Internal bracing clamp with tightened side face and adjustable inner diameter and machining method of internal bracing clamp

A technology of internal support fixtures and processing methods, applied in metal processing equipment, metal processing machinery parts, clamping, etc., can solve the problems of poor precision of blanks, unreachable precision, large size span, etc., and achieve large size span and convenient operation , strong operational effect

Active Publication Date: 2015-12-02
NANJING SANLE GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: The purpose of the present invention is to solve the deficiencies of the prior art and provide a more reasonable structural design with side tightening and inner diameter adjustable inner support fixture, which can realize large size span, high precision requirements, multiple The secondary processing of poor precision of material welded component blanks can overcome the defect that the precision of fixed-diameter mandrels and commonly used end-face tightening inner support fixtures cannot meet the standards, and can realize the dimensional changes of components during the development stage without reprocessing the fixtures.

Method used

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  • Internal bracing clamp with tightened side face and adjustable inner diameter and machining method of internal bracing clamp
  • Internal bracing clamp with tightened side face and adjustable inner diameter and machining method of internal bracing clamp

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Such as figure 1 and figure 2 Shown, a kind of side tightening and internal diameter adjustable internal support fixture, it comprises: open sleeve (1), the fixed block (2) that is fixed on the outer circle surface of open sleeve (1), is fixed on the fixed block ( 2) The adjustment block (3) on the top, the tensioning mandrel (4) installed in the split sleeve (1), and the side of the big end of the split sleeve (1) are provided with 3 tightening screw holes, and the tightening screw holes A tightening screw (5) is installed inside, and the tightening screw (5) tightens and locks one end of the tensioning mandrel (4) in the open sleeve (1);

[0031] The contact surfaces of the fixed block (2) and the adjusting block (3) are connected in tooth form; the contact surfaces of the fixed block (2) and the adjusting block (3) are taper at an angle of 2 degrees;

[0032] An inner support ring (6) is installed between the open end of the open sleeve (1) and the tension mandrel...

Embodiment 2

[0039] A method for processing an inner support fixture with side tightening and inner diameter adjustable, characterized in that it includes the following steps:

[0040] 1) Turning a cylinder with an outer diameter of 60mm, an inner hole diameter of 35mm, and a length of 60mm; wire cutting: vertically cut the cylinder into six equal parts, and the gap between each equal part is 2mm, and the cutting results in 6 6 fixed blocks (2) and 6 adjustable blocks (3), then clamped with a vise, cut 60° teeth on the contact surface of the fixed block (2) and the adjusted block (3), and cut at the same time to obtain 2° taper; miller: process the waist-shaped groove on the fixed block (2) and the adjustment block (3); fitter: then process the threaded holes and Via;

[0041] 2) Turning of the tensioning mandrel (4) and inner support ring (6);

[0042] 3) Tighten the screw (5) and turn it with the screw.

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Abstract

The invention discloses an internal bracing clamp with a tightened side face and the adjustable inner diameter. The internal bracing clamp comprises an open sleeve (1), fixed blocks (2) fixed to the outer circle surface of the open sleeve (1), adjusting blocks (3) fixed to the fixed blocks (2) and a tensioning central spindle (4) arranged in the open sleeve (1). A tightening screw hole is formed in the side face of the large end of the open sleeve (1), a tightening screw (5) is arranged in the tightening screw hole, and one end of the tensioning central spindle (4) is clamped and locked by the tightening screw (5). The contact faces of the fixed blocks (2) and the adjusting blocks (3) are in toothed connection and have 2-degree taper. The internal bracing clamp is reasonable in structural design, secondary machining on poor-precision multi-material welding assembly blanks which are large in dimension span and high in precision requirement can be achieved, the defects that an internal bracing clamp with a fixed-diameter core rod and a tightened end face cannot meet the standard of precision can be overcome, and the internal bracing clamp can be used for locating inner holes of fixed-diameter blind hole parts.

Description

technical field [0001] The invention relates to a fixture device for fixing mechanical equipment, in particular to an inner support fixture with side tightening and inner diameter adjustable. Background technique [0002] The electron gun bracket assembly is a key component in the millimeter wave traveling wave tube. Its function is to protect the electron gun. It has high strength, can withstand high and low temperatures, and maintains the vacuum inside the tube. It is welded by high-temperature welding of multiple parts of different materials. The bracket assembly will be deformed after high-temperature welding, and the precision of the blank is low, and its dimensional accuracy, coaxiality and roughness have high requirements. It is difficult to process components that meet the design requirements by conventional machining methods, which has become a bottleneck in the research and development process of this type of tube. [0003] Therefore, it is necessary to study and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q3/00B23P15/00
CPCB23P15/00B23Q3/00B23Q2703/10
Inventor 刘俊吴亚琴许泳张春晖姚建波孙丽
Owner NANJING SANLE GROUP
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