CN114220704A - Air pressure switch and automatic assembly process method - Google Patents
Air pressure switch and automatic assembly process method Download PDFInfo
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- CN114220704A CN114220704A CN202111438914.2A CN202111438914A CN114220704A CN 114220704 A CN114220704 A CN 114220704A CN 202111438914 A CN202111438914 A CN 202111438914A CN 114220704 A CN114220704 A CN 114220704A
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- 238000000034 method Methods 0.000 title claims description 31
- 230000008569 process Effects 0.000 title claims description 25
- 238000005245 sintering Methods 0.000 claims abstract description 8
- 230000008878 coupling Effects 0.000 claims abstract description 3
- 238000010168 coupling process Methods 0.000 claims abstract description 3
- 238000005859 coupling reaction Methods 0.000 claims abstract description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 101100495256 Caenorhabditis elegans mat-3 gene Proteins 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229920006257 Heat-shrinkable film Polymers 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007648 laser printing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
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- Physics & Mathematics (AREA)
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- Manufacturing & Machinery (AREA)
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- Push-Button Switches (AREA)
Abstract
The invention relates to an air pressure switch, wherein the upper part of a lower shell is opened, the bottom of the lower shell is provided with an air inlet, the bottom of an upper shell is opened, the lower shell is clamped with the upper shell, the upper shell and the lower shell are provided with a plurality of positioning devices, and a rubber pad, a first micro-moving part, a second micro-moving part and a third micro-moving part are sequentially arranged between the lower shell and the upper shell. The upper shell is provided with a guide rail matched with the third micro-motion part, and the edge of the rubber mat is pressed by the edge of the upper shell, so that a relatively sealed space is formed between the rubber mat and the lower shell. Go up the casing and be equipped with the through-hole, the both sides of through-hole rigid coupling respectively have first side shield and second side shield, are equipped with micro-gap switch between first side shield and the second side shield, and micro-gap switch's contact site is aimed at the third and is moved a little downwards, and it has the buckling piece to go up casing still joint, and it is fixed with micro-gap switch through the buckling piece, and buckling piece lower extreme opening, the bottom of casing are equipped with the gas pocket down, are equipped with sintering filter accessory in the gas pocket, and gas pocket and air inlet are all covered by the cushion.
Description
Technical Field
The invention relates to the field of electronic elements, in particular to an air pressure switch and an automatic assembly process method.
Background
The pneumatic control switch is also called a pneumatic switch and a pneumatic valve, and is a switch which controls opening and closing actions by utilizing the pressure generated by different gas pressures at two sides of the switch valve. The housings of the prior art air pressure switches are easy to open, and when they have defects or apply for warranty, because the housings are easy to open, it is impossible to determine whether they are damaged by human beings, and the prior art air pressure switches cannot be assembled in a mechanized and fully automatic manner due to the structure of the components.
Disclosure of Invention
Aiming at the technical problems in the prior art, one of the purposes of the invention is as follows: provided is a pneumatic switch, wherein a housing is not easily opened without damaging the housing when the housing is assembled, and all parts can be automatically assembled.
Aiming at the technical problems in the prior art, the second purpose of the invention is as follows: provided is an automatic assembly process method of an air pressure switch, which can realize the full-automatic assembly of the air pressure switch, and the shell of the assembled air pressure switch is not easy to be opened.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an air pressure switch, includes casing and last casing down, the upper portion opening of casing down, the bottom of casing is equipped with the air inlet down, goes up casing bottom opening, lower casing and last casing joint, go up the casing and be equipped with a plurality of positioner with lower casing, be equipped with the cushion down between casing and the last casing in proper order, first move a little, the second moves a little and the third moves a little. The upper shell is provided with a guide rail matched with the third micro-motion part, and the edge of the rubber mat is pressed by the edge of the upper shell, so that a relatively sealed space is formed between the rubber mat and the lower shell. The rubber mat is a flexible film. Go up the casing and be equipped with the through-hole, the both sides of through-hole rigid coupling respectively have first side shield and second side shield, are equipped with micro-gap switch between first side shield and the second side shield, and micro-gap switch's contact site is aimed at the third and is moved a little downwards, and it has the buckling piece to go up casing still joint, and it is fixed with micro-gap switch through the buckling piece, and buckling piece lower extreme opening, the bottom of casing are equipped with the gas pocket down, are equipped with sintering filter accessory in the gas pocket, and gas pocket and air inlet are all covered by the cushion.
Furthermore, the positioning device comprises a positioning convex rib which is arranged on the upper shell or the lower shell and has a triangular cross section, the positioning convex rib corresponds to the positioning convex rib, a positioning wire groove is formed in the lower shell or the upper shell matched with the positioning convex rib, and one side of the positioning convex rib is aligned to and inserted into the positioning wire groove and used for accurately positioning the upper shell and the lower shell.
Furthermore, the positioning device comprises a positioning concave part arranged on the lower shell or the upper shell, and a positioning bulge is arranged on the upper shell or the lower shell matched with the positioning concave part corresponding to the positioning concave part.
Furthermore, the top of the lower shell is provided with a plurality of positioning concave parts, the side wall of the upper shell is provided with a plurality of positioning bulges, and the positioning bulges are matched with the positioning concave parts to determine the clamping position of the upper shell and the lower shell.
Furthermore, go up casing or casing down and be equipped with a plurality of card protruding, correspond a plurality of card protruding, casing or last casing down with it complex is equipped with a plurality of card hole, and casing down are fixed in the protruding and card hole cooperation of card.
Furthermore, the position that the lateral wall of going up the casing is close to the bottom is equipped with a plurality of card protruding, corresponds the card protruding, and the lateral wall of casing is equipped with a plurality of card hole down.
Furthermore, the buckling piece comprises an integrally formed top, two side parts and a rear part, the two side parts of the buckling piece are respectively located on two sides of the first side baffle and the second side baffle, and the two side parts are respectively clamped with the corresponding side baffles.
Further, the rear portion of the fastener is located at one end of the microswitch, the first side baffle and the second side baffle, the upper shell is provided with a fastener positioning block and a fastener positioning hole, the fastener positioning block and the fastener positioning hole correspond to each other, the lower end of the rear portion is provided with a concave portion, the concave portion is matched with the fastener positioning block, one portion of the lower end of the rear portion is inserted into the fastener positioning hole, the top ends of the first side baffle and the second side baffle are equally divided into positioning clamping grooves, positioning convex blocks are arranged on the inner sides of the fasteners corresponding to the positioning clamping grooves, positioning stop blocks are equally divided into the side faces of the first side baffle and the second side baffle and are used for limiting the positions of the two side portions of the fastener.
An air pressure switch and an automatic assembly process method, which comprises the following steps,
step one, pressing a sintering filter part into an air hole of a prefabricated lower shell by adopting a stamping die;
placing a rubber pad at the upper opening of the lower shell, wherein the rubber pad covers the air hole and the air inlet;
thirdly, a first micro-moving part is placed from an opening at the upper part of the lower shell;
fourthly, the prefabricated upper shell is clamped with the lower shell from top to bottom under pressure, and the positions of the upper shell and the lower shell are determined according to the plurality of positioning devices during clamping;
placing a second micro moving piece and a third micro moving piece from the through hole of the upper shell;
sixthly, the contact part of the microswitch faces downwards, aligns to the third micro movable piece, and the microswitch is arranged between the first side baffle and the second side baffle;
step seven, buckling pieces are buckled from top to bottom, and the buckling pieces are clamped on the upper shell;
and step eight, automatically detecting the function of the air switch by the machine, performing six times of air pressure circulating pulse, and checking whether the air switch is turned on and off for three times.
In summary, the present invention has the following advantages:
a plurality of parts of the air pressure switch are connected in a clamping mode, the shell of the assembled air pressure switch is not easy to open, a user is prevented from automatically disassembling and assembling the air pressure switch, and the use safety is guaranteed. The automatic assembling device is provided with a plurality of positioning devices, all parts can be assembled from top to bottom, the assembling action is simple, and the full-mechanical operation is convenient.
The automatic assembly process method for the air pressure switch adopts an automatic machine in the whole assembly process, is simple and practical in process, high in automatic production efficiency of the machine, low in labor intensity of workers and good in product quality consistency, can reduce product cost, further improves market competitiveness and enterprise economic benefits.
Drawings
Fig. 1 is a schematic perspective view of a pneumatic switch according to the present invention.
Fig. 2 is a schematic perspective view of another angle of the air pressure switch according to the present invention.
Fig. 3 is a schematic structural view of another angle of the air pressure switch according to the present invention.
Fig. 4 is a schematic cross-sectional view at a-a in fig. 3.
Fig. 5 is a schematic cross-sectional view at B-B in fig. 3.
Fig. 6 is a schematic cross-sectional view at C-C in fig. 3.
Fig. 7 is a schematic view of an assembly process of a pneumatic switch automatic assembly process according to the present invention.
Fig. 8 is a schematic diagram of a second step assembly process of an automatic assembly process of the air pressure switch according to the present invention.
Fig. 9 is a schematic view of an assembly process of step three and step four of the automatic assembly process of the air pressure switch of the present invention.
Fig. 10 is a schematic cross-sectional view at a-a after the fourth step of the automatic assembly process of the air pressure switch according to the present invention.
Fig. 11 is a schematic view of an assembly process of step five of the automatic assembly process of the air pressure switch of the present invention.
Fig. 12 is a schematic cross-sectional view at a-a after the fifth step of the automatic assembly process of the air pressure switch according to the present invention.
Fig. 13 is a schematic view of an assembly process in step six of the automatic assembly process of the air pressure switch of the present invention.
Fig. 14 is a schematic cross-sectional view at a-a after the sixth step of the automatic assembly process of the air pressure switch according to the present invention.
Fig. 15 is a diagram illustrating an assembling process of step seven of the automatic assembling process of the air pressure switch according to the present invention.
Wherein fig. 1 to 15 include:
1-lower shell, 1-air inlet, 1-2-positioning concave part, 1-3-clamping hole, 1-4-positioning convex rib and 1-5-air hole;
2-sintering the filter element;
3-rubber cushion;
4-a micro-motion component, 4-1-a first micro-motion component, 4-2-a second micro-motion component, 4-3-a third micro-motion component;
5-upper shell, 5-1-through hole, 5-2-first side baffle, 5-3-second side baffle, 5-4-positioning projection, 5-clamping projection, 5-6-positioning wire groove, 5-7-fastener positioning block, 5-8-fastener positioning hole, 5-9-positioning clamping groove, 5-10-positioning stop block and 5-11-fastener clamping hole;
6-microswitch, 6-1-contact part;
7-fastener, 7-1-top, 7-2-side, 7-3-back, 7-4-recess, 7-5-positioning projection, 7-6-fastener clamping projection;
and 8, stamping die.
Detailed Description
The present invention will be described in further detail below.
Examples 1,
As shown in fig. 1 to 15, an air pressure switch comprises a lower casing 1 and an upper casing 5, wherein the upper part of the lower casing 1 is open, the bottom of the lower casing 1 is provided with an air inlet 1-1, the bottom of the upper casing 5 is open, the lower casing 1 is connected with the upper casing 5 in a clamping manner, the upper casing 5 and the lower casing 1 are provided with a plurality of positioning devices, a rubber mat 3, a first micro-moving part 4-1, a second micro-moving part 4-2 and a third micro-moving part 4-3 are sequentially arranged between the lower casing 1 and the upper casing 5, and the first micro-moving part 4-1, the second micro-moving part 4-2 and the third micro-moving part 4-3 form a micro-moving assembly 4. The upper shell 5 is provided with a guide rail matched with the third micro-moving part 4-3. The edge of the upper shell 5 presses the edge of the rubber pad 3, so that a relatively sealed space is formed between the rubber pad 3 and the lower shell 1. The rubber pad 3 is a flexible film. The upper shell 5 is provided with a through hole 5-1, the two sides of the through hole 5-1 are respectively and fixedly connected with a first side baffle 5-2 and a second side baffle 5-3, a micro switch 6 is arranged between the first side baffle 5-2 and the second side baffle 5-3, the contact part 6-1 of the micro switch 6 is downwards aligned with a third micro moving part 4-3, the upper shell 5 is further clamped with a buckling part 7, the micro switch 6 is fixed through the buckling part 7, the lower end of the buckling part 7 is opened, the bottom of the lower shell 1 is provided with an air hole 1-5, and a sintering filtering part 2 is arranged in the air hole 1-5. The sintered filter element 2 is a sintered brass element. The air holes 1-5 and the air inlets 1-1 are covered by the rubber cushion 3. The space enclosed by the lower shell 1 and the rubber pad 3 forms a pressure cavity. The sintered filter assembly 2 provides a communication channel between the pressure chamber enclosed by the lower housing 1 and the rubber mat 3 and the outside atmospheric pressure, so as to realize the functions of pressure and temperature regulation in the pressure chamber. When gas enters the upper shell 5 through the gas inlet 1-1, the rubber pad 3 deforms and bulges upwards to push the first micro-moving part 4-1, the first micro-moving part 4-1 pushes the second micro-moving part 4-2 to move upwards to drive the third micro-moving part 4-3 to move upwards, the third micro-moving part 4-3 is clamped at the top end of the guide rail of the upper shell 5 and is abutted against the contact part 6-1 of the micro-switch 6, the micro-switch 6 is switched on at the moment, when the gas enters the upper shell 5 through the gas inlet 1-1 again, the rubber pad 3 deforms and bulges upwards to push the first micro-moving part 4-1, the first micro-moving part 4-1 pushes the second micro-moving part 4-2 to move upwards to drive the third micro-moving part 4-3 to move upwards, and the third micro-moving part 4-3 is separated from the guide rail of the upper shell 5, at this time, the microswitch 6 is closed, and the principle is similar to a push type ball-point pen.
The positioning device comprises a positioning concave part 1-2 arranged on the lower shell 1 or the upper shell 5, a positioning bulge 5-4 is arranged on the upper shell 5 or the lower shell 1 matched with the positioning concave part 1-2 correspondingly. The top 7-1 of the lower shell 1 is provided with a plurality of positioning concave parts 1-2, the side wall of the upper shell 5 is provided with a plurality of positioning bulges 5-4, and the positioning bulges 5-4 are matched with the positioning concave parts 1-2 to determine the clamping position of the upper shell 5 and the lower shell 1. The upper shell 5 or the lower shell 1 is provided with a plurality of clamping protrusions 5-5, a plurality of clamping holes 1-3 are formed in the lower shell 1 or the upper shell 5 matched with the clamping protrusions corresponding to the plurality of clamping protrusions 5-5, and the upper shell 5 and the lower shell 1 are fixed by matching the clamping protrusions 5-5 with the clamping holes 1-3. The side wall of the upper shell 5 is provided with a plurality of clamping protrusions 5-5 near the bottom, the clamping protrusions 5-5 correspond to the clamping protrusions, and the side wall of the lower shell 1 is provided with a plurality of clamping holes 1-3.
A pneumatic switch and an automatic assembly process, as shown in FIGS. 7 to 15, includes a first step of pressing a sintered filter assembly 2 into a gas hole of a lower case 1, which is prefabricated, using a press mold 8. The use of the stamping die 8 makes it possible to tighten the sintered filter element 2 and to avoid leakage around it. By adjusting the compression ratio, the air leakage in the space enclosed by the lower housing 1 and the rubber mat 3 can be adjusted to a required value by sintering the filter fitting 2, so as to realize the function of adjusting the air pressure and the temperature. Placing a rubber pad 3 from an upper opening of the lower shell 1, wherein the rubber pad 3 covers the air hole and the air inlet 1-1; step three, placing a first micro moving part 4-1 from an upper opening of the lower shell 1; fourthly, the prefabricated upper shell 5 is clamped with the lower shell 1 from top to bottom under pressure, and the positions of the upper shell 5 and the lower shell 1 are determined according to a plurality of positioning devices during clamping; and step five, placing the second micro moving part 4-2 and the third micro moving part 4-3 from the through hole 5-1 of the upper shell 5. The upper and lower shells 5 and 1 are placed in the cavity in the order shown in fig. 11, and the fittings are placed in the order shown in fig. 12 without dislocation. And sixthly, the contact part 6-1 of the micro switch 6 faces downwards to be aligned with the third micro movable piece 4-3, and the micro switch 6 is installed between the first side baffle 5-2 and the second side baffle 5-3. The microswitch 6 is assembled as shown in fig. 13 and 14. It is clamped by a plastic boss on the upper shell 5. Note that the assembly cannot shake to affect the positions of the two fittings, the third micro-moving part 4-3 and the second micro-moving part 4-2. Step seven, buckling pieces 7 are buckled from top to bottom, and the buckling pieces 7 are clamped on the upper shell 5; and step eight, automatically detecting the machine. The test parameters are pressure 0.020Mpa, cycle time 1 second on, 1 second off. Then laser printing identification words on the surface of the product. And finally, automatically placing the air pressure switch printed with the mark into a cavity of the heat shrinkable film for packaging by a machine.
Examples 2,
The main structure of this embodiment is the same as that of embodiment 1, and the same parts are not described herein again, except that:
as shown in fig. 8 and 9, the positioning device includes positioning ribs 1-4 with triangular cross section and arranged on the upper casing 5 or the lower casing 1, corresponding to the positioning ribs 1-4, and a positioning wire groove 5-6 arranged on the lower casing 1 or the upper casing 5, wherein one side of the positioning rib 1-4 is aligned with and inserted into the positioning wire groove 5-6, and the positioning ribs 1-4 and the positioning wire groove 5-6 are assembling positioning points for accurately positioning the upper casing 5 and the lower casing 1.
Examples 3,
The main structure of this embodiment is the same as that of embodiment 1, and the same parts are not described herein again, except that:
the snap 7 is used to clamp the microswitch 6 and the upper housing 5 together in the orientation shown in fig. 15. The buckling piece 7 comprises a top part 7-1, two side parts 7-2 and a rear part 7-3 which are integrally formed, the two side parts 7-2 of the buckling piece 7 are respectively positioned at two sides of the first side baffle 5-2 and the second side baffle 5-3, and the two side parts 7-2 are respectively clamped with the corresponding side baffles. Specifically, the inner sides of the two side parts 7-2 are provided with fastener clamping protrusions 7-6, and the baffle plates on the two sides are respectively provided with fastener clamping holes 5-11 corresponding to the fastener clamping protrusions 7-6. The rear part 7-3 of the buckling piece 7 is positioned at one end of the microswitch 6, the first side baffle 5-2 and the second side baffle 5-3, the upper shell 5 is provided with a buckling piece positioning block 5-7 and a buckling piece positioning hole 5-8, the lower end of the rear part 7-3 is provided with a concave part 7-4, the concave part 7-4 is matched with the buckling piece positioning block 5-7, one part of the lower end of the rear part 7-3 is inserted into the buckling piece positioning hole 5-8, the top ends of the first side baffle 5-2 and the second side baffle 5-3 are respectively provided with a positioning clamping groove 5-9, the inner side of the buckling piece 7 corresponding to the positioning clamping groove 5-9 is provided with a positioning lug 7-5, the side surfaces of the first side baffle 5-2 and the second side baffle 5-3 are respectively provided with a positioning stop dog 5-10, positioning stops 5-10 serve to limit the position of the two side portions 7-2 of fastener 7. The buckle design formed by combining the concave part 7-4 on the buckling piece 7, the lower end of the rear part 7-3, the positioning convex block 7-5, the buckling piece clamping convex 7-6 and the buckling piece positioning block 5-7, the buckling piece positioning hole 5-8 and the buckling piece clamping hole 5-11 on the upper shell 5 cannot be disassembled unless the buckling piece positioning block, the buckling piece positioning hole and the buckling piece clamping hole are damaged once assembled. So that the user cannot disassemble the assembly.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (9)
1. A gas pressure switch, characterized by: including casing and last casing down, the upper portion opening of casing down, the bottom of casing is equipped with the air inlet down, go up casing bottom opening, casing and last casing joint down, it is equipped with a plurality of positioner to go up casing and casing down, be equipped with the cushion down between casing and the last casing in proper order, first little movable piece, second little movable piece and third little movable piece, it is equipped with the guide rail with third micro-gap spare complex to go up the casing, it is equipped with the through-hole to go up the casing, the both sides of through-hole rigid coupling respectively have first side shield and second side shield, be equipped with micro-gap switch between first side shield and the second side shield, micro-gap switch's contact site is aimed at the third little movable piece downwards, it has the buckling piece to go up casing still joint, it is fixed with micro-gap through the buckling piece, buckling piece lower extreme opening, the bottom of casing is equipped with the gas pocket down, be equipped with sintering filter accessory in the gas pocket, gas pocket and air inlet are all covered by the cushion.
2. A gas pressure switch according to claim 1, wherein: the positioning device comprises a positioning convex edge which is arranged on the upper shell or the lower shell and has a triangular cross section, the corresponding positioning convex edge is arranged on the lower shell or the upper shell matched with the positioning convex edge, and one edge of the positioning convex edge is aligned to and inserted into the positioning line slot and is used for accurately positioning the upper shell and the lower shell.
3. A gas pressure switch according to claim 2, wherein: the positioning device comprises a positioning concave part arranged on the lower shell or the upper shell, and a positioning bulge is arranged on the upper shell or the lower shell matched with the positioning concave part corresponding to the positioning concave part.
4. A gas pressure switch according to claim 3, wherein: the top of casing is equipped with a plurality of location concave parts down, and the lateral wall of going up the casing is equipped with a plurality of location archs, and the joint position of casing and lower casing is confirmed in location protruding and the cooperation of location concave part.
5. A gas pressure switch according to claim 4, wherein: go up casing or casing down and be equipped with a plurality of card protruding, correspond a plurality of card protruding, casing or last casing down with it complex is equipped with a plurality of card hole, and the protruding and card hole cooperation of card is fixed casing and casing down.
6. A gas pressure switch according to claim 5, wherein: the position that the lateral wall of going up the casing is close to the bottom is equipped with a plurality of card protrudingly, corresponds the card protrudingly, and the lateral wall of casing is equipped with a plurality of card hole down.
7. A gas pressure switch according to claim 1, wherein: the buckling piece comprises an integrally formed top, two side portions and a rear portion, the two side portions of the buckling piece are located on two sides of the first side baffle and the second side baffle respectively, and the two side portions are clamped with the corresponding side baffles respectively.
8. A gas pressure switch according to claim 7, wherein: the rear portion of the buckling piece is located at one end of the micro switch, the first side baffle and the second side baffle, the upper shell is provided with a buckling piece positioning block and a buckling piece positioning hole, the corresponding buckling piece positioning block and the buckling piece positioning hole correspond to the buckling piece positioning block and the buckling piece positioning hole, the lower end of the rear portion is provided with a concave portion, the concave portion is matched with the buckling piece positioning block, one portion of the lower end of the rear portion is inserted into the buckling piece positioning hole, the top ends of the first side baffle and the second side baffle are respectively provided with a positioning clamping groove, the inner side of the buckling piece corresponding to the positioning clamping groove is provided with a positioning lug, the side faces of the first side baffle and the second side baffle are respectively provided with a positioning stop block, and the positioning stop blocks are used for limiting the positions of two side portions of the buckling piece.
9. A gas pressure switch and automated assembly process according to any of claims 1 to 8, wherein: comprises the following steps of (a) carrying out,
step one, pressing a sintering filter part into an air hole of a prefabricated lower shell by adopting a stamping die;
placing a rubber pad at the upper opening of the lower shell, wherein the rubber pad covers the air hole and the air inlet;
thirdly, a first micro-moving part is placed from an opening at the upper part of the lower shell;
fourthly, the prefabricated upper shell is clamped with the lower shell from top to bottom under pressure, and the positions of the upper shell and the lower shell are determined according to the plurality of positioning devices during clamping;
placing a second micro moving piece and a third micro moving piece from the through hole of the upper shell;
sixthly, the contact part of the microswitch faces downwards, aligns to the third micro movable piece, and the microswitch is arranged between the first side baffle and the second side baffle;
step seven, buckling pieces are buckled from top to bottom, and the buckling pieces are clamped on the upper shell;
and step eight, automatically detecting the function of the air switch by the machine, performing six times of air pressure circulating pulse, and checking whether the air switch is turned on and off for three times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111438914.2A CN114220704B (en) | 2021-11-29 | 2021-11-29 | Pneumatic switch and automatic assembly process method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111438914.2A CN114220704B (en) | 2021-11-29 | 2021-11-29 | Pneumatic switch and automatic assembly process method |
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| Publication Number | Publication Date |
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| CN114220704A true CN114220704A (en) | 2022-03-22 |
| CN114220704B CN114220704B (en) | 2024-01-30 |
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| CN110400722A (en) * | 2019-07-02 | 2019-11-01 | 浙江华地电子有限公司 | A kind of blast switch |
| CN211858513U (en) * | 2020-03-18 | 2020-11-03 | 中山雄益精密机电有限公司 | Wind pressure switch |
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| CN208596642U (en) * | 2018-09-11 | 2019-03-12 | 温州大阳科技有限公司 | Pressure switch |
| CN209015934U (en) * | 2018-10-25 | 2019-06-21 | 嘉兴三依电子有限公司 | A kind of switch case |
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| CN211858513U (en) * | 2020-03-18 | 2020-11-03 | 中山雄益精密机电有限公司 | Wind pressure switch |
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| CN114220704B (en) | 2024-01-30 |
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