Sealing workpiece leakage detection device

Abstract

The utility model discloses a sealing workpiece leakage detection device, and relates to the technical field of workpiece air tightness detection equipment, in particular to a sealing workpiece leakage detection device, which comprises a working table, a conveying part and a plurality of detection parts, a plurality of supporting legs are fixedly arranged below the working table, the conveying part is arranged above the working table, and the detection parts are arranged on the working table. All the detection parts are mounted on the workbench; according to the utility model, the plurality of detection parts are arranged along the length direction of the workbench, so that airtightness detection can be carried out on a plurality of workpieces at the same time, and the detection efficiency is greatly improved. Compared with the prior art, the sealing piece does not need to be manually replaced to adapt to workpieces with different calibers, so that the manual operation time is shortened, and the labor intensity is reduced. And a servo electric cylinder in the detection part can quickly and accurately drive a lifting plate to lift and move, so that quick clamping and releasing of the workpiece are realized, and the detection period is further shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to work piece air tightness detection equipment technical field, concretely is a sealed work piece leakage detection device. BACKGROUND

[0002] In the work piece air tightness detection field, the sealing property of sealed work piece is the key index of deciding its product quality, therefore the quality detection of sealing piece before the sealing piece factory shipment is necessary step. In prior art, such as the patent with the publication number CN220568355 U shows, it discloses a sealed work piece leakage detection device, and the device realizes the leakage detection of sealed work piece through the air guide pipe, sealing structure and detection piece. The sealing structure of the device includes sealing sheet and locking structure, can adapt to different caliber work piece to be detected, improves the detection efficiency and reduces the detection cost.

[0003] However, the prior art still has some limitations in practical application. First, its detection process needs manual replacement of sealing sheet to adapt to different caliber work piece, and the operation is relatively cumbersome, the degree of automation is low, and it is difficult to meet the high requirement of detection efficiency in large-scale production. Secondly, the detection accuracy of the device is limited, and the detection of some small leakage may not be sensitive enough, and the sealing performance of the work piece cannot be accurately judged, which may cause misjudgment or omission, thereby affecting the product quality control. In addition, the structure of the device is relatively complex, and there are many parts, which not only increases the manufacturing cost of the equipment, but also may reduce the stability and reliability of the equipment, and the maintenance cost is also increased. In view of the problems existing in the prior art, the utility model provides a new sealed work piece leakage detection device, which aims to further improve the detection efficiency, detection accuracy, reduce the equipment cost, and improve the stability and reliability of the equipment, so as to meet the higher requirement of work piece air tightness detection in modern industrial production. UTILITY MODEL CONTENTS

[0004] (I) technical problem solved

[0005] In view of the defects of the prior art, the utility model provides a sealed work piece leakage detection device, which solves the problems in the above background technology.

[0006] (II) technical scheme

[0007] In order to achieve the above object, the utility model discloses a sealed workpiece leakage detection device, including work table, conveying component, a plurality of detection components, the lower fixed mounting of work table has a plurality of support legs, the conveying component is installed on work table top, each detection component is installed on work table, and each detection component is arranged along the length direction of work table, and the detection component is located on the side of conveying component, the total control switch is fixedly installed on the work table, and the total control switch is connected with conveying component respectively, and each detection component control is connected, the detection component includes support frame, control board, air pump, lifting plate, first bellow, second bellow, pressure sensor, two servo electric cylinders, support frame fixed mounting is on the desktop of work table, control board is fixedly installed on support frame, and air pump is fixedly installed on the ground below work table, two servo electric cylinders are all fixedly installed on the inner bottom wall of support frame, and two servo electric cylinders are arranged in parallel, lifting plate is fixedly installed on the output shaft end of two servo electric cylinders, and two servo electric cylinders drive lifting plate lifting movement synchronously, the upper end of first bellow, second bellow all penetrates the middle plate body of lifting plate, and the pressure sensor is fixedly installed on the upper surface middle part of lifting plate, and the top wall between lifting plate and support frame constitutes airtightness detection site, the medium outflow end of air pump is communicated with the lower end of second bellow, and the control board is electrically connected with air pump, pressure sensor, two servo electric cylinders through wire respectively.

[0008] Optionally, the detection component further includes a first rubber pad, a first electric control valve and a second electric control valve, the first rubber pad is pasted and laid on the upper surface of the lifting plate, the pressure sensor is fixedly installed on the upper surface middle region of the first rubber pad, the first electric control valve is installed on the first bellow, the second electric control valve is installed on the second bellow, and the control board is electrically connected with the first electric control valve and the second electric control valve.

[0009] Optionally, the support frame includes a first support plate, a second support plate, a third support plate and two support columns, the lower ends of the two support columns are fixedly installed with the work table, and the two support columns are arranged in parallel, the two ends of the first support plate are fixedly connected with the lower ends of the two support columns respectively, the two ends of the second support plate are fixedly connected with the middle parts of the two support columns respectively, and the two ends of the third support plate are fixedly connected with the upper ends of the two support columns respectively, the first support plate, the second support plate and the third support plate are sequentially and longitudinally arranged from bottom to top.

[0010] Optionally, the servo motor is fixedly installed on the first support plate, and an output shaft end of the servo motor longitudinally penetrates the second support plate; the upper end of the first bellow penetrates the second support plate, the lifting plate and the first rubber pad in sequence from bottom to top, and the first bellow is fixedly connected with the lifting plate; the upper end of the second bellow penetrates the first rubber pad, the lifting plate and the second support plate in sequence from top to bottom, and the upper end of the second bellow is fixedly connected with the lifting plate; the lower end of the second bellow penetrates the first support plate and the workbench in sequence from top to bottom.

[0011] Optionally, the detection component further comprises a gas conveying pipe, a lower end of the gas conveying pipe is fixedly installed with the medium outflow end of the gas pump and both are in communication, and an upper end of the gas conveying pipe is fixedly installed with the lower end of the second bellow and both are in communication.

[0012] Optionally, the conveying component comprises a servo motor, a driving roller, a driven roller, a conveying belt and two square pipes, the two square pipes are both fixedly installed on the workbench and are arranged in parallel along the width direction of the workbench; the servo motor is fixedly installed on the workbench, two ends of the driving roller are rotatably connected with one end of each of the two square pipes, two ends of the driven roller are rotatably connected with the other end of each of the two square pipes, and an output shaft end of the servo motor is in transmission connection with one end of the driving roller; the conveying belt is arranged on the outer sidewall of the driving roller and the driven roller, and the driving roller is in transmission connection with the driven roller through the conveying belt.

[0013] (Three) beneficial effects

[0014] The sealing workpiece leakage detection device has the following beneficial effects:

[0015] 1、The utility model discloses a plurality of detection components are set up, and each detection component is arranged along the length direction of the workbench, can carry out air tightness detection to multiple workpieces simultaneously, greatly improves the detection efficiency. Compared with the prior art, the device does not need manual replacement of the sealing piece to adapt to workpieces of different diameters, reduces the time and labor intensity of manual operation. The servo motor in the detection component can quickly and accurately drive the lifting plate to move up and down, realize the quick clamping and releasing of the workpiece, and further shorten the detection period. In addition, the setting of the master control switch realizes the centralized control of the conveying component and each detection component, makes the whole detection process more automatic and intelligent, can better adapt to the needs of large-scale production, effectively improves the production efficiency and reduces the production cost. This improvement directly solves the problems of complicated manual operation and low automation degree in the prior art, and significantly improves the detection efficiency.

[0016] 2、The utility model discloses a pressure sensor is arranged in the detection part, can real -time, accurate detection workpiece internal gas pressure variation. Compared with the prior art, the detection precision of pressure sensor is higher, can detect the tiny gas pressure variation, thereby more accurately judge whether workpiece exists leakage. In addition, the first bellow and the second bellow in the detection part adopt the special structure design, can guarantee the stability and uniformity of gas in the conveying process, further improve the accuracy of detection. Through the accurate control of control board to air pump, pressure sensor, servo electric cylinder and other components, can realize the fine operation to the detection process, avoids the influence of artificial factor to the detection result, ensures the reliability of detection result. This improvement effectively solves the problem of insufficient detection precision, easy misjudgment or missing judgment in the prior art, provides more reliable guarantee for product quality control, helps to improve the overall quality and market competitiveness of product.

[0017] 3、The utility model discloses the detection device structure design is more simple and reasonable, and the number of parts reduces, reduces the manufacturing cost of equipment, is suitable for the air tightness detection operation of large -batch workpiece, is suitable for the need of automatic assembly line operation. Meanwhile, because the number of parts reduces, the stability and reliability of equipment improve, and the failure rate reduces, thereby reduces the maintenance cost and maintenance time of equipment. This improvement effectively solves the problem of complex equipment structure, high manufacturing cost and high maintenance cost in the prior art, makes the device more suitable for large -scale production and long -term use. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be to the embodiment or prior art description needed to use the drawing briefly introduced, obviously, the following description in the drawing is only the embodiment of the utility model, for the ordinary skilled person in the art comes, under the premise of not paying the creative labor, can also obtain other drawings according to the provided drawing.

[0019] Figure 1 It is a sealed workpiece leakage detection device's three-dimensional structure schematic view;

[0020] Figure 2 It is a sealed workpiece leakage detection device's three-dimensional structure schematic view;

[0021] Figure 3 It is Figure 2 It is the enlarged structure schematic view of A in the middle;

[0022] Figure 4 It is a sealed workpiece leakage detection device's three-dimensional structure schematic view;

[0023] Figure 5The utility model discloses a sealed workpiece leakage detection device detects the stereogram of the workpiece under the air tightness detection state of the detection part.

[0024] Figure 6 The utility model discloses a sealed workpiece leakage detection device detects the sectional structure of the second support plate.

[0025] Figure 7 The utility model discloses a sealed workpiece leakage detection device detects the stereogram of the servo motor.

[0026] In the figure: 1, workbench, 2, support column, 3, first support plate, 4, second support plate, 5, third support plate, 6, control panel, 7, first rubber pad, 8, lifting plate, 9, servo motor cylinder, 10, air pump, 11, gas pipe, 12, first electric control valve, 13, first bellows, 14, second electric control valve, 15, second bellows, 16, pressure sensor, 17, workpiece, 18, servo motor, 19, square tube, 20, driving roller, 21, driven roller, 22, conveyer belt, 23, master switch. DETAILED DESCRIPTION

[0027] The technical scheme of the utility model will be described clearly and completely below in combination with the drawings. In the description of the utility model, it needs to be explained that the orientation or position relation of the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as the limitation on the utility model. In addition, the terms "first", "second", "third" are only for the description purpose, and cannot be understood as the indication or implication.

[0028] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, can be detachable connection, or integrally connected, can be mechanical connection, or electrical connection, can be directly connected, or indirectly connected through the intermediate medium, can be the communication inside two elements. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments.

[0029] Please refer to Figures 1 to 7The utility model provides technical scheme: a sealed work piece leakage detection device, including workstation 1, conveying component, a plurality of detection components. A plurality of support legs are fixedly installed below workstation 1, and conveying component is installed above workstation 1, each detection component is installed on workstation 1, and each detection component is arranged along the length direction of workstation 1, and detection component is located one side of conveying component. The general control switch 23 is fixedly installed on workstation 1, and the general control switch 23 is connected with conveying component and each detection component control respectively.

[0030] Among them, the technical scheme is used for carrying out air tightness detection to multiple work pieces 17, and whether each work piece 17 exists leakage is verified, realizes the air tightness detection of large quantities of work pieces 17, and greatly improves the detection efficiency of work piece 17. Among them, conveying component is used for conveying work piece 17. One detection component on workstation 1 is a station, and the worker takes work piece 17 on conveying component, places work piece 17 on detection component and carries out air tightness detection, places work piece 17 without leakage on conveying component after detection and continues to convey, removes work piece 17 with leakage (refers to work piece 17 with poor air tightness or problem) from conveying component and places it in the defective frame. The general control switch 23 is used as the general circuit control switch and is used for the general control of the on-off of conveying component and each detection component.

[0031] Detection component includes support frame, control board 6, air pump 10, lifting plate 8, first bellow 13, second bellow 15, pressure sensor 16, two servo electric cylinders 9, support frame is fixedly installed on the desktop of workstation 1, control board 6 is fixedly installed on support frame, air pump 10 is fixedly installed on the ground below workstation 1. Two servo electric cylinders 9 are fixedly installed on the inner bottom wall of support frame, and two servo electric cylinders 9 are arranged in parallel, lifting plate 8 is fixedly installed on the output shaft end of two servo electric cylinders 9, two servo electric cylinders 9 synchronously drive lifting plate 8 to move up and down, the upper end of first bellow 13 and second bellow 15 all penetrates the middle plate body of lifting plate 8, pressure sensor 16 is fixedly installed on the upper surface middle part of lifting plate 8, and the top wall between lifting plate 8 and support frame constitutes air tightness detection position. The medium outflow end of air pump 10 is communicated with the lower end of second bellow 15. Control board 6 is electrically connected (including control connection) with air pump 10, pressure sensor 16 and two servo electric cylinders 9 through wire respectively.

[0032] The control panel 6 includes but is not limited to an editable logic controller, and the control panel 6 is internally provided with software programs such as a logic control program and a timing control program to meet the needs of semi-automatic control of various electrical elements and to meet the needs of parameter adjustment of various electrical elements in the semi-automatic control process. The two servo electric cylinders 9 are used to synchronously drive the lifting plate 8 to rise or fall. The worker places the workpiece 17 upside down on the lifting plate 8, and the pressure sensor 16 is located in the internal cavity of the workpiece 17. When the two servo electric cylinders 9 synchronously drive the lifting plate 8 to rise, the lifting plate 8 drives the workpiece 17 to move upwards. When the upper part of the workpiece 17 cannot move upwards due to contact with the top wall of the support frame, the lifting plate 8 and the support frame clamp and fix the workpiece 17, and at the same time, the lifting plate 8 seals the lower end port of the workpiece 17 to prevent air from passing through the lower end port. At this time, the internal cavity of the workpiece 17 forms a sealed cavity. The air pump 10 is used to inject a large amount of air into the internal cavity of the workpiece 17 through the second bellows 15 to increase the internal air pressure of the workpiece 17 (for example, the internal air pressure of the workpiece 17 is 1.2 times the external air pressure). After the internal air pressure of the workpiece 17 increases to a certain value, the air pump 10 is closed, and the pressure sensor 16 detects the change of the internal air pressure of the workpiece 17 within 30 seconds (this 30 seconds is only used for example, and the actual detection time can be adjusted according to the needs of different workpieces 17). If the internal air pressure of the workpiece 17 rapidly decreases from high, it proves that the workpiece 17 has a leakage and the air tightness of the workpiece 17 is poor, and the workpiece 17 is a defective product. If the internal air pressure of the workpiece 17 tends to be stable, it proves that the air tightness of the workpiece 17 is good and there is no leakage, and the workpiece 17 is a good product.

[0033] The pressure sensor 16 includes but is not limited to a capacitive pressure sensor, a piezoresistive pressure sensor, and a strain gauge pressure sensor. The control panel 6 controls the start and stop operations of the two servo electric cylinders 9 and the air pump 10. The control panel 6 is in communication connection with the pressure sensor 16. After detecting the pressure, the pressure sensor 16 transmits relevant data parameters to the control panel 6, and the worker checks the data on the workpiece 17 through the control panel 6 to determine whether the workpiece 17 is qualified. The control panel 6 responds to the pressure sensor 16, and the control panel 6 controls the output shaft of the two servo electric cylinders 9 to descend, thereby facilitating the removal of the workpiece 17.

[0034] Specifically, the detection component further includes a first rubber pad 7, a first electric control valve 12, and a second electric control valve 14. The first rubber pad 7 is pasted and laid on the upper surface of the lifting plate 8. The pressure sensor 16 is fixedly installed in the middle region of the upper surface of the first rubber pad 7. The first electric control valve 12 is installed on the first bellows 13, and the second electric control valve 14 is installed on the second bellows 15. The control panel 6 is electrically connected with the first electric control valve 12 and the second electric control valve 14, respectively.

[0035] The first rubber pad 7 is used to strengthen the sealing of the lifting plate 8 to the mouth edge of the workpiece 17, so as to avoid gas leakage along the mouth edge of the workpiece 17. The control panel 6 is used to control the opening and closing of the first electric control valve 12 and the second electric control valve 14. Before the control panel 6 controls the starting of the air pump 10, the control panel 6 first controls the opening of the second electric control valve 14 and the closing of the first electric control valve 12. Then, the control panel 6 controls the starting of the air pump 10, and the air pump 10 injects a large amount of air into the internal cavity of the workpiece 17 through the second bellows 15, so that the internal air pressure of the workpiece 17 rises. After the internal air pressure of the workpiece 17 rises to a certain value, the control panel 6 controls the closing of the air pump 10 and the second electric control valve 14; after 30 seconds, the pressure sensor 16 detects the change of the air pressure in 30 seconds, and transmits the related data information to the control panel 6. The worker judges whether the workpiece 17 is qualified according to the data information on the control panel 6. Then, the control panel 6 controls the opening of the first electric control valve 12, and after the first electric control valve 12 is opened, the internal gas of the workpiece 17 is discharged through the first bellows 13, so as to realize pressure relief. Then, the control panel 6 controls the descending of the output shaft of the two servo electric cylinders 9, and the two servo electric cylinders 9 synchronously drive the descending of the lifting plate 8, so that the workpiece 17 descends with the lifting plate 8, and the worker can take down the workpiece 17.

[0036] Further specifically, the support frame comprises a first support plate 3, a second support plate 4, a third support plate 5 and two support columns 2. The lower ends of the two support columns 2 are fixedly installed with the workbench 1, and the two support columns 2 are arranged in parallel. The two ends of the first support plate 3 are fixedly connected with the lower ends of the two support columns 2, respectively. The two ends of the second support plate 4 are fixedly connected with the middle parts of the two support columns 2, respectively. The two ends of the third support plate 5 are fixedly connected with the upper ends of the two support columns 2, respectively. The first support plate 3, the second support plate 4 and the third support plate 5 are arranged in sequence from bottom to top.

[0037] The support frame is used as a frame structure to support and stabilize each component in the detection part, and as a support carrier. The support column 2 can also adopt a plate structure. The first support plate 3 is used to support and fix the two servo electric cylinders 9. The second support plate 4 is used to strengthen the structural stability of the two support columns 2. The lifting plate 8 and the third support plate 5 form an airtight detection position. When the lifting plate 8 drives the workpiece 17 to rise, the lifting plate 8 and the third support plate 5 clamp and fix the workpiece 17.

[0038] Further more specifically, the servo electric cylinder 9 is fixedly installed on the first support plate 3, and an output shaft end of the servo electric cylinder 9 longitudinally penetrates the second support plate 4. The upper end of the first bellow 13 penetrates the second support plate 4, the lifting plate 8 and the first rubber pad 7 from bottom to top in sequence, and the first bellow 13 is fixedly connected with the lifting plate 8. The upper end of the second bellow 15 penetrates the first rubber pad 7, the lifting plate 8 and the second support plate 4 from top to bottom in sequence, and the upper end of the second bellow 15 is fixedly connected with the lifting plate 8. The lower end of the second bellow 15 penetrates the first support plate 3 and the workbench 1 from top to bottom in sequence.

[0039] Wherein, the first bellow 13 and the second bellow 15 are both bellows, which can be stretched and contracted, and can ensure the displacement when the lifting plate 8 moves up and down.

[0040] Further more specifically, the detection component further comprises a gas conveying pipe 11, the lower end of the gas conveying pipe 11 is fixedly installed with the medium outflow end of the air pump 10 and both are communicated, and the upper end of the gas conveying pipe 11 is fixedly installed with the lower end of the second bellow 15 and both are communicated.

[0041] Wherein, the gas conveying pipe 11 can be a soft pipe or a hard pipe, which is used for guiding the gas.

[0042] Specifically, the conveying component comprises a servo motor 18, a driving roller 20, a driven roller 21, a conveying belt 22 and two square pipes 19, the two square pipes 19 are both fixedly installed on the workbench 1 and are arranged in parallel along the width direction of the workbench 1. The servo motor 18 is fixedly installed on the workbench 1, the two ends of the driving roller 20 are both rotatably connected with one end of the two square pipes 19, the two ends of the driven roller 21 are both rotatably connected with the other end of the two square pipes 19, and one end of the driving roller 20 is drivingly connected with the output shaft end of the servo motor 18. The conveying belt 22 is wound on the outer sidewall of the driving roller 20 and the driven roller 21, and the driving roller 20 is drivingly connected with the driven roller 21 through the conveying belt 22.

[0043] Wherein, the total control switch 23 is electrically connected with the servo motor 18, and the total control switch 23 is used for controlling the start and stop operation of the servo motor 18. After the servo motor 18 is started, the output shaft of the servo motor 18 drives the driving roller 20 to rotate, the driving roller 20 drives the conveying belt 22 to rotate, the conveying belt 22 rotates around the driving roller 20 and the driven roller 21, and the conveying belt 22 is used for conveying each workpiece 17.

[0044] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the application concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A sealed workpiece leak detection apparatus, characterized by: Including workbench (1), conveying component, multiple detection components, multiple support legs are fixedly installed below the workbench (1), the conveying component is installed above the workbench (1), each detection component is installed on the workbench (1), and each detection component is arranged along the length direction of the workbench (1), and the detection component is located at one side of the conveying component;The workbench (1) is fixedly installed with a general control switch (23), and the general control switch (23) is connected with the conveying component and each detection component in control respectively; The detection component includes a support frame, a control panel (6), a gas pump (10), a lifting plate (8), a first bellows (13), a second bellows (15), a pressure sensor (16), two servo electric cylinders (9), the support frame is fixedly installed on the desktop of the workbench (1), the control panel (6) is fixedly installed on the support frame, the gas pump (10) is fixedly installed on the ground below the workbench (1), the two servo electric cylinders (9) are fixedly installed on the inner bottom wall of the support frame, and the two servo electric cylinders (9) are arranged in parallel, the lifting plate (8) is fixedly installed on the output shaft end of the two servo electric cylinders (9), the two servo electric cylinders (9) drive the lifting plate (8) to move up and down synchronously, the upper end of the first bellows (13) and the second bellows (15) penetrates the middle plate body of the lifting plate (8), the pressure sensor (16) is fixedly installed on the upper surface of the lifting plate (8), and the lifting plate (8) and the top wall of the support frame form a gas-tight detection position;The medium outflow end of the gas pump (10) is communicated with the lower end of the second bellows (15);The control panel (6) is electrically connected with the gas pump (10), the pressure sensor (16) and the two servo electric cylinders (9) through wires respectively.

2. A sealed workpiece leak detection apparatus as defined in claim 1, wherein: The detection component further includes a first rubber pad (7), a first electric control valve (12) and a second electric control valve (14), the first rubber pad (7) is pasted and laid on the upper surface of the lifting plate (8), the pressure sensor (16) is fixedly installed on the upper surface of the first rubber pad (7), the first electric control valve (12) is installed on the first bellows (13), the second electric control valve (14) is installed on the second bellows (15), and the control panel (6) is electrically connected with the first electric control valve (12) and the second electric control valve (14) respectively.

3. A sealed workpiece leak detection apparatus as defined in claim 2, wherein: The support frame includes a first support plate (3), a second support plate (4), a third support plate (5) and two support columns (2), the lower ends of the two support columns (2) are fixedly installed with the workbench (1), and the two support columns (2) are arranged in parallel;The two ends of the first support plate (3) are fixedly connected with the lower ends of the two support columns (2) respectively, the two ends of the second support plate (4) are fixedly connected with the middle parts of the two support columns (2) respectively, and the two ends of the third support plate (5) are fixedly connected with the upper ends of the two support columns (2) respectively;The first support plate (3), the second support plate (4) and the third support plate (5) are sequentially and vertically arranged from bottom to top.

4. A sealed workpiece leak detection apparatus as defined in claim 3, wherein: The servo motor cylinder (9) is fixedly installed on the first support plate (3), and the output shaft end of the servo motor cylinder (9) longitudinally penetrates the second support plate (4); the upper end of the first bellow (13) penetrates the second support plate (4), the lifting plate (8) and the first rubber pad (7) from bottom to top in sequence, and the first bellow (13) is fixedly connected with the lifting plate (8); the upper end of the second bellow (15) penetrates the first rubber pad (7), the lifting plate (8) and the second support plate (4) from top to bottom in sequence, and the upper end of the second bellow (15) is fixedly connected with the lifting plate (8); the lower end of the second bellow (15) penetrates the first support plate (3) and the workbench (1) from top to bottom in sequence.

5. A sealed workpiece leak detection apparatus as defined in claim 4, wherein: The detection component further comprises a gas conveying pipe (11), the lower end of the gas conveying pipe (11) is fixedly installed with the medium outflow end of the gas pump (10) and communicates with each other, and the upper end of the gas conveying pipe (11) is fixedly installed with the lower end of the second bellow (15) and communicates with each other.

6. The apparatus of claim 1, wherein: The conveying component comprises a servo motor (18), a driving roller (20), a driven roller (21), a conveying belt (22) and two square tubes (19), the two square tubes (19) are fixedly installed on the workbench (1) and are arranged in parallel along the width direction of the workbench (1); the servo motor (18) is fixedly installed on the workbench (1), the two ends of the driving roller (20) are rotatably connected with one end of the two square tubes (19) respectively, the two ends of the driven roller (21) are rotatably connected with the other end of the two square tubes (19) respectively, and the output shaft end of the servo motor (18) is in transmission connection with one end of the driving roller (20); the conveying belt (22) is arranged on the outer sidewall of the driving roller (20) and the driven roller (21), and the driving roller (20) is in transmission connection with the driven roller (21) through the conveying belt (22).

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