CN113714364A - Quick connector and crimping tool and assembly process thereof - Google Patents
Quick connector and crimping tool and assembly process thereof Download PDFInfo
- Publication number
- CN113714364A CN113714364A CN202110943419.0A CN202110943419A CN113714364A CN 113714364 A CN113714364 A CN 113714364A CN 202110943419 A CN202110943419 A CN 202110943419A CN 113714364 A CN113714364 A CN 113714364A
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- quick connector
- cavity
- pressing
- hemming
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- 238000002788 crimping Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000008569 process Effects 0.000 title claims abstract description 24
- 238000009957 hemming Methods 0.000 claims abstract description 45
- 238000003825 pressing Methods 0.000 claims abstract description 45
- 239000004677 Nylon Substances 0.000 claims abstract description 13
- 229920001778 nylon Polymers 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000001125 extrusion Methods 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 4
- 238000005728 strengthening Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 4
- 238000010168 coupling process Methods 0.000 claims 4
- 238000005859 coupling reaction Methods 0.000 claims 4
- 239000010720 hydraulic oil Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004826 seaming Methods 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/12—Edge-curling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
- B29C65/64—Joining a non-plastics element to a plastics element, e.g. by force
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/091—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a quick connector and a crimping tool and an assembling process thereof. The key points of the technical scheme are as follows: a quick connector comprises a base and a fixing piece, wherein the fixing piece is fixed in the inner wall of the base in a curling mode, an inner inserting tube, a sealing ring, a gasket and a buckle are assembled in the base from bottom to top, and a gap for inserting a nylon tube is reserved between the inner inserting tube and the buckle; a hemming tool comprises a hemming part and a lower pressing part, wherein a hemming cavity is arranged in the hemming part, and the bottom of the hemming cavity is internally shrunk to form an arc surface for hemming the edge of a quick connector inwards; the assembling process of the quick connector comprises the steps of assembling the quick connector and curling, wherein the assembling step is to assemble all parts and a fixing piece in a base, and the curling is to curl an opening of the base through the curling tool.
Description
Technical Field
The invention relates to the field of a quick connector assembling process, in particular to a quick connector, a crimping tool and an assembling process thereof.
Background
The quick connector is a convenient plug-and-play connection mode, is widely used for connecting nylon pipelines on automobiles, such as pipelines in fuel systems and vacuum power-assisted systems, can be used for completing the connection and disconnection of the pipelines by hands under the condition of not using tools, and is suitable for the pipeline connection of gas, liquid, gas-liquid sharing, oil pressure and the like.
The existing quick connector comprises a plurality of parts which are fixed inside a quick connector shell through fixing pieces, and because a gasket made of plastic or rubber exists inside the quick connector and cannot resist high temperature, the fixing pieces cannot be fixed on the shell in a welding mode, and the fixing pieces are usually fixed on the shell in a crimping mode. At present, the hemming process is completed by a hemming machine, and the working principle of the hemming machine is that the upper edge and the lower edge of a workpiece are extruded and deformed through high-speed rotation of the workpiece to form the hemming effect. However, the adjustment of the roller and the central cam for hemming of the existing hemming machine is complex, the running speed of the roller is also high, and the problems of incomplete hemming (sliding opening), edge collapse, excessive hemming, wrinkle of the seaming surface and the like are easy to occur.
Therefore, how to simplify the assembling process of the quick connector, ensure a better crimping effect and improve the crimping speed becomes a problem to be solved in the field of the assembling process of the quick connector.
Disclosure of Invention
The invention aims to provide a quick connector and a crimping tool and an assembling process thereof.
In order to realize the purpose of the invention, the invention adopts the following technical scheme:
the utility model provides a hemming frock, includes crimping portion and holding-down portion, the inside cavity of crimping portion forms the hemming chamber that is used for quick connector to get into, the hemming chamber is cylindrical, and the bottom adduction of hemming chamber forms the cambered surface that is used for making quick connector edge inside hem, cambered surface and the smooth transition of inner wall in hemming chamber.
Preferably, the quick connector comprises a base for fixing the quick connector, and a limit groove for embedding the quick connector is formed in the base; the lower pressing portion is cylindrical, and the axis of the lower pressing portion, the axis of the crimping cavity and the axis of the limiting groove are located on the same straight line.
Preferably, the pressing part is provided with a hydraulic device, the pressing part is rotationally connected with a piston rod of the hydraulic oil cylinder, the base is provided with a supporting table for supporting the pressing part and limiting the movement direction of the pressing part, a channel through which the pressing part passes is reserved in the middle of the supporting table, the supporting table limits the curling part and the pressing part to move only in the vertical direction, and a spiral track for enabling the pressing part to rotate when the pressing part descends is arranged in the channel.
Compared with the prior art, the hemming tool adopting the technical scheme has the following beneficial effects:
one, compare in current beading machine, adopt above-mentioned technical scheme's turn-up frock structure simpler, it is also more convenient to use, is favorable to reduction in production cost for turn-up speed reduces operating personnel's the work degree of difficulty.
According to the crimping tool adopting the technical scheme, the pressure is applied to the edge of the shell of the quick connector from the periphery through the arc surface in the crimping cavity, the stress on the edge of the shell is uniform, the problems that the crimping is excessive at certain positions of the edge of the shell and the crimping is insufficient at certain positions are avoided, and the crimping cover is not prone to forming wrinkles.
Thirdly, the crimping tool adopting the technical scheme fixes the quick connector through the base, enables the quick connector to keep a vertical upward direction, and limits the downward pressing part to move in the vertical direction through the supporting table, so that when subsequent crimping actions are carried out, the axis of the crimping cavity and the quick connector can be ensured to be positioned on the same straight line, and the problems of tilting of the crimping surface and non-uniform crimping caused by the deviation of the quick connector are prevented; the pushing-down part drives the curling cavity to rotate at a certain angle while pushing down, so that the stress of the one circle of the seaming surface is more uniform.
The quick connector comprises a base and a fixing piece, wherein the bottom of the fixing piece protrudes to the periphery to form a protruding portion, the protruding portion can be embedded into the inner wall of the base, an assembly cavity is formed in the base and the fixing piece in a hollow mode, a sealing ring, a gasket and a buckle are assembled in the assembly cavity from bottom to top, an inner inserting tube is further arranged in the assembly cavity, an annular limiting protrusion is arranged at the bottom end of the inner inserting tube, the inner inserting tube sequentially penetrates through the sealing ring, the gasket and the buckle from bottom to top, and a gap for inserting a nylon tube is reserved between the inner inserting tube and the buckle.
Preferably, the lower end of the buckle is provided with a retractable clamping part, the clamping part comprises a plurality of clamping jaws which are dispersed outwards, and at least one clamping block is arranged on the inner side of each clamping jaw.
Preferably, the gasket is provided with an annular protrusion, a circle of slope is formed outside the annular protrusion, and the slope is matched with the inner wall of the lower end of the clamping part so as to avoid the clamping part from being clamped in the assembling cavity to generate offset.
Compared with the prior art, the quick connector adopting the technical scheme has the following beneficial effects:
firstly, the quick-plugging connector adopting the technical scheme fixes the inserted nylon tube in the quick-plugging connector through the buckle with the lower end capable of being contracted, when the nylon tube is inserted, the nylon tube drives the buckle to move downwards to be separated from the inner cavity of the fixing part, and the lower end of the buckle is opened, namely the nylon tube can be easily pushed into the quick-plugging connector; when drawing the nylon tube outward, the nylon tube drives the buckle and gets into the inner chamber of mounting, and the buckle bottom atress is contract for the better fixing of nylon tube is in quick connector.
Secondly, adopted above-mentioned technical scheme's quick connector, the accessible is turned up the mode and is fixed the mounting and accomplish the assembly in the casing, and assembly process is simple and have better fixed effect.
The assembling process of the quick connector is characterized by comprising the following procedures and steps:
1) assembling:
1.1) inserting the inner cannula into the assembly cavity of the base part in a bottom-in-front manner;
1.2) sequentially sleeving a sealing ring and a gasket on the inner inserting pipe and pushing the sealing ring and the gasket into an assembly cavity of the base part, wherein the annular bulge of the gasket faces outwards;
1.3) the clamping part of the buckle faces the gasket and is sleeved on the inner inserting tube, and the buckle is pushed inwards until the inner wall of the lower end of the clamping part is attached to the annular bulge of the gasket;
1.4) sleeving the fixing piece on the buckle and pushing the fixing piece towards the base part to enable the protruding part of the fixing piece to be completely embedded into the opening of the base part.
2) Edge curling:
2.1) preparing the tool: the edge curling tool is the edge curling tool of any one of the technical schemes;
2.2) fixing the quick connector assembled in the step 1) in a limiting groove of the hemming tool base, wherein an upper opening of the quick connector faces to the right upper side;
2.3) applying pressure towards the right lower part to the pressing part to enable the cambered surface at the bottom of the crimping cavity to inwards extrude the edge of the upper opening of the base part of the quick connector;
and 2.4) the edge of the upper opening of the base is inwards rolled by extrusion force, and the protruding part of the fixing piece is wrapped and fixed to finish the edge rolling operation.
Preferably, in step 2.3) of the step 2), a hydraulic device is arranged right above the pressing part, the hydraulic device is started, and the pressing part automatically moves downwards to enable the cambered surface at the bottom of the crimping cavity to inwards extrude the upper opening edge of the base part of the quick-connection plug; in addition, the following optimization scheme can be selected and adopted: when the pressing part drives the curling cavity to press downwards, the pressing part and the curling cavity synchronously rotate within a specific angle range, and the cover is curled under the extrusion of the rotating cambered surface.
Preferably, in the process 2), a step 2.5) is added:
2.5) a separating mechanism is additionally arranged on the base or the pressing part of the hemming tool, and the separating mechanism separates the quick connector from the hemming cavity after the hemming is finished, so that the quick connector is prevented from being clamped in the hemming cavity due to extrusion force.
Preferably, in the step 2), a plurality of arc-shaped protrusions are arranged on the arc surface at the bottom of the hemming cavity, the arc-shaped protrusions gradually narrow from two sides to the middle to form sharp parts, and the arc-shaped protrusions are arranged at equal intervals along the circumferential direction of the arc surface; when the pressing part is pressed, the arc-shaped protrusions on the arc surface further strengthen the extrusion of the opening edge of the base part, so that the opening edge of the base part forms a plurality of concave parts for strengthening the firmness between the fixing part and the base part.
Compared with the prior art, the assembling process of the quick connector adopting the technical scheme has the following beneficial effects:
firstly, the assembly process of the quick connector is higher in crimping speed in the crimping process compared with the crimping process of a traditional crimping machine, the distance and the rotating speed are not required to be adjusted, and the production efficiency is improved.
Secondly, by adopting the assembling process of the quick connector, the edge of the shell of the quick connector is curled in a one-step pressing mode, and the edge of the shell is simultaneously subjected to uniform extrusion force, so that the width and the oblique cutting angle of the curled surface are the same everywhere, and the problems of incomplete curling (sliding opening), excessive partial curling, crumpling of the curled surface and the like are solved; in a preferable scheme, a plurality of arc-shaped bulges are arranged on the arc surface at the bottom of the curling cavity, so that the extrusion of the opening edge of the base part can be further strengthened, and the curling edge forms a plurality of concave parts for strengthening the firmness between the fixing part and the base part.
And thirdly, by adopting the assembling process of the quick connector, a separation process is also provided after the curling is finished so as to separate the quick connector from the curling cavity, so that the quick connector can be prevented from being clamped in the curling cavity due to extrusion force, and an operator can conveniently take out the quick connector.
Drawings
Fig. 1 is a schematic structural diagram of a quick connector in embodiment 1 of the present invention.
Fig. 2 is a schematic cross-sectional view of the quick connector of embodiment 1.
Fig. 3 is a schematic structural view of the buckle in embodiment 1.
Fig. 4 is a schematic view of the engagement between the snap and the washer in embodiment 1.
Fig. 5 is a schematic structural view of the hemming tool in embodiment 1 of the present invention.
FIG. 6 is a schematic sectional view of a crimping portion and a pressing-down portion in example 1.
Fig. 7 is a schematic view showing the assembling manner and steps of the quick connector in embodiment 1.
Fig. 8 is a schematic view of an installation manner of the quick connector on the hemming tool in embodiment 1.
Fig. 9 is a schematic view showing the operation of the crimping chamber in example 1.
Fig. 10 is a schematic structural view of the crimping chamber in embodiment 2.
Reference numerals: 1. a base; 2. a fixing member; 20. a boss portion; 3. a seal ring; 4. a gasket; 40. an annular projection; 5. buckling; 50. a clamping jaw; 51. a clamping block; 6. inserting a tube; 60. a limiting bulge; 7. a base; 70. a limiting groove; 71. a support table; 710. a spiral track; 8. a hemming part; 80. a crimping cavity; 801. a cambered surface; 81. an arc-shaped bulge; 810. a sharp portion; 9. a pressing part; 10. and a hydraulic device.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example 1:
the quick connector shown in fig. 1 and 2 comprises a base 1 and a fixing piece 2, wherein the bottom of the fixing piece 2 protrudes to the periphery to form a protruding portion 20, the protruding portion 20 can be embedded into the inner wall of the base 1, an assembly cavity is formed in the base 1 and the fixing piece 2 in a hollow mode, a sealing ring 3, a gasket 4 and a buckle 5 are assembled in the assembly cavity from bottom to top, an inner inserting tube 6 is further arranged in the assembly cavity, an annular limiting protrusion 60 is arranged at the bottom end of the inner inserting tube 6, the inner inserting tube 6 sequentially penetrates through the sealing ring 3, the gasket 4 and the buckle 5 from bottom to top, and a gap for inserting a nylon tube is reserved between the inner inserting tube 6 and the buckle 5.
As shown in fig. 3 and 4, a retractable clamping portion is disposed at a lower end of the buckle 5, the clamping portion includes a plurality of outwardly diverging clamping jaws 50, a gap is left between the plurality of clamping jaws 50, two clamping blocks 51 are disposed on an inner side of each clamping jaw 50, and the two clamping blocks 51 are arranged up and down.
The gasket 4 is provided with an annular bulge 40, the outer side of the annular bulge 40 forms a circle of slope, and the slope is matched with the inner wall of the lower end of the clamping part so as to avoid the clamping from deviating in the assembling cavity.
The hemming tool shown in fig. 5 comprises a base 7, a hemming portion 8, a pressing portion 9 and a hydraulic device 10, wherein the hydraulic device 10 adopts a hydraulic oil cylinder, the hemming portion 8 is located below the pressing portion 9 and integrated with the pressing portion 9, the upper end of the pressing portion 9 is rotatably connected with a piston rod of the hydraulic oil cylinder, the base 7 is provided with a support table 71 for supporting the pressing portion 9 and limiting the movement direction of the pressing portion 9, the support table 71 limits the movement of the hemming portion 8 and the pressing portion 9 in the vertical direction, a channel is reserved in the middle of the support table 71, the pressing portion 9 penetrates through the channel of the support table 71, and a spiral track 710 for enabling the pressing portion 9 to rotate when the pressing portion 9 descends is arranged in the channel.
The base 7 is provided with a limiting groove 70 for embedding the quick connector, the limiting groove 70, the pressing part 9 and the crimping part 8 are all cylindrical, the inner wall of the limiting groove 70 is provided with threads, the quick connector can be screwed into the limiting groove 70 for fixing, and the axis of the limiting groove 70, the crimping part 8 and the pressing part 9 are positioned on the same straight line.
As shown in fig. 6, the inside of the crimping part 8 is hollow to form a crimping cavity 80 for the quick connector to enter, the crimping cavity 80 is cylindrical, the bottom of the crimping cavity 80 is internally shrunk to form an arc 801 for crimping the edge of the quick connector inwards, and the arc 801 is in smooth transition with the inner wall of the crimping cavity 80.
The assembly process of the quick connector shown in fig. 7 to 9 includes the following steps:
1) assembly (as shown in fig. 7):
1.1) inserting the inner cannula 6 with the bottom in the front into the fitting cavity of the base 1;
1.2) sequentially sleeving a sealing ring 3 and a gasket 4 on an inner inserting tube 6 and pushing the inner inserting tube and the gasket into an assembly cavity of a base part 1, wherein an annular bulge 40 of the gasket 4 faces outwards;
1.3) the clamping part of the buckle 5 faces the gasket 4 and is sleeved on the inner inserting tube 6, and the buckle 5 is pushed inwards until the inner wall of the lower end of the clamping part is attached to the annular bulge 40 of the gasket 4;
1.4) the fixing piece 2 is sleeved on the buckle 5 and pushed towards the base 1, so that the convex part 20 of the fixing piece 2 is completely embedded into the opening of the base 1.
2) Crimping (as shown in fig. 8 and 9):
2.1) preparing the tool: the hemming tool shown in fig. 5;
2.2) fixing the quick connector assembled in the step 1) in a limiting groove 70 of the hemming tool base 7, wherein the upper opening of the quick connector faces to the right upper side;
2.3) adjusting the position of the crimping part 8 to enable the wide side cavity to cover the upper opening of the quick connector base 7;
2.4) starting the hydraulic oil cylinder, wherein the hydraulic oil cylinder pushes the pressing part 9 to move downwards, so that the cambered surface 801 at the bottom of the crimping cavity 80 inwards extrudes the upper opening edge of the quick connector base 1;
2.5) the upper opening edge of the base part 1 is rolled inwards under the extrusion force, and the convex part 20 of the fixing part 2 is wrapped and fixed, thereby completing the crimping operation.
Example 2
As shown in fig. 10, this embodiment is similar to embodiment 1, and embodiment 2 is different from embodiment 1 in that:
in the step 2), a plurality of arc-shaped protrusions 81 are arranged on the arc surface 801 at the bottom of the curling cavity 80, the arc-shaped protrusions 81 gradually narrow from two sides to the middle to form sharp parts 810, and the arc-shaped protrusions 81 are arranged at equal intervals along the circumferential direction of the arc surface 801; when the pressing portion 9 is pressed, the arc-shaped protrusions 81 on the arc-shaped surface 801 further strengthen the pressing of the opening edge of the base portion 1, so that the opening edge of the base portion 1 forms a plurality of concave portions for enhancing the firmness between the fixing member 2 and the base portion 1.
The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (10)
1. The utility model provides a turn-up frock which characterized in that: the quick connector crimping structure comprises a crimping part (8) and a pressing part (9), wherein a crimping cavity (80) for the quick connector to enter is formed in the crimping part (8) in a hollow mode, the crimping cavity (80) is cylindrical, an arc surface (801) for enabling the edge of the quick connector to be crimped inwards is formed in the bottom of the crimping cavity (80) in a shrinkage mode, and the arc surface (801) is in smooth transition with the inner wall of the crimping cavity (80).
2. The hemming tool of claim 1, wherein: the quick connector fixing device is characterized by further comprising a base (7) used for fixing the quick connector, wherein a limiting groove (70) used for embedding the quick connector is formed in the base (7); the pressing part (9) is cylindrical, and the axis of the pressing part (9) is positioned on the same straight line with the axis of the crimping cavity (80) and the limiting groove (70).
3. The hemming tool of claim 2, wherein: the pressing-down part (9) is provided with a hydraulic device (10), the pressing-down part (9) is rotationally connected with a piston rod of the hydraulic device (10), the base is provided with a supporting platform (71) for supporting the pressing-down part (9) and limiting the movement direction of the pressing-down part (9), a channel through which the pressing-down part (9) passes is reserved in the middle of the supporting platform (71), the supporting platform (71) limits the curling part and the pressing-down part (9) to move only in the vertical direction, and a spiral track (710) used for enabling the pressing-down part (9) to rotate when the pressing-down part (9) descends is arranged in the channel.
4. A quick connector is characterized in that: the novel nylon pipe assembling device comprises a base (1) and a fixing piece (2), wherein the bottom of the fixing piece (2) protrudes to the periphery to form a protruding portion (20), the protruding portion (20) can be embedded into the inner wall of the base (1), an assembling cavity is formed in the base (1) and the fixing piece (2) in a hollow mode, a sealing ring (3), a gasket (4) and a buckle (5) are assembled in the assembling cavity from bottom to top, an inner inserting pipe (6) is further arranged in the assembling cavity, an annular limiting protrusion (60) is arranged at the bottom end of the inner inserting pipe (6), the inner inserting pipe (6) sequentially penetrates through the sealing ring (3), the gasket (4) and the buckle (5) from bottom to top, and a gap for inserting a nylon pipe is reserved between the inner inserting pipe (6) and the buckle (5).
5. The quick connect coupling of claim 5, wherein: the lower end of the buckle (5) is provided with a retractable clamping part, the clamping part comprises a plurality of clamping jaws (50) which are dispersed outwards, and at least one clamping block (51) is arranged on the inner side of each clamping jaw (50).
6. The quick connect coupling of claim 6, wherein: the clamping device is characterized in that an annular protrusion (40) is arranged on the gasket (4), a circle of slope is formed on the outer side of the annular protrusion (40), and the slope is matched with the inner wall of the lower end of the clamping portion so as to avoid the clamping of the clamping device in the assembling cavity from deviating.
7. The assembling process of the quick connector is characterized by comprising the following procedures and steps:
1) assembling:
1.1) inserting an inner cannula (6) into the assembly cavity of the base part (1) with the bottom in a front manner;
1.2) sequentially sleeving a sealing ring (3) and a gasket (4) on an inner inserting tube (6) and pushing the inner inserting tube and the gasket into an assembly cavity of a base part (1), wherein an annular bulge (40) of the gasket (4) faces outwards;
1.3) the clamping part of the buckle (5) faces the gasket (4) and is sleeved on the inner inserting tube (6), and the buckle (5) is pushed inwards until the inner wall of the lower end of the clamping part is attached to the annular bulge (40) of the gasket (4);
1.4) sleeving the fixing piece (2) on the buckle (5) and pushing the fixing piece towards the base (1) to enable the protruding part (20) of the fixing piece (2) to be completely embedded into the opening of the base (1);
2) edge curling:
2.1) preparing the tool: the hemming device comprises a hemming tool, a welding tool and a welding tool, wherein the hemming tool adopts any one technical scheme mentioned in claims 1-4;
2.2) fixing the quick connector assembled in the step 1) in a limiting groove (70) of the hemming tool base (7), wherein the upper opening of the quick connector faces to the right upper side;
2.3) applying pressure towards the right lower part to the pressing part (9) to enable the cambered surface (801) at the bottom of the crimping cavity (80) to inwards extrude the upper opening edge of the quick connector base (1);
and 2.4) the edge of the upper opening of the base (1) is inwards rolled by extrusion force, and the bulge part (20) of the fixing piece (2) is wrapped and fixed to finish the edge rolling operation.
8. The assembly process of the quick-connect coupling of claim 7, wherein: in step 2.3) of the step 2), a hydraulic device (10) is arranged right above the pressing part (9), the hydraulic device (10) is started, and the pressing part (9) automatically moves over the lower part, so that the cambered surface (801) at the bottom of the crimping cavity (80) inwards extrudes the upper opening edge of the quick connector base (1).
9. The assembly process of the quick connector as claimed in claim 1, wherein in the step 2), a step 2.5) is added:
2.5) a separating mechanism is additionally arranged on the base (7) or the pressing part (9) of the hemming tool, and the separating mechanism separates the quick connector from the hemming cavity (80) after hemming is finished, so that the quick connector is prevented from being clamped in the hemming cavity (80) due to extrusion force.
10. The assembly process of the quick-connect coupling of claim 7, wherein: in the step 2), a plurality of arc-shaped protrusions (81) are arranged on the arc surface (801) at the bottom of the curling cavity (80), the arc-shaped protrusions (81) gradually narrow from two sides to the middle to form sharp parts (810), and the arc-shaped protrusions (81) are arranged at equal intervals along the circumferential direction of the arc surface (801); when the pressing-down part (9) is pressed, the arc-shaped protrusions (81) on the arc-shaped surface (801) further strengthen the extrusion of the opening edge of the base part (1), and the sharp parts (810) enable the opening edge of the base part (1) to form a plurality of concave parts for strengthening the firmness between the fixing part (2) and the base part (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110943419.0A CN113714364B (en) | 2021-08-17 | 2021-08-17 | Quick connector, crimping tool and assembly process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110943419.0A CN113714364B (en) | 2021-08-17 | 2021-08-17 | Quick connector, crimping tool and assembly process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113714364A true CN113714364A (en) | 2021-11-30 |
| CN113714364B CN113714364B (en) | 2024-03-26 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114643306A (en) * | 2022-05-19 | 2022-06-21 | 成都成高阀门有限公司 | Valve seat pressing tool for valve |
| CN114962829A (en) * | 2022-05-24 | 2022-08-30 | 河北亚大汽车塑料制品有限公司 | Direct-insertion quick connector with error-proofing function |
| CN117307938A (en) * | 2023-09-25 | 2023-12-29 | 宝腾智能润滑技术(东莞)有限公司 | Quick-plug joints and positioning assembly devices for oil line lubrication equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114643306A (en) * | 2022-05-19 | 2022-06-21 | 成都成高阀门有限公司 | Valve seat pressing tool for valve |
| CN114962829A (en) * | 2022-05-24 | 2022-08-30 | 河北亚大汽车塑料制品有限公司 | Direct-insertion quick connector with error-proofing function |
| CN114962829B (en) * | 2022-05-24 | 2023-06-02 | 河北亚大汽车塑料制品有限公司 | Direct-insertion quick plug with error-proofing function |
| CN117307938A (en) * | 2023-09-25 | 2023-12-29 | 宝腾智能润滑技术(东莞)有限公司 | Quick-plug joints and positioning assembly devices for oil line lubrication equipment |
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|---|---|
| CN113714364B (en) | 2024-03-26 |
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