CN213288816U

CN213288816U - Counter boring cutter

Info

Publication number: CN213288816U
Application number: CN202022212921.8U
Authority: CN
Inventors: 张静; 沈婷; 秦金健; 姜淋; 师晓东; 朱晓华
Original assignee: Jiangsu Shentong Valve Co Ltd
Current assignee: Jiangsu Shentong Valve Co Ltd
Priority date: 2020-10-07
Filing date: 2020-10-07
Publication date: 2021-05-28
Anticipated expiration: 2030-10-07

Abstract

The utility model provides a counter boring cutter, includes handle of a knife, knife rest, blade holder, screw I, screw II, and the handle of a knife lower extreme is equipped with 7 font grooves, bolt hole I, screw hole II, is equipped with through-hole I, through-hole II that correspond with bolt hole I, screw hole II on the blade holder, is equipped with through-hole III, V-arrangement groove on the blade holder, fixes three angle knives in the V-arrangement groove, and the blade holder is placed in the 7 font grooves of handle of a knife, and screw I passes through-hole I, through-hole III twists bolt hole I, and screw II passes through. The beneficial effects of the utility model are that, use this counter boring cutter, do not need artificial installing, dismantling the counter boring sword, compare traditional counter boring sword, improved the work efficiency of counter boring, reduced the cost of labor.

Description

Counter boring cutter

Technical Field

The utility model relates to a counter boring cutter.

Background

At present, a counter boring cutter for the back of a part mainly comprises a cutter rest, a counter boring cutter and a screw, wherein the cutter rest is connected with a drilling machine firstly and is inserted into a part hole to be counter bored, then the counter boring cutter is inserted into the cutter rest and is fastened by the screw, the drilling machine is rotated to drive the cutter rest and the counter boring cutter to rotate, and counter boring treatment is carried out on the back of the part. After one hole is reamed, the screw is loosened to take out the countersink cutter, the cutter holder leaves the hole and then enters another hole, the countersink cutter and the screw are mounted for re-countersinking, and the operation is circulated, so that the existing countersink cutter is low in working efficiency and high in cost.

SUMMERY OF THE UTILITY MODEL

In order to solve the prior art not enough, the utility model provides a counter boring cutter.

The technical scheme of the utility model, a counter boring cutter, including handle of a knife, knife rest, blade holder, screw I, screw II, the handle of a knife lower extreme is equipped with 7 font grooves, bolt hole I, screw hole II, is equipped with through-hole I, through-hole II that correspond with bolt hole I, screw hole II on the blade holder, is equipped with through-hole III, V-arrangement groove on the knife rest, and fixed triangle sword in the V-arrangement groove, knife rest are placed in 7 font grooves of handle of a knife, and screw I passes through-hole I, through-hole III twists bolt hole I, and screw II passes through-hole II and twists bolt hole II.

Preferably, the height of the tool holder is less than the height of the 7-shaped groove at the lower end of the tool holder.

Preferably, when the side surface of the tool rest abuts against the long groove surface of the 7-shaped groove at the lower end of the tool holder, the outer circular surface of the tool rest is smaller than the outer circular surface of the tool holder.

The beneficial effects of the utility model are that, use this counter boring cutter, do not need artificial installing, dismantling the counter boring sword, compare traditional counter boring sword, improved the work efficiency of counter boring, reduced the cost of labor.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view showing a state where a side surface of the tool rest abuts against a long groove surface of a 7-shaped groove at the lower end of the tool holder;

FIG. 3 is a schematic view showing a state where the side surface of the tool holder abuts against the short groove surface of the 7-shaped groove at the lower end of the holder.

In the figure: 1. a knife handle; 2. a tool holder; 3. a tool apron; 4. a bolt hole I; 5. a threaded hole II; 6. a through hole I; 7. a through hole II; 8. a through hole III; 9. a triangular knife; 10. a screw I; 11. and a screw II.

Detailed Description

As shown in the figure, a counterboring cutter, including handle of a knife 1, knife rest 2, blade holder 3, screw I10, screw II 11, 1 lower extreme of handle of a knife is equipped with 7 font grooves, bolt hole I4, screw hole II 5, be equipped with on the blade holder with bolt hole I4, the through-hole I6 that screw hole II 5 corresponds, through-hole II 7, be equipped with through-hole III 8 on the knife rest 2, the V-arrangement groove, fixed triangle sword 9 in the V-arrangement groove, knife rest 2 places in the 7 font grooves of handle of a knife 1, screw I10 passes through-hole I6, through-hole III 8 twists bolt hole I4, the height that highly is less than 2 lower extreme 7 font grooves of knife rest 3, knife rest 2 can rotate around this screw I10, screw II 11 passes through-hole II 7 twists II 5 of bolt hole, when the side of knife rest 3 and the long slot face butt handle of 1 lower extreme 7 font grooves of. When spot facing is needed, after the spot facing cutter is connected with a drilling machine, the drilling machine reversely rotates to enable the side face of the cutter rest 2 to be in a state of being abutted to the long groove face of the 7-shaped groove at the lower end of the cutter handle 1, then the spot facing cutter is directly inserted into a hole to be machined, when machining is carried out, the drilling machine positively rotates to enable the side face of the cutter rest 2 to be in an abutting state with the short groove face of the 7-shaped groove at the lower end of the cutter handle 1, therefore, spot facing can be carried out on the hole to be machined, the drilling machine reversely rotates after spot facing is completed, the side face of the cutter rest 2 is in an abutting state with the long groove face of the 7-shaped groove at.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a counter boring cutter, includes handle of a knife, knife rest, blade holder, screw I, screw II, its characterized in that, the handle of a knife lower extreme is equipped with 7 font grooves, bolt hole I, screw hole II, be equipped with I, the through-hole II that corresponds with bolt hole I, screw hole II on the blade holder, be equipped with through-hole III, V-arrangement groove on the knife rest, fixed triangle sword in the V-arrangement groove, the 7 font grooves at the handle of a knife are placed to the knife rest, screw I passes through-hole I, III twists bolt hole I of through-hole, screw II passes II twists bolt hole II of through-hole.

2. A spot facing tool as claimed in claim 1, wherein the tool holder has a height less than the height of the 7-shaped recess in the lower end of the shank.

3. The spot facing cutter according to claim 1, wherein when the side surface of the tool holder abuts against the long groove surface of the 7-shaped groove at the lower end of the tool holder, the outer circumferential surface of the tool holder is smaller than the outer circumferential surface of the tool holder.