CN111795780A - Fuel pump support gas tightness testing arrangement - Google Patents
Fuel pump support gas tightness testing arrangement Download PDFInfo
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- CN111795780A CN111795780A CN202010840109.1A CN202010840109A CN111795780A CN 111795780 A CN111795780 A CN 111795780A CN 202010840109 A CN202010840109 A CN 202010840109A CN 111795780 A CN111795780 A CN 111795780A
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- water tank
- cylinder
- fuel pump
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
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- Examining Or Testing Airtightness (AREA)
Abstract
A fuel pump support air tightness testing device relates to the technical field of detection test equipment and comprises a water tank and an air tightness table capable of moving up and down, wherein a main clamp, an auxiliary clamp and a plurality of plugging blocks used for plugging corresponding holes in a workpiece are arranged on the air tightness table; the main clamp comprises a main base for placing a workpiece, a plurality of ejector rods for tightly abutting the bottom surface of the right part of the workpiece against the main base, a bearing plate connected to the top end of each ejector rod, and a top cylinder connected with the bearing plate and used for driving the bearing plate to move up and down; the auxiliary clamp comprises an auxiliary base arranged on the left side of the main base, a main side push cylinder arranged on the auxiliary base and a side pressure block connected with the right end of a piston rod of the main side push cylinder, and the right end face of the side pressure block is provided with a special-shaped groove used for matching the left side face and the bottom face of the left part of a workpiece; the water tank is provided with a lifting cylinder, and the top end of a piston rod of the lifting cylinder is fixedly connected with the airtight platform. The invention can improve the working efficiency, reduce the labor force and improve the accuracy of the air tightness test.
Description
Technical Field
The invention relates to the technical field of detection test equipment, in particular to a fuel pump bracket air tightness testing device.
Background
The fuel pump bracket is an important component of a fuel pump structure, and as shown in fig. 1, in order to ensure the sealing effect of the fuel pump, the fuel pump bracket needs to have strict sealing performance, so that before the fuel pump bracket leaves a factory, the fuel pump bracket is generally subjected to an air tightness test. According to the traditional fuel pump support air tightness test, a workpiece is clamped and connected with an air pipe through a set of simple clamp, hoisting equipment such as an electric hoist is used for hoisting into a water tank, the labor intensity of the operation process is high, the efficiency is low, the conditions that the clamp is loosened and the like possibly caused in the operation process are avoided, and the accuracy of the air tightness test is influenced.
Disclosure of Invention
The invention aims to provide a fuel pump bracket air tightness testing device, which can utilize an air cylinder to drive an air tight table to directly move into a water tank so as to improve the working efficiency, reduce the labor force and improve the accuracy of an air tightness test.
In order to solve the technical problems, the invention adopts the following technical scheme: a fuel pump bracket air tightness testing device comprises a water tank and an air tightness table capable of moving up and down, wherein a main clamp, an auxiliary clamp and a plurality of plugging blocks for plugging corresponding holes on a workpiece are arranged on the air tightness table; the main clamp comprises a main base for placing a workpiece, a plurality of positioning pins arranged on the main base, a plurality of ejector rods for tightly abutting the right bottom surface of the workpiece on the main base, a bearing plate connected to the top end of each ejector rod, and a top cylinder connected with the bearing plate and used for driving the bearing plate to move up and down, wherein the bottom end of each ejector rod can plug a hole in a corresponding position on the workpiece; the auxiliary clamp comprises an auxiliary base arranged on the left side of the main base, a main side push cylinder arranged on the auxiliary base and a side pressure block connected with the right end of a piston rod of the main side push cylinder, wherein a special-shaped groove used for matching the left side surface and the left bottom surface of a workpiece is formed in the right end surface of the side pressure block, a top pin penetrates through the side pressure block along the movement direction of the side pressure block, a limit block is arranged at the left end of the top pin, a tension spring is sleeved on the top pin, two ends of the tension spring respectively abut against the right end of the limit block and the left end of the side pressure block, a first plug capable of plugging a hole in the corresponding position on the workpiece is arranged at the right end of the top pin, an auxiliary side push cylinder is further arranged on the auxiliary base, and the right end of a piston rod of the auxiliary side; any one of the blocks is connected with an air inlet pipe, and one end of the air inlet pipe extends into one end of the block and can be communicated with the inside of the workpiece; the water tank is provided with a lifting cylinder below, the top end of a piston rod of the lifting cylinder extends into the water tank and upwards extends to be fixedly connected with the airtight platform, and the lifting cylinder can drive the airtight platform to move up and down, so that the workpiece can be immersed into the water tank.
Furthermore, the right end of the side pressing block is fixedly connected with a plurality of guide rods along the moving direction of the side pressing block, a plurality of guide holes are correspondingly formed in the left end of the main base, and the right end of each guide rod is inserted into the corresponding guide hole and can move along the guide hole.
Preferably, the airtight bench is fixedly mounted with four support rods, the top end of each support rod is connected with a mounting plate, and the top cylinder is fixed on the mounting plate.
More preferably, each block is correspondingly arranged on a separate block cylinder.
More preferably, the air-tight platform is arranged in the cabinet above the water tank, and the cabinet is provided with a cabinet door.
The invention has the beneficial effects that: put the fuel pump support work piece on airtight bench, successively through main anchor clamps, vice anchor clamps and each sprue with the work piece location clamp tight after, usable lift cylinder drives whole airtight bench and work piece and descends the aquatic in the water tank fast, then alright ventilate in order to carry out the gas tightness test to the intake pipe. This process can effectively improve work efficiency, reduce the labour to because the stability that lift cylinder drove airtight platform and work piece removal is better than traditional manually operation electric hoist, consequently can avoid the pine of frock clamp to a great extent to take off, and then improves the accuracy of gas tightness test.
Drawings
FIG. 1 is a schematic structural view of a fuel pump bracket;
FIG. 2 is a schematic view of the overall structure of the lower portion of the cabinet in the embodiment of the present invention;
FIG. 3 is a schematic view of an overall structure of the cabinet according to the embodiment of the present invention when the cabinet door is closed;
FIG. 4 is a partial schematic structural view of a main jig and a sub-jig in the embodiment;
FIG. 5 is a schematic structural diagram of an embodiment of a sub-jig.
The reference signs are:
1-water tank 2-airtight table 3-workpiece
4-block 5 a-main base 5 b-top rod
6 b-main side pushing cylinder 6 c-side pressing block 6 d-special-shaped groove
6e, guide rod 7, ejector pin 7a and limiting block
7 b-first plug 8-secondary side-push cylinder 8 a-second plug
9-air inlet pipe 10-lifting cylinder 11-supporting rod
12-mounting plate 13-cabinet.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
It should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used broadly in the present invention, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Further, in the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not in direct contact, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the invention.
As shown in fig. 1-5, the fuel pump bracket air tightness testing device comprises a water tank 1 and an air tight table 2 capable of moving up and down, wherein a main clamp, an auxiliary clamp and a plurality of plugging blocks 4 for plugging corresponding holes on a workpiece 3 are arranged on the air tight table 2; the main fixture comprises a main base 5a for placing the workpiece 3, a plurality of positioning pins (not shown in the drawing) arranged on the main base 5a, a plurality of ejector rods 5b for abutting the bottom surface of the right part of the workpiece 3 on the main base 5a, a bearing plate 5c connected to the top end of each ejector rod 5b, and a top cylinder 5d connected to the bearing plate 5c and used for driving the bearing plate 5c to move up and down, wherein the bottom end of each ejector rod 5b can plug a hole at a corresponding position on the workpiece 3; the auxiliary clamp comprises an auxiliary base 6a arranged on the left side of the main base 5a, a main side push cylinder 6b arranged on the auxiliary base 6a and a side pressure block 6c connected with the right end of a piston rod of the main side push cylinder 6b, a special-shaped groove 6d used for matching the left side surface and the left bottom surface of the workpiece 3 is arranged on the right end surface of the side pressure block 6c, a push pin 7 penetrates through the side pressure block 6c along the movement direction of the side pressure block, a limit block 7a is arranged at the left end of the push pin 7, a tension spring is sleeved on the push pin 7, two ends of the tension spring respectively abut against the right end of the limit block 7a and the left end of the side pressure block 6c, a first plug 7b capable of plugging a hole at a corresponding position on the workpiece 3 is arranged at the right end of the push pin 7, an auxiliary side push cylinder 8 is further arranged on the auxiliary base 6a, and a second plug 8a used for plugging a hole corresponding; any one of the blocks 4 is connected with an air inlet pipe 9, and one end of the air inlet pipe 9 extends into one end of the block 4 and can be communicated with the inside of the workpiece 3; the below of water tank 1 is equipped with lift cylinder 10, and the top of lift cylinder 10 piston rod stretches into water tank 1 and up extend to with airtight platform 2 fixed connection, and lift cylinder 10 can drive airtight platform 2 and reciprocate to can make work piece 3 dip in water tank 1.
The fuel pump support air tightness testing device provided by the embodiment works, firstly, the position of the air tight table 2 is located above the water tank 1, a fuel pump support workpiece is placed on the air tight table 2, the workpiece 3 is positioned and clamped well by the main clamp, the auxiliary clamp and the plugs 4, the whole air tight table 2 and the workpiece 3 can be driven by the lifting cylinder 10 to rapidly descend into the water in the water tank 1, then, the air inlet pipe 9 can be ventilated to perform air tightness test, whether bubbles are generated in the water tank 1 to evaluate the air tightness is observed, the air tight table 2 is pushed upwards by the lifting cylinder 10 after the test is completed, the workpiece 3 can be pushed upwards from the water tank 1, the plugs 4, the auxiliary clamp and the main clamp are sequentially loosened and detached, and the workpiece 3 can be taken down. This process can effectively improve work efficiency, reduce the labour to because the stability that lift cylinder 10 drove airtight platform 2 and 3 removals of work piece is better than traditional manually operation electric hoist, consequently can avoid frock clamp's pine to a great extent to take off, and then improves gas tightness test's accuracy.
It should be noted that, as will be known by those skilled in the art, each cylinder structure component in the device has a normal waterproof effect, in a specific test process, a part of threaded holes on the workpiece 3 can be sealed by screwing in the plugs in advance, and structures such as shaft holes on the workpiece 3 can be sealed by arranging the stoppers at the bottom ends of the push rods 5b, and those skilled in the art do not have any technical obstacles on the positions and the number of the push rods 5b, and they need to be designed correspondingly according to the actual structure of the workpiece 3.
In the above embodiment, by providing the knock pin 7 and enabling the knock pin 7 to move synchronously with the side pressure block 6c, the knock pin 7 does not need to be equipped with an additional cylinder, the cost is saved, the structure of the sub-fixture is more compact, and the tension spring (not shown in the drawing) sleeved on the knock pin 7 enables the knock pin 7 to generate a certain thrust towards the right end, and a sufficient assembly distance can be reserved.
Further, on the basis, the right end of the side pressing block 6c is fixedly connected with a plurality of guide rods 6e along the moving direction, the left end of the main base 5a is correspondingly provided with a plurality of guide holes, and the right end of each guide rod 6e is inserted into the corresponding guide hole and can move along the guide hole, so that the stability of the side pressing block 6c in the moving process can be effectively improved.
Preferably, four support rods 11 are fixedly installed on the airtight table 2, a mounting plate 12 is connected to the top end of each support rod 11, the top cylinder 5d is fixed on the mounting plate 12, and when the lifting cylinder 10 drives the airtight table 2 to move up and down, the support rods 11, the mounting plate 12 and the top cylinder 5d also move synchronously with the airtight table 2.
More preferably, each block 4 is correspondingly arranged on a single block cylinder, and the orientation direction of the block 4 is not particularly limited, because different fuel pump brackets are different in the structural positions of some holes, so that the specific orientation of the block 4 can be set according to the actual structure of the workpiece 3, and no obstacle exists for a person skilled in the art.
In addition, in this embodiment, this testing arrangement still includes a rack 13, water tank 1 sets up the lower part at rack 13, airtight platform 2 is located the rack 13 of 1 tops of water tank, rack 13 is equipped with the cabinet door, cabinet 12 divide into the upper cabinet body and the lower cabinet body, electrical equipment can be placed to the left part of the lower cabinet body, water tank 1 is then placed to the right part, the left part of the upper cabinet body can set up the control maincenter and set up and control the panel, right part space then can hold airtight platform 2, main fixture, vice fixture and sprue 4 etc, every interval of the upper cabinet body and the lower cabinet body can all set up the cabinet door alone, conveniently carry out relevant operation or maintenance.
The above embodiments are preferred implementations of the present invention, and the present invention can be implemented in other ways without departing from the spirit of the present invention.
Some of the drawings and descriptions of the present invention have been simplified to facilitate the understanding of the improvements over the prior art by those skilled in the art, and some other elements have been omitted from this document for the sake of clarity, and it should be appreciated by those skilled in the art that such omitted elements may also constitute the subject matter of the present invention.
Claims (5)
1. Fuel pump support gas tightness testing arrangement, its characterized in that: the device comprises a water tank (1) and an airtight table (2) capable of moving up and down, wherein a main clamp, an auxiliary clamp and a plurality of plugging blocks (4) used for plugging corresponding holes in a workpiece (3) are arranged on the airtight table (2);
the main clamp comprises a main base (5 a) for placing a workpiece (3), a plurality of positioning pins arranged on the main base (5 a), a plurality of ejector rods (5 b) for abutting the bottom surface of the right part of the workpiece (3) against the main base (5 a), a bearing plate (5 c) connected to the top end of each ejector rod (5 b), and a top cylinder (5 d) connected with the bearing plate (5 c) and used for driving the bearing plate (5 c) to move up and down, wherein the bottom end of each ejector rod (5 b) can plug a hole in a corresponding position on the workpiece (3);
the auxiliary clamp comprises an auxiliary base (6 a) arranged on the left side of the main base (5 a), a main side push cylinder (6 b) arranged on the auxiliary base (6 a) and a side pressure block (6 c) connected with the right end of a piston rod of the main side push cylinder (6 b), wherein a special-shaped groove (6 d) used for being matched with the left side face and the bottom face of the left part of a workpiece (3) is formed in the right end face of the side pressure block (6 c), a top pin (7) penetrates through the side pressure block (6 c) along the movement direction of the side pressure block, a limiting block (7 a) is arranged at the left end of the top pin (7), a tension spring is sleeved on the top pin (7), the two ends of the tension spring are respectively abutted against the right end of the limiting block (7 a) and the left end of the side pressure block (6 c), a first plug (7 b) capable of plugging a hole in the corresponding position on the workpiece (3) is arranged at the right end of the top pin (7), and an auxiliary side, the right end of the piston rod of the auxiliary side pushing cylinder (8) is connected with a second plug (8 a) for plugging a hole corresponding to the left end of the workpiece (3);
any one of the blocking blocks (4) is connected with an air inlet pipe (9), and one end of the air inlet pipe (9) extends into one end of the blocking block (4) and can be communicated with the inside of the workpiece (3);
the utility model discloses an airtight platform, including water tank (1), the below of water tank (1) is equipped with lift cylinder (10), the top of lift cylinder (10) piston rod stretches into water tank (1) and up extends to with airtight platform (2) fixed connection, lift cylinder (10) can drive airtight platform (2) and reciprocate, thereby can make work piece (3) immerse in water tank (1).
2. The fuel pump bracket airtightness testing apparatus according to claim 1, characterized in that: the right end of the side pressing block (6 c) is fixedly connected with a plurality of guide rods (6 e) along the moving direction of the side pressing block, a plurality of guide holes are correspondingly formed in the left end of the main base (5 a), and the right end of each guide rod (6 e) is inserted into the corresponding guide hole and can move along the guide hole.
3. The fuel pump bracket airtightness testing apparatus according to claim 2, characterized in that: four support rods (11) are fixedly mounted on the airtight platform (2), the top end of each support rod (11) is connected with a mounting plate (12), and the top cylinder (5 d) is fixed on the mounting plate (12).
4. The fuel pump bracket airtightness testing apparatus according to claim 3, characterized in that: each block (4) is correspondingly arranged on a single block cylinder.
5. The fuel pump bracket airtightness testing apparatus according to claim 4, characterized in that: still include a rack (13), water tank (1) sets up in the lower part of rack (13), airtight platform (2) are arranged in rack (13) above water tank (1), rack (13) are equipped with the cabinet door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010840109.1A CN111795780A (en) | 2020-08-20 | 2020-08-20 | Fuel pump support gas tightness testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010840109.1A CN111795780A (en) | 2020-08-20 | 2020-08-20 | Fuel pump support gas tightness testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111795780A true CN111795780A (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010840109.1A Pending CN111795780A (en) | 2020-08-20 | 2020-08-20 | Fuel pump support gas tightness testing arrangement |
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| CN (1) | CN111795780A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112857707A (en) * | 2021-02-04 | 2021-05-28 | 上海洋深市政工程有限公司 | Underground pipeline water leakage detection device and detection method thereof |
| CN112924103A (en) * | 2021-01-25 | 2021-06-08 | 南京贝特环保通用设备制造有限公司 | Air tightness detection device and method for submersible mixer |
-
2020
- 2020-08-20 CN CN202010840109.1A patent/CN111795780A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112924103A (en) * | 2021-01-25 | 2021-06-08 | 南京贝特环保通用设备制造有限公司 | Air tightness detection device and method for submersible mixer |
| CN112857707A (en) * | 2021-02-04 | 2021-05-28 | 上海洋深市政工程有限公司 | Underground pipeline water leakage detection device and detection method thereof |
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