CN109013944B

CN109013944B - Pipeline flaring flanging tool

Info

Publication number: CN109013944B
Application number: CN201811114970.9A
Authority: CN
Inventors: 许育玮
Original assignee: Yuhuan Haolixin Copper Co ltd
Current assignee: Yuhuan Haolixin Copper Co ltd
Priority date: 2018-09-25
Filing date: 2018-09-25
Publication date: 2024-10-11
Anticipated expiration: 2038-09-25
Also published as: CN109013944A

Abstract

The invention provides a pipeline flaring flanging tool, and belongs to the technical field of machinery. The problem that the applicability of the existing manual curved edge end face machine is poor is solved. The pipeline flaring flanging tool comprises a driving tool and a clamp, wherein the pipeline flaring flanging tool further comprises a first connecting rod and a second connecting rod which are connected with the driving tool, and a limiting part which can move relative to the first connecting rod, the clamp comprises a fastener and a first clamping part and a second clamping part which are oppositely arranged, the first clamping part and the second clamping part can be buckled on the outer sides of the first connecting rod and the second connecting rod through the fastener, and the clamp can move back and forth along the axial direction of the first connecting rod and can be limited through the limiting part after moving. The pipeline flaring flanging tool has the advantage of wide applicability.

Description

Pipeline flaring flanging tool

Technical Field

The invention belongs to the technical field of machinery, and relates to a pipeline flaring flanging tool.

Background

The pipeline can be used for conveying gaseous or liquid media, and in actual use, in order to realize connection between pipelines and meet the sealing requirement after connection, outward flanging is often required to be carried out on the end face of the pipeline, and the flanging can be directly used as a flange or matched with a looper flange and a screw cap. The existing pipeline flanging processing is generally finished by corresponding processing equipment in a factory, and then the flanged pipeline is sold for use. However, the length requirements of the pipeline are different according to the actual use environments of the pipeline, and the processed pipeline is difficult to well adapt to the requirements of various use environments.

For this purpose, a manual curved edge end face machine is designed and filed in China (its application number is 200920138001.7; its publication number is CN 201415230Y), and comprises a convex roller, a transmission rod, a clamping die, a pressing ring, an extrusion head, a hand wheel, a hydraulic clamp, a spinning screw, a hydraulic clamp handle and the like, wherein the clamping die is used for sleeving a processed pipe, the pressing ring is sleeved on the clamping die and screwed with a rotating shaft sleeve through threads on the pressing ring, the hydraulic clamp is screwed with the pressing ring, the spinning screw is arranged on the clamping die, and the clamping die is fixed by the spinning screw. When the hydraulic clamp is used, the fixed clamp of the spinning screw is rotated through the hand wheel of the fixed seat to clamp the pipe, the extruding head and the hydraulic clamp are assembled, the handle of the hydraulic clamp is operated, the extruding head is driven to approach the pipe through hydraulic pressure, and the end face opening of the pipe is extruded to form a curved edge. The manual bent edge end face machine utilizes the existing hydraulic pliers as a driving device for pipe machining, is convenient to machine, has relatively small overall size and is convenient to carry.

However, the tightening ring in the manual curved edge end face machine is directly in threaded connection with the hydraulic clamp, namely, the tightening ring and the hydraulic clamp are relatively fixed, the relative distance is unchanged, after the pipe is clamped, the distance between one end of the pipe to be processed and the extrusion head is also kept unchanged, the manual curved edge end face machine can be used for processing pipes of a single specification, when pipes of different specifications are faced, the strength of the pipe, the required size after processing and other factors are changed due to the fact that parameters such as pipe diameter and the like are changed, the required pipe is difficult to extrude by a processing mode of the same distance, and the applicability is poor.

Disclosure of Invention

The invention aims at solving the problems in the prior art, and provides a pipeline flaring and flanging tool, which aims at solving the technical problems of providing a pipeline flaring and flanging tool with wide applicability.

The aim of the invention can be achieved by the following technical scheme:

The pipeline flaring flanging tool comprises a driving tool and a clamp, and is characterized by further comprising a first connecting rod, a second connecting rod and a limiting piece, wherein the first connecting rod and the second connecting rod are connected with the driving tool, the limiting piece can move relative to the first connecting rod, the clamp comprises a fastener, a first clamping piece and a second clamping piece which are oppositely arranged, the first clamping piece and the second clamping piece can be buckled on the outer sides of the first connecting rod and the second connecting rod through the fastener, and the clamp can move back and forth along the axial direction of the first connecting rod and can be limited through the limiting piece after moving.

When the pipeline flaring flanging tool is used, the clamping piece I and the clamping piece II are separated, a pipe needing flaring and/or flanging is placed between the clamping piece I and the clamping piece II, the pipe is clamped between the clamping piece I and the clamping piece II through the fastening piece and buckled on the outer sides of the rod-shaped connecting rod I and the rod-shaped connecting rod II, and the clamp cannot move freely due to the arrangement of the limiting piece. The pipe can be flared and/or flanging towards one end of the driving tool through the driving tool. After the processing is finished, the fastener is loosened, the clamping piece I and the clamping piece II are separated, and the pipe is taken out. When needing to process the tubular product of different pipe diameters, because the anchor clamps are formed by clamping piece one and clamping piece two lock, can the tubular product of different pipe diameters, on this basis, remove the spacing of locating part through adjusting locating part for connecting rod one's position, follow the axial displacement anchor clamps of connecting rod one in order to adjust the distance between anchor clamps and the driving tool, the position of readjusting the locating part after the adjustment is accomplished is spacing, repeat above course of working can.

The clamp in the pipe flaring flanging tool can clamp pipes with various pipe diameters, and the distance between the clamp and the driving tool is adjustable, so that the pipe flaring flanging tool can adapt to flaring and flanging processing of pipes with various specifications, and has wide applicability.

In the above pipe flaring flanging tool, the clamp further comprises a first clamping cavity, a second clamping cavity, a first inner core detachably connected in the first clamping cavity and a second inner core detachably connected in the second clamping cavity, the first clamping cavity is located at one side of the first clamping part facing the second clamping part, the second clamping cavity is located at one side of the second clamping part facing the first clamping part, and the first inner core and the second inner core are arranged oppositely and can form a clamping opening for clamping the pipe. When facing the tubular product of different pipe diameters, can change different inner core one and inner core two and realize the centre gripping to tubular product, extensive applicability and portable.

In the pipe flaring flanging tool, one end of the first connecting rod and one end of the second connecting rod, which face the driving tool, are connected with the driving tool, the driving tool comprises a squeezing head which can be driven by the driving tool to approach the clamp along the axial direction of the first connecting rod, one side of the squeezing head, which faces the clamp, is provided with a flanging surface which is planar, the middle part of the flanging surface is also provided with a columnar supporting part which protrudes towards the direction of the clamp, and the supporting part and the flanging surface are transited through a concave curved surface. The concave curved surface on the extrusion head is a molding surface, during processing, the supporting part stretches into the end part of the pipe, when the end part of the pipe moves to the concave curved surface along the axial direction of the supporting part, the diameter of the curved surface is continuously increased, the end part of the pipe is driven by the driving tool to continuously expand along the curved surface until the end part of the pipe extends to a flanging surface which is a plane, and finally, the end part of the pipe horizontally extends along the flanging surface to form a flanging.

In the pipe flaring flanging tool, the clamping concave cavity I and the clamping concave cavity II are oppositely arranged, and a clamping cavity capable of clamping the pipe is formed between the clamping concave cavity I and the clamping concave cavity II. The size of the clamping cavity can be selected from the size of the pipe with the largest common specification, when the pipe with the specification is processed, the first inner core and the second inner core are not required to be arranged, the clamping operation can be directly carried out, the number of the inner cores is reduced, and the carrying is convenient.

In the pipe flaring flanging tool, the first clamping piece and the second clamping piece are positioned on the side walls of the first clamping concave cavity and the second clamping concave cavity, the convex clamping parts are arranged on the side walls of the first clamping concave cavity and the second clamping concave cavity, the concave connecting grooves are correspondingly arranged on the outer walls of the first inner core and the second inner core, and the clamping parts can be clamped into the connecting grooves. When the pipe is clamped through the clamping cavity, the outer wall of the pipe can be clamped by the convex clamping part, the clamping force is improved, the pipe is guaranteed not to move, the clamping device is suitable for various pipes with smooth pipe walls, the applicability is wide, when the pipe with smaller specifications is required to be clamped, the clamping part is clamped into the connecting groove to fix the first inner core and the second inner core, and the pipe can be clamped by the first inner core and the second inner core conveniently.

In the pipe flaring flanging tool, one side of the clamping piece I is hinged with one side of the clamping piece II, and the fastening piece is connected with the other side of the clamping piece I and the other side of the clamping piece II. The clamping piece I and the clamping piece II can be opened and closed and are hinged on one side, so that the situation that the clamping piece I and the clamping piece II are completely separated is avoided, the clamping of the pipe can be realized only by operating the fastening piece on the other side, and the operation is convenient.

In the above pipe flaring flanging tool, the first clamping piece and the second clamping piece are respectively provided with a concave notch corresponding to one side of the fastener, the fastener comprises a locking screw rod penetrating through the notches of the first clamping piece and the second clamping piece in sequence and a locking nut in threaded connection with the locking screw rod, one end of the locking screw rod is hinged with the first clamping piece and the locking screw rod can swing out towards the opening direction of the notch, and the locking nut can be screwed into the other side of the clamping piece opposite to the first clamping piece along the threads of the locking screw rod to abut against the other side of the clamping piece opposite to the first clamping piece. The locking screw cap is screwed out, so that the locking screw rod swings out towards the opening direction of the notch, the clamping piece I and the clamping piece II can be separated, otherwise, the locking screw rod is retracted into the notch, the locking screw cap is screwed in and abutted against the side surface of the clamping piece II, clamping can be achieved, operation is convenient, and the fastener is not easy to lose.

In the above-mentioned pipeline flaring flanging tool, pipeline flaring flanging tool still includes being the connecting seat of tube-shape, the one end of connecting seat with driving tool can dismantle the connection, connecting rod one and connecting rod two follow the axial of connecting seat is fixed the other end of connecting seat. Through the connection of connecting seat for connecting rod one, connecting rod two, anchor clamps can form stable an organic wholely, guarantee the stability of centre gripping, and then guarantee centre gripping and machining effect.

In the pipe flaring flanging tool, the limiting piece comprises a limiting nut I and a limiting nut II which are respectively in threaded connection with the connecting rod I and the connecting rod II. The position of the clamp can be adjusted by rotating the first limit nut and the second limit nut, and the clamp is simple in structure and convenient to operate.

In another aspect, in the pipe flaring flanging tool, the limiting piece comprises clamping springs respectively clamped on the first connecting rod and the second connecting rod.

As another case, in the above pipe flaring flanging tool, the limiting piece includes a plug inserted in the clamp.

Compared with the prior art, the clamp in the pipe flaring flanging tool can be used for clamping pipes of various different specifications, and the positions of the clamp on the first connecting rod and the second connecting rod are adjustable, so that the positions of the pipe clamped on the clamp relative to an extrusion head are adjustable, the requirements of flaring and flanging of the pipes of different specifications are met, and the pipe flaring flanging tool is high in applicability.

Drawings

Fig. 1 is a schematic structural view of the pipe flaring flanging tool.

Fig. 2 is a schematic diagram of the structure of the pipe flaring flanging tool when the clamp is opened.

Fig. 3 is an enlarged view of the extrusion head in the present pipe flaring flanging tool.

Fig. 4 is a schematic structural view of a first core in the pipe flaring flanging tool.

In the figure, 1, driving a tool; 11. an extrusion head; 11a, flanging surface; 11b, a supporting part; 11c, curved surface; 2. a clamp; 21. a clamping piece I; 21a, clamping the first concave cavity; 22. a second clamping piece; 22a, clamping the second concave cavity; 23. a clamping part; 24. a notch; 3. a first connecting rod; 4. a second connecting rod; 5. a fastener; 51. locking the screw rod; 52. a lock nut; 6. a limiting piece; 7. an inner core I; 71. a connecting groove; 8. and a connecting seat.

Detailed Description

The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the flaring flanging tool for the pipeline comprises a driving tool 1, a clamp 2 capable of clamping pipes with different pipe diameters, a cylindrical connecting seat 8, a first connecting rod 3 and a second connecting rod 4, wherein the first connecting rod 3 and the second connecting rod 4 are arranged in parallel. One end of the connecting seat 8 is in threaded connection with the driving tool 1, one ends of the first connecting rod 3 and the second connecting rod 4 are fixed at the other end of the connecting seat 8, and axes of the first connecting rod 3 and the second connecting rod 4 are parallel to an axis of the connecting seat 8. The driving tool 1 comprises a pressing head 11 which can pass through the middle part of the connecting seat 8 and approach the clamp 2 along the axial direction of the connecting rod one 3 under the driving of the driving tool 1. In the present embodiment, the driving tool 1 may employ an existing hydraulic clamp structure.

The clamp 2 comprises a fastener 5, a clamping piece I21 and a clamping piece II 22 which are oppositely arranged, the clamping piece I21 and the clamping piece II 22 can be buckled on the outer sides of the connecting rod I3 and the connecting rod II 4 through the fastener 5, the clamp 2 can move back and forth along the axial direction of the connecting rod I3, and the pipeline flaring flanging tool also comprises a limiting piece 6 which can limit the clamp 2 after the clamp 2 moves along the axial direction.

Specifically, the first clamping piece 21 and the second clamping piece 22 are both in cuboid shapes, one sides of the first clamping piece 21 and the second clamping piece 22 are hinged through a hinge structure, so that the first clamping piece 21 and the second clamping piece 22 can be opened and closed, and the fastening piece 5 is connected to the other sides of the first clamping piece 21 and the second clamping piece 22 and used for positioning the first clamping piece 21 and the second clamping piece 22.

In this embodiment, the first clamping member 21 and the second clamping member 22 are provided with concave notches 24 on one side of the fastener 5, the two notches 24 are opposite and communicated with each other, the fastener 5 comprises a locking screw 51 penetrating through the notches 24 of the first clamping member 21 and the second clamping member 22 in sequence, and a locking nut 52 screwed with the locking screw 51, one end of the locking screw 51 is hinged with the first clamping member 21, the locking screw 51 can swing out towards the opening direction of the notch 24, and the locking nut 52 can be screwed into the other side of the second clamping member 22 opposite to the first clamping member 21 along the threads of the locking screw 51. Of course, the fastener 5 may be just a bolt and the bolt sequentially passes through the first clamping member 21 and the second clamping member 22 and is screwed with a nut, if necessary.

The opposite sides of the clamping piece I21 and the clamping piece II 22 are respectively provided with a concave clamping concave cavity I21 a and a concave clamping concave cavity II 22a, the clamping concave cavities I21 a and the clamping concave cavities II 22a are opposite to each other, and a clamping cavity capable of clamping the pipe is formed between the clamping concave cavities I and the clamping concave cavities II 22 a. The side wall of the clamping cavity is provided with a plurality of protruding clamping parts 23, the clamping parts 23 are annular and uniformly distributed along the axis of the first connecting rod 3, and the axis of the clamping parts 23 is parallel to the axis of the first connecting rod 3.

The clamping cavity I21 a is also detachably connected with the inner core I7, the clamping cavity II 22a is also detachably connected with the inner core II, the inner core I7 and the inner core II are opposite to each other, the cross sections of the inner core I and the inner core II are semicircular, the inner core I and the inner core II are correspondingly abutted to form a cylinder, and a clamping opening for clamping a pipe can be formed between the inner core I7 and the inner core II.

In this embodiment, the first core 7 and the second core have the same structure, and the first core 7 is taken as an example for illustration, as shown in fig. 4, the outer wall of the first core 7 is correspondingly provided with a concave connecting groove 71, the size of the connecting groove 71 is matched with that of the clamping part 23, the clamping part 23 can be clamped into the connecting groove 71, and the inner wall of the first core 7 is also provided with a plurality of convex clamping parts 23 for clamping the pipe, however, the inner wall of the first core 7 can be a smooth side wall according to the requirement. Here, the clamping portion 23 may include knurling provided on a side wall of the clamping cavity, and the first core 7 and the second core may be detachably connected by a latch structure. The limiting piece 6 can comprise a limiting nut I and a limiting nut II which are respectively in threaded connection with the connecting rod I3 and the connecting rod II 4, or comprise clamping springs respectively clamped on the connecting rod I3 and the connecting rod II 4, or comprise bolts inserted on the clamp 2.

As shown in fig. 3, the extrusion head 11 has a flange surface 11a with a flat surface on the side facing the clamp 2, and a columnar support portion 11b protruding toward the clamp 2 is further provided in the middle of the flange surface 11a, and the support portion 11b and the flange surface 11a are transited by a concave curved surface 11 c.

When the pipe flaring flanging tool is used, the lock nut 52 is screwed out, so that the lock screw 51 swings out towards the opening direction of the notch 24, and the clamping piece I21 and the clamping piece II 22 can be separated. After the clamping piece I21 and the clamping piece II 22 are separated, a pipe needing flaring and/or flanging is placed in a clamping cavity between the clamping piece I and the clamping piece II, the locking screw 51 is retracted into the notch 24, the locking nut 52 is screwed in and abuts against the side face of the clamping piece II 22, and the clamping part 23 in the clamping cavity is tightly acted on the outer wall of the pipe to clamp the pipe.

Because the limiting piece 6 is arranged on the other side of the clamp 2 relative to the driving tool 1, the clamp 2 cannot freely move in a direction away from the driving tool 1, the extrusion head 11 is driven to move towards the pipe by the hydraulic action of the driving tool 1, the supporting portion 11b firstly stretches into the end portion of the pipe, when the end portion of the pipe moves to the concave curved surface 11c along the axial direction of the supporting portion 11b due to the movement of the extrusion head 11, the diameter of the curved surface 11c gradually increases from the supporting portion 11b towards the flanging surface 11a, and under the driving action of the driving tool 1, the end portion of the pipe is continuously expanded along the curved surface 11c until reaching the flanging surface 11a which is a plane, and finally, the end portion of the pipe horizontally extends along the flanging surface 11a to form a flanging.

After the pipe is processed, the driving tool 1 drives the extrusion head 11 to return, the lock nut 52 is screwed out, the lock screw 51 swings out towards the opening direction of the notch 24, the clamping piece I21 and the clamping piece II 22 are separated again, and the pipe is taken out.

When pipes with different pipe diameters are required to be processed, the first inner core 7 and the second inner core 7 are installed in the clamping cavity through the matching of the clamping part 23 and the connecting groove 71, so that the first inner core 7 can move along with the first clamping piece 21, the second inner core can move along with the second clamping piece 22, and the extrusion head 11 with corresponding specifications can be replaced according to the requirements. After the replacement, the first limit nut and the second limit nut are rotated, so that the clamp 2 moves to a proper position closer to the driving tool 1 or further away from the driving tool 1, and the processing steps are repeated.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The pipeline flaring flanging tool comprises a driving tool (1) and a clamp (2), and is characterized in that the pipeline flaring flanging tool also comprises a first connecting rod (3) and a second connecting rod (4) which are connected with the driving tool (1) and a limiting piece (6) which can move relative to the first connecting rod (3) and the second connecting rod (4), the first connecting rod (3) and the second connecting rod (4) are arranged in parallel, the limiting piece (6) comprises a first limiting nut and a second limiting nut which are respectively connected with the first connecting rod (3) and the second connecting rod (4) in a threaded manner, the limiting piece (6) is arranged on the other side of the clamp (2) relative to the driving tool (1), the clamp (2) comprises a fastening piece (5) and a first clamping piece (21) and a second clamping piece (22) which are arranged oppositely, the first clamping piece (21) and the second clamping piece (22) can be buckled on the outer sides of the first connecting rod (3) and the second connecting rod (4) through the fastening piece (5), the clamp (2) can move along the axial direction of the first connecting rod (3) and the second connecting rod (4) respectively and can be limited after moving through the limiting piece (6), the driving tool (1) comprises a squeezing head (11) which can be driven by the driving tool (1) to approach the clamp (2) along the axial direction of the first connecting rod (3) and the second connecting rod (4).

2. The pipe flaring flanging tool according to claim 1, wherein the clamp (2) further comprises a clamping concave cavity I (21 a), a clamping concave cavity II (22 a), a core I (7) detachably connected in the clamping concave cavity I (21 a) and a core II detachably connected in the clamping concave cavity II (22 a), the clamping concave cavity I (21 a) is positioned on one side of the clamping piece I (21) facing the clamping piece II (22), the clamping concave cavity II (22 a) is positioned on one side of the clamping piece II (22) facing the clamping piece I (21), and the core I (7) and the core II are oppositely arranged and can form a clamping opening for clamping a pipe.

3. The pipe flaring flanging tool according to claim 1 or 2, wherein one end of the first connecting rod (3) and one end of the second connecting rod (4) facing the driving tool (1) are connected with the driving tool (1), a flanging surface (11 a) which is flat is arranged on one side of the extrusion head (11) facing the clamp (2), a columnar supporting part (11 b) which protrudes towards the clamp (2) is arranged in the middle of the flanging surface (11 a), and the supporting part (11 b) and the flanging surface (11 a) are transitionally connected through a concave curved surface (11 c).

4. The pipe flaring flanging tool according to claim 2, wherein the clamping concave cavity I (21 a) and the clamping concave cavity II (22 a) are oppositely arranged, and a clamping cavity capable of clamping a pipe is formed between the clamping concave cavity I and the clamping concave cavity II.

5. The pipe flaring flanging tool according to claim 2 or 4, wherein the side walls of the clamping piece I (21) and the clamping piece II (22) at the clamping concave cavity I (21 a) and the clamping concave cavity II (22 a) are respectively provided with a convex clamping part (23), the outer walls of the inner core I (7) and the inner core II are correspondingly provided with concave connecting grooves (71), and the clamping parts (23) can be clamped into the connecting grooves (71).

6. The pipe flaring flanging tool according to claim 1 or 2, wherein one side of the clamping piece I (21) and one side of the clamping piece II (22) are hinged, and the fastening piece (5) is connected to the other side of the clamping piece I (21) and the clamping piece II (22).

7. The pipe flaring flanging tool according to claim 6, wherein the clamping piece one (21) and the clamping piece two (22) are provided with concave notches (24) respectively corresponding to one side of the fastener (5), the fastener (5) comprises a locking screw (51) penetrating through the notches (24) of the clamping piece one (21) and the clamping piece two (22) in sequence and a locking nut (52) in threaded connection with the locking screw (51), one end of the locking screw (51) is hinged with the clamping piece one (21) and the locking screw (51) can swing out towards the opening direction of the notches (24), and the locking nut (52) can be screwed along the threads of the locking screw (51) to abut against the other side of the clamping piece two (22) opposite to the clamping piece one (21).

8. The pipe flaring flanging tool according to claim 1 or 2, further comprising a cylindrical connecting seat (8), wherein one end of the connecting seat (8) is detachably connected with the driving tool (1), and the connecting rod one (3) and the connecting rod two (4) are fixed at the other end of the connecting seat (8) along the axial direction of the connecting seat (8).