阅读说明：本技术 空心管扭管机 (Hollow pipe twisting machine ) 是由 刘联明 张念竹 郭刚 于 2020-06-02 设计创作，主要内容包括：本发明公开了一种空心管扭管机,包括主体机架,所述主体机架上内固定安装液压系统,所述主体机架的上表面固定安装伺服电机一和涡轮减速箱,所述伺服电机一的输出轴与涡轮减速箱的输入轴固定连接,所述涡轮减速箱的输出轴承内固定连接旋转头,所述旋转头为圆管形并连通涡轮减速箱的左右表面,所述旋转头右端端口内设有夹具。本发明的有益效果是,工作效率高,扭管效果好。(The invention discloses a hollow pipe twisting machine which comprises a main body frame, wherein a hydraulic system is fixedly installed in the main body frame, a servo motor I and a turbine reduction gearbox are fixedly installed on the upper surface of the main body frame, an output shaft of the servo motor I is fixedly connected with an input shaft of the turbine reduction gearbox, a rotating head is fixedly connected in an output bearing of the turbine reduction gearbox, the rotating head is in a circular pipe shape and communicated with the left surface and the right surface of the turbine reduction gearbox, and a clamp is arranged in a port at the right end of the rotating head. The invention has the advantages of high working efficiency and good pipe twisting effect.)

1. A hollow pipe twisting machine comprises a main body frame (1), a hydraulic system (2) is fixedly arranged in the main body frame, and is characterized in that,

a servo motor I (3) and a turbine reduction gearbox (4) are fixedly mounted on the upper surface of the main body frame, an output shaft of the servo motor I is fixedly connected with an input shaft of the turbine reduction gearbox, a rotating head (5) is fixedly connected in an output bearing of the turbine reduction gearbox, the rotating head is in a circular tube shape and is communicated with the left surface and the right surface of the turbine reduction gearbox, and a clamp (6) is arranged in a port at the right end of the rotating head;

the upper surface of a main body frame on the left side of the turbine reduction gearbox is fixedly provided with two linear guide rails I (7), the two linear guide rails I are parallel to each other, the two linear guide rails I are provided with four guide rail seats I (8), the four guide rail seats I slide along the linear guide rails I, the four guide rail seats I are fixedly provided with supporting rods (9), the supporting rods are parallel to the linear guide rails I, the central lines of the supporting rods and a rotating head are positioned on a straight line, a ball screw rod I (10) is arranged between the two linear guide rails I, a nut seat on the ball screw rod I is fixedly connected with the lower surfaces of the four guide rail seats I, a servo motor II (11) and a reducer I (12) are fixedly arranged in the main body frame, the output shaft of the servo motor II is fixedly connected with the input shaft of the reducer I, and one end of the ball screw rod I are fixedly provided with a synchronous, the two synchronous belt wheels I are connected through a synchronous belt;

two linear guide rails II (14) are fixedly installed on the upper surface of a main body frame on the right side of the turbine reduction gearbox, the two linear guide rails II are parallel to each other, four guide rail seats II (15) are installed on the two linear guide rails, the four guide rail seats II slide along the linear guide rails II, a clamping head fixing seat (16) is fixedly installed on the four guide rail seats II, two clamping oil cylinders (17) are fixedly installed on the clamping head fixing seat, clamping fixtures (18) are fixedly installed on telescopic rods of the clamping oil cylinders and are opposite to each other, a ball screw rod II (19) is installed between the two linear guide rails II, a nut seat on the ball screw rod II is fixedly connected with the lower surfaces of the four guide rail seats II, a servo motor III (20) and a reducer II (21) are fixedly installed in the main body frame, and an output shaft of the servo motor III is fixedly connected with an input, a second synchronous belt wheel (22) is fixedly mounted at an output shaft of the second speed reducer and one end of the second ball screw, and the two second synchronous belt wheels are connected through a synchronous belt;

the hydraulic system is respectively connected with the two hydraulic cylinders through pipelines, and the hydraulic system provides oil pressure for the two clamping oil cylinders.

2. The tube twisting machine according to claim 1, wherein a photoelectric switch is fixedly mounted on the side surface of the turbine reduction box, and the photoelectric switch senses and records the number of revolutions of the rotating head.

3. The machine for twisting hollow pipes according to claim 1, wherein photoelectric switches are installed at two ends of the first linear guide rail, and photoelectric switches are installed at two ends of the second linear guide rail.

4. The tube twisting machine for the hollow tubes as claimed in claim 3, wherein the photoelectric switch on the first linear guide rail is used for limiting the first four-piece guide rail seat, and the photoelectric switch on the second linear guide rail is used for limiting the second four-piece guide rail seat.

5. The hollow pipe twisting machine according to claim 1, wherein the hydraulic system comprises an oil tank, an oil pump and a control valve, the oil tank is connected with the control valve through the oil pump, and the control valve is respectively connected with the two oil cylinders through pipelines.

6. The hollow pipe twisting machine according to claim 1, wherein the clamping fixture is in a sheet structure with a longitudinal section being "<" shape, the clamping fixture is fixedly connected with a telescopic rod of an oil cylinder through a dovetail groove (23), the fixture comprises two parts, namely a round sleeve (24) fixedly installed in the rotating head and a locking bolt (25) installed on the round sleeve, a threaded hole (26) is formed in the side surface of the round sleeve, the locking bolt penetrates through the threaded hole and extends into the round sleeve, a handle (27) is fixedly connected to the upper end of the locking bolt, a pressing sheet (28) is fixedly connected to the lower end of the locking bolt, a rubber sheet (29) is installed on the lower surface of the pressing sheet, and the locking bolt is in threaded connection with the threaded hole.

7. The machine for twisting hollow pipes according to claim 1, wherein one end of the support rod is fixedly connected to the support frame, and the other end of the support rod extends into the inner cavity of the rotating head.

8. The tube twisting machine according to claim 1, wherein the first ball screw is located between the first two linear guides, and the second ball screw is located between the second two linear guides.

9. The hollow tube twisting machine according to claim 1, wherein the first ball screw and the second ball screw are fixedly connected with the upper surface of the main frame through bearings at two ends of the first ball screw and the second ball screw.

10. The hollow tube twisting machine according to claim 1, wherein the photoelectric switch is connected with a signal input of a PLC controller through a data acquisition instrument, a signal output of the PLC controller is respectively connected with a controller input of a first servo motor, a controller input of a second servo motor, a controller input of a third servo motor and a control part input of an oil pump, and a signal output of the PLC controller is connected with a control valve through a relay.

Technical Field

The invention relates to the field of hollow tube twisting equipment, in particular to a hollow tube twisting machine.

Background

The principle of the existing pipe twisting machine is that through the mutual matching of an electric appliance and a hydraulic system, an electric appliance system controls a motor and an oil way, a screw nut or an oil cylinder pushes a component to do linear motion, and a signal detected by a limit switch in motion is used as a basis to control and change the rotation direction of the motor and the direction of the oil way so as to achieve the expected sequential action

However, when the hollow pipe fitting is twisted, materials such as iron sand and the like need to be filled into the inner cavity of the pipe fitting as a support when the hollow pipe fitting is twisted due to the problem of strength of the pipe fitting, the mode is low in efficiency, labor-consuming and time-consuming, and the requirement for high-efficiency production of the industry cannot be met

Disclosure of Invention

The invention aims to solve the problems and designs a hollow pipe twisting machine.

The technical scheme of the invention is that the hollow pipe twisting machine comprises a main body frame, a hydraulic system is fixedly arranged in the main body frame,

the upper surface of the main body frame is fixedly provided with a servo motor I and a turbine reduction gearbox, an output shaft of the servo motor I is fixedly connected with an input shaft of the turbine reduction gearbox, an output bearing of the turbine reduction gearbox is internally and fixedly connected with a rotating head, the rotating head is in a round pipe shape and is communicated with the left surface and the right surface of the turbine reduction gearbox, and a clamp is arranged in a port at the right end of the rotating head;

two linear guide rails I are fixedly arranged on the upper surface of the main body frame on the left side of the turbine reduction gearbox, the two linear guide rails I are parallel to each other, four guide rail seats I are arranged on the two linear guide rails, the first four guide rail seats slide along the first linear guide rail, the first four guide rail seats are fixedly provided with supporting rods, the support rod is parallel to the linear guide rails I, the center lines of the support rod and the rotating head are positioned on the same straight line, a ball screw I is arranged between the two linear guide rails I, a nut seat on the first ball screw is fixedly connected with the lower surface of the first four guide rail seats, a second servo motor and a first speed reducer are fixedly arranged in the main body frame, an output shaft of the servo motor II is fixedly connected with an input shaft of the speed reducer I, a first synchronous belt wheel is fixedly installed at the output shaft of the speed reducer I and one end of the ball screw I, and the two first synchronous belt wheels are connected through a synchronous belt;

the upper surface of a main body frame on the right side of the turbine reduction gearbox is fixedly provided with two linear guide rails, the two linear guide rails are parallel to each other, the two linear guide rails are provided with four guide rail seats, the two guide rail seats slide along the two linear guide rails, the two guide rail seats are fixedly provided with clamping head fixing seats, the clamping head fixing seats are fixedly provided with two clamping oil cylinders, telescopic rods of the clamping oil cylinders are fixedly provided with clamping fixtures, the two clamping fixtures are opposite, a ball screw rod II is arranged between the two linear guide rails, a nut seat on the ball screw rod II is fixedly connected with the lower surface of the two guide rail seats, a servo motor III and a reducer II are fixedly arranged in the main body frame, an output shaft of the servo motor III is fixedly connected with an input shaft of the reducer II, and one ends of the output shaft of the reducer II and the ball screw rod II are fixedly provided with a synchronous belt pulley II, the two second synchronous belt wheels are connected through a synchronous belt;

the hydraulic system is respectively connected with the two hydraulic cylinders through pipelines, and the hydraulic system provides oil pressure for the two clamping oil cylinders.

And a photoelectric switch is fixedly arranged on the measuring surface of the turbine reduction gearbox, and the photoelectric switch senses and records the revolution of the rotating head.

Photoelectric switches are installed at two ends of the first linear guide rail, and photoelectric switches are installed at two ends of the second linear guide rail.

The photoelectric switch on the first linear guide rail is used for limiting the first four guide rail seats, and the photoelectric switch on the second linear guide rail is used for limiting the second four guide rail seats.

The hydraulic system comprises an oil tank, an oil pump and a control valve, wherein the oil tank is connected with the control valve through the oil pump, and the control valve is respectively connected with the two oil cylinders through pipelines.

The shape of clamping jig is that the longitudinal section is "<" shape lamellar structure, clamping jig passes through the telescopic link fixed connection of dovetail and hydro-cylinder, anchor clamps include the circle cover of fixed mounting in the rotating head and install the locking bolt two parts on the circle cover, be equipped with the screw hole on the side surface of circle cover, locking bolt passes the screw hole and stretches into in the circle cover, locking bolt upper end fixed connection handle, locking bolt lower extreme fixed connection preforming, install the sheet rubber on the preforming lower surface, locking bolt and screw hole threaded connection

One end of the supporting rod is fixedly connected with the supporting frame, and the other end of the supporting rod extends into the inner cavity of the rotating head.

The ball screw rod I is located between the two linear guide rails I, and the ball screw rod II is located between the two linear guide rails II.

And the first ball screw and the second ball screw are fixedly connected with the upper surface of the main body frame through bearings at two ends of the first ball screw and the second ball screw.

The photoelectric switch is connected with the signal input of the PLC controller through the data acquisition instrument, the signal output of the PLC controller is respectively connected with the controller input of the first servo motor, the controller input of the second servo motor, the controller input of the third servo motor and the control part input of the oil pump, and the signal output of the PLC controller is connected with the control valve through the relay.

Advantageous effects

The hollow pipe twisting machine manufactured by the technical scheme of the invention can realize automatic processing of the twisted pipe by controlling the actions of the three servo motors through the PLC, and greatly improves the processing efficiency and quality compared with the existing processes of filling steel grit, twisting the end socket again, then detaching the end socket and emptying the steel grit, and has high efficiency and good effect.

Drawings

FIG. 1 is a schematic structural diagram of a hollow pipe twisting machine according to the present invention (the part of a rotary head inserted into a turbine reduction gearbox is not shown);

FIG. 2 is a schematic structural diagram of the tube twisting machine of the present invention (the support rod is not shown);

FIG. 3 is a schematic structural view of the clamping fixture of the present invention mounted on a clamping cylinder;

FIG. 4 is a schematic view of the construction of the clamp of the present invention;

in the figure, 1, a main body frame; 2. a hydraulic system; 3. a first servo motor; 4. a turbine reduction gearbox; 5. rotating the head; 6. a clamp; 7. a first linear guide rail; 8. a first four guide rail seats; 9. a support bar; 10. a first ball screw; 11. a servo motor II; 12. a first speed reducer; 13. a synchronous belt wheel I; 14. a second linear guide rail; 15. a second four-piece guide rail seat; 16. a clamping head fixing seat; 17. clamping the oil cylinder; 18. clamping the clamp; 19. a ball screw II; 20. a servo motor III; 21. a second speed reducer; 22. and a second synchronous pulley.

Detailed Description

The invention will be described in detail with reference to the accompanying drawings, as shown in fig. 1-2, for the convenience of understanding the technical solution, a part of fig. 1, where the rotating head is not inserted into the turbine reduction box, is not shown, and fig. 2, where the supporting rod structure is not shown in order to highlight the ball screw rod i. The device is characterized in that a first servo motor 3 and a turbine reduction gearbox 4 are fixedly mounted on the upper surface of a main body frame, an output shaft of the first servo motor is fixedly connected with an input shaft of the turbine reduction gearbox, a rotating head 5 is fixedly connected in an output bearing of the turbine reduction gearbox, the rotating head is in a round pipe shape and communicated with the left surface and the right surface of the turbine reduction gearbox, and a clamp 6 is arranged in a port at the right end of the rotating head; the hydraulic system is respectively connected with the two hydraulic cylinders through pipelines, and the hydraulic system provides oil pressure for the two clamping oil cylinders.

The invention also provides a method for controlling the speed of the turbine speed reduction box, which comprises the following steps that two linear guide rails I7 are fixedly installed on the upper surface of a main body frame on the left side of the turbine speed reduction box, the two linear guide rails I are parallel to each other, four guide rail seats I8 are installed on the two linear guide rails, the four guide rail seats I slide along the linear guide rails I, a support rod 9 is fixedly installed on the four guide rail seats I, the support rod is parallel to the linear guide rails I, the center lines of the support rod and a rotating head are located on the same straight line, a ball screw rod I10 is installed between the two linear guide rails I, a nut seat on the ball screw rod I is fixedly connected with the lower surface of the four guide rail seats I, a servo motor II 11 and a speed reducer I12 are fixedly installed in the main body frame, the output shaft of the servo motor II is fixedly connected with the input shaft of the speed, and the first two synchronous pulleys are connected through a synchronous belt.

The invention also discloses a turbine speed reducer, which is characterized in that two linear guide rails II 14 are fixedly installed on the upper surface of a main body frame on the right side of a turbine speed reducer, the two linear guide rails II are parallel to each other, four guide rail seats II 15 are installed on the two linear guide rails, the four guide rail seats II slide along the two linear guide rails, a clamping head fixing seat 16 is fixedly installed on the four guide rail seats II, two clamping oil cylinders 17 are fixedly installed on the clamping head fixing seat, a clamping clamp 18 is fixedly installed on an expansion rod of each clamping oil cylinder, the two clamping clamps are opposite, a ball screw rod II 19 is installed between the two linear guide rails II, a nut seat on the ball screw rod II is fixedly connected with the lower surface of the four guide rail seats II, a servo motor III 20 and a speed reducer II 21 are fixedly installed in the main body frame, an output shaft of the servo motor III is fixedly connected with an input shaft of the speed reducer II, and one end of the ball screw rod II, and the two second synchronous pulleys are connected through a synchronous belt.

The creation point of the application still lies in, the survey of turbine reducing gear box is fixed mounting photoelectric switch on the surface, photoelectric switch responds to and takes notes the revolution of rotating head, linear guide one's both ends installation photoelectric switch, linear guide two's both ends installation photoelectric switch, linear guide one last photoelectric switch is used for four guide rail seat one spacing, linear guide two last photoelectric switch is used for four guide rail seat two spacing, affiliated hydraulic system includes oil tank, oil pump and control valve, the oil tank passes through the oil pump and is connected with the control valve, the control valve passes through the pipeline and is connected with two hydro-cylinders respectively, the shape of clamping jig is that the longitudinal section is "<" shape lamellar structure, clamping jig passes through dovetail 23 and hydro-cylinder's telescopic link fixed connection, the anchor clamps include the circle cover 24 of fixed mounting in the rotating head and install the locking bolt 25 two parts on the circle cover, a threaded hole 26 is formed in the side surface of the round sleeve, the locking bolt penetrates through the threaded hole and extends into the round sleeve, a handle 27 is fixedly connected to the upper end of the locking bolt, a pressing sheet 28 is fixedly connected to the lower end of the locking bolt, a rubber sheet 29 is mounted on the lower surface of the pressing sheet, and the locking bolt is in threaded connection with the threaded hole; the clamp in the application can also adopt the structural design that the clamping oil cylinder is provided with the clamping clamp, the clamping oil cylinder is fixedly arranged on the rotating head, then the clamping clamp is fixedly arranged on the telescopic end of the clamping oil cylinder through a dovetail groove, and the structural design can refer to the clamping head fixing seat; bracing piece one end and support frame fixed connection, the inner chamber of rotating head is stretched into to the bracing piece other end, ball screw one is located two linear guide one's centre, ball screw two is located two linear guide two's centre, ball screw one and ball screw two all are connected with the last fixed surface of main part frame through the bearing at its both ends, photoelectric switch passes through the signal input connection of data acquisition instrument and PLC controller, the signal output of PLC controller respectively with the controller input of servo motor one, the controller input of servo motor two, the controller input of servo motor three and the control part input connection of oil pump, the signal output of PLC controller passes through the relay and is connected with the control valve.

The electronic device adopted by the technical scheme comprises:

a servo motor I and a matched controller thereof;

a servo motor II and a matched controller thereof;

a servo motor III and a matched controller thereof;

the control valve is a conventional control valve used for a hydraulic system;

an oil pump and a matched control part thereof;

in the implementation process of the technical scheme, a person in the art needs to connect all the electrical components in the present application with a power supply adapted to the electrical components through a wire, and should select an appropriate controller according to actual conditions to meet control requirements, and specific connection and control sequence.

In the technical scheme, the support frame is fixed on a first four-piece guide rail seat through bolts, and the first four-piece guide rail seat is connected with a nut seat of a first ball screw through bolts. Two ends of the first ball screw are fixed by two bearings, a synchronous belt pulley is fixedly installed at one end of the first ball screw, the second servo motor drives the screw to rotate through the synchronous belt, and the first nut seat drives the four guide rail seats and the support frame to do linear motion on the guide rails. The supporting frame is provided with a supporting rod for supporting the torsion tube, and the supporting rod is mainly used for extending into the inner hole of the hollow tube to perform a supporting function.

The first servo motor and the turbine reduction gearbox are fixed on the main body rack through bolts, the rotating head is installed at the output shaft hole of the speed reducer and is of a circular tube-shaped structure, a clamp is machined in the end port of one end of the rotating head, the clamp is mainly used for clamping the hollow tube, the rotating center of the hollow tube and the center of the supporting rod are located on the same straight line, and one end of the hollow tube is inserted into the inner cavity of the rotating head and clamped through the clamp during machining. The photoelectric switch is arranged beside the output shaft hole of the turbine reduction gearbox and used for detecting the number of rotations and the position

The clamping head fixing seat is fixed on a second four-piece guide rail seat through a bolt and is fixedly connected with a nut seat of a second ball screw through a bolt; two ends of a ball screw II are fixed by two bearings, a synchronous belt pulley II is fixedly installed at one end of the ball screw II, a clamping oil cylinder drives a clamp to clamp, the clamping oil cylinder is fixed on a clamping head fixing seat by bolts, the stretching directions of the clamping oil cylinder are opposite, a hydraulic system comprises an oil tank, an oil pump and a control valve and is fixed on a flat plate in a main body frame by bolts, and a photoelectric switch is fixed beside a guide rail by bolts and can be used for moving and limiting four guide rail seats.

A second synchronous belt wheel is driven through a third servo motor and a second speed reducer, so that a synchronous belt is driven to transmit motion to a second ball screw to drive the clamping head to do linear motion; the clamping of the workpiece is realized by driving the clamp to clamp and loosen the workpiece through the oil cylinder of the oil pump control valve, and the photoelectric switch controls the limit position of the linear motion of the clamping head.

This device passes through PLC controller control, make it reach the hollow tube and place anchor clamps department location back in the rotating head, the one end of bracing piece stretches into the hollow tube downthehole according to setting for the position, then press from both sides tight anchor clamps and press from both sides tight hollow tube, servo motor drives the rotating head through the turbine reducing gear box and rotates, and then it is rotatory according to setting for number of turns and direction to drive the hollow tube, realize the pipe twisting action, anchor clamps in the rotating head are opened after the pipe twisting is accomplished, press from both sides tight head fixing base and drive the pipe and do the linear motion who keeps away from the rotating head according to. After the twisting is finished, the support frame is driven by the servo motor II, the speed reducer I and the synchronous belt to be away from the rotating head, the support rod is pulled out of the inner hole of the hollow pipe, then the clamping fixture loosens the workpiece, and the process cycle is finished.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.