A sealing detection device for automobile parts

Abstract

The present invention discloses a sealing detection device for automobile parts, comprising a frame, a trough body is mounted on the frame, a translational lifting test bench is installed in the trough body, a fixed detection fixture corresponding to the part to be detected is placed on the table of the test bench, the lifting of the test bench is driven by a platform cylinder at one end thereof, the extended end of the piston rod of the platform cylinder is set downward, and the end of the piston rod is hingedly connected to one end of the test bench, a fixing ear is installed at the end of the cylinder body at the upper end of the platform cylinder, and the fixing ear is rotatably mounted on a fixed frame on one side of the trough body through a rotating shaft, and a support frame is hinged at the bottom end of both ends of the test bench, and the bottom end of the support frame is hinged in the trough body. The present invention adopts a parallelogram lifting mechanism, which has good stability during the lifting process and a large working space on the test bench, thereby expanding the universal performance of the fixture tooling, saving space, convenient and quick replacement of the fixture, convenient detection and observation, and a plurality of workstations can be set on the test bench, thereby improving the detection efficiency and meeting the needs of sealing detection of multiple products in batch production.

Description

Technical field:

[0001] The invention relates to the field of automobile parts production and processing, and mainly to an automobile parts sealing detection device. Background technology:

[0002] The sealing test of automobile parts is very important. If the sealing of automobile parts is not good enough, the internal oil and water will penetrate into other parts, which is very dangerous. If the sealing or waterproofness of a small part is not up to standard, it will cause the whole system to collapse. Therefore, the sealing of automobile parts must be fully inspected before leaving the factory.

[0003] The existing sealing detection device has a simple structure. Although it adopts a water vapor bubbling observation detection method and a fixture-type fixed compression sealing method, the lifting of the test bench in the existing structure is directly performed in the vertical direction by a cylinder. The lifting of the test bench requires a lot of power and also requires guidance. The fixture also needs to be fixed, and the test bench plate is too obstructed when it is instantly put into water, thereby affecting the stability of the entire fixture. Furthermore, the corresponding drive above the direct lifting test water tank must be installed, and it requires a corresponding fixed beam to be installed above the water tank, which occupies the space above the water tank. It is not convenient for the replacement of the fixture and the later observation of the detection, and the size of the workpiece to be detected is limited by the driving piston rod. The versatility of the fixture is small, thereby affecting the detection range of the sealing detection. Summary of the invention:

[0004] The purpose of the present invention is to make up for the defects of the existing technology and provide an automobile parts sealing detection device, which adopts a parallelogram lifting mechanism, has good stability during the lifting process, and has a large working space on the test bench, thereby expanding the universal performance of the fixture tooling, saving space, and making it easy and quick to replace the fixture and convenient for detection and observation.

[0005] The present invention is achieved through the following technical solutions:

[0006] A sealing detection device for automobile parts comprises a frame, on which a trough body is mounted, and is characterized in that a translationally movable lifting test bench is installed in the trough body, a fixed detection fixture corresponding to the part to be detected is placed on the table top of the test bench, and the lifting of the test bench is driven by a platform cylinder at one end thereof, the extended end of the piston rod of the platform cylinder is set downward, and the end of the piston rod is hingedly connected to one end of the test bench, a fixing ear is installed at the end of the cylinder body at the upper end of the platform cylinder, and the fixing ear is rotatably mounted on a fixing frame on one side of the trough body through a rotating shaft, and the bottom ends of both ends of the test bench are hinged with a support frame, and the bottom end of the support frame is hinged in the trough body.

[0007] The test bench is provided with openings arranged at intervals, a rubber pad matching with the test bench is fixed on the test bench surface, the rubber pad is provided with through holes matching with the openings, an articulated seat hingedly connected to the platform cylinder piston rod is installed on the table surface of the driving end of the test bench, and the end of the driving end is horizontally facing the limit column on the inner wall of the trough body.

[0008] The support frame includes two vertical rods, which are connected by a cross rod arranged at intervals. The ends of the vertical rods are respectively provided with hinge ears, and the vertical rods are inclined, and the inclination direction is from top to bottom toward the driving end. The hinge ears are hinged to the hinge supports distributed on the test bench and the bottom end surface of the trough body through pins.

[0009] The fixed detection fixtures respectively include a base plate, both ends of which are provided with upper fixed plates via fixed columns, the base plate is provided with detection stations arranged at intervals, the detection stations are respectively provided with fixing pads and positioning pins or positioning holes for fixing the bottom end of the sealing part to be detected, and a liftable pressure head for pressing the top end of the sealing part to be detected is respectively provided above the detection stations, a rubber block is installed on the bottom end surface of the pressure head, the lifting and lowering of the pressure head is driven by a pressing cylinder above it, and the cylinder bodies of the pressing cylinders are respectively fixedly installed on the upper fixed plate.

[0010] An air guide hole connected to the part to be inspected is provided in the middle of each corresponding inspection station on the base plate, and an air guide channel connected to the air guide hole is provided on one side of the base plate. An air inlet nozzle is installed at the air inlet of the air guide channel, and the air inlet nozzle is connected to an air intake branch pipe through a pipeline. The air intake branch pipes are all connected to an air intake main pipe, and the air intake end of the air intake main pipe is connected to the air source connector through a joint.

[0011] A sealing cylinder for sealing the multi-outlet to-be-detected parts is also installed on the bottom plate, a sealing plate is installed at the end of the piston rod of the sealing cylinder, and a sealing gasket is installed on the sealing plate.

[0012] A liftable marking assembly for marking the inspected parts is also provided above the inspection station. The marking assembly includes a marking cylinder arranged vertically downward. The cylinder end of the marking cylinder is fixed on the bottom end surface of the upper fixed plate, and a marking head is installed on the protruding end of the piston rod of the marking cylinder.

[0013] A heating tube is installed on one side wall of the tank body, and a liquid level sensor is installed on the other side wall.

[0014] A placement plate for conveniently placing the to-be-detected parts is provided on the upper end surface of one side of the trough body, and a stainless steel protective plate is covered on the placement plate.

[0015] A control cabinet is installed at one end of the fixing frame, and a controller and a pressure regulation control system for each cylinder are installed in the control cabinet. A switch button, an indicator light and an alarm are provided on the door panel of the control cabinet. A vertically arranged pipe is installed on an outer side of the control cabinet, and a plurality of spaced-apart air source connectors are installed on the pipe.

[0016] The principle is: the test bench adopts a parallelogram lifting mechanism, and can assist in lifting under the action of gravity of the entire test bench. The stability during the lifting process is good, and the drive can be at one end of the trough body. The lifting adopts a slow translational lifting, thereby avoiding excessive obstruction when the test bench is directly put into water, thereby affecting the stability of the tooling fixture, and there is only one test bench on the trough body, without other fixing and auxiliary devices, so the working space on the test bench is large, thereby expanding the universal performance of the fixture, saving space, and convenient and quick replacement of the fixture, convenient detection and observation, and a few more workstations can be set on the test bench, thereby improving the detection efficiency and meeting the needs of sealing detection of multiple products in mass production.

[0017] Furthermore, in the present application, the design of the openings on the test bench can, on the one hand, be used to reduce the weight of the entire test bench, and on the other hand, water can emerge from the openings when entering the water, so that the water resistance of the test bench is small and the stability is good. The setting of the rubber pad on the test bench can increase the friction between the bottom end surface of the fixed detection fixture in the water, thereby ensuring the stability of the fixed detection fixture during continuous operation. The design of the limit column at one end of the test bench, because the platform cylinder will tilt to a certain extent during the driving process, the test bench has a certain inertia when it is retracted, and the limit column can ensure the reset of the test bench.

[0018] The support frame is a planar structure composed of vertical bars and horizontal bars, which matches the width of the test bench, has better supporting performance and a more stable structure.

[0019] Furthermore, the fixed detection fixture in the present application is an independent structure, which is separated from the test bench device. When in use, the corresponding fixture is directly placed on the test bench and connected to the corresponding air source. When clamping, the test piece is fixed by a fixing pad and a positioning pin or a positioning hole, and the upper end is clamped by the pressure head of the clamping cylinder. The clamping is convenient and fast, saving time and effort, and meeting the needs of rapid batch testing.

[0020] Furthermore, the bottom plate is provided with air guide holes, which can be used to inflate the inspected part. On the one hand, it is convenient to observe whether bubbles are continuously generated, so as to determine whether the product is leaking. On the other hand, the product can be inflated and pressure maintained, and then automatically detected by the pressure detection device to see whether the sealing performance can meet the requirements under a certain pressure. The corresponding structure can then be determined by whether the corresponding alarm sounds. The combination of intelligent and human aspects has higher accuracy and a wider detection range. Moreover, when replacing the fixture, it is only necessary to plug and disassemble the corresponding air source interface.

[0021] Furthermore, corresponding fixtures are provided according to different automobile parts products, and corresponding sealing cylinders can be provided on the bottom plate of the fixture according to the needs.

[0022] Furthermore, in order to facilitate marking for inspection, a marking component can also be installed in the present application to mark holes on qualified parts. On the one hand, this facilitates production and processing operations and avoids confusion. On the other hand, it is easy to enter the market for direct observation to see whether it has passed the inspection.

[0023] Furthermore, a heating tube can be arranged in the tank body of the present application, and the water in the tank body can be heated as needed to meet the requirements of sealing detection under certain temperature conditions. The liquid level sensor in the tank body senses whether there is water in the tank. The heating tube can be started to heat only when there is water. If there is no water, the water will not dry burn and the corresponding water level indicator light will not light up.

[0024] Furthermore, the placement plate on one side of the tank body facilitates placement of the parts to be tested and facilitates manual operation.

[0025] Furthermore, the above structure is controlled by a controller to meet the needs of intelligent automatic detection. By controlling the switch buttons, indicator lights and alarms on the door panel of the control cabinet, one-touch operation is achieved, which is convenient for observing and operating the corresponding programs.

[0026] The advantages of the present invention are:

[0027] The present invention has a reasonable structural design and adopts a parallelogram lifting mechanism. It has good stability during the lifting process and a large working space on the test bench, thereby expanding the universal performance of the fixture and tooling, saving space, and making it convenient and quick to replace the fixture and convenient to detect and observe. In addition, several more workstations can be set on the test bench, thereby improving the detection efficiency and meeting the needs of sealing detection of multiple products in batch production. Description of the drawings:

[0028] Figure 1 It is a schematic diagram of the structure of the present invention.

[0029] Figure 2 for Figure 1 Schematic diagram of the structure of the fixed detection fixture.

[0030] Figure 3 for Figure 1 Structural schematic diagram of the local structure from another angle.

[0031] Figure 4 A schematic diagram of the structure of the support frame.

[0032] Figure 5 Schematic diagram of the structure of a fixed detection fixture with a marking component.

[0033] Description of the accompanying drawings:

[0034] 1-frame, 2-tank, 3-test bench, 4-fixed detection fixture, 4-1 bottom plate, 4-2 upper fixed plate, 4-3 fixed pad, 4-4 positioning pin, 4-5 pressure head, 4-6 rubber pad, 4-7 clamping cylinder, 5-platform cylinder, 6-fixed ear, 7-fixed frame, 8-support frame, 8-1-vertical rod, 8-2-cross rod, 8-3-hinge ear, 9-opening, 10-rubber pad, 11-limiting column, 12-air guide hole, 13-air guide channel, 14-intake branch pipe, 15-intake main pipe, 16-air source connector, 17-sealing cylinder, 18-marking component, 18-1-marking cylinder, 18-2-marking head, 19-placement plate, 20-control cabinet, 21-pipeline, 23-heating tube. Specific implementation method:

[0035] See attached Figure 1-5 .

[0036] A sealing detection device for automobile parts, comprising a frame 1, a tank body 2 is mounted on the frame 1, and the characteristics are: a translationally movable lifting test bench 3 is installed in the tank body 2, and the test bench 3 is provided with openings 9 arranged at intervals, a rubber pad 10 matched with it is fixed on the table of the test bench 3, and the rubber pad 10 is provided with a through hole matched with the opening 9, and an articulated seat hingedly connected to the piston rod of the platform cylinder 5 is installed on the table of the driving end of the test bench 3, and the end of the driving end is horizontally facing the limit column 11 of the inner side wall of the tank body;

[0037] A fixed detection fixture 4 corresponding to the part to be tested is placed on the table top of the test bench 3. The lifting of the test bench 3 is driven by the platform cylinder 5 at one end thereof. The extended end of the piston rod of the platform cylinder 5 is set downward, and the end of the piston rod is hingedly connected to one end of the test bench 3. A fixed ear 6 is installed at the end of the cylinder body of the upper end of the platform cylinder 5. The fixed ear 6 is rotatably installed on a fixed frame 7 on one side of the trough body through a rotating shaft. The bottom ends of both ends of the test bench 3 are hinged with a support frame 8, and the bottom end of the support frame 8 is hinged in the trough body 2. The support frame 8 respectively includes two vertical rods 8-1, and the two vertical rods 8-1 are connected by a cross rod 8-2 arranged at intervals. The ends of the vertical rods 8-1 are respectively provided with hinged ears 8-3, and the vertical rods are tilted, and the tilting direction is from top to bottom toward the driving end. The hinged ears 8-3 are hinged to the hinged supports distributed on the test bench 3 and the bottom end surfaces of the trough body 2 through pins.

[0038] The fixed detection fixture 4 includes a base plate 4-1, and upper fixed plates 4-2 are arranged at both ends of the base plate 4-1 through fixed columns. There are detection stations arranged at intervals on the base plate 4-1, and fixed pads 4-3 and positioning pins or positioning holes 4-4 for fixing the bottom end of the sealed part to be detected are installed on the detection stations. A liftable pressure head 4-5 for pressing the top of the sealed part to be detected is installed directly above the detection station, and a rubber block 4-6 is installed on the bottom end surface of the pressure head 4-5. The lifting and lowering of the pressure head 4-5 is driven by the pressing cylinder 4-7 above it, and the cylinder body of the pressing cylinder 4-7 is fixedly installed on the upper fixed plate 4-2. An air guide hole 12 connected to the part to be inspected is provided in the middle of each corresponding inspection station on the base plate 4-1, and an air guide channel 13 connected to the air guide hole is provided on one side of the base plate 4-1. An air intake nozzle is installed at the air inlet of the air guide channel 13, and the air intake nozzle is connected to an air intake branch pipe 14 through a pipeline. The air intake branch pipes 14 are all connected to an air intake main pipe 15, and the air intake end of the air intake main pipe 15 is connected to an air source connector 16 through a connector.

[0039] The bottom plate 4 - 1 is also provided with a sealing cylinder 17 for sealing the multi-outlet test piece. The piston rod end of the sealing cylinder 17 is provided with a sealing plate, and a sealing gasket is provided on the sealing plate.

[0040] A marking assembly 18 which can be raised and lowered and is used to mark the inspected parts respectively is also arranged above the inspection station. The marking assembly 18 includes a marking cylinder 18-1 which is arranged vertically downward. The cylinder end of the marking cylinder 18-1 is fixed on the bottom end surface of the upper fixed plate 4-2, and a marking head 18-2 is installed on the protruding end of the piston rod of the marking cylinder.

[0041] A heating tube 23 is installed on one side wall of the tank body 2, and a liquid level sensor is installed on the other side wall.

[0042] A placement plate 19 for conveniently placing the to-be-detected parts is provided on the upper end surface of one side of the tank body 2, and a stainless steel protective plate is covered on the placement plate 19.

[0043] A control cabinet 20 is installed at one end of the fixing frame 7, and a controller and a pressure regulating control system for each cylinder are installed in the control cabinet 20. A switch button, an indicator light and an alarm are provided on the door panel of the control cabinet 20. A vertically arranged pipe 21 is installed on an outer side of the control cabinet 20, and a plurality of spaced-apart air source connectors 16 are installed on the pipe 21.

[0044] The specific use process of the above structure during detection is: first, the corresponding fixed detection fixture is arranged on the detection station on the test bench, and then water is introduced into the tank body. According to whether the temperature is required, the corresponding heating and temperature control operations are performed, and then the parts to be detected are clamped and fixed on the corresponding detection stations one by one, and then they are clamped and fixed by the clamping cylinder, and the test bench is driven down by the platform cylinder to sink the test bench and the parts to be detected into the water tank for sealing test. On the one hand, the test can directly observe whether bubbles are continuously generated, so as to judge whether the product is leaking. On the other hand, the product can be inflated and pressure-maintained, and then the pressure detection device can be used for automatic detection to see whether the sealing performance can meet the requirements under a certain pressure. Then, the corresponding structure can be obtained by whether the corresponding alarm alarms. The intelligent and human aspects are combined, the accuracy is higher, the detection range is wider, and when replacing the fixture, it is only necessary to plug and disassemble the corresponding air source interface; after the detection, it is marked, and then it is retracted by the platform cylinder, and the test bench is reset. During the lifting process, the cylinder is slightly tilted, and then the tested parts to be detected are distinguished according to the markings, and they are scrapped or the next step is performed.

[0045] Through the improvement, the problem of low versatility of the fixture has been solved, space has been saved, the fixture and equipment are separated, the air pump does not need to be replaced, and it is controlled by cyclic compression and sealing, computer control, automatic, gas introduction, and controller. It also has the function of marking. On the same platform, different fixtures can detect different products. Unqualified ones will bubble and the machine will alarm, and qualified ones will have a hole punched.

Claims

1. A sealing detection device for automobile parts, comprising a frame (1), a tank (2) being mounted on the frame (1), characterized in that: A translationally movable lifting test bench (3) is installed in the tank body (2), and a fixed detection fixture (4) corresponding to the to-be-tested piece is placed on the table of the test bench (3). The lifting of the test bench (3) is driven by a platform cylinder (5) at one end thereof, and the extended end of the piston rod of the platform cylinder (5) is arranged downward, and the end of the piston rod is hingedly connected to one end of the test bench (3). A fixing ear (6) is installed at the end of the cylinder body of the upper end of the platform cylinder (5), and the fixing ear (6) is rotatably mounted on a fixing frame (7) on one side of the tank body through a rotating shaft. The bottom ends of both ends of the test bench (3) are hingedly connected to a support frame (8), and the bottom end of the support frame (8) is hingedly connected in the tank body (2); The test bench (3) is provided with openings (9) arranged at intervals, a rubber pad (10) matching the openings (9) is fixed on the table top of the test bench (3), and a through hole matching the openings (9) is provided on the rubber pad (10), and an articulated seat hingedly connected to the piston rod of the platform cylinder (5) is installed on the table top of the driving end of the test bench (3), and the end of the driving end is horizontally facing the limit column (11) on the inner side wall of the tank body; The support frame (8) comprises two vertical rods (8-1), the two vertical rods (8-1) are connected by a horizontal rod (8-2) arranged at intervals, the ends of the vertical rods (8-1) are respectively provided with hinge ears (8-3), and the vertical rods are arranged tilted, and the tilting direction is tilted from top to bottom towards the driving end, and the hinge ears (8-3) are hinged to the hinge supports distributed on the bottom end surface of the test bench (3) and the tank body (2) through pins.

2. The automobile parts sealing detection device according to claim 1, characterized in that: The fixed detection fixture (4) comprises a bottom plate (4-1), and upper fixed plates (4-2) are arranged at both ends of the bottom plate (4-1) via fixed columns. The bottom plate (4-2) is provided with detection stations arranged at intervals, and the detection stations are respectively provided with fixed pads (4-3) and positioning pins or positioning holes (4-4) for fixing the bottom end of the sealing member to be detected. A liftable pressure head (4-5) for pressing the top end of the sealing member to be detected is respectively provided above the detection station, and a rubber block (4-6) is installed on the bottom end surface of the pressure head (4-5). The lifting and lowering of the pressure head (4-5) is driven by a pressing cylinder (4-7) above the pressure head, and the cylinder body of the pressing cylinder (4-7) is respectively fixedly installed on the upper fixed plate (4-2).

3. The automobile parts sealing detection device according to claim 2, characterized in that: An air guide hole (12) connected to the part to be tested is provided in the middle of each corresponding inspection station on the base plate (4-1); an air guide channel (13) connected to the air guide hole is provided on one side of the base plate (4-1); an air inlet nozzle is installed at the air inlet of the air guide channel (13); the air inlet nozzle is connected to an air inlet branch pipe (14) through a pipeline; the air inlet branch pipes (14) are connected to an air inlet main pipe (15); and the air inlet end of the air inlet main pipe (15) is connected to an air source connector (16) through a connector.

4. The automobile parts sealing detection device according to claim 2, characterized in that: A sealing cylinder (17) for sealing the multi-outlet test piece is also mounted on the bottom plate (4-1), and a sealing plate is mounted on the end of the piston rod of the sealing cylinder (17), and a sealing gasket is mounted on the sealing plate.

5. The automobile parts sealing detection device according to claim 2, characterized in that: A marking assembly (18) which can be raised and lowered and is used to mark the inspected parts respectively is also arranged above the inspection station. The marking assembly (18) comprises a marking cylinder (18-1) arranged vertically downward, the cylinder body end of the marking cylinder (18-1) is fixed to the bottom end surface of the upper fixed plate (4-2), and the protruding end of the piston rod of the marking cylinder is provided with a marking head (18-2).

6. The automobile parts sealing detection device according to claim 1, characterized in that: A heating tube is installed on one side wall of the tank body (2), and a liquid level sensor is installed on the other side wall.

7. The automobile parts sealing detection device according to claim 2, characterized in that: A placement plate (19) for conveniently placing the to-be-tested component is provided on an upper end surface of one side of the trough body (2), and a stainless steel protective plate is covered on the placement plate (19).

8. The automobile parts sealing detection device according to claim 1, characterized in that: A control cabinet (20) is installed at one end of the fixing frame (7), and a controller and a pressure regulating control system for each cylinder are installed in the control cabinet (20). A switch button, an indicator light and an alarm are provided on a door panel of the control cabinet (20). A vertically arranged pipeline (21) is installed on an outer side of the control cabinet (20), and a plurality of spaced-apart air source connectors (16) are installed on the pipeline (21).

Images