Sealing performance detection device for automobile pipeline

Abstract

The utility model relates to a sealing performance detection device for an automobile pipeline, and belongs to the field of sealing performance detection equipment, the sealing performance detection device comprises a rack, and the rack comprises a water tank, a detection clamp and a lifting mechanism used for driving the detection clamp to lift; the detection clamp comprises a detection bottom plate, a supporting seat installed on the detection bottom plate, an inflation head used for abutting against one end of the automobile pipeline, a sealing head used for abutting against the other end of the automobile pipeline and a driving air cylinder used for driving the sealing head to move. The supporting base is provided with a first supporting plate, a second supporting plate and a pressing assembly located between the first supporting plate and the second supporting plate, and the first supporting plate is provided with a first supporting groove used for supporting an automobile pipeline. The second supporting plate is provided with a second supporting groove used for supporting the automobile pipeline. The pressing assembly comprises a pressing stand column and a pressing plate which is rotationally installed on the pressing stand column and used for pressing the automobile pipeline. The automobile pipeline sealing performance detection device has the effect of improving the situation that the detection efficiency is influenced by movement of the automobile pipeline in the sealing performance detection process.

Description

Technical Field

[0001] The present application relates to the field of sealing performance testing equipment, and in particular to a sealing performance testing device for automobile pipelines. Background Art

[0002] Automobile pipes are an important part of the car. The sealing performance of automobile pipes will directly affect the quality of the car and the safety of driving. Therefore, it is very important to test the sealing performance of automobile pipes.

[0003] The existing device for testing the sealing performance of automobile pipes includes a water tank, a testing fixture for clamping the automobile pipe, and a lifting mechanism for driving the testing fixture to rise and fall. The testing fixture can clamp the automobile pipe and deliver gas into the automobile pipe. A common testing fixture includes a support seat, an inflation head for abutting one end of the automobile pipe, a sealing head for abutting the other end of the automobile pipe, and a driving cylinder for driving the sealing head to move. When testing the sealing performance of the automobile pipe, the automobile pipe is first placed on top of the support seat, and one end of the automobile pipe is abutted against the inflation head so that the gas output by the inflation head can enter the automobile pipe; then, the sealing head is driven by the driving cylinder to abut the other end of the automobile pipe and the opening at the other end of the automobile pipe is sealed; thereafter, the lifting mechanism drives the testing fixture to move into the water tank and delivers gas into the automobile pipe through the inflation head to observe whether there is any leakage in the automobile pipe.

[0004] Regarding the above-mentioned related technologies, the inventors have discovered that when the sealing head seals against one end of the automobile pipe, the automobile pipe is prone to movement, which affects the efficiency of the sealing performance test of the automobile pipe. Utility Model Content

[0005] In order to improve the problem that the automobile pipe is prone to movement when one end of the automobile pipe abuts against the sealing head, thereby affecting the efficiency of the automobile pipe sealing performance detection, the present application provides a sealing performance detection device for an automobile pipe.

[0006] The present application provides a device for detecting the sealing performance of automobile pipelines, which adopts the following technical solutions:

[0007] A device for testing the sealing performance of automobile pipelines, comprising a frame, the frame including a water tank, a testing fixture, and a lifting mechanism for driving the testing fixture to rise and fall; the testing fixture includes a testing base, a support seat mounted on the testing base, an inflation head for abutting one end of the automobile pipeline, a sealing head for abutting the other end of the automobile pipeline, and a driving cylinder for driving the sealing head to move; the support seat has a first support plate, a second support plate, and a clamping assembly located between the first support plate and the second support plate, the first support plate having a first supporting groove for supporting the automobile pipeline; the second support plate having a second supporting groove for supporting the automobile pipeline; the clamping assembly includes a clamping column and a clamping plate rotatably mounted on the clamping column and used for clamping the automobile pipeline.

[0008] By adopting the above technical solution, the automobile pipe is placed in the first support groove and the second support groove of the first support seat and the second support seat, and then the clamping plate of the clamping assembly is rotated to clamp the automobile pipe against the first support seat and the second support seat, and then the sealing head is driven by the driving cylinder to move toward the inflation head, so that the two ends of the automobile pipe are sealed against the inflation head and the sealing head respectively, and finally the detection fixture holding the automobile pipe is driven by the lifting mechanism to be immersed in the water of the water tank to observe whether there is any leakage in the automobile pipe, so as to judge the sealing performance of the automobile pipe. Among them, by arranging the clamping assembly between the first support seat and the second support seat, it is helpful to reduce the probability of the automobile pipe moving when the sealing head is sealed against one end of the automobile pipe, thereby improving the accuracy of the automobile pipe sealing performance detection.

[0009] Optionally, both the first supporting groove and the second supporting groove are V-shaped supporting grooves.

[0010] By adopting the above technical solution, the design of the V-shaped support groove can provide stable support for the automobile pipe, and help improve the adaptability of the first support groove and the second support groove to automobile pipes of different diameters.

[0011] Optionally, the clamping plate has a mounting through hole for cooperating with the clamping column; the clamping plate is provided with a mounting protrusion on the inner edge of the mounting through hole; the clamping column includes a first column fixed to the detection base plate and a threaded column connected to the top end of the first column, the outer diameter of the first column is larger than the outer diameter of the threaded column, and the end face of the first column is provided with a clamping groove for vertical sliding of the mounting protrusion; a locking nut is provided on the threaded column, and the clamping column is also provided with a clamping spring with one end abutting against the locking nut and the other end abutting against the clamping plate.

[0012] By adopting the above technical solution, when the clamping plate is pressed down, the mounting protrusion in the mounting through hole slides vertically in the clamping groove on the end face of the first column. At this time, one end of the outer sleeve of the clamping column abuts against the locking nut and the other end abuts against the clamping spring of the clamping plate, so that the clamping plate always has an upward tendency, which helps to reset the clamping plate.

[0013] Optionally, a locking groove for arranging the mounting protrusion is further provided at the top of the first column; when the mounting protrusion of the clamping plate is located in the locking groove, the projection of the clamping plate on the horizontal plane is staggered with the automobile pipe installed on the support seat.

[0014] By adopting the above technical solution, the mounting protrusion in the mounting through hole is abutted against the locking groove on the end face of the first column, and the clamping plate is limited, so that the clamping plate can clamp the automobile pipe installed on the support seat, ensuring that the sealing performance of the automobile pipe is accurately tested.

[0015] Optionally, the pressing plate is provided with two mounting protrusions at the mounting through hole, and the two mounting protrusions are circumferentially symmetrically arranged.

[0016] By adopting the above technical solution, two mounting protrusions are provided at the mounting through hole, and the two mounting protrusions are arranged symmetrically in the circumferential direction, which helps to improve the stability of the cooperation between the mounting protrusion and the first column and reduce the probability of movement of the automobile pipeline during the sealing performance test.

[0017] Optionally, a support frame is connected to the top of the water tank, and the lifting mechanism is arranged on the support frame; the lifting mechanism includes a lifting seat, a lifting cylinder for driving the lifting seat to rise and fall, a guide rod connected to the lifting seat and arranged vertically, and a guide sleeve installed on the support frame and cooperating with the guide rod.

[0018] By adopting the above technical solution, the structure of the lifting mechanism is disclosed, and the arrangement of the guide rod helps to guide the piston rod of the lifting cylinder, which helps to reduce the probability of the lifting seat tilting during the lifting process.

[0019] Optionally, there are two guide rods, and the two guide rods are arranged axially symmetrically about the axis of the lifting cylinder.

[0020] By adopting the above technical solution, two guide rods are axially symmetrically arranged on the axis of the lifting cylinder, which helps to improve the stability of the guide rods in guiding the driving cylinder and ensure the stable lifting of the lifting seat.

[0021] Optionally, the lifting seat includes a lifting base plate for installing the detection base plate; the lifting base plate is provided with a water passage.

[0022] By adopting the above technical solution, the water passage opening is provided on the lifting base plate, which helps the lifting base plate to be immersed in water smoothly.

[0023] Optionally, the inflation head is provided with an inflation slot for inserting the end of the automobile pipe on the end surface facing the sealing head; the inflation head has an inflation channel connected to the inflation slot.

[0024] By adopting the above technical solution, the provision of the inflation slot facilitates the sealing cooperation between the automobile pipeline and the inflation head, and the provision of the inflation channel on the inflation head enables gas to be output from the inflation head to the automobile pipeline.

[0025] Optionally, the detection base plate is provided with a third support plate on one side of the inflation head close to the sealing head, and the third support plate has a third support groove for supporting the end of the automobile pipeline, and the third support groove is a V-shaped support groove.

[0026] By adopting the above technical solution, the detection base plate is provided with a third support seat on the side of the inflation head close to the sealing head, and the third support seat has a third support groove, which helps to align and seal the automobile pipeline with the inflation head. The third support seat is a V-shaped support groove setting so that the third support seat can adapt to automobile pipelines of different diameters.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. A device for testing the sealing performance of automobile pipes. By disposing a compression assembly between a first support seat and a second support seat, the automobile pipe is compressed into the first and second support grooves of the first and second support seats. This reduces the probability of the automobile pipe moving when the sealing head abuts one end of the automobile pipe, thereby helping to improve the accuracy of automobile pipe sealing performance testing.

[0029] 2. The cooperation between the mounting protrusion in the mounting hole of the compression plate, the compression groove on the end face of the first column, and the compression spring ensures that the compression plate always has a tendency to reset upward during the compression process. The cooperation between the mounting protrusion and the locking groove limits the compression plate, allowing the automobile pipe to be compressed against the first and second support plates, reducing the possibility of the automobile pipe shifting during the sealing performance test.

[0030] 3. By setting the first support groove, the second support groove and the third support groove as V-shaped support grooves, the first support seat, the second support seat and the third support seat can provide stable support for the automobile pipe and can adapt to automobile pipes of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematic diagram of the sealing performance detection device for automobile pipelines in this embodiment.

[0032] Figure 2 It is a schematic diagram of the cooperation between the lifting base plate and the lifting frame in this embodiment.

[0033] Figure 3 It is a schematic diagram of the cooperation between the clamping fixture and the lifting base plate in this embodiment.

[0034] Figure 4 Schematic diagram of the inflation head in this embodiment.

[0035] Figure 5 Schematic diagram of the sealing head in this embodiment.

[0036] Figure 6 Schematic diagram of the first support plate in this embodiment.

[0037] Figure 7 2 is a cross-sectional schematic diagram of the clamping assembly in this embodiment.

[0038] Figure 8 Schematic diagram of the pressing plate in this embodiment.

[0039] Figure 9 Schematic diagram of the compression column in this embodiment.

[0040] Explanation of reference numerals: 1, frame; 11, water tank; 12, support frame; 2, detection fixture; 21, detection base plate; 22, support seat; 221, first support plate; 222, second support plate; 223, first support groove; 224, second support groove; 23, inflation head; 231, inflation slot; 232, inflation channel; 24, sealing head; 241, sealing slot; 25, driving cylinder; 26, pressing assembly; 261, pressing column; 262, pressing plate; 2621, Mounting through hole; 2622, mounting protrusion; 263, first column; 264, threaded column; 265, clamping slide; 266, locking nut; 267, clamping spring; 268, locking groove; 27, third support plate; 271, third support groove; 281, abutting slope; 282, arc abutting surface; 3, lifting mechanism; 31, lifting seat; 311, lifting base plate; 312, lifting frame; 313, water passage; 32, lifting cylinder; 33, guide rod; 34, guide sleeve. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-9 This application is described in further detail.

[0042] The embodiment of the present application discloses a sealing performance detection device for automobile pipelines. Figure 1A sealing performance testing device for automotive pipelines includes a frame 1. Frame 1 comprises a water tank 11, a testing fixture 2, a support frame 12 connected to water tank 11, and a lifting mechanism 3 disposed on support frame 12 and used to drive the testing fixture 2 up and down. Water tank 11 is a rectangular parallelepiped structure with one end open and facing upward. Support frame 12 is connected to the open end of water tank 11 and extends vertically upward.

[0043] Reference Figure 1 and Figure 2 A lifting mechanism 3 is arranged on the side of the support frame 12 away from the water tank 11. The lifting mechanism 3 includes a lifting seat 31, a lifting cylinder 32 installed on the side of the support frame 12 away from the water tank 11 and used to drive the lifting seat 31 to rise and fall, a guide rod 33 connected to the lifting seat 31 and arranged vertically, and a guide sleeve 34 installed on the support frame 12 and cooperating with the guide rod 33. Among them, the piston rod of the lifting cylinder 32 extends vertically downward and is connected to the top surface of the lifting seat 31. There are two guide rods 33, and the two guide rods 33 are arranged axially symmetrically about the axis of the lifting cylinder 32. The lifting seat 31 includes a lifting base plate 311 and a lifting frame 312 connecting the lifting base plate 311 and the lifting cylinder 32. Among them, the lifting base plate 311 is fixed to the bottom of the lifting frame 312 by screws. Among them, the lifting base plate 311 is provided with multiple water passages 313.

[0044] Reference Figure 3 、 Figure 4 and Figure 5 The inspection fixture 2 includes an inspection base plate 21 arranged on the top surface of the lifting base plate 311, a support base 22 installed on the top surface of the inspection base plate 21, an inflation head 23 for abutting against one end of the automobile pipe, a sealing head 24 for abutting against the other end of the automobile pipe, and a driving cylinder 25 for driving the sealing head 24 to move toward the inflation head 23. Among them, the inflation head 23 has an inflation slot 231 for inserting the end of the automobile pipe on the end surface facing the sealing head 24, and the sealing head 24 has a sealing slot 241 for inserting the end of the other end of the automobile pipe on the end surface facing the inflation head 23. The inflation head 23 also has an inflation channel 232 connected to the inflation slot 231. The end of the inflation head 23 facing away from the sealing head 24 is connected to the gas supply device in the factory. The gas output by the gas supply device is transported to the automobile pipe through the inflation channel 232, and the gas is sealed in the automobile pipe. In this embodiment, the top surface of the detection base plate 21 is provided with four inflation heads 23 and four sealing heads 24 that cooperate with the inflation heads 23 to clamp the automobile pipes.

[0045] Reference Figure 3 and Figure 6, the support seat 22 is arranged between the inflation head 23 and the sealing head 24. The support seat 22 includes a first support plate 221, a second support plate 222 and a clamping assembly 26. Among them, the first support plate 221 has a first support groove 223 for supporting the automobile pipe, and the second support plate 222 has a second support groove 224 for supporting the automobile pipe. The detection base plate 21 is also provided with a third support plate 27 on the side of the inflation head 23 close to the sealing head 24. The third support plate 27 has a third support groove 271 for supporting the end of the automobile pipe. The first support groove 223, the second support groove 224 and the third support groove 271 are all V-shaped support grooves. The V-shaped support groove includes relatively arranged abutment slopes 281 and an arc abutment surface 282 connected to the bottom of the two relatively arranged abutment slopes 281.

[0046] Reference Figure 3 The pressing assembly 26 is located between the first support plate 221 and the second support plate 222 .

[0047] Reference Figure 7 and Figure 8 The compression assembly 26 includes a compression column 261 and a compression plate 262 rotatably mounted on the compression column 261 and used to compress the automobile pipe. The compression plate 262 has a mounting hole 2621 for mating with the compression column 261, and two mounting protrusions 2622 are arranged on the inner edge of the mounting hole 2621 of the compression plate 262. The two mounting protrusions 2622 are arranged symmetrically in the circumferential direction.

[0048] Reference Figure 7 and Figure 9 The compression column 261 includes a first column 263 and a threaded column 264 connected to the top of the first column 263. The outer diameter of the first column 263 is larger than that of the threaded column 264. A compression groove 265 is defined on the end surface of the first column 263 for the vertical sliding movement of the mounting protrusion 2622. A locking nut 266 is provided on the threaded column 264. The compression column 261 is sleeved with a compression spring 267, one end of which abuts the locking nut 266 and the other end abuts the compression plate 262. The top of the first column 263 also has a locking groove 268 for the mounting protrusion 2622. When the mounting protrusion 2622 of the compression plate 262 is located in the locking groove 268, the horizontal projection of the compression plate 262 is aligned with the automobile pipe mounted on the support base 22, thereby compressing the automobile pipe.

[0049] The implementation principle of the sealing performance detection device of an automobile pipeline in an embodiment of the present application is as follows: in the process of performing sealing performance detection on the automobile pipeline, the automobile pipeline is first placed on the first support plate 221, the second support plate 222 and the third support plate 27, and the pressing plate 262 is rotated so that the mounting protrusion 2622 on the pressing plate 262 cooperates with the locking groove 268 on the first column 263 to press the automobile pipeline, and then the sealing head 24 is driven to slide toward the inflation head 23 by the driving cylinder 25, so that the two ends of the automobile pipeline are respectively sealed against the inflation head 23 and the sealing head 24, and finally, the detection fixture 2 holding the automobile pipeline is driven to descend by the lifting cylinder 32 and immersed in the water tank 11 to observe whether bubbles are generated on the surface of the automobile pipeline, so as to judge the sealing performance of the above-mentioned automobile pipeline.

[0050] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A sealing performance detection device for automobile pipelines, characterized in that: The invention comprises a frame (1), wherein the frame (1) comprises a water tank (11), a detection fixture (2), and a lifting mechanism (3) for driving the detection fixture (2) to move up and down; the detection fixture (2) comprises a detection base plate (21), a support seat (22) mounted on the detection base plate (21), an inflation head (23) for abutting one end of an automobile pipeline, a sealing head (24) for abutting the other end of the automobile pipeline, and a driving cylinder (25) for driving the sealing head (24) to move; the support seat (22) has a first support plate ( 221), a second support plate (222) and a pressing assembly (26) located between the first support plate (221) and the second support plate (222), wherein the first support plate (221) has a first support groove (223) for supporting an automobile pipe; the second support plate (222) has a second support groove (224) for supporting an automobile pipe; the pressing assembly (26) includes a pressing column (261) and a pressing plate (262) rotatably mounted on the pressing column (261) and used for pressing the automobile pipe.

2. The sealing performance detection device for automobile pipelines according to claim 1, characterized in that: The first supporting groove (223) and the second supporting groove (224) are both V-shaped supporting grooves.

3. The sealing performance detection device for automobile pipelines according to claim 1, characterized in that: The pressing plate (262) has a mounting through hole (2621) for cooperating with the pressing column (261); the pressing plate (262) is provided with a mounting protrusion (2622) on the inner edge of the mounting through hole (2621); the pressing column (261) comprises a first column (263) fixed to the detection base plate (21) and a threaded column (264) connected to the top of the first column (263); the first column (263) is provided with a mounting protrusion (2622) on the inner edge of the mounting through hole (2621); the pressing column (261) comprises a first column (263) fixed to the detection base plate (21) and a threaded column (264) connected to the top of the first column (263); 63) has an outer diameter greater than that of the threaded column (264), and the end surface of the first column (263) is provided with a clamping groove (265) for the vertical sliding of the mounting protrusion (2622); a locking nut (266) is provided on the threaded column (264), and the clamping column (261) is also provided with a clamping spring (267) with one end abutting against the locking nut (266) and the other end abutting against the clamping plate (262).

4. The sealing performance detection device for automobile pipelines according to claim 3, characterized in that: The top end of the first column (263) is also provided with a locking groove (268) for arranging the mounting protrusion (2622); when the mounting protrusion (2622) of the pressing plate (262) is located in the locking groove (268), the projection of the pressing plate (262) on the horizontal plane is staggered with the automobile pipe installed on the support seat (22).

5. The sealing performance detection device for automobile pipelines according to claim 3, characterized in that: The pressing plate (262) is provided with two mounting protrusions (2622) at the mounting through hole (2621), and the two mounting protrusions (2622) are symmetrically arranged in the circumferential direction.

6. The sealing performance detection device for automobile pipelines according to claim 1, characterized in that: The top of the water tank (11) is connected to a support frame (12), and the lifting mechanism (3) is arranged on the support frame (12); the lifting mechanism (3) includes a lifting seat (31), a lifting cylinder (32) for driving the lifting seat (31) to move up and down, a guide rod (33) connected to the lifting seat (31) and arranged vertically, and a guide sleeve (34) installed on the support frame (12) and cooperating with the guide rod (33).

7. The sealing performance detection device for automobile pipelines according to claim 6, characterized in that: There are two guide rods (33), and the two guide rods (33) are arranged axially symmetrically about the axis of the lifting cylinder (32).

8. The sealing performance detection device for automobile pipelines according to claim 6, characterized in that: The lifting seat (31) comprises a lifting base plate (311) for mounting the detection base plate (21); the lifting base plate (311) is provided with a water passage (313).

9. The sealing performance detection device for automobile pipelines according to claim 1, characterized in that: The inflation head (23) is provided with an inflation slot (231) for inserting the end of the automobile pipeline on the end surface facing the sealing head (24); the inflation head (23) has an inflation channel (232) communicating with the inflation slot (231).

10. The sealing performance detection device for automobile pipelines according to claim 5, characterized in that: The detection base plate (21) is provided with a third support plate (27) on one side of the inflation head (23) close to the sealing head (24); the third support plate (27) has a third support groove (271) for supporting the end of the automobile pipeline; the third support groove (271) is a V-shaped support groove.

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