STAMPING TOOL
A stamping tool for stamping a product having an extending portion includes an upper mold having an inserting punch of which a bottom end defines an inclined pressing surface exposed under the upper mold, and a lower mold including an adjusting element, a sliding block, a returning block, a returning bolt and an elastic element. The returning bolt is inserted in the elastic element, and then screwed in the sliding block through the returning block. The sliding block is slidable between the returning block and the adjusting element and has one corner provided with an inclined abutting surface. The inclined pressing surface presses the abutting surface to push the sliding block and the returning bolt to slide towards the adjusting element so as to make the extending portion clipped between the sliding block and the adjusting element for modulating the product.
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1. Field of the Invention
The present invention generally relates to a stamping tool, and more particularly to a stamping tool capable of modulating deflection of a product stamped therein.
2. The Related Art
In a process of stamping a product in a conventional stamping tool, the product usually can't reach the request of the dimension. Moreover, the product is easily deformed or deflected during charging blocks to the stamping tool or returning materials from the stamping tool. In order to make sure the quality of the product, the deformed product or the deflected product need be taken out from the stamping tool. Then the deformed product and the deflected product should be modulated or modified to make them meet the standard request. So manufacturing procedures are increased, and working efficiency is lowered.
SUMMARY OF THE INVENTIONAn object of the present invention is to provide a stamping tool for stamping a product which has a base portion, and an extending portion extended from a bottom of the base portion. The stamping tool includes an upper mold and a lower mold. The upper mold includes an inserting punch. A bottom end of the inserting punch defines an inclined pressing surface exposed out from a bottom of the upper mold. The lower mold includes a lower mold plate, a short die pad and a lower modulating mechanism which includes an adjusting element, a sliding block, a modulating piece, a returning block, a returning bolt and an elastic element. The short die pad and the adjusting element are mounted on a top of the lower mold plate and abut against each other. The returning block is mounted on the top of the lower mold plate apart from the adjusting element. The sliding block is slidably mounted on the top of the lower mold plate between the returning block and the adjusting element. The returning bolt is screwed into the sliding block through the returning block to drive the sliding block to abut against the returning block and be apart from the adjusting element under the action of the elastic element. A top of the sliding block is concaved downward to form a receiving groove opened to face the adjusting element for receiving the modulating piece therein so as to carry the modulating piece to move in on or away from the adjusting element. One corner of the top of the sliding block opposite to the receiving groove is cut off to form an inclined abutting surface matching with the inclined pressing surface. When the stamping tool is closed, the base portion of the product is positioned between the adjusting element, the modulating piece and the upper mold with the extending portion being suspended between the adjusting element and the modulating piece. The inclined pressing surface of the inserting punch presses the abutting surface to push the sliding block together with the modulating piece and the returning bolt to slide towards the adjusting element and away from the returning block so as to make the extending portion clipped between the modulating piece and the adjusting element for modulating the product to be a standard shape in the stamping tool.
As described above, the stamping tool modulates the product in the stamping tool to be a standard shape by means of the modulating mechanism. As a result, the product can be parted from the stamping tool without any deformation. So, defective rate of the product is lowered, and manufacturing efficiency is improved.
The present invention will be apparent to those skilled in the art by reading the following description, with reference to the attached drawings, in which:
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As described above, the stamping tool 100 modulates the product 200 in the stamping tool 100 to be a standard shape by means of the modulating mechanism 30. As a result, the product 200 can be parted from the stamping tool 100 without any deformation. So, defective rate of the product 200 is lowered, and manufacturing efficiency is improved.
Claims
1. A stamping tool for stamping a product which has a base portion and an extending portion extended from a bottom of the base portion, comprising:
- an upper mold including an inserting punch, a bottom end of the inserting punch defining an inclined pressing surface exposed out from a bottom of the upper mold; and
- a lower mold including a lower mold plate, a short die pad and a lower modulating mechanism which includes an adjusting element, a sliding block, a modulating piece, a returning block, a returning bolt and an elastic element, the short die pad and the adjusting element being mounted on a top of the lower mold plate and abutting against each other, the returning block being mounted on the top of the lower mold plate apart from the adjusting element, the sliding block being slidably mounted on the top of the lower mold plate between the returning block and the adjusting element, the returning bolt being screwed into the sliding block through the returning block to drive the sliding block to abut against the returning block and be apart from the adjusting element under the action of the elastic element, a top of the sliding block being concaved downward to form a receiving groove opened to face the adjusting element for receiving the modulating piece therein so as to carry the modulating piece to move in on or away from the adjusting element, one corner of the top of the sliding block opposite to the receiving groove being cut off to form an inclined abutting surface matching with the inclined pressing surface;
- wherein when the stamping tool is closed, the base portion of the product is positioned between the adjusting element, the modulating piece and the upper mold with the extending portion being suspended between the adjusting element and the modulating piece, and the inclined pressing surface of the inserting punch presses the abutting surface to push the sliding block together with the modulating piece and the returning bolt to slide towards the adjusting element and away from the returning block so as to make the extending portion clipped between the modulating piece and the adjusting element for modulating the product to be a standard shape in the stamping tool.
2. The stamping tool as claimed in claim 1, wherein one end of the modulating piece facing the adjusting element is protruded towards the adjusting element to form an adjusting pin capable of being inserted in the extending portion of the product to position the extending portion between the adjusting element and the modulating piece, when the stamping tool is closed.
Type: Application
Filed: Jun 10, 2011
Publication Date: Dec 13, 2012
Applicant: Cheng Uei Precision Industry Co., LTD. (New Taipei City)
Inventors: ZHI-QIANG CHEN (Guang-Dong), Dong-Hua Tan (Guang-Dong), Sen-Hsiung Hu (New Taipei City)
Application Number: 13/158,351
International Classification: B21D 37/12 (20060101); B21D 22/06 (20060101);