CN108620498B - Ring pressing tool for clamping and pressing type pipe fitting - Google Patents
Ring pressing tool for clamping and pressing type pipe fitting Download PDFInfo
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- CN108620498B CN108620498B CN201810403627.XA CN201810403627A CN108620498B CN 108620498 B CN108620498 B CN 108620498B CN 201810403627 A CN201810403627 A CN 201810403627A CN 108620498 B CN108620498 B CN 108620498B
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- clamping
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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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
- B21D39/046—Connecting tubes to tube-like fittings
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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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
- Joints That Cut Off Fluids, And Hose Joints (AREA)
Abstract
The invention relates to a ring pressing tool of a press-fitting type pipe fitting, which comprises a fixed die assembly and at least two movable die assemblies, wherein two ends of the fixed die assembly are respectively hinged and fixed with the inner ends of the movable die assemblies, the outer ends of the two movable die assemblies at the free ends can be buckled together, so that an annular clamping ring for clamping and pressing the outer side of a first pipe fitting to be pressed by a ring is formed at the inner sides of the fixed die assembly and the movable die assemblies after buckling, a second pipe fitting to be inserted is sleeved in the first pipe fitting, a resisting part which can stretch in the radial direction of the clamping ring and can expose out of the inner wall surface of the clamping ring is arranged on the clamping ring, and a first positioning part which can limit the movement of the first pipe fitting in the axial direction is formed on the side wall of the resisting part, which faces one side of the first pipe fitting. When a user performs ring pressing operation, due to the limiting effect of the first positioning part of the blocking part, the first pipe fitting can be quickly placed at a preset ring pressing position, the ring pressing time is shortened, and the working efficiency is improved.
Description
Technical Field
The invention relates to a squeezing tool for connecting pipe fittings, in particular to an annular pressing tool for clamping and pressing pipe fittings.
Background
In the aspect of pipe connection, the pipe connecting piece with the sealing ring is connected with the pipe in a crimping mode by using a crimping tool/die, the pipe connecting piece is one of the modes of pipe connection in the prior art, and the pipe connecting piece is widely applied to the technical field of pipeline connection of water, gas, oil and the like due to convenience, rapidness and good sealing property.
The Chinese invention patent with the application number of CN200910157251 discloses a clamping type pipe fitting ring pressing die which comprises a plurality of extrusion dies and pin shafts, wherein the extrusion dies are hinged with each other through the pin shafts, at least one extrusion fixed die set and two same extrusion movable die sets are arranged, the extrusion movable die sets are hinged with each other at the two ends of the extrusion fixed die set to form concentric equal-diameter annular sleeves, the extrusion fixed die sets and the two same extrusion movable die sets are uniformly distributed on the annular sleeves and respectively occupy 120 degrees of the circumference, each extrusion fixed die set comprises a fixed die, a fixed die compression sheet, a positioning pin, a connecting block and a pin shaft, the fixed die compression sheets are assembled on the inner rings of the fixed die and connected together through the positioning pin, the extrusion movable die sets comprise movable dies, movable die compression sheets, positioning pins, reset springs and pin shafts, the movable die compression sheets and the reset springs are assembled on the inner rings of the movable dies and positioned through the positioning pin, one end of the movable die is hinged with the connecting block of the extrusion fixed die set by a pin shaft. The extrusion fixed module and the extrusion movable module are hinged at two ends to form a concentric equal-diameter annular sleeve, the pipe fitting is tightly held in the annular sleeve of 360 degrees in the annular sleeve, the pipe fitting is uniformly contracted under the action of holding power to complete clamping and pressing, the problem of extrusion wrinkling of the pipe fitting is avoided, good contraction of a sealing ring is ensured, the sealing requirement is met, and the roundness and the surface finish of a U-shaped convex ring of the pipe fitting are kept after compression.
However, the ring pressing die for the clamping and pressing type pipe fitting has certain defects, for example, the ring pressing tool lacks an axial positioning function for the pipe fitting, so that when a user clamps the pipe fitting initially, the user only needs to determine the approximate positions of two pipe fittings needing ring pressing according to the receiving feeling or personal experience, the ring pressing time is prolonged, and the working efficiency is greatly reduced; in addition, the ring pressing tool is lack of a radial clamping function for the pipe fitting, and the pipe fitting cannot be effectively clamped, so that the pipe fitting is easy to slide and separate from the jaw, the crimping quality is affected, and waste products are easy to generate.
Therefore, the ring-pressing tool for the clamping-pressing type pipe fitting needs to be further improved.
Disclosure of Invention
The invention aims to solve the technical problem of providing an annular pressing tool capable of axially positioning a pipe to be clamped and pressed aiming at the current situation of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a ring of clamp pressure formula pipe fitting presses instrument, includes cover half subassembly and two at least movable mould subassemblies, the both ends of cover half subassembly are articulated fixed with the inner of movable mould subassembly respectively, and the outer end of two movable mould subassemblies that are in the free end can the lock be in the same place for the inboard formation of cover half subassembly, movable mould subassembly after the lock is annular and is used for the clamp to press the clamping ring in the first pipe fitting outside of waiting to press the ring, first pipe fitting endotheca is equipped with and remains the male second pipe fitting, the clamp is pressed to be equipped with on the ring and can follow the radial direction flexible and can expose the card the piece of keeping out of the interior wall of clamp pressure ring, the orientation of this piece of keeping out the lateral wall formation of first pipe fitting one side can be in the axial direction the first locating part of the removal of injecing first pipe.
Preferably, the supporting and connecting part is connected with a first elastic part, the first elastic part enables the supporting and connecting part to always keep a trend of approaching to the axis direction of the clamping ring, and a second positioning part capable of clamping the outer wall surface of the second pipe is formed on the end wall of the supporting and connecting part facing the second pipe. The second positioning part of the blocking part can effectively clamp the outer wall surface of the second pipe fitting, so that the second pipe fitting is prevented from sliding and dropping out of the jaw, and the crimping quality is improved.
Preferably, the fixed die assembly comprises a fixed die in an arc shape and at least one first pressing block which is positioned on the inner side of the fixed die and movably connected with the fixed die, and the movable die assembly comprises a movable die in an arc shape and at least one second pressing block which is positioned on the inner side of the movable die and movably connected with the movable die; second elastic pieces capable of enabling the first pressing blocks and the second pressing blocks to be away from each other are arranged between the adjacent first pressing blocks or between the adjacent second pressing blocks, and two end portions of each second elastic piece are respectively pressed in concave holes in the end faces of the adjacent first pressing blocks or the adjacent second pressing blocks; the two ends of the fixed die are hinged and fixed with the inner ends of the movable dies respectively, the outer ends of the two movable dies can be buckled together, and the first pressing block and the second pressing block are driven to overcome the elastic force of the second elastic piece to be buckled together to form the clamping ring. Due to the structural arrangement, when the ring pressing tool is buckled in a ring pressing mode, the at least one first pressing block and the at least one second pressing block can be uniformly contracted under the action of the surrounding force, so that the stress of the external pipe fitting is more uniform, the problem of wrinkling after extrusion is solved, and the sealing performance is good.
Preferably, the fixed die is movably connected with the first pressing block through a first limiting stopper, the first limiting stopper is attached to the side wall surface of the fixed die and the side wall surface of the first pressing block, one end of the first limiting stopper is fixedly arranged on the side wall of the fixed die, the other end of the first limiting stopper is provided with a first movable hole, a first positioning pin penetrates through the first movable hole, and the first positioning pin is fixedly connected with the side wall of the first pressing block; the movable die and the second pressing block are movably connected through the second limiting stopper, the second limiting stopper is attached to the side wall surface of the movable die and the side wall surface of the second pressing block, one end of the second limiting stopper is fixedly arranged on the side wall of the movable die, the other end of the second limiting stopper is provided with a second movable hole, a second positioning pin penetrates through the second movable hole, and the second positioning pin is fixedly connected with the side wall of the second pressing block. Due to the limiting effect of the first limiting stopper and the second limiting stopper, the first pressing block and the second pressing block can be respectively arranged on the inner sides of the fixed die and the movable die in a surrounding manner, so that falling off is prevented.
Preferably, the first movable hole and the second movable hole are both arc-shaped holes consistent with the circumferential direction of the clamping ring. The arc length of the arc-shaped hole is matched with the compression stroke of the second elastic part, specifically, the arc length of the arc-shaped hole cannot be too long, and the second elastic part is prevented from falling off in a non-annular pressure state.
Preferably, the first pressing block and the second pressing block are respectively provided with a guide groove for the blocking piece to move along the radial direction of the clamping ring on the side wall attached to the first limiting blocking piece, the blocking piece is inserted in the guide groove, the middle part of the blocking piece is also provided with a limiting groove in the same direction as the guide groove, a limiting pin and the first elastic piece are arranged in the limiting groove, the limiting pin is arranged on the first pressing block or the second pressing block in a penetrating manner, and two ends of the first elastic piece are respectively pressed against the inner wall of one side, close to the second positioning part, of the limiting pin and the limiting groove, so that the blocking piece always keeps the trend of being close to the axis direction of the clamping ring. Due to the elastic action of the first elastic piece, the end face of the abutting piece can effectively clamp the pipe fitting, the pipe fitting is prevented from sliding or falling off in the jaw, the crimping quality is guaranteed, and waste products are reduced.
Preferably, the first elastic piece is a spring, and the compression stroke of the spring is matched with the length of the limiting groove, so that the resisting piece is provided with a first state in which the clamping ring is exposed out for limiting the axial movement of the first pipe fitting.
Preferably, an arc surface consistent with the radian of the clamping ring is formed on the end wall of the abutting part, and the arc surface is the second positioning part; the length of the abutting piece is matched with that of the guide groove, so that the abutting piece is in a buckled state of the clamping ring, and the second positioning portion is overlapped with the inner side arc surface of the clamping ring. Due to the adoption of the structure, the circular-pressed external pipe fitting has good roundness and smoothness at the circular-pressed part, and pits and wrinkles are avoided.
Preferably, the first positioning pin and the limiting pin penetrating through the first pressing block are the same pin shaft; the second positioning pin and the limiting pin penetrating through the second pressing block are the same pin shaft. The structure of the ring pressing tool is greatly simplified by the arrangement, and the production cost is reduced.
Preferably, the ring pressing tool further comprises a jaw device for extruding the outer end of the movable die and buckling the clamping ring, the jaw device comprises two clamping portions which are arranged oppositely, the end portions of the clamping portions are provided with protruding portions protruding into the jaws, and the outer end of the movable die is provided with a recessed portion matched with the protruding portions. The jaw device and the movable die are arranged in a split mode, so that the jaw device can be used for extruding external pipe fittings at different positions and different angles, and users can press the pipe fittings at corners and in narrow spaces conveniently.
Compared with the prior art, the invention has the advantages that: the clamping and pressing ring of the ring pressing tool provided by the invention is provided with the resisting piece which can stretch out and draw back along the radial direction of the clamping and pressing ring and can expose out of the inner wall surface of the clamping and pressing ring, and the side wall of the resisting piece forms a first positioning part which limits the movement of the first pipe fitting in the axial direction. The annular pressing tool can realize quick positioning of the outer pipe fitting in the axial direction. When a user performs ring pressing operation, due to the limiting effect of the first positioning part of the blocking part, the first pipe fitting can be quickly placed at a preset ring pressing position, the ring pressing time is shortened, and the working efficiency is improved.
Drawings
FIG. 1 is a cross-sectional view of an annular compression tool in an embodiment of the present invention;
FIG. 2 is a schematic perspective view of an annular pressing tool according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of the ring pressing tool in a state of clamping the pipe (before ring pressing) according to an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a partially exploded view of an embodiment of the ring crush tool of the present invention;
FIG. 6 is an exploded view of the clamping ring of the ring crush tool in an embodiment of the present invention;
FIG. 7 is a schematic view of a ring pressing tool in a non-ring pressing state (the stopping member is in an extended state) according to an embodiment of the present invention;
FIG. 8 is a schematic view of the ring crush tool in the ring crush state (the stop member is in the retracted state) according to the embodiment of the present invention;
FIG. 9 is a schematic perspective view of a first pressing block of the ring pressing tool according to an embodiment of the present invention (the second pressing block has the same structure);
FIG. 10 is a schematic view of a jaw apparatus of an annular compression tool in an embodiment of the present invention;
fig. 11 is a cross-sectional view of the ring pressing tool in a state of clamping the pipe (after ring pressing) according to the embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 4, the ring pressing tool for the clamping and pressing type pipe fitting comprises a fixed die assembly 1 and at least two movable die assemblies 2, specifically, in this embodiment, there are two movable die assemblies 2, two ends of the fixed die assembly 1 are respectively hinged and fixed with inner ends of the movable die assemblies 2, and outer ends of the two movable die assemblies 2 can be buckled together, so that the inner sides of the fixed die assembly 1 and the movable die assemblies 2 after being buckled form an annular clamping and pressing ring 4 for clamping and pressing the outer wall surface of the external pipe fitting. In this embodiment, the ring pressing tool of the press-fit pipe is used to press the external pipe fittings sleeved with each other to form a sealed connection, wherein the external pipe fittings are the first pipe fitting 3 and the second pipe fitting 5 sleeved in the first pipe fitting 3. The clamp pressing ring 4 of the ring pressing tool is provided with a blocking part 6 which can stretch along the radial direction of the clamp pressing ring 4 and can expose the inner wall surface of the clamp pressing ring 4, the side wall of the blocking part 6 facing one side of the first pipe fitting 3 forms a first positioning part 61 which can limit the movement of the first pipe fitting 3 in the axial direction, and particularly, the first positioning part 61 is a plane. The blocking piece 6 is connected with a first elastic piece 8 in a supporting mode, the first elastic piece 8 enables the blocking piece 6 to always keep a trend close to the axis direction of the clamping ring 4, namely the blocking piece 6 can extend out of the inner wall surface of the clamping ring 4 along the radial direction of the clamping ring 4 under the elastic action of the first elastic piece 8, and a second positioning portion 62 capable of clamping the outer wall surface of the second pipe 5 is formed on the end wall, facing the second pipe 5, of the blocking piece 6. The annular pressing tool has the axial positioning function on the external pipe fitting and also has the radial clamping function on the pipe fitting. When the user was carrying out the ring and is pressing the operation, owing to support the first location portion 61 limiting displacement who keeps off piece 6, predetermined ring pressure position is pressed to placing that first pipe fitting 3 can be quick, the ring is pressed the time is reduced, work efficiency has been improved, support the second location portion 62 that keeps off piece 6 moreover and can carry out effective centre gripping to the outer wall of second pipe fitting 5, prevent that second pipe fitting 5 from sliding and deviating from in keeping silent at the ring pressure in-process, improve the crimping quality, the rejection rate has been reduced effectively.
As shown in fig. 5 to 6, in the present embodiment, the fixed mold assembly 1 includes a fixed mold 11 in an arc shape and two first pressing blocks 12 located inside the fixed mold 11 and movably connected with the fixed mold 11; the movable die assembly 2 comprises a movable die 21 in the shape of a circular arc and two second pressing blocks 22 which are positioned inside the movable die 21 and movably connected with the movable die 21. Still be equipped with the second elastic component 10 that can make both keep away from each other between the adjacent first compact heap 12, equally, also be equipped with the second elastic component 10 that can make both keep away from each other between the adjacent second compact heap 22, wherein, second elastic component 10 is reset spring, the both ends of this reset spring roof pressure respectively in the shrinkage pool 13 of the terminal surface of adjacent first compact heap 12 or adjacent second compact heap 22, specifically, under the non-chucking state or after the chucking is pressed, under the elastic force effect of second elastic component 10, two first compact heaps 12 and two second compact heaps 22 of card clamping ring 4 can be automatic keep away from each other for clamping ring 4 is in slightly open state, so that the smooth insertion of outside pipe fitting, convenient and fast. The two ends of the fixed die 11 are respectively hinged and fixed with the inner ends of the movable dies 21, the outer ends of the two movable dies 21 can be buckled together, the two first pressing blocks 12 and the two second pressing blocks 22 are driven to be buckled together by overcoming the elasticity of the second elastic piece 10, and a circular clamping and pressing ring 4 is formed, specifically, as shown in fig. 9 and 11, the inner wall surfaces of the first pressing blocks 12 and the second pressing blocks 22, which are contacted with an external pipe, are arc-shaped, the middle part of the inner wall surface is provided with an arc-shaped groove 100 which is recessed inwards, after the buckling of the clamping and pressing ring 4 is completed, the external pipe after the ring pressing is completed is provided with a circular flange 25, the inner cavity of the flange 25 is used for accommodating a circular sealing ring 24, and fig. 11 shows a structural schematic diagram of the ring pressing tool after the.
Further, the fixed die 11 is movably connected with the two first pressing blocks 12 through a first limiting stopper 14, the first limiting stopper 14 is attached to the side wall surface of the fixed die 11 and the side wall surface of the first pressing block 12, one end of the first limiting stopper 14 is fixedly arranged on the side wall of the fixed die 11 through a pin shaft, the other end of the first limiting stopper 14 is provided with a first movable hole 141, a first positioning pin 16 penetrates through the first movable hole 141, the first positioning pin 16 is fixedly connected with the side wall of the first pressing block 12, specifically, the first positioning pin 16 penetrates through the first pressing block 12, the end part of the first positioning pin 16 is exposed out of the side wall surface of the first pressing block 12 and is limited in the first movable hole 141, and thus, the two adjacent first pressing blocks 12 cannot be separated under the elastic action of the second elastic element 10; similarly, the movable die 21 and the second pressing block 22 are movably connected through the second limiting stopper 15, the second limiting stopper 15 is attached to the side wall surface of the movable die 21 and the side wall surface of the second pressing block 22, one end of the second limiting stopper 15 is fixedly arranged on the side wall of the movable die 21 through a pin shaft, the other end of the second limiting stopper 15 is provided with a second movable hole 151, a second positioning pin 17 penetrates through the second movable hole 151, the second positioning pin 17 is fixedly connected with the side wall of the second pressing block 22, specifically, the second positioning pin 17 penetrates through the second pressing block 22, the end of the second positioning pin 17 is exposed out of the side wall surface of the second pressing block 22 and is limited in the second movable hole 151, and thus two adjacent second pressing blocks 22 cannot be separated under the elastic force action of the second elastic member 10. Furthermore, the front side wall and the back side wall of the fixed die 11 and the movable die 21 of the ring pressing tool are both provided with a first limit stopper 14 and a second limit stopper 15, and the structure can enclose the first pressing block 12 and the second pressing block 22 inside the fixed die 11 and the movable die 21 respectively, so that the ring pressing tool is firmer in the using process, and the first pressing block 12 or the second pressing block 22 is not easy to fall off. Still further, first activity hole 141 and second activity hole 151 are the arc hole unanimous with the circumferencial direction of card clamp ring 4, at the ring pressure in-process, two adjacent first compact heap 12 or two adjacent second compact heap 22 can evenly contract along the direction in arc hole under the effect of surrounding power, the atress of outside pipe fitting is more even like this, the leakproofness is better after the ring pressure is connected, it is concrete, the arc length in this arc hole should be with the compression stroke looks adaptation of second elastic component 10, wherein, the arc length in arc hole can not the overlength, take place to drop when avoiding second elastic component 10 at non-ring pressure state.
As shown in fig. 6, in this embodiment, the first pressing block 12 is provided with a guide groove 18 on a side wall attached to the first limit stopper 14 and the second pressing block 22 is provided with a side wall attached to the second limit stopper 15, the blocking element 6 moves along the radial direction of the card pressing ring 4, the blocking element 6 is inserted into the guide groove 18, specifically, the blocking element 6 is a strip-shaped block, the guide groove 18 is a strip-shaped groove adapted to the strip-shaped block, the middle part of the strip-shaped block is further provided with a limit groove 63 in the same direction as the guide groove 18, the limit groove 63 is provided with a first elastic element 8 and a limit pin, the limit pin is arranged on the first pressing block 12 or the second pressing block 22, wherein the first elastic element 8 is a spring, one end of the spring is pressed against the limit pin, the other end of the spring is pressed against an inner wall of the limit groove 63 close to the side of the second positioning portion 62, so that the blocking element 6 always keeps a tendency close to the axis of the card pressing ring 4, in addition, the compression stroke of the spring is matched with the length of the limiting groove 63, so that the abutting piece 6 can be exposed out of the clamping ring 4 to limit the axial movement of the first pipe fitting 3 and clamp the outer wall surface of the second pipe fitting. Furthermore, the first positioning pin 16 and the limit pin penetrating through the first pressing block 12 are the same pin shaft; the limiting pin penetrating through the second pressing block 22 and the second positioning pin 17 are the same pin shaft, the structure of the ring pressing tool is simplified due to the installation arrangement, and the production cost is reduced.
More specifically, an arc surface consistent with the radian of the clamping and pressing ring 4 is formed on the end wall of the resisting part 6, and the arc surface is a second positioning part 62 for clamping the outer wall surface of the second pipe fitting 5; the length of the blocking piece 6 is matched with the length of the guide groove 18, so that during ring pressing operation, due to the blocking effect of the second pipe fitting 5, the blocking piece 6 can be contracted into the guide groove 18 in the state that the clamping and pressing ring 4 is buckled, and the second positioning portion 62 can be overlapped with the inner side arc surface of the clamping and pressing ring 4 to form a complete arc surface, so that after ring pressing is performed on an external pipe fitting, the ring pressing position of the external pipe fitting has good roundness and smoothness, and pits and wrinkles cannot occur, and fig. 7 to 8 respectively show the structural schematic diagrams of the state that the blocking piece 6 of the ring pressing tool is exposed out of the guide groove 18 and is contracted into the guide groove 18. Referring to fig. 4 again, the abutting member 6 is formed with a slope 64 at the intersection of the side wall facing the second pipe 5 and the end wall thereof, and the slope 64 is a chamfer facilitating smooth insertion of the second pipe 5 and having a guiding function.
In addition, the ring pressing tool further comprises an elastic clamping ring belt 19 which is arranged around the outer peripheries of the movable die 21 and the fixed die 11, and a jaw device 20 which is used for pressing the outer end of the movable die 21 and enabling the clamping ring 4 to be buckled. Referring to fig. 5, in this embodiment, the elastic clip ring band 19 is a circular arc-shaped strip band, two free ends of the elastic clip ring band are provided with limiting holes 191, the limiting holes 191 are arc-shaped holes arranged along the circular arc direction of the elastic clip ring band 19, and the elastic clip ring band 19 is connected with the two movable dies 21 through pins arranged in the arc-shaped holes. The elastic clamp ring belt 19 is arranged to protect the movable die 21 and the fixed die 11 from being damaged due to collision, the service life of the ring pressing tool is prolonged, when the elastic clamp ring belt 19 is in a non-ring pressing state, the elastic clamp ring belt 19 is in a slightly-opened state under the action of the elastic force of the second elastic piece 10, and the ring pressing tool is more flexible and labor-saving to operate when the ring pressing tool is opened and closed due to the arrangement of the arc-shaped holes in the elastic clamp ring belt 19. Referring to fig. 2 and 10, the jaw device 20 of the ring pressing tool and the movable die 21 are separately arranged, the jaw device includes two clamping portions 23 arranged oppositely, the end of the clamping portion 23 has a protruding portion 231 protruding into the jaw, and the outer end of the movable die 21 is provided with a recessed portion 211 adapted to the protruding portion 231. When the pipe fitting extruding device is used, a user can extrude the external pipe fitting at different positions and different angles, and the pipe fitting in the corner and the narrow space is greatly convenient to annularly press.
The ring pressing tool of the clamping and pressing type pipe fitting of the embodiment of the invention is used, firstly, the end part of a first pipe fitting 3 to be subjected to ring pressing is placed at a clamping and pressing ring 4 close to the ring pressing tool, then the first pipe fitting 3 is axially moved towards a resisting piece 6 at the clamping and pressing ring 4, due to the limiting action of the side wall of the resisting piece 6, the first pipe fitting 3 can be stopped and reaches a preset ring pressing position, then a second pipe fitting 5 is inserted into the first pipe fitting 3, after the second pipe fitting 5 is inserted into the preset placing position, the jaw device is used for directly pressing the outer end of a movable die 21 to complete ring pressing operation, and the second pipe fitting 5 can be clamped by the end wall of the resisting piece 6 in the radial direction in the ring pressing process, so that sliding or falling cannot occur. This kind of ring pressure instrument had both had the axial positioning function to first pipe fitting 3, had the radial card of second pipe fitting 5 again and held the function, and the user can treat the ring pressure pipe fitting when using and fix a position fast to the coming off of pipe fitting can not appear, greatly practiced thrift the time of ring pressure operation, improved work efficiency, effectively reduced the rejection rate.
Claims (10)
1. The utility model provides a ring pressure instrument of formula pipe fitting is pressed to card, includes cover half subassembly (1) and two at least movable mould subassemblies (2), the both ends of cover half subassembly (1) are articulated fixed with the inner of movable mould subassembly (2) respectively, and the outer end of two movable mould subassemblies (2) that are in the free end can the lock be in the same place for the inboard formation of cover half subassembly (1), movable mould subassembly (2) after the lock is annular is used for the card to press in the card clamping ring (4) in the first pipe fitting (3) outside of waiting to ring pressure, first pipe fitting (3) endotheca is equipped with and remains inserted second pipe fitting (5), its characterized in that: the clamping ring (4) is provided with a propping piece (6) which can stretch out and draw back along the radial direction of the clamping ring (4) and can be exposed out of the inner wall surface of the clamping ring (4), and the side wall of the propping piece (6) facing one side of the first pipe fitting (3) forms a first positioning part (61) which can limit the movement of the first pipe fitting (3) in the axial direction;
the fixed die assembly (1) comprises a fixed die (11) in an arc shape and at least one first pressing block (12) which is positioned on the inner side of the fixed die (11) and movably connected with the fixed die (11), and the movable die assembly (2) comprises a movable die (21) in an arc shape and at least one second pressing block (22) which is positioned on the inner side of the movable die (21) and movably connected with the movable die (21);
the fixed die (11) is movably connected with the first pressing block (12) through a first limiting stopper (14), the first limiting stopper (14) is attached to the side wall surface of the fixed die (11) and the side wall surface of the first pressing block (12), the movable die (21) is movably connected with the second pressing block (22) through a second limiting stopper (15), and the second limiting stopper (15) is attached to the side wall surface of the movable die (21) and the side wall surface of the second pressing block (22);
the side wall, attached to the first limiting stopper (14), of the first pressing block (12) and the side wall, attached to the second limiting stopper (15), of the second pressing block (22) are respectively provided with a guide groove (18) for the abutting stopper (6) to move along the radial direction of the clamping ring (4), and the abutting stopper (6) is inserted into the guide groove (18).
2. The ring crush tool for pipe fittings according to claim 1, wherein: the supporting and connecting part (6) is connected with a first elastic part (8), the first elastic part (8) enables the supporting and connecting part (6) to always keep a trend close to the axis direction of the clamping ring (4), and a second positioning part (62) capable of clamping the outer wall surface of the second pipe fitting (5) is formed on the end wall of the supporting and connecting part (6) facing the second pipe fitting (5).
3. The ring crush tool for pipe fittings according to claim 2, wherein: second elastic pieces (10) capable of enabling the first pressing blocks (12) and the second pressing blocks (22) to be far away from each other are arranged between the adjacent first pressing blocks (12) or between the adjacent second pressing blocks (22), and two end parts of each second elastic piece (10) are respectively pressed in concave holes (13) of the end faces of the adjacent first pressing blocks (12) or the adjacent second pressing blocks (22); the both ends of cover half (11) are articulated fixedly with the inner of movable mould (21) respectively, and the outer end of two movable moulds (21) can the lock be in the same place to the elasticity lock that second elastic component (10) was overcome in drive first compact heap (12) and second compact heap (22) is in the same place, forms clamping ring (4).
4. The ring crush tool for pipe fittings according to claim 3, wherein: one end of the first limiting stopper (14) is fixedly arranged on the side wall of the fixed die (11), the other end of the first limiting stopper (14) is provided with a first movable hole (141), a first positioning pin (16) penetrates through the first movable hole (141), and the first positioning pin (16) is fixedly connected with the side wall of the first pressing block (12);
one end of the second limiting stopper (15) is fixedly arranged on the side wall of the movable die (21), the other end of the second limiting stopper (15) is provided with a second movable hole (151), a second positioning pin (17) penetrates through the second movable hole (151), and the second positioning pin (17) is fixedly connected with the side wall surface of the second pressing block (22).
5. The ring crush tool for pipe fittings according to claim 4, wherein: the first movable hole (141) and the second movable hole (151) are arc-shaped holes which are consistent with the circumferential direction of the clamping ring (4), and the arc length of each arc-shaped hole is matched with the compression stroke of the second elastic piece (10).
6. The ring-pressing tool of a pipe fitting according to claim 4 or 5, wherein: the middle of the blocking piece (6) is also provided with a limiting groove (63) which is consistent with the direction of the guide groove (18), a limiting pin and the first elastic piece (8) are arranged in the limiting groove (63), the limiting pin penetrates through the first pressing block (12) or the second pressing block (22), and two ends of the first elastic piece (8) are respectively pressed on the limiting pin and the inner wall of the limiting groove (63) close to one side of the second positioning part (62), so that the blocking piece (6) always keeps the trend of being close to the axis direction of the clamping ring (4).
7. The ring crush tool for pipe fittings according to claim 6, wherein: the first elastic piece (8) is a spring, and the compression stroke of the spring is matched with the length of the limiting groove (63), so that the abutting piece (6) is provided with a first state in which the clamping ring (4) is exposed out for limiting the axial movement of the first pipe fitting (3).
8. The ring crush tool for pipe fittings according to claim 7, wherein: an arc surface consistent with the radian of the clamping ring (4) is formed on the end wall of the abutting part (6), and the arc surface is the second positioning part (62); the length of the blocking piece (6) is matched with that of the guide groove (18), so that the second positioning part (62) is overlapped with the inner side arc surface of the clamping ring (4) when the blocking piece (6) is in a buckling state of the clamping ring (4).
9. The ring crush tool for pipe fittings according to claim 8, wherein: the first positioning pin (16) and a limiting pin penetrating through the first pressing block (12) are the same pin shaft; the second positioning pin (17) and a limiting pin penetrating through the second pressing block (22) are the same pin shaft.
10. The ring crush tool for pipe fittings according to claim 9, wherein: the ring pressing tool further comprises a jaw device (20) used for extruding the outer end of the movable die (21) and enabling the clamping ring (4) to be buckled, the jaw device (20) comprises two oppositely-arranged clamping portions (23), protruding portions (231) protruding into the jaws are arranged at the end portions of the clamping portions (23), and recessed portions (211) matched with the protruding portions (231) are arranged at the outer end of the movable die (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810403627.XA CN108620498B (en) | 2018-04-28 | 2018-04-28 | Ring pressing tool for clamping and pressing type pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810403627.XA CN108620498B (en) | 2018-04-28 | 2018-04-28 | Ring pressing tool for clamping and pressing type pipe fitting |
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| Publication Number | Publication Date |
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| CN108620498A CN108620498A (en) | 2018-10-09 |
| CN108620498B true CN108620498B (en) | 2020-11-03 |
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| CN201810403627.XA Active CN108620498B (en) | 2018-04-28 | 2018-04-28 | Ring pressing tool for clamping and pressing type pipe fitting |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109954791A (en) * | 2019-03-20 | 2019-07-02 | 常州市盛士达汽车空调有限公司 | Pipe fitting crimping device |
| CN110052991A (en) * | 2019-05-24 | 2019-07-26 | 成都川力美亚管业有限公司 | A kind of ring pressure pipe fitting tool of stable connection |
| CN110640032B (en) * | 2019-10-28 | 2024-05-10 | 中铁高铁电气装备股份有限公司 | Radial crimping device and method for contact network management type parts |
| CN110893603A (en) * | 2019-12-18 | 2020-03-20 | 玉环长红工具有限公司 | Chain type ring die crimping device and ring die assembly with same |
| CN111085962A (en) * | 2020-01-03 | 2020-05-01 | 广州市锐铭金属制品有限公司 | Six-petal ring pressure pipe fitting crimping device |
| CN112017856A (en) * | 2020-08-28 | 2020-12-01 | 安阳凯地电磁技术有限公司 | Guide forming method of electromagnetic ferromagnetic core tube |
| CN115008399B (en) * | 2021-03-03 | 2023-07-25 | 中国航发商用航空发动机有限责任公司 | Extrusion tool |
| CN117463918A (en) * | 2023-11-13 | 2024-01-30 | 无锡上京精密科技有限公司 | Tungsten wire rope hot end ball head riveting method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9216369U1 (en) * | 1992-12-02 | 1993-02-04 | Novopress GmbH Pressen und Presswerkzeuge & Co KG, 4040 Neuss | Press tool |
| DE102006050427A1 (en) * | 2006-08-22 | 2008-02-28 | Gustav Klauke Gmbh | Method for pressing a press fitting and pressing tool for this purpose |
| KR100762293B1 (en) * | 2007-03-30 | 2007-10-01 | 주식회사 다성테크 | Pipe crimping device |
| KR20110005413U (en) * | 2009-11-25 | 2011-06-01 | 주식회사 서원기술 | Press type connecting tool for pipe |
| KR101575896B1 (en) * | 2014-06-09 | 2015-12-08 | 주식회사 서원기술 | A connecting device for piping works |
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Address after: A10, Plant 5 #, No. 96, Hibiscus Road, High tech Zone, Ningbo, Zhejiang 315800 Patentee after: ZHEJIANG KANGPASI FLUID TECHNIQUE Co.,Ltd. Address before: 315040 Gate 5, No. 1 Workshop, No. 96, Hibiscus Road, High tech Zone, Ningbo, Zhejiang Patentee before: ZHEJIANG COMPRESSED FLUID TRANSMISSION ENGINEERING Co.,Ltd. |
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