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a hole punch

A technology for connecting holes and barrels, applied in boring/drilling, drilling/drilling equipment, manufacturing tools, etc., can solve problems such as waste, collision of drill bit and hole wall, affecting the quality of hole forming, and eliminate waste. , reduce material waste, improve the effect of drilling accuracy and quality

Active Publication Date: 2022-01-28
陈绍林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After the above-mentioned hole opener completes the hole opening, the waste material formed in the cover body remains in the hole, and the above-mentioned waste material is usually broken up by the drill bit in the follow-up, which has a certain waste, and there is a certain probability that the drill bit will collide with the hole wall during the breaking process. Collision occurs, affecting hole forming quality

Method used

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Experimental program
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Effect test

Embodiment 1

[0036] Such as figure 1 As shown, the hole digging device comprises a roughly barrel-shaped barrel body 1 with an opening at the lower end of the barrel body 1, and a shaft portion 1a coaxial with the barrel body 1 is formed on the top wall of the barrel body 1, and in this embodiment, Preferably, the barrel body 1 and the shaft portion 1a are of an integral structure.

[0037] Among them, such as image 3 with Figure 5As shown, a knife block 2 is provided on the bottom wall of the barrel body 1, and there are two knife blocks 2 which are evenly distributed along the circumferential direction of the barrel body 1. The knife block 2 is arc-shaped, the top wall of the knife block 2 is close to the bottom wall of the barrel body 1, the bottom of the knife block 2 is provided with a row of longitudinal blades 2a continuously distributed along the length direction of the knife block 2, and the inner side of the knife block 2 is provided with The transverse cutting edges 2b are ...

Embodiment 2

[0050] The structure and principle of this second embodiment are basically the same as that of the first embodiment, except that the locking structure includes a threaded hole vertically penetrating through the barrel body 1, and the knife block 2 is provided with a limiter facing the threaded hole. Position hole, screw rod is screwed in threaded hole, and rotating screw rod can make its lower end stretch into or stretch out limit hole.

Embodiment 3

[0052] The structure and principle of the third embodiment are basically the same as those of the first embodiment, except that the driving part includes a rotating motor fixed in the groove 1b, and the main shaft of the rotating motor is fixedly connected with the above-mentioned rod 10 .

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Abstract

The invention provides a hole puncher, which belongs to the technical field of machinery. The hole digging device includes a barrel-shaped barrel body with an opening at the lower end of the barrel body. A shaft portion is formed on the top wall of the barrel body. Arc-shaped, the bottoms of the two knife blocks are equipped with longitudinal blades, and the barrel body is provided with two through holes penetrating in the axial direction. The two through holes are vertically fixed with rotating shafts. The two knife blocks are respectively hinged with the lower ends of the two rotating shafts. The upper end protrudes through the hole and is hinged with a counterweight. There are also two protruding posts on the top wall of the barrel. The two counterweights are respectively connected to the two protruding posts through the first spring. The direction of rotation of the barrel body is distributed alternately; the barrel body is also equipped with two locking structures for respectively restricting the coaxial arrangement of the two knife blocks and the barrel body. The restriction of the locking structure on the knife block can be released by external force. Has a horizontal blade. This hole cutter maintains scrap integrity.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a hole puncher. Background technique [0002] The hole saw is also called a hole saw or a hole saw or a hole saw. It refers to a special circular saw for cutting circular holes in modern industry or engineering. It is simple and flexible to operate, easy to carry, safe, and has a wide range of uses. The hole cutter is installed on an ordinary electric drill, and can be conveniently cut on any curved surface such as a plane or a spherical surface of various plates such as copper, iron, stainless steel, plexiglass, wood, and plastic. [0003] Existing hole punchers, such as a hole puncher disclosed in the Chinese Patent Library (Application No.: 201310039836.8), include a circular cover bottom and a circumferential side wall extending vertically along the outer circumference of the cover bottom. The center of the bottom is provided with a connecting hole, the circumferential side w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B41/00B23B51/04
CPCB23B41/00B23B51/04
Inventor 陈绍林
Owner 陈绍林