CN113607349B - Air tightness detection equipment, clamping jig and clamping method thereof - Google Patents
Air tightness detection equipment, clamping jig and clamping method thereof Download PDFInfo
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- CN113607349B CN113607349B CN202111060170.5A CN202111060170A CN113607349B CN 113607349 B CN113607349 B CN 113607349B CN 202111060170 A CN202111060170 A CN 202111060170A CN 113607349 B CN113607349 B CN 113607349B
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- 238000001514 detection method Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 15
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 11
- 238000004512 die casting Methods 0.000 description 10
- 230000008901 benefit Effects 0.000 description 9
- 239000002184 metal Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007123 defense Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses air tightness detection equipment, a clamping jig and a clamping method thereof. The clamping jig comprises a jig body, a first clamping assembly, a second clamping assembly and a detachable clamping assembly. The first clamping assembly and the second clamping assembly are arranged on the jig body at intervals, at least one of the first clamping assembly and the second clamping assembly can block an opening of a product to be tested, and at least one of the first clamping assembly and the second clamping assembly is correspondingly provided with an air inlet for being communicated with the air tightness detection instrument. The detachable clamping assembly includes a movable displacement member. When the first clamping component moves to a clamping position in a direction approaching to the second clamping component, the moving piece is driven by the first clamping component to move for a preset distance so as to drive the product to be tested to move to the second clamping component, so that the product to be tested is clamped and the opening is blocked. According to the air tightness detection equipment, the clamping jig and the clamping method thereof, the product to be detected is convenient and firm to clamp.
Description
Technical Field
The invention relates to the field of air tightness detection devices, in particular to air tightness detection equipment, a clamping jig and a clamping method thereof.
Background
The die casting is a metal product prepared by applying high pressure to molten metal through an inner cavity of a die casting die, and is widely applied to various fields such as transportation, electronic communication, national defense industry and the like.
However, since metal, particularly alloy products, may generate cracks which are invisible to the naked eye due to various reasons such as thermal stress or shrinkage during the process of processing and molding, the cracked alloy products cannot be used as certain products having air tightness requirements, such as waterproof products. Therefore, the die casting product with the air tightness requirement generally needs to be subjected to air tightness detection after being prepared and molded so as to ensure that the product can be applied to the market after being qualified. The gas tightness of product detects, especially has open-ended die-casting product's gas tightness detects, not only needs gas tightness detecting instrument, still needs clamping tool, just makes things convenient for follow-up detection after with the product that awaits measuring motionless and the opening shutoff. However, the conventional air tightness detection device has a plurality of problems, for example, when the die-casting product to be detected is clamped, the installation space of the die-casting product to be detected is limited by an air tightness detection instrument and/or an opening plugging piece, so that more inconvenience is brought to the clamping of the die-casting product to be detected, the clamping of the die-casting product to be detected is inconvenient, and more time is required to be consumed. For example, the clamping is not firm, so that the die-casting product to be detected may slightly shake in the detection process of the air tightness detector, the air tightness detection result of the die-casting product is greatly influenced, and the detection accuracy is low.
Disclosure of Invention
The invention has the advantages that the air tightness detection equipment, the clamping jig and the clamping method thereof are provided, and the clamping of the product to be detected is convenient and firm.
The invention has the advantages that the air tightness detection equipment, the clamping jig and the clamping method thereof are provided, wherein the product to be detected can automatically pop up after detection is completed, the next product to be detected is convenient to replace, and the detection efficiency is high.
The invention has the advantages that the air tightness detection equipment, the clamping jig and the clamping method thereof can detect a plurality of cavities of the product to be detected at one time, and the detection efficiency is high.
The invention has the advantages that the air tightness detection equipment, the clamping jig and the clamping method thereof are provided, wherein the clamping guide rail can accurately guide the first clamping assembly to the position capable of sealing the opening of the product to be detected, and the detection accuracy of the product to be detected is ensured.
To achieve at least one of the above advantages, one advantage of the present invention is to provide a clamping fixture for an airtight product to be tested, comprising: a jig body; the first clamping assembly and the second clamping assembly are arranged on the jig body at intervals, a clamping area is formed between the first clamping assembly and the second clamping assembly, at least one of the first clamping assembly and the second clamping assembly can block an opening of a product to be tested, and at least one of the first clamping assembly and the second clamping assembly is correspondingly provided with an air inlet for being communicated with an air tightness detection instrument; the detachable clamping assembly is detachably arranged on the jig body and comprises a movable part which is used for being connected with the product to be tested to drive the product to be tested to move, and when the detachable clamping assembly is arranged on the jig body, the product to be tested is positioned in the clamping area; the first clamping assembly can move towards the direction close to or far away from the second clamping assembly, and when the first clamping assembly moves towards the direction close to the second clamping assembly to a clamping position, the moving piece is driven by the first clamping assembly to move for a preset distance so as to drive the product to be tested to move to the second clamping assembly, so that the product to be tested is clamped and the opening is blocked.
According to an embodiment of the invention, the detachable clamping assembly comprises a clamping piece, a through hole for the product to be tested to pass through is formed in the moving piece, a clamping cavity which can clamp the product to be tested and is communicated with the through hole is formed in the clamping piece, and a second clamping assembly assembling hole communicated with the clamping cavity is formed in the clamping piece.
According to an embodiment of the invention, the height of the clamping cavity is larger than the height of the product to be tested, and the second clamping assembly assembling opening is formed in the side wall of the clamping piece and penetrates through one end portion of the clamping piece.
According to an embodiment of the invention, the detachable clamping assembly comprises an elastic member mounted between the moving member and the clamping member, the elastic member being configured to be in a compressed state when the first clamping assembly is in the clamping position and to be restored when the first clamping assembly is away from the clamping position.
According to an embodiment of the present invention, at least one of the first clamping component and the second clamping component is correspondingly formed with an annular sealing groove into which the product to be tested is embedded.
According to an embodiment of the present invention, a plurality of air inlets are formed on at least one of the first clamping assembly and the second clamping assembly, wherein the air inlets are arranged at intervals.
According to one embodiment of the invention, the clamping guide rail comprises a clamping guide rail extending along a fixed track, and the first clamping assembly is slidably mounted on the clamping guide rail.
According to an embodiment of the invention, the clamping driving assembly comprises a driving rod and a clamping rod, the driving rod is rotatably arranged on the jig body, the clamping rod is movably arranged on the jig body, one end of the clamping rod is connected with the first clamping assembly, and the other end of the clamping rod is connected with the driving rod so as to move along with the rotation of the driving rod, so that the first clamping assembly is driven to move.
According to an embodiment of the invention, the fixture comprises a positioning assembly, wherein the positioning assembly is arranged on the fixture body and comprises at least two positioning blocks which are arranged at intervals, and the second clamping assembly and the first clamping assembly are positioned in an interval area between the at least two positioning blocks.
In order to achieve at least one of the above advantages, the invention provides a clamping method of an airtight product to be tested, comprising the following steps: installing a product to be tested on a moving piece of the detachable clamping assembly; installing the separable clamping assembly on the jig body so that the product to be tested is positioned in a clamping area formed between the first clamping assembly and the second clamping assembly; and driving the first clamping assembly to move to a clamping position in a direction approaching the second clamping assembly, so that the moving piece is driven to move a preset distance in a direction approaching the second clamping assembly, the product to be tested is driven to move to the second clamping assembly, the product to be tested is clamped, and the opening of the product to be tested is blocked by the first clamping assembly and/or the second clamping assembly.
To achieve at least one of the above advantages, the present invention provides an air tightness detection device, including the clamping jig and the air tightness detection instrument as described above, wherein the air tightness detection instrument is communicated with the air inlet to detect air tightness of the product to be detected.
Drawings
Fig. 1 shows a schematic diagram of the working state of a clamping fixture for a product to be tested with air tightness according to an embodiment of the invention.
Fig. 2 shows an exploded view of a clamping jig for an airtight product to be tested according to an embodiment of the present invention.
Fig. 3 shows a schematic view of the first clamping assembly of the present invention.
Fig. 4 shows a schematic structural view of the detachable clamping assembly of the present invention.
Fig. 5 shows a schematic view of the structure of the clamping rail according to the invention.
Fig. 6 shows a schematic structural view of the clamping drive assembly of the present invention.
Fig. 7 shows a schematic structural diagram of the fixture body and the positioning assembly of the present invention.
Reference numerals:
10: product to be measured, 101: an opening;
20: a jig body;
30: first clamping assembly, 301: air inlet, 32: sealing grooves;
40: a second clamping assembly;
50: separable clamping assembly, 51: moving member 5101: wearing mouth, 52: clamping piece, 5201: clamping cavity, 5202: second clamping assembly fitting opening, 5203: peripheral wall port, 53: an elastic member;
60: clamping a guide rail;
70: clamping drive assembly, 71: a drive rod, 72: a clamping rod;
80: positioning assembly, 81: and (5) positioning blocks.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present invention.
It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.
Referring to fig. 1 to 7, a clamping jig for an airtight product to be tested according to a preferred embodiment of the present invention will be described in detail below, wherein a cavity is formed in the product to be tested 10, and at least one end of the product to be tested 10 is formed with an opening 101 communicating with the cavity. For example, the top of the product 10 to be tested is formed with the opening 101. The bottom of the product under test 10 is formed with the opening 101. Or the openings 101 are formed at both the top and bottom of the product 10 to be tested.
Referring to fig. 1 to 2, the clamping jig includes a jig body 20, a first clamping assembly 30, a second clamping assembly 40, and a detachable clamping assembly 50.
The first clamping assembly 30 and the second clamping assembly 40 are arranged on the jig body 20 at intervals, and a clamping area is formed between the first clamping assembly 30 and the second clamping assembly 40. At least one of the first clamping assembly 30 and the second clamping assembly 40 may block the opening 101 of the product 10 under test. Referring to fig. 3, at least one of the first clamping assembly 30 and the second clamping assembly 40 is correspondingly formed with an air inlet 301 for communicating with an air tightness detecting instrument for air tightness detection.
It should be understood that at least one of the first clamping component 30 and the second clamping component 40 is correspondingly formed with an air inlet 301, which mainly means that the first clamping component 30 and/or the second clamping component 40 that close the opening 101 is correspondingly provided with the air inlet 301. Illustratively, when the first clamping assembly 30 is positioned above the second clamping assembly 40, the first clamping assembly 30 may be formed with the air inlet 301 when the opening 101 is formed on top of the product under test 10. The second clamping assembly 40 may be formed with the air inlet 301 when the opening 101 is formed at the bottom of the product under test 10. When the opening 101 is formed at both the bottom and the top of the product under test 10, the first clamping assembly 30 and/or the second clamping assembly 40 may be formed with the air inlet 301.
The detachable clamping assembly 50 is detachably mounted to the jig body 20. The detachable clamping assembly 50 includes a movable member 51, which is connected to the product 10 to be tested to drive the product 10 to be tested to move. When the detachable clamping assembly 50 is installed on the jig body 20, the product 10 to be tested is located in the clamping area. The first clamping assembly 30 is movable in a direction toward or away from the second clamping assembly 40. When the first clamping assembly 30 is moved to a clamping position in a direction toward the second clamping assembly 40. The moving member 51 is driven by the first clamping assembly 30 to move by a predetermined distance, so as to drive the product 10 to be tested to move to the second clamping assembly 40, so that the product 10 to be tested is clamped by the first clamping assembly 30 and the second clamping assembly 40, and the opening 101 is correspondingly blocked by the first clamping assembly 30 and/or the second clamping assembly 40, so that air tightness detection is facilitated.
In this way, the clamping method of the product to be tested 10 includes the following steps:
(1) When the tightness detection is not performed, the separable clamping assembly 50 is in a separated state from the jig body 20. At this time, the product 10 to be tested is mounted on the detachable clamping assembly 50, the mounting space of the product 10 to be tested is large, and the clamping of the product 10 to be tested is not affected by the size of the clamping area, so that the clamping of the product 10 to be tested is facilitated.
(2) The detachable clamping assembly 50 is mounted on the jig body 20, and at the same time, the product 10 to be measured mounted on the moving member 51 of the detachable clamping assembly 50 is correspondingly mounted on the clamping area formed between the first clamping assembly 30 and the second clamping assembly 40.
(3) The first clamping assembly 30 is driven to move to a clamping position in a direction toward the second clamping assembly 40. In this process, after the first clamping assembly 30 contacts the moving member 51, the moving member 51 is driven to move a predetermined distance in a direction approaching the second clamping assembly 40. In this way, the product 10 to be tested is also driven to move in a direction approaching to the second clamping assembly 40, when the product 10 to be tested is driven to move until the second clamping assembly 40 and the second clamping assembly 40 are in contact and cannot move further, the product 10 to be tested is clamped between the first clamping assembly 30 and the second clamping assembly 40, and the opening 101 of the product 10 to be tested is blocked by the first clamping assembly 30 and/or the second clamping assembly 40. Therefore, the clamping jig for the air tightness product 10 to be tested can quickly and efficiently realize the installation and clamping of the product 10 to be tested, and the clamping is firm.
After the clamping is completed, the air tightness detecting instrument inflates the cavity of the product 10 to be detected through the air inlet 301, and after the inflation is completed, the air tightness of the product 10 to be detected is determined by detecting the pressure change in the cavity. After the inspection is completed, the first clamping assembly 30 is moved away from the second clamping assembly 40. And separating the separable clamping assembly 50 from the jig body 20 again, taking out the product 10 to be tested, and assembling the next product 10 to be tested to the separable clamping assembly 50, so as to facilitate the detection of the next product 10 to be tested.
Preferably, referring to fig. 1, 2 and 4, the separable clamping assembly 50 includes a clamping member 52. A through hole 5101 through which the product 10 to be tested can be inserted is formed in the moving member 51. The clamping piece 52 is internally provided with a clamping cavity 5201 which can clamp the product 10 to be tested and is communicated with the through hole 5101, and the clamping piece 52 is provided with a second clamping assembly assembling hole 5202 which is communicated with the clamping cavity 5201. Therefore, when the product to be tested 10 is installed, the product to be tested 10 can be assembled in the clamping cavity 5201 after passing through the through hole 5101, and then the second clamping assembly 40 is assembled from the second clamping assembly assembling hole 5202 of the detachable clamping assembly 50 so as to facilitate the subsequent clamping of the product to be tested 10 and the sealing of the opening 101 of the product to be tested 10. In this way, the product to be tested 10 can be quickly assembled to the detachable clamping assembly 50, and then stably assembled to the jig body 20 by the detachable clamping assembly 50.
Further preferably, the height of the clamping cavity 5201 is greater than the height of the product 10 to be tested, so that a certain distance is still kept from the bottom of the clamping cavity 5201 after the product 10 to be tested is loaded into the clamping cavity 5201. The second clamping assembly fitting 5202 is formed at a side wall of the clamping piece 52 and penetrates an end portion of the clamping piece 52. Therefore, when the detachable clamping assembly 50 is assembled to the jig body 20 from right to left, the second clamping assembly 40 can be naturally gradually assembled into the clamping cavity 5201 from right to left, which is fast and convenient.
Further preferably, the peripheral wall of the holder 52 is formed with a plurality of peripheral wall openings 5203. Therefore, the weight of the detachable clamping assembly 50 is reduced, the detachable clamping piece 52 is conveniently installed or detached from the jig body 20, and the product 10 to be detected positioned in the detachable clamping assembly is conveniently observed, so that the detachable clamping assembly can be timely adjusted when accidents occur in detection.
Preferably, the separable clamping assembly 50 includes an elastic member 53. The elastic member 53 is installed between the moving member 51 and the clamping member 52. The resilient member 53 is configured to be in a compressed state when the first clamping assembly 30 is in the clamping position and to return to its original state when the first clamping assembly 30 is out of the clamping position. Thus, when the first clamping assembly 30 is away from the clamping position, the elastic member 53 can drive the moving member 51 to move away from the second clamping assembly 40. In this way, the product 10 to be tested can be automatically moved away from the second clamping assembly 40. Therefore, the detachable clamping assembly 50 can be conveniently and rapidly separated from the jig body 20 and the second clamping assembly 40 by moving the detachable clamping assembly 50 from left to right, so that the subsequent replacement of the product 10 to be tested is facilitated.
Preferably, referring to fig. 1,2 and 3, at least one of the first clamping assembly 30 and the second clamping assembly 40 is correspondingly formed with a sealing groove 32 into which the product 10 to be measured is inserted. The sealing groove 32 can seal the opening 101 of the product 10 to be tested, so as to ensure the accuracy of the air tightness detection instrument in air tightness detection.
It may be appreciated that the sealing groove 32 into which the product 10 to be tested is inserted is correspondingly formed on at least one of the first clamping assembly 30 and the second clamping assembly 40, which mainly means that the sealing groove 32 is correspondingly provided on the first clamping assembly 30 and/or the second clamping assembly 40 that seals the opening 101. Specifically, when the first clamping assembly 30 is positioned above the second clamping assembly 40 and the opening 101 is formed at the top of the product under test 10, the first clamping assembly 30 may be formed with the sealing groove 32. The second clamping assembly 40 may be formed with the sealing groove 32 when the opening 101 is formed at the bottom of the product under test 10. When the openings 101 are formed at both the bottom and the top of the product under test 10, the first clamping assembly 30 and/or the second clamping assembly 40 may be formed with the sealing groove 32.
Further, an annular sealing ring is disposed in the sealing groove 32.
Preferably, at least one of the first clamping assembly 30 and the second clamping assembly 40 is formed with a plurality of air inlets 301 disposed at intervals. It is understood that the plurality refers to two as well as more than two, for example, two, three, four, etc. Therefore, the air tightness detection instrument can detect two cavities of the product 10 to be detected at one time, and the detection efficiency is improved. Illustratively, when the first clamping assembly 30 is positioned above the second clamping assembly 40 and the opening 101 is formed on top of the product under test 10, the first clamping assembly 30 may be formed with a plurality of air inlets 301. When the opening 101 is formed at the bottom of the product under test 10, the second clamping assembly 40 may be formed with a plurality of air inlets 301. When the openings 101 are formed at the bottom and top of the product 10 to be measured, the first and second clamping members 30 and 40 may each be formed with a plurality of the air inlets 301, or one of the first and second clamping members 30 and 40 may be formed with a plurality of the air inlets 301.
Preferably, referring to fig. 1,2 and 5, the clamping jig includes a clamping guide rail 60 disposed on the jig body 20. The clamping guide rail 60 extends along a fixed track, for example, extends along an up-down direction, and the first clamping assembly 30 is mounted on the clamping guide rail 60, so that the first clamping assembly 30 is limited on the clamping guide rail 60, so that the first clamping assembly 30 moves along the fixed track, for example, moves along the up-down direction, the first clamping assembly 30 accurately seals the opening 101 of the product 10 to be tested, and particularly, the sealing groove 32 can accurately seal the opening 101, thereby ensuring the detection accuracy of the product 10 to be tested.
Preferably, referring to fig. 1,2 and 6, the clamping fixture includes a clamping drive assembly 70. The clamping drive assembly 70 includes a drive rod 71 and a clamping rod 72. The driving rod 71 is rotatably disposed on the jig body 20. The clamping rod 72 is movably disposed on the jig body 20. The clamping rod 72 has one end connected to the first clamping assembly 30 and the other end connected to the driving rod 71 to move along with the rotation of the driving rod 71, so as to drive the first clamping assembly 30 to move away from or toward the second clamping assembly 40. Therefore, the driving rod 71 is rotated to move downwards, so that the product 10 to be tested can be clamped and plugged, and the clamping and plugging are simple and efficient.
Preferably, referring to fig. 1,2 and 7, the clamping fixture further includes a positioning assembly 80 disposed on the fixture body 20. The positioning assembly 80 includes at least two positioning blocks 81 disposed at intervals, and the second clamping assembly 40 and the first clamping assembly 30 are disposed at spaced apart regions between the at least two positioning blocks 81. From this, separable clamping subassembly 50 from right to left removes the assembly to when the tool body 20, second clamping subassembly 40 with first clamping subassembly 30 can be aimed at fast the opening 101 of product under test 10, so that accurate shutoff opening 101, especially seal groove 32 can be accurate sealed opening 101 guarantees the detection accuracy of gas tightness detecting instrument.
According to an aspect of the present invention, the present invention further provides an air tightness detecting apparatus including the clamping jig and the air tightness detecting instrument as described above, the air tightness detecting instrument being in communication with the air inlet 301 to detect air tightness of the product 10 to be detected. The air tightness detecting instrument may include an air pump and a pressure detector. The air tightness detecting instrument inflates the cavity of the product to be detected 10 through the air inlet 301, and detects the pressure change in the cavity through the pressure detector after the inflation is completed to determine the air tightness of the product to be detected 10. The airtightness detection apparatus according to the embodiment of the present invention may have various options in the prior art, and will not be described in detail herein.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are by way of example only and are not limiting. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been shown and described in the examples and embodiments of the invention may be modified or practiced without departing from the principles described.
Claims (8)
1. Clamping tool of gas tightness product to be tested, its characterized in that includes:
A jig body;
the first clamping assembly and the second clamping assembly are arranged on the jig body at intervals, a clamping area is formed between the first clamping assembly and the second clamping assembly, at least one of the first clamping assembly and the second clamping assembly can block an opening of a product to be tested, and at least one of the first clamping assembly and the second clamping assembly is correspondingly provided with an air inlet for being communicated with an air tightness detection instrument; and
The detachable clamping assembly is detachably arranged on the jig body and comprises a movable piece which is used for being connected with the product to be tested to drive the product to be tested to move, and when the detachable clamping assembly is arranged on the jig body, the product to be tested is positioned in the clamping area;
the first clamping assembly can move towards the direction approaching or far away from the second clamping assembly, and when the first clamping assembly moves towards the direction approaching the second clamping assembly to a clamping position, the moving piece is driven by the first clamping assembly to move for a preset distance so as to drive the product to be tested to move to the second clamping assembly, so that the product to be tested is clamped and an opening is blocked;
the detachable clamping assembly comprises a clamping piece, a through hole for the product to be tested to pass through is formed in the moving piece, a clamping cavity which can clamp the product to be tested and is communicated with the through hole is formed in the clamping piece, and a second clamping assembly assembling hole communicated with the clamping cavity is formed in the clamping piece;
The detachable clamping assembly comprises an elastic piece, wherein the elastic piece is arranged between the moving piece and the clamping piece and is configured to be in a compressed state when the first clamping assembly is positioned at the clamping position and to be restored to the original state when the first clamping assembly is positioned at the clamping position;
The clamping jig for the product to be tested in the air tightness comprises a clamping driving assembly, the clamping driving assembly comprises a driving rod and a clamping rod, the driving rod is rotatably arranged on the jig body, the clamping rod is movably arranged on the jig body, one end of the clamping rod is connected with the first clamping assembly, and the other end of the clamping rod is connected with the driving rod to move along with the rotation of the driving rod so as to drive the first clamping assembly to move.
2. The clamping jig of claim 1, wherein the clamping cavity has a height greater than the height of the product to be tested, and the second clamping assembly fitting opening is formed in the clamping member sidewall and extends through an end of the clamping member.
3. The clamping jig of claim 1, wherein at least one of the first clamping assembly and the second clamping assembly is correspondingly formed with a sealing groove into which the product to be tested is inserted.
4. The clamping jig of claim 1, wherein at least one of the first clamping assembly and the second clamping assembly is correspondingly formed with a plurality of spaced apart air inlets.
5. The clamping jig of claim 1, comprising a clamping rail extending along a fixed trajectory, the first clamping assembly being slidably mounted to the clamping rail.
6. The clamping jig of claim 1, comprising a positioning assembly disposed on the jig body, the positioning assembly comprising at least two spaced apart positioning blocks, the second clamping assembly and the first clamping assembly being in a spaced apart region between the at least two positioning blocks.
7. A clamping method based on the product to be tested for air tightness according to any of claims 1 to 5, characterized by comprising the following steps:
installing a product to be tested on a moving piece of the detachable clamping assembly;
installing the separable clamping assembly on the jig body so that the product to be tested is positioned in a clamping area formed between the first clamping assembly and the second clamping assembly; and
The first clamping assembly is driven to move to a clamping position in a direction approaching to the second clamping assembly, so that the moving piece is driven to move a preset distance in a direction approaching to the second clamping assembly, the product to be tested is driven to move to the second clamping assembly, the product to be tested is clamped, and the opening of the product to be tested is blocked by the first clamping assembly and/or the second clamping assembly.
8. The air tightness detection device comprises the clamping jig and an air tightness detection instrument as claimed in any one of claims 1-5, wherein the air tightness detection instrument is communicated with the air inlet to detect the air tightness of the product to be detected.
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| CN202111060170.5A CN113607349B (en) | 2021-09-10 | 2021-09-10 | Air tightness detection equipment, clamping jig and clamping method thereof |
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| CN202111060170.5A CN113607349B (en) | 2021-09-10 | 2021-09-10 | Air tightness detection equipment, clamping jig and clamping method thereof |
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| CN113607349A CN113607349A (en) | 2021-11-05 |
| CN113607349B true CN113607349B (en) | 2024-06-14 |
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| CN108168789B (en) * | 2017-12-21 | 2019-07-23 | 重庆晓微城企业孵化器有限公司 | A kind of watertightness airtightness test table fixing seal device |
| CN112296903A (en) * | 2020-10-26 | 2021-02-02 | 无锡先导智能装备股份有限公司 | Part detection device, bearing jig and clamping and positioning mechanism |
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| CN216207340U (en) * | 2021-09-10 | 2022-04-05 | 上海紫燕合金应用科技有限公司 | Air tightness detection equipment and clamping jig thereof |
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