CN212329820U

CN212329820U - Pipe fitting shearing mechanism

Info

Publication number: CN212329820U
Application number: CN202020214153.7U
Authority: CN
Inventors: 刘宝良; 冯晓艳; 南景富; 盖芳芳
Original assignee: Guangdong University of Petrochemical Technology
Current assignee: Guangdong University of Petrochemical Technology
Priority date: 2020-02-26
Filing date: 2020-02-26
Publication date: 2021-01-12
Anticipated expiration: 2030-02-26

Abstract

The utility model provides a pipe shearing device, which comprises a cutting mechanism, a clamping mechanism and an inner pipe supporting mechanism and is characterized in that the pipe shearing device comprises a cutting table, wherein the inner pipe supporting mechanism is arranged inside the cutting table and comprises a first motor, a screw rod fixedly connected to an output shaft of the first motor, a nut component sleeved on the screw rod, two sliding components coupled at two ends of the nut component and a sliding rod fixedly connected at two ends of the cutting table; the sliding assembly comprises a sliding block matched with the sliding rod, a telescopic cylinder embedded in the sliding block, an inner support pipe assembly fixedly connected to the end portion of a piston rod of the telescopic cylinder, a bulge fixedly connected to the bottom surface of the sliding block, and a connecting rod connected with the bulge and the nut assembly. The utility model discloses the deflection when can reducing the copper pipe cutting has improved the shaping rate after the copper pipe cutting.

Description

Pipe fitting shearing mechanism

Technical Field

The utility model relates to a cutting technical field, concretely relates to pipe fitting shearing mechanism.

Background

Pipe fitting shearing mechanism, mechanical equipment. The cutting device is widely applied to industries such as petroleum, chemical engineering, electric power, natural gas, metallurgy, shipbuilding, boilers, pharmacy, water treatment and the like, pipeline installation engineering, pipeline maintenance and the like of new projects, when a pipe made of softer material such as a copper pipe is produced, the copper pipe is cut in a very important and necessary step, and after the cutting operation, the copper pipe with the length meeting the production requirement can be obtained. When the existing copper pipe is cut, the hollow copper pipe is mainly directly cut, the copper pipe can be cut by using a cutting knife only by moving the copper pipe to a cutting position, and during cutting, as the copper pipe is hollow, a larger deformation is easily generated, and the forming rate of the copper pipe is influenced; and the saw teeth are easy to generate loss in the sawing process, so that the waste of the copper pipe materials is caused. Therefore, it is necessary to design a pipe shearing apparatus to solve the problems of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pipe fitting shearing mechanism to solve the problem that above-mentioned prior art exists, the utility model discloses the deflection when can reducing the copper pipe cutting has improved the shaping rate behind the copper pipe cutting.

In order to achieve the above object, the utility model provides a following scheme: the utility model provides a pipe shearing device, which comprises a cutting mechanism, a clamping mechanism and an inner supporting pipe mechanism, wherein the inner supporting pipe mechanism is arranged inside a cutting table, the inner supporting pipe mechanism comprises a first motor, a screw rod fixedly connected to an output shaft of the first motor, a nut component sleeved on the screw rod, two sliding components connected to two ends of the nut component in a coupling manner and sliding rods fixedly connected to two ends of the cutting table;

the sliding assembly comprises a sliding block matched with the sliding rod, a telescopic cylinder embedded in the sliding block, an inner support pipe assembly fixedly connected to the end part of a piston rod of the telescopic cylinder, a bulge fixedly connected to the bottom surface of the sliding block, and a connecting rod for connecting the bulge and the nut assembly;

the inner supporting pipe assembly comprises a supporting barrel, a third motor, a second nut, a screw and an inner supporting pipe, the supporting barrel is horizontally arranged, the third motor is fixedly connected into the supporting barrel, the second nut is fixedly connected onto an output shaft of the third motor, the screw is sleeved on the second nut, and the inner supporting pipe is fixedly connected to the end portion of the screw.

Preferably, the nut component comprises a first nut and a lifting block fixedly connected to the outer side of the first nut, and pin shafts are arranged at two ends of the lifting block in a penetrating mode.

Preferably, the cutting mechanism comprises a support, a gear coupled to the support, a rack engaged with the gear, a second motor fixedly connected to a side surface of the rack, a support plate in sliding fit with a bottom surface of the rack, and a cutting knife fixedly connected to an output shaft of the second motor, wherein the bottom surface of the rack is in sliding connection with the support plate.

Preferably, the clamping mechanism comprises an oil cylinder fixedly connected to the side face of the cutting table, a rotating rod coupled to the end portion of a piston rod of the oil cylinder, an upper clamping block inserted to the end portion of the rotating rod, a lower clamping block matched with the upper clamping block and embedded into the cutting table, a lug fixedly connected to the oil cylinder, and a support rod coupled between the lug and the rotating rod.

Preferably, the bottom surface of the bracket is in sliding connection with the upper surface of the cutting table.

Preferably, the first motor is located on a center line between the two sliders.

Preferably, the cutting knife is of a disc-shaped structure.

Preferably, the stroke of the telescopic cylinder is equal to the distance from the end of a piston rod of the telescopic cylinder to the upper surface of the cutting table, and the telescopic cylinder, the sliding rod, the first motor and the lower clamping block are in the same plane.

The utility model discloses a following technological effect:

1. the pipe fitting shearing device can play a supporting role in the inner part when the copper pipe is cut by arranging the inner supporting pipe mechanism, thereby reducing the deformation generated after cutting and improving the forming rate of the copper pipe after cutting;

2. stretch into through interior stay tube and not only can play the supporting role when cutting to waiting the pipe cutting, can treat the pipe cutting moreover and play the effect of location, and then press from both sides tight piece and press from both sides the cooperation of tight piece down through last and can realize that an hydro-cylinder is tight to the complete parcel of pipe fitting tightly, make the pipe fitting can not squint when the cutting, the removal of interior stay tube goes on simultaneously with pressing from both sides of hydro-cylinder simultaneously, has saved the time of cutting, has improved cutting efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic structural view of a pipe shearing device of the present invention;

FIG. 2 is a schematic view of a cutting mechanism;

FIG. 3 is an isometric view of the clamping mechanism;

FIG. 4 is an enlarged view of a portion A of FIG. 1;

fig. 5 is a partial enlarged view of B in fig. 1.

The cutting machine comprises a cutting table 1, a first motor 2, a screw rod 3, a sliding rod 5, a sliding block 6, a telescopic cylinder 7, a first nut 9, a lifting block 10, a protrusion 11, a connecting rod 12, a support 13, a gear 14, a rack 15, a second motor 16, a support plate 17, a cutting knife 18, an oil cylinder 20, a rotating rod 21, an upper clamping block 22, a lower clamping block 23, a lug 24, a support rod 25, a support cylinder 26, a third motor 27, a second nut 28, a screw rod 29, an inner support tube 30 and a pipe C to be cut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Example one

Referring to fig. 1-5, the utility model provides a pipe shearing device, including cutting mechanism, clamping mechanism and inner support tube mechanism, including cutting bed 1, inner support tube mechanism arranges inside cutting bed 1, inner support tube mechanism includes first motor 2, lead screw 3 of rigid coupling on first motor 2 output shaft, cup joint nut assembly on lead screw 3, two sliding assemblies and the slide bar 5 of rigid coupling at cutting bed 1 both ends of journaling at nut assembly both ends;

the sliding assembly comprises a sliding block 6 matched with the sliding rod 5, a telescopic cylinder 7 embedded in the sliding block 6, an inner support pipe assembly fixedly connected to the end part of a piston rod of the telescopic cylinder 7, a bulge 11 fixedly connected to the bottom surface of the sliding block 6, and a connecting rod 12 connecting the bulge 11 with the nut assembly;

the inner support tube component comprises a support cylinder 26 which is horizontally placed, a third motor 27 which is fixedly connected in the support cylinder 26, a second nut 28 which is fixedly connected on an output shaft of the third motor 27, a screw 29 which is sleeved on the second nut 28, and an inner support tube 30 which is fixedly connected at the end part of the screw 29.

Further preferred scheme, the nut component includes first nut 9, rigid coupling in the elevator 10 of first nut 9 outside, and the round pin axle has been run through at elevator 10 both ends.

Further preferred scheme, cutting mechanism includes support 13, the gear 14 of coupling on support 13, rack 15 with the gear 14 meshing, rigid coupling in rack 15 side second motor 16, with rack 15 bottom surface sliding fit's backup pad 17, rigid coupling in the cutting knife 18 on second motor 16 output shaft, rack 15 bottom surface and backup pad 17 sliding connection, rack 15 bottom surface rigid coupling has the slide rail, has seted up the spout on backup pad 17, slide rail and spout sliding fit.

In a further preferred scheme, the clamping mechanism comprises an oil cylinder 20 fixedly connected to the side surface of the cutting table 1, a rotating rod 21 coupled to the end portion of a piston rod of the oil cylinder 20, an upper clamping block 22 inserted to the end portion of the rotating rod 21, a lower clamping block 23 matched with the upper clamping block 22 and embedded in the cutting table 1, a projection 24 fixedly connected to the oil cylinder 20, and a support rod 25 coupled between the projection 24 and the rotating rod 21.

Further preferred scheme, support 13 bottom surface and cutting bed 1 upper surface sliding connection, support 13 bottom surface rigid coupling has the slide rail, and the spout has been seted up to cutting bed 1 upper surface, and the slide rail is connected with the spout cooperation.

Further preferably, the first electric machine 2 is located on a center line between the two sliders 6.

In a further preferred embodiment, the cutting blade 18 has a disc-shaped configuration.

In a further preferable scheme, the stroke of the telescopic cylinder 7 is equal to the distance from the end part of the piston rod of the telescopic cylinder 7 to the upper surface of the cutting table 1, and the telescopic cylinder 7, the sliding rod 5, the first motor 2 and the lower clamping block 23 are in the same plane.

The utility model discloses a pipe fitting shearing mechanism's theory of operation: when the copper pipe cutting machine works, a copper pipe is conveyed to the central fixed position of a cutting table 1, a starting oil cylinder drives an upper clamping block 22 to be matched with a lower clamping block 23 on the cutting table 1 through a rotating rod to realize the fixation of the copper pipe, meanwhile, a telescopic cylinder 7 is started to enable an inner supporting pipe 30 to move upwards to the same height with a pipe to be cut, a first motor 2 is started to enable a first nut 9 to move downwards to drive a lifting block 10 to move downwards, then two sliding blocks 6 at two ends of the first motor 2 are driven to move inwards to be drawn together through a connecting rod 12, the inner supporting pipe 30 extends into two sides of the central position of the pipe to be cut through setting the rotating control sliding blocks 6 of the first motor 2, a cutting knife 18 is driven to rotate through a second motor 16, a rack 15 is driven to move downwards through the rotation of a gear 14, and then the cutting knife 18 moves downwards, the gear 14 is controlled through another motor (not shown in the figure), and when, since there is support of the inner support tube 30 on both sides of the cut site, the amount of deformation at the tube break is reduced after the cut is completed.

Example two

In this embodiment, because the end of the piston rod of the telescopic cylinder 7 is fixedly connected with the supporting cylinder 26, the supporting cylinder 26 is embedded with the third motor 27, the third motor 27 adopts a servo motor, the output shaft of the third motor 27 is fixedly connected with the second nut 28, the second nut 28 is matched with the screw 29 for transmission, the end of the screw 29 is fixedly connected with the inner supporting tube 30, and the rotation of the third motor 27 can control the horizontal extension distance of the inner supporting tube 30 into the tube to be cut, in this embodiment, the first motor 2 is not needed, the horizontal movement of the two inner supporting tubes 30 can be realized by controlling the two third motors 27, the tube to be cut can be cut into different lengths according to requirements, even if the inner supporting tube 30 at the left side is extended into a short distance, the inner supporting tube 30 at the right side is extended into a long distance, because the bracket 13 is in sliding fit with the cutting table 1, the cutting knife 18 is moved to the middle position of the two, finally, pipe fittings with different lengths are cut out, the inner supporting pipe 30 assembly is arranged to stretch into the position inside the pipe to be cut through adjusting the two inner supporting pipes 30, the cutting knife 18 slides on the cutting table 1 through the support 13, the pipe to be cut can be cut at any position, and finally the pipe to be cut with different lengths can be cut.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. A pipe shearing device comprises a cutting mechanism, a clamping mechanism and an inner supporting pipe mechanism, and is characterized by comprising a cutting table (1), wherein the inner supporting pipe mechanism is arranged inside the cutting table (1), and comprises a first motor (2), a screw rod (3) fixedly connected to an output shaft of the first motor (2), a nut assembly sleeved on the screw rod (3), two sliding assemblies coupled to two ends of the nut assembly and sliding rods (5) fixedly connected to two ends of the cutting table (1);

the sliding assembly comprises a sliding block (6) matched with the sliding rod (5), a telescopic cylinder (7) embedded in the sliding block (6), an inner support pipe assembly fixedly connected to the end part of a piston rod of the telescopic cylinder (7), a bulge (11) fixedly connected to the bottom surface of the sliding block (6), and a connecting rod (12) connecting the bulge (11) and the nut assembly;

the inner support pipe assembly comprises a support cylinder (26) horizontally placed, a third motor (27) fixedly connected in the support cylinder (26), a second nut (28) fixedly connected on an output shaft of the third motor (27), a screw rod (29) sleeved on the second nut (28), and an inner support pipe (30) fixedly connected at the end part of the screw rod (29).

2. A pipe shearing device as defined in claim 1, wherein: the nut component comprises a first nut (9) and a lifting block (10) fixedly connected to the outer side of the first nut (9), and pin shafts are arranged at two ends of the lifting block (10) in a penetrating mode.

3. A pipe shearing device as defined in claim 1, wherein: the cutting mechanism comprises a support (13), a gear (14) which is coupled on the support (13) in a shaft connection mode, a rack (15) which is meshed with the gear (14), a second motor (16) which is fixedly connected to the side face of the rack (15), a supporting plate (17) which is in sliding fit with the bottom face of the rack (15), and a cutting knife (18) which is fixedly connected to an output shaft of the second motor (16), wherein the bottom face of the rack (15) is in sliding connection with the supporting plate (17).

4. A pipe shearing device as defined in claim 1, wherein: clamping mechanism includes that the rigid coupling is in hydro-cylinder (20), the coupling of cutting bed (1) side are in dwang (21), the grafting of hydro-cylinder (20) piston rod tip is in press from both sides tight piece (22) on the dwang (21) tip, with go up to press from both sides tight piece (22) cooperation and embedding and be in press from both sides tight piece (23), lug (24), the coupling on hydro-cylinder (20) down on cutting bed (1) and be in lug (24) with bracing piece (25) between dwang (21).

5. A pipe shearing device as defined in claim 3, wherein: the bottom surface of the support (13) is in sliding connection with the upper surface of the cutting table (1).

6. A pipe shearing device as defined in claim 1, wherein: the first motor (2) is arranged on a central line between the two sliding blocks (6).

7. A pipe shearing device as defined in claim 3, wherein: the cutting knife (18) is of a disc-shaped structure.

8. A pipe shearing device as defined in claim 4, wherein: the stroke of the telescopic cylinder (7) is equal to the distance from the end part of a piston rod of the telescopic cylinder (7) to the upper surface of the cutting table (1), and the telescopic cylinder (7), the sliding rod (5), the first motor (2) and the lower clamping block (23) are positioned in the same plane.