Metal head water tightness test fixture

Abstract

The utility model provides a kind of metal head water tightness test fixture, it is related to positioning tooling technical field, water tank, fixed bottom plate in water tank, positioning block and hold-down cylinder are set on bottom plate, positioning block is opened and communicates with upper end face and side face air inlet hole, hold-down cylinder is set above positioning block, the plug is set in the piston rod of hold-down cylinder. When using, metal head is placed on positioning block and one end opening covers air inlet hole, control hold-down cylinder pushes plug and blocks the other end opening of metal head, while compressing metal head on positioning block, external air source connects the air inlet hole of positioning block side face and inflates, prevent water in water tank to overflow metal head, whether there is bubble to be generated to judge water tightness, by hold-down cylinder compressing plug in the opening of metal head, then utilize the air inlet hole of positioning block to realize inflation, avoid the drop of plug, improve test efficiency.

Description

Technical Field

[0001] This utility model relates to the field of positioning fixtures, and more specifically, to a metal head watertightness testing fixture. Background Technology

[0002] like Figure 1-2 The metal head shown is used to connect pipes. To ensure the sealing performance of the metal head, a water tightness test needs to be performed after production. The traditional test method is to plug the three ports of the metal head with a plug, with an air tube inserted into one of the plugs. The metal head is then completely immersed in water, and air is injected into the metal head through the air tube. The water tightness of the metal head is judged by observing whether there are air bubbles. However, the method of plugging the metal head with a plug is prone to problems. If the plug is not sealed tightly, it will fall off and leak air if the air pressure is increased slightly, resulting in low test efficiency. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a metal head water tightness test fixture, which aims to improve the technical problem that the existing metal head water tightness test is prone to the problem of the plug falling off and causing air leakage.

[0004] This utility model is implemented as follows: a metal head water tightness test fixture includes a water tank, a fixed base plate inside the water tank, a positioning block and a clamping cylinder provided on the base plate, the positioning block has an air inlet hole connecting the upper end face and the side face, the clamping cylinder is located above the positioning block, and the piston rod of the clamping cylinder is provided with a plug.

[0005] Furthermore, positioning pin holes are provided on both sides of the air inlet on the upper end surface of the positioning block.

[0006] Furthermore, the clamping cylinder includes a first clamping cylinder and a second clamping cylinder, and the plug includes a first plug and a second plug. The piston rod of the first clamping cylinder is connected to the first plug, and the piston rod of the second clamping cylinder is connected to the second plug.

[0007] Furthermore, two fixing plates are provided on the base plate, and the first inclined plate and the second inclined plate are respectively installed at an angle. The first pressing cylinder is installed on the first inclined plate, and the second pressing cylinder is installed on the second inclined plate.

[0008] Furthermore, the positioning block is further provided with a silicone sealing gasket, and an air pipe is installed in the air inlet on the upper end face of the positioning block, the air pipe passing through the silicone sealing gasket.

[0009] Furthermore, the positioning block has mounting holes, through which bolts pass to fix the positioning block to the base plate.

[0010] The beneficial effects of this utility model are: This utility model discloses a simple and ingeniously designed fixture for testing the water tightness of a metal head. It includes a water tank, a fixed base plate inside the tank, a positioning block and a clamping cylinder on the base plate, and an air inlet on the positioning block connecting its upper and side surfaces. The clamping cylinder is positioned above the positioning block, and its piston rod has a plug. In use, the metal head is placed on the positioning block with one inlet covering the air inlet. The clamping cylinder pushes the plug to block the other outlet of the metal head, simultaneously clamping the metal head onto the positioning block. An external air source is connected to the air inlet on the side of the positioning block and inflates it. Water is poured into the tank until it covers the metal head. The presence of air bubbles is observed to determine the water tightness. The clamping cylinder presses the plug against the outlet of the metal head, and the air inlet of the positioning block is used for inflation, preventing the plug from falling off and improving testing efficiency. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0012] Figure 1 Schematic diagram of the metal head structure; Figure 2 A schematic diagram of the metal head from another angle; Figure 3 A schematic diagram of the metal head water tightness testing fixture and the metal head according to this utility model; Figure 4 A schematic diagram of the structure of the metal head watertightness testing fixture described in this utility model.

[0013] Figure label: 10. Sink; 20. Base plate; 201. Positioning block; 2011. Air inlet; 202. Fixing plate; 203. First clamping cylinder; 2031. First plug; 204. Second clamping cylinder; 2041. Second plug; 205. Positioning pin hole; 30. Metal head; 301. Import; 302. Export. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0015] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0016] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0017] like Figure 1-2 The metal head 30 shown includes an inlet 301 and two outlets 302.

[0018] Please refer to Figure 3-4This utility model provides a water tightness testing fixture for a metal head 30, including a water tank 10, a fixed base plate 20 inside the water tank 10, a positioning block 201 and a clamping cylinder on the base plate 20, the positioning block 201 having an air inlet 2011 connecting the upper end face and the side face, the side air inlet 2011 being used to connect to an external air source, and the upper end face air inlet 2011 being used to inflate the metal head 30. Furthermore, the upper end face of the positioning block 201 has positioning pin holes 205 on both sides of the air inlet holes 2011, and the metal head 30 has through holes on both sides, the positioning pins being inserted into the positioning pin holes 205 through the through holes to further position the metal head 30 and prevent deviation.

[0019] Please refer to Figure 3-4 The pressing cylinder is positioned above the positioning block 201, and a plug is installed on the piston rod of the pressing cylinder. Specifically, the pressing cylinder includes a first pressing cylinder 203 and a second pressing cylinder 204, and the plug includes a first plug 2031 and a second plug 2041. The piston rod of the first pressing cylinder 203 is connected to the first plug 2031, and the piston rod of the second pressing cylinder 204 is connected to the second plug 2041. The first pressing cylinder 203 is controlled to push the first plug 2031 obliquely downward into one outlet 302 of the metal head 30, and the second pressing cylinder 204 is controlled to push the second plug 2041 into the other outlet 302 of the metal head 30. The cylinder presses down on the plug instead of manually inserting the plug into the outlet 302 of the metal head 30, thus preventing the plug from falling off during the pressurization process.

[0020] Furthermore, two fixing plates 202 are provided on the base plate 20. The first inclined plate and the second inclined plate are respectively installed at an angle on the two fixing plates 202. The first pressing cylinder 203 is installed on the first inclined plate, and the second pressing cylinder 204 is installed on the second inclined plate. The first inclined plate and the second inclined plate are locked and fixed to the two fixing plates 202 by bolts. The first inclined plate and the second inclined plate can be adjusted and fixed according to the position of the outlet 302 of different metal heads 30 to improve practicality.

[0021] In another embodiment, the positioning block 201 is further provided with a silicone sealing gasket, and an air pipe is installed in the air inlet 2011 on the upper end face of the positioning block 201. The air pipe passes through the silicone sealing gasket, and the metal head 30 is placed in the silicone sealing gasket of the positioning block 201. The air pipe leads to the inside of the metal head 30, and the pressing cylinder presses the metal head 30 into the silicone sealing gasket. In this embodiment, the addition of a silicone sealing gasket is used to achieve a better sealing effect.

[0022] In this embodiment, the positioning block 201 has a mounting hole, and the bolt passes through the mounting hole to fix the positioning block 201 to the base plate 20. The detachable positioning block 201 can be replaced with a positioning block 201 at a different position of the inlet 301 of the metal head 30, thereby further improving practicality.

[0023] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A metal head watertightness testing fixture, characterized in that; The device includes a water tank, a fixed base plate inside the water tank, a positioning block and a clamping cylinder on the base plate, an air inlet connecting the upper end face and the side face of the positioning block, and a clamping cylinder positioned above the positioning block, with a plug on the piston rod of the clamping cylinder.

2. The metal head watertightness testing fixture according to claim 1, characterized in that: The upper end face of the positioning block is provided with positioning pin holes on both sides of the air inlet.

3. The metal head watertightness testing fixture according to claim 1, characterized in that: The clamping cylinder includes a first clamping cylinder and a second clamping cylinder, and the plug includes a first plug and a second plug. The piston rod of the first clamping cylinder is connected to the first plug, and the piston rod of the second clamping cylinder is connected to the second plug.

4. The metal head watertightness testing fixture according to claim 3, characterized in that: Two fixing plates are provided on the base plate. The first inclined plate and the second inclined plate are respectively installed at an angle. The first pressing cylinder is installed on the first inclined plate, and the second pressing cylinder is installed on the second inclined plate.

5. The metal head watertightness testing fixture according to claim 1, characterized in that: The positioning block is further provided with a silicone sealing gasket, and an air inlet is installed on the upper end face of the positioning block, through which the air pipe passes.

6. The metal head watertightness testing fixture according to claim 1, characterized in that: The positioning block has mounting holes, and bolts pass through the mounting holes to fix the positioning block to the base plate.

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