ARM FOR MULTI-JOINT ROBOT, AND MULTI-JOINT ROBOT

• US 20180326574A1
• Filed: 05/09/2018
• Published: 11/15/2018
• Est. Priority Date: 05/10/2017
• Status: Active Grant

• Current Assignee: ABB Schweiz AG (ABB Limited)
• Original Assignee: ABB Schweiz AG (ABB Limited)
• Inventors: Cao, Xiaodong, Zhu, Zhu, Sha, Jiajie
• Granted Patent: US 10,682,755 B2
• Time in Patent Office: Days
• CPC Class Codes: B25J 18/00 Arms
• CPC Class Codes: B25J 9/0009 Constructional details, e.g. manipulator supports, bases
• CPC Class Codes: B25J 9/042 comprising an articulated arm

Abstract

The present disclosure provides an arm for a multi joint robot, and a multi joint robot. The arm is formed by a first half portion and a second half portion engaged with each other, an upper portion of each of the first and second half portions being provided with a protrusion, the protrusions being substantially parallel to each other, a lower portion of the first half portion being provided with a supporting member, the two half portions being engaged with each other via an engagement surface which is between the two protrusions, the shape of a lower portion of the second half portion matching the shape of an outer circumference of the supporting member.

Claims

1. An arm for a multi-joint robot, comprising:

the arm being formed by a first half portion and a second half portion engaged with each other, an upper portion of each of the first and second half portions being provided with a protrusion, the protrusions being substantially parallel to each other, wherein a lower portion of the first half portion is provided with a supporting member, the two half portions being engaged with each other via an engagement surface, the engagement surface being between the two protrusions, a shape of a lower portion of the second half portion matching a shape of an outer circumference of the supporting member.

2. The arm according to claim 1, wherein the engagement surface is a flat surface substantially parallel to a protruding direction of the protrusion and having different distances to the two protrusions.

3. The arm according to claim 1, wherein a volume of a portion of the first half portion excluding the supporting member is larger than a volume of the second half portion.

4. The arm according to claim 1, wherein the first and second half portions are molded by pressure casting.

5. The arm according to claim 1, wherein an upper outer circumference surface of the supporting member is provided with a through-hole.

14. The arm according to claim 2, wherein an upper outer circumference surface of the supporting member is provided with a through-hole.

15. The arm according to claim 3, wherein an upper outer circumference surface of the supporting member is provided with a through-hole.

16. The arm according to claim 4, wherein an upper outer circumference surface of the supporting member is provided with a through-hole.

6. A multi-joint robot, comprising:

an arm formed by a first half portion and a second half portion engaged with each other, an upper portion of each of the first and second half portions including a protrusion, the protrusions being substantially parallel to each other, wherein a lower portion of the first half portion is provided with a supporting member, the two half portions being engaged with each other via an engagement surface, the engagement surface being between the two protrusions, a shape of a lower portion of the second half portion matching a shape of an outer circumference of the supporting member.

7. The robot according to claim 6, wherein the engagement surface is a flat surface substantially parallel to a protruding direction of the protrusion and having different distances to the two protrusions.

8. The robot according to claim 6, wherein a volume of a portion of the first half portion excluding the supporting member is larger than a volume of the second half portion.

9. The robot according to claim 6, wherein the first and second half portions are molded by pressure casting.

10. The robot according to claim 6, wherein an upper outer circumference surface of the supporting member is provided with a through-hole.

11. The robot according to claim 7, wherein an upper outer circumference surface of the supporting member is provided with a through-hole.

12. The robot according to claim 8, wherein an upper outer circumference surface of the supporting member is provided with a through-hole.

13. The robot according to claim 9, wherein an upper outer circumference surface of the supporting member is provided with a through-hole.