Apparatus for molding hairpin

Patent metadata

Field	Value
Publication number	US-11356004-B2
Application number	US-202016994999-A
Country	US
Kind code	B2
Filing date	Aug 17, 2020
Priority date	Jun 25, 2020
Publication date	Jun 7, 2022
Grant date	Jun 7, 2022

Abstract

An apparatus for molding a hairpin inserted into a stator core includes a clamping unit including a connection bracket mounted on a front end of a robot arm and at least one clamper mounted on the connection bracket and configured to be reciprocally driven in opposite directions in a straight line, and a mold unit detachably coupled with the at least one clamper and configured to press mold a head portion of the hairpin by a molding jig configured to be driven by the at least one clamper.

First claim

What is claimed is:

1. An apparatus for molding a hairpin inserted into a stator core, the apparatus comprising:
a clamping unit including a connection bracket mounted on a front end of a robot arm and at least one clamper mounted on the connection bracket and configured to be reciprocally driven in opposite directions in a straight line; and
a mold unit detachably coupled with the at least one clamper and configured to press mold a head portion of the hairpin by a molding jig configured to be driven by the at least one clamper.

2. The apparatus of claim 1 , wherein:
the at least one clamper comprises a pair of clampers, each of which comprises a first end mounted on the connection bracket and a second end on which a fitting end protrudes; and
the pair of clampers is configured to reciprocate to become closer and farther with reference to a central portion of the connection bracket.

3. The apparatus of claim 2 , wherein the fitting end is slidably inserted into a mounting slot formed in the molding jig.

4. The apparatus of claim 2 , wherein the mold unit is detachably coupled with the connection bracket at a position between the pair of clampers by a fixing chuck.

5. The apparatus of claim 4 , wherein the fixing chuck comprises:
a fixing block mounted on the connection bracket; and
a plurality of fixing pins disposed along an exterior circumference of the fixing block, and configured to be inserted into the fixing block and to protrude from the fixing block.

6. The apparatus of claim 4 , wherein the mold unit comprises:
a fixing plate coupled to the connection bracket through the fixing chuck;
a support bar fixed to the fixing plate; and
at least one molding jig coupled with the at least one clamper and configured to be driven by the at least one clamper to move along the support bar to mold the head portion of the hairpin.

7. The apparatus of claim 6 , wherein:
the at least one molding jig comprises a first jig and a second jig coupled with the at least one clamper; and
the first jig and the second jig are configured to move to be closer or farther along a guide bar.

8. An apparatus for molding a hairpin inserted into a stator core, the apparatus comprising:
a clamping unit including a connection bracket mounted on a front end of a robot arm and a pair of clampers mounted on the connection bracket and configured to be reciprocally driven in opposite directions in a straight line, wherein each clamper of the pair of clampers comprises a first end mounted on the connection bracket and a second end on which a fitting end protrudes; and
a mold unit detachably coupled with the connection bracket at a position between the pair of clampers by a fixing chuck, detachably coupled with the pair of clampers, and configured to press mold a head portion of the hairpin by a pair of molding jigs configured to be driven by the pair of clampers.

9. The apparatus of claim 8 , wherein the pair of clampers is configured to reciprocate to become closer and farther with reference to a central portion of the connection bracket.

10. The apparatus of claim 8 , wherein:
each molding jig of the pair of molding jigs comprises a mounting slot; and
the fitting ends of the pair of clampers are slidably inserted into the mounting slots.

11. The apparatus of claim 8 , wherein the fixing chuck comprises:
a fixing block mounted on the connection bracket; and
a plurality of fixing pins disposed along an exterior circumference of the fixing block, and configured to be inserted into the fixing block and to protrude from the fixing block.

12. The apparatus of claim 8 , wherein the mold unit comprises:
a fixing plate coupled to the connection bracket through the fixing chuck; and
a support bar fixed to the fixing plate,
wherein the pair of molding jigs is configured to be driven by the pair of clampers to move along the support bar to mold the head portion of the hairpin.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp
• Kia Corp

Inventors

• Choi Seung Min

Classifications

• Y10T29/49002

  Electrical device making · CPC title

• Y10T29/49009

  Dynamoelectric machine · CPC title

• B21F1/004 Primary

  by means of press-type tooling · CPC title

• B21F45/00

  Wire-working in the manufacture of other particular articles (of pins, needles, nails, hairpins B21G; of chains B21L) · CPC title

• B21F23/00

  Feeding wire in wire-working machines or apparatus · CPC title