CN216081943U - Gas tightness detection tool and detection system - Google Patents
Gas tightness detection tool and detection system Download PDFInfo
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- CN216081943U CN216081943U CN202120920297.9U CN202120920297U CN216081943U CN 216081943 U CN216081943 U CN 216081943U CN 202120920297 U CN202120920297 U CN 202120920297U CN 216081943 U CN216081943 U CN 216081943U
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Abstract
The utility model discloses an air tightness detection tool and a detection system, wherein the air tightness detection tool comprises a base, a sealing mechanism and an air pressure sensing device, wherein a detection cavity for accommodating a wire harness detection end is arranged on the base, and the sealing mechanism is used for sealing the detection cavity; the air pressure sensing device is used for inflating and pressurizing the detection cavity to a preset air pressure value after the sealing mechanism seals the detection cavity, and then sensing the air pressure change in the detection cavity, so that the air tightness of the wire harness is judged. The air tightness detection tool provided by the utility model can detect the air tightness of the wire harness under different air pressures by adjusting different preset air pressure values, so that various detection requirements are met.
Description
Technical Field
The utility model relates to the technical field of production and detection of electronic products, in particular to an air tightness detection tool and a detection system.
Background
In the production of wire harnesses, the wire harnesses are often produced in batches, and sampling detection is carried out on each batch of wire harnesses, so that unqualified wire harnesses are discarded in time. Therefore, a corresponding detection system needs to be built in the production of the wire harness, the produced wire harness is subjected to targeted detection, and different detection systems can be provided with different detection tools for different wire harnesses. The general pencil all can carry out the gas tightness and detect, and traditional gas tightness detects often only can simply detect whether the pencil has the gas leakage phenomenon, considers rarely whether the pencil can keep good gas tightness under higher atmospheric pressure environment.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide an air tightness checking fixture, and aims to solve the problem that the traditional air tightness checking fixture cannot detect the air tightness of a wire harness under high air pressure.
In order to achieve the purpose, the utility model provides an air tightness checking fixture, which comprises:
the detection device comprises a base, a detection device and a control device, wherein the base is provided with a detection cavity, and the detection cavity is provided with a workpiece inlet so that a detection end of a wire harness enters the detection cavity from the workpiece inlet;
the sealing mechanism is arranged on the base and comprises a sealing cover which is movably arranged and a driving part for driving the sealing cover to move, the sealing cover is arranged corresponding to the workpiece inlet, and has a moving stroke close to and far away from the workpiece inlet under the driving of the driving part, and the sealing cover seals the detection cavity when being close to the workpiece inlet; and the number of the first and second groups,
the air pressure sensing device comprises a pressurizing mechanism and a sensor, wherein the sensor is arranged in the detection cavity, the pressurizing mechanism is communicated with the detection cavity, the pressurizing mechanism is used for inflating and pressurizing the detection cavity when the sealing cover seals the detection cavity, so that the air pressure in the detection cavity reaches a preset air pressure value, and the sensor is used for sensing the change of the air pressure in the detection cavity.
Optionally, the gas tightness testing fixture further comprises a detection piece, the detection piece is arranged in a cylindrical shape, one end of the detection piece is detachably connected with the base to form a detection cavity, and the other end of the detection piece is provided with the piece inlet.
Optionally, the airtightness detection tool further comprises a receiving plate, the receiving plate is arranged corresponding to the inlet, and the receiving plate is used for receiving the wiring harness located outside the detection cavity.
Optionally, the receiving plate is convexly provided with a supporting block, the sealing cover is provided with a clamping groove corresponding to the supporting block, the clamping groove is used for allowing the wiring harness to extend out to the outside, the supporting block is provided with a wire clamping groove penetrating through the supporting block, the wire clamping groove is provided with a notch facing the clamping groove, and the wire clamping groove is used for accommodating the part of the wiring harness extending out of the clamping groove.
Optionally, the airtightness detection tool further comprises two guide rods which are arranged on the base in a protruding manner along the vertical direction, and the bearing plate is movably arranged on the guide rods along the vertical direction so as to adjust the position of the bearing plate along the vertical direction.
Optionally, the airtightness testing fixture further comprises an elastic gasket arranged on the sealing cover, and the elastic gasket is arranged on a contact surface between the sealing cover and the detection cavity.
Optionally, the driving part includes an air cylinder in driving connection with the sealing cover, and the air cylinder is disposed above the sealing cover.
Optionally, the airtightness testing fixture further comprises:
the display is electrically connected with the sensor and used for displaying the air pressure change sensed by the sensor in the detection cavity;
the first switch is used for triggering a working signal when being pressed by external force;
a second switch for triggering a stop signal when pressed by an external force; and the number of the first and second groups,
the controller, the controller with first switch, the second switch, atmospheric pressure sensing device and drive part do not electric connection, with when the controller receives operating signal, through control the drive division drive sealed lid moves to sealing towards the income piece mouth detect the chamber, control the pressurization mechanism towards detect the intracavity aerify pressurize to predetermineeing the atmospheric pressure value, and when the controller sensing detects stop signal, control the drive division drive sealed lid is kept away from the income piece mouth.
Optionally, the air tightness gauge further comprises an alarm sensor, and the alarm sensor is used for triggering an alarm signal when sensing that an external object approaches the inlet;
the controller is electrically connected with the alarm inductor to control the driving part to drive the sealing cover to be far away from the workpiece inlet when the controller receives the alarm signal.
The utility model also provides a detection system, which comprises an air tightness detection tool, wherein the air tightness detection tool comprises:
the detection device comprises a base, a detection device and a control device, wherein the base is provided with a detection cavity, and the detection cavity is provided with a workpiece inlet so that a detection end of the wire harness enters the detection cavity from the workpiece inlet;
the sealing mechanism is arranged on the base and comprises a sealing cover which is movably arranged and a driving part for driving the sealing cover to move, the sealing cover is arranged corresponding to the workpiece inlet, and has a moving stroke close to and far away from the workpiece inlet under the driving of the driving part, and the sealing cover seals the detection cavity when being close to the workpiece inlet; and the number of the first and second groups,
the air pressure sensing device comprises a pressurizing mechanism and a sensor, wherein the sensor is arranged in the detection cavity, the pressurizing mechanism is communicated with the detection cavity, the pressurizing mechanism is used for inflating and pressurizing the detection cavity when the sealing cover seals the detection cavity, so that the air pressure in the detection cavity reaches a preset air pressure value, and the sensor is used for sensing the change of the air pressure in the detection cavity.
According to the technical scheme, the detection cavity is connected with the pressurizing mechanism and then sealed through the sealing cover, so that a closed high-pressure environment is manufactured. When the pressurizing mechanism inflates and pressurizes the detection cavity, gas can only flow to the other end of the wire harness through the detection end of the wire harness in a sealed environment and can flow to the outside, so that the sensor is arranged in the detection cavity to sense the change of air pressure, and when the pressurizing mechanism stops pressurizing, if the sensor senses that the air pressure is reduced, the air tightness of the wire harness under the air pressure is poor; if the sensor senses that the air pressure is stable, the air tightness of the wiring harness is good. The air tightness detection tool provided by the utility model can detect the air tightness of the wire harness under different air pressures by adjusting different preset air pressure values, so that various detection requirements are met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic partial structural view of an embodiment of an air-tightness test fixture provided by the present invention;
FIG. 2 is an enlarged view of FIG. 1A;
fig. 3 is a schematic perspective view of an air pressure sensing device in the air tightness gauge of fig. 1.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
11 | Detection cavity |
| 12 | |
20 | Sealing cover |
| 21 | Driving part | 22 | |
| 23 | |
30 | |
| 31 | |
32 | Supporting |
| 33 | |
40 | Air |
| 41 | |
42 | Alarm inductor |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
In the production of wire harnesses, the wire harnesses are often produced in batches, and sampling detection is carried out on each batch of wire harnesses, so that unqualified wire harnesses are discarded in time. Therefore, a corresponding detection system needs to be built in the production of the wire harness, the produced wire harness is subjected to targeted detection, and different detection systems can set different air tightness detection tools for different wire harnesses. The general pencil all can carry out the gas tightness and detect, and traditional gas tightness detects often only can simply detect whether the pencil has the gas leakage phenomenon, considers rarely whether the pencil can keep good gas tightness under higher atmospheric pressure environment.
In view of this, the present invention provides a detection system, which includes an air-tightness testing fixture, and the detection system of the present invention is provided as long as the detection system includes the air-tightness testing fixture, and fig. 1 to 3 are specific embodiments of the air-tightness testing fixture provided by the present invention.
Referring to fig. 1 to 3, the air tightness testing fixture includes: the wire harness detection device comprises a base 10, a sealing mechanism and an air pressure sensing device 40, wherein the base 10 is provided with a detection cavity 11, the detection cavity 11 is provided with a workpiece inlet 12, and a detection end of the wire harness enters the detection cavity 11 from the workpiece inlet 12; the sealing mechanism is arranged on the base 10, the sealing mechanism comprises a sealing cover 20 which is movably arranged and a driving part 21 which is used for driving the sealing cover 20 to move, the sealing cover 20 is arranged corresponding to the workpiece inlet 12, under the driving of the driving part 21, the sealing mechanism has a moving stroke which is close to and far away from the workpiece inlet 12, and when the sealing mechanism is close to the workpiece inlet 12, the sealing cover 20 seals the detection cavity 11; the air pressure sensing device 40 comprises a pressurizing mechanism and a sensor, the sensor is arranged in the detection cavity 11, the pressurizing mechanism is communicated with the detection cavity 11, the pressurizing mechanism is used for inflating and pressurizing the detection cavity 11 when the sealing cover 20 seals the detection cavity 11, so that the air pressure in the detection cavity 11 reaches a preset air pressure value, and the sensor is used for sensing the air pressure change in the detection cavity 11.
In the technical scheme of the utility model, the detection cavity 11 is connected with the pressurizing mechanism, and then the detection cavity 11 is sealed by the sealing cover 20, so that a closed high-pressure environment is manufactured. When the pressurizing mechanism inflates and pressurizes the detection cavity 11, gas can only flow to the other end of the wire harness through the detection end of the wire harness in a sealed environment and can flow to the outside, so that the sensor is arranged in the detection cavity 11 to sense the change of air pressure, and when the pressurizing mechanism stops pressurizing, if the sensor senses that the air pressure is reduced, the air tightness of the wire harness is poor under the air pressure; if the sensor senses that the air pressure is stable, the air tightness of the wiring harness is good. The air tightness detection tool provided by the utility model can detect the air tightness of the wire harness under different air pressures by adjusting different preset air pressure values, so that various detection requirements are met.
Further, please refer to fig. 3, the gas tightness testing fixture further includes a detecting member, the detecting member is disposed in a cylindrical shape, one end of the detecting member is detachably connected to the base 10 to form a detecting cavity 11, and the other end of the detecting member is provided with the inlet 12.
In this embodiment, one end of the detection member is detachably connected to the base 10, so that only the other end of the detection member is provided with an opening, and the opening at this end forms the member inlet 12, the specific structure of the detection chamber 11 in this embodiment is one of the specific embodiments of the present invention, and the detection member is detachably connected to the base 10, so that different detection chambers 11 can be replaced by replacing different detection members, thereby satisfying different detection requirements.
Further, the air tightness gauge further comprises a receiving plate 30, the receiving plate 30 is arranged corresponding to the inlet 12, and the receiving plate 30 is used for receiving the wiring harness located outside the detection cavity 11.
In this embodiment, the receiving plate 30 is configured to receive the wiring harness located outside the detection chamber 11, except for a detection end located in the detection chamber 11, other leaked portions of the wiring harness are located outside the detection chamber 11, and the leaked portions of the wiring harness are at risk of damage, and damage of the wiring harness during detection may cause inaccurate detection results and waste, so that the air-tightness detection tool is provided with the receiving plate 30 to appropriately protect the leaked portions.
Further, referring to fig. 1 to 2, a supporting block 32 is convexly disposed on the receiving plate 30, a locking groove 23 is disposed on the sealing cover 20 corresponding to the supporting block 32, the locking groove 23 is used for the wire harness to extend out to the outside, a locking groove 33 penetrating through the supporting block 32 is disposed on the supporting block 32, the locking groove 33 has a notch facing the locking groove 23, and the locking groove 33 is used for receiving a portion of the wire harness extending out of the locking groove 23.
In this embodiment, the supporting block 32 is convexly disposed on the receiving plate 30, the locking groove 23 is disposed on the sealing cover 20 corresponding to the supporting block 32, so that the wire harness extends out of the locking groove 23 from the detection cavity 11 to extend out toward the supporting block 32, and the wire clamping groove 33 penetrating through the supporting block 32 has a notch facing the locking groove 23, so that the wire harness can extend out of the detection cavity 11 to the wire clamping groove 33, the possibility that the wire harness is damaged due to influence is reduced, and the effects of improving the detection accuracy and reducing waste are achieved.
Further, referring to fig. 1, the air-tightness testing fixture further includes two guide rods 31 protruding from the base 10 along the vertical direction, and the receiving plate 30 is movably disposed on the guide rods 31 along the vertical direction to adjust the position of the receiving plate 30 along the vertical direction.
In the present embodiment, the up-down direction is an installation direction of the guide rod 31, and is not an absolute up-down direction. The receiving plate 30 is movably disposed on the guide rod 31 along the vertical direction, so that the receiving plate 30 can adjust the position on the guide rod 31 along the vertical direction, and the receiving plate 30 can be matched with the detection cavities 11 and the inlet 12 with different sizes, thereby meeting more detection requirements.
Further, referring to fig. 2, the air-tightness testing fixture further includes an elastic gasket 22 disposed on the sealing cover 20, and the elastic gasket 22 is disposed on a contact surface between the sealing cover 20 and the testing cavity 11.
In this embodiment, the sealing cover 20 abuts against the detection cavity 11 to seal the detection cavity 11 each time the sealing cover 20 seals the detection cavity 11, the sealing cover 20 may be worn after multiple collisions, the detection accuracy of the air-tightness detection tool may be reduced due to the wear of the sealing cover 20, and even the sealing cover 20 may not seal the detection cavity 11 subsequently, so in this embodiment, an elastic gasket 22 is disposed on a contact surface between the sealing cover 20 and the detection cavity 11, and the sealing cover 20 obtains a certain buffer through the elastic gasket 22, thereby protecting the sealing cover 20 and the detection cavity 11.
Further, utensil is examined to gas tightness still includes: display 41, first switch, second switch and controller. The display 41 is electrically connected to the sensor, and the display 41 is used for displaying the air pressure change sensed by the sensor in the detection cavity 11; the first switch is used for triggering a working signal when being pressed by external force; the second switch is used for triggering a stop signal when being pressed by external force; the controller is electrically connected to the first switch, the second switch, the air pressure sensing device 40 and the driving portion 21 respectively, so that when the controller receives the working signal, the driving portion 21 is controlled to drive the sealing cover 20 to move towards the workpiece inlet 12 to seal the detection cavity 11, the pressurizing mechanism is controlled to inflate and pressurize the detection cavity 11 to a preset air pressure value, and when the controller senses the stop signal, the driving portion 21 is controlled to drive the sealing cover 20 to be away from the workpiece inlet 12.
In this embodiment, the controller is configured to correspondingly control the structure electrically connected to the controller when receiving different signals. When the controller receives the working signal, the driving part 21 is controlled to drive the sealing cover 20 to move towards the workpiece inlet 12 to seal the detection cavity 11, and the pressurizing mechanism is controlled to inflate and pressurize the detection cavity 11 to a preset air pressure value; when the controller senses the stop signal, the controller controls the driving part 21 to drive the sealing cover 20 to be away from the inlet 12. In this embodiment, the various switches, sensors and the controller are conventional structures in the prior art, and the detailed structure thereof is not described herein.
Further, referring to fig. 1, the air tightness testing fixture further includes an alarm sensor 42, where the alarm sensor 42 is configured to trigger an alarm signal when sensing that an external object is close to the inlet 12; the controller is electrically connected to the alarm sensor 42, so that when the controller receives the alarm signal, the controller controls the driving part 21 to drive the sealing cover 20 to be away from the workpiece inlet 12.
The sealing cover 20 seals the detection cavity 11 by abutting against the detection cavity 11, and when the sealing cover 20 moves towards the detection cavity 11, the sealing cover 20 may press sundries or the hand of a user, so that a certain safety risk exists. Therefore, in the present embodiment, an alarm sensor 42 is provided, and the alarm sensor 42 triggers an alarm signal when sensing that an external object approaches the inlet 12, so as to prevent the sealing cover 20 from pressing other objects and prevent safety accidents. The specific structure of the alarm sensor 42 is a conventional structure in the prior art, and the specific structure is not described herein.
Specifically, referring to fig. 1, the driving portion 21 includes an air cylinder in driving connection with the sealing cover 20, and the air cylinder is disposed above the sealing cover 20. In the present embodiment, the driving portion 21 is a cylinder drivingly connected to the sealing cover 20, but this does not mean that the driving portion 21 is only the cylinder, and the driving portion 21 may also be a hydraulic device as long as the driving portion 21 can drive the sealing cover 20.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides an utensil is examined to gas tightness which characterized in that includes:
the detection device comprises a base, a detection device and a control device, wherein the base is provided with a detection cavity, and the detection cavity is provided with a workpiece inlet so that a detection end of a wire harness enters the detection cavity from the workpiece inlet;
the sealing mechanism is arranged on the base and comprises a sealing cover which is movably arranged and a driving part for driving the sealing cover to move, the sealing cover is arranged corresponding to the workpiece inlet, and has a moving stroke close to and far away from the workpiece inlet under the driving of the driving part, and the sealing cover seals the detection cavity when being close to the workpiece inlet; and the number of the first and second groups,
the air pressure sensing device comprises a pressurizing mechanism and a sensor, wherein the sensor is arranged in the detection cavity, the pressurizing mechanism is communicated with the detection cavity, the pressurizing mechanism is used for inflating and pressurizing the detection cavity when the sealing cover seals the detection cavity, so that the air pressure in the detection cavity reaches a preset air pressure value, and the sensor is used for sensing the change of the air pressure in the detection cavity.
2. The airtightness detection tool according to claim 1, further comprising a detection member, wherein the detection member is arranged in a cylindrical shape, one end of the detection member is detachably connected to the base to form a detection cavity, and the other end of the detection member is provided with the workpiece inlet.
3. The gas tightness testing fixture according to claim 1, further comprising a receiving plate disposed corresponding to the inlet, wherein the receiving plate is configured to receive the wiring harness located outside the testing chamber.
4. The airtightness testing fixture according to claim 3, wherein a support block is protruded from the receiving plate, a locking groove for allowing the wire harness to extend to the outside is provided in the sealing cover corresponding to the support block, a locking groove extending through the support block is provided in the support block, the locking groove has a notch facing the locking groove, and the locking groove is configured to receive a portion of the wire harness extending from the locking groove.
5. The airtightness detection tool according to claim 3, further comprising two guide rods protruding from the base in the up-down direction, wherein the receiving plate is movably disposed on the guide rods in the up-down direction, so as to adjust the position of the receiving plate in the up-down direction.
6. The gas-tightness testing fixture according to claim 1, further comprising an elastic gasket disposed on the sealing cover, wherein the elastic gasket is disposed on a contact surface of the sealing cover and the testing cavity.
7. The gas tightness gauge according to claim 1, wherein said driving portion comprises a cylinder drivingly connected to said sealing cap, said cylinder being disposed above said sealing cap.
8. The gas tightness gauge of claim 1, further comprising:
the display is electrically connected with the sensor and used for displaying the air pressure change sensed by the sensor in the detection cavity;
the first switch is used for triggering a working signal when being pressed by external force;
a second switch for triggering a stop signal when pressed by an external force; and the number of the first and second groups,
the controller, the controller with first switch, the second switch, atmospheric pressure sensing device and drive part do not electric connection, with when the controller receives operating signal, through control the drive division drive sealed lid moves to sealing towards the income piece mouth detect the chamber, control the pressurization mechanism towards detect the intracavity aerify pressurize to predetermineeing the atmospheric pressure value, and when the controller sensing detects stop signal, control the drive division drive sealed lid is kept away from the income piece mouth.
9. The gas tightness gauge according to claim 8, further comprising an alarm sensor for triggering an alarm signal when sensing that an external object is approaching the inlet;
the controller is electrically connected with the alarm inductor to control the driving part to drive the sealing cover to be far away from the workpiece inlet when the controller receives the alarm signal.
10. A test system comprising the air-tightness test tool of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120920297.9U CN216081943U (en) | 2021-04-29 | 2021-04-29 | Gas tightness detection tool and detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120920297.9U CN216081943U (en) | 2021-04-29 | 2021-04-29 | Gas tightness detection tool and detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216081943U true CN216081943U (en) | 2022-03-18 |
Family
ID=80635315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120920297.9U Active CN216081943U (en) | 2021-04-29 | 2021-04-29 | Gas tightness detection tool and detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216081943U (en) |
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2021
- 2021-04-29 CN CN202120920297.9U patent/CN216081943U/en active Active
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