阅读说明：本技术 一种电子开关气密性测试夹具 (Electronic switch gas tightness test fixture ) 是由 余朝阳 张吉伦 于 2021-03-05 设计创作，主要内容包括：本发明涉及一种电子开关气密性测试夹具,包含底座、分别设置在底座上的定位机构和充气密封机构；所述定位机构包括定位座、设置在定位座顶部用于放置电子开关的料槽、分别设置在定位座两侧且驱动端可伸入料槽内用于固定电子开关的定位气缸、设置在定位座一端且与料槽相通的开口；所述充气密封机构包括支架、一端设置在支架上且另一端与开口连接的壳体、设置在壳体内用于对电子开关接口进行内胀紧密封并充气的充气密封组件、设置在支架上用于驱动充气密封组件移动的平移气缸；本发明通过定位机构能有效对电子开关进行固定,且充气密封机构采用内胀紧进行密封,能有效对异形接口进行密封,从而提高测试精度。(The invention relates to an electronic switch air tightness test fixture which comprises a base, a positioning mechanism and an inflating and sealing mechanism, wherein the positioning mechanism and the inflating and sealing mechanism are respectively arranged on the base; the positioning mechanism comprises a positioning seat, a material groove arranged at the top of the positioning seat and used for placing the electronic switch, positioning cylinders respectively arranged at two sides of the positioning seat and provided with driving ends capable of extending into the material groove and used for fixing the electronic switch, and an opening arranged at one end of the positioning seat and communicated with the material groove; the inflatable sealing mechanism comprises a support, a shell, an inflatable sealing assembly and a translation cylinder, wherein one end of the shell is arranged on the support, the other end of the shell is connected with the opening, the inflatable sealing assembly is arranged in the shell and used for performing internal expansion sealing and inflation on an electronic switch interface, and the translation cylinder is arranged on the support and used for driving the inflatable sealing assembly to move; the electronic switch can be effectively fixed through the positioning mechanism, and the inflation sealing mechanism adopts internal expansion to seal, so that the special-shaped interface can be effectively sealed, and the testing precision is improved.)

1. The utility model provides an electronic switch gas tightness test fixture which characterized in that: comprises a base, a positioning mechanism and an inflatable sealing mechanism which are respectively arranged on the base;

the positioning mechanism comprises a positioning seat arranged on the base, a material groove arranged at the top of the positioning seat and used for placing the electronic switch, positioning cylinders respectively arranged at two sides of the positioning seat and provided with driving ends capable of extending into the material groove and used for fixing the electronic switch, and an opening arranged at one end of the positioning seat close to the inflatable sealing mechanism and communicated with the material groove;

the inflatable sealing mechanism comprises a support arranged on the base, a shell, an inflatable sealing assembly and a translation cylinder, wherein one end of the shell is arranged on the support, the other end of the shell is connected with the opening, the inflatable sealing assembly is arranged in the shell and used for performing internal expansion sealing and inflation on an electronic switch interface, and the translation cylinder is arranged on the support and used for driving the inflatable sealing assembly to move along the direction of the electronic switch;

the inflatable sealing assembly comprises a U-shaped frame, a sliding block, a spring, a guide pillar, an extrusion block, an extrusion part, a limiting part, a sealing ring, a first limiting unit and a second limiting unit, wherein the U-shaped frame is horizontally arranged, the tail part of the U-shaped frame is connected with the driving end of the translation cylinder, the sliding block is horizontally arranged in the U-shaped frame, the spring is arranged between the inner end of the sliding block and the tail part of the U-shaped frame, the guide pillar is horizontally arranged at the outer end of the sliding block, the extrusion block is arranged at the head part of the U-shaped frame and is sleeved on the guide pillar, the extrusion part is arranged on the extrusion block and is sleeved on the guide pillar, the limiting part is arranged at the head; the guide post is of a hollow structure, and the head of the guide post is provided with an inflation inlet; an air pipe interface is arranged on the sliding block; the air pipe interface is communicated with the guide pillar and is connected with the leakage tester through a hose.

2. The electronic switch airtightness test fixture according to claim 1, wherein: the first limiting unit comprises at least one first limiting groove which is arranged on the shell and placed along the moving direction of the sliding block, and at least one first cam bearing follower which is arranged at the top or the bottom of the sliding block and is positioned in the first limiting groove; the second limiting unit comprises at least one second limiting groove arranged on the U-shaped frame and placed along the moving direction of the sliding block and at least one second cam bearing follower arranged on the side surface of the sliding block and positioned in the second limiting groove.

3. The electronic switch airtightness test fixture according to claim 2, wherein: and cover plates for covering the first limiting groove and the second limiting groove are correspondingly arranged on the shell and the U-shaped frame.

4. The electronic switch airtightness test fixture according to claim 1, wherein: a cavity is arranged at one end of the positioning seat, which is far away from the inflatable sealing mechanism; and a code scanner for scanning the two-dimensional code on the electronic switch is arranged in the cavity.

5. The electronic switch airtightness test fixture according to claim 1, wherein: and a sensor for detecting whether the electronic switch is placed in the material groove is arranged on the positioning seat.

6. The electronic switch airtightness test fixture according to any one of claims 1 to 5, wherein: and the base is respectively provided with a universal quick-change connector and a universal quick-change connector.

7. The electronic switch airtightness test fixture according to claim 6, wherein: handles are respectively arranged on two sides of the top of the base.

8. The electronic switch airtightness test fixture according to claim 7, wherein: and four corners of the base are respectively provided with connecting holes.

Technical Field

The invention relates to the field of air tightness test, in particular to an air tightness test clamp for an electronic switch.

Background

At present, many electronic switches require internal waterproofing, so that after the electronic switches are produced, a leakage test needs to be carried out, specifically, a leakage tester is used for inflating the inside of the electronic switches through an interface, the air pressure is 20KPa, and the pressure is maintained for 1S, if the electronic switches do not leak air, the products are qualified, otherwise, if the electronic switches leak air, the products are unqualified; however, some electronic switch interfaces have an opposite structure, so that when the leakage tester is connected with the electronic switch interfaces, the sealing performance is poor, and the testing precision is seriously influenced.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide an electronic switch air tightness test clamp.

In order to achieve the purpose, the invention adopts the technical scheme that: an electronic switch air tightness test fixture comprises a base, a positioning mechanism and an inflation sealing mechanism, wherein the positioning mechanism and the inflation sealing mechanism are respectively arranged on the base;

the positioning mechanism comprises a positioning seat arranged on the base, a material groove arranged at the top of the positioning seat and used for placing the electronic switch, positioning cylinders respectively arranged at two sides of the positioning seat and provided with driving ends capable of extending into the material groove and used for fixing the electronic switch, and an opening arranged at one end of the positioning seat close to the inflatable sealing mechanism and communicated with the material groove;

the inflatable sealing mechanism comprises a support arranged on the base, a shell, an inflatable sealing assembly and a translation cylinder, wherein one end of the shell is arranged on the support, the other end of the shell is connected with the opening, the inflatable sealing assembly is arranged in the shell and used for performing internal expansion sealing and inflation on an electronic switch interface, and the translation cylinder is arranged on the support and used for driving the inflatable sealing assembly to move along the direction of the electronic switch;

the inflatable sealing assembly comprises a U-shaped frame, a sliding block, a spring, a guide pillar, an extrusion block, an extrusion part, a limiting part, a sealing ring, a first limiting unit and a second limiting unit, wherein the U-shaped frame is horizontally arranged, the tail part of the U-shaped frame is connected with the driving end of the translation cylinder, the sliding block is horizontally arranged in the U-shaped frame, the spring is arranged between the inner end of the sliding block and the tail part of the U-shaped frame, the guide pillar is horizontally arranged at the outer end of the sliding block, the extrusion block is arranged at the head part of the U-shaped frame and is sleeved on the guide pillar, the extrusion part is arranged on the extrusion block and is sleeved on the guide pillar, the limiting part is arranged at the head; the guide post is of a hollow structure, and the head of the guide post is provided with an inflation inlet; an air pipe interface is arranged on the sliding block; the air pipe interface is communicated with the guide pillar and is connected with the leakage tester through a hose.

Preferably, the first limiting unit comprises at least one first limiting groove arranged on the shell and placed along the moving direction of the sliding block, and at least one first cam bearing follower arranged at the top or the bottom of the sliding block and positioned in the first limiting groove; the second limiting unit comprises at least one second limiting groove arranged on the U-shaped frame and placed along the moving direction of the sliding block and at least one second cam bearing follower arranged on the side surface of the sliding block and positioned in the second limiting groove.

Preferably, the shell and the U-shaped frame are correspondingly provided with cover plates for covering the first limiting groove and the second limiting groove.

Preferably, a cavity is arranged at one end, far away from the inflatable sealing mechanism, of the positioning seat; and a code scanner for scanning the two-dimensional code on the electronic switch is arranged in the cavity.

Preferably, a sensor for detecting whether the electronic switch is placed in the material groove is arranged on the positioning seat.

Preferably, a universal quick-change connector and a universal quick-change connector are respectively arranged on the base.

Preferably, handles are respectively arranged on two sides of the top of the base.

Preferably, four corners of the base are respectively provided with a connecting hole.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

the electronic switch can be fixed through the positioning mechanism, the inflation sealing mechanism can seal and inflate the electronic switch conveniently, the testing efficiency is improved, the inflation sealing mechanism adopts internal expansion to seal, and the special-shaped interface can be effectively sealed, so that the testing precision is improved.

Drawings

The technical scheme of the invention is further explained by combining the accompanying drawings as follows:

FIG. 1 is a left side schematic structural view of an electronic switch air tightness test fixture according to the present invention;

FIG. 2 is a right side schematic structural view of the electronic switch air tightness test fixture of the present invention;

FIG. 3 is a transverse cross-sectional view of the air tightness test fixture of the electronic switch of the present invention

FIG. 4 is a schematic structural diagram of a positioning mechanism according to the present invention;

FIG. 5 is a cross-sectional view of the positioning mechanism of the present invention in operation;

FIG. 6 is a schematic view of a portion of the inflatable sealing mechanism of the present invention;

FIG. 7 is a schematic structural view of the inflatable sealing mechanism of the present invention with the housing removed;

FIG. 8 is a schematic structural view of a slider according to the present invention;

FIG. 9 is a schematic view of a part of the electronic switch air tightness test fixture according to the present invention;

fig. 10 is a schematic structural diagram of a conventional electronic switch.

Wherein: 1. a base; 11. a handle; 12. connecting holes; 13. a VPC universal quick-change connector; 14. a universal quick change joint; 2. a positioning mechanism; 21. a code scanner; 22. positioning seats; 23. an opening; 24. a chamber; 25. a trough; 26. positioning the air cylinder; 27. an infrared sensor; 3. an inflation sealing mechanism; 31. a cover plate; 32. a support; 33. a housing; 34. an inflatable seal assembly; 341. a U-shaped frame; 342. a second limit unit; 3421. a second limit groove; 3422. a second cam bearing follower; 343. a first limit unit; 3431. a first limit groove; 3432. a first cam bearing follower; 344. extruding the block; 3441. a pressing section; 345. a slider; 346. a spring; 347. a guide post; 348. a seal ring; 349. a limiting part; 35. a translation cylinder; 36. a tracheal tube interface; 37. a hose; 4. an electronic switch; 41. an interface.

Detailed Description

The invention is described in further detail below with reference to the figures and the embodiments.

Fig. 1-10 show an air tightness testing fixture for an electronic switch according to the present invention, which comprises a base 1, a positioning mechanism 2 and an air-filled sealing mechanism 3, wherein the positioning mechanism 2 and the air-filled sealing mechanism 3 are respectively disposed on the base 1; the positioning mechanism 2 comprises a positioning seat 22 arranged on the base 1, a material groove 25 arranged at the top of the positioning seat 22 and used for placing the electronic switch 4, positioning cylinders 26 respectively arranged at two sides of the positioning seat 22 and having driving ends capable of being inserted into the material groove 25 and used for fixing the electronic switch 4, and an opening 23 arranged at one end of the positioning seat 22 close to the inflatable sealing mechanism 3 and communicated with the material groove 25; the inflatable sealing mechanism 3 comprises a bracket 32 arranged on the base 1, a shell 33 with one end arranged on the bracket 32 and the other end connected with the opening 23, an inflatable sealing assembly 34 arranged in the shell 33 and used for performing internal expansion, sealing and inflation on the opening 41, and a translation cylinder 35 arranged on the bracket 32 and used for driving the inflatable sealing assembly 34 to move along the direction of the electronic switch 4; the inflation sealing assembly 34 comprises a U-shaped frame 341 which is horizontally arranged and the tail part of which is connected with the driving end of the translation cylinder 35, a sliding block 345 which is horizontally arranged in the U-shaped frame 341, a spring 346 which is arranged between the inner end of the sliding block 345 and the tail part of the U-shaped frame 341, a guide post 347 which is horizontally arranged at the outer end of the sliding block 345, a pressing block 344 which is arranged at the head part of the U-shaped frame 341 and is sleeved on the guide post 347, a pressing part 3441 which is arranged on the pressing block 344 and is sleeved on the guide post 347, a limiting part 349 which is arranged at the head part of the guide post 347 and has a diameter larger than that of the guide post 347, a sealing ring 348 which is sleeved on the guide post 347 and is positioned between the pressing part 3441 and the limiting part 349, a first limiting unit 343 which; the guide post 347 is of a hollow structure, and an inflation inlet is formed in the head of the guide post 347; the sliding block 345 is provided with an air pipe interface 36; the air pipe interface 36 is communicated with the guide post 347 and is connected with the f620 leakage tester through a hose 37; when in work: the electronic switch 4 is placed in the material groove 25 by a worker, and then the worker stretches into the material groove 25 through the two positioning cylinders 26 to fix the electronic switch 4, so that the electronic switch 4 is conveniently sealed and inflated by the inflation sealing mechanism 3, and the testing efficiency is improved; then the translational cylinder 35 drives the inflatable sealing assembly 34 to move towards the electronic switch 4, after the sealing ring 348 enters the interface 41, the first limiting unit 343 limits the slider 345, and prevents the limiting part 349, the guide post 347 and the slider 345 from continuing to move towards the electronic switch 4, because the spring 346 is arranged between the inner end of the slider 345 and the tail of the U-shaped frame 341, and the extrusion block 344 is sleeved on the guide post 347, when the translational cylinder 35 continues to drive the U-shaped frame 341 to move towards the electronic switch 4, the U-shaped frame 341 drives the extrusion block 344, the sealing ring 348 is extruded through the extrusion part 3441, so that the sealing ring 348 deforms and expands outwards and contacts with the inner wall of the interface 41 to realize sealing, and at the moment, the second limiting unit 342 limits the U-shaped frame 341, and prevents the extrusion part 3441 from continuing to extrude, so that the sealing ring 348 is damaged; finally, the f620 leakage tester sequentially inflates the electronic switch 4 through the hose 37 and the guide post 347 to test; wherein the trough 25 has the same shape as the electronic switch 4, and the electronic switch 4 can be installed in the trough 25 only when the interface 41 of the electronic switch 4 faces the inflatable sealing mechanism 3, and conversely, the electronic switch 4 cannot be installed in the trough 25.

Further, the first limiting unit 343 includes two first limiting grooves 3431 disposed on the housing 33 and disposed along the moving direction of the sliding block 345, four first cam bearing followers 3432 disposed on the top or bottom of the sliding block 345 and disposed in the first limiting grooves 3431; the second position-limiting unit 342 comprises a second position-limiting groove 3421 disposed on the U-shaped frame 341 and disposed along the moving direction of the sliding block 345, and two second cam bearing followers 3422 disposed on the side of the sliding block 345 and disposed in the second position-limiting groove 3421; when in work: because the first limiting groove 3431 and the second limiting groove 3421 are long, the first cam bearing follower 3432 and the second cam bearing follower 3422 can only slide in the first limiting groove 3431 and the second limiting groove 3421 correspondingly, so as to limit the position; the movable range of the sliding block 345 and the U-shaped frame 341 is determined by the length of the first and second limiting grooves 3431 and 3421, and the movable range of the sliding block 345 and the U-shaped frame 341 can be changed by adjusting the length of the first and second limiting grooves 3431 and 3421.

Further, the housing 33 and the U-shaped frame 341 are correspondingly provided with a cover plate 31 for covering the first limiting groove 3431 and the second limiting groove 3421, so as to perform a sealing function, prevent dust, impurities and the like from falling into the inflatable sealing assembly 34, reduce abrasion and prolong the service life.

Further, a cavity 24 is arranged at one end of the positioning seat 22 far away from the inflatable sealing mechanism 3; a code scanner 21 for scanning the two-dimensional code on the electronic switch 4 is arranged in the cavity 24; when in work: the two-dimensional code on the electronic switch 4 is scanned by the code scanner 21, so that the information of each electronic switch 4 can be automatically recorded, and the management is convenient.

Further, the positioning seat 22 is provided with an infrared sensor 27 for detecting whether the electronic switch 4 is placed in the material groove 25, so that misoperation can be effectively prevented.

Further, a VPC universal quick-change connector 13 and a universal quick-change adapter 14 are respectively arranged on the base 1, so that quick connection or replacement is facilitated, and assembly and maintenance efficiency is improved.

Further, the handles 11 are arranged on two sides of the top of the base 1 respectively, so that the test fixture is convenient to carry.

Further, four angles of base 1 are provided with connecting hole 12 respectively, are convenient for fix this test fixture on the workstation.

The above is only a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.