CN116117012B

CN116117012B - Stamping equipment and method for flaring of hydraulic engineering pipeline

Info

Publication number: CN116117012B
Application number: CN202310390027.5A
Authority: CN
Inventors: 焦方勇; 李武芹; 高学斌; 张红波; 凌霄
Original assignee: Maintenance Branch Of Dezhou Huanghe Construction Engineering Co ltd
Current assignee: Maintenance Branch Of Dezhou Huanghe Construction Engineering Co ltd
Priority date: 2023-04-13
Filing date: 2023-04-13
Publication date: 2023-06-16
Anticipated expiration: 2043-04-13
Also published as: CN116117012A

Abstract

The invention discloses punching equipment for flaring of hydraulic engineering pipelines, and particularly relates to the technical field of punching devices, comprising a base, a positioning structure, a hydraulic cylinder and a punching head; a telescopic block; cutting the wedge block; and the shrinkage driving structure is used for driving the telescopic block to slide in the sliding cavity, and enabling the cutting wedge block to be retracted into the sliding cavity when the punching head contacts the end surface of the pipeline. The cutting voussoir can cut the intraductal wall of pipeline for the intraductal wall is cut into a plurality of openings, and when the stamping head is carrying out extrusion deformation to the intraductal wall of pipeline like this, the setting of opening makes the intraductal wall by the extrusion after can be towards opening department plastic deformation, avoids the intraductal wall by the extrusion to the oral area of pipeline like this, and then causes the pipeline oral area to produce the burr of turning up, avoids influencing pipeline appearance quality, in addition because after cutting out the opening, the stamping head is when punching press the intraductal wall of pipeline, and the resistance that receives is less.

Description

Stamping equipment and method for flaring of hydraulic engineering pipeline

Technical Field

The invention relates to the technical field of stamping devices, in particular to stamping equipment and method for flaring of hydraulic engineering pipelines.

Background

As is known, in hydraulic engineering construction, the pipeline is often required to be installed in a matching manner, and the pipeline is required to be flared in construction because the inner diameter of the pipeline is smaller when the pipeline leaves the factory.

The Chinese patent No. CN110814193A discloses a small pipeline flaring stamping device which comprises a stamping platform, wherein a chute is arranged on the stamping platform, a stamping head fixing platform is movably connected to the chute, a stamping cylinder is arranged on the stamping platform on the left side of the chute, one end of the stamping cylinder is connected with the stamping head fixing platform through a connecting block, and a small pipeline fixing platform is arranged on the stamping platform on the right side of the chute; the stamping head fixing table is provided with a first stamping head fixing block, the first stamping head fixing block is provided with a second stamping head fixing block, and stamping head clamps are respectively arranged on opposite sides of the first stamping head fixing block and the second stamping head fixing block.

The flaring stamping device in the prior art extrudes the inner wall of the pipeline through the stamping head when the pipeline is flared, so that the pipeline is deformed in a molding way, and the flaring is finished, but because the stamping head is high in resistance when extruding the inner wall of the pipeline, on one hand, the forming rate of the inner wall of the pipeline is low, and on the other hand, the inner wall of the pipeline is extruded by the stamping head and possibly forms burrs outwards turned towards the opening of the pipeline, so that the appearance quality of the pipeline is affected.

Disclosure of Invention

In order to overcome the defects in the prior art, the embodiment of the invention provides punching equipment and a method for flaring a hydraulic engineering pipeline, and the technical problems to be solved by the invention are as follows: when the flaring stamping device in the prior art is used for stamping, the stamping forming rate of the pipeline is low, and the phenomenon of eversion burrs is easy to occur.

In order to achieve the above purpose, the present invention provides the following technical solutions: stamping equipment for hydraulic engineering pipeline flaring, including the base, still include:

the positioning structure is arranged on the base and used for positioning the pipeline;

the hydraulic cylinder is horizontally arranged on the base through a vertical plate;

the stamping head is connected to the telescopic rod of the hydraulic cylinder in a driving way and corresponds to the positioning structure;

the telescopic block is clamped in a sliding cavity formed by the stamping head, the telescopic block and the sliding cavity form sliding fit, and a plurality of cutting wedges are symmetrically arranged at one end of the telescopic block, which faces the direction of the pipeline, along the central line of the telescopic block;

and the shrinkage driving structure is used for driving the telescopic block to slide in the sliding cavity, and enabling the cutting wedge block to be retracted into the sliding cavity when the punching head contacts the end surface of the pipeline.

By adopting the scheme, the pipeline is arranged on the positioning structure, the pipeline is initially limited by the positioning structure, the stamping head can move towards the direction of the stamping head through the action of the hydraulic cylinder, the telescopic block is driven by the shrinkage driving structure to move towards the outer side direction of the sliding cavity, the cutting wedge block is exposed out of the sliding cavity, the cutting wedge block can cut the inner wall of the pipeline, the inner wall of the pipeline is cut into a plurality of openings, and the openings are arranged when the stamping head extrudes and deforms the inner wall of the pipeline, so that the inner wall of the pipeline can deform towards the openings after being extruded, the mouth of the pipeline is prevented from being extruded to form outwards turned burrs, the appearance quality of the pipeline is prevented from being influenced, and in addition, the stamping head is small in resistance when punching the inner wall of the pipeline due to the fact that the opening is cut.

As a preferred implementation mode, the positioning structure comprises a positioning seat, a positioning installation groove for clamping and installing a pipeline is formed in the upper surface of the positioning seat, and the inner wall of one side, far away from the stamping head, of the positioning installation groove is used for limiting the transverse movement of the pipeline.

By adopting the scheme, the pipeline is placed in the positioning installation groove of the positioning seat in a lying manner, and in addition, the inner wall of the positioning installation groove far away from one end of the stamping head can be propped against the end face of the pipeline, so that the pipeline is axially limited, and the pipeline is prevented from moving towards the direction far away from the stamping head.

As a preferred embodiment, the shrink driving structure comprises:

the driving column vertically penetrates through the stamping head and can slide up and down freely, a notch for enabling the driving column to penetrate through one end of the sliding cavity and pass through horizontally and freely is formed in the telescopic block, and the lower end of the driving column is rotationally connected with a roller;

the sliding pin horizontally penetrates through the upper end of the driving column, a kidney-shaped hole for inserting two ends of the sliding pin is formed in the telescopic block, and an included angle is formed between the length direction of the kidney-shaped hole and the telescopic sliding direction of the telescopic block on the punching head;

the elastic reset unit is used for driving the driving column to move downwards in a natural state;

the fixed plate, fixed connection in the base, just fixed plate upper surface rigid coupling has trapezoidal piece, the gyro wheel can with fixed plate, trapezoidal piece upper surface rolling contact, when the gyro wheel is rolled to trapezoidal piece upper surface by the fixed plate, can drive the actuating cylinder moves up for the sliding pin slides in waist shape downthehole, and then drives the flexible piece is moved towards punching press head outside direction.

By adopting the scheme, when the punching head moves towards the pipeline direction, in order to punch flaring towards the pipe inner wall of pipeline, the gyro wheel will roll on the inclined plane of fixed plate at first, this moment elasticity reset unit has elasticity to the solid fixed ring and pushes against the power, and then make the actuating post remove downwards, make the sliding pin slide downwards in waist shape downthehole, with this, make the sliding pin can drive the expansion block and slide towards the inboard direction of sliding chamber, and then make the cutting wedge be the shrink in the sliding chamber, when preventing idle state, personnel or other article contact the cutting wedge, and then be cut the wedge fish tail and influence the potential safety hazard, in addition when the punching head is fast near the pipeline terminal surface, the gyro wheel will roll by the upper surface of fixed plate to the inclined plane of trapezoidal piece at this moment, and then make the gyro wheel will drive the actuating post and upwards move, and make the actuating post drive the sliding pin upwards, and so make the telescopic link will move towards the outside direction of sliding chamber, and then make the expansion block expose the punching head, and then along with the removal of punching head, make the cutting start cut to cut the pipe inner wall of pipeline, make the pipeline inner wall of pipeline be by a plurality of cut opening gap size of the opening of the expansion block when the pipe cut, the clearance piece is reached by the opening size of the time, and the expansion block is driven to the opposite side, and the cost is more than required to be driven by the expansion block, and the expansion block is convenient to move, and has the cost when the expansion block is set up to move the expansion block.

As a preferred embodiment, the elastic restoring unit includes:

the fixed ring is fixedly sleeved at one end of the driving column penetrating out of the stamping head;

the first spring is sleeved on the driving column, and two ends of the elastic direction respectively elastically support against the fixed ring and the stamping head.

By adopting the scheme, the first spring is used for propping against the elasticity of the fixed ring, so that the driving column can move downwards in an initial state, and the roller can keep rolling contact with the surface of the fixed plate or the trapezoid block.

As a preferred implementation mode, the stamping head is fixedly sleeved with an oil storage sleeve, an annular oil storage cavity is formed in the oil storage sleeve, calendaring oil is stored in the oil storage cavity, and a plurality of oil spraying holes in the form of through holes are formed in one end face of the oil storage sleeve, facing the pipeline.

By adopting the scheme, through the oil spraying hole, the calendaring oil in the oil storage cavity can be sprayed to the inner wall of the pipeline by the oil spraying hole, and after the calendaring oil is adopted, the stamping head can not generate burrs on the inner wall of the pipeline when stamping is carried out on the inner wall of the pipeline.

As a preferred implementation mode, the oil storage intracavity activity is equipped with the fender ring, the fender ring external diameter is less than the internal diameter of oil storage chamber, just keep off when ring terminal surface offsets with the oil storage intracavity wall, can seal the oil spray hole, install the second spring in the oil storage intracavity, the second spring elasticity supports and pushes up the fender ring and drives fender ring terminal surface and offsets with the oil storage intracavity wall, the perpendicular rigid coupling has the short round pin on the terminal surface of fender ring towards pipeline one side, the short round pin wears out the oil storage cover and can freely slide.

By adopting the scheme, the short pin is contacted with the end face of the pipeline, so that the short pin is contracted into the oil storage sleeve, meanwhile, the rolling oil in the oil storage cavity can flow into the oil spraying hole through the gap between the baffle ring and the oil storage cavity and can be sprayed out from the oil spraying hole, so that the oil spraying operation of the rolling oil can be performed only in the stamping process of the stamping head, and the rolling oil can not leak out in the non-stamping process, and the waste phenomenon of the rolling oil is reduced.

As a preferred implementation mode, the upper end part of the vertical plate is horizontally fixedly connected with a pressurizing cylinder, a piston is mounted in the pressurizing cylinder in a clamping way, the piston and the interior of the pressurizing cylinder form sliding fit, a pull rod is horizontally connected to the stamping head, penetrates through the vertical plate into the pressurizing cylinder and is coaxially connected with the piston, and the pressurizing cylinder is connected with the oil storage cavity through an air pipe.

By adopting the scheme, through the movement of the stamping head, the pull rod can drive the piston to slide in the pressurizing cylinder, so that air in the pressurizing cylinder is extruded into the oil storage cavity, and then the pressurizing effect is generated in the oil storage cavity, so that the calendaring oil in the oil storage cavity can be sprayed out rapidly.

A stamping method for flaring of hydraulic engineering pipelines, comprising:

the pipeline is placed in a positioning installation groove of the positioning seat in a lying mode, one end of the pipeline to be flared faces towards the stamping head, a telescopic rod of the hydraulic cylinder stretches, the stamping head is driven to move towards the direction of the end to be flared of the pipeline, meanwhile, a roller arranged at the lower end of the driving column rolls on the upper surface of the fixing plate, at the moment, the roller is subjected to elastic abutting force of the first spring on the fixing ring, and then the sliding pin slides downwards in the kidney-shaped hole, so that the telescopic block slides towards the inner side direction of the sliding cavity;

when the roller rolls from the upper surface of the fixed plate to the inclined surface of the trapezoid block, the roller drives the driving column to move upwards, so that the sliding pin slides upwards in the kidney-shaped hole, the telescopic block slides towards the outer side direction of the sliding cavity, the cutting wedge block is exposed to the outer side of the punching head, the upper surface of the trapezoid block continuously drives the punching head to move, the cutting wedge block can cut the inner wall of the pipeline, a plurality of openings are cut on the inner wall of the pipeline, when the punching head contacts with the end surface of the pipeline, the roller rolls from the top surface of the trapezoid block to the other inclined surface of the trapezoid block, the sliding pin slides downwards in the kidney-shaped hole due to the elastic propping of the first spring to the fixed ring, the cutting wedge block cannot cut the inner wall of the pipeline, when the punching head is close to the end surface of the pipeline, the roller rolls from the upper surface of the trapezoid block to the inclined surface of the other end of the trapezoid block, the telescopic block continuously moves, the punching head continuously presses the opening on the inner wall of the pipeline, and the opening is formed on the inner wall of the pipeline after the opening of the pipeline is punched, the opening is eliminated;

when the stamping head moves towards the direction of the pipeline, along with the progressive approach of the stamping head, when one end of the short pin, which is exposed out of the oil storage sleeve, abuts against the end surface of the pipeline, along with the continued movement of the stamping head, the short pin is retracted into the oil storage cavity and drives the baffle ring to move towards the direction away from the pipeline, at the moment, calendaring oil in the oil storage cavity is sprayed towards the inner wall of the pipeline through the oil spraying hole, and therefore, when the stamping head stamps the inner wall of the pipeline, larger burrs cannot be generated on the inner wall of the pipeline;

along with the movement of the stamping head towards the direction of the pipeline, the pull rod can drive the piston to move towards the direction of the pipeline in the pressurizing cylinder, so that air in the pressurizing cylinder can be extruded into the oil storage cavity, and the calendaring oil in the oil storage cavity can be rapidly sprayed out by the oil spraying hole;

after stamping is finished, the telescopic rod of the hydraulic cylinder is shortened, the stamping head is driven to move reversely, the roller rolls to the top surface of the trapezoid block, the cutting wedge block is exposed out of the stamping head, the short pin is far away from the pipeline, the second spring drives the baffle ring to move, the baffle ring seals the oil spraying hole, and the piston slides reversely in the pressurizing cylinder.

The invention has the technical effects and advantages that:

1. according to the invention, the telescopic block, the cutting wedge block and the contraction driving structure are arranged, the cutting wedge block can cut the inner wall of the pipe so that the inner wall of the pipe is cut into a plurality of openings, thus, when the stamping head extrudes the inner wall of the pipe, the openings are arranged, the inner wall of the pipe can be deformed towards the openings after being extruded, the forming rate of the flaring of the pipe is improved, the inner wall of the pipe is prevented from being extruded to the opening of the pipe, the outward turned burrs are further generated at the opening of the pipe, the appearance quality of the pipe is prevented from being influenced, and in addition, the stamping head has small resistance when stamping the inner wall of the pipe is carried out after the openings are cut;

2. according to the invention, the driving column, the sliding pin, the fixing plate, the trapezoid block and the elastic reset unit are arranged, when the punching head is close to the end face of the pipeline, the roller rolls from the upper surface of the fixing plate to the inclined surface of the trapezoid block, so that the roller drives the driving column to move upwards, the driving column drives the sliding pin to move upwards, the telescopic rod moves towards the outer side direction of the sliding cavity, the telescopic block is exposed out of the punching head, the cutting wedge begins to cut the inner wall of the pipeline along with the movement of the punching head, the inner wall of the pipeline is divided into a plurality of openings, when the length of the openings reaches the punching flaring depth size of the punching head, the roller rolls from the upper surface of the trapezoid block to the inclined surface of the other side of the trapezoid block, the driving column is subjected to elastic propping force of the elastic driving structure, and the telescopic block is driven to move reversely, so that the telescopic block is retracted into the sliding cavity, and a control element is not required to be additionally arranged to control the movement of the telescopic block, and the whole telescopic process is automatically carried out, so that the cost is lower and the operation is convenient;

3. according to the invention, the oil storage sleeve, the oil storage cavity and the oil spraying hole are arranged, so that the rolling oil in the oil storage cavity can be sprayed onto the inner wall of the pipeline through the oil spraying hole, and after the rolling oil is adopted, the inner wall of the pipeline is punched by the punching head, so that burrs are not generated on the inner wall of the pipeline;

4. according to the invention, the short pin, the baffle ring and the second spring are arranged, and the short pin is contacted with the end surface of the pipeline, so that the short pin is retracted into the oil storage sleeve, meanwhile, the rolling oil in the oil storage cavity can flow into the oil injection hole from the gap between the baffle ring and the oil storage cavity and can be sprayed out from the oil injection hole, so that the oil injection operation of the rolling oil can be carried out only in the stamping process of the stamping head, the rolling oil can not leak out in the non-stamping process, and the waste phenomenon of the rolling oil is reduced.

Drawings

FIG. 1 is a schematic structural view of a stamping device for flaring hydraulic engineering pipelines in the present invention;

FIG. 2 is a schematic cross-sectional view of a stamping device for flaring hydraulic engineering pipelines;

FIG. 3 is a schematic side view of a stamping device for flaring hydraulic engineering pipelines;

FIG. 4 is a schematic cross-sectional view of a side view of a stamping apparatus for flaring hydraulic engineering pipelines;

FIG. 5 is an enlarged schematic view of a partial structure at A in FIG. 4;

FIG. 6 is a schematic diagram showing the structure of a stamping device for flaring hydraulic engineering pipelines in front view;

FIG. 7 is a schematic diagram showing a front cross-sectional view of a stamping apparatus for flaring hydraulic engineering pipelines according to the present invention;

FIG. 8 is a schematic diagram of the structure of an oil storage jacket in a stamping device for flaring hydraulic engineering pipelines;

FIG. 9 is a schematic cross-sectional view of a structure of an oil storage jacket in a stamping device for flaring hydraulic engineering pipelines;

FIG. 10 is a schematic structural view of a telescopic block in a stamping device for flaring hydraulic engineering pipelines;

FIG. 11 is a schematic front view of the structure of a telescopic block in the stamping equipment for flaring hydraulic engineering pipelines;

fig. 12 is a schematic structural view of a connection state of a second spring and a baffle ring in a stamping device for flaring of hydraulic engineering pipelines.

The reference numerals are: the hydraulic oil storage device comprises a 1-positioning seat, a 2-pipeline, a 3-base, a 4-trapezoidal block, a 5-fixed plate, a 6-roller, a 7-vertical plate, an 8-hydraulic cylinder, a 9-pressurizing cylinder, a 10-oil storage sleeve, an 11-stamping head, a 12-fixed ring, a 13-piston, a 14-pull rod, a 15-baffle ring, a 16-telescopic block, a 17-short pin, a 18-second spring, a 19-oil injection hole, a 20-first spring, a 21-driving column, a 22-kidney-shaped hole, a 23-sliding pin, a 24-cutting wedge block, a 25-oil storage cavity and a 26-notch.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1-12, the invention provides a stamping device for flaring of hydraulic engineering pipelines, which comprises a base 3, wherein a positioning seat 1 is connected or welded on the base 3 through screws, a positioning installation groove for clamping and installing a pipeline 2 is formed in the upper surface of the positioning seat 1, after the pipeline is clamped in the positioning installation groove, the pipeline is limited by the inner wall of the positioning installation groove, meanwhile, one side inner wall of the positioning installation groove can axially limit the pipeline 2, in addition, a vertical plate 7 is welded at one end of the base 3 far away from the positioning seat 1, a hydraulic cylinder 8 is horizontally arranged on the vertical plate 7, a stamping head 11 is welded or connected through screws on a telescopic rod of the hydraulic cylinder 8, the outer diameter of the stamping head 11 is matched with the inner diameter of the pipeline 2 after flaring, in addition, the stamping head 11 and the pipeline 2 are in a coaxial state, and the end to be flared of the pipeline 2 corresponds to the stamping head 11, the outer wall of the stamping head 11 facing to one side of the pipeline 2 is provided with a sliding cavity, a telescopic block 16 is clamped in the sliding cavity, the telescopic block 16 and the sliding cavity form sliding fit, one end of the telescopic block 16 facing to the direction of the pipeline 2 is symmetrically provided with a plurality of cutting wedges 24 along the central line of the telescopic block, a driving column 21 capable of freely sliding up and down is vertically arranged on the stamping head 11 in a penetrating manner, a notch 26 for enabling the driving column 21 to penetrate into one end of the sliding cavity to pass through freely in a horizontal movement manner is arranged on the telescopic block 16, the lower end of the driving column 21 is rotationally connected with a roller 6, the upper end of the driving column 21 is horizontally penetrated with a sliding pin 23, the telescopic block 16 is provided with a waist-shaped hole 22 for inserting two ends of the sliding pin 23, the length direction of the waist-shaped hole 22 forms an included angle with the telescopic sliding direction of the telescopic block 16 on the stamping head 11, the minimum included angle is an acute angle, the upper surface of the base 3 is welded with a fixing plate 5, the upper surface of the fixing plate 5 is fixedly connected with a trapezoid block 4, the roller 6 can be in rolling contact with the upper surfaces of the fixed plate 5 and the trapezoid block 4, when the roller 6 rolls from the fixed plate 5 to the upper surface of the trapezoid block 4, the driving column 21 can be driven to move upwards, the sliding pin 23 slides in the kidney-shaped hole 22, the telescopic block 16 is driven to move towards the outer side direction of the stamping head 11, one end of the driving column 21 penetrating out of the stamping head 11 is fixedly sleeved with the fixed ring 12, the driving column 21 is sleeved with the first spring 20, two ends of the elastic direction of the first spring 20 respectively elastically abut against the fixed ring 12 and the stamping head 11, the pipeline 2 is placed in a positioning installation groove of the positioning seat 1 in a lying mode, one end of the pipeline 2 to be flared faces the stamping head 11, the telescopic rod of the hydraulic cylinder 8 stretches, the stamping head 11 is driven to move towards the end direction of the pipeline 2 to be flared, meanwhile the roller 6 arranged at the lower end of the driving column 21 rolls on the upper surface of the fixed plate 5, at this time, the elastic supporting force of the first spring 20 to the fixed ring 12 is received, so that the sliding pin 23 slides downwards in the kidney-shaped hole 22, so that the telescopic block 16 slides towards the inner side direction of the sliding cavity, when the roller 6 rolls onto the inclined plane of the trapezoid block 4 from the upper surface of the fixed plate 5, the roller 6 drives the driving column 21 to move upwards, so that the sliding pin 23 slides upwards in the kidney-shaped hole 22, so that the telescopic block 16 slides towards the outer side direction of the sliding cavity, so that the cutting wedge 24 is exposed to the outer side of the punching head 11, as the hydraulic cylinder 8 continues to drive the punching head 11 to move, the cutting wedge 24 can cut the inner wall of the pipe 2, so that a plurality of openings are cut in the inner wall of the pipe 2, when the punching head 11 contacts the end face of the pipe 2, the roller 6 rolls onto the other inclined plane of the trapezoid block 4 from the top face of the trapezoid block 4, by the elastic propping of the first spring 20 to the fixed ring 12, the sliding pin 23 slides downwards in the kidney-shaped hole 22 and the telescopic block 16 is retracted into the sliding cavity, at the moment, the cutting wedge block 24 cannot cut the inner wall of the pipeline 2, when the punching head 11 is close to the end face of the pipeline 2 and is propped against the end face of the pipeline 2, the roller 6 rolls from the upper surface of the trapezoid block 4 to the inclined surface of the other end of the trapezoid block 4, the telescopic block 16 is retracted into the sliding cavity, meanwhile, the punching head 11 continues to move, at the moment, the punching head 11 punches and expands the inner wall part of the pipeline 2 with the notch formed, after expanding, the notch on the inner wall of the pipeline 2 disappears, an oil storage sleeve 10 is fixedly sleeved on the punching head 11, an annular oil storage cavity 25 is formed in the oil storage sleeve 10, a plurality of oil injection holes 19 in the form of through holes are formed on one end face of the oil storage sleeve 10 facing the pipeline 2, through the arrangement of the oil spraying holes 19, the calendaring oil in the oil storage cavity 25 can be sprayed onto the inner wall of the pipeline 2 from the oil spraying holes 19, after the calendaring oil is adopted, when the inner wall of the pipeline 2 is stamped by the stamping head 11, burrs cannot be generated on the inner wall of the pipeline 2 after the stamping is finished, the baffle ring 15 is movably arranged in the oil storage cavity 25, the outer diameter of the baffle ring 15 is smaller than the inner diameter of the oil storage cavity 25, when the end surface of the baffle ring 15 abuts against the inner wall of the oil storage cavity 25, the oil spraying holes 19 can be sealed, the second spring 18 is arranged in the oil storage cavity 25, the second spring 18 elastically abuts against the baffle ring 15 and drives the end surface of the baffle ring 15 to abut against the inner wall of the oil storage cavity 25, the end surface of the baffle ring 15 facing one side of the pipeline 2 is vertically fixedly connected with the short pin 17, the short pin 17 penetrates out of the oil storage sleeve 10 and can freely slide, the short pin 17 contacts the end surface of the pipeline, and the short pin 17 is retracted into the oil storage sleeve, simultaneously make the calendering oil in the oil storage chamber 25 can flow into the oil spray hole 19 by the space of baffle ring 15 and oil storage chamber 25 to can follow the oil spray hole 19 blowout, so make only the punching press head 11 punching press in-process just can carry out the oil spout operation of calendering oil, make the non-punching press in-process like this, the calendering oil can not reveal out, reduce the extravagant phenomenon production of calendering oil. The upper end of the vertical plate 7 is horizontally fixedly connected with a pressurizing cylinder 9, a piston 13 is arranged in the pressurizing cylinder 9 in a clamping way, the piston 13 and the interior of the pressurizing cylinder 9 form sliding fit, a pull rod 14 is horizontally connected to the stamping head 11, the pull rod 14 penetrates through the vertical plate 7 into the pressurizing cylinder 9 and is coaxially connected with the piston 13, the pressurizing cylinder 9 is connected with an oil storage cavity 25 through an air pipe, when the stamping head 11 moves towards the direction of the pipeline 2, along with the progressive approach of the stamping head 11 to the pipeline 2, when one end of a short pin 17 exposes out of an oil storage sleeve 10 and contacts with the end face of the pipeline 2, along with the continued movement of the stamping head 11, the short pin 17 is retracted into the oil storage cavity 25 and drives a baffle ring 15 to move towards the direction far away from the pipeline 2, at the moment, rolled oil in the oil storage cavity 25 is sprayed towards the inner wall of the pipeline 2 through an oil spraying hole 19, when the stamping head punches the inner wall of the pipe 2, larger burrs cannot be generated on the inner wall of the pipe 2, along with the movement of the stamping head 11 towards the direction of the pipe 2, the pull rod 14 can drive the piston 13 to move towards the direction of the pipe 2 in the pressurizing cylinder 9, and then air in the pressurizing cylinder 9 can be extruded into the oil storage cavity 25, so that calendaring oil in the oil storage cavity 25 can be rapidly sprayed out by the oil spraying hole 19, after stamping is finished, the telescopic rod of the hydraulic cylinder 8 is shortened, the stamping head 11 is driven to move reversely, the roller 6 rolls to the top surface of the trapezoid block 4, the cutting wedge 24 is exposed out of the stamping head 11, the short pin 17 is far away from the pipe 2, the second spring 18 drives the baffle ring 15 to move, the baffle ring 15 seals the oil spraying hole 19, and the piston 13 slides reversely in the pressurizing cylinder 9.

The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;

secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;

finally: the foregoing is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as various modifications, equivalent arrangements, improvements, etc., within the spirit and principles of the present invention.

Claims

1. Stamping equipment for hydraulic engineering pipeline flaring, including base (3), its characterized in that still includes:

the positioning structure is arranged on the base (3) and is used for positioning the pipeline (2);

the hydraulic cylinder (8) is horizontally arranged on the base (3) through a vertical plate (7);

the stamping head (11) is in driving connection with the telescopic rod of the hydraulic cylinder (8) and corresponds to the positioning structure;

the telescopic block (16) is clamped in a sliding cavity formed by the stamping head (11), the telescopic block (16) and the sliding cavity form sliding fit, and a plurality of cutting wedges (24) are symmetrically arranged along the central line of one end of the telescopic block (16) in the direction of the pipeline (2);

the shrinkage driving structure is used for driving the telescopic block (16) to slide in the sliding cavity, and enabling the cutting wedge block (24) to be retracted into the sliding cavity when the punching head (11) contacts the end face of the pipeline (2);

the positioning structure comprises a positioning seat (1), wherein a positioning installation groove for clamping and installing the pipeline (2) is formed in the upper surface of the positioning seat (1), and the inner wall of one side of the positioning installation groove, which is far away from the stamping head (11), is used for limiting the transverse movement of the pipeline (2);

the shrink driving structure includes:

the driving column (21) vertically penetrates through the stamping head (11) and can slide up and down freely, a notch (26) through which the driving column (21) penetrates into one end of the sliding cavity and horizontally moves freely is formed in the telescopic block (16), and the lower end of the driving column (21) is rotationally connected with the roller (6);

the sliding pin (23) horizontally penetrates through the upper end of the driving column (21), a waist-shaped hole (22) for inserting two ends of the sliding pin (23) is formed in the telescopic block (16), and an included angle is formed between the length direction of the waist-shaped hole (22) and the telescopic sliding direction of the telescopic block (16) on the stamping head (11);

an elastic reset unit for driving the driving column (21) to move downwards in a natural state;

fixed plate (5), fixed connection in base (3), just fixed plate (5) upper surface rigid coupling has trapezoidal piece (4), gyro wheel (6) can roll contact with fixed plate (5), trapezoidal piece (4) upper surface, gyro wheel (6) are by fixed plate (5) roll to when trapezoidal piece (4) upper surface, can drive actuating cylinder (21) are removed up for sliding pin (23) slide in kidney-shaped hole (22), and then drive flexible piece (16) are removed towards ram head (11) outside direction.

2. A stamping device for hydraulic engineering pipe flares as claimed in claim 1, wherein the resilient return unit comprises:

a fixed ring (12) fixedly sleeved at one end of the driving column (21) penetrating out of the stamping head (11);

the first spring (20) is sleeved on the driving column (21), and two ends of the elastic direction elastically support against the fixed ring (12) and the stamping head (11) respectively.

3. Stamping equipment for flaring of hydraulic engineering pipelines according to claim 2, characterized in that an oil storage sleeve (10) is fixedly sleeved on the stamping head (11), an annular oil storage cavity (25) is formed in the oil storage sleeve (10), calendaring oil is stored in the oil storage cavity (25), and a plurality of oil injection holes (19) in the form of through holes are formed in one end face, facing the pipeline (2), of the oil storage sleeve (10).

4. The stamping equipment for flaring of hydraulic engineering pipelines according to claim 3, characterized in that a baffle ring (15) is movably arranged in the oil storage cavity (25), the outer diameter of the baffle ring (15) is smaller than the inner diameter of the oil storage cavity (25), when the end surface of the baffle ring (15) abuts against the inner wall of the oil storage cavity (25), the oil injection hole (19) can be sealed, a second spring (18) is arranged in the oil storage cavity (25), the second spring (18) elastically abuts against the baffle ring (15) and drives the end surface of the baffle ring (15) to abut against the inner wall of the oil storage cavity (25), a short pin (17) is vertically fixedly connected on the end surface of the baffle ring (15) facing one side of the pipeline (2), and the short pin (17) penetrates out of the oil storage sleeve (10) and can slide freely.

5. The stamping equipment for flaring of hydraulic engineering pipelines according to claim 4, characterized in that the upper end part of the vertical plate (7) is horizontally fixedly connected with a pressurizing cylinder (9), a piston (13) is mounted in the pressurizing cylinder (9) in a clamping manner, the piston (13) and the inside of the pressurizing cylinder (9) form sliding fit, a pull rod (14) is horizontally connected to the stamping head (11), the pull rod (14) penetrates through the vertical plate (7) into the pressurizing cylinder (9) and is coaxially connected with the piston (13), and the pressurizing cylinder (9) is connected with an oil storage cavity (25) through an air pipe.

6. A stamping method of a stamping apparatus for hydraulic engineering pipe flares as claimed in claim 5, comprising:

the pipeline (2) is placed in a positioning installation groove of the positioning seat (1) in a lying mode, one end of the pipeline (2) to be flared faces towards the stamping head (11), a telescopic rod of the hydraulic cylinder (8) is stretched, the stamping head (11) is driven to move towards the direction of the end to be flared of the pipeline (2), meanwhile, a roller (6) arranged at the lower end of the driving column (21) rolls on the upper surface of the fixed plate (5), at the moment, the elastic propping force of the first spring (20) on the fixed ring (12) is received, and then the sliding pin (23) slides downwards in the kidney-shaped hole (22), so that the telescopic block (16) slides towards the inner side of the sliding cavity;

when the roller (6) rolls to the inclined plane of the trapezoid block (4) from the upper surface of the fixed plate (5), the roller (6) drives the driving column (21) to move upwards, so that the sliding pin (23) slides upwards in the kidney-shaped hole (22), the telescopic block (16) slides towards the outer side direction of the sliding cavity, the cutting wedge block (24) is exposed to the outer side of the punching head (11), the hydraulic cylinder (8) continues to drive the punching head (11) to move, the cutting wedge block (24) can cut the inner wall of the pipe (2), the inner wall of the pipe (2) is cut with a plurality of openings, when the punching head (11) contacts with the end face of the pipe (2), the roller (6) rolls to the other inclined plane of the trapezoid block (4) from the top face of the trapezoid block (4), the first spring (20) abuts against the fixed ring (12), the sliding pin (23) slides downwards in the kidney-shaped hole (22), the telescopic block (16) is prevented from abutting against the inner wall of the pipe (2) when the sliding block (16) is in the state of the pipe (2) and the inner wall of the pipe (4) is not abutting against the end face of the trapezoid block (4), simultaneously, the stamping head (11) continues to move, at the moment, the stamping head (11) performs stamping flaring on the inner wall part of the pipeline (2) with the notch, and after flaring, the notch on the inner wall of the pipeline (2) disappears;

when the stamping head (11) moves towards the direction of the pipeline (2), along with the gradual approach of the stamping head (11) to the pipeline (2), when one end of the short pin (17) exposed out of the oil storage sleeve (10) is abutted against the end face of the pipeline (2), along with the continuous movement of the stamping head (11), the short pin (17) is retracted into the oil storage cavity (25) and drives the baffle ring (15) to move towards the direction away from the pipeline (2), at the moment, the calendaring oil in the oil storage cavity (25) is sprayed to the inner wall of the pipeline (2) through the oil spraying hole (19), so that the inner wall of the pipeline (2) cannot generate larger burrs when the stamping head stamps the inner wall of the pipeline (2);

along with the movement of the stamping head (11) towards the direction of the pipeline (2), the pull rod (14) can drive the piston (13) to move towards the direction of the pipeline (2) in the pressurizing cylinder (9), so that air in the pressurizing cylinder (9) can be extruded into the oil storage cavity (25), and the calendaring oil in the oil storage cavity (25) can be rapidly sprayed out by the oil spraying hole (19);

after stamping, the telescopic rod of the hydraulic cylinder (8) is shortened, the stamping head (11) is driven to move reversely, the roller (6) rolls to the top surface of the trapezoid block (4) at the same time, the cutting wedge block (24) is exposed out of the stamping head (11), the short pin (17) is far away from the pipeline (2), the second spring (18) drives the baffle ring (15) to move, the baffle ring (15) seals the oil spraying hole (19), and the piston (13) slides reversely in the pressurizing cylinder (9).