Workpiece air tightness detection device

Abstract

The utility model discloses a workpiece airtightness detection device, and relates to the technical field of workpiece processing. The device comprises a machine frame, handheld frames are fixedly installed at the two ends of the machine frame, an air inlet assembly is fixedly installed at one end of the top of each handheld frame, a plurality of sealing assemblies are arranged in an inner cavity of each air inlet assembly, and a plurality of workpieces are arranged on the sides, away from the air inlet assemblies, of the sealing assemblies. According to the utility model, each workpiece pushes the corresponding sealing assembly to push into the inner cavity of the air inlet assembly, so that the air inlet assembly is communicated with the inner cavity of each workpiece to be detected, thereby ensuring that air can smoothly enter each workpiece from the air inlet assembly to detect the workpiece. And the multiple sealing assemblies are arranged, the work pieces, the first gaskets and the pressing assemblies work independently, the device can independently detect and judge which work piece is a defective product, the troubleshooting process is simple and easy to operate, and the production efficiency of products is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of workpiece processing, and in particular relates to a workpiece air tightness detection device. Background Art

[0002] At present, with the rapid development of the industrial industry, the requirements for parts of mechanical equipment are getting higher and higher, especially the air tightness requirements of some parts are high. Therefore, the parts need to be checked for air tightness before leaving the factory to prevent the internal pores from causing moisture to penetrate, thereby affecting the quality of the workpiece.

[0003] The traditional workpiece air tightness detection device is to seal the two ends of the workpiece through a plugging device and a sealing device, and then inflate the workpiece from the connection point between the sealing device and the outside world. If the value of the air pressure gauge when inflating the workpiece changes, the workpiece has a leak and is judged to be a defective product. If the value of the air pressure gauge does not change, the workpiece is qualified and can be used, and the workers can directly observe and judge.

[0004] The air tightness detection device for workpieces usually places multiple workpieces that need to be detected as a group on the air tightness detection device for detection. If the value of the pressure gauge changes during ventilation, it is necessary to re-detect and check multiple workpieces in a group. It is impossible to detect and determine which workpiece is a defective product among multiple workpieces to be detected, which makes the checking process not only cumbersome, but also relatively affects the detection efficiency. In the case of increasing production, it is becoming less and less applicable, which seriously affects the production efficiency of the product. In traditional workpiece air tightness detection devices, it is usually necessary to manually turn the handle to fix the workpiece. This method not only does not clamp the workpiece firmly, but also turns the handles one by one, and the process is quite cumbersome, which is not conducive to large-scale detection of workpieces.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] In view of the problems in the related technology, the utility model proposes a workpiece air tightness detection device to overcome the above technical problems existing in the existing related technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model discloses a workpiece air tightness detection device, comprising a frame, both ends of the frame are fixedly installed with a hand-held frame, an air intake component is fixedly installed at one end of the top of the hand-held frame, a plurality of sealing components are arranged in the inner cavity of the air intake component, a plurality of workpieces are arranged on the side of the sealing component away from the air intake component, one end of the sealing component stops in the inner cavity of the workpiece, the inner cavity of the workpiece is communicated with the inner cavity of the air intake component, a plurality of first gaskets are fixedly installed on the side of the air intake component close to the workpiece, the central axes of the first gasket and the sealing component are on the same horizontal plane, a plurality of holding components are fixedly installed at one end of the frame away from the air intake component, the number of the sealing components, the holding components and the first gaskets corresponds to the number of the workpieces, a moving component is fixedly installed at one end of the holding component away from the workpiece, the moving component is fixedly installed between the frame, and the moving component is communicated with the inner cavity of the holding component.

[0009] Furthermore, a limiting block for limiting the two ends of the workpiece is fixedly installed on the top of the frame.

[0010] Furthermore, the air intake assembly comprises an air intake port, and a ventilation barrel is fixedly mounted on one end of the air intake port close to the frame.

[0011] Further, the sealing assembly includes a support frame, the support frame is fixedly mounted on the ventilation barrel, a sliding rod is slidably mounted at the axis of the support frame, a fixed disk is fixedly mounted on one end of the sliding rod, a second gasket is arranged on the circumferential surface of one end of the fixed disk, a first airtight sheet is fixedly mounted on the other end of the sliding rod, a first spring is sleeved on the circumferential surface of the sliding rod, one end of the first spring abuts against the support frame and the other end abuts against the first airtight sheet;

[0012] Wherein, the central axis of the first airtight sheet corresponds to the inner cavity of the air intake component, and the first gasket corresponds to the inner cavity of the air intake component.

[0013] Furthermore, the holding assembly includes a limit plate, which is fixedly mounted on the top of the frame, a movable plate is slidably mounted in the inner cavity of the limit plate, a movable rod is slidably mounted on the end of the movable plate close to the workpiece, a second spring is sleeved on the circumferential surface of the movable rod, one end of the second spring is abutted on the movable plate and the other end is abutted on the inner cavity of the limit plate; the movable plate is arranged in a triangular shape at one end close to the movable assembly.

[0014] Furthermore, the moving assembly includes a fixed barrel, which is fixedly mounted on a frame, and an air push rod is arranged in the inner cavity of the fixed barrel, and a sliding block that slides with the inner cavity of the fixed barrel is fixedly mounted on one side of the air push rod, and a sliding groove is provided at one end of the air push rod close to the moving plate, so that the air push rod and the moving plate are in a sliding fit, and a third spring is arranged at the other end of the air push rod, and one end of the third spring stops on the air push rod and the other end stops on the inner cavity of the fixed barrel.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model pushes the corresponding sealing component of each workpiece into the inner cavity of the air intake component, so that the inner cavity between the air intake component and each workpiece to be inspected is communicated, thereby ensuring that the gas can smoothly enter each workpiece from the air intake component to inspect the workpiece, and a plurality of sealing components, workpieces, first gaskets and holding components are arranged to work relatively independently, so that the device can detect and determine which workpiece is a defective product separately, making the inspection process simple and easy to operate, and greatly increasing the production efficiency of the product.

[0017] 2. The utility model inflates the inner cavity of the moving component through the air cylinder. The internal components of the moving component are pushed by the gas to move in the direction of the workpiece, thereby causing the internal components of the pressing component to pneumatically press the other end of the workpiece. The device presses several workpieces at the same time through the air cylinder, which solves the problem of the traditional method of manually turning the handles one by one to fix the workpieces, resulting in loose clamping of the workpieces and complicated procedures, which is not conducive to large-scale inspection of workpieces.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the utility model embodiments, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a three-dimensional structural diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the limit block of the utility model;

[0022] Figure 3 This is a schematic diagram of the first spring of the utility model;

[0023] Figure 4 This is a schematic diagram of a first gasket of the utility model;

[0024] Figure 5 It is a schematic diagram of the sealing component of the utility model;

[0025] Figure 6 This is a schematic diagram of a first gasket of the utility model;

[0026] Figure 7 It is a schematic diagram of a limiting plate of the utility model;

[0027] Figure 8 It is a schematic diagram of the gas push rod of the utility model;

[0028] Fig. 9 It is a schematic diagram of the moving rod of the utility model.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 1. Frame; 101. Limit block; 2. Hand-held frame; 3. Air intake assembly; 301. Air inlet; 302. Ventilation barrel; 4. Sealing assembly; 401. Support frame; 402. Sliding rod; 403. Fixed plate; 404. Second gasket; 405. First airtight plate; 406. First spring; 5. Workpiece; 6. First gasket; 7. Holding assembly; 701. Limit plate; 702. Moving plate; 703. Moving rod; 704. Second spring; 8. Moving assembly; 801. Fixed barrel; 802. Air push rod; 803. Sliding block; 804. Sliding groove; 805. Third spring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0033] See also Figure 1-Figure 9As shown, the utility model is a workpiece air tightness detection device, comprising a frame 1, a hand-held frame 2 is fixedly installed at both ends of the frame 1, an air intake component 3 is fixedly installed at one end of the top of the hand-held frame 2, a plurality of sealing components 4 are arranged in the inner cavity of the air intake component 3, a plurality of workpieces 5 are arranged on the side of the sealing component 4 away from the air intake component 3, one end of the sealing component 4 stops in the inner cavity of the workpiece 5, the inner cavity of the workpiece 5 is communicated with the inner cavity of the air intake component 3, and the side of the air intake component 3 close to the workpiece 5 is fixed. A plurality of first gaskets 6 are fixedly installed, and the central axes of the first gasket 6 and the sealing component 4 are on the same horizontal plane. A plurality of holding components 7 are fixedly installed on the end of the frame 1 away from the air intake component 3. The number of the sealing components 4, the holding components 7 and the first gaskets 6 corresponds to the number of the workpieces 5, and a moving component 8 is fixedly installed on the end of the holding component 7 away from the workpiece 5, and the moving component 8 is fixedly installed between the frame 1, and the moving component 8 is communicated with the inner cavity of the holding component 7.

[0034] Before the air tightness of the device needs to be tested, one end of the sealing component 4 close to the workpiece 5 is outside the air intake component 3, so that the air intake component 3 is in a sealed state as a whole under the action of the other end of the sealing component 4 contacting the inner cavity of the air intake component 3 and the elastic action inside the sealing component 4. When the air tightness of the workpiece 5 needs to be tested, one end of the workpiece 5 needs to be stopped on the air intake component 3. When one end of the workpiece 5 moves toward the air intake component 3, the workpiece 5 will slowly push the sealing component 4 to approach the air intake component 3. When the sealing component 4 is completely pushed into the air intake component 3 by the workpiece 5, since one end of the sealing component 4 stops at an inner cavity opening of the workpiece 5, at this time, one end of the sealing component 4 is in The air intake component 3 is in a sealed fitting state, but the sealing component 4 moves in the inner cavity of the air intake component 3 so that the air intake component 3 does not contact the other end of the sealing component 4. At this time, the inner cavities of the air intake component 3 and the workpiece 5 are connected to ensure that the gas of the air intake component 3 enters the workpiece 5. Since the central axes of the first gasket 6 and the sealing component 4 are on the same horizontal plane, the other inner cavity opening of the workpiece 5 will be stopped and closed by the first gasket 6 to prevent the device from being insufficiently airtight when the device is ventilated. When there is no workpiece 5 to be detected at a certain place of the air intake component 3, the sealing component 4 will be restored to its initial state due to the elastic action inside the sealing component 4, so that the air intake component 3 is in a sealed state as a whole, thereby ensuring the airtightness of the device when there is no workpiece to be detected at a certain place of the device.

[0035] Since the device is provided with a plurality of sealing components 4, workpieces 5, first gaskets 6 and holding components 7, and the sealing components 4, workpieces 5, first gaskets 6 and holding components 7 work relatively independently, when the value of the barometer changes, a workpiece 5 is taken out from the rack 1. If the value of the barometer does not change, the workpiece 5 taken out is a qualified product. If the value of the barometer changes, the workpiece 5 taken out is a defective product. By analogy, each workpiece 5 of this group is taken out respectively, and the change of the value of the barometer is observed to judge whether the workpiece is qualified, so as to install Each workpiece 5 pushes the corresponding sealing component 4 into the inner cavity of the air intake component 3, so that the inner cavity between the air intake component 3 and each workpiece 5 to be inspected is communicated, thereby ensuring that the gas can smoothly enter each workpiece 5 from the air intake component 3 to inspect the workpiece, and a plurality of sealing components 4, workpieces 5, first gaskets 6 and holding components 7 are arranged to work relatively independently, so that the device can detect and judge which workpiece is a defective product separately, making the troubleshooting process simple and easy to operate, and greatly increasing the production efficiency of the product;

[0036] After that, the other end of the workpiece 5 stops against the holding component 7, and the cylinder inflates the inner cavity of the moving component 8. Since the moving component 8 is connected to the inner cavity of the holding component 7, the internal components of the moving component 8 will push the internal components of the holding component 7 to move in the direction of the workpiece 5 under the push of the gas. When the internal components of the holding component 7 are completely in contact with the other end of the workpiece 5, the internal components of the holding component 7 perform a pneumatic pressing on the other end of the workpiece 5. At this time, the cylinder stops ventilating, and the cylinder inflates the inner cavity of the moving component 8. The internal components of the moving component 8 will push the internal components of the holding component 7 to move in the direction of the workpiece 5 under the push of the gas, thereby causing the internal components of the holding component 7 to perform a pneumatic pressing on the other end of the workpiece 5. The device simultaneously presses several workpieces 5 through cylinder ventilation, which solves the traditional problem of manually turning the handle one by one to fix the workpiece, resulting in loose clamping of the workpiece and cumbersome process, which is not conducive to large-scale detection of workpieces.

[0037] In one embodiment, for the above-mentioned frame 1 , a limiting block 101 for limiting the two ends of the workpiece 5 is fixedly installed on the top of the frame 1 .

[0038] The function of the limiting block 101 is to limit the periphery of the workpiece 5 when the workpiece 5 is placed on the rack 1 .

[0039] In one embodiment, for the air intake assembly 3 , the air intake assembly 3 includes an air inlet 301 , and a ventilation barrel 302 is fixedly installed at one end of the air inlet 301 close to the frame 1 .

[0040] One end of the air inlet 301 is connected to the cylinder for ventilation of the air inlet assembly 3 , and the ventilation barrel 302 is used to pass the gas from the air inlet 301 into the workpiece 5 .

[0041] In one embodiment, for the above-mentioned sealing assembly 4, the sealing assembly 4 includes a support frame 401, the support frame 401 is fixedly installed on the ventilation barrel 302, a sliding rod 402 is slidably installed at the axis of the support frame 401, a fixed disk 403 is fixedly installed at one end of the sliding rod 402, a second gasket 404 is provided on the circumferential surface of one end of the fixed disk 403, a first airtight film 405 is fixedly installed at the other end of the sliding rod 402, a first spring 406 is sleeved on the circumferential surface of the sliding rod 402, one end of the first spring 406 is stopped on the support frame 401 and the other end is stopped on the first airtight film 405;

[0042] The center axis of the first airtight sheet 405 corresponds to the inner cavity of the air intake component 3 , and the first gasket 6 corresponds to the inner cavity of the air intake component 3 .

[0043] When the workpiece 5 slowly pushes the sealing component 4 to approach the air intake component 3, the workpiece 5 will push the sealing component 4. The workpiece 5 will first push the first airtight film 405 to move, and the first airtight film 405 will drive the sliding rod 402 fixedly installed thereon to move. Since one end of the first spring 406 stops on the support frame 401 and the other end stops on the first airtight film 405, at the same time, the first airtight film 405 will compress the first spring 406 sleeved on the circumferential surface of the sliding rod 402. Since the sliding rod 402 is fixedly installed on the fixed plate 403, the fixed plate 403 will move with the movement of the sliding rod 402, and then the fixed plate 403 will drive the second gasket 404 set on the circumferential surface to move. Since the second gasket 404 is not in contact with the inner cavity of the air intake component 3 at this time, the purpose of communicating the inner cavity between the air intake component 3 and the workpiece 5 is achieved.

[0044] When the device does not detect the workpiece 5, the workpiece 5 does not push the sealing component 4. The first airtight sheet 405 is elastically acted on the first spring 406 sleeved on the circumferential surface of the sliding rod 402. The first spring 406 pushes the first airtight sheet 405 to move. The first airtight sheet 405 drives the sliding rod 402 fixedly mounted thereon to move. The fixed plate 403 fixedly mounted on the sliding rod 402 moves with the movement of the sliding rod 402. Then the fixed plate 403 drives the second gasket 404 arranged on the circumferential surface to move. At this time, the second gasket 404 is in close contact with the inner cavity of the air inlet component 3 to prevent the device from being insufficiently airtight when the device is ventilated.

[0045] The device pushes the movement of the first airtight sheet 405 through the workpiece 5, so that it and the second gasket 404 are not in contact with the inner cavity of the air intake component 3, so as to achieve the purpose of the inner cavity between the air intake component 3 and the workpiece 5 being communicated, and when the workpiece 5 is not inspected, the second gasket 404 will be under the action of the first spring 406. Make the second gasket 404 and the inner cavity of the air intake component 3 close contact, so as to prevent the device from leaking when the workpiece is not inspected here, and then realize that when there is a workpiece to be inspected at each location of the device, the device can inspect the workpiece 5 here, and when there is no workpiece 5 to be inspected here, the sealing of the device is guaranteed, so that the device can work on each workpiece 5 separately, so that during the inspection process, it can be detected and determined which workpiece is a defective product, making this troubleshooting process simple and easy to operate, and greatly increasing the production efficiency of the product.

[0046] In one embodiment, for the above-mentioned pressing component 7, the pressing component 7 includes a limit plate 701, the limit plate 701 is fixedly installed on the top of the frame 1, a moving plate 702 is slidably installed in the inner cavity of the limit plate 701, a moving rod 703 is slidably installed on the end of the moving plate 702 close to the workpiece 5, and a second spring 704 is sleeved on the circumferential surface of the moving rod 703, one end of the second spring 704 is stopped on the moving plate 702 and the other end is stopped on the inner cavity of the limit plate 701; the end of the moving plate 702 close to the moving component 8 is arranged in a triangular shape, and the moving component 8 includes A fixed barrel 801, wherein the fixed barrel 801 is fixedly mounted on the frame 1, and an air push rod 802 is arranged in the inner cavity of the fixed barrel 801, and a sliding block 803 which is slidably matched with the inner cavity of the fixed barrel 801 is fixedly mounted on one side of the air push rod 802, and a sliding groove 804 is provided at one end of the air push rod 802 close to the movable plate 702, so that the air push rod 802 and the movable plate 702 are in a slidable fit, and a third spring 805 is arranged at the other end of the air push rod 802, and one end of the third spring 805 stops on the air push rod 802 and the other end stops on the inner cavity of the fixed barrel 801.

[0047] At this time, the cylinder inflates the inner cavity of the fixed barrel 801 to which it is fixed. Since the sliding block 803 slides with the inner cavity of the fixed barrel 801, the gas in the cylinder will push the sliding block 803 in the moving component 8 to move, and then the sliding block 803 drives the fixedly installed gas push rod 802 to move. In addition, since the sliding groove 804 causes the gas push rod 802 to slide with the moving plate 702, the sliding groove 804 will slide with one end of the moving plate 702 set in a triangle, so as to achieve a movement of the gas push rod 802 to drive the moving plate 702 to move toward one end of the workpiece 5. At this time, the third spring 805 that stops at one side of the gas push rod 802 will be compressed by the movement of the gas push rod 802. Since the moving plate 702 is slidably installed in the inner cavity of the limit plate 701, the moving plate 702 is moved by the moving plate 7 02 moves toward one end of the workpiece 5 in the inner cavity of the limiting plate 701 to achieve a pressing and limiting effect of the moving plate 702 on the workpiece 5. At the same time, the moving rod 703 slidably mounted with the moving plate 702 will enter the inner cavity of the moving plate 702. Since one end of the second spring 704 stops on the moving plate 702 and the other end stops on the inner cavity of the limiting plate 701, the circumferential surface of the moving rod 703 is sleeved with the second spring 704 and will also be compressed by the movement of the moving plate 702. Therefore, the device pushes the moving plate 702 to move through the air push rod 802 under air pressure to clamp the workpiece 5, thereby solving the problem of the traditional method of manually turning the handle one by one to fix the workpiece, which causes the workpiece to be clamped loosely, and the cumbersome process is not conducive to the large-scale detection of workpieces.

[0048] When the inner cavity of the fixed barrel 801 is not subjected to the gas pressure in the cylinder, the gas push rod 802 will be elastically pushed by the third spring 805 arranged on one side thereof, and the movable plate 702 will also be acted upon by the second spring 704 from the stop side, so that the holding assembly 7 and the moving assembly 8 are restored to their initial state to ensure that the device clamps the workpiece 5 next time.

[0049] In summary, with the aid of the above technical solution of the utility model, one end of the air inlet 301 is connected to the cylinder, which is used for the cylinder to ventilate the air inlet component 3, and the vent barrel 302 is used to pass the gas from the air inlet 301 into the workpiece 5. When the workpiece 5 slowly pushes the sealing component 4 to approach the air inlet component 3, the workpiece 5 first pushes the first airtight sheet 405 to move, and the first airtight sheet 405 drives the sliding rod 402 to move. The first airtight sheet 405 compresses the first spring 406, and the fixed plate 403 moves with the movement of the sliding rod 402, and then the fixed plate 403 moves. The second gasket 404 is driven to move, so as to achieve the purpose of communicating the inner cavity between the air intake component 3 and the workpiece 5. When the device does not detect the workpiece 5, the workpiece 5 does not push the sealing component 4, and the first airtight sheet 405 will be elastically acted on by the first spring 406. The first spring 406 pushes the first airtight sheet 405 to move, and the first airtight sheet 405 drives the sliding rod 402 to move. The fixed plate 403 moves with the movement of the sliding rod 402, and then the fixed plate 403 moves with the second gasket 404. At this time, the second gasket 404 is in close contact with the inner cavity of the air intake component 3. At this time, the air The cylinder inflates air into the inner cavity of the fixed barrel 801, and the gas in the cylinder pushes the sliding block 803 in the moving component 8 to move, and then the sliding block 803 drives the gas push rod 802 to move. Because the sliding groove 804 causes the gas push rod 802 to be in sliding cooperation with the moving plate 702, the sliding groove 804 will slide with one end of the moving plate 702 set in a triangle, and the gas push rod 802 drives the moving plate 702 to move toward one end of the workpiece 5. At this time, the third spring 805 will be compressed by the movement of the gas push rod 802, and the moving plate 702 will move in the inner cavity of the limit plate 701 toward one end of the workpiece 5. The movable plate 702 will move to achieve a pressing limit on the workpiece 5 by the movable plate 702, and the movable rod 703 will enter the inner cavity of the movable plate 702, and the second spring 704 will be compressed by the movement of the movable plate 702. When the inner cavity of the fixed barrel 801 is not affected by the gas pressure in the cylinder, the gas push rod 802 will be elastically pushed by the third spring 805 arranged on one side thereof, and the movable plate 702 will also be acted upon by the second spring 704 from the stop side, so that the pressing assembly 7 and the movable assembly 8 are restored to their initial state to ensure that the device clamps the workpiece 5 next time.

[0050] Through the above technical scheme, 1. The first airtight sheet 405 is pushed to move by the workpiece 5 so that it is not in contact with the second gasket 404 and the inner cavity of the air intake component 3, so as to achieve the purpose of the inner cavity between the air intake component 3 and the workpiece 5 being connected, and when the workpiece 5 is not inspected, the second gasket 404 will be under the action of the first spring 406. Make the second gasket 404 and the inner cavity of the air intake component 3 close contact to prevent the device from leaking when the workpiece is not inspected here, so as to achieve that when there is a workpiece to be inspected at each location of the device, the device can inspect the workpiece 5 here, and when there is no workpiece 5 to be inspected here, the sealing of the device is guaranteed, so that the device can work on each workpiece 5 separately, so that during the inspection process, it can be detected and determined which workpiece is a defective product, making the troubleshooting process simple and easy to operate, and greatly increasing the production efficiency of the product.

[0051] 2. The device clamps the workpiece 5 by pushing the movable plate 702 through the air push rod 802 under air pressure, thereby solving the problem of loose clamping of the workpiece caused by the traditional method of manually turning the handle to fix the workpiece, as well as the cumbersome process, which is not conducive to large-scale inspection of workpieces.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0053] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A workpiece air tightness detection device, comprising a frame (1), characterized in that: A hand-held frame (2) is fixedly mounted on both ends of the frame (1); an air intake assembly (3) is fixedly mounted on one end of the top of the hand-held frame (2); a plurality of sealing assemblies (4) are arranged in the inner cavity of the air intake assembly (3); a plurality of workpieces (5) are arranged on a side of the sealing assembly (4) away from the air intake assembly (3); one end of the sealing assembly (4) abuts against the inner cavity of the workpiece (5); the inner cavity of the workpiece (5) is communicated with the inner cavity of the air intake assembly (3); a plurality of first gaskets (6) are fixedly mounted on a side of the air intake assembly (3) close to the workpiece (5); The central axes of the first gasket (6) and the sealing component (4) are located on the same horizontal plane; a plurality of holding components (7) are fixedly mounted on one end of the frame (1) away from the air intake component (3); the number of the sealing components (4), the holding components (7) and the first gasket (6) corresponds to the number of the workpieces (5); a moving component (8) is fixedly mounted on one end of the holding component (7) away from the workpiece (5); the moving component (8) is fixedly mounted on the frame (1); and the inner cavities of the moving component (8) and the holding component (7) are in communication.

2. A workpiece air tightness detection device according to claim 1, characterized in that: A limiting block (101) for limiting the positions of the two ends of the workpiece (5) is fixedly mounted on the top of the frame (1).

3. A workpiece air tightness detection device according to claim 2, characterized in that: The air intake assembly (3) comprises an air intake port (301), and a ventilation barrel (302) is fixedly mounted on one end of the air intake port (301) close to the frame (1).

4. A workpiece air tightness detection device according to claim 3, characterized in that: The sealing assembly (4) comprises a support frame (401), the support frame (401) is fixedly mounted on the ventilation barrel (302), a sliding rod (402) is slidably mounted at the axis of the support frame (401), a fixed disk (403) is fixedly mounted on one end of the sliding rod (402), a second gasket (404) is arranged on the circumferential surface of one end of the fixed disk (403), a first airtight sheet (405) is fixedly mounted on the other end of the sliding rod (402), a first spring (406) is sleeved on the circumferential surface of the sliding rod (402), one end of the first spring (406) abuts against the support frame (401) and the other end abuts against the first airtight sheet (405); The central axis of the first airtight sheet (405) corresponds to the inner cavity of the air intake component (3), and the first gasket (6) corresponds to the inner cavity of the air intake component (3).

5. A workpiece air tightness detection device according to claim 4, characterized in that: The holding assembly (7) comprises a limit plate (701), the limit plate (701) is fixedly mounted on the top of the frame (1), a movable plate (702) is slidably mounted in the inner cavity of the limit plate (701), a movable rod (703) is slidably mounted on one end of the movable plate (702) close to the workpiece (5), a second spring (704) is sleeved on the circumferential surface of the movable rod (703), one end of the second spring (704) abuts against the movable plate (702) and the other end abuts against the inner cavity of the limit plate (701); the movable plate (702) is arranged in a triangular shape at one end close to the movable assembly (8).

6. A workpiece air tightness detection device according to claim 5, characterized in that: The moving component (8) includes a fixed barrel (801), which is fixedly mounted on the frame (1); a gas push rod (802) is arranged in the inner cavity of the fixed barrel (801); a sliding block (803) is fixedly mounted on one side of the gas push rod (802) and is slidably matched with the inner cavity of the fixed barrel (801); a sliding groove (804) is provided at one end of the gas push rod (802) close to the moving plate (702), so that the gas push rod (802) and the moving plate (702) are in a slidable fit; a third spring (805) is arranged at the other end of the gas push rod (802); one end of the third spring (805) abuts against the gas push rod (802) and the other end abuts against the inner cavity of the fixed barrel (801).

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