CN113714364B - Quick connector, crimping tool and assembly process thereof - Google Patents
Quick connector, crimping tool and assembly process thereof Download PDFInfo
- Publication number
- CN113714364B CN113714364B CN202110943419.0A CN202110943419A CN113714364B CN 113714364 B CN113714364 B CN 113714364B CN 202110943419 A CN202110943419 A CN 202110943419A CN 113714364 B CN113714364 B CN 113714364B
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- Prior art keywords
- hemming
- quick connector
- base
- cavity
- buckle
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000002788 crimping Methods 0.000 title claims abstract description 28
- 230000008569 process Effects 0.000 title claims abstract description 27
- 238000009957 hemming Methods 0.000 claims abstract description 89
- 238000003825 pressing Methods 0.000 claims abstract description 49
- 238000003780 insertion Methods 0.000 claims abstract description 19
- 230000037431 insertion Effects 0.000 claims abstract description 19
- 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 12
- 238000001125 extrusion Methods 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- 238000000926 separation method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- 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, a crimping tool and an assembly process thereof, and the crimping tool and the assembly process can be used for rapidly crimping the edge of a shell of the quick connector so as to achieve a better fixing effect. The key points of the technical scheme are as follows: the quick connector comprises a base and a fixing piece, wherein the fixing piece is fixed in the inner wall of the base in a hemming mode, an inner insertion pipe, a sealing ring, a gasket and a buckle are assembled in the base from bottom to top, and a gap for inserting a nylon pipe is reserved between the inner insertion pipe and the buckle; the hemming tool comprises a hemming part and a pressing part, wherein a hemming cavity is formed in the hemming part, and the bottom of the hemming cavity is internally folded to form an arc surface for inwards hemming the edge of the quick connector; the assembling process of the quick connector comprises the assembling and hemming processes of the quick connector, wherein the assembling process is to assemble each part and the fixing piece in the base part, and the hemming is to hemme the opening of the base part through the hemming tool.
Description
Technical Field
The invention relates to the field of quick connector assembly processes, in particular to a quick connector, a crimping tool thereof and an assembly process.
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 systems, can be connected and disconnected by bare hands under the condition of no need of using tools, and is suitable for 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 in the shell of the quick connector through fixing pieces, and because a gasket made of plastic or rubber exists in the quick connector, the gasket cannot withstand high temperature, so that the fixing pieces cannot be fixed on the shell in a fusion welding mode, and the fixing pieces are fixed on the shell in a hemming mode generally. 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 by high-speed rotation of the workpiece, so that the hemming effect is formed. 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 port), edge collapse, excessive hemming, wrinkling of the hemming cover and the like are easy to occur.
Therefore, how to simplify the assembly process of the quick connector, ensure a better curling effect, and improve the curling speed is a problem to be solved in the field of the assembly process of the quick connector.
Disclosure of Invention
The invention aims to provide a quick connector, a crimping tool and an assembly process thereof, and the crimping tool and the assembly process can be used for rapidly crimping the edge of a shell of the quick connector so as to achieve a better fixing effect.
In order to achieve the above object, the present invention adopts the following technical scheme:
the utility model provides a turn-up frock, includes turn-up portion and push down portion, the inside cavity of turn-up portion forms the turn-up chamber that is used for quick connector to get into, the turn-up chamber is cylindrical, turn-up chamber bottom adduction forms the cambered surface that is used for making quick connector edge inwards turn-up, the cambered surface is smooth transition with the inner wall in turn-up 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 part is cylindrical, and the axis of the lower pressing part, the axis of the hemming cavity and the axis of the limiting groove are positioned on the same straight line.
Preferably, the pressing part is provided with a hydraulic device, the pressing part is rotatably 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 for allowing the pressing part to pass through is reserved in the middle of the supporting table, the supporting table limits the hemming part and the pressing part to move only in the vertical direction, and a spiral track for enabling the pressing part to rotate simultaneously 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:
1. compared with the existing hemming machine, the hemming tool adopting the technical scheme is simpler in structure, more convenient to use, beneficial to reducing production cost, accelerating hemming speed and reducing working difficulty of operators.
2. By adopting the hemming tool of the technical scheme, the pressure is applied to the edge of the shell of the quick connector from the periphery through the cambered surface in the hemming cavity, the edge of the shell is uniformly stressed, the problems of excessive hemming at certain positions and insufficient hemming at certain positions of the edge of the shell are avoided, and wrinkles are not easy to form on the hemming cover.
3. According to the hemming tool adopting the technical scheme, the quick connector is fixed through the base, the quick connector is kept in the vertical upward direction, the pressing part is limited to move in the vertical direction through the supporting table, when the subsequent hemming action is carried out, the axis of the hemming cavity and the quick connector are ensured to be positioned on the same straight line, and the problems of inclination and uneven hemming of the hemming cover caused by the deviation of the quick connector are prevented; the pressing part drives the hemming cavity to rotate at a certain angle while pressing downwards, so that the stress of the periphery of the hemming cover is more uniform.
The utility model provides a quick connector, includes basal portion and mounting, the protruding bellying that forms around to the mounting bottom, in the inner wall of basal portion can be embedded to the bellying, the inside cavity of basal portion and mounting forms the assembly chamber, be equipped with sealing washer, packing ring and buckle from bottom to top in the assembly chamber, still be equipped with interior intubate in the assembly chamber, interior intubate bottom is equipped with annular spacing arch, and interior intubate passes sealing washer, packing ring and buckle from bottom to top in proper order, leaves the gap that is used for inserting the nylon tube between interior intubate 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 outwards dispersed, 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 on the outer side of 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 deviation of the clamping part in the assembly cavity.
Compared with the prior art, the quick connector adopting the technical scheme has the following beneficial effects:
1. according to the quick connector adopting the technical scheme, the inserted nylon pipe is fixed in the quick connector through the fastener with the retractable lower end, when the nylon pipe is inserted, the nylon pipe drives the fastener to move downwards to be separated from the inner cavity of the fixing piece, the lower end of the fastener is opened, and namely the nylon pipe can be easily pushed into the quick connector; when the nylon tube is pulled outwards, the nylon tube drives the buckle to enter the inner cavity of the fixing piece, and the bottom of the buckle is stressed and contracted, so that the nylon tube is better fixed in the quick connector.
2. The quick connector adopting the technical scheme can fix the fixing piece in the shell in a curling mode to finish assembly, and the assembly process is simple and has a good fixing effect.
The assembling process of the quick connector is characterized by comprising the following working procedures and steps:
1) And (3) assembling:
1.1 Inserting the inner cannula with the bottom in front into the assembly cavity of the base;
1.2 The sealing ring and the gasket are sleeved on the inner cannula in sequence and pushed into the assembly cavity of the base part, and the annular bulge of the gasket faces to the outer side;
1.3 The clamping part of the buckle faces the gasket and is sleeved on the inner insertion pipe, 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 The fixing piece is sleeved on the clamping buckle and pushed towards the base part, so that the protruding part of the fixing piece is completely embedded into the opening of the base part.
2) Hemming:
2.1 Preparation tool): the hemming tool is of any one of the technical schemes;
2.2 Fixing the assembled quick connector in the step 1) in a limit 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 enable the cambered surface at the bottom of the crimping cavity to inwards squeeze the upper opening edge of the base part of the quick connector;
2.4 The edge of the upper opening of the base is inwards turned by the extrusion force, the convex part of the fixing piece is wrapped and fixed, and the hemming operation is completed.
Preferably, in step 2.3) of step 2), a hydraulic device is arranged right above the pressing part, and the hydraulic device is started, so that the pressing part automatically moves downwards to enable the cambered surface at the bottom of the crimping cavity to inwards press the upper opening edge of the base part of the quick connector; in addition, the following optimization scheme can be adopted: when the pressing part drives the hemming cavity to press downwards, the pressing part and the hemming cavity synchronously rotate within a specific angle range, so that the hemming cover forms a hemming under the extrusion of the rotating cambered surface.
Preferably, in step 2), a step 2.5) is added:
2.5 The base or the pressing part of the crimping tool is additionally provided with a separating mechanism, and the separating mechanism separates the quick connector from the crimping cavity after crimping is finished, so that the quick connector is prevented from being clamped in the crimping 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 curling cavity, the arc-shaped protrusions gradually narrow from two sides to the middle to form sharp parts, and the arc-shaped protrusions are equidistantly arranged 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 a plurality of concave parts for strengthening the firmness between the fixing piece and the base part are formed on the opening edge of the base part.
Compared with the prior art, the assembling process of the quick connector adopting the technical scheme has the following beneficial effects:
1. the assembling process of the quick connector provided by the invention has the advantages that the hemming speed is higher than that of the process of hemming by adopting the traditional hemming machine in the hemming process, the adjustment of the distance and the rotating speed is not needed, and the improvement of the production efficiency is facilitated.
2. By adopting the assembly 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 uniformly extruded, so that the width and the bevel angle of the curled cover are the same everywhere, and the problems of incomplete curling (sliding port), excessive partial curling, wrinkling of the curled cover and the like are solved; in the preferred scheme, be equipped with a plurality of arc arches on the cambered surface of turn-up chamber bottom, can further strengthen the extrusion to the opening edge of basal portion for the turn-up forms a plurality of depressed parts for strengthen the reinforcing of fastness between mounting and the basal portion.
3. By adopting the assembly process of the quick connector, a separation process is further provided after the hemming is completed so as to separate the quick connector from the hemming cavity, so that the quick connector can be prevented from being clamped in the hemming 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 diagram of the buckle in embodiment 1.
Fig. 4 is a schematic diagram illustrating the cooperation between the buckle and the washer in embodiment 1.
Fig. 5 is a schematic structural diagram of a hemming tool in embodiment 1 of the present invention.
Fig. 6 is a schematic cross-sectional view of the hemming portion and the pressing portion in example 1.
Fig. 7 is a schematic diagram showing the assembly and steps of the quick connector in embodiment 1.
Fig. 8 is a schematic view showing the installation of the quick connector in the hemming tool of embodiment 1.
Fig. 9 is a schematic diagram of the operation of the crimping chamber in example 1.
Fig. 10 is a schematic structural view of the crimping chamber in example 2.
Reference numerals: 1. a base; 2. a fixing member; 20. a boss; 3. a seal ring; 4. a gasket; 40. an annular protrusion; 5. a buckle; 50. a clamping jaw; 51. a clamping block; 6. an inner cannula; 60. a limit protrusion; 7. a base; 70. a limit groove; 71. a support table; 710. a spiral track; 8. a hemming portion; 80. a crimping cavity; 801. a cambered surface; 81. arc-shaped bulges; 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 as 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 part 20, the protruding part 20 can be embedded into the inner wall of the base 1, the inside of the base 1 and the fixing piece 2 is hollow to form an assembly cavity, a sealing ring 3, a gasket 4 and a buckle 5 are assembled in the assembly cavity from bottom to top, an inner insertion tube 6 is further arranged in the assembly cavity, an annular limiting protrusion 60 is arranged at the bottom end of the inner insertion tube 6, the inner insertion 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 insertion tube 6 and the buckle 5.
As shown in fig. 3 and 4, the lower end of the buckle 5 is provided with a retractable clamping part, the clamping part comprises a plurality of outwards-diverging clamping jaws 50, gaps are reserved among the clamping jaws 50, two clamping blocks 51 are arranged on the 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, a circle of slope is formed on the outer side of the annular bulge 40, and the slope is matched with the inner wall of the lower end of the clamping part so as to avoid the deviation of the clamping part in the assembly 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 cylinder, the hemming portion 8 is located below the pressing portion 9 and is integrated with the pressing portion 9, the upper end portion of the pressing portion 9 is rotatably connected with a piston rod of the hydraulic cylinder, the base 7 is provided with a supporting table 71 for supporting the pressing portion 9 and limiting the movement direction of the pressing portion 9, the supporting table 71 limits the hemming portion 8 and the pressing portion 9 to move only in the vertical direction, a channel is reserved between the supporting table 71, the pressing portion 9 penetrates through the channel of the supporting table 71, and a spiral track 710 for enabling the pressing portion 9 to rotate simultaneously when the pressing portion 9 descends is arranged in the channel.
The base 7 is provided with a limit groove 70 for embedding the quick connector, the limit groove 70, the pressing part 9 and the hemming part 8 are all cylindrical, the inner wall of the limit groove 70 is provided with threads, the quick connector can be screwed into the limit groove 70 for fixing, and the axle center of the limit groove 70, the axle center of the hemming part 8 and the pressing part 9 are positioned on the same straight line.
As shown in fig. 6, the inside of the hemming portion 8 is hollow to form a hemming cavity 80 for the quick connector to enter, the hemming cavity 80 is cylindrical, the bottom of the hemming cavity 80 is internally folded to form an arc surface 801 for inwards hemming the edge of the quick connector, and the arc surface 801 is in smooth transition with the inner wall of the hemming cavity 80.
The assembly process of the quick connector shown in fig. 7 to 9 comprises the following procedures and steps:
1) Assembly (as shown in fig. 7):
1.1 Inserting the inner tube 6 into the fitting cavity of the base 1 with the bottom in front;
1.2 A sealing ring 3 and a gasket 4 are sleeved on the inner insertion tube 6 in sequence and pushed into the assembly cavity of the base 1, and the annular bulge 40 of the gasket 4 faces to the outer side;
1.3 The clamping part of the clamping buckle 5 faces the gasket 4 and is sleeved on the inner insertion pipe 6, and the clamping 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 member 2 is sleeved on the buckle 5 and pushed toward the base 1, so that the protruding part 20 of the fixing member 2 is completely embedded into the opening of the base 1.
2) Hemming (as shown in fig. 8 and 9):
2.1 Preparation tool): the hemming tool shown in fig. 5;
2.2 Fixing the assembled quick connector in the step 1) in a limit groove 70 of a hemming tool base 7, wherein an upper opening of the quick connector faces to the right upper side;
2.3 Adjusting the position of the curled edge 8 so that the wide side cavity covers the upper opening of the quick connector base 7;
2.4 A hydraulic cylinder is started, and pushes the pressing part 9 to move downwards, so that the cambered surface 801 at the bottom of the crimping cavity 80 presses the upper opening edge of the quick connector base 1 inwards;
2.5 The upper opening edge of the base 1 is inwardly turned by the pressing force, the boss 20 of the fixing member 2 is wrapped and fixed, and the hemming operation is completed.
Example 2
As shown in fig. 10, this embodiment is similar to embodiment 1, and embodiment 2 differs from embodiment 1 in that:
in the step 2), a plurality of arc-shaped protrusions 81 are arranged on an 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 equidistantly arranged along the circumferential direction of the arc surface 801; when the pressing portion 9 is pressed, the arc-shaped protrusion 81 on the arc surface 801 further reinforces the pressing of the opening edge of the base 1, so that the opening edge of the base 1 forms a plurality of concave portions for reinforcing the firmness between the fixing member 2 and the base 1.
While the foregoing is directed to the preferred embodiment of the present invention, other and further modifications and improvements may be made by those skilled in the art without departing from the principles of the invention, and such are intended to be considered within the scope of the invention.
Claims (5)
1. Crimping frock, its characterized in that: the quick connector comprises a hemming part (8) and a pressing part (9), wherein a hemming cavity (80) for the quick connector to enter is formed in the inside of the hemming part (8), the hemming cavity (80) is cylindrical, an arc surface (801) for inwards hemming the edge of the quick connector is formed by inwards retracting the bottom of the hemming cavity (80), and the arc surface (801) is in smooth transition with the inner wall of the hemming cavity (80);
the crimping tool is only suitable for a quick connector, the quick connector comprises a base (1) and a fixing piece (2), 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 by 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 insertion tube (6) is further arranged in the assembly cavity, an annular limiting protrusion (60) is arranged at the bottom end of the inner insertion tube (6), the inner insertion 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 insertion tube (6) and the buckle (5);
the crimping tool further comprises a base (7) for fixing the quick connector, and a limit groove (70) for embedding the quick connector is formed in the base (7); the lower pressing part (9) is cylindrical, and the axis of the lower pressing part (9) is positioned on the same straight line with the axes of the hemming cavity (80) and the limit groove (70);
a plurality of arc-shaped protrusions (81) are arranged on an 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 equidistantly arranged along the circumferential direction of the arc surface (801); when the pressing part (9) is pressed, the arc-shaped protrusion (81) on the arc surface (801) further strengthens the extrusion of the opening edge of the base part (1), and the sharp part (810) enables the opening edge of the base part (1) to form a plurality of concave parts for strengthening the firmness between the fixing piece (2) and the base part (1).
2. The hemming tool of claim 1, wherein: the hold-down part (9) is equipped with a hydraulic device (10).
3. The assembling process of the quick connector is characterized in that based on the hemming tool disclosed in claim 1, the hemming tool is used for processing the quick connector, the quick connector comprises a base (1) and a fixing piece (2), the bottom of the fixing piece (2) protrudes to the periphery to form a protruding part (20), the protruding part (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), a sealing ring (3), a gasket (4) and a buckle (5) are assembled in the assembling cavity from bottom to top, an inner insertion tube (6) is further arranged in the assembling cavity, an annular limiting protrusion (60) is arranged at the bottom end of the inner insertion tube (6), the inner insertion tube (6) sequentially penetrates through the sealing ring (3), the gasket (4) and the buckle (5), and a gap for inserting a nylon tube is reserved between the inner insertion tube (6) and the buckle (5); the lower end of the buckle (5) is provided with a retractable clamping part, the clamping part comprises a plurality of outwards-divergent clamping jaws (50), at least one clamping block (51) is arranged on the inner side of each clamping jaw (50), and the assembly process comprises the following procedures and steps:
1) And (3) assembling:
1.1 Inserting the inner tube (6) into the assembly cavity of the base (1) with the bottom in front;
1.2 The sealing ring (3) and the gasket (4) are sleeved on the inner insertion tube (6) in sequence and pushed into the assembly cavity of the base part (1), and the 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 insertion pipe (6), and the buckle (5) is pushed inwards until the inner wall at 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 protruding part (20) of the fixing piece (2) is completely embedded into the opening of the base (1);
2) Hemming:
2.1 Preparation tool): a hemming tool, which is a hemming tool as set forth in claim 1 or 2;
2.2 Fixing the assembled quick connector in the step 1) in a limit groove (70) of the hemming tool base (7), wherein an upper opening of the quick connector faces to the right upper side;
2.3 Applying pressure to the pressing part (9) towards the right lower direction, so that the cambered surface (801) at the bottom of the crimping cavity (80) presses the upper opening edge of the quick connector base (1) inwards;
2.4 The edge of the upper opening of the base part (1) is inwards turned by the extrusion force, the convex part (20) of the fixing piece (2) is wrapped and fixed, and the hemming operation is completed.
4. A process for assembling a quick connector according to claim 3, wherein: in step 2.3) of 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 downwards, so that the cambered surface (801) at the bottom of the crimping cavity (80) inwards presses the upper opening edge of the quick connector base part (1).
5. A process for assembling a quick connector according to claim 3, characterized in that in step 2), a step 2.5) is added:
2.5 A separating mechanism is additionally arranged on a base (7) or a pressing part (9) of the crimping tool, and the separating mechanism separates the quick connector from the crimping cavity (80) after crimping is finished, so that the quick connector is prevented from being clamped in the crimping cavity (80) due to extrusion force.
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 CN113714364A (en) | 2021-11-30 |
| CN113714364B true CN113714364B (en) | 2024-03-26 |
Family
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Family Applications (1)
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| CN202110943419.0A Active CN113714364B (en) | 2021-08-17 | 2021-08-17 | Quick connector, crimping tool and assembly process thereof |
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| CN114643306B (en) * | 2022-05-19 | 2022-08-02 | 成都成高阀门有限公司 | Valve seat pressing tool for valve |
| 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 connector for oil way lubrication equipment and positioning assembly device |
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| CN113714364A (en) | 2021-11-30 |
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