CN117168692A - Automatic airtight detection equipment - Google Patents
Automatic airtight detection equipment Download PDFInfo
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- CN117168692A CN117168692A CN202311417744.9A CN202311417744A CN117168692A CN 117168692 A CN117168692 A CN 117168692A CN 202311417744 A CN202311417744 A CN 202311417744A CN 117168692 A CN117168692 A CN 117168692A
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- groove
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- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 239000004033 plastic Substances 0.000 claims abstract description 118
- 230000007246 mechanism Effects 0.000 claims abstract description 117
- 239000000758 substrate Substances 0.000 claims abstract description 45
- 230000000903 blocking effect Effects 0.000 claims abstract description 20
- 238000002791 soaking Methods 0.000 claims abstract description 4
- 241001149930 Protura <class> Species 0.000 claims abstract description 3
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 11
- 238000012546 transfer Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 15
- 239000000463 material Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 230000000694 effects Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 210000005056 cell body Anatomy 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The application provides automatic airtight detection equipment, which comprises a frame assembly, a limiting mechanism for blocking and fixing a plastic pipe fitting, a conveying mechanism for driving the limiting mechanism to circularly move and a groove body structure for soaking the plastic pipe fitting, wherein the limiting mechanism is arranged on the frame assembly; the limiting mechanism comprises two mounting substrates, two blocking pieces and two limiting rings, wherein the two mounting substrates are used for being fixed with the conveying mechanism, the two blocking pieces are respectively and fixedly connected with the corresponding mounting substrates, the two limiting rings are respectively and movably connected with the corresponding mounting substrates, the end parts of the blocking pieces are provided with cone heads used for being inserted into the plastic pipe fittings, and one blocking piece is connected with an inflation mechanism used for inflating the plastic pipe fittings; the limiting ring is fixedly connected with an annular seat, the annular seat is movably connected with the mounting substrate through a movable column, and a first spring is arranged between the movable column and the mounting substrate and used for forcing the limiting ring to be propped against the conical head part in a normal state and clamping and fixing the plastic pipe fitting together. Based on this, can adapt to the tip shutoff of not unidimensional plastic pipe fitting to improve the efficiency of gas tightness test operation.
Description
Technical Field
The application relates to the technical field of plastic pipe production, in particular to automatic airtight detection equipment.
Background
In the field of diesel locomotives, plastic pipe fittings have extremely wide application; as is well known, the installation of an engine in an internal combustion locomotive is limited by installation space in all aspects, and pipelines adopted in a fuel system and an air intake system of the engine are required to have stronger plasticity so as to ensure that the pipelines can pass through gaps of various automobile parts, and the characteristics of plastic pipe fittings can just meet the pipeline arrangement requirements of the fuel system and the air intake system of the engine.
The air tightness of the plastic pipe fitting is an important index for measuring the quality of the plastic pipe fitting, and the plastic pipe fitting with unqualified air tightness easily causes leakage of a working medium, so that strict air tightness test is required to be carried out on the plastic pipe fitting before delivery, and whether the plastic pipe fitting has leakage phenomenon is detected.
In the existing detection method, a sealed plug is usually arranged at one end of a plastic pipe fitting, a plug connected with an inflation pipe is arranged at the other end of the plastic pipe fitting, the plastic pipe fitting is inflated and pressurized through the inflation pipe, then the plastic pipe fitting is placed in a water tank, and whether air leakage exists or not is observed so as to detect the air tightness of the plastic pipe fitting. However, because the sizes of the plastic pipe fittings in the internal combustion engine of the automobile are different, the plastic pipe fittings with specific sizes can only be plugged by plugs with specific sizes, so that the use is inconvenient, and the efficiency of the test operation is greatly influenced.
Disclosure of Invention
Based on the above, the application provides automatic airtight detection equipment which can adapt to end plugging of plastic pipe fittings with different sizes so as to improve the efficiency of airtight test operation.
The application provides automatic airtight detection equipment which adopts the following technical scheme:
an automatic airtight detection device comprises a frame assembly, a limiting mechanism for blocking and fixing a plastic pipe fitting, a conveying mechanism for driving the limiting mechanism to circularly move and a groove body structure for soaking the plastic pipe fitting, wherein the groove body structure is arranged below the conveying mechanism, and the conveying mechanism is locally positioned in the groove body structure;
the limiting mechanisms are provided with a plurality of groups, and all the limiting mechanisms are distributed at intervals along the conveying direction of the conveying mechanism; the limiting mechanism comprises two mounting substrates, two blocking pieces and two limiting rings, wherein the two mounting substrates are used for being fixed with the conveying mechanism, the two blocking pieces are respectively and fixedly connected with the corresponding mounting substrates, the two limiting rings are respectively and movably connected with the corresponding mounting substrates, the end parts of the blocking pieces are provided with cone heads used for being inserted into the plastic pipe fittings, and one blocking piece is connected with an inflation mechanism used for inflating the plastic pipe fittings;
the inside of the limiting ring is provided with a hollow cavity matched with the shape of the cone head, the limiting ring is fixedly connected with an annular seat, and the annular seat is movably connected with the mounting substrate through a movable column; a first spring is arranged between the movable column and the mounting substrate and is used for forcing the limiting ring to be propped against the conical head part in a normal state, and the limiting ring and the conical head part clamp and fix the plastic pipe fitting together;
the frame assembly is provided with a feeding station, and the feeding station is provided with a first separating mechanism for forcing the limiting ring to move away from the plastic pipe fitting; the inside positioning mechanism that is equipped with of cell body structure, when stop gear got into the cell body structure, positioning mechanism can make the spacing ring keep supporting tightly in the shutoff piece.
By adopting the technical scheme, the limiting ring can be outwards moved and stopped at a position far away from the plugging piece by the first separating mechanism arranged at the feeding station, so that the plastic pipe fitting is convenient to feed and mount; the end part of the plastic pipe fitting penetrates through the limiting ring and then is sleeved on the conical head part of the plugging piece by an operator, and the end part of the plastic pipe fitting is partially unfolded outwards under extrusion of the conical head part.
Then, drive the plastic pipe fitting through conveying mechanism and remove, the spacing ring that leaves the material loading station can keep supporting tightly in the shutoff piece under positioning mechanism's positioning action, and the cavity of spacing ring can carry out the centre gripping spacing to the plastic pipe fitting jointly with the outer peripheral face of cone head, and can adapt to the tip shutoff of not unidimensional plastic pipe fitting fast to improve the efficiency of gas tightness test operation.
Finally, the plastic pipe fittings plugged at the two ends are inflated through the inflation mechanism, and the conveying mechanism is used for carrying the plastic pipe fittings to be immersed into the internal water body of the tank body structure, so that whether the air leakage condition exists or not can be observed, and whether the tightness of the plastic pipe fittings is good or not can be rapidly judged.
Optionally, a plurality of limiting rings are movably connected with one mounting substrate, the size of each limiting ring is sequentially increased, and all the limiting rings are commonly connected with the annular seat; the annular seat is nested at the peripheral side of the movable column and can slide along the axial direction of the movable column; the clamping assembly is arranged between the annular seat and the movable column, circumferential fixation between the annular seat and the movable column is realized through the clamping assembly, and one of the limiting rings is opposite to the plugging piece.
By adopting the technical scheme, the plastic pipe fitting is matched with the hollow cavity passing through the limiting ring by selecting the limiting rings with different sizes, so that the clamping and fixing of the plastic pipe fitting with different sizes can be quickly adapted, the situation that the plastic pipe fitting is pressed and deformed is improved when the minimum inner diameter of the hollow cavity is smaller than the outer diameter of the plastic pipe fitting, and the plastic pipe fitting can keep good production quality; in addition, each spacing ring is connected in movable column through annular seat jointly, through rotating annular seat and utilizing the fixed subassembly location annular seat of card, can conveniently adjust the spacing ring of adaptation to the position opposite mutually with the shutoff piece, the operation is more convenient.
Optionally, the mounting substrate is provided with through jacks at two sides, the movable column is movably arranged in the jacks in a penetrating manner, and is partially exposed out of the side surface of the mounting substrate far away from the adjacent mounting substrate; the exposed end of the movable column is provided with an extension part, the first spring is arranged on the extension part and the adjacent mounting substrate, and the first spring is used for forcing the extension part to move in a direction away from the adjacent mounting substrate.
Through adopting foretell technical scheme, through setting up movable column and making it movable wears to locate the jack, can realize swing joint between spacing ring and the mounting substrate to produce the elastic force that acts on the extension through first spring, can make spacing ring normality to being close to the direction removal of mounting substrate, finally spacing ring can support tightly in the cone head, thereby carry out the centre gripping to plastic pipe fitting fixedly.
Optionally, the first separating mechanism includes setting up in the first support of frame assembly and connecting in the guide holder of first support, and the guide holder has the arcwall face, and when stop gear got into the material loading station, the extension supported in the arcwall face, forces the spacing ring to move to the direction of keeping away from the shutoff piece gradually.
Through adopting foretell technical scheme, through setting up first support in order fixed guide seat, when conveying mechanism moved to the material loading station with the spacing ring, the extension of the movable column that is connected with this spacing ring can support and paste in the arcwall face to can make movable column and spacing ring remove to the direction of keeping away from the shutoff piece together under the drive of arcwall face, make the spacing ring naturally remove to the position with shutoff piece looks spaced apart, in order to install fast of plastic pipe fitting, improve the efficiency of gas tightness test operation.
Optionally, the positioning mechanism includes setting up in the inside second support of cell body structure and connecting in the frame beam slab of second support, and the frame beam slab is equipped with the constant head tank with extension looks adaptation, and after stop gear left the material loading station, extension part is located the constant head tank.
Through adopting foretell technical scheme, through setting up the second support in order to fix the frame beam board, after the spacing ring leaves the material loading station, the extension of movable column can match and get into in the constant head tank of frame beam board, and then restrict the lateral shifting of movable column for keep between spacing ring and the shutoff piece to paste, can improve the butt intensity between spacing ring and the shutoff piece when carrying out the gas tightness test of plastic pipe fitting, ensure that plastic pipe fitting both ends remain sealed, and then ensure the accuracy of gas tightness test result.
Optionally, the outer peripheral surface of the movable column is provided with an annular clamping groove, and the annular seat is slidably nested in the annular clamping groove;
the clamping assembly comprises a plurality of positioning pins and a second spring, and all the positioning pins are distributed at intervals around the central axis of the annular seat; the inner end wall of the annular clamping groove is provided with a positioning hole which is in plug-in fit with the positioning pin;
the second spring is arranged between the annular seat and the movable column, and when the positioning pin and the positioning hole are mutually aligned, the second spring forces the positioning pin to be matched and inserted into the positioning hole.
Through adopting foretell technical scheme, through setting up the elastic force that makes it produce the annular seat all the time that acts on through setting up the second spring, can force the locating pin to match when the locating pin of annular seat is just to the locating hole of annular draw-in groove and insert in the locating hole, restrict the relative rotation between annular seat and the movable column. When the used limiting ring needs to be changed, the limiting ring is forced to move towards the direction close to the second spring, so that the positioning pin can be smoothly separated from the positioning hole, then the annular seat is rotated, the other positioning pin is moved to a position opposite to the positioning hole, the positioning pin can be automatically inserted into the positioning hole under the action of the elasticity of the second spring, and at the moment, the other limiting ring automatically stays at the position opposite to the conical head, so that the operation is convenient and quick.
Optionally, an elastic rubber pad is adhered to the inner peripheral wall of the hollow cavity.
Through adopting foretell technical scheme, through the elasticity cushion that sets up, can further improve the suitability between spacing ring and the shutoff piece to when spacing ring and the common centre gripping fixed plastic pipe fitting of shutoff piece, can improve the sealed effect of plastic pipe fitting tip, because reduce the condition that gas revealed from plastic pipe fitting tip when inflation mechanism aerifys, ensure the accuracy of gas tightness test.
Optionally, the frame assembly is provided with a blanking station, and the blanking station is provided with a second separating mechanism for forcing the limiting ring to move away from the plastic pipe fitting, a discharging mechanism for separating the plastic pipe fitting from the limiting mechanism and a collecting chamber for collecting the plastic pipe fitting; wherein,
the discharging mechanism comprises a third bracket, a double-head cylinder and a finger clamping cylinder, wherein the third bracket is fixed on the frame assembly; the two clamping finger cylinders are respectively fixed at two output ends of the double-head cylinder and used for respectively clamping and fixing two ends of the plastic pipe fitting.
Through adopting foretell technical scheme, when conveying mechanism drives the spacing ring and removes to the unloading station, can make the spacing ring outwards remove and stay in the position of keeping away from the shutoff piece through the second separating mechanism that sets up, then indicate the cylinder through two and carry out the centre gripping to the both ends of plastic pipe fitting, the both ends of plastic pipe fitting are close to each other when the action of resetting of rethread double-end cylinder, can make plastic pipe fitting break away from shutoff piece and spacing ring voluntarily to deposit in the collecting chamber with plastic pipe fitting, accomplish the automatic discharge operation of plastic pipe fitting.
Optionally, the unloading mechanism further comprises a transferring assembly for transferring the plastic pipe fitting to the collecting chamber, and the transferring assembly comprises a swing arm, a connecting rod and a pushing component; the third bracket is provided with an arc-shaped groove, the connecting rod penetrates through the arc-shaped groove and is movably arranged in the arc-shaped groove, and the double-head air cylinder is fixedly arranged on the connecting rod; one end of the swing arm is hinged to the third bracket, and the other end of the swing arm is connected to the connecting rod; the pushing component is fixed on the third bracket, and the movable end of the pushing component is connected with the swing arm and used for driving the swing arm to rotate.
Through adopting foretell technical scheme, through setting up movable mounting in the connecting rod of arc wall, wait to press from both sides and indicate that cylinder centre gripping fixed plastic pipe fitting, double-end cylinder reset after, pass the part action with promoting the swing arm through the control and outwards swing, the swing arm drives the connecting rod and removes along the arc wall, can be located the collection room top after connecting rod and double-end cylinder leave the material loading station, makes again and press from both sides and indicate that the cylinder resets in order to loosen the plastic pipe fitting, can make the plastic pipe fitting fall in the collection room, and then conveniently collect the plastic pipe fitting.
Optionally, a fixedly arranged connecting bracket is arranged on the outer side of the conveying mechanism, the connecting bracket is provided with a construction groove matched with the conveying path of the conveying mechanism, and a plurality of valve body parts are movably arranged in the construction groove;
the inflation mechanism comprises a pneumatic pump, inflation pipes and connecting pipes, a plurality of inflation pipes are arranged, each inflation pipe is correspondingly connected with each valve body part, and one end of each inflation pipe far away from each valve body part is commonly connected with an air outlet port of the pneumatic pump;
the connecting pipe is equipped with a plurality of, and each connecting pipe corresponds respectively and is connected in each valve body part, and the one end that each connecting pipe kept away from the valve body part all corresponds with the shutoff piece and is connected.
Through adopting the technical scheme, through the connecting pipe, the valve body part and the inflation pipe which are sequentially arranged, the air flow communication between the plugging piece and the pneumatic pump can be realized, and the pneumatic pump can smoothly supply air to the plugging piece; in addition, through sliding the valve body part that sets up in the construction groove, the valve body part passes through the connecting pipe and connects behind the shutoff piece, can make the valve body part remove thereupon when conveying mechanism drives stop gear and remove to wait that stop gear removes to the unloading station after, switch the valve body part from the open state to the closed state, can cut off the air feed of pump to the shutoff piece of corresponding connection, and ensure that each connecting pipe that is located between material loading station and the unloading station keeps ventilation state, so that observe whether the plastic pipe fitting has the gas leakage phenomenon.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through setting up the shutoff piece that is fixed in the mounting base plate and swing joint in the spacing collar of mounting base plate, the cavity of spacing collar and the outer peripheral face of cone head can carry out centre gripping spacing to the plastic pipe fitting jointly, and can adapt to the tip shutoff of different size plastic pipe fittings fast to improve the efficiency of gas tightness test operation;
2. the plastic pipe fitting is adapted to pass through the hollow cavity of the limiting ring by selecting the limiting rings with different sizes, so that the clamping and fixing of the plastic pipe fitting with different sizes can be quickly adapted, the plastic pipe fitting is used for improving the condition of the compression deformation of the plastic pipe fitting when the minimum inner diameter of the hollow cavity is smaller than the outer diameter of the plastic pipe fitting, and the plastic pipe fitting can keep good production quality;
3. through setting up the frame beam slab that has the constant head tank, after the spacing ring left the material loading station, the extension of movable column can match and get into in the constant head tank of frame beam slab to improve the butt intensity between spacing ring and the shutoff piece when carrying out the gas tightness test of plastic pipe fitting, ensure that plastic pipe fitting both ends remain sealed, and then ensure the accuracy of gas tightness test result.
Drawings
FIG. 1 is a schematic view of the overall structure of the present embodiment;
fig. 2 is a schematic structural view of the conveying mechanism in the present embodiment;
FIG. 3 is a schematic view of the limiting mechanism in the present embodiment;
FIG. 4 is a partial cross-sectional view of the annular seat of the present embodiment, mainly illustrating the connection relationship between the annular seat and the movable post;
FIG. 5 is a partial view of the overall structure of the present embodiment, mainly embodying the specific structure of the inflation mechanism;
FIG. 6 is a partial view of the overall structure of the present embodiment, mainly embodying the structure of the first separating mechanism and the limiting mechanism;
fig. 7 is a schematic structural view of the first separating mechanism in the present embodiment;
fig. 8 is an enlarged view at a in fig. 1.
Reference numerals illustrate: 1. a frame assembly; 11. a feeding station; 12. a blanking station; 13. a collection chamber; 2. a limiting mechanism; 21. a mounting substrate; 211. a jack; 22. a blocking member; 221. a cone head; 23. a limiting ring; 231. a hollow chamber; 232. an elastic rubber pad; 24. an annular seat; 25. a movable column; 251. an extension; 252. an annular clamping groove; 253. positioning holes; 26. a first spring; 27. a clamping assembly; 271. a positioning pin; 272. a second spring; 273. an annular top plate;
3. a conveying mechanism; 31. a mounting bracket; 32. a chain belt; 33. a sprocket; 34. a driving motor; 4. a tank structure; 5. an inflation mechanism; 51. an inflation tube; 52. a connecting pipe; 53. a connecting bracket; 531. constructing a groove; 54. a valve body member; 6. a positioning mechanism; 61. a second bracket; 62. a frame beam plate; 621. a positioning groove;
7. a first separation mechanism; 71. a first bracket; 72. a guide seat; 721. an arc surface; 8. a second separation mechanism; 9. a discharging mechanism; 91. a third bracket; 911. an arc-shaped groove; 92. a double-headed cylinder; 93. a finger clamping cylinder; 94. swing arms; 95. a connecting rod; 96. a pushing part.
Detailed Description
The application is described in further detail below with reference to fig. 1-8.
The embodiment of the application discloses automatic airtight detection equipment.
Referring to fig. 1, an automatic airtight detection apparatus includes a frame assembly 1, a limiting mechanism 2 for blocking and fixing a plastic pipe, a conveying mechanism 3 for driving the limiting mechanism 2 to move circularly, and a tank structure 4 for soaking the plastic pipe; the tank body structure 4 is a water storage tank arranged on the surface of the frame assembly 1, and a water injection pipeline for water injection and a drainage pipeline (not shown in the figure) for drainage are arranged on the inner side surface of the tank body structure 4.
The conveying mechanism 3 comprises two groups of chain transmission assemblies which are symmetrically arranged at the outer side of the frame assembly 1; referring to fig. 2, wherein the chain transmission assembly includes a mounting bracket 31, a chain belt 32 and a sprocket 33, the mounting bracket 31 is fixed to the top of the frame assembly 1; the number of the chain wheels 33 is multiple, each chain wheel 33 is rotatably mounted on the mounting bracket 31, and one chain wheel 33 is connected with a driving motor 34 for rotating the chain wheel, wherein the driving motor 34 is higher than the tank body structure 4 after being mounted, so that the situation that the driving motor 34 is immersed in water for a long time is avoided; the chain belt 32 is sleeved on the outer peripheral sides of all the chain wheels 33, and the chain belt 32 is partially positioned inside the groove body structure 4, so that the chain belt 32 can partially enter water when the driving motor 34 drives the chain belt 32 to rotate.
The number of the limiting mechanisms 2 is provided with a plurality of groups, and all the limiting mechanisms 2 are arranged at intervals along the conveying direction of the chain belt 32; referring specifically to fig. 3, the limiting mechanism 2 includes two mounting substrates 21, two blocking members 22, and a plurality of limiting rings 23, where the two mounting substrates 21 are respectively fixed on opposite sides of the two chain belts 32; the two plugging pieces 22 are respectively and fixedly connected to the mounting base plates 21, the end parts of the plugging pieces 22 far away from the adjacent mounting base plates 21 are provided with integrally formed conical head parts 221, the outer diameter size of the conical head parts 221 is gradually reduced from one end of the conical head parts 221 close to the plugging pieces 22 to the other end, and the plugging pieces can be adaptively inserted into plastic pipe fittings with different sizes.
All the limiting rings 23 are equally divided into two groups, and the two groups of limiting rings 23 are respectively and movably connected with the two mounting substrates 21; specifically, in this embodiment, the number of the group of limiting rings 23 is three, all the limiting rings 23 are commonly connected with the annular seat 24, and all the limiting rings 23 are equidistantly arranged around the central axis of the annular seat 24; and, the size of each stopper ring 23 increases in order clockwise or counterclockwise. It should be noted that in other embodiments, the number of the limiting rings 23 may be four or five, which is not limited to the number shown in the present embodiment.
The shape of the limiting rings 23 is matched with that of the cone head 221, and hollow cavities 231 matched with the shape of the cone head 221 are formed in the limiting rings 23, so that each limiting ring 23 can be matched and abutted against the peripheral surface of the cone head 221, and further the plastic pipe fittings are clamped and fixed together; in addition, the inner peripheral wall of the hollow cavity 231 of the limiting ring 23 is also adhered with an elastic rubber pad 232, and the elastic rubber pad 232 is made of rubber or silica gel materials, so that the sealing effect of the end part of the plastic pipe fitting can be improved when the plastic pipe fitting is clamped and fixed, and the possibility of leakage of gas from the end part of the plastic pipe fitting is reduced.
The movable connection mode of the limiting ring 23 and the mounting substrate 21 is specifically as follows: the side of the mounting substrate 21 is provided with a through jack 211, the jack 211 is square in shape, a movable column 25 is inserted in the jack 211 in a matching manner, and the movable column 25 can axially move in the jack 211. One end of the movable column 25 is normally penetrated in the insertion hole 211 and exposed out of the side surface of the mounting substrate 21 far away from the adjacent mounting substrate 21, and the exposed end of the movable column 25 is provided with an integrally formed extension part 251, and the outer diameter of the extension part 251 is larger than that of the movable column 25, so that the condition that the movable column 25 is directly separated from the insertion hole 211 can be restricted.
Referring to fig. 4, it should be noted that the cross-section of the movable pillar 25 near the end of the extension portion 251 is rectangular, the cross-section of the movable pillar 25 far from the end of the extension portion 251 is circular, and the outer peripheral surface is provided with an annular clamping groove 252; the annular seat 24 is nested inside the annular clamping groove 252 and can slide in the annular clamping groove 252 along the axial direction of the movable column 25, so that the movable column 25, the annular seat 24 and the three limiting rings 23 can form a movable whole together.
A first spring 26 is arranged between the movable column 25 and the mounting substrate 21, and the first spring 26 is sleeved on the movable column 25; one end of the first spring 26 abuts against the extension part 251, and the other end abuts against the side surface of the mounting substrate 21 away from the adjacent mounting substrate 21; the first spring 26 can always generate elastic force acting on the extension portion 251, so that the extension portion 251 moves in a direction away from the adjacent mounting substrate 21, and finally the movable column 25, the annular seat 24 and the three limiting rings 23 can be driven to move in a direction close to the plugging piece 22 together, so that one of the limiting rings 23 is matched and abutted against the peripheral surface of the plugging piece 22, and clamping and fixing of the plastic pipe fitting are realized.
In addition, a clamping assembly 27 is arranged between the annular seat 24 and the movable column 25, and circumferential fixation between the annular seat 24 and the movable column 25 can be realized through the clamping assembly 27, so that one of the limiting rings 23 is opposite to the plugging piece 22; specifically, the clamping assembly 27 includes a plurality of positioning pins 271 and second springs 272, the number of the positioning pins 271 is equal to the number of the limiting rings 23 in this embodiment, the positioning pins 271 are fixed on the side surface of the annular seat 24, and all the positioning pins 271 are equidistantly arranged around the central axis of the annular seat 24; the inner end wall of the annular clamping groove 252 far away from the extension part 251 is provided with a plurality of positioning holes 253, all the positioning holes 253 are distributed at equal intervals around the central axis of the movable column 25, and each positioning pin 271 is correspondingly inserted into each positioning hole 253, so that the annular seat 24 can be limited to rotate randomly.
The second spring 272 is sleeved on the movable column 25, one end of the second spring 272 is connected with the inner end wall of the annular clamping groove 252, which is close to the extension part 251, the other end of the second spring 272 is connected with an annular top plate 273, and the annular top plate 273 is abutted against the annular seat 24; the second spring 272 can always generate elastic force acting on the annular seat 24 and force the annular seat 24 to move away from the mounting substrate 21, so that each positioning pin 271 is correspondingly inserted into each positioning hole 253, and one of the limiting rings 23 can be opposite to the plugging piece 22.
When the limiting rings 23 with other sizes are required to be replaced to clamp and fix the plastic pipe fitting, the operator forces the annular seat 24 to move towards the direction close to the adjacent mounting substrate 21, and presses the second springs 272, so that the positioning pins 271 can be smoothly separated from the positioning holes 253; then the annular seat 24 is rotated to enable the other limiting ring 23 to be opposite to the plugging piece 22, the external force is removed, and the annular seat 24 can enable the positioning pin 271 to be automatically clamped into the positioning hole 253 again under the elastic force of the second spring 272, so that the switching of the limiting ring 23 can be conveniently completed.
Returning to fig. 4, one of the blocking pieces 22 in each limiting mechanism 2 is provided with a cavity, and the cavity penetrates through the conical head 221 of the blocking piece 22; all the plugging pieces 22 connected to the same chain belt 32 are commonly connected with an inflation mechanism 5, and the inside of the plastic pipe fitting can be inflated through the inflation mechanism 5 so as to observe whether air leakage exists.
Referring to fig. 5, a connecting bracket 53 is provided outside the mounting bracket 31, the connecting bracket 53 is fixed to the inner wall of the tank structure 4, the connecting bracket 53 is provided with a structure groove 531 identical to the conveying path of the chain belt 32, a plurality of valve body parts 54 are movably mounted in the structure groove 531, the number of the valve body parts 54 is equal to the number of the limiting mechanisms 2, and each valve body part 54 can freely move in the structure groove 531. The valve body part 54 in this embodiment selects an automatic exhaust valve, and can automatically control the opening and closing of the valve body part 54 through a PLC program, and a water touch sensor is further arranged at the bottom of the valve body part 54, so that when the valve body part 54 enters water, a state change occurs, and a control signal is further generated to a PCL controller to control the opening and closing of the valve body part 54.
Referring also to fig. 4, the inflation mechanism 5 includes a pneumatic pump, an inflation tube 51, and a connection tube 52; wherein, the connecting pipes 52 are hard metal pipes, the number of the connecting pipes 52 is equal to the number of the valve body parts 54, each connecting pipe 52 is correspondingly connected to each valve body part 54, and one end of each connecting pipe 52 far away from the valve body part 54 is correspondingly connected with the plugging piece 22. The number of the air charging pipes 51 is also equal to the number of the valve body parts 54, each air charging pipe 51 is correspondingly connected to each valve body part 54, and one end of each air charging pipe 51 far away from the valve body part 54 is commonly connected to an air outlet port (not shown in the figure) of the pneumatic pump. When the air tightness is detected, the pneumatic pump is controlled to act to inflate each inflation tube 51, and the valve body parts 54 moving to the lower section of the structural groove 531 are opened under the control of the PLC program, so that the plastic pipe immersed in water can be inflated smoothly, and whether air leakage exists or not can be detected.
In addition, referring to fig. 6, a positioning mechanism 6 is arranged inside the groove body structure 4, and the positioning mechanism 6 can play a role in positioning the limiting ring 23 when the limiting mechanism 2 enters the groove body structure 4; the positioning mechanism 6 comprises a second bracket 61 fixed on the inner bottom wall of the groove body structure 4 and a frame beam plate 62 connected above the second bracket 61, wherein a positioning groove 621 is arranged at the top of the frame beam plate 62, and the extending direction of the positioning groove 621 is the same as the conveying direction of the chain belt 32. Referring to fig. 4, when the limiting mechanism 2 is driven by the chain belt 32 to enter the bottom of the groove body structure 4, the extending portion 251 can be matched and enter the positioning groove 621, so as to limit the lateral movement of the movable column 25, so that the limiting ring 23 is kept against the plugging piece 22, and the two ends of the plastic pipe fitting can be kept sealed when the air tightness test is performed.
Returning to fig. 1, the frame assembly 1 is provided with a feeding station 11 and a discharging station 12 for respectively carrying out mounting feeding and dismantling discharging of plastic pipe fittings; the feeding station 11 is provided with a first separating mechanism 7 for forcing the limiting ring 23 to move away from the plastic pipe fitting, and the discharging station 12 is provided with a second separating mechanism 8 for forcing the limiting ring 23 to move away from the plastic pipe fitting; it should be noted that, the specific structures of the first separating mechanism 7 and the second separating mechanism 8 are the same, and the embodiment uses the first separating mechanism 7 as an example for explanation, and the second separating mechanism 8 is not described in detail.
Returning to fig. 6, the first separating mechanism 7 includes a first bracket 71 disposed on the frame assembly 1 and a guide seat 72 fixedly connected to the first bracket 71, where the first bracket 71 in the embodiment is fixedly connected to the conveying frame and is located at an upper portion of the conveying frame; referring to fig. 7, the side surface of the guide seat 72 away from the conveyor frame is provided with an arc surface 721, and when the chain belt 32 moves with the limiting mechanism 2 to enable the limiting mechanism 2 to enter the feeding station 11, the extending portion 251 can abut against the arc surface 721, compress the first spring 26 and move inwards, so that the limiting ring 23 is forced to gradually move towards a direction away from the plugging piece 22; finally, the limiting ring 23 can be separated from the plugging piece 22, so that an operator can conveniently pass the plastic pipe fitting through the limiting ring 23 and sleeve the plastic pipe fitting on the plugging piece 22; then, the chain belt 32 moves along with the limiting mechanism 2 and leaves the space between the feeding stations 11, the extension part 251 leaves the arc surface 721, and the elastic force of the first spring 26 can force the extension part 251 and the movable column 25 to reset, so that the limiting ring 23 is abutted against the plugging piece 22 again.
Returning to fig. 1, the blanking station 12 is further provided with a discharging mechanism 9 for disengaging the plastic parts from the limiting mechanism 2 and a collecting chamber 13 for collecting the plastic parts. Referring to fig. 8, the discharging mechanism 9 includes a third bracket 91, a double-headed cylinder 92, a finger clamping cylinder 93 and a transferring assembly, and the third bracket 91 is provided with two and is commonly fixed on the top surface of the frame assembly 1; the two groups of transfer assemblies are respectively arranged on the two third brackets 91; the transfer assembly comprises a swing arm 94, a connecting rod 95 and a pushing component 96, the third bracket 91 is provided with an arc groove 911, and the connecting rod 95 penetrates through the arc groove 911 and can freely slide in the arc groove 911; the two connecting rods 95 respectively arranged on the two groups of transfer assemblies are connected and fixed with each other.
One end of the swing arm 94 is hinged to the third bracket 91, and the hinge point of the swing arm 94 and the third bracket 91 is overlapped with the arc axis of the arc groove 911; the other end of the swing arm 94 is fixedly connected to a connecting rod 95; the connecting rod 95 can be driven to move by controlling the swing arm 94 to rotate. The pushing component 96 is a linear driving component such as an air cylinder or a hydraulic cylinder, the cylinder body of the pushing component 96 is fixed on the third bracket 91, and the movable end of the pushing component 96 is movably sleeved on the swing arm 94; the swinging arm 94 can be smoothly driven to rotate by controlling the pushing part 96 to extend outwards or retract inwards, so that the connecting rod 95 is forced to move along the arc-shaped groove 911.
The double-headed cylinder 92 is fixed to two connecting rods 95, two clamping finger cylinders 93 are provided, and the two clamping finger cylinders 93 are respectively fixed to two movable ends of the double-headed cylinder 92; in this embodiment, the double-headed cylinder 92 and the finger clamping cylinder 93 are both in a normal open state, and when the chain belt 32 moves to the blanking station 12 with the limiting mechanism 2, the plastic pipe fitting clamped and fixed on the limiting mechanism 2 can automatically enter between two clamping fingers of the finger clamping cylinder 93, and the limiting ring 23 can automatically separate from the plugging piece 22 through the second separating mechanism 8.
Then, the finger clamping cylinder 93 is controlled to act, so that the finger clamping cylinder 93 can clamp and fix the plastic pipe fitting, and then the double-head cylinder 92 is controlled to act, so that two ends of the plastic pipe fitting can be automatically forced to separate from the plugging piece 22. Finally, the pushing part 96 is controlled to act so as to drive the connecting rod 95 to move in the arc groove 911, the plastic pipe fitting can be carried to move above the collecting chamber 13, the clamping finger cylinder 93 is controlled to reset, the clamping finger cylinder 93 loosens the plastic pipe fitting, the plastic pipe fitting can automatically fall in the collecting chamber 13, and the discharging and collecting operation of the plastic pipe fitting can be automatically completed.
The implementation principle of the automatic airtight detection equipment provided by the embodiment of the application is as follows:
when the air tightness test is required to be carried out on the plastic pipe fitting, the limiting mechanism 2 staying at the feeding station 11 is driven by the guide seat 72, so that the limiting ring 23 and the plugging piece 22 are kept mutually separated, at the moment, an operator selects the proper limiting ring 23, after the end part of the plastic pipe fitting passes through the limiting ring 23, the plastic pipe fitting is sleeved on the conical head 221 of the plugging piece 22, and the end part of the plastic pipe fitting can be partially unfolded outwards under the extrusion of the conical head 221. Then, conveying mechanism 3 drives the plastic pipe fitting and removes, and spacing ring 23 that leaves material loading station 11 resets under the elasticity effect of first spring 26 and supports tightly in shutoff piece 22 to can keep supporting tightly in shutoff piece 22 under the positioning mechanism 6's positioning action, spacing ring 23 and cone head 221 can carry out the centre gripping spacing to the plastic pipe fitting jointly, and can adapt to the tip shutoff of not unidimensional plastic pipe fitting fast, in order to improve the efficiency of gas tightness test operation.
The above is a preferred embodiment of the present application, and is not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (10)
1. An automatic airtight detection apparatus, characterized in that: the device comprises a frame assembly (1), a limiting mechanism (2) for blocking and fixing plastic pipe fittings, a conveying mechanism (3) for driving the limiting mechanism (2) to move circularly and a groove body structure (4) for soaking the plastic pipe fittings, wherein the groove body structure (4) is arranged below the conveying mechanism (3), and the conveying mechanism (3) is partially positioned in the groove body structure (4);
the limiting mechanisms (2) are provided with a plurality of groups, and all the limiting mechanisms (2) are distributed at intervals along the conveying direction of the conveying mechanism (3); the limiting mechanism (2) comprises two mounting substrates (21) used for being fixed with the conveying mechanism (3), two blocking pieces (22) fixedly connected with the corresponding mounting substrates (21) respectively, and two limiting rings (23) movably connected with the corresponding mounting substrates (21) respectively, wherein cone heads (221) used for being inserted into plastic pipe fittings are arranged at the end parts of the blocking pieces (22), and one blocking piece (22) is connected with an inflation mechanism (5) used for inflating the plastic pipe fittings;
the limiting ring (23) is internally provided with a hollow cavity (231) which is matched with the shape of the conical head part (221), the limiting ring (23) is fixedly connected with an annular seat (24), and the annular seat (24) is movably connected with the mounting substrate (21) through a movable column (25); a first spring (26) is arranged between the movable column (25) and the mounting substrate (21), and the first spring (26) is used for forcing the limiting ring (23) to be abutted against the conical head part (221) normally and enabling the limiting ring (23) and the conical head part (221) to clamp and fix the plastic pipe fitting together;
the frame assembly (1) is provided with a feeding station (11), and the feeding station (11) is provided with a first separating mechanism (7) for forcing the limiting ring (23) to move away from the plastic pipe fitting; the groove body structure (4) is internally provided with a positioning mechanism (6), and when the limiting mechanism (2) enters the groove body structure (4), the positioning mechanism (6) can enable the limiting ring (23) to be kept against the plugging piece (22).
2. The automatic air tightness detection device according to claim 1, wherein: a plurality of limiting rings (23) are movably connected with one mounting substrate (21), the size of each limiting ring (23) is sequentially increased, and all the limiting rings (23) are commonly connected with an annular seat (24); the annular seat (24) is nested on the outer peripheral side of the movable column (25) and can axially slide along the movable column (25); a clamping assembly (27) is arranged between the annular seat (24) and the movable column (25), circumferential fixation between the annular seat (24) and the movable column (25) is realized through the clamping assembly (27), and one of the limiting rings (23) is opposite to the plugging piece (22).
3. The automatic air tightness detection device according to claim 2, wherein: the mounting substrate (21) is provided with through jacks (211) at two sides, and the movable columns (25) are movably arranged in the jacks (211) in a penetrating mode and are partially exposed out of the side surface, far away from the adjacent mounting substrate (21), of the mounting substrate (21); the exposed end of the movable column (25) is provided with an extension part (251), the first spring (26) is arranged on the extension part (251) and the adjacent mounting substrate (21), and the first spring (26) is used for forcing the extension part (251) to move in a direction away from the adjacent mounting substrate (21).
4. An automatic airtight detection apparatus according to claim 3, wherein: the first separating mechanism (7) comprises a first support (71) arranged on the frame assembly (1) and a guide seat (72) connected to the first support (71), the guide seat (72) is provided with an arc-shaped surface (721), and when the limiting mechanism (2) enters the feeding station (11), the extending part (251) abuts against the arc-shaped surface (721) to force the limiting ring (23) to gradually move towards a direction away from the blocking piece (22).
5. An automatic airtight detection apparatus according to claim 3, wherein: the positioning mechanism (6) comprises a second support (61) arranged inside the groove body structure (4) and a frame beam plate (62) connected to the second support (61), wherein the frame beam plate (62) is provided with a positioning groove (621) matched with the extending part (251), and after the limiting mechanism (2) leaves the feeding station (11), the extending part (251) is locally positioned in the positioning groove (621).
6. The automatic air tightness detection device according to claim 2, wherein: the outer peripheral surface of the movable column (25) is provided with an annular clamping groove (252), and the annular seat (24) is slidably nested in the annular clamping groove (252);
the clamping assembly (27) comprises positioning pins (271) and second springs (272), a plurality of positioning pins (271) are arranged, and all the positioning pins (271) are distributed at intervals around the central axis of the annular seat (24); a positioning hole (253) which is in plug-in fit with the positioning pin (271) is formed in the inner end wall of the annular clamping groove (252);
the second spring (272) is arranged between the annular seat (24) and the movable column (25), and when the positioning pin (271) and the positioning hole (253) are mutually aligned, the second spring (272) forces the positioning pin (271) to be matched and inserted into the positioning hole (253).
7. The automatic air tightness detection device according to claim 2, wherein: an elastic rubber pad (232) is adhered to the inner peripheral wall of the hollow cavity (231).
8. The automatic air tightness detection device according to claim 1, wherein: the frame assembly (1) is provided with a blanking station (12), and the blanking station (12) is provided with a second separating mechanism (8) for forcing the limiting ring (23) to move away from the plastic pipe fitting, a discharging mechanism (9) for separating the plastic pipe fitting from the limiting mechanism (2) and a collecting chamber (13) for collecting the plastic pipe fitting; wherein,
the discharging mechanism (9) comprises a third bracket (91), a double-head air cylinder (92) and a finger clamping air cylinder (93), wherein the third bracket (91) is fixed on the frame assembly (1), and the double-head air cylinder (92) is arranged on the third bracket (91); the two clamping finger cylinders (93) are arranged, and the two clamping finger cylinders (93) are respectively fixed at two output ends of the double-head cylinder (92) and are used for respectively clamping and fixing two ends of the plastic pipe fitting.
9. The automatic air tightness detection device according to claim 8, wherein: the unloading mechanism (9) further comprises a transfer assembly for transferring the plastic pipe fitting to the collecting chamber (13), wherein the transfer assembly comprises a swing arm (94), a connecting rod (95) and a pushing component (96); the third bracket (91) is provided with an arc groove (911), the connecting rod (95) penetrates through the arc groove (911) and is movably arranged in the arc groove (911), and the double-head air cylinder (92) is fixedly arranged on the connecting rod (95); one end of the swing arm (94) is hinged to the third bracket (91), and the other end of the swing arm (94) is connected to the connecting rod (95); the pushing component (96) is fixed on the third bracket (91), and the movable end of the pushing component (96) is connected with the swing arm (94) and used for driving the swing arm (94) to rotate.
10. The automatic air tightness detection device according to claim 1, wherein: the outer side of the conveying mechanism (3) is provided with a fixedly arranged connecting bracket (53), the connecting bracket (53) is provided with a structural groove (531) which is matched with the conveying path of the conveying mechanism (3), and a plurality of valve body parts (54) are movably arranged in the structural groove (531);
the inflation mechanism (5) comprises a pneumatic pump, inflation pipes (51) and connecting pipes (52), a plurality of inflation pipes (51) are arranged, each inflation pipe (51) is correspondingly connected to each valve body part (54), and one end, far away from each valve body part (54), of each inflation pipe (51) is commonly connected to an air outlet port of the pneumatic pump;
the connecting pipes (52) are provided with a plurality of connecting pipes, each connecting pipe (52) is correspondingly connected to each valve body part (54), and one end, far away from the valve body part (54), of each connecting pipe (52) is correspondingly connected with the plugging piece (22).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311417744.9A CN117168692B (en) | 2023-10-30 | 2023-10-30 | Automatic airtight detection equipment |
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| CN202311417744.9A CN117168692B (en) | 2023-10-30 | 2023-10-30 | Automatic airtight detection equipment |
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