CN116237435A - Pipe fitting closing-in equipment - Google Patents

Abstract

The application relates to the field of pipe fitting machining equipment, in particular to pipe fitting necking equipment, which comprises a power clamping jaw, a clamping jaw rotating assembly, an electromagnetic heating assembly, a propping receiving opening assembly and a base; the power clamping jaw is arranged on the base and can clamp the pipe fitting, the clamping jaw rotating assembly is connected with the power clamping jaw, the electromagnetic heating assembly is suitable for heating the pipe fitting, and the abutting receiving port assembly can apply an abutting force to the pipe fitting at the axis of the pipe fitting; the electromagnetic heating assembly comprises a first moving seat, a second moving seat, a third moving seat, a first coil and a second coil, wherein the first moving seat is arranged on the base and can be close to or far away from the power clamping jaw, the first coil is arranged on the second moving seat, the second coil is arranged on the third moving seat, the second moving seat and the third moving seat are both arranged on the first moving seat and can horizontally move along the direction perpendicular to the length of the base, so that the first coil and the second coil are close to or far away from each other. The present application has the effect of being able to accommodate the dimensions of different tubulars.

Description

Pipe fitting closing-in equipment

Technical Field

The application belongs to pipe fitting processing equipment field, especially relates to a pipe fitting binding off equipment.

Background

A pipe sealer is a device used to gather or seal the ends of a pipe.

Generally, a pipe sealing machine is used for bundling or sealing a port of a metal pipe, and before sealing, a pipe opening is generally required to be heated, so that when a subsequent abutting receiving opening assembly abuts against the pipe opening, the pipe opening is easy to deform, and the pipe opening is conveniently bundled or sealed.

In the prior art, the pipe orifice of the pipe fitting made of the metal material is heated usually in an electromagnetic induction mode, the heating speed is high, but the shape of the electromagnetic induction coil is not easy to change, so that the diameter of the electromagnetic coil is fixed, the diameter range of the pipe fitting capable of being matched is smaller, therefore, different pipe fitting sealing machines are usually required to be used for sealing the pipe fittings with different diameters, the universality of the pipe fitting sealing machine is low, and the equipment cost can be increased.

In view of this, it is desirable to provide a tube necking apparatus.

Disclosure of Invention

In order to overcome the defects, the application provides pipe fitting closing equipment.

The pipe fitting closing-in equipment provided by the application adopts the following technical scheme.

A pipe fitting closing-in device comprises a power clamping jaw, a clamping jaw rotating assembly, an electromagnetic heating assembly, a supporting receiving opening assembly and a base; the power clamping jaw is arranged on the base and is suitable for clamping a pipe fitting, the clamping jaw rotating assembly is connected with the power clamping jaw and can drive the power clamping jaw to rotate, the electromagnetic heating assembly is suitable for heating the pipe fitting, and the abutting receiving opening assembly is suitable for applying an abutting force to the pipe fitting towards the axis of the pipe fitting; the electromagnetic heating assembly comprises a first moving seat, a second moving seat, a third moving seat, a first coil and a second coil, wherein the first moving seat is movably arranged on the base and can be close to or far away from the power clamping jaw, the first coil is arranged on the second moving seat, the second coil is arranged on the third moving seat, the second moving seat and the third moving seat are both arranged on the first moving seat and can horizontally move along the direction perpendicular to the length of the base, so that the first coil and the second coil can be close to or far away from each other.

By adopting the technical scheme, the power clamping jaw can clamp the pipe fitting by itself, and the two coils can be mutually close to or far away from each other, so that the distance between the two coils can be changed, and the heating device can be suitable for heating the end parts of metal pipe fittings with different diameters, so that the end parts of the metal pipe fittings can be conveniently sealed; and the two coils can be driven by the first movable seat to be close to or far away from the metal pipe fitting, so that the coils can be close to the metal pipe fitting to heat the end part of the metal pipe fitting, and the coils can return to the original position after the heating is finished, so that the abutting of the abutting port assembly on the port of the metal pipe fitting is facilitated, and the port of the metal pipe fitting is applied with a force towards the axis of the metal pipe fitting, so that the port of the metal pipe fitting deforms towards the axis of the metal pipe fitting, and the reduction or sealing of the port is realized.

Specifically, a base screw pair and a base screw driving piece are arranged on the base, and the base screw pair is in transmission connection with the base screw driving piece; the bottom surface of the first movable seat is provided with a first movable seat screw hole of a first movable seat rail matched with the base screw pair.

By adopting the technical scheme, the electromagnetic heating assembly can be close to or far away from the port of the metal pipe fitting.

Specifically, a first screw pair, a second movable seat driving piece and a third movable seat driving piece are arranged on the first movable seat; the first screw pair and the second screw pair extend along the direction vertical to the length of the base, the first screw pair is in transmission connection with the second movable seat driving piece, and the second screw pair is in transmission connection with the third movable seat driving piece; the second moving seat is provided with a second moving seat threaded hole matched with the first screw pair, and the third moving seat is provided with a third moving seat threaded hole matched with the second screw pair.

Through adopting above-mentioned technical scheme, can realize carrying out independent regulation to first coil and second coil to can realize the regulation of the interval between first coil and the second coil, with can adjust the interval between first coil and the second coil according to the diameter of pipe fitting, make electromagnetic heating subassembly be suitable for heating the pipe fitting of different diameters.

Specifically, the first coil comprises a first coil power connection end and a first coil working part, and the second coil comprises a second coil power connection end and a second coil working part; the center of the first coil working part, the center of the second coil working part and the rotation axis of the power clamping jaw are positioned on the same horizontal plane.

By adopting the technical scheme, the vertical heights of the first coil and the second coil do not need to be changed when the diameter of the pipe fitting is changed.

Specifically, the power clamping jaw comprises a rotating shaft body, a sleeve, a plurality of clamping jaw bodies and a jaw body driver, and the clamping jaw rotating assembly comprises a clamping jaw bearing seat and a driver; the rotating shaft body is internally provided with a penetrating cavity penetrating through the rotating shaft body in the length direction, and is rotatably connected to the clamping jaw bearing seat and in transmission connection with the driver; the plurality of clamping jaw bodies are arranged on the rotating shaft body at equal intervals along the circumferential direction of the rotating shaft body, and the jaw body driver can drive each clamping jaw body to be close to or far away from the axis of the rotating shaft body.

By adopting the technical scheme, the power clamping jaw can be opened and clamped.

Specifically, a driving medium accommodating cavity and a plurality of clamping jaw moving cavities are formed between the outer wall of the shaft body of the rotating shaft body and the side wall of the penetrating cavity, each clamping jaw moving cavity is arranged to extend from the outer wall of the shaft body to the driving medium accommodating cavity, the rotating shaft body further comprises a first annular groove, a second annular groove, a medium injection channel and a medium output channel, wherein the first annular groove and the second annular groove are formed on the outer wall of the shaft body, and the medium injection channel and the medium output channel are arranged in the rotating shaft body; the first annular groove is connected with the driving medium accommodating cavity through the medium injection channel, the second annular groove is connected with the clamping jaw moving cavity through the medium output channel, the sleeve is rotatably sleeved on the rotating shaft body, the sleeve is matched with the first annular groove to form a first annular sealing cavity, the sleeve is matched with the second annular groove to form a second annular sealing cavity, and a medium supply port is formed in the position, corresponding to the first annular sealing cavity and the second annular sealing cavity, of the sleeve.

Through adopting above-mentioned technical scheme, can keep the sleeve not rotate at the pivoted in-process of axis of rotation body to can supply driving medium to first annular seal chamber or second annular seal chamber through the medium feed inlet, thereby can realize supplying driving medium to driving medium holds chamber or medium output channel in order to realize opening and closure of power clamping jaw.

Specifically, the clamping jaw body comprises a clamping part and a moving part; the moving part is arranged in the clamping jaw moving cavity and can move along the clamping jaw moving cavity, a piston structure is arranged on the moving part, the clamping jaw moving cavity is divided into an extending cavity and a contracting cavity through the piston structure, the medium output channel is communicated with the contracting cavity, and the extending cavity is connected with the driving medium accommodating cavity.

By adopting the technical scheme, the power clamping jaw can be opened and closed.

Specifically, the butt receiving port assembly comprises a fixed seat, a rotating driving unit, a butt driving unit and a butt unit, wherein the rotating seat is rotatably connected with the fixed seat, the rotating driving unit is fixed on the fixed seat and is in transmission connection with the rotating seat, the butt unit and the butt driving unit are both arranged on the rotating seat, and the butt driving unit is connected with the butt unit so as to drive the butt unit to be in butt connection with the pipe fitting clamped on the power clamping jaw.

By adopting the technical scheme, the abutting unit can apply the abutting force towards the axis of the pipe fitting to the port of the pipe fitting, so that the port of the pipe fitting can deform towards the axis of the pipe fitting, and the port of the pipe fitting can be converged or closed.

Specifically, the rotating seat comprises a rotating shaft, and the rotating shaft is rotatably connected with the fixed seat; the rotary driving unit comprises an air cylinder and a rack, the air cylinder can drive the rack to move, a gear is connected to the rotary shaft, and the gear is meshed with the rack; the abutting unit is provided with a roll shaft so as to be abutted with the pipe fitting through the roll shaft.

Through adopting above-mentioned technical scheme, can realize rotating the rotation of seat, and through roller and pipe fitting butt for the pipe fitting is at pivoted in-process, and the roller can carry out synchronous rotation with the pipe fitting, thereby can prevent that the pipe fitting from being by the part of butt and the frictional force between the butt unit too big, causes the circumstances such as pipe fitting damage, can reduce the defective rate.

Specifically, still include positioning unit, positioning unit includes locating lever and locating lever driving piece, the locating lever driving piece with pedestal connection, the locating lever with the locating lever driving piece is connected, and can drive the locating lever removes, so that when the locating lever stretches out, the locating lever can with the tip butt of pipe fitting.

By adopting the technical scheme, the pipe fitting is convenient to position.

In summary, the present application includes the following beneficial technical effects:

1. the power clamping jaw can clamp the pipe fitting by itself, and the two coils can be mutually close to or far away from each other, so that the distance between the two coils can be changed, and the power clamping jaw can be suitable for heating the end parts of metal pipe fittings with different diameters, so that the end parts of the metal pipe fittings can be conveniently sealed;

2. the two coils can be driven by the first moving seat to approach or separate from the metal pipe fitting, so that the coil can heat the end part of the metal pipe fitting when approaching the metal pipe fitting, and the coil can return to the original position after heating is finished, so that the abutting receiving port assembly is abutted against the port of the metal pipe fitting conveniently, and force towards the axis of the metal pipe fitting is applied to the port of the metal pipe fitting, so that the port of the metal pipe fitting deforms towards the axis of the metal pipe fitting, and the reduction or sealing of the port is realized;

3. the sleeve can be kept not to rotate in the rotating process of the rotating shaft body, and driving medium can be supplied to the first annular sealing cavity or the second annular sealing cavity through the medium supply port, so that driving medium can be supplied to the driving medium accommodating cavity or the medium output channel, the opening and closing of the power clamping jaw can be realized, the opening and closing movement of the power clamping jaw is larger, and the power clamping jaw can adapt to pipe fittings with more sizes.

Drawings

Fig. 1 is a schematic perspective view of a pipe necking apparatus of the present application.

Fig. 2 is a top view of the tube necking apparatus of the present application.

Fig. 3 is an enlarged view of region B in fig. 2.

Fig. 4 is a side view of the tube necking apparatus of the present application.

Fig. 5 is a cross-sectional view taken along the direction A-A in fig. 2.

Fig. 6 is an enlarged view of the region D in fig. 5.

Fig. 7 is a sectional view in the direction C-C of fig. 2.

Fig. 8 is a sectional view in the direction E-E of fig. 7.

Reference numerals: 1. a power clamping jaw; 11. a rotating shaft body; 111. a penetrating cavity is formed; 112. a driving medium accommodating chamber; 113. a jaw moving chamber; 114. a first annular groove; 115. a second annular groove; 116. a medium injection channel; 117. a media output channel; 118. sealing ring grooves; 12. a sleeve; 121. a medium supply port; 13. a jaw claw body; 131. a clamping part; 132. a moving part; 1321. a piston structure; 2. a jaw rotation assembly; 21. clamping jaw bearing seat; 22. a driver; 3. an electromagnetic heating assembly; 31. a first movable seat; 311. a first screw pair; 312. a second screw pair; 313. a second movable seat driving member; 314. a third movable seat driving member; 32. a second movable seat; 33. a third movable seat; 34. a first coil; 35. a second coil; 4. a butt receiving port assembly; 41. a fixing seat; 42. a rotating seat; 421. a rotating shaft; 423. a gear; 43. a rotation driving unit; 431. a cylinder; 432. a rack; 44. abutting against the driving unit; 45. an abutting unit; 451. a roll shaft; 5. a base; 51. a base screw pair; 52. a base screw drive; 6. a pipe fitting; 7. a positioning unit; 71. a positioning rod; 72. a positioning rod driving member; 8. lip seals.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-8.

The application discloses pipe fitting binding off equipment.

Referring to fig. 1 and 2, a pipe fitting 6 closing device comprises a power clamping jaw 1, a clamping jaw rotating assembly 2, an electromagnetic heating assembly 3, a butt receiving opening assembly 4 and a base 5; the power clamping jaw 1 is arranged on the base 5 and is suitable for clamping a pipe fitting 6, the clamping jaw rotating assembly 2 is connected with the power clamping jaw 1 and can drive the power clamping jaw 1 to rotate, so that the pipe fitting 6 clamped on the power clamping jaw 1 can be driven to rotate by taking the axial direction of the power clamping jaw 1 as a rotating shaft 421, the electromagnetic heating assembly 3 is suitable for heating the pipe fitting 6, the abutting receiving port assembly 4 is suitable for applying an abutting force towards the axis of the pipe fitting 6 to the pipe fitting 6, so that the port of the pipe fitting 6 can deform towards the axis of the pipe fitting 6, and the port of the pipe fitting 6 is bundled or closed.

Specifically, as shown in fig. 1 and 3, the electromagnetic heating assembly 3 may be configured to include a first moving seat 31, a second moving seat 32, a third moving seat 33, a first coil 34 and a second coil 35, where the first moving seat 31 is movably disposed on the base 5 and can be close to or far away from the power clamping jaw 1, the first coil 34 is disposed on the second moving seat 32, the second coil 35 is disposed on the third moving seat 33, and the second moving seat 32 and the third moving seat 33 are both disposed on the first moving seat 31 and can horizontally move along a direction perpendicular to a length of the base 5, so that the first coil 34 and the second coil 35 can be close to or far away from each other, when a diameter of a pipe fitting 6 to be processed is large, the first coil 34 and the second coil 35 can be close to each other, when the diameter of the pipe fitting 6 to be processed is large, the first coil 34 and the second coil 35 can be close to each other, so that the distance between the first coil 34 and the second coil 35 can be reduced, the first coil 35 and the second coil 35 can be well located on the outer side of the pipe fitting 6 can be more easily replaced, and the electromagnetic heating assembly can be more suitable for the pipe fitting 6, and the pipe fitting can be replaced without changing the electromagnetic heating assembly 6, and the pipe fitting can be more easily.

Specifically, as shown in fig. 3, the base 5 is provided with a base screw pair 51 and a base screw driving member 52, the base screw pair 51 is disposed on a bearing seat and is in transmission connection with the base screw driving member 52, the base screw driving member 52 may be a driving motor, the bottom surface of the first moving seat 31 is provided with a first moving seat threaded hole of a first moving seat 31 rail matched with the base screw pair 51, in addition, as shown in fig. 3, a form of matching a sliding block with a limiting groove can be adopted between the first moving seat 31 and the base 5 to limit the moving direction of the first moving seat 31, so that the first moving seat 31 can drive the coil to be close to or far away from the metal pipe fitting 6 clamped on the power clamping jaw 1, so as to perform induction heating on the metal pipe fitting 6 when approaching the metal pipe fitting 6, and drive the coil to be far away from the metal pipe fitting 6 when heating the metal pipe fitting 6 to a set temperature, so as to retract or close a port of the pipe fitting 6 by the abutting receiving port assembly 4.

Further, a first screw pair 311, a second screw pair 312, a second movable seat driver 313, and a third movable seat driver 314 are provided on the first movable seat 31; the first screw pair 311 and the second screw pair 312 extend along the direction perpendicular to the length of the base 5 (that is, along the axial direction perpendicular to the pipe fitting 6 after the pipe fitting 6 is clamped on the power clamping jaw 1), the first screw pair 311 is in transmission connection with the second movable seat driving piece 313, the second screw pair 312 is in transmission connection with the third movable seat driving piece 314, the second movable seat driving piece 313 and the third movable seat driving piece 314 can be driving motors, the second movable seat 32 is provided with a second movable seat threaded hole matched with the first screw pair 311, the third movable seat 33 is provided with a third movable seat threaded hole matched with the second screw pair 312, and the driving motors can drive the corresponding first screw pair 311 and the second screw pair 312 to rotate, so that independent movement adjustment of the second movable seat 32 and the third movable seat 33 is realized, and as shown in fig. 3, the second movable seat 32 and the first movable seat 31 and the third movable seat 33 and the second movable seat 32 can be limited by adopting a form of matching a sliding block and a limit groove, so that the second movable seat 32 and the third movable seat 33 can be limited by the sliding block and the third movable seat 32 along the axial direction perpendicular to the axial direction of the pipe fitting 6 after the pipe fitting 6 is clamped on the power clamping jaw 1.

Further, referring to fig. 1, in an embodiment of the pipe fitting 6 closing-in apparatus of the present application, the first coil 34 includes a first coil power receiving end and a first coil working portion connected to a power source, the second coil 35 includes a second coil power receiving end and a second coil working portion connected to the power source, and the first coil 34 is fixed on the second moving seat 32 through a bracket, and the second coil 35 is fixed on the third moving seat 33 through a bracket, and the center of the first coil working portion, the center of the second coil working portion and the rotation axis of the power clamping jaw 1 are on the same horizontal plane, that is, when the diameter of the pipe fitting 6 is to be changed, there is no need to change the vertical heights of the first coil 34 and the second coil 35, so that the operation is more convenient.

Further, referring to fig. 4 and 5, in one embodiment of the pipe fitting 6 crimping apparatus of the present application, the power jaw 1 includes a rotating shaft 11, a sleeve 12, a plurality of jaw jaws 13 (as shown in fig. 6), and a jaw driver, the jaw rotating assembly 2 includes a jaw bearing housing 21 and a driver 22; the rotating shaft body 11 is provided with a penetrating cavity 111 penetrating through the rotating shaft body 11 in the length direction, the rotating shaft body 11 of the rotating shaft body 11 is rotatably connected to the clamping jaw bearing seat 21 and is in transmission connection with the driver 22, specifically, the rotating shaft 421 body 11 comprises three sections, the middle section of the rotating shaft 421 body 11 is connected to the clamping jaw bearing seat 21, and the clamping jaw body 13 is connected to the clamping section of the rotating shaft 421 body 11.

The transmission section of the rotary shaft 421 body 11 can be provided as a belt wheel structure and can be connected with the driver 22 (such as a driving motor) in a belt transmission manner, so that the rotary shaft 421 body can rotate under the driving of the driver 22 and can drive the pipe fitting 6 clamped on the power clamping jaw 1 to rotate. The plurality of jaw claw bodies 13 are arranged on the clamping section of the rotating shaft 421 body 11 at equal intervals along the circumferential direction of the rotating shaft 421 body 11, and the claw body driver can drive each jaw claw body 13 to be close to or far away from the axis of the rotating shaft 421 body 11 so as to realize the opening and clamping of the power jaws.

Specifically, referring to fig. 6, in an embodiment of the pipe fitting 6 necking-in device of the present application, a driving medium accommodating cavity 112 and a plurality of jaw moving cavities 113 are formed between an outer wall of a shaft body of the rotary shaft 421 body 11 and a side wall of the penetrating cavity 111, each jaw moving cavity 113 is configured to extend from the outer wall of the shaft body to the driving medium accommodating cavity 112, the rotary shaft 421 body 11 further includes a first annular groove 114, a second annular groove 115 formed on the outer wall of the shaft body, and a medium injection channel 116 and a medium output channel 117 provided in the rotary shaft 421 body 11.

The first annular groove 114 is connected with the driving medium accommodating cavity 112 through the medium injection channel 116, the second annular groove 115 is connected with the clamping jaw moving cavity 113 through the medium output channel 117, the sleeve 12 is rotatably sleeved on the rotating shaft 421 body 11 through a bearing, the sleeve 12 and the first annular groove 114 are matched to form a first annular sealing cavity, the sleeve 12 and the second annular groove 115 are matched to form a second annular sealing cavity, and a medium supply port 121 is formed in the position, corresponding to the first annular sealing cavity and the second annular sealing cavity, of the sleeve 12.

Further, the jaw body 13 includes a clamping portion 131 and a moving portion 132, the moving portion 132 is disposed in the jaw moving cavity 113 and can move along the jaw moving cavity 113, a piston structure 1321 is disposed on the moving portion 132 to divide the jaw moving cavity 113 into an extended cavity and a contracted cavity via the piston structure 1321, the medium output channel 117 is communicated with the contracted cavity, the extended cavity is connected with the driving medium accommodating cavity 112, and it should be noted that a limit ring is required to be disposed at an end of the jaw moving cavity 113 away from the driving medium accommodating cavity 112 to ensure that the jaw body 13 cannot fall from the rotating shaft 421, and as shown in fig. 6, when a portion of the jaw body 13 where the clamping portion 131 and the moving portion 132 are connected abuts against an outer wall of the rotating shaft 421, the piston structure 1321 on the moving portion 132 should still be disposed in the jaw moving cavity 113 to prevent the jaw moving cavity 113 from being strung with the driving medium accommodating cavity 112.

In the process of rotating the rotating shaft 421, the sleeve 12 can be kept in a non-rotating state through the connection of the limit rod and the base 5 or other fixed objects, so that the driving medium can be hydraulic oil to be supplied into the corresponding first annular sealing cavity or the second annular sealing cavity through the medium supply port 121, and thus the hydraulic oil can be supplied into the driving medium accommodating cavity 112 (extending cavity) or the contracting cavity, and the claw body driver can be set as an oil pump to realize oil supply; the clamping jaws tighten the clamping tube 6 when hydraulic oil is supplied into the contraction chamber, and open the clamping jaws unclamp the tube 6 when hydraulic oil is supplied into the driving medium accommodating chamber 112 (the extension chamber).

It should be noted that, taking the setting of four jaw claw bodies 13 as an example, four jaw moving cavities 113 are required to be set, and four medium output channels 117 are set to be connected with the corresponding jaw moving cavities 113 (shrinkage cavities), so that the oil inlet amount in each shrinkage cavity is ensured to be consistent, and the center of the clamped pipe fitting 6 and the center of the rotation shaft 421 body 11 can be ensured to have higher centering; in addition, in order to further reduce the possibility of occurrence of cavity-crossing, as shown in fig. 6, a sealing ring groove 118 is further provided on the outer wall of the rotary shaft 421 body 11, so that the sealing ring groove 118 forms a sandwich-cake-shaped ring groove group with the first annular groove 114 and the second annular groove 115, and the ring groove group is arranged from one end to the other end in the order of the sealing ring groove 118, the first annular groove 114, the sealing ring groove 118, the second annular groove 115 and the sealing ring groove 118, and lip seals 8 are provided in each sealing ring groove 118 to ensure that the cavity-crossing between the first annular sealing cavity and the second annular sealing cavity is not easy.

Further, referring to fig. 7 and 8, in an embodiment of the pipe fitting 6 closing apparatus of the present application, the abutting port assembly 4 includes a fixing seat 41, a rotating seat 42, a rotating driving unit 43, an abutting driving unit 44 and an abutting unit 45, the rotating seat 42 is rotatably connected with the fixing seat 41, the rotating driving unit 43 is fixed on the fixing seat 41 and is in transmission connection with the rotating seat 42, the abutting unit 45 and the abutting driving unit 44 are both disposed on the rotating seat 42, the abutting driving unit 44 is connected with the abutting unit 45 so as to be capable of driving the abutting unit 45 to abut against the pipe fitting 6 clamped on the power clamping jaw 1, the abutting unit 45 can apply an abutting force towards the axis of the pipe fitting 6 to the port of the pipe fitting 6, and therefore the port of the pipe fitting 6 can deform towards the axis of the pipe fitting 6, and thus the port of the pipe fitting 6 can be closed or bundled.

Specifically, referring to fig. 7 and 8, in one embodiment of the pipe fitting 6 necking apparatus of the present application, the rotation seat 42 includes a rotation shaft 421, and the rotation shaft 421 is rotatably connected to the fixing seat 41; the rotation driving unit 43 includes a cylinder 431 and a rack 432, the cylinder 431 can drive the rack 432 to move, the rotation shaft 421 is connected with a gear 423, and the gear 423 is meshed with the rack 432, so that the rack 432 can drive the rotation seat 42 to rotate when the cylinder 431 pushes the rack 432 to move; in addition, the roller 451 is provided on the abutting unit 45 so as to abut against the pipe fitting 6 via the roller 451, so that the roller 451 can rotate synchronously with the pipe fitting 6 during rotation of the pipe fitting 6, thereby preventing the pipe fitting 6 from being damaged due to excessive friction between the abutting portion of the pipe fitting 6 and the abutting unit 45, and reducing the defective rate.

Further, referring to fig. 1, in an embodiment of the pipe fitting 6 closing device of the present application, the pipe fitting 6 closing device further includes a positioning unit 7, where the positioning unit 7 may include a positioning rod 71 and a positioning rod driving member 72, where the positioning rod driving member 72 is connected with the base 5, or as shown in fig. 1, the positioning rod driving member 72 is disposed on a jaw bearing seat, the positioning rod 71 is connected with the positioning rod driving member 72, the positioning rod driving member 72 is connected on the jaw bearing seat through an extending rod, the positioning rod driving member 72 is configured to be capable of driving the positioning rod 71 to move, and when the positioning rod 71 extends, the positioning rod 71 can be abutted with an end portion of the pipe fitting 6, so as to implement positioning of the pipe fitting 6, and facilitate operation.

The implementation principle of the pipe fitting 6 closing-in equipment in the embodiment of the application is as follows: the power clamping jaw 1 can clamp the pipe fitting 6 by itself, and the two coils can be mutually close to or far away from each other, so that the distance between the two coils can be changed, and the heating device can be suitable for heating the end parts of the metal pipe fitting 6 with different diameters, so that the end parts of the metal pipe fitting 6 can be conveniently sealed; and the two coils can be driven by the first moving seat 31 to be close to or far away from the metal pipe fitting 6, so that the coils can be close to the metal pipe fitting 6 to heat the end part of the metal pipe fitting 6, and after heating, the coils can return to the original position to conveniently support the port of the receiving port assembly 4 to be abutted to the port of the metal pipe fitting 6, and force towards the axis of the metal pipe fitting 6 is applied to the port of the metal pipe fitting 6, so that the port of the metal pipe fitting 6 deforms towards the axis of the metal pipe fitting 6, and the reduction or sealing of the port is realized.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. A pipe fitting necking-in device which is characterized in that: the device comprises a power clamping jaw (1), a clamping jaw rotating assembly (2), an electromagnetic heating assembly (3), a propping receiving port assembly (4) and a base (5); the power clamping jaw (1) is arranged on the base (5) and is suitable for clamping a pipe fitting (6), the clamping jaw rotating assembly (2) is connected with the power clamping jaw (1) and can drive the power clamping jaw (1) to rotate, the electromagnetic heating assembly (3) is suitable for heating the pipe fitting (6), and the abutting receiving opening assembly (4) is suitable for applying an abutting force to the pipe fitting (6) towards the axis of the pipe fitting (6);

the electromagnetic heating assembly (3) comprises a first movable seat (31), a second movable seat (32), a third movable seat (33), a first coil (34) and a second coil (35), wherein the first movable seat (31) is movably arranged on the base (5) and can be close to or far away from the power clamping jaw (1), the first coil (34) is arranged on the second movable seat (32), the second coil (35) is arranged on the third movable seat (33), the second movable seat (32) and the third movable seat (33) are both arranged on the first movable seat (31) and can horizontally move along the direction perpendicular to the length of the base (5), so that the first coil (34) and the second coil (35) can be mutually close to or far away from each other.

2. The pipe necking apparatus of claim 1 wherein: the base (5) is provided with a base screw pair (51) and a base screw driving piece (52), and the base screw pair (51) is in transmission connection with the base screw driving piece (52); the bottom surface of the first movable seat (31) is provided with a first movable seat track first movable seat threaded hole matched with the base screw pair (51).

3. The pipe necking apparatus of claim 1 wherein: the first movable seat (31) is provided with a first screw rod pair (311), a second screw rod pair (312), a second movable seat driving piece (313) and a third movable seat driving piece (314); the first screw pair (311) and the second screw pair (312) extend along the direction perpendicular to the length of the base (5), the first screw pair (311) is in transmission connection with the second movable seat driving piece (313), and the second screw pair (312) is in transmission connection with the third movable seat driving piece (314); the second moving seat (32) is provided with a second moving seat threaded hole matched with the first screw pair (311), and the third moving seat (33) is provided with a third moving seat threaded hole matched with the second screw pair (312).

4. The pipe necking apparatus of claim 1 wherein: the first coil (34) comprises a first coil power connection end and a first coil working part, and the second coil (35) comprises a second coil power connection end and a second coil working part; the center of the first coil working part, the center of the second coil working part and the rotation axis of the power clamping jaw (1) are positioned on the same horizontal plane.

5. The pipe necking apparatus of claim 1 wherein: the power clamping jaw (1) comprises a rotating shaft body (11), a sleeve (12), a plurality of clamping jaw bodies (13) and a jaw body driver, and the clamping jaw rotating assembly (2) comprises a clamping jaw bearing seat (21) and a driver (22); a penetrating cavity (111) penetrating through the rotating shaft body (11) in the length direction is formed in the rotating shaft body (11), and the rotating shaft body (11) is rotatably connected to the clamping jaw bearing seat (21) and is in transmission connection with the driver (22); the plurality of clamping jaw bodies (13) are arranged on the rotating shaft body (11) at equal intervals along the circumferential direction of the rotating shaft body (11), and the jaw body driver can drive each clamping jaw body (13) to be close to or far away from the axis of the rotating shaft body (11).

6. The pipe necking apparatus of claim 5 wherein: a driving medium accommodating cavity (112) and a plurality of clamping jaw moving cavities (113) are formed between the outer wall of the shaft body of the rotating shaft body (11) and the side wall of the penetrating cavity (111), each clamping jaw moving cavity (113) extends from the outer wall of the shaft body to the driving medium accommodating cavity (112), the rotating shaft body (11) further comprises a first annular groove (114) and a second annular groove (115) formed on the outer wall of the shaft body, and a medium injection channel (116) and a medium output channel (117) which are arranged in the rotating shaft body (11);

the first annular groove (114) is connected with the driving medium accommodating cavity (112) through the medium injection channel (116), the second annular groove (115) is connected with the clamping jaw moving cavity (113) through the medium output channel (117), the sleeve (12) is rotatably sleeved on the rotating shaft body (11), the sleeve (12) is matched with the first annular groove (114) to form a first annular sealing cavity, the sleeve (12) is matched with the second annular groove (115) to form a second annular sealing cavity, and a medium supply port (121) is formed in the position, corresponding to the first annular sealing cavity and the second annular sealing cavity, of the sleeve (12).

7. The pipe necking apparatus of claim 6 wherein: the clamping jaw body (13) comprises a clamping part (131) and a moving part (132); the moving part (132) is arranged in the clamping jaw moving cavity (113) and can move along the clamping jaw moving cavity (113), a piston structure (1321) is arranged on the moving part (132) so as to divide the clamping jaw moving cavity (113) into an extending cavity and a contracting cavity through the piston structure (1321), the medium output channel (117) is communicated with the contracting cavity, and the extending cavity is connected with the driving medium accommodating cavity (112).

8. The pipe necking apparatus of claim 1 wherein: the butt mouth subassembly (4) include fixing base (41), rotate seat (42), rotate drive unit (43), butt drive unit (44) and butt unit (45), rotate seat (42) rotatable with fixing base (41) are connected, rotate drive unit (43) fix on fixing base (41) and with rotate seat (42) transmission connection, butt unit (45) with butt drive unit (44) all locate on rotating seat (42), butt drive unit (44) with butt unit (45) are connected, so as to be able to drive butt unit (45) with centre gripping in pipe fitting (6) butt on power clamping jaw (1).

9. The pipe necking apparatus of claim 8 wherein: the rotating seat (42) comprises a rotating shaft (421), and the rotating shaft (421) is rotatably connected with the fixed seat (41); the rotation driving unit (43) comprises an air cylinder (431) and a rack (432), the air cylinder (431) can drive the rack (432) to move, the rotating shaft (421) is connected with a gear (423), and the gear (423) is meshed with the rack (432); a roller shaft (451) is provided on the abutting unit (45) so as to abut against the pipe (6) via the roller shaft (451).

10. The pipe necking apparatus of claim 1 wherein: the positioning device comprises a base (5), and is characterized by further comprising a positioning unit (7), wherein the positioning unit (7) comprises a positioning rod (71) and a positioning rod driving piece (72), the positioning rod driving piece (72) is connected with the base (5), the positioning rod (71) is connected with the positioning rod driving piece (72) and can drive the positioning rod (71) to move, so that when the positioning rod (71) stretches out, the positioning rod (71) can be abutted with the end part of the pipe fitting (6).

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