body, the clamping cylinder, the piston, the cylinder body and the bearing seat jointly forming an inner cavity, a detection hole provided on the bearing seat for extending the clamping claw of the clamping cylinder, the detection hole being connected to the inner cavity, and a vent hole provided on the side wall of the detection hole.

[0008] As an improvement to the device for detecting the sealing performance of automobile oil filters according to the present invention, a fixing frame is provided below the supporting seat, a vertical moving screw rod is rotatably connected to the fixing frame, a vertical moving seat is provided on a movable sleeve of the vertical moving screw rod, the vertical moving seat moves vertically with the rotation of the vertical moving screw rod, and the vertical moving seat is fixedly connected to the piston via a push column.

[0009] As an improvement of the device for detecting the sealing of automobile oil filters of the present invention, the clamping cylinder includes a clamping cylinder and a clamping head, the clamping jaw is located on the end surface of the clamping jaw head and is driven to open and close by the clamping jaw cylinder, the piston is sleeved on the clamping jaw head, and the clamping jaw cylinder is slidably connected to the push column through a sliding plate.

[0010] As an improvement of the equipment for detecting the sealing of automobile oil filters according to the present invention, a pressure block is provided directly above the bearing seat, a positioning hole is provided at the bottom of the pressure block, the positioning hole is coaxially arranged with the detection hole, a pressing screw is rotatably connected to the frame, a pressing slider is sleeved on the pressing screw, and the pressing slider is connected to the pressure block through the pressing rod.

[0011] As an improvement of the device for detecting the sealing performance of an automobile oil filter of the present invention, a transfer rod is rotatably connected to the bearing seat, and the transfer rod is located beside the detection hole.

[0012] As an improvement to the device for detecting the sealing performance of automobile oil filters of the present invention, a pair of positioning clips are slidably connected to the bearing end surface of the bearing seat, the same pair of positioning clips are symmetrically arranged and the sliding directions of the two are opposite, and the detection hole is located between the same pair of positioning clips.

[0013] As an improvement to the device for detecting the sealing performance of automobile oil filters of the present invention, the transfer rod is located on one of the positioning clamps, the clamping portion of the positioning clamp is V-shaped, and the same pair of positioning clamps are driven by the same belt drive mechanism to slide in opposite directions.

[0014] As an improvement to the device for detecting the sealing of automobile oil filters of the present invention, an input belt and an output belt are provided on the frame, the output belt has the same running direction as the input belt and the two are arranged at intervals, and the number of the bearing seats is multiple and they are arranged in a row at intervals between the input belt and the output belt.

[0015] As an improvement to the device for detecting the sealing of automobile oil filters of the present invention, the input end of the input belt is connected to a feed belt, and two blocks are spaced apart above the feed belt. The two blocks are pushed by different blocking cylinders and extend into the conveying space of the feed belt.

[0016] As an improvement to the device for detecting the sealing of automobile oil filters of the present invention, a plurality of defective product boxes are fixed at intervals on the frame, the output belt is located between the plurality of defective product boxes and the plurality of supporting seats, and the plurality of defective product boxes and the plurality of supporting seats are arranged in a one-to-one correspondence.

[0017] Compared with the prior art, the device for detecting the sealing performance of automobile oil filters of the present invention arranges a cylinder body at the bottom of a supporting seat and arranges a clamping cylinder in the cylinder body, and utilizes the clamping claws of the clamping claw cylinder to extend into the filter oil hole on the supporting seat so that the clamping claws are opened outward from the inside of the filter to clamp the filter, and the clamping claw cylinder directly pulls down the filter to seal the filter and the supporting seat, and then ventilates the filter and the cylinder body through the supporting seat to generate back pressure in the cylinder body, and directly detects the pressure changes inside and outside the cylinder body to detect the sealing performance of the filter. No liquid residue exists after the entire sealing test, the testing process is convenient and the testing efficiency is high, and it can also be automated for mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a perspective view of an apparatus for detecting the sealing performance of an automobile oil filter according to the present invention;

[0019] Figure 2 This is a perspective view of the internal structure of the device for detecting the sealing performance of an automobile oil filter according to the present invention;

[0020] Figure 3 yes Figure 2 Magnified view at point A in the middle;

[0021] Figure 4 is another perspective view of the internal structure of the device for detecting the sealing performance of an automobile oil filter according to the present invention;

[0022] Figure 5 This is a magnified perspective view of the feed end of the device for detecting the sealing performance of an automobile oil filter according to the present invention;

[0023] Figure 6 is a three-dimensional enlarged view of an output belt of the device for detecting the sealing performance of an automobile oil filter according to the present invention;

[0024] Figure 7 It is a three-dimensional enlarged view of the sealing detection station of the present invention;

[0025] Figure 8 is another enlarged perspective view of the sealing detection station of the present invention;

[0026] Figure 9 It is a three-dimensional enlarged view of the bearing seat, positioning clamp, transfer rod and related driving parts of the present invention;

[0027] Figure 10 This is another enlarged perspective view of the sealing detection station of the present invention;

[0028] Figure 11 It is an enlarged cross-sectional view of the bearing seat, the pressing block, the clamping claw cylinder and the related driving parts of the present invention;

[0029] Figure 12 yes Figure 11 Enlarged view of point B in the middle;

[0030] Figure 13 It is a three-dimensional enlarged view of the clamping cylinder in the open state and the filter of the present invention.

[0031] Illustration:

[0032] 1. Frame; 11. Feed belt; 111. First stop cylinder; 1111. First stopper; 112. Second stop cylinder; 1121. Second stopper; 113. Feed motor; 114. Feed driving wheel; 12. Input belt; 13. Output belt; 131. Output motor; 14. Output belt; 15. Defective product box; 16. Fixed frame; 2. Bearing seat; 21. Ventilation hole; 22. Detection hole; 3. Transfer rod; 31. Transfer motor; 4. Positioning clamp; 41. Clamping part; 42. Clamping motor; 43. Clamping belt Belt; 431, connecting block; 432, connecting rod; 5, pressing block; 51, pressing motor; 511, pressing belt; 52, pressing screw; 521, pressing slider; 522, pressing rod; 53, positioning hole; 6, clamping jaw cylinder; 61, clamping jaw cylinder; 611, sliding plate; 62, clamping jaw head; 621, clamping jaw; 63, vertical movement motor; 631, vertical movement screw; 632, vertical movement seat; 6321, push column; 633, piston; 7, cylinder body; 71, inner cavity; 8, filter; 81, outlet hole; 82, inlet hole; 83, sealing ring. DETAILED DESCRIPTION

[0033] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings, which are for reference and illustration only and do not limit the scope of patent protection of the present invention.

[0034] Reference Figures 1 to 13 A device for detecting the sealing of an automobile oil filter includes a frame 1, to which a supporting base 2 is fixedly connected. A cylinder body 7 is provided at the bottom of the supporting base 2, and a clamping cylinder 6 is movably connected in the cylinder body 7. A piston 633 is provided on the outer sleeve of the clamping cylinder 6. The piston 633 is located in the cylinder body 7 and moves along the axial direction of the cylinder body 7. The clamping cylinder 6, the piston 633, the cylinder body 7 and the supporting base 2 are jointly surrounded to form an inner cavity 71. A detection hole 22 is provided on the supporting base 2 for extending the clamping claw 621 of the clamping cylinder 6. The detection hole 22 is communicated with the inner cavity 71, and a vent hole 21 is provided on the side wall of the detection hole 22.

[0035] Reference Figures 1 to 4, the number of supporting seats 2 is multiple. In the present invention, the number of supporting seats 2 is preferably four. The number of supporting seats 2, cylinder body 7, clamping cylinder 6 and piston 633 is the same and one-to-one corresponding. An input belt 12, an output belt 13, a feeding belt 11 and a discharging belt 14 are provided on the frame 1, wherein the feeding belt 11 and the input belt 12 are arranged in a row, and the output end of the feeding belt 11 is docked with the input end of the input belt 12, so that the filter 8 on the feeding belt 11 can be smoothly transported to the input belt 12, the output belt 13 has the same running direction as the input belt 12 and the two are arranged at intervals, the four supporting seats 2 are arranged in a row between the input belt 12 and the output belt 13, the discharging belt 14 and the output belt 13 are arranged in a row, and the output end of the output belt 13 is docked with the input end of the discharging belt 14, so that the output belt The filter 8 on the belt 13 can be smoothly transported to the discharging belt 14. In the present invention, the structures of the input belt 12, the output belt 13, the feed belt 11 and the discharging belt 14 are the same. The feed belt 11 is taken as an example for explanation. A feed driving wheel 114 is provided under the feed belt 11, and the feed driving wheel 114 is driven to rotate by the feed motor 113 on the frame 1. After the left and right ends of the entire feed belt 11 pass around the corresponding driven wheels, they also need to pass around two directional wheels and then pass around the feed driving wheel 114. The feed motor 113 directly drives the feed driving wheel 114 to drive the feed belt 11 to run. An output motor 131 is also provided at the output end of the frame 1. The output motor 131 drives the output belt 13 to run through the output driving wheel. The structure and operation principle of the input belt 12 and the output belt 13 are the same as those of the feed belt 11, and will not be elaborated here.

[0036] Reference Figure 2 、 Figure 4 and Figure 5, the feeding belt 11 is directly above the conveying space, and two blocks are arranged above the feeding belt 11, the two blocks are specifically a first block 1111 and a second block 1121, the first block 1111 and the second block 1121 are arranged at intervals along the product transportation direction of the feeding belt 11, and two different blocking cylinders are provided on the side of the feeding belt 11, the two blocking cylinders are specifically a first blocking cylinder 111 and a second blocking cylinder 112, the first block 1111 is fixed on the output shaft of the first blocking cylinder 111, and the second block 1 121 is fixed on the output shaft of the second stop cylinder 112. When there are multiple filters 8 on the feed belt 11, the second stop cylinder 112 pushes the second stop block 1121 to move into the conveying space of the feed belt 11, preventing all filters 8 from moving forward. The first stop cylinder 111 pushes the first stop block 1111 to move into the conveying space of the feed belt 11 and is located between the two frontmost filters 8, separating the two frontmost filters 8. When the second stop block 1121 retracts, the frontmost filter 8 can move forward smoothly and move to the input belt 12.

[0037] Reference Figure 2 、 Figure 3 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13The vent holes 21 of each bearing seat 2 are arranged perpendicular to the corresponding detection holes 22. The sealing detection structure on each bearing seat 2 is the same. The sealing detection structure on one of the bearing seats 2 is now described as an example. Specifically, a clamping cylinder 6 and a cylinder body 7 are provided at the bottom of each bearing seat 2. The cylinder body 7 is cylindrical and is sleeved outside the entire clamping cylinder 6. The clamping cylinder 6 includes a clamping cylinder 61 and a clamping head 62. The top surface of the clamping head 62 is provided with a three-finger clamping claw 621. The clamping claw 621 can be driven by the clamping claw cylinder 61 to realize the opening and closing action. A piston 633 is sleeved on the clamping jaw 621, and two sealing rings are sleeved outside the piston 633. The piston 633 is located below the clamping jaw 621, and the clamping jaw cylinder 61 is located directly below the clamping jaw head 62. A sliding plate 611 is fixedly sleeved outside the clamping jaw cylinder 61. A fixing frame 16 is provided below each supporting seat 2. The clamping jaw cylinder 6 and the cylinder body 7 are both located between the supporting seat 2 and the fixing frame 16. The fixing frame 16 is located in the frame 1 and is fixedly connected to the frame 1. A vertical motor 63 is fixed to the bottom of the fixing frame 16, and the output shaft at the top of the vertical motor 63 is provided with a A vertical moving screw rod 631, which rotates and passes through the fixed frame 16, and a vertical moving seat 632 is movably provided on the vertical moving screw rod 631. The vertical moving seat 632 is located in the fixed frame 16. The vertical moving seat 632 moves vertically with the rotation of the vertical moving screw rod 631. Four push pins 6321 are vertically fixed on the end surface of the vertical moving seat 632. The four push pins 6321 pass through the fixed frame 16 and extend to the outside of the fixed frame 16 and are fixedly connected to the piston 633, so that the vertical moving seat 632 can be fixedly connected to the piston 633 through the four push pins 6321. The four push pins 632 The four notches on the edge of the sliding plate 611 are arranged in a circle around the clamping cylinder 61. The four notches on the edge of the sliding plate 611 are slidably matched with the four push pins 6321, so that the clamping cylinder 61 is slidably connected to the push pins 6321 through the sliding plate 611. The vertical movement motor 63 drives the vertical movement screw 631 to rotate, and the vertical movement screw 631 drives the vertical movement seat 632 to move. The vertical movement seat 632 drives the piston 633 to move in the cylinder body 7 through the four push pins 6321, thereby changing the volume of the inner cavity 71. At the same time, the clamping jaw head 62 moves synchronously with the piston 633, so that the position of the clamping jaw 621 changes.

[0038] Reference Figure 9 、 Figure 11 and Figure 12 In order to push the filter 8 on the input belt 12 onto the corresponding bearing seat 2, each bearing seat 2 is rotatably connected to a transfer rod 3, which is located next to the detection hole 22 of the corresponding bearing seat 2. A transfer motor 31 is fixed to the bottom of the bearing seat 2, and the transfer rod 3 is located on the output shaft of the transfer motor 31. The transfer motor 31 drives the transfer rod 3 to rotate, which can push the filter 8 on the input belt 12 onto the corresponding bearing seat 2, and can also push the filter 8 on the bearing seat 2 onto the output belt 13.

[0039] Reference Figure 7 、 Figure 9 、 Figure 11 and Figure 12 , because the transfer rod 3 is difficult to accurately push the filter 8 from the input belt 12 to the detection hole 22 of the bearing seat 2, the position of the filter 8 on the bearing seat 2 needs to be corrected before the sealing test of the equipment of the present invention. A pair of positioning clamps 4 are slidably connected to the bearing end surface of each bearing seat 2. The same pair of positioning clamps 4 are symmetrically arranged and the sliding directions of the two are opposite. The detection hole 22 of the bearing seat 2 is located between the same pair of positioning clamps 4. The clamping portion 41 of each positioning clamp 4 is V-shaped. The transfer rod 3 is located on the positioning clamp 4 on the left. The same pair of positioning clamps 4 are driven by the same belt transmission mechanism to slide in the opposite direction. The entire belt transmission mechanism is located directly below the output belt 13. Specifically, the belt transmission mechanism The mechanism includes a clamping motor 42, a clamping belt 43, two connecting blocks 431 and two connecting rods 432. The clamping motor 42 is fixed on the frame 1. The two connecting blocks 431 are respectively clamped and fixed on the upper and lower end surfaces of the clamping belt 43. The two positioning clamps 4 are respectively connected to the two connecting blocks 431 through the connecting rods 432. The output driving gear of the clamping motor 42 drives the clamping belt 43 to run, so that the moving directions of the two connecting blocks 431 are opposite, and then drive the same pair of positioning clamps 4 to slide in the opposite direction on the corresponding supporting seat 2 to realize clamping or releasing action. A pressure sensor is provided on the positioning clamp 4 to detect whether a product is clamped and the size of the clamped product.

[0040] Reference Figure 2 and Figure 7 In order to make the clamping claw 621 of the clamping claw cylinder 6 smoothly inserted into the outlet hole 81 of the filter 8 and clamp the filter 8, and at the same time detect the clamped product, a pressing block 5 is provided just above each supporting seat 2, and a positioning hole 53 is provided at the bottom of the pressing block 5. The positioning hole 53 is coaxially arranged with the detection hole 22 of the corresponding supporting seat 2. A pressing motor 51 is provided on the support frame of the frame 1, and a pressing screw 52 is rotatably connected to the support frame. The pressing motor 51 is connected to the pressing screw 5 through a pressing belt 511. 2 is connected in a belt drive manner. A pressing slider 521 is movably sleeved on the pressing screw 52. The pressing slider 521 is fixedly connected to the top of the pressing block 5 through two pressing rods 522. The pressing motor 51 drives the pressing screw 52 to rotate through the pressing belt 511, thereby driving the pressing screw 52 to move vertically. The pressing screw 52 drives the pressing block 5 to move vertically through the pressing rods 522. The pressing block 5 has a torque detection function. When it presses the product, it can automatically detect that the product is in its positioning hole 53.

[0041] Reference Figure 2 and Figure 4In order to detect the filter 8 in real time, proximity switches are provided on the sides of the feed belt 11 and the input belt 12. A plurality of defective product boxes 15 are also fixed at intervals on the frame 1. Since the present invention has four sealing detection stations, four defective product boxes 15 are preferably provided in this embodiment. Four clamping motors 42 are arranged one-to-one on the sides of the four defective product boxes 15. The output belt 13 is located between the four defective product boxes 15 and the four supporting seats 2. The four defective product boxes 15 and the four supporting seats 2 are arranged one-to-one. The rotation speed and angle of the transfer rod 3 directly determine the transfer position of the filter 8. When the transfer rod 3 rotates at a certain speed and angle, the filter 8 can be pushed onto the discharge belt 14. When the transfer rod 3 rotates at a greater speed and angle, the filter 8 can be pushed into the defective product box 15.

[0042] Reference Figures 1 to 13 The four stations corresponding to the four supporting seats 2 of the present invention for testing the sealing performance of automobile oil filters are: the first sealing testing station, the second sealing testing station, the third sealing testing station and the fourth sealing testing station. The working principle of the entire equipment is as follows:

[0043] Multiple filters 8 are placed on the feed belt 11 in sequence. The feed motor 113 drives the feed belt 11 through the feed driving wheel 114 to drive the multiple filters 8 to move to the left.

[0044] When the proximity switch on the feed belt 11 detects the first filter 8, the second stop cylinder 112 pushes the second stop block 1121 forward to prevent other filters 8 from blocking it, until the first filter 8 moves to the first sealing detection station of the input belt 12, the first stop cylinder 111 pushes the first stop block 1111 to be inserted between the second filter 8 and the third filter 8, the second stop cylinder 112 controls the second stop block 1121 to retract, and the second filter 8 moves to the input belt 12 along with the feed belt 11, until the four filters 8 in front are placed on the input belt 12 at intervals and correspond to the four sealing detection stations one by one;

[0045] The material transfer motor 31 on each sealing detection station drives the corresponding material transfer rod 3 to rotate counterclockwise, pushing the filter 8 on the input belt 12 onto the corresponding bearing seat 2;

[0046] The clamping motor 42 drives the same pair of positioning clamps 4 to slide toward each other on the support base 2 through a belt drive, clamping the filter 8 on the support base 2 so that the outlet hole 81 at the bottom of the filter 8 is coaxial with the detection hole 22 on the support base 2. At this time, the positioning clamps 4 can detect whether the filter 8 is clamped and the size of the clamped filter 8;

[0047] The pressing motor 51 drives the pressing screw 52 to rotate through the belt transmission, thereby driving the pressing slider 521 to move downward. The pressing slider 521 drives the pressing block 5 downward through the pressing rod 522, so that the filter 8 is located in the positioning hole 53 of the pressing block 5. At this time, the clamping motor 42 controls the same pair of positioning clamps 4 to slide back and forth on the bearing seat 2 through the belt transmission, thereby releasing the filter 8.

[0048] The vertical movement motor 63 controls the vertical movement screw 631 to rotate, and the vertical movement seat 632 moves up. The vertical movement seat 632 pushes the piston 633 and the clamping cylinder 6 to move up through the vertical movement screw 631. The clamping claw 621 of the clamping claw cylinder 6 passes through the detection hole 22 of the bearing seat 2 and extends into the outlet hole 81 at the bottom of the filter 8. At this time, the clamping claw cylinder 6 will push the filter 8 to move up a certain distance in the positioning hole 53 of the pressure block 5 until the filter 8 presses against the bottom of the positioning hole 53. The pressure block 5 can then detect the filter 8. The clamping claw cylinder 61 of the clamping claw cylinder 6 controls the three fingers of the clamping claw 621 to open, clamping the filter 8 from the inside of the filter 8.

[0049] The vertical movement motor 63 rotates in the opposite direction through the vertical movement screw 631, and the vertical movement seat 632 moves downward. The vertical movement seat 632 pushes the piston 633 and the clamping cylinder 6 downward through the vertical movement screw 631, pulling the clamped filter 8 downward, so that the sealing ring 83 at the bottom of the filter 8 presses against the bearing seat 2;

[0050] Air is ventilated into the support base 2 from the vent hole 21. A portion of the gas in the support base 2 enters the filter 8 through the outlet hole 81 and multiple inlet holes 82 at the bottom of the filter 8. Another portion of the gas in the support base 2 enters the inner cavity 71 of the cylinder 7, forming a back pressure, which creates a pressure difference between the inner cavity 71 of the cylinder 7 and the surrounding area. By directly detecting the pressure changes inside and outside the cylinder 7, the sealing performance of the filter 8 can be tested.

[0051] The pressing motor 51 controls the pressing block 5 to move upward, and the clamping cylinder 6 releases the filter 8 and retreats into the cylinder body 7;

[0052] When the sealing test shows that the filter 8 is good, the material transfer motor 31 controls the material transfer rod 3 to rotate in the reverse direction, pushing the filter 8 on the support seat 2 onto the discharge belt 14, and finally moving to the discharge belt 14 for normal discharge;

[0053] When the sealing test shows that the filter 8 is defective, the material transfer motor 31 controls the material transfer rod 3 to rotate in the reverse direction, pushing the filter 8 on the supporting seat 2 into the corresponding defective box 15.

[0054] The present invention is a device for testing the sealing performance of automobile oil filters. Four identical sealing testing stations are used to test the sealing performance of four filters 8 at the same time. Each station is provided with a cylinder body 7 at the bottom of the supporting base 2, and a clamping cylinder 6 is provided in the cylinder body 7. The clamping claw 621 of the clamping claw cylinder 6 is extended into the oil hole of the filter 8 on the supporting base 2 so that the clamping claw 621 is opened outward inside the filter 8 to clamp the filter 8. The pressure block 5 positions and tests the filter 8. The clamping claw cylinder 6 directly pulls down the filter 8 to make the filter 8 The filter 8 is sealed and connected to the supporting seat 2, and then gas is directly introduced into the supporting seat 2 to ventilate the filter 8 and the cylinder 7, so that back pressure is generated in the cylinder 7. The pressure difference between the inside and outside of the cylinder 7 is used to detect the sealing of the filter 8. After the detection is completed, the transfer rod 3 of each workstation pushes the filter 8 with good sealing to the output belt 13 according to the sealing test result, so as to be transported to the discharge belt 14, and pushes the filter 8 with unsatisfactory sealing to the corresponding defective product box 15, thereby realizing automated batch production and improving detection efficiency.

[0055] The above disclosure is only a preferred embodiment of the present invention and cannot be used to limit the scope of protection of the present invention. Therefore, equivalent changes made within the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A device for detecting the sealing performance of an automobile oil filter, comprising a frame, characterized in that: The frame is fixedly connected to a bearing seat, a cylinder body is provided at the bottom of the bearing seat, a clamping cylinder is movably connected to the cylinder body, a piston is provided on the outer sleeve of the clamping cylinder, the piston is located in the cylinder body and moves along the axial direction of the cylinder body, the clamping cylinder, the piston, the cylinder body and the bearing seat are jointly surrounded to form an inner cavity, a detection hole is provided on the bearing seat for the clamping claw of the clamping cylinder to extend, the detection hole is communicated with the inner cavity, and a vent hole is provided on the side wall of the detection hole; A pair of positioning clips are slidably connected to the bearing end surface of the bearing seat, and the same pair of positioning clips are symmetrically arranged and the two The sliding direction is opposite to that of the positioning clamps, and the detection hole is located between the same pair of positioning clamps; The frame is provided with an input belt and an output belt, and the output belt runs in the same direction as the input belt. The two are spaced apart, and the number of the bearing seats is multiple and they are spaced apart in a row between the input belt and the output belt. between; The rack is provided with a plurality of defective product boxes fixed at intervals, and the output belt is located between the plurality of defective product boxes and the plurality of defective product boxes. Between the supporting seats, a plurality of defective product boxes are arranged in a one-to-one correspondence with a plurality of the supporting seats; The bearing seat is rotatably connected with a transfer rod, which is located beside the detection hole. It is only used to push the product to be tested on the input belt to the corresponding support seat, and is also used to push the product to be tested on the corresponding support seat. The inspected products are pushed onto the output belt or into the corresponding defective product box.

2. The device for detecting the sealing performance of an automobile oil filter according to claim 1, characterized in that: A fixing frame is provided below the bearing seat, and a vertical moving screw rod is rotatably connected to the fixing frame. A vertical moving seat is movably sleeved on the vertical moving screw rod. The vertical moving seat moves vertically with the rotation of the vertical moving screw rod, and the vertical moving seat is fixedly connected to the piston through a push column.

3. The device for detecting the sealing performance of an automobile oil filter according to claim 2, characterized in that: The clamping cylinder includes a clamping cylinder and a clamping head. The clamping jaw is located on the end surface of the clamping jaw head and is driven to open and close by the clamping cylinder. The piston is sleeved on the clamping jaw head. The clamping cylinder is slidably connected to the push column through a sliding plate.

4. The device for detecting the sealing performance of an automobile oil filter according to claim 1, characterized in that: A pressure block is provided directly above the bearing seat, a positioning hole is provided at the bottom of the pressure block, the positioning hole is coaxially arranged with the detection hole, a pressure screw is rotatably connected to the frame, a pressure slider is sleeved on the pressure screw, and the pressure slider is connected to the pressure block through the pressure rod.

5. The device for detecting the sealing performance of an automobile oil filter according to claim 1, characterized in that: The transfer rod is located on one of the positioning clamps, the clamping portion of the positioning clamp is V-shaped, and the same pair of positioning clamps are driven by the same belt transmission mechanism to slide in opposite directions.

6. The device for detecting the sealing performance of an automobile oil filter according to claim 1, characterized in that: The input end of the input belt is connected to the feed belt. Two blocks are spaced apart above the feed belt. The two blocks are pushed by different blocking cylinders to extend into the conveying space of the feed belt.

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