Self-adaptive flexible sealing device for air tightness detection of water cooling plate

Abstract

The utility model relates to the technical field of air tightness detection of water-cooling plates, in particular to a self-adaptive flexible sealing device for air tightness detection of a water-cooling plate, which comprises a sealing cup and a self-adaptive mechanism. The head part of the sealing cup is provided with a detection port for the water nozzle to enter, and the tail part is communicated with a ventilation seat which is fixedly connected with the sealing cup; the self-adaptive mechanism comprises a fixing frame and a screw rod, the ventilation seat is arranged in a slide way of the fixing frame in a sliding mode, a through hole communicated with the slide way is formed in one side of the fixing frame, the screw rod penetrates through the through hole in a sliding mode and then abuts against the ventilation seat, fastening nuts are arranged at the two ends of the screw rod, and the screw rod is sleeved with springs which are oppositely arranged; one ends of the two springs abut against the two fastening nuts respectively, and the other ends of the two springs abut against the outer wall and the inner wall of the fixing frame respectively. The automatic water-cooling plate feeding device can effectively absorb discharging deviation of a mechanical arm and water nozzle manufacturing tolerance, greatly reduces strict requirements for automatic positioning accuracy, and is compatible with water-cooling plates of different batches and different models.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water -cooled plate air -tight detection technical field, especially relate to a kind of for water-cooled plate air-tightness detection self-adapting flexible sealing device. BACKGROUND

[0002] In the production process of new energy automobile battery water-cooled plate, 100% air-tightness detection is the key link to ensure product quality and safety. When detecting, the gas pipe joint of test equipment needs to be connected with the water nozzle of water-cooled plate quickly and reliably to form a seal, and then the inflation pressure test is carried out.

[0003] At present, the common sealing method generally has two kinds: 1. Using rigid sealing joint: using threaded connection or hard plastic / metal joint with O-ring for sealing; This method requires high consistency of water nozzle processing size and high repeatability of mechanical hand positioning when placing water-cooled plate to detection station. Once there is manufacturing tolerance in water nozzle length, or there is slight deviation in flatness and height position of water nozzle after mechanical hand placing, it is easy to cause sealing not to be strict, and leakage occurs. This leakage is not a product leakage itself, but a "misjudgment" caused by tooling sealing failure, which greatly affects detection efficiency and accuracy. 2. Manual sealing: tightened or pressed by operator; Although this can compensate for the deviation to some extent, it is low in efficiency, high in labor cost, and cannot be integrated into fully automatic production line. Inconsistent manual operation will also introduce new uncertainty.

[0004] Therefore, there is an urgent need in the field for a flexible sealing solution that can automatically adapt to the position deviation of water nozzle (the length of water-cooled plate varies, which will cause deviation of water nozzle position) to eliminate false detection and leakage in the test process, and improve the automation degree and detection reliability of production line. UTILITY MODEL CONTENTS

[0005] To solve the problems in the prior art, the utility model provides a self-adapting flexible sealing device for water-cooled plate air-tightness detection, and the purpose and technical problem thereof are realized by adopting the following technical scheme.

[0006] According to the self-adapting flexible sealing device for water-cooled plate air-tightness detection provided by the utility model, the first part of the sealing cup is provided with a detection port for the water nozzle to enter, and the tail part is communicated with a ventilation seat, and the ventilation seat is fixedly connected with the sealing cup; the self-adapting mechanism includes a fixed frame and a screw rod, the ventilation seat is slidingly arranged in the slide way of the fixed frame, one side of the fixed frame is provided with a through hole communicated with the slide way, the screw rod is slidingly penetrated through the through hole and abuts against the ventilation seat, the both ends of the screw rod are provided with fastening nuts, and the screw rod is provided with oppositely arranged springs, one end of each spring abuts against the two fastening nuts, and the other end of each spring abuts against the outer wall and the inner wall of the fixed frame.

[0007] Further, the screw rod comprises a sliding part and screw threads symmetrically arranged on both sides of the sliding part, the sliding part is in sliding contact with the inner wall of the through hole, and two fastening nuts are respectively screwed on the screw threads on both sides of the sliding part.

[0008] Further, the venting seat and the sealing cup are detachably connected.

[0009] Further, symmetrically distributed guide sliding blocks are arranged between the sealing cup and the fixing frame, both of the guide sliding blocks are fixed to the fixing frame and form a guide sliding groove for limiting the venting seat between the two guide sliding blocks.

[0010] Further, the sealing cup comprises a cup body provided with a sealing cavity, a piston slidingly arranged in the sealing cavity of the cup body, a gas joint, a tension rubber sleeve and a buffer block, the piston is coaxially arranged with the cup body, one side of the piston is provided with a placing cavity, the other side of the piston is provided with a venting pipe, one end of the venting pipe is communicated with the placing cavity, the other end of the venting pipe penetrates through the cup body and is communicated with the venting seat, the buffer block is annular and arranged at the detection port of the cup body, the tension rubber sleeve is arranged between the buffer block and the piston and abuts against both the buffer block and the piston, the gas joint is communicated with a gas channel arranged in the cup body in the axial direction, and the other end of the gas channel is communicated with the gap between the piston and the inner wall of the sealing cavity of the cup body.

[0011] Further, a sealing cover matched with the shape of the buffer block is arranged at the detection port of the cup body, and the sealing cover is arranged at the end of the buffer block away from the tension rubber sleeve.

[0012] Further, a horn-shaped guide inclined surface is arranged at the inlet of the sealing cover.

[0013] Further, a stepped hole is arranged in the buffer block, the tension rubber sleeve is arranged in the stepped hole, the piston is a stepped cylindrical structure comprising a first stepped column and a second stepped column, the first stepped column is inserted into the stepped hole and abuts against the tension rubber sleeve, the outer circumference of the second stepped column abuts against the inner wall of the sealing cavity, and the bottom surface close to the buffer block forms a compression cavity between the second stepped column and the buffer block.

[0014] Further, a first sealing ring is arranged on the outer circular wall of the first stepped column, and a second sealing ring is arranged on the outer circular wall of the second stepped column.

[0015] Further, a plurality of third sealing rings are arranged on the outer circular wall of the venting pipe.

[0016] In summary, the utility model has the following advantages: 1. By arranging the sealing cup and the self-adapting mechanism capable of automatically resetting the sealing cup after the sealing cup is offset along the length direction of the water-cooling plate, double compensation is realized, the deviation of the mechanical hand in discharging and the manufacturing tolerance of the water nozzle (especially the length and concentricity deviation) can be effectively absorbed, the harsh requirement for the automatic positioning precision is greatly reduced, and different batches and different models of water-cooling plates are compatible.

[0017] 2. The sealing ring of the sealing cup can generate a large contact area and contact pressure under pressure, forming a highly reliable sealing interface, fundamentally eliminating the false leakage misjudgment caused by poor sealing of the tooling, and significantly improving the detection straight-through rate and accuracy.

[0018] 3. The device is fully suitable for a fully automatic production line and can realize rapid and reliable automatic docking and separation, avoiding manual intervention and improving production rhythm and efficiency.

[0019] 4. The sealing cup body is designed in a modular manner and is easy and quick to replace, and some parts thereof are mechanical standard parts, having reliable structure and high durability.

[0020] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, which can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are described in detail, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a front view of the utility model for a self-adaptive flexible sealing device for air tightness detection of a water cooling plate.

[0022] Figure 2 It is a left view of the utility model. Figure 1

[0023] Figure 3 It is a right view of the utility model. Figure 1

[0024] Figure 4 It is an axonometric view of the sealing cup.

[0025] Figure 5 It is a sectional view of the sealing cup.

[0026] Reference signs: 1, sealing cup; 2, guide sliding block; 3, fixed frame; 4, air seat; 5, sliding way; 6, screw rod; 7, fastening nut; 8, spring; 9, threaded part; 10, through hole; 11, cup body; 12, air connection; 13, air passage; 14, sealing cover; 15, buffer block; 16, tension rubber sleeve; 17, piston; 18, first sealing ring; 19, second sealing ring; 20, third sealing ring. DETAILED DESCRIPTION

[0027] The technical scheme of the utility model is further described below in combination with the drawings and preferred embodiments.

[0028] Please refer to Figure 1 , Figure 2 ​​A kind of self-adapting flexible sealing device for water-cooled plate air tightness detection, including sealing cup 1, self-adapting mechanism, sealing cup 1 head is equipped with the detection port for water nozzle to enter, tail portion is communicated with vent seat 4, vent seat 4 is detachably connected between sealing cup 1 (for example by bolt, passes through vent seat 4 and the tail portion of flexible sealing cup 1 and is connected).

[0029] Please refer to Figure 1 、 Figure 2 、 Figure 3 , self-adapting mechanism includes fixed frame 3 and screw rod 6, vent seat 4 is slidably arranged in the slide 5 of fixed frame 3, one side of fixed frame 3 is provided with through hole 10 communicated with slide 5;Screw rod 6 includes sliding part and the threaded portion 9 symmetrically arranged on both sides of sliding part, after screw rod 6 is slidably penetrated through the through hole 10, vent seat 4 is abutted, while the sliding part of screw rod 6 is in sliding contact with the inner wall of through hole 10, the threaded portion 9 on both sides of the sliding part of screw rod 6 is screwed with two fastening nuts 7, and the spring 8 is arranged on the screw rod 6, one end of the two springs 8 is respectively abutted with the two fastening nuts 7, and the other end is respectively abutted with the outer wall and the inner wall of fixed frame 3 (i.e. the two springs 8 are respectively arranged on both sides of the through hole 10);Further, symmetrically distributed guide block 2 is arranged between sealing cup 1 and fixed frame 3, guide block 2 is fixedly connected to fixed frame 3, and a guide sliding groove for limiting vent seat 4 is formed between the two;By means of the above technical features, an elastic reset structure is formed on fixed frame 3 and abutted with vent seat 4, since the position of water-cooled plate is fixed, the water nozzle of different length water-cooled plate is eccentric when inserted into sealing cup 1, which can drive sealing cup 1 to deviate (in the limiting direction, i.e. the length direction of slide 5, and drive vent seat 4 to move in slide 5), and vent seat 4 moves and presses screw rod 6, and spring 8 is contracted, when the water nozzle is pulled out, spring 8 is reset, and vent seat 4 is reset (i.e. sealing cup 1 is reset) driven by screw rod 6;As shown in the direction of Figure 3 Since the water nozzle on the shortest length water-cooled plate of the present application is concentric when moving to the rightmost side during production, only the elastic reset structure needs to be arranged on the left side of the left side of fixed frame 3 (i.e. in this embodiment, vent seat 4 will only deviate to the left side).

[0030] Please refer to Figure 4 、 Figure 5 , sealing cup 1 includes cup body 11 provided with sealing cavity, piston 17 slidably arranged in the sealing cavity of cup body 11, gas connection 12, expansion rubber sleeve 16 and buffer block 15.

[0031] The piston 17 is coaxially arranged with the cup body 11, the piston 17 is provided with a placing cavity on one side and a vent pipe on the other side, the vent pipe is communicated with the placing cavity at one end and penetrates through the cup body 11 and is communicated with the vent seat 4 at the other end; the buffer block 15 is annular and arranged at the detection opening of the cup body 11, the elastic sleeve 16 is arranged between the buffer block 15 and the piston 17; specifically, the buffer block 15 is internally provided with a stepped hole, the elastic sleeve 16 is arranged in the stepped hole, the piston 17 is a stepped cylindrical structure, including a first stepped column and a second stepped column, and the first stepped column is inserted into the stepped hole and abuts against the elastic sleeve 16; the outer circumference of the second stepped column abuts against the inner wall of the sealing cavity, and the bottom surface close to the buffer block 15 and the buffer block 15 form a compression cavity;

[0032] The gas path joint 12 is communicated with the gas channel 13 arranged in the cup body 11 along the axial direction, the other end of the gas channel 13 is communicated with the gap between the piston 17 and the inner wall of the sealing cavity of the cup body 11; when the gas path joint 12 is vented, the gas enters along the gas channel 13 and pushes the piston 17 to move to extrude the elastic sleeve 16, so that the inner ring of the elastic sleeve 16 is fully contacted and fitted with the outer wall of the inserted water nozzle, a seal is formed, then the detection gas is connected to the sealing cavity through the vent seat 4 for detection, after the detection is completed, the gas pressure is released, the water nozzle is pulled out, and the gas inlet of the gas path joint 12 is disconnected, the elastic sleeve 16 is deformed and reset, and the sealing cup 1 is reset and waits for the next detection.

[0033] Preferably, the detection opening of the cup body 11 is provided with a sealing cover 14 matched with the shape of the buffer block 15, the sealing cover 14 is arranged at the end of the buffer block 15 away from the elastic sleeve 16, and a horn-shaped guide slope is arranged at the inlet of the sealing cover 14 to facilitate guiding the water nozzle and inserting the elastic sleeve 16.

[0034] Preferably, a first sealing ring 18 is arranged on the outer circular wall of the first stepped column, and a second sealing ring 19 is arranged on the outer circular wall of the second stepped column; a plurality of third sealing rings 20 are arranged on the outer circular wall of the vent pipe, so that the gaps between the components can be sealed during venting to avoid gas leakage and ensure stable pushing of the piston 17.

[0035] The above is only a preferred embodiment of the present application, and any modification, equivalent change and modification made by any person skilled in the art according to the technical essence of the present application without departing from the technical scheme of the present application shall still fall within the scope of the technical scheme of the present application.

Claims

1. An adaptive flexible sealing device for airtightness testing of water-cooled plates, characterized in that: Includes a sealing cup (1) and an adaptive mechanism; The sealing cup (1) has a detection port at the head for water inlet and a vent seat (4) at the tail, which is fixedly connected to the sealing cup (1). The adaptive mechanism includes a fixed frame (3) and a screw (6). The vent seat (4) is slidably disposed in the slide (5) of the fixed frame (3). One side of the fixed frame (3) is provided with a through hole (10) communicating with the slide (5). The screw (6) slides through the through hole (10) and abuts against the vent seat (4). Both ends of the screw (6) are provided with fastening nuts (7), and springs (8) are sleeved on the screw (6) and arranged oppositely. One end of the two springs (8) abuts against the two fastening nuts (7) respectively, and the other end abuts against the outer wall and inner wall of the fixed frame (3) respectively.

2. The adaptive flexible sealing device for airtightness testing of water-cooled plates according to claim 1, characterized in that: The screw (6) includes a sliding part and threaded parts (9) symmetrically arranged on both sides of the sliding part. The sliding part slides in contact with the inner wall of the through hole (10), and two fastening nuts (7) are respectively screwed onto the threaded parts (9) on both sides of the sliding part.

3. The adaptive flexible sealing device for airtightness testing of water-cooled plates according to claim 1, characterized in that: The vent seat (4) and the sealing cup (1) are detachably connected.

4. The adaptive flexible sealing device for airtightness testing of water-cooled plates according to claim 1, characterized in that: A symmetrically distributed guide slider (2) is provided between the sealing cup (1) and the fixed frame (3). The two guide sliders (2) are fixed on the fixed frame (3) and a guide groove is formed between them for limiting the vent seat (4).

5. The adaptive flexible sealing device for airtightness testing of water-cooled plates according to claim 1, characterized in that: The sealing cup (1) includes a cup body (11) with an internal sealing cavity, a piston (17) that slides in the sealing cavity of the cup body (11), an air connector (12), a tensioning rubber sleeve (16), and a buffer block (15). The piston (17) is coaxially arranged with the cup body (11). The piston has a placement cavity on one side and a vent pipe on the other side. One end of the vent pipe is connected to the placement cavity, and the other end passes through the cup body (11) and is connected to the vent seat (4). The buffer block (15) is ring-shaped and located at the detection port of the cup body (11). The tensioning sleeve (16) is located between the buffer block (15) and the piston (17), and its two ends abut against the buffer block (15) and the piston (17) respectively. The air connector (12) is connected to the air passage (13) arranged axially inside the cup body (11), and the other end of the air passage (13) is connected to the gap between the piston (17) and the inner wall of the sealing cavity of the cup body (11).

6. The adaptive flexible sealing device for airtightness testing of water-cooled plates according to claim 5, characterized in that: The detection port of the cup body (11) is provided with a sealing cap (14) that matches the shape of the buffer block (15). The sealing cap (14) is installed at the end of the buffer block (15) away from the tensioning sleeve (16).

7. The adaptive flexible sealing device for airtightness testing of water-cooled plates according to claim 6, characterized in that: The entrance of the sealing cap (14) is provided with a trumpet-shaped guide ramp.

8. The adaptive flexible sealing device for airtightness testing of water-cooled plates according to claim 5, characterized in that: The buffer block (15) has a stepped hole inside, and the tensioning sleeve (16) is located in the stepped hole. The piston (17) is a stepped cylindrical structure, including a first stepped column and a second stepped column. The first stepped column is inserted into the stepped hole and abuts against the tensioning sleeve (16). The outer circumference of the second stepped column abuts against the inner wall of the sealing cavity, and a compression cavity is formed between the bottom surface of the buffer block (15) and the buffer block (15).

9. An adaptive flexible sealing device for airtightness testing of water-cooled plates according to claim 8, characterized in that: The outer circular wall of the first stepped column is provided with a first sealing ring (18), and the outer circular wall of the second stepped column is provided with a second sealing ring (19).

10. An adaptive flexible sealing device for airtightness testing of water-cooled plates according to claim 5, characterized in that: Several third sealing rings (20) are provided on the outer circular wall of the vent pipe.

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