CN212169032U

CN212169032U - Deep hole machining positioning tool

Info

Publication number: CN212169032U
Application number: CN202020401167.XU
Authority: CN
Inventors: 张静; 王德军; 施海健; 施凯丽
Original assignee: Jiangsu Shentong Valve Co Ltd
Current assignee: Jiangsu Shentong Valve Co Ltd
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2020-12-18
Anticipated expiration: 2030-03-26

Abstract

The utility model relates to a deep hole processing location frock, including locating plate, drill bushing frame calibration board, drill bushing frame, drill bushing frame calibration board, drill bushing frame are all fixed on the locating plate, be equipped with H type valve body location tang on the locating plate, drill bushing frame passes through interference assembly with the drill bushing and is connected, the drill bushing is located the locating plate and keeps away from drill bit one side. The beneficial effects of the utility model are that, prevented the radial runout degree of drill bit, ensured the axiality of blind hole, improved the assembly quality and the life of follow-up valve.

Description

Deep hole machining positioning tool

Technical Field

The utility model relates to a BTA location frock.

Background

The tail end of a shaft hole of a part of butterfly valve body at present is a blind hole far away from the end face of a flange in the valve body, and when the blind hole is machined, a lengthened drill bit is used for directly machining. When the drill bit drills through the hole in the upper portion of the valve body, the coaxial hole is arranged on the lower portion of the channel crossing the valve body in a crossing mode, when the drill bit reaches the shaft hole in the lower portion, the radial runout degree of the drill bit is larger and larger, the coaxiality of the blind hole is poor, and the assembly quality and the service life of a follow-up valve are greatly affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a location frock that can be to deep hole processing is provided.

In order to solve the above-mentioned technology, the utility model discloses the technical scheme who adopts is: the deep hole machining and positioning tool comprises a positioning plate, a drill bushing frame calibration plate, a drill bushing frame and a drill bushing, wherein the drill bushing frame calibration plate and the drill bushing frame are fixed on the positioning plate, and an H-shaped valve body positioning spigot is arranged on the positioning plate.

Further, the drill bushing frame is connected with the drill bushing through interference fit.

Further, the drill bushing is located on one side, away from the drill bit, of the positioning plate.

By adopting the technical scheme, the drilling tool has the beneficial effects that the radial runout degree of the drill bit is prevented, the coaxiality of the blind hole is ensured, the assembly quality of a subsequent valve is improved, and the service life of the subsequent valve is prolonged.

Drawings

Fig. 1 is a side view of the structure of the present invention;

FIG. 2 is a structural view of the present invention;

fig. 3 is a diagram of an embodiment of the present invention.

In the figure: 1. positioning a plate; 2. drilling a sleeve frame calibration plate; 3. drilling a sleeve frame; 4. drilling a sleeve; 5, positioning a spigot of the H-shaped valve body; 6. a valve body; 7. the upper shaft hole of the valve body; 8. the lower shaft hole of the valve body.

Detailed Description

As shown in the attached drawing, a deep hole processing and positioning tool comprises a positioning plate, a drill bushing frame calibration plate, a drill bushing frame and a drill bushing, wherein the drill bushing frame calibration plate and the drill bushing frame are fixed on the positioning plate, the size of the drill bushing is the same as that of a shaft hole to be processed of a valve body, an H-shaped valve body positioning spigot is directly processed on the positioning plate, when the tool is processed, a spigot at the end part of the valve body is sleeved on the tool and then clamped on a boring machine worktable, the center of the valve shaft hole to be processed is aligned with the center of the tool drill bushing through the parallelism and the perpendicularity of the drill bushing frame calibration plate and the valve body or through whether the vertical distance between the two ends of the drill bushing frame calibration plate and the inner wall of the valve body is equal or not, the drill bushing is far away from the drill bit and close to a blind hole at the rear end of the valve body, the drill bushing is firstly used for drilling the shaft hole at the upper part of the, the drill bit is prevented from jumping, so that the coaxiality of the upper shaft hole and the lower shaft hole is ensured.

Claims

1. The deep hole machining and positioning tool comprises a positioning plate, a drill bushing frame calibration plate, a drill bushing frame and a drill bushing, and is characterized in that the drill bushing frame calibration plate and the drill bushing frame are fixed on the positioning plate, and an H-shaped valve body positioning spigot is arranged on the positioning plate.

2. The deep hole machining positioning tool according to claim 1, wherein the drill bushing frame is connected with the drill bushing through interference fit.

3. The deep hole machining positioning tool according to claim 2, wherein the drill bushing is located on one side of the positioning plate, which is far away from the drill bit.