Robot for straightening double thin-wall section pipe with undesirably shaped cavities

Patent metadata

Field	Value
Publication number	US-11465188-B2
Application number	US-202016903006-A
Country	US
Kind code	B2
Filing date	Jun 16, 2020
Priority date	Jun 27, 2019
Publication date	Oct 11, 2022
Grant date	Oct 11, 2022

Abstract

A robot for straightening double thin-wall section pipe with undesirably shaped cavities, includes two racks, a positioning component, a shaping component and a driving component. In operation, the double thin-wall section pipe is put in the positioning component, and the shaping component is used for shaping the pipe by the driving of the driving component. The robot improves the working efficiency, and is not only compact in structure design, stable in movement, precise in positioning and reliable in locking, but also convenient for disassembly and maintenance.

First claim

What is claimed is:

1. A robot for straightening double thin-wall section pipe with undesirably shaped cavities, comprising:
two racks;
a beam and a horizontal shaft in parallel being set from top to bottom between the racks;
a positioning component, being set on the outside of the horizontal shaft and having a double-layer shell shaping area with an arched longitudinal section and configured to receive the double thin-wall section pipe; and the beam being outside of the double-layer shell shaping area;
a shaping component, having a first telescopic part, a first tray, a second telescopic part and a second tray; the fixed end of the first telescopic part being movably connected on the beam, and the telescopic end being connected to the first tray; the fixed end of the second telescopic part being movably connected on the horizontal shaft, and the telescopic end being connected to the second tray; the first tray being able to suck or press on the outer wall of the double thin-wall section pipe, and the second tray being able to suck or press on the inner wall of the double thin-wall section pipe; and
a driving component, for driving the first telescopic part to move in the axial direction of the beam, the second telescopic part to move in the axial direction of the horizontal shaft and the positioning component to rotate in the axial direction of the horizontal shaft.

2. The robot according to claim 1 , wherein the positioning component comprises two fixed frames in parallel and a plurality of fixed rods; the fixed frames and the fixed rods are connected to form the double-layer shell shaping area.

3. The robot according to claim 2 , wherein the central parts of the fixed frames are set on the outside of the both ends of the horizontal shaft.

4. The robot according to claim 2 , wherein the both ends of the fixed rods are respectively inserted in the fixed frames.

5. The robot according to claim 2 , wherein the positioning component further comprises two bearing housings; the two bearing housings are set at the both ends of the horizontal shaft, the central parts of the fixed frames are respectively set on the outside of the bearing housings.

6. The robot according to claim 5 , wherein at least one extension is formed in the outer edge of one of the bearing housings, and a plurality of teeth are set on the inner wall of the extension.

7. The robot according to claim 6 , wherein the driving component comprises a first motor and a gear meshed with the teeth; the first motor is mounted on one of the fixed frames, and the gear is mounted on the output shaft of the first motor.

8. The robot according to claim 5 , wherein each of the bearing housings has a bearing inside, the inner wall of the bearing is connected to the outer wall of the horizontal shaft.

9. The robot according to claim 2 , wherein the both ends of each of the fixed rods run respectively through the fixed frames, and each end of each of the fixed rods is fixed by at least one nut.

10. The robot according to claim 1 , wherein the driving component comprises a first frame body and a first driving structure; the first frame body has a first ferrule, and the first ferrule is on the beam; the top end of the first telescopic part is connected to the first frame body; the first driving structure is mounted on the first frame body, and used for driving the first ferrule to move in the axial direction of the beam.

11. The robot according to claim 10 , wherein the first telescopic part comprises a first hydraulic cylinder; the first hydraulic cylinder is connected to the first frame body, and the piston rod of the first hydraulic cylinder is connected the first tray.

12. The robot according to claim 1 , wherein the driving component further comprises a second frame body and a second driving structure; the second frame body has a second ferrule, and the second ferrule is on the horizontal shaft; the bottom end of the second telescopic part is connected to the second frame body; the second driving structure is mounted on the second frame body, and used for driving the second ferrule to move in the axial direction of the horizontal shaft.

13. The robot according to claim 12 , wherein the second telescopic part comprises a second hydraulic cylinder; the second hydraulic cylinder is connected to the second frame body, and the piston rod of the second hydraulic cylinder is connected the second tray.

14. The robot according to claim 12 , wherein the horizontal shaft is connected to the second frame body by a sliding key.

15. The robot according to claim 1 , wherein a shape correcting member is set in the first tray or the second tray, and the shape correcting member is used for shaping the double thin-wall section pipe.

16. The robot according to claim 15 , wherein the shape correcting member is a suction cup or a platen, and the suction cup communicated with the external suction generating device through a pipe.

17. The robot according to claim 1 , wherein each of the racks comprises a plurality of guide posts; the guide posts of one of the racks are respectively inserted in the one end of the beam, the guide posts of the other of the racks are respectively inserted in the other end of the beam.

18. The robot according to claim 17 , wherein the driving component is used for driving the beam to move in the axial direction of the guide posts.

19. The robot according to claim 18 , wherein the driving component comprises a plurality of third hydraulic cylinders; the piston rod of each of the third hydraulic cylinders is connected to each of the guide posts, and the third hydraulic cylinders are mounted on the both ends of the beam.

20. The robot according to claim 1 , wherein the both ends of the horizontal shaft are threaded and connected to the racks.

Assignees

• Univ Hefei Technology

Inventors

• Zhai Hua
• Wu Yucheng
• Song Huaihao
• Lei Rui
• Wang Shenglong
• Shi Wenchao

Classifications

• B21D3/10

  between rams and anvils or abutments · CPC title

• B21D3/16 Primary

  of specific articles made from metal rods, tubes, or profiles, e.g. crankshafts, by specially adapted methods or means · CPC title

• B21D3/00

  Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts (straightening of well casings in situ E21B; {straightening rails or rail joints E01B31/08}) · CPC title

• B21D1/08

  of hollow bodies made from sheet metal (of substantially open bodies B21D1/10 {; flattening hollow objects for transport and reforming B21D51/14}) · CPC title