Method of producing an industrial robot arm
First Claim
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1. A method of producing an industrial robot arm, comprising the steps of:
- producing an arm body and rotatably supporting members such as a rotary shaft and a bearing separately of each other;
mounting the arm body and rotatably supporting members on an assembling jig in a predetermined positional arrangement;
filling a bonding agent into spaces formed between said arm body and said rotatably supporting members;
forming through-holes in said arm body and said rotatably supporting members in a state of being secured to said assembling jig, after the solidification of said bonding agent; and
solidly securing said arm body to said rotatably supporting members through said through-holes by means of fastening means.
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Abstract
To mount rotatably supporting members such as a rotary shaft to an arm body of an industrial robot arm, the former and the latter are solidly secured to each other by fastening members such as rivets after a bonding agent is applied to spaces formed between the arm body and the rotatably supporting members, whereby necessity for the stage of assembling work by the welding is eliminated, shearing forces are supported by the bonding agent and tensile forces are supported by the fastening members, so that the robot arm being high in precision and mechanical strength can be obtained.
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Citations
10 Claims
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1. A method of producing an industrial robot arm, comprising the steps of:
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producing an arm body and rotatably supporting members such as a rotary shaft and a bearing separately of each other; mounting the arm body and rotatably supporting members on an assembling jig in a predetermined positional arrangement; filling a bonding agent into spaces formed between said arm body and said rotatably supporting members; forming through-holes in said arm body and said rotatably supporting members in a state of being secured to said assembling jig, after the solidification of said bonding agent; and solidly securing said arm body to said rotatably supporting members through said through-holes by means of fastening means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification