CN109465486B - Extrusion type pipe cutting machine tool - Google Patents
Extrusion type pipe cutting machine tool Download PDFInfo
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- CN109465486B CN109465486B CN201910023408.3A CN201910023408A CN109465486B CN 109465486 B CN109465486 B CN 109465486B CN 201910023408 A CN201910023408 A CN 201910023408A CN 109465486 B CN109465486 B CN 109465486B
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- bevel gear
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D21/00—Machines or devices for shearing or cutting tubes
- B23D21/04—Tube-severing machines with rotating tool-carrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
- B23Q3/064—Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding elongated workpieces, e.g. pipes, bars or profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/04—Work clamping means using fluid means or a vacuum
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sawing (AREA)
- Drilling And Boring (AREA)
Abstract
The invention belongs to the technical field of machine tools, and relates to a machine tool for cutting pipes in a cold extrusion mode. The device comprises a fixed rack, wherein the left end of the fixed rack is provided with two bearing seats in parallel, the right side surface of the right bearing seat is fixedly connected with a large conical gear ring, and the bearing seats are embedded with connecting sleeves; the power unit is used for driving the connecting sleeve to rotate, is arranged on the fixed rack and is connected with the left end of the connecting sleeve; the cutting head is provided with a base and a shell, the base is connected with the right end of the connecting sleeve and rotates along with the connecting sleeve, a plurality of clamping grooves for clamping a spiral rack are symmetrically formed in the shell, and a circular cutter is arranged at the inner end of the spiral rack through a supporting shaft; and the gear set is arranged on the cutting head and moves relative to the large bevel gear ring when the cutting head rotates so as to drive the spiral rack to move on the cutting head in the radial direction. The invention relates to a full-automatic chipless extrusion type metal pipe cutting machine tool, which avoids dust pollution, smoke pollution, waste liquid pollution, noise pollution and the like and is more beneficial to environmental protection.
Description
Technical Field
The invention belongs to the technical field of machine tools, and particularly relates to a machine tool for cutting pipes, in particular to a machine tool for cutting pipes in a cold extrusion mode.
Background
A pipe cutter is a mechanical device. The method is widely applied to pipeline installation engineering, pipeline overhaul and the like of petroleum, chemical industry, electric power, natural gas, metallurgy, shipbuilding, boiler, pharmacy, water treatment and other industries and newly-built projects. There are two basic forms of pipe cutting machines currently on the market: a manual grinding wheel type pipe cutting machine; one is a pipe cutter in the form of a lathe. Today, the global environment is getting more and more attention, and environmental protection is getting more and more attention from the country, however, two pipe cutting machines of the prior art respectively have places which are not suitable for environmental protection and worker health.
The manual grinding wheel type pipe cutting machine can cause serious acoustic pollution and dust pollution during cutting, and can bring serious physical injury to operators after long-time operation. When the grinding wheel type cutter contacts the metal pipe, sharp squeaking can be generated, and serious noise pollution is caused to the environment; in the cutting process of the grinding wheel type cutter, tiny metal particles ground off can float in the atmosphere for a long time together with tiny sand dust removed by the grinding wheel type cutter and smoke generated in the grinding process, so that serious harm is brought to the atmospheric environment. The incision also produces a hardening that is not easy to work with.
Pipe cutting machines in the form of lathes also produce relatively severe acoustic pollution during cutting. Because the machining is to use cutting blades for turning, cutting fluid is needed in the cutting process, and used cutting fluid can cause serious pollution to the environment in the treatment process. The pipe cutting machine in the lathe form can produce scrap iron and splash when cutting, can bring the injury to operating personnel.
All pipe cutting machines in lathe forms on the market have the defects of high production labor intensity and low efficiency, and cannot meet the production requirement of fast rhythm.
Disclosure of Invention
In view of the above, the embodiment of the invention provides an extrusion type pipe cutting machine tool, which aims to solve the problems of high labor intensity, low efficiency, easy hardening of a notch, easy generation of various pollutions and the like when cutting pipes in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
an extrusion tubing cutter machine comprising:
the left end of the fixed rack is provided with two bearing seats in parallel, the right side surface of the right bearing seat is fixedly connected with a large bevel gear ring, the large bevel gear ring is coaxial with the bearing seats, and a connecting sleeve is embedded in the bearing seats;
the power unit is arranged on the fixed rack and connected with the left end of the connecting sleeve, and is used for driving the connecting sleeve to rotate;
the cutting head is provided with a base and a shell, the base is connected with the right end of the connecting sleeve and rotates along with the connecting sleeve, and a plurality of clamping grooves for clamping the spiral racks are symmetrically formed in the shell; the inner end of the spiral rack is provided with a circular cutter through a supporting shaft;
the gear set is arranged on the cutting head and moves relative to the large bevel gear ring when the cutting head rotates so as to drive the spiral rack to move on the cutting head in the radial direction.
Further, the gear sets comprise a driving gear set and a transmission gear set;
the driving gear set is arranged outside the cutting head and moves relative to the large bevel ring to rotate when the cutting head rotates;
the drive gear set is arranged in the cutting head, transmits the rotation of the drive gear set to the inside of the cutting head, and drives the spiral rack to move on the cutting head in the radial direction when the cutting head rotates.
Further, the transmission gear set comprises a spiral conical tooth ring and a spiral bevel pinion;
the spiral bevel gear ring is embedded in the shell and coaxial with the shell, the right side surface of the spiral bevel gear ring is a plane and provided with spiral straight teeth for driving the spiral racks to move radially, and the left side surface of the spiral bevel gear ring is a conical surface and provided with bevel teeth;
the spiral bevel pinion is arranged on the shell and meshed with the bevel gear on the left side face of the spiral bevel gear ring, and when the cutting head rotates, the spiral bevel pinion is driven to rotate by the driving gear set.
Further, the driving gear set comprises a bevel pinion, a bevel pinion and a bevel gear;
the small bevel gear is meshed with the large bevel gear ring and rotates around the large bevel gear ring when the cutting head rotates;
the bevel pinion is connected with the bevel pinion and is arranged on a gear shaft bracket of the base through a first gear shaft;
the big bevel gear is meshed with the small bevel gear and is connected with the spiral small bevel gear in the transmission gear set through a second gear shaft, and the second gear shaft is connected in the shaft seat on the shell in a penetrating way.
Further, the transmission gear set further comprises a plurality of driven spiral bevel pinions arranged on the shell;
the driven spiral bevel pinion is meshed with the bevel gear on the left side surface of the spiral bevel gear ring, and a gear shaft of the driven spiral bevel pinion is embedded in a shaft seat on the shell;
the spiral bevel pinion and the driven spiral bevel pinion are symmetrically arranged on the shell.
Further, the power unit comprises a large belt pulley, a small belt pulley and a motor;
the large belt wheel is connected with the left end of the connecting sleeve;
the small belt wheel is connected with a power output shaft of the motor and is connected with the large belt wheel through a triangular belt.
Further, a clamping mechanism is arranged on the right side of the cutting head and comprises a clamping cylinder bracket and a clamping cylinder;
the lower end of the clamping cylinder bracket is fixedly connected with the fixed rack through a first cushion block;
the clamping cylinder is vertically arranged on the clamping cylinder bracket, a piston rod of the clamping cylinder moves downwards, and a first clamping head matched with the first cushion block is arranged at the end part of the clamping cylinder.
Further, a feeding mechanism consisting of a clamping device and a feeding device is arranged on the right side of the clamping mechanism, and the clamping device is used for clamping the pipe and conveying the pipe to a cutting station under the driving of the feeding device;
the clamping device comprises a clamping cylinder bracket and a clamping cylinder;
the lower end of the clamping cylinder bracket is connected with the feeding device through a second cushion block;
the clamping cylinder is vertically arranged on the clamping cylinder bracket, the piston rod of the clamping cylinder moves downwards, and a second clamping head matched with the second cushion block is arranged at the end part of the clamping cylinder.
Further, the feeding device comprises a linear guide rail and a feeding cylinder;
the linear guide rail is arranged on the fixed rack on the right side of the clamping mechanism, the axial direction of the linear guide rail is parallel to the axial direction of the connecting sleeve, and the linear guide rail is provided with a sliding block connected with a second cushion block for clamping the cylinder bracket;
the feeding cylinder is fixed on a fixed rack on the right side of the linear guide rail through a feeding cylinder bracket, and a feeding cylinder piston rod of the feeding cylinder is connected with the sliding block and drives the sliding block to move on the linear guide rail.
Further, the clamping mechanism and the feeding mechanism are powered by a compressed air system, and the machine tool further comprises a PLC control system.
By adopting the technical scheme, the invention has the following technical progress:
the invention provides an extrusion type pipe cutting machine tool, which is a full-automatic chipless extrusion type metal pipe cutting machine tool. The outstanding technical effects mainly include the following points: firstly, the biggest advantage of lathe is chipless cutting, does not use traditional emery wheel saw bit cutting tool, can not produce because of the dust that the emery wheel saw bit drops and produces, does not grind the metal micro-particles etc. smear metal that gets off yet, has stopped the dust pollution that the abrasive disc cutting machine produced, smog pollution. Secondly, cutting fluid is not used in the cutting process, the post-treatment process of the used cutting waste fluid is omitted, and waste fluid pollution is avoided. Thirdly, the cutting process of the circular cutter is a cold extrusion process, so that the noise in the cutting process is low, and noise pollution is avoided.
The cutting machine tool provided by the invention is more beneficial to environmental protection, is beneficial to the protection of the health of workers, completely meets the environmental protection requirement, and can adapt to the current increasingly serious environmental protection situation because common pollution sources in the mechanical processing industries such as dust pollution, smoke pollution, waste liquid pollution, noise pollution and the like are eliminated.
Meanwhile, the cut of the pipe cut by the machine tool is smooth, the temperature of the cut in the cold extrusion process cannot be increased, the material of the cut cannot be hardened, the pipe is easy to carry out secondary processing, and the problem of hardening of the cutting edge of the traditional cutting process is solved.
The technical effects are mainly realized by the following detailed technical improvements:
the cutting process of the invention is as follows: the pipe passes through the cutting head and the connecting sleeve, the pipe is fixed during cutting, the cutting head rotates and drives the spiral rack to radially move, and the circular cutter cuts off the pipe through cold extrusion. The specific cutting process comprises a feeding process and a retracting process, wherein one feeding process and one retracting process are a complete cutting process.
For the feeding process, the following feeding operation/action links are mainly completed: 1) The PLC control system controls the motor to rotate clockwise to drive the small belt pulley to rotate, and the small belt pulley drives the large belt pulley through the triangular belt; 2) The large belt wheel drives the cutting head to rotate clockwise through the connecting sleeve; 3) The bevel pinion rotates clockwise with the bevel pinion along with the cutting head; 4) The small bevel gear is used as a planet gear and rotates around the large bevel gear ring used as a sun gear along the clockwise direction; 5) The bevel pinion rotates under the drive of the bevel pinion; 6) The small bevel gear drives the large bevel gear meshed with the small bevel gear to rotate; 7) The big bevel gear drives the spiral bevel pinion to rotate; 8) The spiral bevel pinion drives the spiral bevel gear ring to rotate and drives the driven spiral bevel pinion to rotate; 9) The spiral bevel gear ring drives a spiral rack meshed with the spiral bevel gear ring to move inwards along the radial direction of the cutting head, and drives the cutter to extrude and cut the round tube to be cut. In the links of the feeding process, the links 3) to 6) are the action process of the driving gear set; links 7) to 9) are the course of action of the drive gear set. The above description is only for the purpose of detailing the feeding process, and is not a specific limitation on the structure of the driving gear set and the driving gear set, and any structure capable of realizing the function of the gear set is within the scope of the present invention.
For the retracting process, the following retracting operation/action links are mainly completed: 1) When the sensor detects that the cutter cuts off the pipe, the PLC control system sends out a signal, and the motor rotates anticlockwise and drives the cutting head to rotate anticlockwise; 2) The driving gear set and the driving gear set in the gear set do reverse rotation, and the spiral rack moves outwards along the radial direction of the cutting head to drive the cutter to be far away from the cut round tube.
The clockwise rotation of the cutting head is a feeding process, the anticlockwise rotation is a retracting process, only the technical scheme is described, but the technical scheme is not limited, and the corresponding relation between the clockwise/anticlockwise rotation and the feeding/retracting process of the cutting head can be changed by changing the spiral direction of the spiral straight teeth on the spiral conical tooth ring.
The invention adopts the small bevel gear and the large bevel gear ring to be matched with each other, and the small bevel gear and the large bevel gear of the large helix angle cylindrical helical teeth are matched with each other to be used as a driving gear set, so that the gear is stable in driving, strong in power output and low in noise.
The invention adopts the plane spiral gear rack formed by the spiral bevel pinion, the spiral bevel gear ring and the spiral rack as the transmission gear set, the force increasing effect of the transmission system on the cutting tool bit is very strong, and one spiral bevel pinion and a plurality of driven spiral bevel pinion are meshed with the spiral bevel gear ring, thereby playing the roles of power split and power stabilization, and the power transmission is smoother.
According to the invention, the PLC control system is adopted to automatically control the cutting process, the pneumatic clamping mechanism is adopted to fix the pipe, the pneumatic feeding mechanism is adopted to automatically feed, the length of the cut pipe is adjustable, the size is accurate, the labor intensity of workers can be reduced, and the operation is more convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a schematic structural view of an extrusion type pipe cutting machine tool according to an embodiment of the present invention;
fig. 2 is an assembly schematic diagram of a connecting sleeve according to an embodiment of the present invention;
FIG. 3 is an assembled schematic view of a power unit provided by an embodiment of the present invention;
FIG. 4 is a schematic view of an assembly of a cutting head provided in an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a cutting head according to an embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating an assembly of a drive gear set according to an embodiment of the present invention;
FIG. 7 is a second schematic diagram of an assembly of a drive gear set according to an embodiment of the present invention;
FIG. 8 is a schematic diagram illustrating an assembly of a drive gear set according to an embodiment of the present invention;
FIG. 9 is a second schematic diagram illustrating assembly of a drive gear set according to an embodiment of the present invention;
FIG. 10 is an assembled schematic view of a clamping mechanism provided by an embodiment of the present invention;
FIG. 11 is an assembled schematic view of a clamping device according to an embodiment of the present invention;
fig. 12 is an assembly schematic of a feeding device according to an embodiment of the present invention.
Reference numerals illustrate:
10-a fixed rack, 11-a bearing seat, 12-a large conical gear ring and 13-a connecting sleeve;
20-a power unit, 21-a large belt pulley, 22-a small belt pulley, 23-a V-belt and 24-a motor;
30-cutting heads, 31-bases, 311-gear shaft supports, 32-shells, 321-clamping grooves, 322-shaft seats, 33-spiral racks, 331-circular cutters, 332-supporting shafts and 333-arc straight teeth;
40-driving gear sets, 41-spiral bevel gear rings, 411-spiral straight teeth, 412-bevel teeth, 42-spiral bevel pinions and 43-driven spiral bevel pinions;
50-a driving gear set, 51-a small bevel gear, 511-a first gear shaft, 52-a small bevel gear, 53-a large bevel gear and 531-a second gear shaft;
60-clamping mechanism, 61-clamping cylinder bracket, 611-first cushion block, 62-clamping cylinder, 621-clamping cylinder piston rod, 622-first clamping head;
70-feeding mechanism, 71-clamping cylinder bracket, 711-second cushion block, 72-clamping cylinder, 721-clamping cylinder piston rod, 722-second clamping head, 73-linear guide rail, 731-slide block, 74-feeding cylinder, 741-feeding cylinder bracket, 742-feeding cylinder piston rod;
80-pipe material.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to illustrate the technical scheme of the invention, the following description is made by specific examples.
The embodiment of the invention provides an extrusion type pipe cutting machine, and referring to fig. 1, the pipe cutting machine comprises a fixed rack 10, a power unit 20, a cutting head 30 and a gear set, wherein the cutting head 30 is driven by the power unit 20 to rotate, the gear set drives a spiral rack 33 on the cutting head 30 to move on the cutting head 30 along the radial direction, and a circular cutter 331 at the end part of the spiral rack 33 extrudes the surface of a pipe 80, so that the pipe 80 is cut off.
The extrusion type pipe cutting machine tool provided by the embodiment of the invention can cut pipes of various materials commonly used at present, such as steel pipes, iron pipes, copper pipes and the like commonly used in the field of machining; galvanized steel pipes, copper pipes, aluminum-plastic composite pipes, ABS plastic pipes, polyethylene pipes, polypropylene pipes and the like as water supply pipes; steel pipes as drain pipes, cast iron pipes, GPR polyester resin pipes, HOBAS centrifugally cast glass fiber reinforced polyester resin pipes, polyethylene pipes, PVC plastic pipes, and the like; galvanized steel pipes, CPVC plastic pipes, ABS plastic pipes, polyethylene pipes, etc. as heating/gas pipes; magnetic tubes, aluminum-plastic composite tubes, etc. as wire casings; iron skin pipes, cast iron pipes, aluminum-plastic composite pipes, PE plastic pipes and the like as rain pipes. The invention is especially suitable for the pipe made of metal, has more remarkable environmental protection effect during cutting, and is especially suitable for round steel pipes and the pipe with regular polygonal cross section, and has poorer cutting effect on the pipe with special-shaped cross section.
Referring to fig. 2, the fixed rack 10 performs a supporting function, a bearing seat 11 is provided on the fixed rack 10, the bearing seat 11 is usually an outer spherical bearing seat, the number of the bearing seats 11 is two, and the bearing seats are arranged in parallel at the left end of the fixed rack 10. The right side surface of the bearing seat 11 positioned on the right side is fixedly connected with a large bevel gear ring 12, the large bevel gear ring 12 is a straight bevel gear ring, and the large bevel gear ring 12 and the bearing seat 11 are coaxially arranged. The connecting sleeves 13 are embedded in the bearing blocks 11, the connecting sleeves 13 are of cylindrical structures, the two bearing blocks 11 support the connecting sleeves 13, the connecting sleeves 13 can rotate in the shaft sleeves of the bearing blocks 11, and the connecting sleeves 13 play a role in transmission.
Referring to fig. 3, the power unit 20 is configured to drive the connecting sleeve 13 to rotate, and the power unit 20 is disposed on the stationary gantry 10 and connected to the left end of the connecting sleeve 13. The power unit 20 comprises a large belt pulley 21, a small belt pulley 22 and a motor 24, wherein the large belt pulley 21 is round, and the edge of the large belt pulley is provided with a belt groove and is connected with the left end of the connecting sleeve 13; the small belt wheel 22 is also round, and the edge of the small belt wheel is provided with a belt groove and is connected with a power output shaft of the motor 24; the large belt pulley 21 and the small belt pulley 22 are connected through a V-belt 23. The large belt pulley 21, the small belt pulley 22 and the belt 23 all play a role in transmission, so that the motor 24 drives the connecting sleeve 23 to rotate. The power unit 20 is controlled by a PLC control system to operate, specifically, to control clockwise rotation (forward rotation), counterclockwise rotation (reverse rotation), and rotational speed of the motor 24.
As shown in fig. 4 and 5, the cutting head 30 has a hollow cylindrical shape, and has a base 31 and a housing 32, the base 31 is connected to the right end of the connecting sleeve 13, and the base 31 rotates with the connecting sleeve 13, thereby rotating the entire cutting head 30. A plurality of clamping grooves 321 are symmetrically arranged on the shell 32, and the clamping grooves 321 are used for clamping the spiral racks 33 and playing a role in guiding radial movement of the spiral racks 33; the number of the clamping grooves 321 is 3 to 5, preferably 3. The inner end of the worm rack 33 is provided with a circular cutter 331 through a support shaft 332, the circular cutter 331 can rotate around the support shaft 332, and the circular cutter 331 is in direct contact with the surface of the pipe 80.
A gear set is provided on the cutting head 30 that moves relative to the large bevel ring 12 as the cutting head 30 rotates, driving the worm gear 33 to move radially on the cutting head 30. The circular cutter 331 applies a cold pressing action to the surface of the pipe 80 as the spiral rack 33 moves toward the center of the housing 32 along the catching groove 321.
As one example, the gear sets include a drive gear set 50 and a drive gear set 40. The driving gear set 50 is composed of a plurality of gears arranged outside the cutting head 30, and when the cutting head 30 rotates, one gear in the driving gear set 50 and the large conical ring 12 relatively move to rotate, so that other gears in the driving gear set 50 are driven to rotate.
The gear train 40 is composed of a plurality of gears provided inside the cutting head 30, one gear of the gear train 40 transmitting the rotation of the gears of the drive gear train 50 to the inside of the cutting head 30, the gears of the gear train 40 driving the worm rack 33 to move radially on the cutting head 30 as the cutting head 30 rotates.
The specific number, type, combination mode and the like of the gears in the driving gear set 50 and the driving gear set 40 can be specifically selected according to practical situations, and as long as the functions, action principles, action processes and the like of the driving gear set 50, the driving gear set 40 or the gear sets are the same as those of the technical scheme of the invention, the driving gear set 50, the driving gear set 40 or the gear sets belong to the protection scope of the invention.
As one example, the drive gear set 40 of an embodiment of the present invention includes a spiral bevel gear ring 41, a spiral bevel pinion 42.
As shown in fig. 5, 6 and 7, the housing 32 is omitted from fig. 6 and 7 for convenience in describing the assembly relationship of the drive gear set, and the spiral bevel gear ring 41 is embedded in the housing 32 and is disposed coaxially with the housing 32. The right side surface of the spiral bevel gear ring 41 is a plane, spiral straight teeth 411 are arranged on the right side surface, arc straight teeth 333 matched with the spiral straight teeth 411 are arranged on the spiral rack 33, and when the spiral bevel gear ring 41 rotates, the spiral rack 33 can be driven to move along the radial direction. The left side surface of the spiral bevel gear ring 41 is a conical surface, and the bevel gear 412 is arranged on the left side surface, and the bevel gear 412 is meshed with the spiral bevel pinion 42.
The spiral bevel pinion 42 is disposed on the housing 32, and the spiral bevel pinion 42 is engaged with the bevel gear 412 on the left side of the spiral bevel gear ring 41, and when the cutting head 30 rotates, the spiral bevel pinion 42 is driven to rotate by the driving gear set 50, so as to drive the spiral bevel gear ring 41 to rotate, and further drive the spiral rack 33 to move in the radial direction.
In this embodiment, the driving gear set 40 further includes a plurality of driven spiral bevel pinions 43 disposed on the housing, and the number of driven spiral bevel pinions 43 is 2-5, preferably 2.
Referring to fig. 7, for convenience in describing the assembly relationship of the drive gear set, the housing 32 is omitted in fig. 7, and the gear shaft of the driven spiral bevel pinion 43 is embedded in the shaft seat 322 on the housing 32, and the spiral bevel pinion 42 and the driven spiral bevel pinion 43 are symmetrically disposed on the housing. The driven spiral bevel pinion 43 is meshed with the bevel gear 412 on the left side face of the spiral bevel gear ring 41, and one spiral bevel pinion 42 and a plurality of driven spiral bevel pinion 43 are meshed with the spiral bevel gear ring 41, so that the functions of power split and power stabilization are achieved, and the power transmission is smoother.
As an example, the drive gear set 50 of the embodiment of the present invention includes a bevel pinion 51, a bevel pinion 52, and a bevel gear 53.
As shown in fig. 5, 8 and 9, in order to facilitate description of the assembly relationship of the transmission gear set, the housing 32 is omitted in fig. 8 and 9, the bevel pinion 51 is engaged with the large bevel ring 12, the bevel pinion 51 is connected with the bevel pinion 52 through the first gear shaft 511, and the first gear shaft 511 is mounted on the gear shaft bracket 311 of the base 31; when the cutting head 30 rotates, the bevel pinion 51 rotates as a planetary gear around the large bevel ring 12 as a sun gear, and the bevel pinion 51 rotates around the first gear shaft 511, driving the bevel pinion 52 to also rotate around the first gear shaft 511.
The bevel pinion 52 is meshed with the bevel pinion 53. The bevel pinion 53 is connected to the bevel pinion 42 of the gear set 40 by a second gear shaft 531. The second gear shaft 531 is threaded into the shaft mount 322 of the housing 32. When the cutting head 30 rotates, the small helical gear 52 rotates to drive the large helical gear 53 to rotate, the large helical gear 53 drives the small helical gear 42 to rotate, and the small helical gear 42 drives the helical bevel gear ring 41 to rotate, so as to drive the helical rack 33 to move along the radial direction.
As an embodiment, a clamping mechanism 60 is provided on the right side of the cutting head of the embodiment of the present invention, and includes a clamping cylinder bracket 61 and a clamping cylinder 62.
As shown in fig. 10, a first pad 611 is provided at the lower end of the clamping cylinder bracket 61, and the first pad 611 is fixedly connected with the stationary gantry 10. The clamping cylinder 62 is vertically arranged on the clamping cylinder bracket 61, the end part of the clamping cylinder piston rod 621 is provided with a first clamping head 622, the first clamping head 622 is matched with the first cushion block 611, and when the clamping cylinder piston rod 621 moves downwards, the first clamping head 622 and the first cushion block 611 clamp the pipe 80.
In this embodiment, the clamping mechanism 60 is powered by a compressed air system and is controlled by a PLC control system to complete the clamping action.
As an example, a feeding mechanism 70 composed of a gripping device and a feeding device is provided on the right side of the gripping mechanism 60 of the embodiment of the present invention. The clamping device is used for clamping the pipe 80 and conveying the pipe 80 to the cutting station under the drive of the feeding device, and comprises a clamping cylinder bracket 71 and a clamping cylinder 72.
As shown in fig. 11, a second spacer block 711 is provided at the lower end of the clamping cylinder bracket 71, and the second spacer block 711 is connected to the feeding device. The clamping cylinder 72 is vertically arranged on the clamping cylinder bracket 71, the end of the clamping cylinder piston rod 721 is provided with a second clamping head 722, the second clamping head 722 is matched with a second cushion block 711, and when the clamping cylinder piston rod 721 moves downwards, the second clamping head 722 and the second cushion block 711 clamp the pipe 80.
In this embodiment, the clamping device of the feeding mechanism 70 is powered by a compressed air system and is controlled by a PLC control system to complete the clamping action.
As an example, the feeding device of the feeding mechanism 70 of the embodiment of the present invention includes a linear guide 73, a feeding cylinder 74.
Referring to fig. 12, a linear guide 73 is provided on the stationary gantry 10 on the right side of the clamping mechanism 60, the axial direction of the linear guide 73 is parallel to the axial direction of the connecting sleeve 13, a slider 731 is provided on the linear guide 73, and the slider 731 is connected to a second pad 711 of the clamping cylinder bracket 71. The feed cylinder 74 is fixed to the fixed mount 10 on the right side of the linear guide 73 by a feed cylinder bracket 741, and a feed cylinder piston rod 742 of the feed cylinder 74 is connected to the slide 731, and the slide 731 is driven to move on the linear guide 73 by the telescopic movement of the feed cylinder piston rod 742.
In this embodiment, the feeding device of the feeding mechanism 70 is powered by a compressed air system and is controlled by a PLC control system to complete the feeding action.
In a complete cutting process, a corresponding complete feeding process is achieved, and the PLC control system mainly completes the control of the following operation/action links: 1) Controlling the air compressor to work and outputting compressed air; 2) After the primary manual feeding is performed to the cutting station, a control valve of a clamping cylinder is opened, and the clamping cylinder works to clamp a round pipe to be cut off; 3) After cutting is finished, the control valve of the clamping cylinder is closed, and the clamping cylinder is loosened; 4) The clamping cylinder control valve is opened, the clamping cylinder works, and the round tube to be cut off is clamped; 5) The feeding cylinder control valve is opened, the feeding cylinder works, and the pipe 80 to be cut is moved forwards to the cutting station under the pushing of the feeding cylinder piston rod; 6) The clamping cylinder control valve is opened, the clamping cylinder works, and a round tube to be cut off is clamped; 7) In the cutting process, the clamping cylinder is loosened, and the feeding cylinder is reset; 8) After cutting is completed, the actions from the step 3 to the step 7 are circulated, and cutting operation is automatically performed.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention.
Claims (4)
1. Extrusion formula tubular product cutting off machine, its characterized in that includes:
the left end of the fixed rack is provided with two bearing seats in parallel, the right side surface of the right bearing seat is fixedly connected with a large bevel gear ring, the large bevel gear ring is coaxial with the bearing seats, and a connecting sleeve is embedded in the bearing seats;
the power unit is arranged on the fixed rack and connected with the left end of the connecting sleeve, and is used for driving the connecting sleeve to rotate;
the cutting head is provided with a base and a shell, the base is connected with the right end of the connecting sleeve and rotates along with the connecting sleeve, and a plurality of clamping grooves for clamping the spiral racks are symmetrically formed in the shell; the inner end of the spiral rack is provided with a circular cutter through a supporting shaft;
the gear set is arranged on the cutting head and moves relative to the large bevel gear ring when the cutting head rotates so as to drive the spiral rack to move on the cutting head in the radial direction;
the gear set comprises a driving gear set and a transmission gear set;
the driving gear set is arranged outside the cutting head and moves relative to the large bevel ring to rotate when the cutting head rotates;
the transmission gear set is arranged in the cutting head, transmits the rotation of the driving gear set to the inside of the cutting head, and drives the spiral rack to move on the cutting head in the radial direction when the cutting head rotates;
the transmission gear set comprises a spiral conical gear ring and a spiral bevel pinion;
the spiral bevel gear ring is embedded in the shell and coaxial with the shell, the right side surface of the spiral bevel gear ring is a plane and provided with spiral straight teeth for driving the spiral racks to move radially, and the left side surface of the spiral bevel gear ring is a conical surface and provided with bevel teeth;
the spiral bevel pinion is arranged on the shell and meshed with the bevel gear on the left side surface of the spiral bevel gear ring, and is driven to rotate by the driving gear set when the cutting head rotates;
the driving gear set comprises a bevel pinion, a bevel pinion and a bevel gear;
the small bevel gear is meshed with the large bevel gear ring and rotates around the large bevel gear ring when the cutting head rotates;
the bevel pinion is connected with the bevel pinion and is arranged on a gear shaft bracket of the base through a first gear shaft;
the large bevel gear is meshed with the small bevel gear and is connected with the spiral small bevel gear in the transmission gear set through a second gear shaft, and the second gear shaft is connected in the shaft seat on the shell in a penetrating way;
the transmission gear set also comprises a plurality of driven spiral bevel pinions arranged on the shell;
the driven spiral bevel pinion is meshed with the bevel gear on the left side surface of the spiral bevel gear ring, and a gear shaft of the driven spiral bevel pinion is embedded in a shaft seat on the shell;
the spiral bevel pinion and the driven spiral bevel pinion are symmetrically arranged on the shell;
the power unit comprises a large belt pulley, a small belt pulley and a motor;
the large belt wheel is connected with the left end of the connecting sleeve;
the small belt wheel is connected with a power output shaft of the motor and is connected with the large belt wheel through a triangular belt;
the right side of the cutting head is provided with a clamping mechanism which comprises a clamping cylinder bracket and a clamping cylinder;
the lower end of the clamping cylinder bracket is fixedly connected with the fixed rack through a first cushion block;
the clamping cylinder is vertically arranged on the clamping cylinder bracket, a piston rod of the clamping cylinder moves downwards, and a first clamping head matched with the first cushion block is arranged at the end part of the clamping cylinder.
2. The extrusion die pipe cutting machine of claim 1 wherein,
the right side of the clamping mechanism is provided with a feeding mechanism consisting of a clamping device and a feeding device, wherein the clamping device is used for clamping a pipe and conveying the pipe to a cutting station under the driving of the feeding device;
the clamping device comprises a clamping cylinder bracket and a clamping cylinder;
the lower end of the clamping cylinder bracket is connected with the feeding device through a second cushion block;
the clamping cylinder is vertically arranged on the clamping cylinder bracket, the piston rod of the clamping cylinder moves downwards, and a second clamping head matched with the second cushion block is arranged at the end part of the clamping cylinder.
3. The extrusion die pipe cutting machine of claim 2 wherein,
the feeding device comprises a linear guide rail and a feeding cylinder;
the linear guide rail is arranged on the fixed rack on the right side of the clamping mechanism, the axial direction of the linear guide rail is parallel to the axial direction of the connecting sleeve, and the linear guide rail is provided with a sliding block connected with a second cushion block for clamping the cylinder bracket;
the feeding cylinder is fixed on a fixed rack on the right side of the linear guide rail through a feeding cylinder bracket, and a feeding cylinder piston rod of the feeding cylinder is connected with the sliding block and drives the sliding block to move on the linear guide rail.
4. The extrusion die pipe cutting machine according to claim 2 or 3, wherein,
the clamping mechanism and the feeding mechanism are powered by a compressed air system, and the machine tool further comprises a PLC control system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910023408.3A CN109465486B (en) | 2019-01-10 | 2019-01-10 | Extrusion type pipe cutting machine tool |
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| CN201910023408.3A CN109465486B (en) | 2019-01-10 | 2019-01-10 | Extrusion type pipe cutting machine tool |
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| CN109465486B true CN109465486B (en) | 2023-12-22 |
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| CN112157308B (en) * | 2020-10-09 | 2021-10-15 | 浙江农业商贸职业学院 | Round steel cutting machine tool and working method thereof |
| CN112756680A (en) * | 2020-12-18 | 2021-05-07 | 杭州智行远机器人技术有限公司 | Cutter assembly for nuclear industry pipe cutting equipment and nuclear industry pipe cutting equipment |
| CN112238254A (en) * | 2020-12-18 | 2021-01-19 | 杭州智行远机器人技术有限公司 | Control method for cutting radioactive solid waste for nuclear industry |
| CN112658372A (en) * | 2020-12-18 | 2021-04-16 | 杭州智行远机器人技术有限公司 | Remote control type cutting system for nuclear industry pipe |
| CN113458484A (en) * | 2021-07-03 | 2021-10-01 | 苏涛 | Large-diameter pipe cutting equipment |
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| FR2377264A1 (en) * | 1977-01-14 | 1978-08-11 | Sekisui Chemical Co Ltd | Cutting lengths of synthetic resin non-circular pipes - in which the cutters move around the pipe and are biased against it |
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