CN208239034U - A kind of air tightness detection apparatus of cavity workpiece - Google Patents
A kind of air tightness detection apparatus of cavity workpiece Download PDFInfo
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- CN208239034U CN208239034U CN201820808886.6U CN201820808886U CN208239034U CN 208239034 U CN208239034 U CN 208239034U CN 201820808886 U CN201820808886 U CN 201820808886U CN 208239034 U CN208239034 U CN 208239034U
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- workpiece
- detection apparatus
- air tightness
- tightness detection
- seaming chuck
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Abstract
The utility model discloses a kind of air tightness detection apparatus of cavity workpiece, and structure is simple, and testing result is reliable.A kind of air tightness detection apparatus of cavity workpiece, including upper plate and lower plate setting up and down, the column being fixedly connected between the upper plate and the lower plate, the middle plate that can be set to being slidable in the vertical direction on the column, the master cylinder being set on the upper plate and the multiple side cylinders being set in the lower plate, the lower plate is equipped with and is matched with workpiece to accommodate the positioning seat of workpiece, the lower end of the piston rod of the master cylinder is connected with the middle plate, the middle plate is equipped with for by the closed multiple seaming chucks in each hole on workpiece surface, the end of the piston rod of each side cylinder is respectively provided with the closed side pressure head in each hole on workpiece side surface, the air tightness detection apparatus further includes the inlet channel being connected to for the cavity with workpiece.
Description
Technical field
The utility model relates to a kind of air tightness detection apparatus of cavity workpiece.
Background technique
Some cavity workpiece, such as cylinder head, the cylinder body of automobile engine cylinder etc., it is necessary to ensure that have strict air-tightness.
Currently, the test equipment for detecting this kind of cavity air tightness of workpiece mostly uses greatly the mode of water-stop to be detected.There are knots
The defects of structure is complicated, bulky, cost of manufacture is high, vulnerable part is more, sealing is difficult and inconvenient maintenance.
Utility model content
The purpose of this utility model be solve the problems, such as above-mentioned the deficiencies in the prior art and, propose a kind of cavity work
The air tightness detection apparatus of part, and structure is simple, testing result is reliable.
The technical solution adopted in the utility model is as follows:
A kind of air tightness detection apparatus of cavity workpiece, including upper plate and lower plate setting up and down, is fixedly connected on described
Column between plate and the lower plate, is set on described the middle plate that can be set to being slidable in the vertical direction on the column
Master cylinder on plate and the multiple side cylinders being set in the lower plate, the lower plate, which is equipped with, to be matched with workpiece to accommodate
The positioning seat of workpiece, the lower end of the piston rod of the master cylinder are connected with the middle plate, and the middle plate is equipped with for by work
The closed multiple seaming chucks in each hole on part upper surface, the end of the piston rod of each side cylinder are respectively provided with work
The closed side pressure head in each hole on part side surface, the air tightness detection apparatus further include be connected to for the cavity with workpiece into
Gas channel.
In one embodiment, the entrance of the inlet channel is equipped with the inlet suction port for connecting tracheae.
In one embodiment, the tracheae is equipped with air gauge.
In one embodiment, the closed pushing in hole on the lower surface by workpiece is fixedly installed in the lower plate
Head, the inlet channel are opened in the push-down head.
In one embodiment, the multiple seaming chuck include the first seaming chuck, the second seaming chuck, third seaming chuck with, the
Four seaming chucks and the 5th seaming chuck, first seaming chuck, the second seaming chuck, third seaming chuck, the 4th seaming chuck and
Five seaming chucks are fixedly connected in the lower surface of the middle plate.
In one embodiment, the multiple side cylinder is circumferentially positioned at the surrounding of the positioning seat.
In one embodiment, the multiple side cylinder includes the first side cylinder being set on the left of the positioning seat, is set to institute
It states second side cylinder on front side of positioning seat, the third side cylinder on the right side of the positioning seat and is set on rear side of the positioning seat
The 4th side cylinder and the 5th side cylinder, the right end of the piston rod of first side cylinder is equipped with the first side pressure head, described the
The rear end of the piston rod of two side cylinders is equipped with second side pressure head, and the left end of the piston rod of third side cylinder is equipped with third
The front end of side pressure head, the piston rod of the 4th side cylinder is equipped with the 4th side connector, the piston rod of the 5th side cylinder
Front end is equipped with the 5th side connector.
In one embodiment, the seaming chuck and the side pressure head are respectively provided with to be affixed to merge with the surface of workpiece covers completely
The sealing plane in the corresponding hole on lid workpiece.
In one embodiment, the lower plate is equipped with the positioning pin upwardly extended.
The utility model uses above scheme, has the advantages that compared with prior art
Airtight detection carried out to cavity workpiece by the air tightness detection apparatus, apparatus structure is simple and small volume, is easy to
Maintenance, has the advantages that easy to use, detection efficiency is higher and testing result is reliable.
Detailed description of the invention
It, below will be to needed in embodiment description in order to illustrate more clearly of the technical solution of the utility model
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 a, 1b are respectively the stereoscopic schematic diagram at two kinds of visual angles of the utility model cavity workpiece to be detected；
Fig. 2 is the main view according to the air tightness detection apparatus of the utility model；
Fig. 3 is the side view of air tightness detection apparatus shown in Fig. 2；
Fig. 4 is the top view of air tightness detection apparatus shown in Fig. 2, wherein concealing master cylinder, upper plate and middle plate.
In above-mentioned attached drawing,
1, workpiece；10, hole；11, location hole；2, upper plate；3, middle plate；31, the first seaming chuck；32, the second seaming chuck；33,
Third seaming chuck with；34, the 4th seaming chuck；35, the 5th seaming chuck；4, lower plate；41, positioning pin；5, column；6, master cylinder；60,
Piston rod；71, the first side cylinder；710, the first side pressure head；72, second side cylinder；720, second side pressure head；73, third side gas
Cylinder；730, third side pressure head；74, the 4th side cylinder；740, the 4th side pressure head；75, the 5th side cylinder；750, the 5th side pressure head；
8, positioning seat；9, push-down head；91, inlet suction port.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be understood by the person skilled in the art with feature.The utility model is according to those skilled in the art to the definition in orientation
It usual observation visual angle and is defined to describe convenient, does not limit specific direction.
The present embodiment provides a kind of air tightness detection apparatus of cavity workpiece, the structure of cavity workpiece 1 such as Fig. 1 a and Fig. 1 b institutes
Show.The cavity workpiece 1 can be the components such as engine cylinder body etc. of automobile, and inside has the cavity for oil in reserve, gas, and
The hole 10 of multiple fuel feeding, gas disengaging is offered on the surface of the cavity workpiece 1.
Referring to shown in Fig. 2-4, the air tightness detection apparatus of the cavity workpiece, including upper plate 2 and lower plate 4 setting up and down, admittedly
Surely multiple columns 5 between the upper plate 2 and the lower plate 4 are connected to, the column 5 can be set to being slidable in the vertical direction
On middle plate 3, the master cylinder 6 being set on the upper plate 2 and the multiple side cylinders being set in the lower plate 4.Under described
It is fixedly installed and matches with workpiece 1 to accommodate the positioning seat 8 of the cavity workpiece 1 on plate 4, which is equipped with and cavity
The recess and lug boss that the lower surface of workpiece 1 matches, so that the cavity workpiece 1 is stuck in just in positioning seat 8.5 edge of column
Vertical direction extends, and four columns 5 are arranged around positioning seat 8, arranges quadrangularly.Middle plate 3 between upper plate 2 and lower plate 4,
The lower end of the piston rod 60 of the master cylinder 6 is fixedly connected with the upper surface of the middle plate 3, on the lower surface of the middle plate 3
It is fixed with for by the closed multiple seaming chucks in each hole 10 on 1 upper surface of workpiece.The piston rod of each side cylinder
End is respectively provided with the closed side pressure head in each hole 10 on 1 side surface of workpiece.
The air tightness detection apparatus further includes the inlet channel for being connected to the cavity of workpiece 1.Specifically, the lower plate
It is fixedly installed on 4 for by the closed push-down head 9 in hole 10 on the lower surface of workpiece 1, the inlet channel to be opened in described
In push-down head 9, the entrance of the inlet channel is equipped with the inlet suction port 91 for connecting tracheae.The air tightness detection apparatus is into one
Step includes the air gauge for monitoring the pressure change in cavity, which may be disposed on the tracheae.
Specifically, as shown in figure 4, the multiple seaming chuck in the first seaming chuck 31, the second seaming chuck 32, third including pressing
First 33, the 4th seaming chuck 34 and the 5th seaming chuck 35, first seaming chuck 31, the second seaming chuck 32, third seaming chuck 33
Be fixedly connected with, the 4th seaming chuck 34 and the 5th seaming chuck 35 in the lower surface of the middle plate 3, and with 1 upper surface of workpiece
On the position in five holes 10, size, shape it is corresponding.After plate 3 moves down in place in the middle, each seaming chuck divides on closed work piece 1
One of hole 10 on surface.
The multiple side cylinder is circumferentially positioned at the surrounding of the positioning seat 8.Specifically as shown in figure 4, the multiple side gas
Cylinder includes the first side cylinder 71 set on 8 left side of positioning seat, second side cylinder 72 set on 8 front side of positioning seat, sets
Third side cylinder 73 in 8 right side of positioning seat and the 4th side cylinder 74 and the 5th side on rear side of the positioning seat 8
The right end of cylinder 75, the piston rod of first side cylinder 71 is equipped with the first side pressure head 710, the work of second side cylinder 72
The rear end of stopper rod is equipped with second side pressure head 720, and the left end of the piston rod of third side cylinder 73 is equipped with third side pressure head
730, the front end of the piston rod of the 4th side cylinder 74 is equipped with the 4th side connector 740, the piston of the 5th side cylinder 75
The front end of bar is equipped with the 5th side connector 750.
It should also be noted that, the seaming chuck and the side pressure head, the push-down head 9 are respectively provided with the table with workpiece 1
Face is affixed the sealing plane for merging the corresponding hole 10 being completely covered on workpiece 1.
In addition, the lower plate 4 is equipped with the positioning pin 41 upwardly extended.As shown in Figure 1a, there are two the lower part tools of workpiece 1
The location hole 11 being diagonally arranged, the positioning pin 41 cooperates with the location hole 11, when workpiece 1 is placed in positioning seat 8
Afterwards, the positioning pin 41 in lower plate 4 is plugged in respectively in corresponding location hole 11, is further positioned to workpiece 1.
When carrying out airtight detection to cavity workpiece 1 using the air tightness detection apparatus, the piston rod of master cylinder 6 and side cylinder is equal
It retracts, workpiece 1 is placed in the positioning seat 8 in lower plate 4, and be inserted into two positioning pins 41 in the location hole 11 of workpiece 1, to work
Part 1 is positioned, and lower contact at this time, which is cut, closes the hole 10 on 1 lower surface of workpiece；The piston rod of master cylinder 6 stretches out, middle plate 3
It moves down, until each seaming chuck on middle plate 3 is bonded with the upper surface of workpiece 1 respectively and closes corresponding hole 10；Each side cylinder
Piston rod stretches out, until each side pressure head is bonded with the side surface of workpiece 1 and closes corresponding hole 10；At this point, opening inlet suction port
91, to empty interacvity air-filling, the air pressure change in cavity is then monitored by air gauge, as the changing value of air pressure is greater than the threshold of setting
Value (can be zero, the setting of concrete foundation air-tightness requirement), then determine that the air-tightness of the void space is unqualified.
Airtight detection carried out to cavity workpiece by the air tightness detection apparatus, apparatus structure is simple and small volume, has
Advantage easy to use, detection efficiency is higher and testing result is reliable.
The above embodiments are only for explaining the technical ideas and features of the present invention, is a kind of preferred embodiment, mesh
Be that person skilled in the art can understand the content of the utility model and implement accordingly, this reality can not be limited with this
With novel protection scope.Equivalent transformation or modification made by all Spirit Essences according to the present utility model should all be covered at this
Within the protection scope of utility model.
Claims (9)
1. a kind of air tightness detection apparatus of cavity workpiece, which is characterized in that including upper plate setting up and down and lower plate, be fixedly connected
Column between the upper plate and the lower plate, the middle plate that can be set to being slidable in the vertical direction on the column, setting
In the master cylinder on the upper plate and the multiple side cylinders being set in the lower plate, the lower plate is equipped with to match with workpiece
It closes to accommodate the positioning seat of workpiece, the lower end of the piston rod of the master cylinder is connected with the middle plate, and the middle plate is equipped with
For by the closed multiple seaming chucks in each hole on workpiece surface, the end of the piston rod of each side cylinder to be respectively equipped with
For by the closed side pressure head in each hole on workpiece side surface, the air tightness detection apparatus to further include for the cavity with workpiece
The inlet channel of connection.
2. air tightness detection apparatus according to claim 1, which is characterized in that the entrance of the inlet channel is equipped with and is used for
Connect the inlet suction port of tracheae.
3. air tightness detection apparatus according to claim 2, which is characterized in that the tracheae is equipped with air gauge.
4. air tightness detection apparatus according to claim 2, which is characterized in that be fixedly installed in the lower plate for by work
The closed push-down head in hole on the lower surface of part, the inlet channel are opened in the push-down head.
5. air tightness detection apparatus according to claim 1, which is characterized in that the multiple seaming chuck includes pressing on first
Head, the second seaming chuck, third seaming chuck, the 4th seaming chuck and the 5th seaming chuck, first seaming chuck, the second seaming chuck,
Third seaming chuck is fixedly connected with, the 4th seaming chuck and the 5th seaming chuck in the lower surface of the middle plate.
6. air tightness detection apparatus according to claim 1, which is characterized in that the multiple side cylinder is circumferentially positioned at described
The surrounding of positioning seat.
7. air tightness detection apparatus according to claim 6, which is characterized in that the multiple side cylinder includes set on described fixed
The first side cylinder, second side cylinder on front side of the positioning seat, the third on the right side of the positioning seat on the left of the seat of position
Side cylinder and the 4th side cylinder and the 5th side cylinder on rear side of the positioning seat, the piston rod of first side cylinder
Right end is equipped with the first side pressure head, and the rear end of the piston rod of second side cylinder is equipped with second side pressure head, the third side
The left end of the piston rod of cylinder is equipped with third side pressure head, and the front end of the piston rod of the 4th side cylinder is equipped with the 4th and flanks
The front end of head, the piston rod of the 5th side cylinder is equipped with the 5th side connector.
8. air tightness detection apparatus according to claim 1, which is characterized in that the seaming chuck and the side pressure head have respectively
There is the sealing plane for being affixed with the surface of workpiece and merging the corresponding hole being completely covered on workpiece.
9. air tightness detection apparatus according to claim 1, which is characterized in that the lower plate is equipped with the positioning upwardly extended
Pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820808886.6U CN208239034U (en) | 2018-05-29 | 2018-05-29 | A kind of air tightness detection apparatus of cavity workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820808886.6U CN208239034U (en) | 2018-05-29 | 2018-05-29 | A kind of air tightness detection apparatus of cavity workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208239034U true CN208239034U (en) | 2018-12-14 |
Family
ID=64575977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820808886.6U Active CN208239034U (en) | 2018-05-29 | 2018-05-29 | A kind of air tightness detection apparatus of cavity workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208239034U (en) |
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2018
- 2018-05-29 CN CN201820808886.6U patent/CN208239034U/en active Active
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