CN111360314A

CN111360314A - Cutting device

Info

Publication number: CN111360314A
Application number: CN202010333030.XA
Authority: CN
Inventors: 梁智渊; 生凯章; 韩浩; 范连军; 楚红建; 徐成琼
Original assignee: Sichuan Aerospace Shenkun Technology Co ltd
Current assignee: Sichuan Aerospace Shenkun Technology Co ltd
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2020-07-03

Abstract

The invention discloses a cutting device which comprises a cutter, a circumferential rotating mechanism and a feeding mechanism, wherein the circumferential rotating mechanism drives the cutter to rotate along the circumferential direction of a pipe to be processed, and the feeding mechanism drives the cutter to feed and retract. The cutting device provided by the invention performs annular cutting by using the cutter which moves along the circumferential direction of the pipe fitting to be processed, has high cutting precision and good quality, does not cause unnecessary damage to the pipe fitting to be processed, ensures the quality and precision of reconnection of the pipe fitting, reduces the maintenance cost, has a simple and compact structure, can be directly applied to a pipeline construction site, and is convenient to use and high in efficiency.

Description

Cutting device

Technical Field

The invention relates to the technical field of pipeline processing devices, in particular to a cutting device.

Background

A pipeline is a device for transporting a gas, liquid or fluid with solid particles, connected by pipes, pipe couplings, valves, etc. The pipe fittings of different pipe diameters need to be cup jointed together usually among the current plumbing installation, when the pipe diameter of the pipe fitting that cup joints differs greatly, need through cyclic annular connecting piece welded connection between the interior outer pipe fitting, the interior outer pipe fitting is in unable connected state of adjusting after welded connection accomplishes, nevertheless when the axiality between interior outer pipe fitting does not reach required high accuracy, or interior outer pipe fitting goes wrong and need change interior pipe fitting or outer pipe fitting, need to split the rigid coupling interior outer pipe fitting together. Interior outer pipe member's split difficulty, prior art can adopt laser cutting to come the interior, outer pipe member split usually, but laser cutting's is with high costs to laser cutting equipment also can't directly apply to pipe means's job site, if adopt traditional electric saw to carry out the split, the incision regularity that its formed is poor, the precision is poor, in the serious influence, quality and precision are connected to outer pipe member secondary, still cause the destruction to interior, outer pipe member easily, have increased the cost of maintaining the change.

Disclosure of Invention

The invention aims to solve the technical problems and the technical task of improving the prior art, and provides a cutting device, which solves the problems that in the prior art, a sleeved pipe is difficult to cut and split efficiently, the pipe is easy to damage in the splitting process, and the maintenance cost is high.

In order to solve the technical problems, the technical scheme of the invention is as follows:

the utility model provides a cutting device, includes cutter, circumference rotary mechanism and feed mechanism, circumference rotary mechanism drive the cutter is along pending pipe fitting circumferential direction, feed mechanism drive the cutter carries out the feed and moves back the sword. The cutting device provided by the invention performs annular cutting by using the cutter which moves along the circumferential direction of the pipe fitting to be processed, has high cutting precision and good quality, does not cause unnecessary damage to the pipe fitting to be processed, ensures the quality and precision of reconnection of the pipe fitting, and reduces the maintenance cost.

Furthermore, circumference rotary mechanism include support piece and rotation piece, support piece erect and fix on the pipe fitting of awaiting treatment, rotation piece swing joint on support piece and along the pipe fitting circumferential direction of awaiting treatment, the cutter setting on rotating the piece. The cutting device disclosed by the invention is compact in structure and small in occupied space, and can be directly erected and installed on a pipe fitting to be processed, so that the stable and accurate positioning of the cutting device relative to the pipe fitting to be processed can be conveniently ensured, the accuracy of a movement path of a cutter is further ensured, the cutting quality is finally effectively ensured, and the situation of cutting deflection is avoided.

Further, support piece be the annular along pending pipe fitting circumference, be provided with a plurality of in its circumference interval and be used for leaning on the piece that leans on in the top of pending pipe fitting circumference wall, simple structure, simple to operate, support piece cover is established in the periphery of pending pipe fitting, simple structure, can fix on pending pipe fitting by accurate realization support piece to effectively ensure support piece's stability, thereby guarantee cutter motion process's stability, effectively improve cutting accuracy and quality.

Further, the rotation piece be the annular along pending pipe fitting circumference, can effectively improve the rotation piece along pending pipe fitting circumferential direction's stability, improve cutting accuracy and quality, can set up along pending pipe fitting circumference's annular guide portion or arc line section guide portion on the support piece, annular guide portion, arc line section guide portion can be the guide way of seting up on support piece, also can be the direction flange, thereby the rotation piece rotates along annular guide portion or arc line section guide portion and drives the cutter and realize annular cutting.

Further, circumference rotary mechanism still including being used for the drive to rotate the power spare along pending pipe fitting circumferential motion, the power spare is connected on support piece or rotation piece, need not the manual drive and rotates the piece and move, realizes automatic cutout, raises the efficiency, reduces artifical intensity of labour.

Furthermore, feed mechanism set up on rotating the piece, the cutter connect on feed mechanism, the volume of advancing, moving back the sword of control that can be convenient, accurate ensures the cutting quality, also can effectively avoid the cutter impaired, increase of service life.

Furthermore, the feeding mechanism is a screw rod pair, the structure is simple, the implementation is convenient, the feeding amount and the retracting amount can be accurately and stably controlled, the screw rod pair has a self-locking function, and the stable feeding amount position of the cutter can be kept in the cutting process, so that the cutting quality is guaranteed, and the cutter is prevented from being damaged.

Furthermore, the automatic feed assembly for driving the screw rod of the screw rod pair to rotate is further arranged, manual operation is not needed, automatic feed can be achieved in the cutting process, and labor intensity is reduced.

Furthermore, the automatic feed subassembly include the gear that sets up on the vice lead screw of lead screw and be used for stirring the rotatory piece of stirring of gear that sets up on support piece, pure mechanical linkage structure need not electric drive, when rotating the piece and stirring a position along the circumferential motion of pending pipe fitting, the gear with stir the piece contact, the gear is stirred by stirring the piece and then the vice lead screw of drive lead screw rotates the automatic feed that realizes the cutter, the action reliability is high, simple structure easily realizes.

Further, the feeding and retracting direction of the feeding mechanism is along the axial direction of the pipe to be processed, and the cutter is used for cutting the connecting area of the pipe to be processed in the radial direction. The cutting device is used for cutting off the radial connecting area of the pipe fitting to be processed, and the pipe fitting is not cut off in the axial direction, so that the pipe fitting is not required to be damaged, the integrity of the pipe fitting is guaranteed, and the pipe fitting can be reconnected for use.

Compared with the prior art, the invention has the advantages that:

the cutting device provided by the invention utilizes the cutter which moves along the circumferential direction of the pipe fitting to be processed to perform annular cutting on the radial connection area of the pipe fitting to be processed, the cutting precision is high, the quality is good, unnecessary damage to the pipe fitting to be processed is avoided, the quality and precision of reconnection of the pipe fitting are ensured, and the maintenance cost is reduced;

the cutting device disclosed by the invention is simple and compact in structure, small in occupied space, convenient to use, high in efficiency and low in cost, can be directly applied to a pipeline construction site, and effectively reduces the labor intensity of workers;

the direct erection is installed on the pipe fitting to be processed to guarantee cutting device that can be very convenient for the stable, accurate location of pipe fitting to be processed, and then guarantee the accuracy of the motion route of cutter, effectively guarantee the precision and the quality of cutting.

Drawings

FIG. 1 is a schematic side view of a cutting device;

FIG. 2 is a schematic perspective view of the cutting device;

fig. 3 is a schematic structural view of the automatic feed assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The cutting device disclosed by the embodiment of the invention can conveniently realize cutting and splitting of the sleeved pipe fitting, has high cutting efficiency, high precision and good quality, cannot damage the pipe fitting in the cutting process, guarantees the integrity of the pipe fitting, and guarantees the quality and precision of reconnection of the pipe fitting.

Example one

As shown in fig. 1 to 3, a cutting device mainly includes a tool 1, a circumferential rotation mechanism and a feeding mechanism 2, wherein the circumferential rotation mechanism drives the tool to rotate along the circumferential direction of a pipe a to be processed, and the feeding mechanism 2 drives the tool 1 to perform feeding and retracting.

In the embodiment, the circumferential rotating mechanism comprises a supporting piece 3 and a rotating piece 4, the supporting piece 3 is erected and fixed on a pipe fitting a to be processed, the rotating piece 4 is movably connected to the supporting piece 3 and rotates along the circumferential direction of the pipe fitting a to be processed, the feeding mechanism 2 is connected and fixed on the rotating piece 4 through a supporting plate, and the cutter 1 is connected to the feeding mechanism 2;

the supporting piece 3 is annular along the circumferential direction of the pipe fitting a to be processed, a plurality of abutting pieces 5 which are abutted against the circumferential wall surface of the pipe fitting a to be processed are arranged at intervals in the circumferential direction of the supporting piece 3, the abutting pieces 5 can be adjustable in the radial direction of the supporting piece 3, and the abutting pieces 5 can be telescopic assemblies such as air cylinders and hydraulic cylinders, so that the supporting piece 3 can be fixed on the pipe fitting a to be processed with different calibers, and the application range of the cutting device is enlarged;

in the embodiment, the support member 3 is annularly sleeved on the circumferential periphery of the pipe fitting a to be processed, the abutting member 5 is a bolt, a plurality of screw holes are formed in the circumferential direction of the support member 3 at intervals, and the bolt penetrating through the screw holes is screwed to enable the bolt to abut against the circumferential wall surface of the pipe fitting a to be processed, so that the support member 3 is fixed on the pipe fitting a to be processed, the structure is simple, the operation is convenient, the stability of the support member 3 can be effectively guaranteed, the stable and accurate positioning of the cutting device relative to the pipe fitting to be processed is realized, the stability and the accuracy of the movement process of a cutter are guaranteed, and the cutting quality is improved;

further, the rotating part 4 is in an annular shape along the circumferential direction of the pipe fitting a to be processed, the rotating part 4 is annularly sleeved on the circumferential periphery of the pipe fitting a to be processed and is movably connected to the supporting part 3, specifically, the supporting part is provided with an annular guide part along the circumferential direction of the pipe fitting to be processed, the annular guide part can be a guide groove arranged on the supporting part or a guide flange, and the rotating part is provided with a part matched with the annular guide part, so that the rotating part rotates along the annular guide part to drive the cutter to move along the circumferential direction of the pipe fitting a to be processed, and further, annular cutting is realized;

the circumferential rotating mechanism further comprises a power part 6 for driving the rotating part 4 to move along the circumferential direction of the pipe fitting a to be treated, in the embodiment, the power part 6 is connected to the supporting part 3, the power part 6 comprises a motor and a transmission assembly connected to an output shaft of the motor, and a gear ring matched with the transmission assembly for transmission is arranged on the rotating part 4, so that the rotating part 4 is driven to move along the circumferential direction of the pipe fitting a to be treated when the motor operates; the power member 6 may also be arranged on the rotating member 4, in which case the supporting member 3 is provided with a gear ring for driving the transmission assembly, and the motor drives the rotating member 4 to move along the circumferential direction of the pipe a to be treated when operating.

The feeding mechanism 2 adopts a linear motion mechanism, so that a cutter can be conveniently and accurately driven to feed and retract to control the cutting depth, the feeding mechanism 2 can adopt a hydraulic cylinder, an air cylinder and the like, in the embodiment, the feeding mechanism 2 adopts a screw rod pair, the structure of the screw rod pair is simple, the screw rod pair can apply enough feeding acting force, so that the cutting efficiency is ensured, the screw rod pair has a self-locking function, the stable feeding amount position of the cutter can be kept in the cutting process, the cutting quality is ensured, and the cutter is prevented from being damaged;

the cutting device is also provided with an automatic feed assembly for driving a screw rod of the screw rod pair to rotate, manual operation is not needed, automatic feed can be realized in the cutting process, the labor intensity is reduced, the automatic feed assembly can adopt a motor connected with the screw rod of the screw rod pair, the implementation is convenient, but the motor needs an additional driving power supply for working, a battery or a power supply line is needed, the structure is complex, and the use cost is high;

in this embodiment, the automatic feeding assembly comprises a gear 7 arranged on a screw rod of the screw rod pair and a stirring member 8 arranged on the support member 3 and used for stirring the gear 7 to rotate, the stirring member 8 is in a convex tooth shape meshed with the gear 7, the stirring member 8 is kept stationary at the circumferential position of the support member 3, specifically, only one stirring member 8 is arranged in the whole circumferential direction of the support member 3, that is, the gear 7 is contacted with the stirring member 8 once when the rotating member 4 moves for a circle along the circumferential direction of the pipe a to be processed, the gear 7 is stirred by the stirring member 8 to drive the screw rod of the screw rod pair to rotate to realize automatic feeding of the cutter, that is, the cutter cuts a circle of automatic feeding once along the circumferential direction of the pipe a to be processed, so that manual feeding is not needed, the labor intensity is reduced, the structure is simple, a power supply is not needed, the implementation is convenient and the cost is low, the cutting depth can be ensured to be unchanged by cutting once with one-time automatic feeding, the durability of the cutter is high, and the system is stable; of course, a plurality of stirring pieces 8 can be arranged at intervals in the circumferential direction of the supporting piece 3, so that the cutter can automatically feed for a plurality of times when cutting a circle along the circumferential direction of the pipe fitting a to be processed;

in this embodiment, the axial direction of the screw pair is along the axial direction of the pipe a to be treated, that is, the tool advance and retreat direction is along the axial direction of the pipe a to be treated, the tool 1 may be a cutting tool made of cemented carbide, the tool 1 is in contact with the radial connection region of the pipe a to be treated, that is, the tool 1 is used for cutting the radial connection region of the pipe a to be treated, the screw pair drives the tool 1 to advance after the tool cuts a circle along the circumferential direction of the pipe a to be treated, and after the tool moves several circles along the circumferential direction of the pipe a to be treated, the tool cuts the entire radial connection region of the pipe a to be treated.

Example two

The difference from the first embodiment is that the support member is a component which is erected and fixed on the pipe fitting to be processed through a clamp or other methods, the support member can be of any structure, and an arc-shaped guide part along the circumferential direction of the pipe fitting to be processed is arranged on the support member;

the arc guide part can be a guide groove arranged on the supporting piece, and can also be a guide flange, and a part matched with the arc guide part is arranged on the circular rotating part, so that the rotating part moves along the arc guide part to drive the cutter to move along the circumferential direction of the pipe fitting to be processed, and annular cutting is realized.

EXAMPLE III

The first embodiment is different from the first embodiment in that the rotating part is an arc-segment structure along the circumferential direction of the pipe to be processed, the power part is arranged on the rotating part, in this case, a gear ring which is in transmission with the power part is arranged on the annular supporting part, and similarly, the power part drives the rotating part to move along the circumferential direction of the pipe to be processed when in operation, so that annular cutting is realized.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.

Claims

1. The utility model provides a cutting device, characterized in that, includes cutter (1), circumference rotary mechanism and feed mechanism (2), circumference rotary mechanism drive the cutter is along pending pipe fitting (a) circumferential direction, feed mechanism (2) drive cutter (1) carry out the feed and move back the sword.

2. The cutting device according to claim 1, characterized in that the peripheral rotation mechanism comprises a support member (3) and a rotation member (4), the support member (3) is mounted and fixed on the pipe (a) to be treated, the rotation member (4) is movably connected to the support member (3) and rotates along the circumference of the pipe (a) to be treated, and the cutter (1) is arranged on the rotation member (4).

3. The cutting device according to claim 2, characterized in that the support element (3) is annular in the circumferential direction of the pipe (a) to be treated, and a plurality of abutment elements (5) are provided at intervals in the circumferential direction for abutment against the circumferential wall of the pipe (a) to be treated.

4. A cutting device according to claim 2, characterized in that the rotating member (4) is annular in the circumferential direction of the pipe (a) to be treated.

5. A cutting device according to claim 2, wherein the peripheral rotation mechanism further comprises a power member (6) for driving the rotation member (4) in a peripheral direction along the pipe (a) to be treated, the power member (6) being connected to the support member (3) or the rotation member (4).

6. A cutting device according to claim 2, characterized in that the feed mechanism (2) is arranged on a rotary member (4), and the tool (1) is connected to the feed mechanism (2).

7. A cutting device according to claim 6, characterized in that the feed mechanism (2) is a screw pair.

8. A cutting device according to claim 7, wherein an automatic feed assembly is provided for driving the screw of the screw pair in rotation.

9. A cutting device according to claim 8, characterized in that the automatic feed assembly comprises a gear (7) arranged on the screw of the screw pair and a toggle member (8) arranged on the support member (3) for toggling the gear (7) in rotation.

10. The cutting device according to any one of claims 1 to 9, characterized in that the feed and retraction direction of the feed mechanism (2) is along the axial direction of the pipe (a) to be treated, and the knife (1) is used for cutting the radial connecting area of the pipe (a) to be treated.