CN112338530B

CN112338530B - Electric automatic cutting equipment for pipes

Info

Publication number: CN112338530B
Application number: CN202011204741.3A
Authority: CN
Inventors: 江秀聪; 李墨爱; 徐梦差; 张振伟; 夏培涛; 季本源
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-10-08
Anticipated expiration: 2040-11-02
Also published as: CN112338530A

Abstract

The invention provides an electric automatic cutting device for a pipe, and mainly relates to the field of pipe processing. An electrical automatic pipe cutting device comprises a cutting machine, a correcting machine and a controller, wherein the cutting machine is used for cutting a clamped pipe into a tubular workpiece, the cut tubular workpiece is collected by the correcting machine, the correcting machine is used for finishing self correction, and the deformation of two ends of the workpiece caused by cutting is recovered, so that the workpiece with the dimensional tolerance meeting the standard is obtained. The controller is used as a master control unit and controls the pipe cutting of the cutting machine and the shape correcting action of the shape correcting machine. The invention has the beneficial effects that: the pipe cutting machine can be used for saw cutting a pipe and then calibrating the pipe, so that the deformation of the cut pipe can be reduced, and a tubular workpiece with qualified dimensional precision can be machined in a saw cutting mode.

Description

Electric automatic cutting equipment for pipes

Technical Field

The invention mainly relates to the field of pipe processing, in particular to an electric automatic cutting device for pipes.

Background

The cutting mode of the pipe mainly comprises modes of cutting by a punching machine, cutting by a sawing machine, cutting by a laser cutting machine and the like, wherein the two ends of the cut pipe can be obviously deformed after the pipe is cut by the punching machine, so that the cutting by the punching machine can only be used for thick-wall pipes with relaxed size requirements. The sawing blanking of the sawing machine can also generate certain deformation at the two ends of the pipe, and the efficiency is lower than that of a punching machine. The laser cutting machine can realize the cutting-off of the two ends of the pipe without deformation, but because the temperature is higher when the laser cutting machine cuts, the two ends of the pipe can generate oxide layers, which is not allowed on certain workpieces.

Aiming at the pipe which can not be cut off by a laser cutting machine and has strict requirements on cutting deformation, the integrated pipe cutting and calibrating equipment in the application is designed.

Disclosure of Invention

In order to solve the defects of the prior art, the invention provides the electric automatic pipe cutting equipment which can saw cut the pipe and then calibrate the pipe, so that the deformation of the cut pipe can be reduced, and the tubular workpiece with qualified size precision can be processed in a sawing mode.

In order to achieve the purpose, the invention is realized by the following technical scheme:

an electrical automatic pipe cutting device comprises a cutting machine, a calibration machine and a controller, wherein the cutting machine comprises a base, a feeding mechanism, a cutting die and a cutting tool apron;

the feeding mechanism comprises a servo motor, a transmission lead screw, a parallel guide rail, a feeding table and a clamping mechanism, the transmission lead screw is rotatably arranged on one side of the base along the length direction of the base, the parallel guide rail is arranged at the top of the base, the parallel guide rail is parallel to the transmission lead screw, the bottom of the feeding table is provided with a sliding seat in sliding fit with the parallel guide rail and a lead screw nut matched with the transmission lead screw, the servo motor is arranged at one end of the base and used for driving the transmission lead screw, the clamping mechanism is arranged at the top of the feeding table, and the clamping mechanism is used for clamping a pipe;

the cutting mold is arranged at the front end of the base, and the middle part of the cutting mold is a cavity allowing a pipe to pass through;

the cutting tool apron is arranged on one side of a cutting die and comprises a tool rest, a telescopic oil cylinder, a motor frame and a rotating motor, the tool rest is arranged on a base, the bottom of the telescopic oil cylinder is connected with the tool rest, the motor frame is fixedly connected to a piston rod of the telescopic oil cylinder, the rotating motor is arranged on the motor frame, a saw blade driven by the rotating motor is further arranged on the motor frame, and the saw blade is perpendicular to the axis of a pipe;

the shape correcting machine comprises a shape correcting shaft, an orthopedic support, a shape correcting oil cylinder and a shape correcting die;

the sizing shaft comprises a bearing section, a reducing section and a sizing section, the bearing section is coaxial with the cutting die, the sizing section is perpendicular to the horizontal plane, the reducing section is connected between the bearing section and the sizing section, the diameter of the bearing section is smaller than that of the sizing section, and the diameter of the sizing section is consistent with the inner diameter of the pipe;

the correcting device comprises a correcting shaft, correcting oil cylinders, a correcting mould, a piston rod and a correcting mould, wherein the correcting supports are arranged on the left side and the right side of the correcting shaft, the correcting oil cylinders are arranged in two, the two correcting oil cylinders are respectively arranged on the correcting supports on the two sides of the correcting shaft, a correcting cavity matched with the outline of a pipe is arranged on the correcting mould, the correcting mould is arranged on the piston rod of the correcting oil cylinder, when the two correcting oil cylinders are in an extending state, the two correcting moulds are in butt joint, and the channels of the two correcting cavities are consistent with the outer diameter of the pipe;

the servo motor, the telescopic oil cylinder, the rotating motor and the calibration oil cylinder are in signal connection with the controller.

Preferably, the clamping mechanism comprises a clamping frame arranged on the feeding table, a clamping oil cylinder is arranged at the bottom of the clamping frame, a clamping disc is arranged on a piston rod of the clamping oil cylinder, a fixing disc matched with the clamping disc is arranged on the top surface of the feeding table, and the pipe is clamped between the clamping disc and the fixing disc.

Preferably, the bottom of the correction section is provided with a supporting plate in a sliding mode, and the diameter of the supporting plate is larger than that of the pipe.

Preferably, the cutting die, the sizing shaft and the sizing die are all selected according to the diameter of the pipe.

Preferably, the calibration shaft is rotatable by an external force.

Compared with the prior art, the invention has the beneficial effects that:

according to the automatic pipe feeding and cutting device, automatic feeding and cutting of pipes are achieved through the cutting machine, the cut pipes are collected by the sizing machine, the sizing of the tubular workpiece is performed through the sizing die of the sizing machine, and deformation of two ends of the workpiece caused by sawing can be corrected, so that the dimensional tolerance requirement of the workpiece is met. The device replaces a laser cutting machine with higher precision, saves equipment cost, accelerates cutting efficiency, and avoids the generation of oxide layers at two ends of a workpiece and the use requirement of a composite workpiece.

Drawings

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

FIG. 2 is a schematic structural view of the main view state of the present invention;

FIG. 3 is a structural diagram of the present invention in a right-view state;

FIG. 4 is a partially enlarged structural view of the part A of the present invention;

FIG. 5 is a partially enlarged view of the part B of the present invention.

Reference numerals shown in the drawings: 1. a cutting machine; 11. a base; 12. a feeding mechanism; 121. a servo motor; 122. a drive screw; 123. parallel guide rails; 124. a feeding table; 125. a clamping mechanism; 126. a sliding seat; 127. a clamping frame; 128. clamping the oil cylinder; 129. clamping the disc; 130. fixing the disc; 13. cutting off the mold; 14. cutting off the cutter seat; 141. a tool holder; 142. a telescopic oil cylinder; 143. a motor frame; 144. a rotating electric machine; 145. a saw blade; 2. a shaping machine; 21. calibrating the shaft; 211. a receiving section; 212. a diameter-changing section; 213. a calibration section; 214. a support plate; 22. an orthopedic support; 23. a calibration oil cylinder; 24. calibrating the mold; 3. and a controller.

Detailed Description

The invention is further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.

As shown in fig. 1-5, the present invention provides an electrical automatic pipe cutting apparatus, which comprises a cutting machine 1, a calibrating machine 2 and a controller 3, wherein the cutting machine 1 is used for cutting a clamped pipe into a tubular workpiece, the cut tubular workpiece is collected by the calibrating machine 2, and the calibrating machine is used for completing self-calibration, so that the deformation of two ends of the workpiece caused by cutting is recovered, and the workpiece with a dimensional tolerance meeting the standard is obtained. The controller 3 serves as a master control unit for controlling the cutting of the pipe material by the cutting machine 1 and the calibration operation of the calibration machine 2.

The cutting machine 1 comprises a base 11, a feeding mechanism 12, a cutting die 13 and a cutting knife seat 14; the feeding mechanism 12 comprises a servo motor 121, a transmission screw 122, a parallel guide rail 123, a feeding table 124 and a clamping mechanism 125, the transmission screw 122 is rotatably arranged on one side of the base 11 through a bearing along the length direction of the base 11, the parallel guide rail 123 is arranged on the top of the base 11, the parallel guide rail 123 is parallel to the transmission screw 122, a sliding seat 126 in sliding fit with the parallel guide rail 123 and a screw nut matched with the transmission screw 122 are fixedly arranged at the bottom of the feeding table 124 through bolts, and stable displacement of the sliding seat 126 in the length direction of the base 11 is realized through the matching of the sliding seat 126 and the parallel guide rail 123. The screw nut and the transmission screw are matched to ensure the stable driving of the servo motor 121 to the feeding table 124. The servo motor 121 is installed at one end of the base 11, and the servo motor 121 drives the transmission screw 122 through a gear reduction box. The servo motor 121 drives the transmission screw 122 to realize stable driving of the feeding table 124, so that the feeding table 124 can be positioned at any position on the parallel guide rails 123 to realize fixed-length cutting of the pipe. The clamping mechanism 125 is mounted on top of the feeding table 124, and the clamping mechanism 125 is used for clamping the pipe. Specifically, the clamping mechanism 125 comprises a clamping frame 127 fixed on the feeding table 124 through bolts, a clamping cylinder 128 is fixedly installed at the bottom of the clamping frame 127 through bolts, a clamping disc 129 is installed on a piston rod of the clamping cylinder 128, an upper arc groove matched with the outline of the outer wall of the pipe is formed in the bottom of the clamping disc 129, a fixed disc 130 matched with the clamping disc 129 is installed on the top surface of the feeding table 124, a lower arc groove matched with the outline of the outer wall of the pipe is formed in the top surface of the matched disc, and the pipe is clamped between the clamping disc 129 and the fixed disc 130. When the clamping disk 129 is driven by the clamping cylinder 128 to be in butt joint with the fixed disk 130, the pipe is just clamped.

The cutting die 13 is mounted at the front end of the base 11 through bolts, the middle part of the cutting die 13 is a cavity allowing a pipe to pass through, and the diameter of the cavity is consistent with that of the outer wall of the pipe and can be used as a front end support for pipe cutting. The clamping mechanism 125 on the feeding table 124 of the device is used as a clamping part at the rear end of the pipe, the cutting die 13 is used as the front end support of the pipe, and a thrust can be applied to the tail end of the clamped pipe through the feeding table 124, so that the pipe is pushed to step, and the cutting operation of the pipe is completed under the support of the cutting die 13.

The cutting tool apron 14 is installed on one side of the cutting die 13, the cutting tool apron 14 comprises a tool rest 141, a telescopic oil cylinder 142, a motor frame 143 and a rotating motor 144, the tool rest 141 is welded or fixed on the base 11 through bolts, the bottom of the telescopic oil cylinder 142 is fixedly connected with the tool rest 141 through bolts, the motor frame 143 is fixed on a piston rod of the telescopic oil cylinder 142 through bolts, the rotating motor 144 is fixed on the motor frame 143 through bolts, a saw blade 145 driven by the rotating motor 144 is further installed on the motor frame 143, and the saw blade 145 is perpendicular to the axis of the pipe; specifically, the saw blade 145 may be directly mounted on a motor shaft of the rotating motor 144, or may be separately mounted on a rotating shaft and driven by a transmission device.

The calibrating machine 2 comprises a calibrating shaft 21, an orthopedic support 22, a calibrating oil cylinder 23 and a calibrating die 24; the calibrating shaft 21 comprises a bearing section 211, a reducing section 212 and a calibrating section 213, the bearing section 211 is coaxial with the cutting die 13, the calibrating section 213 is perpendicular to the horizontal plane, the reducing section 212 is connected between the bearing section 211 and the calibrating section 213 as an arc-shaped rod, the diameter of the bearing section 211 is smaller than that of the calibrating section 213, and the diameter of the calibrating section 213 is consistent with the inner diameter of the pipe. When the saw blade cuts the pipe, the front end of the pipe is sleeved on the bearing section 211, after the saw blade cuts the pipe, the cut workpiece is sleeved on the bearing section 211, and the subsequent pipe is driven by the feeding table 124 to extend forwards to push the previous workpiece forwards, so that the previous workpiece slides onto the sizing section 213 after passing through the reducing section 213. If the workpiece is clamped at the top of the sizing section 213, the deformation of the two ends of the workpiece is proved to be serious, and the sizing cylinder is manually started to perform sizing operation on the workpiece through the sizing die. After a plurality of times of cutting, the workpieces are arranged in order on the calibration section 213, and at this time, the cutting machine 1 is stopped and the workpieces are removed from the calibration shaft 21. Further, to facilitate the removal of the workpiece, the calibration shaft 21 may rotate under the action of an external force. The calibration shaft can be manually rotated to one side so as not to face the cutting die 13, and all workpieces can be conveniently taken down at one time. Wherein a support plate 214 can be slidably mounted at the bottom of the calibration section 213, and the diameter of the support plate 214 is larger than that of the pipe. The workpiece supported above can be directly removed at one time by the support plate 214.

Specifically, the orthopedic supports 22 are mounted on the left and right sides of the sizing shaft 21, and the orthopedic supports 22 and the sizing shaft 21 are mounted on the same mounting seat which is at a constant distance from the base 11. The two calibration oil cylinders 23 are respectively arranged on the orthopedic supports 22 at two sides of the calibration shaft 21, the calibration mold 24 is provided with a calibration cavity adapted to the profile of the pipe, the calibration mold 24 is arranged on a piston rod of the calibration oil cylinder 23, namely the two calibration molds 24 are oppositely arranged, and the channels of the two calibration cavities are consistent with the outer diameter of the pipe. When the two calibration oil cylinders 23 are in the extending state, the two calibration dies 24 are butted to cover the calibration section 213, and the cut workpiece is located between the calibration dies 24 and the calibration section 213, so that the calibration dies 24 and the calibration section 213 are matched to calibrate the workpiece.

The clamping oil cylinder, the servo motor 121, the telescopic oil cylinder 142, the rotating motor 144 and the calibration oil cylinder 23 are in signal connection with the controller 3, wherein the clamping oil cylinder, the servo motor, the telescopic oil cylinder, the rotating motor and the calibration oil cylinder can be controlled by external switches on the controller, the rotation of the servo motor 121 and the feeding of the telescopic oil cylinder 142 can be automatically controlled by programs, the automatic cutting of the pipe is realized, and the control switches are only responsible for interrupting the programs and starting the programs.

The cutting die 13, the sizing shaft 21 and the sizing die 24 of the device are all required to be selected according to the diameter of the pipe.

Claims

1. The utility model provides a tubular product electrical automation cutting equipment, includes cutter (1), school type machine (2) and controller (3), its characterized in that: the cutting machine (1) comprises a base (11), a feeding mechanism (12), a cutting die (13) and a cutting tool apron (14);

the feeding mechanism (12) comprises a servo motor (121), a transmission screw rod (122), a parallel guide rail (123), a feeding table (124) and a clamping mechanism (125), the transmission screw rod (122) is rotatably arranged on one side of the base (11) along the length direction of the base (11), the parallel guide rail (123) is arranged at the top of the base (11), the parallel guide rail (123) is parallel to the transmission screw rod (122), the bottom of the feeding table (124) is provided with a sliding seat (126) in sliding fit with the parallel guide rail (123) and a screw rod nut matched with the transmission screw rod (122), the servo motor (121) is arranged at one end of the base (11), the servo motor (121) is used for driving the transmission screw rod (122), the clamping mechanism (125) is arranged at the top of the feeding table (124), and the clamping mechanism (125) is used for clamping a pipe;

the cutting die (13) is arranged at the front end of the base (11), and the middle part of the cutting die (13) is a cavity allowing a pipe to pass through;

the cutting tool apron (14) is arranged on one side of the cutting die (13), the cutting tool apron (14) comprises a tool rest (141), a telescopic oil cylinder (142), a motor frame (143) and a rotating motor (144), the tool rest (141) is arranged on the base (11), the bottom of the telescopic oil cylinder (142) is connected with the tool rest (141), the motor frame (143) is fixedly connected to a piston rod of the telescopic oil cylinder (142), the rotating motor (144) is arranged on the motor frame (143), a saw blade (145) driven by the rotating motor (144) is further arranged on the motor frame (143), and the saw blade (145) is perpendicular to the axis of the pipe;

the calibrating machine (2) comprises a calibrating shaft (21), an orthopedic support (22), a calibrating oil cylinder (23) and a calibrating die (24);

the calibrating shaft (21) comprises a bearing section (211), a reducing section (212) and a calibrating section (213), the bearing section (211) is coaxial with the cutting die (13), the calibrating section (213) is perpendicular to the horizontal plane, the reducing section (212) is connected between the bearing section (211) and the calibrating section (213), the diameter of the bearing section (211) is smaller than that of the calibrating section (213), and the diameter of the calibrating section (213) is consistent with the inner diameter of the pipe;

the correcting device is characterized in that the orthopedic supports (22) are arranged on the left side and the right side of the correcting shaft (21), two correcting oil cylinders (23) are arranged, the two correcting oil cylinders (23) are respectively arranged on the orthopedic supports (22) on the two sides of the correcting shaft (21), a correcting cavity matched with the contour of a pipe is arranged on the correcting mold (24), the correcting mold (24) is arranged on a piston rod of the correcting oil cylinder (23), when the two correcting oil cylinders (23) are in an extending state, the two correcting molds (24) are in butt joint, and the channels of the two correcting cavities are consistent with the outer diameter of the pipe;

the servo motor (121), the telescopic oil cylinder (142), the rotating motor (144) and the sizing oil cylinder (23) are in signal connection with the controller (3).

2. An electrical automatic pipe cutting apparatus according to claim 1, wherein: the clamping mechanism (125) comprises a clamping frame (127) arranged on the feeding table (124), a clamping oil cylinder (128) is arranged at the bottom of the clamping frame (127), a clamping disc (129) is arranged on a piston rod of the clamping oil cylinder (128), a fixed disc (130) matched with the clamping disc (129) is arranged on the top surface of the feeding table (124), and the pipe is clamped between the clamping disc (129) and the fixed disc (130).

3. An electrical automatic pipe cutting apparatus according to claim 1, wherein: the bottom of the sizing section (213) is provided with a supporting plate (214) in a sliding mode, and the diameter of the supporting plate (214) is larger than that of the pipe.

4. An electrical automatic pipe cutting apparatus according to claim 1, wherein: the cutting die (13), the sizing shaft (21) and the sizing die (24) are all required to be selected according to the diameter of the pipe.

5. An electrical automatic pipe cutting apparatus according to claim 1, wherein: the calibration shaft (21) can rotate under the action of external force.