US 8,794,098 B2Granted

Parallel robot

AssigneesHONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., Hon Hai Precision Industry Co., Ltd.

InventorBo Long

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Abstract

A parallel robot includes a fixed platform, a movable platform, and a plurality of links positioned in parallel between the fixed platform and the movable platform. Each link includes a first connecting member, a second connecting member, a first ball joint, and a second ball joint. The first connecting member connects to the second connecting member with a prismatic joint. The first connecting member connects to the fixed platform via the first ball joint, and the second connecting member connects to the movable platform via the second ball joint. Each of the first and second ball joints includes a ball member, a socket member, and a resilient pressing mechanism. The ball member couples with the socket member. The resilient pressing mechanism is positioned between the ball member and the socket member, applying compression to cause the ball member to tightly contact the socket member.

Claims9

Dependent claims

A parallel robot, comprising:

a fixed platform;
a moveable platform;
and
a plurality of links positioned in parallel between the fixed platform and the moveable platform, wherein each of the links comprises a first connecting member, a second connecting member, a first ball joint, and a second ball joint;
the first connecting member is connected to the second connecting member with a sliding joint, the first connecting member is connected to the fixed platform via the first ball joint, and the second connecting member is connected to the moveable platform via the second ball joint;
each of the first and second ball joints comprises a ball member, a socket member, and a resilient pressing mechanism;
the ball member is coupled with the socket member, and the resilient pressing mechanism is positioned between the ball member and the socket member to apply compression to cause the ball member to tightly contact the socket member;
the resilient pressing mechanism comprises a plurality of springs positioned in parallel between the ball member and the socket member.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/193,850Filed 29 Jul 2011
Priority: CN 2010 1 052142727 Oct 2010
Published: US 2012/0103128 A13 May 2012
Granted: 5 Aug 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

F16C 11/06
Pivotal connections: ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
B25J 9/0057
With kinematics chains having a spherical joint at the base: with kinematics chains of the type spherical-prismatic-spherical
B25J 17/0216
Compliance devices: comprising a stewart mechanism
Y10T 74/20305
Multiple controlling elements for single controlled element: robotic arm