Engine oil pan sealing tester for factory production lines

Abstract

This patent provides an engine oil pan sealability detector for a factory production line, which is particularly suitable for performing precise dry sealability detection on the engine oil pan through air detection. First, place the oil pan with the mounting surface facing down and the bottom facing up on the upper surface of the fixture base equipped with a sealing ring, and position it through two positioning pins; a profiling filling block is installed between the fixture base and the inner cavity of the oil pan to minimize the gas filling volume for sealability detection; eleven rotary clamping cylinders are used to clamp the oil pan, and a plugging cylinder plugs the holes at the bottom of the oil pan; a leak detector inflates the inner cavity of the oil pan for sealability detection, and the control system reads the detection data of the leak detector to determine whether the sealability of the oil pan is qualified; if the detection is qualified, a qualified marking is made on the oil pan through a laser marking machine.

Description

Technical Field

[0001] This patent relates to an engine oil pan sealing detection machine for factory production lines, which is particularly suitable for precisely detecting the dry sealing of engine oil pans by air detection at the factory production site. Background Art

[0002] As an important part of the engine, the oil pan plays a crucial role in aspects such as oil storage, cooling, and circulation. The oil pan is usually formed by metal stamping. During the factory production process, a small number of products may have leakage defects, and it is necessary to detect the sealing of each engine oil pan before leaving the factory. Currently, enterprises usually use the traditional water detection method to detect the sealing of the engine oil pan, that is, immerse the clamped and sealed oil pan in water, then fill it with compressed air, and observe whether there are bubbles emerging on the water surface with the naked eye. This method has large deviations and human misjudgments, etc. After water detection, it is also necessary to clean and dry the water stains on the oil pan, which will increase additional processes. Summary of the Invention

[0003] This patent provides an engine oil pan sealing detection machine for factory production lines, which is particularly suitable for precisely detecting the dry sealing of engine oil pans by air detection. First, place the oil pan with the mounting surface facing down and the bottom facing up on the upper surface of the fixture base equipped with a sealing ring, and position it through two positioning pins; an imitation filling block is installed between the fixture base and the inner cavity of the oil pan to minimize the gas filling volume for sealing detection; eleven rotary clamping cylinders are used to clamp the oil pan, and a plugging cylinder plugs the holes at the bottom of the oil pan; a leak detector inflates the inner cavity of the oil pan for sealing detection, and the control system reads the detection data of the leak detector to determine whether the sealing of the oil pan is qualified; if the detection is qualified, a qualified mark is made on the oil pan by a laser marking machine.

[0004] An engine oil pan sealing tester for factory production lines includes: a collection tube, a safety light curtain, an operating box, a frame, a laser marking machine, a leak detector, a human-machine interface, a sealing head, a rotary clamping cylinder, a fixture base, a sealing base, a sealing cylinder, an oil pan, a support head, a filling block, a clamping pressure head, a sealing ring, a diamond pin, and a cylindrical pin. Its features include: the frame is assembled from industrial aluminum profiles; the fixture base is mounted on the horizontal plane in the middle of the frame; the laser marking machine is mounted on the left side of the upper surface of the fixture base; the collection tube is mounted on the left rear side of the middle of the frame; the safety light curtain is mounted on both sides of the front side of the middle of the frame; the operating box is mounted on the front side of the frame; and the leak detector and human-machine interface are mounted on the upper side of the frame. The sealing base is mounted on... On the rear side of the upper surface of the fixture base, a sealing cylinder is mounted on the sealing base, and the sealing head is threadedly connected to the piston rod of the sealing cylinder. Eleven rotary clamping cylinders are mounted on the lower surface of the fixture base. The fixture base has eleven through holes, and the piston rods of the rotary clamping cylinders extend from the through holes to the upper surface of the fixture base. The clamping pressure head is threadedly connected to the piston rods of the rotary clamping cylinders. The filling block and sealing ring are respectively installed in the corresponding grooves on the upper surface of the fixture base. The support head is installed at the position of the bottom hole of the oil pan corresponding to the filling block. The diamond pin and cylindrical pin are respectively installed in the corresponding holes on the upper surface of the fixture base. The fixture base has through holes, and the leak detector is connected to the connector on the lower surface of the fixture base through the through hole via an air pipe.

[0005] The storage tube houses the air pipes and electrical wires, serving both aesthetic and storage purposes.

[0006] The safety light curtain serves as an operational safety protection measure, preventing hands or other objects from being inserted into the seal testing machine during operation.

[0007] The human-machine interface (HMI) performs the operation and display functions of the control system and serves as the interactive interface between the operator and the control system.

[0008] The support head serves to provide support and distribute pressure, preventing deformation of this part when the sealing head blocks the bottom hole of the oil pan.

[0009] The clamping head is made of copper, which effectively reduces damage to the surface of the oil pan during clamping.

[0010] The filler block is designed and manufactured based on the internal cavity of the oil pan. The gap between the filler block and the inner cavity of the oil pan is 5mm. Since the filler block fills the inner cavity of the oil pan, the inflation volume for sealing tests can be reduced to the minimum, thus reducing the inflation and testing time of the leak detector.

[0011] The sealing ring provides sealing, support, and shock absorption for the oil pan, effectively preventing damage to the surface of the oil pan during clamping.

[0012] The diamond-shaped pin and the cylindrical pin correspond to the two holes on the oil pan mounting surface, respectively, and serve as positioning devices.

[0013] During testing, the oil pan is first placed with its mounting surface facing down and bottom up on the upper surface of the fixture base equipped with the sealing ring, and positioned using diamond-shaped pins and cylindrical pins. Eleven rotary clamping cylinders drive the clamping heads to clamp the oil pan. The sealing cylinder drives the sealing head to seal the bottom hole of the oil pan. After clamping and sealing, the leak detector inflates the inner cavity of the oil pan through the air pipe to perform a sealing test. The control system reads the test data from the leak detector to determine whether the oil pan's sealing performance is up to standard. If the test is successful, the oil pan is marked with a laser marking machine to indicate that it is up to standard.

[0014] This patent designs clamping, sealing, and filling devices, and uses a leak detector to perform dry sealing tests on the oil pan. It features simple structure, convenient use, stable operation, and high precision, and has great application value. This patent is also applicable to the sealing tests of other hollow parts. Attached Figure Description

[0015] Figure 1 This is a three-dimensional rendering of the oil pan of the engine oil pan sealing tester for factory production lines according to the present invention.

[0016] Figure 2 This is a three-dimensional rendering of the engine oil pan sealing tester for factory production lines according to the present invention.

[0017] Figure 3 This is a three-dimensional rendering of the engine oil pan sealing tester for factory production lines after the oil pan has been clamped and sealed.

[0018] Figure 4 This is a three-dimensional rendering of the engine oil pan sealing tester for factory production lines of the present invention before the oil pan is placed, clamped, and sealed.

[0019] Figure 5 This is a top-view three-dimensional rendering of the engine oil pan sealing tester for factory production lines according to the present invention.

[0020] In the diagram: 1-Receiving tube, 2-Safety light curtain, 3-Operation box, 4-Standing frame, 5-Laser marking machine, 6-Leak detector, 7-Human-machine interface, 8-Sealing head, 9-Rotary clamping cylinder, 10-Clamping base, 11-Sealing base, 12-Sealing cylinder, 13-Oil pan, 14-Support head, 15-Filling block, 16-Clamping pressure head, 17-Sealing ring, 18-Rhombus pin, 19-Cylindrical pin. Detailed Implementation

[0021] An engine oil pan sealing tester for factory production lines includes: a collection tube 1, a safety light curtain 2, an operation box 3, a frame 4, a laser marking machine 5, a leak detector 6, a human-machine interface 7, a sealing head 8, a rotary clamping cylinder 9, a fixture base 10, a sealing base 11, a sealing cylinder 12, an oil pan 13, a support head 14, a filling block 15, a clamping pressure head 16, a sealing ring 17, a diamond pin 18, and a cylindrical pin 19. Its features are: the frame 4 is assembled from industrial aluminum profiles; the fixture base 10 is mounted on the horizontal plane in the middle of the frame 4; the laser marking machine 5 is mounted on the left side of the upper surface of the fixture base 10; the collection tube 1 is mounted on the left rear side in the middle of the frame 4; the safety light curtain 2 is mounted on both sides of the front side in the middle of the frame 4; the operation box 3 is mounted on the front side of the frame 4; and the leak detector 6 and the human-machine interface 7 are mounted on the upper side of the frame 4. The sealing base 11... The sealing cylinder 12 is mounted on the rear side of the upper surface of the clamp base 10, and the sealing head 8 is connected to the piston rod of the sealing cylinder 12 by a thread. Eleven rotary clamping cylinders 9 are mounted on the lower surface of the clamp base 11. The clamp base 11 has eleven through holes. The piston rod of the rotary clamping cylinder 9 extends from the through holes to the upper surface of the clamp base 11. The clamping head 16 is connected to the piston rod of the rotary clamping cylinder 9 by a thread. The filling block 15 and the sealing ring 17 are respectively installed in the corresponding grooves on the upper surface of the clamp base 11. The support head 14 is installed at the position of the bottom hole of the oil pan 13 corresponding to the filling block 15. The diamond pin 18 and the cylindrical pin 19 are respectively installed in the corresponding holes on the upper surface of the clamp base 10. The clamp base 10 has through holes, and the leak detector 6 is connected to the connector on the lower surface of the through hole of the clamp base 10 through an air pipe.

[0022] The storage tube 1 houses the air pipe and electrical wires, serving both aesthetic and storage purposes.

[0023] Safety light curtain 2 serves as an operational safety protection mechanism, preventing hands or other objects from being inserted into the seal testing machine during operation.

[0024] The human-machine interface 7 performs the operation and display functions of the control system and serves as the interactive interface between the operator and the control system.

[0025] The support head 14 serves to support and distribute pressure, preventing deformation of this part when the sealing head 8 seals the bottom hole of the oil pan 13.

[0026] The clamping head 16 is made of copper, which effectively reduces damage to the surface of the oil pan 13 during clamping.

[0027] The filler block 15 is designed and manufactured based on the internal cavity of the oil pan 13. The gap between the filler block 15 and the internal cavity of the oil pan 13 is 5mm. Since the filler block 15 fills the internal cavity of the oil pan 13, the inflation volume for sealing test can be reduced to the minimum, thus reducing the inflation and testing time of the leak detector.

[0028] The sealing ring 17 provides sealing, support and shock absorption for the oil pan 13, effectively preventing damage to the surface of the oil pan 13 when clamped.

[0029] The diamond-shaped pin 18 and the cylindrical pin 19 correspond to the two holes on the mounting surface of the oil pan 13, and serve as positioning devices.

[0030] During testing, the oil pan 13 is first placed with its mounting surface facing down and bottom facing up on the upper surface of the fixture base 10 containing the sealing ring 17, and positioned by the diamond pin 18 and cylindrical pin 19. Eleven rotary clamping cylinders 9 drive the clamping pressure head 16 to clamp the oil pan 13. The sealing cylinder 12 drives the sealing head 8 to seal the bottom hole of the oil pan 13. After clamping and sealing, the leak detector 6 inflates the inner cavity of the oil pan 13 through the air pipe to perform a sealing test. The control system reads the test data from the leak detector 6 to determine whether the sealing performance of the oil pan 13 is qualified. If the test is qualified, the oil pan 13 is marked with a qualified mark by the laser marking machine 5.

Claims

1. An engine oil pan leak detection machine for use on a factory production line, comprising: The components include a storage tube, safety light curtain, operating box, platform, laser marking machine, leak detector, human-machine interface, sealing head, rotary clamping cylinder, fixture base, sealing base, sealing cylinder, oil pan, support head, filling block, clamping pressure head, sealing ring, diamond pin, and cylindrical pin. The platform is assembled from industrial aluminum profiles. The fixture base is mounted on the horizontal plane in the middle of the platform. The laser marking machine is mounted on the left side of the upper surface of the fixture base. The storage tube is mounted on the left rear side of the middle of the platform. The safety light curtain is mounted on both sides of the front side of the middle of the platform. The operating box is mounted on the front side of the platform. The leak detector and human-machine interface are mounted on the upper side of the platform. The sealing base is mounted on the rear side of the upper surface of the fixture base. The cylinder is mounted on the sealing base, and the sealing head is threadedly connected to the piston rod of the sealing cylinder. Eleven rotary clamping cylinders are mounted on the lower surface of the fixture base. The fixture base has eleven through holes. The piston rods of the rotary clamping cylinders extend from the through holes to the upper surface of the fixture base. The clamping head is threadedly connected to the piston rods of the rotary clamping cylinders. The filling block and sealing ring are respectively installed in the corresponding grooves on the upper surface of the fixture base. The support head is installed at the position of the filling block corresponding to the bottom hole of the oil pan. The diamond pin and cylindrical pin are respectively installed in the corresponding holes on the upper surface of the fixture base. The fixture base has through holes, and the leak detector is connected to the connector on the lower surface of the fixture base through the through hole via an air pipe.

2. The engine oil pan leak detection machine for use in a factory production line according to claim 1, characterized by: The support head provides support and pressure dispersion, preventing deformation of this part when the sealing head blocks the bottom hole of the oil pan. The clamping head is made of copper, effectively reducing damage to the surface of the oil pan during clamping. The filler block is designed and manufactured based on the internal cavity of the oil pan, with a 5mm gap between the filler block and the inner cavity of the oil pan. Since the filler block fills the inner cavity of the oil pan, it can minimize the inflation volume for sealing tests and reduce the inflation and testing time of the leak detector. The sealing ring provides sealing, support, and shock absorption for the oil pan, effectively preventing damage to the surface of the oil pan during clamping. The diamond-shaped pin and cylindrical pin correspond to the two holes on the mounting surface of the oil pan, serving a positioning function.

3. The engine oil pan leak detection machine for use in a factory production line according to claim 1, characterized by: During testing, the oil pan is first placed with its mounting surface facing down and bottom up on the upper surface of the fixture base equipped with the sealing ring, and positioned using diamond-shaped pins and cylindrical pins. Eleven rotary clamping cylinders drive the clamping heads to clamp the oil pan. The sealing cylinder drives the sealing head to seal the bottom hole of the oil pan. After clamping and sealing, the leak detector inflates the inner cavity of the oil pan through the air pipe to perform a sealing test. The control system reads the test data from the leak detector to determine whether the oil pan's sealing performance is up to standard. If the test is successful, the oil pan is marked with a laser marking machine to indicate that it is up to standard.

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