CN215931212U - Detection tool for gas sealing leakage test of casting parts - Google Patents
Detection tool for gas sealing leakage test of casting parts Download PDFInfo
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- CN215931212U CN215931212U CN202122538563.4U CN202122538563U CN215931212U CN 215931212 U CN215931212 U CN 215931212U CN 202122538563 U CN202122538563 U CN 202122538563U CN 215931212 U CN215931212 U CN 215931212U
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Abstract
The utility model relates to the technical field of part air tightness detection, and discloses a detection tool for gas sealing leakage detection of a casting part, which comprises a die carrier, a sealing air inlet nozzle, an air nozzle fixing seat and a part positioning seat, wherein the die carrier is provided with a plurality of air inlet holes; the die carrier comprises an upper die plate, a lower die plate and an upright post, and a movable die plate is arranged between the upper die plate and the lower die plate; a plurality of groups of sealing air inlet nozzle groups are arranged between the movable template and the lower template, the lower template is provided with a part positioning seat corresponding to each group of sealing air inlet nozzle groups, the part positioning seat comprises a fixed plate and a positioning plate, a plurality of positioning pins are arranged on the fixed plate, pin holes are arranged on the positioning plate corresponding to the positioning pins, the positioning pins are sleeved with the pin holes, and the upper ends of the positioning pins protrude out of the positioning plate; a plurality of damping springs are arranged between the positioning plate and the fixing plate. The utility model has simple structure, strong universality and simple and convenient operation.
Description
Technical Field
The utility model relates to the technical field of air tightness detection, in particular to a gas sealing leakage test tool for detecting the air tightness of a casting part.
Background
In the machining and manufacturing process of castings, some important parts generally need leakage test detection, such as parts on oil passages and gas passages of equipment, and parts of engines, gearboxes and the like. Due to the manufacturability of the casting, the local part has phenomena of looseness, air holes, sand holes and the like to a certain degree, and looseness and air leakage holes smaller than needle holes cannot be identified by naked eyes.
In the mass production, in order to quickly and accurately screen out qualified parts, leakage test detection equipment is needed to check whether the parts are qualified. The leak test detection tool is connected with a part in a sealing mode through one end (air faucet) of the tool, the other end of the tool is connected with detection equipment through an air pipe in a sealing mode, and after ventilation, the equipment and the meter detect the air pressure change value set in unit time to judge whether air leaks or not, so that qualified parts are screened out.
The leakage test detection equipment is general equipment generally, and the spare part that detects is various, so different parts need design and manufacture different frock location, seal part and carry out the leakage test and detect. The market is increasingly large to simple structure, commonality are strong, easy and simple to handle's gas seal leak testing detection frock demand.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a detection tool for gas sealing leakage test of a casting part, which has the advantages of simple structure, strong universality and simplicity and convenience in operation.
In order to solve the technical problem, the technical scheme adopted by the utility model is as follows: the utility model provides a detect frock for foundry goods part gas seal leakage test, its characterized in that: comprises a mould frame, a sealed air inlet nozzle, an air nozzle fixing seat and a part positioning seat; the die carrier comprises an upper die plate, a lower die plate and upright columns which are vertically arranged and connect four corners of the upper die plate and the lower die plate, a movable die plate is arranged between the upper die plate and the lower die plate, and the movable die plate is connected with the upright columns in a sliding fit manner; the upper template is provided with an air cylinder, a piston rod of the air cylinder penetrates through the upper template from top to bottom and then is fixedly connected with the movable template, and the movable template can be driven to move up and down through the air cylinder; a plurality of groups of sealed air inlet nozzle groups are arranged between the movable template and the lower template, each group of sealed air inlet nozzle groups comprises at least one sealed air inlet nozzle, the sealed air inlet nozzles are fixedly connected with the movable template through an air nozzle fixing seat, and air outlet nozzles of the sealed air inlet nozzles are arranged downwards;
the part positioning seats are respectively arranged on the lower template corresponding to each group of sealed air inlet nozzle groups, each part positioning seat comprises a fixing plate and a positioning plate, the fixing plates are fixedly connected with the lower template, a plurality of positioning pins are arranged on the fixing plates, and the positioning pins are detachably connected with the fixing plates; a pin hole is formed in the positioning plate corresponding to the positioning pin and is sleeved on the positioning pin through the pin hole, and the upper end of the positioning pin protrudes out of the positioning plate; a plurality of damping springs are arranged between the positioning plate and the fixing plate.
When the device is used, the number of the sealed air inlet nozzles in each group of sealed air inlet nozzle groups is determined according to the structure of a part to be detected, the sealed air inlet nozzles are fixed (on a movable template) after the installation positions are determined, and meanwhile, positioning pins at corresponding positions are installed; then placing the part to be detected on a positioning plate, and positioning the part to be detected through a positioning pin; aligning the air outlet nozzle of the sealed air inlet nozzle with the detection hole of the part, and controlling the air cylinder to drive the movable template to move downwards until the air outlet nozzle of the sealed air inlet nozzle is inserted into the detection hole; then starting inflation equipment (an air pump and the like) externally connected with the air inlet pipe to carry out inflation detection, removing the sealed air inlet nozzle from the part after the detection is finished, and taking the part out of the positioning plate to finish the detection; in the actual detection process, a plurality of groups of sealed air inlet nozzle groups and corresponding part positioning seats are arranged on the die frame, so that a plurality of parts to be detected can be detected simultaneously, and the detection efficiency is greatly improved; according to the parts of different series, also can adjust the quantity of sealed suction nozzle in the sealed suction nozzle group and the position and the quantity of locating pin on the locating plate to can be applicable to the part of different series, the commonality is strong, easy and simple to handle.
The movable template is driven to move up and down through the operation of the air cylinder, after a part to be detected is placed on the positioning plate, the air cylinder pushes the movable template to move down, so that the air outlet nozzle on the sealed air inlet nozzle moves to a detection hole on the part, and then the subsequent detection work is carried out; after the detection is finished, the air cylinder pulls the movable template to move upwards, so that the air outlet is separated from the detection hole, the part is conveniently taken out, and then the next part to be detected is placed.
And the device further comprises a detection instrument for controlling and detecting the inflation, pressure maintaining and pressure relief of the part to be detected. The detection instrument is mature in the prior art, is mainly used for carrying out inflation control, pressure maintaining control and pressure relief control on a part to be detected in the detection process, and detecting parameters of the part to be detected in different states according to different detection requirements, so that whether the part to be detected is qualified is judged.
Furthermore, sealed suction nozzle includes the breather pipe, and the one end of this breather pipe is connected with the intake pipe through quick change coupler, and its other end has a play gas nozzle, and the diameter of this play gas nozzle is less than the diameter of breather pipe.
Furthermore, the air tap fixing seat is of a columnar structure, one end of the air tap fixing seat is provided with a positioning sleeve, a waist-shaped through groove is formed in the position, close to the positioning sleeve, of the air tap fixing seat, and the positioning sleeve is communicated with the waist-shaped through groove; the end, connected with the air inlet pipe, of the sealed air inlet nozzle is inserted into the positioning sleeve and is fixedly connected with the positioning sleeve through the locking bolt, and the air inlet pipe of the sealed air inlet nozzle extends out of one side of the waist-shaped through groove. Therefore, the sealing air inlet nozzle is more convenient and quicker to disassemble and assemble, and the later maintenance and replacement are more convenient.
Furthermore, a groove is respectively arranged on two opposite sides of one end, away from the sealed air inlet nozzle, of the air nozzle fixing seat, and the side wall, away from the sealed air inlet nozzle, of the groove is fixedly connected with the movable template through a connecting bolt.
Further, a silicon rubber sealing ring is sleeved on an air outlet nozzle of the sealed air inlet nozzle, and the silicon rubber sealing ring and the air outlet nozzle are tightly matched together; the arrangement of the silicon rubber sealing ring is used for enhancing the sealing performance when the air outlet nozzle is contacted with the detection hole, so that the detection result is more accurate.
Furthermore, a limiting mechanism is arranged between the movable template and the lower template.
Furthermore, the limiting mechanism comprises a limiting column fixed on the movable template, a threaded pipe fixed on the lower template and an adjusting screw rod in threaded fit connection with the threaded pipe, and the central lines of the limiting column and the adjusting screw rod are overlapped; and the adjusting screw rod is also connected with a limit nut in a threaded fit manner, and the limit nut is tightly attached to the upper end of the threaded pipe. The length that the screw rod stretches out the swivel nut is adjusted to the size that detects the part as required, reaches the effect that cope match-plate pattern and lower bolster are closed spacing, and through rubber seal's decrement, better sealed gas, spacing adjusting is screwed up stop nut after length well simultaneously.
Furthermore, a sliding sleeve is sleeved on each upright post, and the movable template is fixedly connected with the sliding sleeve. The movable template can move more smoothly on the upright post, and the abrasion of the movable template is reduced.
Compared with the prior art, the utility model has the following advantages:
the utility model can detect the air tightness of the parts by matching the sealing air inlet nozzle, the air nozzle fixing seat and the fixing bottom plate, can simultaneously detect a plurality of parts by installing a plurality of groups of sealing air inlet nozzles, air nozzle fixing seats and fixing bottom plates on the general die carrier, can be suitable for different series of parts by simply modifying the positioning plate according to different series of parts, and has strong universality and simple and convenient operation.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partial structural schematic diagram of the present invention.
Fig. 3 is a schematic structural view of a sealed air inlet nozzle.
FIG. 4 is a schematic view of an assembly structure of the sealed air inlet nozzle and the nozzle fixing seat.
Fig. 5 is a schematic structural diagram of a bottom plate in the part positioning seat.
FIG. 6 is a schematic view showing the installation of the positioning plate and the components.
The device comprises an upper template, a lower template, a column, a movable template, a cylinder, a 6-sealed air inlet nozzle, a 61-vent pipe, an 62-air inlet pipe, an 63-air outlet nozzle, a 7-air nozzle fixing seat, a 71-positioning sleeve, a 72-waist-shaped through groove, a 73-locking bolt, an 8-fixing plate, a 9-positioning plate, a 10-positioning pin, a 11-damping spring, a 12-silicon rubber sealing ring, a 13-limiting column, a 14-threaded pipe, a 15-adjusting screw, a 16-limiting nut, a 17-sliding sleeve and a 18-part to be detected.
Detailed Description
The utility model will be further explained with reference to the drawings and the embodiments.
Example (b): referring to fig. 1-6, a detection tool for gas sealing leakage test of a casting part comprises a mold frame, a sealing air inlet nozzle 6, an air nozzle fixing seat 7 and a part positioning seat. The die carrier includes cope match-plate pattern 1, lower bolster 2 and vertical setting and with the stand 3 that cope match- plate pattern 1 and 2 four corners of lower bolster link to each other, is equipped with movable mould board 4 between cope match-plate pattern 1 and lower bolster 2, movable mould board 4 links to each other with 3 sliding fit of stand. During implementation, the upright posts 3 are respectively sleeved with a sliding sleeve 17, and the movable template 4 is fixedly connected with the sliding sleeve 17. The movable mould plate 4 can move more smoothly on the upright post 3, and the abrasion of the movable mould plate 4 is reduced. The upper die plate 1 is provided with an air cylinder 5, a piston rod of the air cylinder 5 penetrates through the upper die plate 1 from top to bottom and then is fixedly connected with the movable die plate 4, and the movable die plate 4 can be driven to move up and down through the air cylinder 5. Be equipped with the sealed suction nozzle 6 group of multiunit between movable mould board 4 and lower bolster 2, 6 groups of sealed suction nozzle of every group include at least one sealed suction nozzle 6, this sealed suction nozzle 6 passes through air cock fixing base 7 and movable mould board 4 fixed connection, and the play mouth 63 of sealed suction nozzle 6 sets up down. When the device works, the movable template 4 is driven to move up and down through the operation of the air cylinder 5, so that the air outlet nozzle 63 on the sealed air inlet nozzle 6 moves to a detection hole on a part, and then the subsequent detection work is carried out; after the detection is finished, the air cylinder 5 pulls the movable template 4 to move upwards, so that the air outlet nozzle 63 is separated from the detection hole, the part is conveniently taken out, and the next detection is carried out.
The sealed air inlet nozzle 6 comprises an air pipe 61, one end of the air pipe 61 is connected with an air inlet pipe 62 through a quick-change connector, the other end of the air pipe 61 is provided with an air outlet nozzle 63, and the diameter of the air outlet nozzle 63 is smaller than that of the air pipe 61; the structure is simpler, and stability is better. The air outlet nozzle 63 of the sealed air inlet nozzle 6 is sleeved with a silicone rubber sealing ring 12, and the silicone rubber sealing ring 12 is tightly matched with the air outlet nozzle 63; the arrangement of the silicon rubber sealing ring 12 is used for enhancing the sealing performance when the air outlet nozzle 63 is contacted with the detection hole, so that the detection result is more accurate. The air nozzle fixing seat 7 is of a columnar structure, one end of the air nozzle fixing seat is provided with a positioning sleeve 71, a waist-shaped through groove 72 is formed in the position, close to the positioning sleeve 71, of the air nozzle fixing seat 7, and the positioning sleeve 71 is communicated with the waist-shaped through groove 72. One end of the sealed air inlet nozzle 6, which is connected with the air inlet pipe 62, is inserted into the positioning sleeve 71 and is fixedly connected with the positioning sleeve 71 through a locking bolt 73, and the air inlet pipe 62 of the sealed air inlet nozzle 6 extends out of one side of the waist-shaped through groove 72. Therefore, the sealed air inlet nozzle 6 is more convenient and quicker to disassemble and assemble, and is more convenient to maintain and replace at the later stage. Two opposite sides of one end of the air nozzle fixing seat 7, which is far away from the sealed air inlet nozzle 6, are respectively provided with a groove, and the side wall of the groove, which is far away from the sealed air inlet nozzle 6, is fixedly connected with the movable template 4 through a connecting bolt; the installation is more convenient and faster.
And the part positioning seats are respectively arranged on the lower template 2 corresponding to each group of sealed air inlet nozzles 6. The part positioning seat comprises a fixing plate 8 and a positioning plate 9, the fixing plate 8 is fixedly connected with the lower die plate 2 through bolts, a plurality of positioning pins 10 are arranged on the fixing plate 8, and the positioning pins 10 are detachably connected with the fixing plate 8. A pin hole is formed in the positioning plate 9 corresponding to the positioning pin 10, the positioning pin 10 is sleeved with the pin hole, and the upper end of the positioning pin 10 protrudes out of the positioning plate 9; a plurality of damping springs 11 are arranged between the positioning plate 9 and the fixing plate 8; avoid often changing locating plate 9 and cause unable adjustment base's wearing and tearing. And a limiting mechanism is also arranged between the movable template 4 and the lower template 2. The limiting mechanism comprises an upper column 13 fixed on the movable template 4, a threaded pipe fixed on the lower template 2 and an adjusting screw rod 15 in threaded fit connection with the threaded pipe, and the central lines of the upper column 13 and the adjusting screw rod 15 are overlapped; a limit nut 1614 is also connected to the adjusting screw 15 in a screw-fit manner, and the limit nut 1614 is tightly attached to the upper end of the threaded pipe. The length that the screw rod 15 stretches out the swivel nut is adjusted to the size that detects the part as required, reaches the effect that cope match-plate pattern 1 and lower bolster 2 are closed spacing, and through the decrement of rubber seal 12, better sealed gas, spacing after adjusting the length screw up limit nut 1614 simultaneously.
When the device is implemented, the device also comprises a detection instrument which is used for controlling and detecting the inflation, pressure maintaining and pressure relief of the part to be detected. The detection instrument is mature in the prior art, is mainly used for carrying out inflation control, pressure maintaining control and pressure relief control on a part 18 to be detected in the detection process, and detects parameters of the part to be detected in different states according to different detection requirements, so that whether the part to be detected is qualified is judged. In the specific detection process, the detection instrument performs detection according to a set detection program: constant 50Kpa air pressure, 3-4 seconds change value less than 0.2 Kpa, detection period 30 seconds and so on.
When the device is used, the number of the sealed air inlet nozzles 6 in each group of the sealed air inlet nozzles 6 is determined according to the structure of a part 18 to be detected, the device is fixed (to the movable template 4) after the installation position is determined, and meanwhile, the positioning pins 10 at corresponding positions are installed; then, placing the part 18 to be detected on the positioning plate 9, and positioning the part 18 to be detected through the positioning pin 10; aligning the air outlet nozzle 63 of the sealed air inlet nozzle 6 with the detection hole of the part, and controlling the air cylinder 5 to drive the movable template 4 to move downwards until the air outlet nozzle 63 of the sealed air inlet nozzle 6 is inserted into the detection hole; and then starting an inflating device (an air pump and the like) externally connected with the air inlet pipe 62 to perform inflation detection, removing the sealed air inlet nozzle 6 from the part after the detection is finished, and taking the part out of the positioning plate 9 to finish the detection. The specific process is as follows: the part to be detected is placed on the part positioning seat (guide pin positioning) → moving the movable template 4 and the air nozzle (driven by the air cylinder 5) downwards to the proper position and sealing the detection hole on the part to be detected → (detection equipment controls the air pump) to be inflated and detected → moving the movable template 4 and the sealed air inlet nozzle 6 upwards (driven by the air cylinder 5) after the detection is completed → taking out the qualified part after the detection (the unqualified air leakage part is further judged whether to repair or not, scrap and the like) → completing the part detection once and placing the part which is not detected for the next detection.
In the actual detection process, a plurality of groups of sealed air inlet nozzles 6 and corresponding part positioning seats are arranged on the die frame, so that a plurality of parts to be detected 18 can be detected at the same time, and the detection efficiency is greatly improved; according to different series of parts, the number of the sealed air inlet nozzles 6 in the sealed air inlet nozzle 6 group and the positions and the number of the positioning pins 10 on the positioning plate 9 can be adjusted, so that the device is suitable for different series of parts, high in universality and simple and convenient to operate.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all that should be covered by the claims of the present invention.
Claims (9)
1. The utility model provides a detect frock for foundry goods part gas seal leakage test, its characterized in that: comprises a mould frame, a sealed air inlet nozzle, an air nozzle fixing seat and a part positioning seat; the die carrier comprises an upper die plate, a lower die plate and upright columns which are vertically arranged and connect four corners of the upper die plate and the lower die plate, a movable die plate is arranged between the upper die plate and the lower die plate, and the movable die plate is connected with the upright columns in a sliding fit manner; the upper template is provided with an air cylinder, a piston rod of the air cylinder penetrates through the upper template from top to bottom and then is fixedly connected with the movable template, and the movable template can be driven to move up and down through the air cylinder; a plurality of groups of sealed air inlet nozzle groups are arranged between the movable template and the lower template, each group of sealed air inlet nozzle groups comprises at least one sealed air inlet nozzle, the sealed air inlet nozzles are fixedly connected with the movable template through an air nozzle fixing seat, and air outlet nozzles of the sealed air inlet nozzles are arranged downwards;
the part positioning seats are respectively arranged on the lower template corresponding to each group of sealed air inlet nozzle groups, each part positioning seat comprises a fixing plate and a positioning plate, the fixing plates are fixedly connected with the lower template, a plurality of positioning pins are arranged on the fixing plates, and the positioning pins are detachably connected with the fixing plates; a pin hole is formed in the positioning plate corresponding to the positioning pin and is sleeved on the positioning pin through the pin hole, and the upper end of the positioning pin protrudes out of the positioning plate; a plurality of damping springs are arranged between the positioning plate and the fixing plate.
2. The detection tool for the gas seal leakage test of the casting parts according to claim 1, characterized in that: the device also comprises a detection instrument used for controlling and detecting the inflation, pressure maintaining and pressure relief of the part to be detected.
3. The detection tool for the gas seal leakage test of the casting parts according to claim 1, characterized in that: the sealed air inlet nozzle comprises an air pipe, one end of the air pipe is connected with an air inlet pipe through a quick-change connector, the other end of the air pipe is provided with an air outlet nozzle, and the diameter of the air outlet nozzle is smaller than that of the air pipe.
4. The detection tool for the gas seal leakage test of the casting parts according to claim 3, characterized in that: the air nozzle fixing seat is of a columnar structure, one end of the air nozzle fixing seat is provided with a positioning sleeve, a waist-shaped through groove is formed in the position, close to the positioning sleeve, of the air nozzle fixing seat, and the positioning sleeve is communicated with the waist-shaped through groove; the end, connected with the air inlet pipe, of the sealed air inlet nozzle is inserted into the positioning sleeve and is fixedly connected with the positioning sleeve through the locking bolt, and the air inlet pipe of the sealed air inlet nozzle extends out of one side of the waist-shaped through groove.
5. The detection tool for the gas sealing leakage test of the casting parts according to claim 4, characterized in that: and two opposite sides of one end of the air nozzle fixing seat, which is far away from the sealed air inlet nozzle, are respectively provided with a groove, and the side wall of the groove, which is far away from the sealed air inlet nozzle, is fixedly connected with the movable template through a connecting bolt.
6. The detection tool for the gas seal leakage test of the casting parts according to claim 3, characterized in that: the air outlet nozzle of the sealed air inlet nozzle is sleeved with a silicone rubber sealing ring, and the silicone rubber sealing ring is tightly matched with the air outlet nozzle.
7. The detection tool for the gas seal leakage test of the casting parts according to claim 1, characterized in that: and a limiting mechanism is also arranged between the movable template and the lower template.
8. The detection tool for the gas seal leakage test of the casting parts according to claim 7, characterized in that: the limiting mechanism comprises a limiting column fixed on the movable template, a threaded pipe fixed on the lower template and an adjusting screw rod in threaded fit connection with the threaded pipe, and the central lines of the limiting column and the adjusting screw rod are overlapped; and the adjusting screw rod is also connected with a limit nut in a threaded fit manner, and the limit nut is tightly attached to the upper end of the threaded pipe.
9. The detection tool for the gas seal leakage test of the casting parts according to claim 1, characterized in that: the upright posts are respectively sleeved with a sliding sleeve, and the movable template is fixedly connected with the sliding sleeves.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122538563.4U CN215931212U (en) | 2021-10-21 | 2021-10-21 | Detection tool for gas sealing leakage test of casting parts |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122538563.4U CN215931212U (en) | 2021-10-21 | 2021-10-21 | Detection tool for gas sealing leakage test of casting parts |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113804366A (en) * | 2021-10-21 | 2021-12-17 | 重庆华渝电气集团有限公司 | Gas seal leakage test detection tool for casting parts |
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2021
- 2021-10-21 CN CN202122538563.4U patent/CN215931212U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113804366A (en) * | 2021-10-21 | 2021-12-17 | 重庆华渝电气集团有限公司 | Gas seal leakage test detection tool for casting parts |
| CN113804366B (en) * | 2021-10-21 | 2024-05-28 | 重庆华渝电气集团有限公司 | Gas seal leak test detection tool for casting parts |
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