CN212158932U

CN212158932U - Positioning fixture for manifold air tightness detection

Info

Publication number: CN212158932U
Application number: CN202020532016.8U
Authority: CN
Inventors: 谷毅
Original assignee: Chongqing Wansi Metal Special Forming Co ltd
Current assignee: Chongqing Wansi Metal Special Forming Co ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-12-15
Anticipated expiration: 2030-04-10

Abstract

The utility model belongs to an equipment field for adopting the mode test manifold's of observing the bubble in the liquid bath gas tightness specifically is manifold gas tightness detects and uses positioning fixture, which comprises a bracket, be equipped with two fixture that go on fixing to the manifold tip on the support, every fixture all includes location supporting part and removal portion, and removal portion sets up with location supporting part relatively, and location supporting part and support are quiet to be connected, removal portion and support swing joint, the last tip end cap that carries out the shutoff to the tip opening of manifold that is connected with of fixture is connected with the middle part open-ended middle part end cap that is used for the shutoff manifold on the support, be connected with on middle part end cap and/or the tip end cap can with the intake pipe of manifold intercommunication. The scheme solves the problem that the manifold air tightness detection needs to be fixed firstly and then blocked in the prior art, so that the detection efficiency of the manifold is low.

Description

Positioning fixture for manifold air tightness detection

Technical Field

The utility model belongs to an equipment field for adopting the mode test manifold's of observing the bubble in the liquid bath gas tightness specifically is manifold gas tightness detects and uses positioning fixture.

Background

The manifold is a gas pipe applied to a fuel engine, and the requirement for airtightness is very high. Thus, the manifold needs to be tested for hermeticity after the manufacturing process is complete. The manifold is provided with a plurality of communicated openings, when in detection, all the openings are blocked, then pressurized air is introduced through one of the openings, and the air leakage condition of the manifold is observed to judge the air tightness of the manifold. The manifold has a plurality of bending sections, so, when detecting the manifold, need fix the manifold earlier, then utilize the end cap to block up the opening of manifold and detect. The existing manifold is provided with two symmetrically distributed pipelines, the whole manifold is provided with three openings with larger pore diameters, the three openings are respectively distributed at two ends and the middle part of the manifold, and the planes of the three openings are not coplanar. When the manifold is detected by using the detection clamp in the prior art, the manifold needs to be fixed firstly, so that the detection time of the manifold is longer, and the whole detection efficiency is lower.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a manifold gas tightness detects uses positioning fixture to need earlier fixed back shutoff when solving among the prior art manifold gas tightness and detecting, thereby lead to the lower problem of detection efficiency of manifold.

In order to achieve the aim, the utility model discloses a basic scheme provides a manifold gas tightness detects uses positioning fixture, which comprises a bracket, be equipped with two fixture that go on fixing to the manifold tip on the support, every fixture all includes location supporting part and removal portion, and removal portion sets up with the location supporting part relatively, location supporting part and support quiet connection, removal portion and support swing joint, fixture is last to be connected with the tip end cap that carries out the shutoff to the tip opening of manifold, is connected with the middle part end cap that is used for the middle part open-ended of shutoff manifold on the support, be connected with on middle part end cap and/or the tip end cap can with the intake pipe of manifold intercommunication.

The principle and the beneficial effect of the basic scheme are as follows: the end part of the manifold is clamped and fixed through the relative movement of the moving part and the positioning supporting part, the end part plug on the clamping mechanism is used for plugging the end part opening of the manifold, so that the operation of clamping and fixing the end part of the manifold and plugging the end part opening is completed simultaneously, after the middle part plug is used for plugging the middle part opening of the manifold, the air inlet pipe is used for ventilating the inside of the manifold, and the operation of detecting the air tightness of the manifold can be realized. Compared with the prior art, the end opening of the manifold is not required to be blocked after being fixed, and the working efficiency is improved.

Further, the moving part is connected with the bracket through a linear telescopic mechanism. The moving part and the support are connected through the linear telescopic mechanism, so that the moving part can move linearly under the action of the linear telescopic mechanism, and the manifold can be clamped and operated quickly by the moving part conveniently.

Further, the linear telescopic mechanism is an air cylinder. The cylinder is selected as the linear telescopic mechanism, and the cylinder is driven by pressure gas, so that the cylinder can realize quick telescopic movement, and the quick movement of the moving part is convenient to realize.

Further, the end plug is connected with the moving part. The end plug blocks the end opening of the manifold under the action of the moving part, so that the acting force applied by the moving part directly acts on the manifold through the end plug, and the sealing effect of the end plug on the end opening of the manifold is improved.

Furthermore, the middle plug is connected with the support through the cylinder. Connect at middle part end cap and support through the cylinder, make the middle part end cap realize removing through the cylinder, make the middle part end cap before carrying out the shutoff to the middle part opening of manifold, the distance between middle part end cap and the manifold is great to reduce the interference effect that the middle part end cap produced when getting from the support and put the manifold, made things convenient for getting of manifold to put the operation.

Furthermore, the support is statically connected with a stop block which is matched with the middle plug to clamp and fix the middle part of the manifold. Set up baffle and middle part end cap and cooperate and carry out the centre gripping to the middle part of manifold, make the manifold bear the middle part end cap and give the dog with effort transmission that can be timely when its effort of exerting to the middle part of manifold can be avoided the condition of bending deformation under the effect of middle part end cap, and then avoid the manifold to take place the condition of damaging when examining.

Furthermore, a top rod which can be abutted against the manifold is connected to the stop block through threads. The length of the ejector rod protruding out of the stop block can be adjusted by rotating the ejector rod, so that the distance between the ejector rod and the manifold can be adjusted, the supporting effect of the ejector rod on the manifold is guaranteed, the stop block does not need to be replaced again due to the fact that the gap between the stop block and the manifold is too large, and the practicability of the clamp is improved.

Further, the moving part is located obliquely above the positioning support part. The location supporting part is located the oblique below of removal portion, then, the manifold can directly shelve on the location supporting part and can not take place to remove under the effect of gravity, thereby conveniently fix a position the manifold and place the operation, and simultaneously, the removal portion removes in the oblique top of location supporting part, when the removal portion keeps away from the location supporting part under the shrink effect of cylinder, make the removal portion skew location supporting part directly over, thereby made things convenient for the manifold to get from the top of location supporting part and put the operation, avoided the removal portion to get the interference when putting the manifold.

Furthermore, a flexible gasket is fixedly arranged on the supporting surface of the positioning supporting part. The flexible gasket is arranged, so that when the manifold is in contact with the positioning support part, the contact area between the manifold and the positioning support part can be increased through the gasket, the pressure action between the manifold and the positioning support part is reduced, and the manifold and the positioning support part are prevented from being damaged due to overlarge pressure.

Further, the stop block is detachably connected with the support. The mode of connection can be dismantled in the adoption, makes things convenient for to be connected and the separation between dog and the support to the convenient change that realizes the dog.

Drawings

Fig. 1 is a schematic view of a first embodiment of the positioning fixture for detecting the airtightness of the manifold according to the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a manifold A, a bottom plate 1, a first mounting block 2, a supporting block 3, a second mounting block 4, a cylinder 5, an end plug 6, an ejector rod 7, a stop block 8, an air inlet pipe 9, a third mounting block 10, a transverse cylinder 11 and a middle plug 12.

The first embodiment is as follows: as shown in figure 1: manifold gas tightness detects uses positioning fixture, including the support, the support includes rectangular bottom plate 1, and the both ends of bottom plate 1 are provided with fixture respectively. The clamping mechanism comprises a positioning supporting portion and a moving portion, the positioning supporting portion comprises a supporting block 3, a vertical first mounting block 2 is welded on the bottom plate 1, the supporting block 3 is connected to the first mounting block 2 through a bolt, and a flexible gasket is fixedly bonded on a supporting surface of the supporting block 3. The bottom plate 1 is connected with a second mounting block 4 through a bolt, the second mounting block 4 is connected with a linear telescopic mechanism through a bolt, in the embodiment, the linear telescopic mechanism is preferably an air cylinder 5, the air cylinder 5 is obliquely arranged, a moving part is fixed at a moving end of the air cylinder 5 through a bolt, the moving part is located obliquely above the positioning support part, and the moving part can move relative to the positioning support part under the action of the air cylinder 5. An end plug 6 is fixedly bonded to the moving portion, and the moving portion plugs the end opening of the manifold through the end plug 6.

The bottom plate 1 is connected with a third mounting block 10 through a bolt, the third mounting block 10 is connected with a transverse cylinder 11 through a bolt, and a middle plug 12 is fixedly bonded at the moving end of the transverse cylinder 11. An air inlet pipe 9 is connected to the middle plug 12, and one end of the air inlet pipe 9 penetrates through the middle plug 12 and is flush with the plugging surface of the middle plug 12. The position, opposite to the middle plug 12, on the bottom plate 1 is connected with a stop block 8 through a bolt, so that the middle plug 12 and the stop block 8 form a clamping effect on the middle part of the manifold. The stop block 8 is in threaded connection with a transverse ejector rod 7, and the axial direction of the ejector rod 7 is parallel to the moving direction of the middle plug 12.

The specific implementation process is as follows: before the manifold A is positioned, the air cylinder 5 and the transverse air cylinder 11 on the second mounting block 4 are both in a contraction state, so that the distance between the end part plug 6 and the positioning support part is larger, and the distance between the middle part plug 12 and the stop block 8 is larger. The manifold A is placed on the positioning support part, and is in a static state by the aid of the support of the positioning support part, at the moment, the end opening of the manifold A is opposite to the end plug 6, the middle opening of the manifold A is opposite to the middle plug 12, and the middle of the manifold A is in contact with the stop block 8 or the ejector rod 7. And then controlling the air cylinder 5 on the second mounting block 4 to drive the moving part to move towards the corresponding positioning support part, so that the moving part drives the end plug 6 to abut against the end opening of the manifold A, thereby clamping and fixing the end of the manifold A through the moving part and the positioning support part, and simultaneously plugging the end opening of the manifold A by the end plug 6. Then, the transverse cylinder 11 is controlled to drive the middle plug 12 to move towards the middle opening of the manifold A, so that the middle plug 12 and the stop block 8 clamp and fix the middle of the manifold A together, the middle plug 12 plugs the middle opening of the manifold A, and at the moment, the air inlet pipe 9 is communicated with the pipeline of the manifold A through the middle opening of the manifold A. During detection, the air tightness of the manifold A can be detected only by introducing gas with certain pressure into the air inlet pipe 9. After the detection is finished, the air cylinder 5 and the transverse air cylinder 11 on the second mounting block 4 are controlled to contract, so that the manifold A loses the clamped effect, and the manifold A is conveniently taken out of the clamp.

Example two: the only difference from example 1 is that: one end of the air inlet pipe 9 penetrates through the end part plug 6 and is flush with the plugging surface of the end part plug 6.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. Manifold gas tightness detects uses positioning fixture, including the support, its characterized in that: the support is provided with two clamping mechanisms for fixing the end parts of the manifold, each clamping mechanism comprises a positioning supporting part and a moving part, the moving part and the positioning supporting part are arranged oppositely, the positioning supporting part is statically connected with the support, the moving part is movably connected with the support, the clamping mechanism is connected with an end plug for plugging an end opening of the manifold, the support is connected with a middle plug for plugging the middle opening of the manifold, and the middle plug and/or the end plug are connected with an air inlet pipe capable of being communicated with the manifold.

2. The positioning jig for manifold airtightness detection according to claim 1, wherein: the moving part is connected with the bracket through a linear telescopic mechanism.

3. The positioning jig for manifold airtightness detection according to claim 2, wherein: the linear telescopic mechanism is a cylinder.

4. The positioning jig for manifold airtightness detection according to any one of claims 1 to 3, wherein: the end plug is connected with the moving part.

5. The positioning jig for manifold airtightness detection according to claim 4, wherein: the middle plug is connected with the support through the cylinder.

6. The positioning jig for manifold airtightness detection according to claim 5, wherein: the support is statically connected with a stop block which is matched with the middle plug so as to clamp and fix the middle part of the manifold.

7. The positioning jig for manifold airtightness detection according to claim 6, wherein: and the stop block is in threaded connection with a push rod which can be abutted against the manifold.

8. The positioning jig for manifold airtightness detection according to claim 7, wherein: the moving part is positioned obliquely above the positioning support part.

9. The positioning jig for manifold airtightness detection according to claim 8, wherein: and a flexible gasket is fixedly arranged on the supporting surface of the positioning supporting part.

10. The positioning jig for manifold airtightness detection according to claim 9, wherein: the stop block is detachably connected with the support.