CN111112699A

CN111112699A - Rotatable twist drill device capable of being positioned

Info

Publication number: CN111112699A
Application number: CN201911358564.1A
Authority: CN
Inventors: 崔联合; 万文龙; 范家森; 谢驰; 李鑫依
Original assignee: Changzhou Vocational Institute of Mechatronic Technology
Current assignee: Changzhou Vocational Institute of Mechatronic Technology
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-05-08

Abstract

The invention belongs to the technical field of machining, and relates to a positionable and rotatable twist drill device. The device comprises a hard alloy tool bit welding twist drill, a frame, a bearing seat, a bearing, a large gear, an inner taper sleeve shaft, a cylindrical pin, a twist drill flat tail positioning sleeve, a motor and a motor seat. Two bearing blocks are fixed on the frame, the bearings are embedded in the bearing blocks, and two ends of the inner taper sleeve shaft are connected with the bearings. The large gear is fixed with the outer surface of the inner taper sleeve shaft through a key, and the bottom end of the inner taper sleeve shaft is fixed with the flat tail positioning sleeve of the twist drill through two cylindrical pins. The motor is fixed on the motor base through bolts and nuts, and the motor base is fixed with the rack. The output end of the motor is connected with a small gear, the small gear is meshed with the large gear, and the number of teeth of the small gear is the same as that of the large gear. The taper shank sleeve and the flat tail of the twist drill are used for accurately positioning; the rotating speeds of the twist drills are ensured to be the same, so that the heating is ensured to be uniform, and the welding wires are welded uniformly; the work station can be properly increased, and the welding efficiency is 5-6 times of that of workers.

Description

Rotatable twist drill device capable of being positioned

Technical Field

The invention belongs to the technical field of machining, and relates to a positionable and rotatable twist drill device.

Background

The twist drill with the hard alloy cutter head sold in the market at present is welded manually, during manual welding, a welding wire is manually placed at a heating and melting part, the welding speed and the welding wire adding amount are all determined by the experience of workers, so that the welding wire of the welded twist drill is not uniformly melted, the welding quality is difficult to guarantee, and the production efficiency is low.

Disclosure of Invention

The invention provides a positionable and rotatable twist drill device, which mainly aims to perform early positioning of a twist drill during welding of the twist drill and guarantee uniform temperature of a welding part during later heating, and finally guarantees the quality and efficiency of welding the twist drill by a hard alloy tool bit.

In order to solve the technical problems, the technical scheme of the invention is as follows:

a positionable and rotatable twist drill device comprises a hard alloy tool bit welding twist drill, a frame, a bearing seat, a bearing, a large gear, an inner taper sleeve shaft, a cylindrical pin, a twist drill flat tail positioning sleeve, a motor and a motor seat.

Two bearing blocks are fixed on the frame, the bearings are embedded in the bearing blocks, and two ends of the inner taper sleeve shaft are connected with the bearings. The large gear is fixed with the outer surface of the inner taper sleeve shaft through a key, and the bottom end of the inner taper sleeve shaft is fixed with the flat tail positioning sleeve of the twist drill through two cylindrical pins.

The motor is fixed on the motor base through bolts and nuts, and the motor base is fixed with the rack. The output end of the motor is connected with a small gear, the small gear is meshed with the large gear, and the number of teeth of the small gear is the same as that of the large gear.

The hard alloy tool bit welding twist drill is arranged in the inner taper sleeve shaft, and the bottom of the hard alloy tool bit welding twist drill is arranged between the surface A and the surface B on the flat tail positioning sleeve of the twist drill.

The outer portion of the twist drill flat tail positioning sleeve is of a circular structure, a vertical surface A and a vertical surface B are arranged inside the circular ring, the surface A and the surface B are perpendicular to each other, and a gap is formed between the surface A and the surface B.

Furthermore, the outside of the twist drill flat tail positioning sleeve is of two semicircular buckle type structures, and the two semicircular buckle types can clamp the tail part of the hard alloy tool bit welding twist drill.

Furthermore, the vertical surface A and the vertical surface B which are arranged in the twist drill flat tail positioning sleeve are made of stainless steel materials.

When carbide tool bit welding fluted drill packs into in the inner taper sleeve axle, guarantee carbide tool bit welding fluted drill accurate positioning by A face and the B face on taper hole and the fluted drill flat tail position sleeve, when installing the pinion rotation on the motor, because gear wheel intermeshing, and the number of teeth is the same, when consequently each carbide tool bit welding fluted drill rotates, the rotational speed is the same, when the welding, guarantee the uniformity of welding seam, owing to can weld many fluted drills simultaneously, so production efficiency obviously improves.

The invention has the beneficial effects that:

(1) accurately positioning the flat tail of the twist drill by using the taper shank sleeve;

(2) the small gear on the motor drives the big gears with the same number of teeth to transmit, so that the rotating speeds of the twist drills are the same, the heating is uniform, and the welding wires are uniformly welded;

(3) the work station can be properly increased, and the welding efficiency is 5-6 times of that of workers.

Drawings

Fig. 1 is a three-dimensional view of a positionable rotatable twist drill device.

Fig. 2 is an elevation view of a positionable rotatable twist drill device.

Fig. 3 is a top view of a positionable rotatable twist drill apparatus.

Fig. 4 is a side view of a positionable rotatable twist drill device.

Fig. 5 is a schematic view of a twist drill flat tail positioning sleeve.

In the figure: 1. welding a twist drill with a hard alloy tool bit; 2. a frame; 3. a bearing seat; 4. a bearing; 5. a key; 6. a bull gear; 7. an inner taper sleeve shaft; 8. a cylindrical pin; 9. a twist drill flat tail positioning sleeve; 10. a pinion gear; 11. a motor; 12. a nut; 13. a bolt; 14. a motor base.

Detailed Description

In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.

Example 1

The utility model provides a but fix a position rotary twist drill device, includes carbide tool bit welding twist drill 1, frame 2, bearing frame 3, bearing 4, gear wheel 6, interior taper sleeve axle 7, cylindric lock 8, the flat tail position sleeve 9 of twist drill, motor 11 and motor cabinet 14.

Two bearing blocks 3 are fixed on the frame 2, a bearing 4 is embedded in the bearing blocks 3, and two ends of an inner taper sleeve shaft 7 are connected with the bearing 4. The bull gear 6 is fixed together through key 5 and the surface of interior taper sleeve axle 7, and the bottom of interior taper sleeve axle 7 is fixed with fluted drill flat tail position sleeve 9 through two cylindric locks 8.

The motor 11 is fixed on a motor base 14 through a bolt 12 and a nut 13, and the motor base 14 is fixed with the frame 2. The output end of the motor 11 is connected with a small gear 10, and the small gear 10 is meshed with the large gear 6 with the same number of teeth.

The hard alloy tool bit welding twist drill 1 is arranged in the inner taper sleeve shaft 7, and the bottom of the hard alloy tool bit welding twist drill 1 is arranged between the surface A and the surface B on the flat tail positioning sleeve 9 of the twist drill.

The outer portion of the twist drill flat tail positioning sleeve 9 is of a circular structure, a vertical surface A and a vertical surface B are arranged inside the circular ring, the surface A and the surface B are perpendicular to each other, and a gap is formed between the surface A and the surface B. The vertical surface A and the vertical surface B which are arranged in the twist drill flat tail positioning sleeve 9 are made of stainless steel materials.

Example 2

The outside of fluted twist drill plat tail position sleeve 9 be two semicircle buckle formula structures, fluted twist drill plat tail position sleeve 9 is inside to be equipped with vertically A face and B face and to be stainless steel material.

Claims

1. A positionable and rotatable twist drill device is characterized by comprising a hard alloy tool bit welding twist drill (1), a frame (2), a bearing seat (3), a bearing (4), a large gear (6), an inner taper sleeve shaft (7), a cylindrical pin (8), a twist drill flat tail positioning sleeve (9), a motor (11) and a motor base (14);

two bearing blocks (3) are fixed on the frame (2), the bearings (4) are embedded in the bearing blocks (3), and two ends of the inner cone sleeve shaft (7) are connected with the bearings (4); the large gear (6) is fixed with the outer surface of the inner taper sleeve shaft (7) through a key (5), and the bottom end of the inner taper sleeve shaft (7) is fixed with a twist drill flat tail positioning sleeve (9) through two cylindrical pins (8); the motor (11) is fixed on the motor base (14), and the motor base (14) is fixed with the rack (2); the output end of the motor (11) is connected with a small gear (10), the small gear (10) is meshed with the large gear (6), and the number of teeth is the same; the hard alloy tool bit welding twist drill (1) is arranged in the inner taper sleeve shaft (7), and the bottom of the hard alloy tool bit welding twist drill (1) is arranged between the surface A and the surface B on the flat tail positioning sleeve (9) of the twist drill;

the outer portion of the twist drill flat tail positioning sleeve (9) is of a circular structure, a vertical surface A and a vertical surface B are arranged inside the circular ring, the surface A and the surface B are perpendicular to each other, and a gap is formed between the surface A and the surface B.

2. A positionable and rotatable twist drill device according to claim 1, wherein the outer portion of the positioning sleeve (9) of the flat tail of the twist drill is provided with two semicircular snap-in structures, and the two semicircular snap-in structures can clamp the tail of the hard alloy bit welding twist drill (1).

3. A positionable and rotatable twist drill device according to claim 1 or 2, wherein the inside of the lug locating sleeve (9) having perpendicular a and B surfaces is of stainless steel.