CN214719987U - Machining equipment for pipe end of special pipe - Google Patents

Abstract

The utility model relates to a processing device for the end of a special pipe, which comprises a flaring component and a necking component, wherein the flaring component and the necking component are respectively used for asynchronously forming the inner contour and the outer contour of the end of the special pipe; the flaring component comprises a first main body and a flaring mechanism supported on the first main body, wherein the flaring mechanism comprises at least two flaring dies, and when the flaring dies are sleeved in the end of the special pipe, the flaring dies move from inside to outside along the radial direction of the special pipe to shape the inner contour of the end of the special pipe. The utility model discloses an asynchronous fashioned mode of inside and outside outline of mechanical tubes pipe end replaces inside and outside outline synchronous molding among the prior art, can avoid the inside and outside outline of mechanical tubes pipe end to have great error and unable prosthetic problem simultaneously.

Description

Machining equipment for pipe end of special pipe

Technical Field

The utility model belongs to the technical field of the pipe-line machining technique and specifically relates to indicate a processing equipment of mechanical tubes pipe end.

Background

The special pipe is a generic term for steel pipes having a cross-sectional shape other than a round pipe. According to the different shapes and sizes of the cross sections of the steel pipes, the steel pipes can be divided into special-shaped steel pipes with equal wall thickness, special-shaped steel pipes with unequal wall thickness and special-shaped steel pipes with variable diameters.

The existing machining and forming method of the pipe end of the special pipe is to design a special forming die according to the pipe end profile of the special pipe, fix a steel pipe between an upper die and a lower die by closing the upper die and the lower die in the working process, and then form the profile of the pipe end of the special pipe by matching the upper die and the lower die through the translation of a copper core rod. In order to improve the forming efficiency, a copper core rod is usually adopted to drive the inner and outer profiles of the pipe end of the special pipe to be formed synchronously in the prior art, and because the copper core rod has low moving precision, when the copper core rod moves to have an error, the inner and outer profiles of the pipe end of the special pipe have a large error at the same time, the error cannot be reduced to be within the process requirement range through secondary correction, and the defective rate of the pipe end of the special pipe is increased; on the other hand, in the prior art, the relative displacement between the upper and lower dies and the special pipe is caused by the axial displacement of the copper core rod, so that the inner and outer surfaces of the pipe end are easily scratched and abraded, and the problem that the process requirement cannot be met after the pipe end is formed is solved.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to overcome the defects that in the prior art, when the end of the special pipe is processed and formed, the copper core rod scratches and wears the inner contour of the special pipe, which causes the technical requirements not to be met after the end of the pipe is processed and formed, and simultaneously, the inner contour and the outer contour of the end of the special pipe are formed simultaneously, and the error of the copper core rod causes the inner contour and the outer contour of the end of the special pipe to have larger error simultaneously, which is not convenient for secondary correction, thereby providing a processing device for the end of the special pipe, which avoids the problems of abrasion and scratching caused by the axial relative displacement between the end of the special pipe and the end of the special pipe as well as between the end of the special pipe, the end of the expanding part and the end of the reducing part in the radial direction of the special pipe, and simultaneously, the secondary correction is convenient through the processing of the end of the expanding part and the reducing part, the problem that the inner and outer contours of the pipe end of the special pipe cannot be repaired due to large errors is solved.

In order to solve the technical problem, the utility model provides a processing device for the end of a special pipe, which comprises an expanding part and a necking part, wherein the expanding part and the necking part are respectively used for asynchronously forming the inner contour and the outer contour of the end of the special pipe;

the flaring component comprises a first main body and a flaring mechanism supported on the first main body, the flaring mechanism comprises at least two flaring dies, and when the flaring dies are sleeved in the end of the special pipe, the flaring dies move from inside to outside along the radial direction of the special pipe to shape the inner contour of the end of the special pipe;

the necking part comprises a second main body and a necking mechanism supported on the second main body, the mechanical tube is supported in the necking mechanism when the outer contour of the tube end of the mechanical tube is formed, the necking mechanism comprises at least two necking dies, and when the necking dies are sleeved outside the tube end of the mechanical tube, the necking dies can move at least along the radial direction of the mechanical tube from outside to inside to form the outer contour of the tube end of the mechanical tube.

In an embodiment of the present invention, in order to improve the stability of the flaring die when moving, the first main body is provided with a first sliding groove corresponding to the flaring die one to one, and the flaring die moves along the first sliding groove.

In an embodiment of the present invention, in order to facilitate replacement of different flaring dies, a slider slidably disposed in the first sliding groove and detachably connected to the flaring die is provided.

In an embodiment of the present invention, in order to drive the flaring die to move more conveniently, the flaring component further includes a flaring mandrel supported on the first main body, one end of the flaring mandrel is set to be a cone structure, the axial direction of the first main body is provided with a first through hole, the flaring mandrel is inserted into the first through hole, the flaring mandrel passes through the cone structure and the flaring die contacts to drive the flaring die to move along the first chute.

In an embodiment of the present invention, in order to avoid the flaring mandrel being separated from the working position during the use, the flaring component further includes a first limiting component disposed in the first main body, the first limiting component includes a first limiting part connected with the first main body and a first fixture block disposed on the flaring mandrel, a second through hole is disposed on the first limiting part, and the first limiting part and the first fixture block are all adapted to the second through hole.

In an embodiment of the present invention, in order to drive the necking die more conveniently, the necking part further includes a driving rod supported on the second body, the axial direction of the second body is provided with a third through hole, the driving rod is disposed through the third through hole, one end of the driving rod is connected with the necking die to drive the necking die at least to follow the radial outward inward movement of the mechanical tube.

In an embodiment of the present invention, in order to make the necking die move more stably, the transmission rod is provided with a second sliding groove corresponding to the necking die one-to-one, and the necking die and the second sliding groove are movably disposed.

The utility model discloses an in the embodiment, stability when moving in order to improve the throat mould, be equipped with the guide bar in the second spout, the guide bar with the moving direction of throat mould parallels, the cover is equipped with the spring on the guide bar, the one end of spring with the second spout is connected, the other end of spring is connected with the transmission piece, the transmission piece cover is established on the guide bar, the transmission piece with throat mould fixed connection.

The utility model discloses an in the embodiment, in order to avoid the transfer line to break away from operating position in the use, still be equipped with the spacing subassembly of second in the second main part, the spacing subassembly of second include with second locating part and the second fixture block of setting on the transfer line that the second main part is connected, be equipped with the fourth through-hole on the second locating part, the transfer line with the second fixture block all with fourth through-hole looks adaptation.

In an embodiment of the present invention, in order to enable the necking dies to move along the radial direction of the mechanical tubes while moving along the axial direction of the transmission rod, the third through holes are round holes, and the outer contour of each necking die when being closed is in a shape of a circular truncated cone, and the top of each necking die is wide and the bottom of each necking die is narrow; when the necking mechanism sleeve is arranged outside the end of the special pipe, the outer wall of the necking die abuts against the inner wall of the third through hole, the transmission rod drives the necking die to move axially, and the inner wall of the through hole acts on the necking die to enable the necking die to move radially and fold so as to slowly form the outer contour of the end of the special pipe during axial movement of the necking die.

Compared with the prior art, the technical scheme of the utility model have following advantage:

firstly, the inner contour and the outer contour of the end of the special pipe are asynchronously formed to replace the inner contour and the outer contour in the prior art, so that the problem that the inner contour and the outer contour of the end of the special pipe cannot be repaired due to large errors can be solved; in one mode, an inner contour is formed firstly, if the forming precision of the inner contour does not meet the requirement, the inner contour is corrected firstly until the forming precision meets the requirement, and then the outer contour is formed until the forming of the inner contour and the outer contour of the end of the special pipe meet the precision requirement;

and secondly, driving the flaring die to move from inside to outside and driving the necking die to move from outside to inside so as to respectively form the inner contour and the outer contour of the end of the special pipe.

Drawings

In order to make the content of the present invention more clearly understood, the present invention will be described in further detail with reference to the following embodiments of the present invention, in conjunction with the accompanying drawings, wherein:

fig. 1 is a schematic structural diagram of a first view angle of a flaring part of a processing device for a pipe end of a special pipe in a preferred embodiment of the invention;

fig. 2 is a structural schematic diagram (excluding a first limiting assembly) of a second viewing angle of a flaring component of the processing equipment for the end of the profiled tube shown in fig. 1;

fig. 3 is a cross-sectional view in the axial direction of a flaring part of the processing device for the end of the profiled tube shown in fig. 1;

fig. 4 is a top view of a first limiting member of the processing device for the pipe end of the mechanical tube shown in fig. 1;

fig. 5 is a schematic structural diagram of a first view angle of a necking part of the processing equipment for the pipe end of the special pipe in the preferred embodiment of the invention;

fig. 6 is a structural schematic diagram of a second view angle of a necking part of the processing equipment for the pipe end of the mechanical tube shown in fig. 5 (without a second limiting assembly);

fig. 7 is a top view of a necking part of the apparatus for processing the end of the tube of the profile tube shown in fig. 5;

fig. 8 is an axial cross-sectional view of a necking part of the apparatus for processing the end of the tube of the mechanical tube shown in fig. 5;

FIG. 9 is an enlarged view of portion A of FIG. 8;

fig. 10 is a top view of a second stop of the apparatus for machining the end of the profiled tube shown in fig. 5.

The specification reference numbers indicate: 1. the first main body, 2, flaring die, 3, second main body, 4, necking die, 5, first spout, 6, slider, 7, flaring plug, 8, first through-hole, 9, first locating part, 10, first fixture block, 11, second through-hole, 12, transfer line, 13, third through-hole, 14, second spout, 15, guide bar, 16, spring, 17, transfer block, 18, second locating part, 19, second fixture block, 20, fourth through-hole.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

It will be understood that when an element is referred to as being "disposed on," "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured" to, or "fixedly coupled" to another element, it can be removably secured or non-removably secured to the other element. When an element is referred to as being "connected," "pivotally connected," to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like are used for illustrative purposes only and are not meant to be the only real-time.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the present invention, "first", "second", "third", and the like are used similarly to refer to a specific number and order, and are used only for name differentiation.

Referring to fig. 1 and 5, an embodiment of a device for processing a tube end of a mechanical tube according to the present invention includes a flaring component and a necking component, and the device uses the flaring component and the necking component to asynchronously form an inner contour and an outer contour of the tube end of the mechanical tube;

the flaring part comprises a first main body 1 and a flaring mechanism supported on the first main body 1, the flaring mechanism comprises at least two flaring dies 2, and when the flaring dies 2 are sleeved in the end of the special pipe, the flaring dies 2 move from inside to outside along the radial direction of the special pipe to form the inner contour of the end of the special pipe;

the necking part comprises a second main body 3 and a necking mechanism supported on the second main body 3, when the outer contour of the tube end of the mechanical tube is formed, the mechanical tube is supported in the necking mechanism, the necking mechanism comprises at least two necking dies 4, and when the necking dies 4 are sleeved outside the tube end of the mechanical tube, the necking dies 4 can move from outside to inside along the radial direction of the mechanical tube at least so as to form the outer contour of the tube end of the mechanical tube. It should be noted that the external contour of the flaring die 2 after being completely dispersed should be consistent with the final internal contour required by the tube end, and the internal contour of the necking die 4 after being completely closed should be consistent with the final external contour required by the tube end; meanwhile, the first body 1 and the second body 3 may be the same support seat, base, etc., or may be two independent support seats, bases, etc.; the flaring die 2 is driven to move from inside to outside along the radial direction of the special pipe, so that the inner contour of the pipe end is expanded and formed under the movement of the flaring die 2, the axial relative displacement between the pipe end of the special pipe and the flaring die 2 is avoided, the inner surface of the pipe end of the special pipe is prevented from being scratched and abraded, the necking die 4 is driven to move from outside to inside along the radial direction of the special pipe, so that the outer contour of the pipe end is contracted and formed under the movement of the necking die 4, and when the necking die 4 moves along the non-radial direction, the special pipe is supported in the necking mechanism, so that the special pipe moves along with the movement of the necking die 4, and the abrasion and scratching of the outer surface of the pipe end of the special pipe caused by the axial relative displacement between the special pipe end and the necking die 4 are avoided; after the inner contour of the pipe end is preliminarily formed, detecting the precision of the inner contour, and if the forming precision does not reach the standard, correcting the inner contour by using a flaring mechanism until the forming precision meets the process requirement; and then, preliminarily forming the outer contour of the pipe end, detecting the precision of the outer contour, and if the forming precision does not reach the standard, correcting the outer contour of the pipe end through a necking mechanism until the forming precision meets the process requirement, so that the forming quality of the pipe end of the special pipe is improved.

Referring to fig. 3, the first main body 1 is provided with first sliding grooves 5 corresponding to the flaring dies 2 one to one, and the flaring dies 2 are movably disposed along the first sliding grooves 5. The moving track of the flaring die 2 can be limited through the first sliding chute 5, so that each movement of the flaring die 2 is more accurate, and the forming precision of the inner contour of the end of the special pipe is improved.

Referring to fig. 3, a slide block 6 detachably connected with the flaring die 2 is slidably arranged in the first slide groove 5. Establish slider 6 through adding between first spout 5 and flaring die 2, and slider 6 can dismantle with flaring die 2 and be connected, when making flaring die 2 install on slider 6, can slide along with slider 6 slip in first spout 5, and when needs change flaring die 2, pull down flaring die 2 from slider 6, then install the flaring die 2 of different specifications to slider 6 on, the change of flaring die 2 has been realized, thereby the suitability of this processing equipment has been improved.

Referring to fig. 2 and 3, the flaring component further includes a flaring core rod 7 supported on the first main body 1, one end of the flaring core rod 7 is provided with a cone structure, a first through hole 8 is axially arranged on the first main body 1, the flaring core rod 7 is arranged in the first through hole 8 in a penetrating manner, and the flaring core rod 7 is in contact with the flaring die 2 through the cone structure to drive the flaring die 2 to move along the first chute 5. It should be noted that each flaring die 2 is in contact with the flaring mandrel 7 at the same time, and the flaring mandrel 7 is driven to move along the first through hole 8 to drive the flaring die 2 to move synchronously along the first sliding chute 5.

Referring to fig. 3 and 4, the flaring component further includes a first limiting assembly disposed in the first main body 1, the first limiting assembly includes a first limiting member 9 connected to the first main body 1 and a first fixture block 10 disposed on the flaring mandrel 7, the first limiting member 9 is provided with a second through hole 11, and both the first limiting member 9 and the first fixture block 10 are adapted to the second through hole 11. Before flaring plug 7 uses, pass second through-hole 11 with first fixture block 10 and flaring plug 7, make the one end of flaring plug 7 wear to establish to the one end that first through-hole 8 is close to flaring die 2, then, rotate flaring plug 7 for first fixture block 10 supports with first locating part 9 and leans on, thereby makes first locating part 9 form spacing effect to first fixture block 10, avoids flaring plug 7 to break away from first through-hole 8 when using.

Referring to fig. 5-7, the necking part further includes a driving rod 12 supported on the second body 3, the second body 3 is axially provided with a third through hole 13, the driving rod 12 is inserted into the third through hole 13, and one end of the driving rod 12 is connected to the necking die 4 to drive the necking die 4 to move from outside to inside at least along the radial direction of the mechanical tube. It should be noted that, each necking die 4 is connected to the transmission rod 12, and the transmission rod 12 moves in the third through hole 13 to drive each necking die 4 to move synchronously along the radial direction of the special pipe, which is more convenient than the mode of driving each necking die 4 to move separately.

Referring to fig. 8 to 9, the driving rod 12 is provided with second sliding grooves 14 corresponding to the necking dies 4 one by one, and the necking dies 4 and the second sliding grooves 14 are movably arranged. When the transmission rod 12 is pulled, the necking die 4 moves along the second chute 14, and at the moment, the second chute 14 limits the moving track of the necking die 4, so that each movement of the necking die 4 is more accurate, and the outer contour forming precision of the tube end of the special tube is improved.

Referring to fig. 8-9, a guide rod 15 is arranged in the second chute 14, the guide rod 15 is parallel to the moving direction of the necking die 4, a spring 16 is sleeved on the guide rod 15, one end of the spring 16 is connected with the second chute 14, the other end of the spring 16 is connected with a transmission block 17, the transmission block 17 is sleeved on the guide rod 15, and the transmission block 17 is fixedly connected with the necking die 4. When each necking die 4 is closed under the driving of the transmission rod 12, the necking die 4 drives the transmission block 17 to synchronously move along the guide rod 15, at the moment, the spring 16 stores deformation potential energy, after the necking die 4 moves in place, the outer contour of the pipe end of the special pipe is formed, then, the external force applied to the transmission rod 12 is removed, at the moment, the spring 16 releases the deformation potential energy, the transmission block 17 is pushed back to the original position along the guide rod 15, each necking die 4 is driven to recover to the original position, and the next necking process is convenient to carry out.

Referring to fig. 8 and 10, a second limiting assembly is further disposed in the second main body 3, the second limiting assembly includes a second limiting member 18 connected to the second main body 3 and a second fixture block 19 disposed on the transmission rod 12, a fourth through hole 20 is disposed on the second limiting member 18, and both the transmission rod 12 and the second fixture block 19 are adapted to the fourth through hole 20. Before the transmission rod 12 is used, the transmission rod 12 and the second fixture block 19 pass through the fourth through hole 20 until one end of the transmission rod 12 passes through the third through hole 13, and then the transmission rod 12 is rotated, so that the second fixture block 19 abuts against the second limiting member 18, the second limiting member 18 limits the second fixture block 19, and the transmission rod 12 is prevented from being separated from the third through hole 13 when in use.

Referring to fig. 8, the third through hole 13 is a circular hole, and the outer contour of each necking die 4 is in a circular truncated cone shape when being closed, and is wide at the top and narrow at the bottom; when the necking mechanism is sleeved outside the pipe end of the special pipe, the outer wall of the necking die 4 abuts against the inner wall of the third through hole 13, the transmission rod 12 drives the necking die 4 to move axially, and when the necking die 4 moves axially, the inner wall of the third through hole 13 acts on the necking die 4 to enable the necking die 4 to move radially and fold so as to perform outer contour slow forming on the pipe end of the special pipe. When the transmission rod 12 is pulled, because the outer contour of each necking die 4 is in a circular truncated cone shape and is wide at the top and narrow at the bottom when being folded, the necking die 4 can move from outside to inside in the process of axially sliding along the third through hole 13, compared with the way that the necking die 4 directly moves along the radial direction of the special pipe, the embodiment is more beneficial to slowly forming the outer contour of the pipe end of the special pipe, and the problem that the error is large due to the fact that the forming speed of the outer contour of the pipe end of the special pipe is too high is solved.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.

Claims (10)

1. The processing equipment for the pipe end of the special pipe is characterized in that: the processing equipment respectively uses the flaring component and the necking component to asynchronously form the inner contour and the outer contour of the pipe end of the special pipe;

the flaring component comprises a first main body and a flaring mechanism supported on the first main body, the flaring mechanism comprises at least two flaring dies, and when the flaring dies are sleeved in the end of the special pipe, the flaring dies move from inside to outside along the radial direction of the special pipe to shape the inner contour of the end of the special pipe;

the necking part comprises a second main body and a necking mechanism supported on the second main body, the mechanical tube is supported in the necking mechanism when the outer contour of the tube end of the mechanical tube is formed, the necking mechanism comprises at least two necking dies, and when the necking dies are sleeved outside the tube end of the mechanical tube, the necking dies can move at least along the radial direction of the mechanical tube from outside to inside to form the outer contour of the tube end of the mechanical tube.

2. A profiled tube end machining apparatus as claimed in claim 1, wherein: the first main body is provided with first sliding grooves in one-to-one correspondence with the flaring dies, and the flaring dies are arranged along the first sliding grooves in a moving mode.

3. A profiled tube end machining apparatus as claimed in claim 2, wherein: and a sliding block detachably connected with the flaring die is arranged in the first sliding groove in a sliding manner.

4. A profiled tube end machining apparatus as claimed in claim 2, wherein: the flaring part further comprises a flaring core rod supported on the first main body, one end of the flaring core rod is of a cone structure, a first through hole is formed in the first main body in the axial direction, the flaring core rod penetrates through the first through hole, and the flaring core rod is in contact with the flaring die through the cone structure to drive the flaring die to move along the first sliding groove.

5. A profiled tube end machining apparatus as claimed in claim 4, wherein: the flaring component further comprises a first limiting assembly arranged in the first main body, the first limiting assembly comprises a first limiting part connected with the first main body and a first clamping block arranged on the flaring core rod, a second through hole is formed in the first limiting part, and the first limiting part and the first clamping block are matched with the second through hole.

6. A profiled tube end machining apparatus as claimed in claim 1, wherein: the necking part further comprises a transmission rod supported on the second main body, a third through hole is formed in the second main body in the axial direction, the transmission rod penetrates through the third through hole, and one end of the transmission rod is connected with the necking die to drive the necking die to move at least along the radial direction of the special pipe from outside to inside.

7. A profiled tube end machining apparatus as claimed in claim 6, wherein: and the transmission rod is provided with second sliding grooves which correspond to the necking dies one to one, and the necking dies and the second sliding grooves are movably arranged.

8. A profiled tube end machining apparatus as claimed in claim 7, wherein: the improved necking die is characterized in that a guide rod is arranged in the second sliding groove, the guide rod is parallel to the moving direction of the necking die, a spring is sleeved on the guide rod, one end of the spring is connected with the second sliding groove, the other end of the spring is connected with a transmission block, the transmission block is sleeved on the guide rod, and the transmission block is fixedly connected with the necking die.

9. A profiled tube end machining apparatus as claimed in claim 7, wherein: the second limiting assembly is further arranged in the second main body and comprises a second limiting part connected with the second main body and a second clamping block arranged on the transmission rod, a fourth through hole is formed in the second limiting part, and the transmission rod and the second clamping block are matched with the fourth through hole.

10. A profiled tube end machining apparatus as claimed in claim 6, wherein: the third through hole is a round hole, and the outer contour of each necking die is in a circular truncated cone shape when being closed, and the upper part of each necking die is wide and the lower part of each necking die is narrow; when the necking mechanism sleeve is arranged outside the end of the special pipe, the outer wall of the necking die abuts against the inner wall of the third through hole, the transmission rod drives the necking die to move axially, and the inner wall of the through hole acts on the necking die to enable the necking die to move radially and fold so as to slowly form the outer contour of the end of the special pipe during axial movement of the necking die.

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