CN209850050U

CN209850050U - Quick tapping device for transformer installation

Info

Publication number: CN209850050U
Application number: CN201920306451.6U
Authority: CN
Inventors: 吴爱国; 陈亚东
Original assignee: JIANGSU HENGTE GROUP VALTTE ELECTRIC CO Ltd
Current assignee: JIANGSU HENGTE GROUP VALTTE ELECTRIC CO Ltd
Priority date: 2019-03-12
Filing date: 2019-03-12
Publication date: 2019-12-27
Anticipated expiration: 2029-03-12

Abstract

The utility model discloses a quick chasing bar of transformer installation, including screw tap, tapping handle with the screw tap is connected, quick chasing bar of transformer installation still includes pull rod, guide sleeve, bayonet lock, first spring, second spring, the center of screw tap is equipped with the through-hole. The pull rod penetrates through the screw tap through the through hole. And the pull rod penetrates through the guide sleeve, the first spring and the second spring, and the pull rod is coaxial with the screw tap, the guide sleeve, the first spring and the second spring. The tapping handle is fixedly connected with one end of the pull rod, and the first spring is located between the tapping handle and the guide sleeve. Has the advantages that: this threading apparatus operation location is accurate, simple structure, and the tapping is quick, and the screw tap atress is even, has avoided the fracture of screw tap.

Description

Quick tapping device for transformer installation

Technical Field

The utility model relates to a pincers worker's instrument, concretely relates to chasing bar, a can realize the tapper of quick tapping.

Background

A tap is a tool for machining internal threads of a hole. The method is generally used for thread machining of common lathes, drilling machines and tapping machines.

Tapping is a relatively difficult process, in which a tap is buried in a workpiece to cut, and the machining load is greater than that of other tools. And the contact surface of the tap with the workpiece along the threads is very large, it must contain and remove chips when cutting the threads. Because most of the existing screw taps are manually operated, the manual operation positioning is not accurate enough, and the screw taps can be broken due to excessive force. The traditional tap adopts manual operation to increase the difficulty of tapping. Therefore, on the basis of the existing manual screw tap structure, a brand-new technical scheme needs to be provided, and the technical problems that the traditional screw tap is inaccurate in manual operation and positioning and the screw tap is broken are solved through the technical scheme.

Disclosure of Invention

The utility model discloses synthesize the not enough of background art, provide a quick chasing bar, the device simple structure, the tapping is quick, and the screw tap atress is even, has avoided the fracture of screw tap.

The utility model provides a following technical scheme: quick chasing bar of transformer installation, including screw tap, tapping handle with the screw tap is connected, quick chasing bar of transformer installation still includes pull rod, guide sleeve, bayonet lock, first spring, second spring, the center of screw tap is equipped with the through-hole, the pull rod passes through the through-hole runs through the screw tap. And the pull rod penetrates through the guide sleeve, the first spring and the second spring, and the pull rod is coaxial with the screw tap, the guide sleeve, the first spring and the second spring. The tapping handle is fixedly connected with one end of the pull rod, and the first spring is located between the tapping handle and the guide sleeve.

The inner cylindrical wall of the guide sleeve is in clearance fit with the screw tap, the bayonet lock is movably connected with the other end of the pull rod, and the second spring is located between the tail end of the screw tap and the inner wall of the guide sleeve.

The tail end of the screw tap is fixedly connected with a guide piston. The guide sleeve is provided with a contact plate.

The utility model has the advantages that: the pull rod passes through the through-hole runs through the screw tap, just the pull rod runs through uide sleeve, first spring, second spring. And the pull rod is used for tapping and positioning the screw tap. So that the axis of the tap is coaxial with the hole to be tapped. And is fixed by the tension of the first spring, and provides tapping driving pressure for the tap through the second spring. Only need rotate when carrying out the tapping operation tapping handle can steadily tap. This threading apparatus operation location is accurate, simple structure, and the tapping is quick, and the screw tap atress is even, has avoided the fracture of screw tap.

Drawings

Fig. 1 is the structure front view of the transformer installation quick tapping device of the present invention.

Fig. 2 is a sectional view taken along line a-a of fig. 1.

Detailed Description

The invention is further described with reference to the following drawings and specific embodiments.

In fig. 1 and 2, a tap 1, a tapping handle 2, a pull rod 3, a guide sleeve 4, a bayonet 5, a first spring 6, a second spring 7, a guide piston 8 and a contact plate 9 are shown.

Quick chasing bar is installed to transformer, including screw tap 1, tapping handle 2 and screw tap 1 are connected, quick chasing bar is installed to the transformer still includes pull rod 3, guide sleeve 4, bayonet 5, first spring 6, second spring 7, and wherein the center of screw tap 1 is equipped with through-hole 10, and pull rod 3 runs through screw tap 1 through-hole 10, and pull rod 3 runs through guide sleeve 4, first spring 6, second spring 7. The pull rod 3 is coaxial with the tap 1, the guide sleeve 4, the first spring 6 and the second spring 7. The tapping handle 2 is fixedly connected with one end of the pull rod 3. A first spring 6 is located between the tapping handle 2 and the guide sleeve 4. The bayonet 5 is movably connected with the other end of the pull rod 3, and the bayonet 5 can rotate around the end part of the pull rod 3. The second spring 7 is located between the trailing end of the tap 1 and the inner wall of the guide sleeve 4. The second spring 7 is used for providing tapping pressure of the tap 1 to the tapping hole.

The first spring 6 is a lock spring, and the draw bar 3 is passed through the hole to be tapped so that the end of the draw bar 3 is drilled out from the side of the hole to be tapped, and the bayonet 5 is rotated by 90 degrees. Tensioned under the tension of the first spring 6. The contact plate 9 of the guide sleeve 4 is tightly attached to the workpiece, and tapping is convenient. The inner cylindrical wall of the guide sleeve 4 is in clearance fit with the tap 1, so that the tap 1 can be conveniently used for sliding tapping along the inner cylindrical wall of the guide sleeve 4.

The tail end of the tap 1 is fixedly connected with a guide piston 8. The purpose of the addition of the guide piston 8 is to facilitate tapping by sliding the tap 1 along the inner cylindrical wall of the guide sleeve 4.

The guide sleeve 4 is provided with a contact plate 9. The contact plate 9 makes the tap 1 perpendicular to the surface of the workpiece, making the positioning more accurate.

Claims

1. The transformer installation quick tapping device comprises a screw tap (1), a tapping handle (2), wherein the tapping handle (2) is connected with the screw tap (1), and is characterized in that the transformer installation quick tapping device further comprises a pull rod (3), a guide sleeve (4), a clamping pin (5), a first spring (6) and a second spring (7), a through hole (10) is formed in the center of the screw tap (1), the pull rod (3) penetrates through the screw tap (1) through the through hole (10), the pull rod (3) penetrates through the guide sleeve (4), the first spring (6) and the second spring (7), and the pull rod (3) is coaxial with the screw tap (1), the guide sleeve (4), the first spring (6) and the second spring (7); the tapping handle (2) is fixedly connected with one end of the pull rod (3), the first spring (6) is located between the tapping handle (2) and the guide sleeve (4), the inner cylindrical wall of the guide sleeve (4) is in clearance fit with the screw tap (1), the bayonet lock (5) is movably connected with the other end of the pull rod (3), and the second spring (7) is located between the tail end of the screw tap (1) and the inner wall of the guide sleeve (4).

2. Transformer installation quick tapping device according to claim 1, characterized in that the tail end of the tap (1) is fixedly connected with a guiding piston (8).

3. Transformer installation quick tapping device according to claim 1, wherein said guide sleeve (4) is provided with contact plates (9).