阅读说明：本技术 一种锥面密封面修正工装 (Conical surface sealing surface correction tool ) 是由 陈晓昌 欧阳承 傅仁科 黄敏 吴凡 李俊强 喻鹏 曾国平 于 2019-10-08 设计创作，主要内容包括：本发明提供一种锥面密封面修正工装,包括定位套(2)、锥面修正刀片(3)和固定旋紧夹具(4),并设计有调整垫片(5)加装在修复工件(1)和定位套(2)中间,以满足修复工件(1)螺纹长短不一的需求。同时,定位套(2)的内螺纹与内孔形位公差由锥面密封面修复公差指标确定,锥面修正刀片(3)的外圆柱面与定位套(2)内孔配合间隙由锥面密封面修复公差确定,锥面修正刀片(3)工作面与修复工件(1)的锥面密封面的同轴度由修复工件(1)安装同轴度要求确定。该发明实现了损伤的锥面密封面在不拆除或局部拆除的情况下快速修复,并满足密封性能要求。(The invention provides a conical surface sealing surface correcting tool which comprises a positioning sleeve (2), a conical surface correcting blade (3) and a fixed screwing clamp (4), wherein an adjusting gasket (5) is additionally arranged between a repaired workpiece (1) and the positioning sleeve (2) so as to meet the requirement of different thread lengths of the repaired workpiece (1). Meanwhile, the form and position tolerance of the internal thread and the inner hole of the positioning sleeve (2) is determined by the conical surface sealing surface repair tolerance index, the fit clearance between the outer cylindrical surface of the conical surface correcting blade (3) and the inner hole of the positioning sleeve (2) is determined by the conical surface sealing surface repair tolerance index, and the coaxiality of the working surface of the conical surface correcting blade (3) and the conical surface sealing surface of the repair workpiece (1) is determined by the installation coaxiality requirement of the repair workpiece (1). The invention realizes the quick repair of the damaged conical surface sealing surface under the condition of not removing or partially removing, and meets the requirement of sealing performance.)

1. The utility model provides a sealed face of conical surface revises frock which characterized in that: the conical surface sealing surface correcting tool is composed of a locating sleeve (2), a conical surface correcting blade (3) and a fixed screwing clamp (4), the locating sleeve (2) is connected with a repairing workpiece (1), the conical surface correcting blade (3) is connected with the fixed screwing clamp (4), and the fixed screwing clamp (4) is connected with the locating sleeve (2).

2. The tool for correcting the conical surface sealing surface according to claim 1, wherein: the locating sleeve (2) is in threaded connection with the repair workpiece (1).

3. The conical surface sealing surface correction tool according to claim 2, characterized in that: the form and position tolerance of the internal thread and the inner hole of the positioning sleeve (2) is determined by the repair tolerance index of the conical surface sealing surface.

4. The tool for correcting the conical surface sealing surface according to claim 1, wherein: the locating sleeve (2) is connected with a snap ring of the repair workpiece (1).

5. The tool for correcting the conical surface sealing surface according to claim 1, wherein: the conical surface correcting blade (3) is sleeved in the fixed screwing clamp (4).

6. The tool for correcting the conical surface sealing surface according to claim 5, wherein: the fit clearance between the outer cylindrical surface of the conical surface correcting blade (3) and the inner hole of the positioning sleeve (2) is determined by the repair tolerance of the conical surface sealing surface, and the coaxiality between the working surface of the conical surface correcting blade (3) and the conical surface sealing surface of the repair workpiece (1) is determined by the installation coaxiality requirement of the repair workpiece (1).

7. The tool for correcting the conical surface sealing surface according to claim 1, wherein: the fixed screwing clamp (4) is in threaded connection with the positioning sleeve (2).

8. The conical surface sealing surface correction tool according to any one of claims 1 to 7, characterized in that: the conical surface sealing surface correction tool is provided with an adjusting gasket (5) which is additionally arranged between the repair workpiece (1) and the locating sleeve (2).

Technical Field

The invention belongs to the field of machine manufacturing, and particularly relates to a conical surface sealing surface correction tool.

Background

The sealing surface of the connection between the mechanical finished accessory of the airplane and the flared guide pipe adopts a conical surface, and the test of the finished accessory also needs to be carried out by connecting the conical surface with a process test tool. For a part of finished accessories which need to bear high pressure, the sealing surface needs to be tightly attached, and if the conical surface is damaged by collision, scratch, extrusion deformation and the like, the sealing surface cannot be sealed, so that the performance of the finished accessories is influenced.

For the damaged sealing conical surface, how to repair the sealing conical surface under the condition of not disassembling and disassembling the assembly has certain difficulty, and the main reasons are as follows: firstly, if the finished accessory belongs to the development and production of a bearing factory, a pipe nozzle can be subjected to lead sealing insurance, uncertain potential safety hazards exist in the pipe nozzle dismantling process, meanwhile, the conical surface of the pipe nozzle and threads have coaxiality requirements, if the sealing conical surface is simply repaired, the repaired sealing surface and the thread coaxiality are bound to generate deviation, and the finished accessory pipe nozzle cannot be sealed due to the deviation of the axis of the sealing surface after being connected with a guide pipe through the threads; and secondly, the conical surfaces of the nozzles are finished under the condition of one-time clamping, the mounting surfaces are more blank surfaces which are not processed, and the restoration of the reference surface is difficult to ensure by secondary clamping, so that the damaged conical surfaces are difficult to repair. Meanwhile, if the mode is adopted for repair, not only high requirements are put forward on the operation skills, but also the repair period of the workpiece is long, and the part of the repaired workpiece needs to be reassembled and tested, so that the repair period is prolonged.

Disclosure of Invention

In order to solve the defects of the prior art, namely the repair problem of the conical surface sealing surface, particularly the problems of potential safety hazard caused by the repair and the disassembly of the conical surface sealing surface, the possibility of generating deviation on the coaxiality of the conical surface sealing surface due to the reassembling after the repair and the long repair period, high requirement on the skill of a worker and the like, the invention provides a simple conical surface sealing surface correction tool, so that the damaged conical surface sealing surface can be quickly repaired under the condition of not detaching or partially detaching, and the sealing performance requirement can be met.

The conical surface sealing surface tool disclosed by the invention consists of a positioning sleeve, a conical surface correcting blade and a fixed screwing clamp. The inner thread of the positioning sleeve is in threaded connection with the outer thread of the workpiece to be repaired, and the form and position tolerance of the inner thread and the inner hole of the positioning sleeve meets the index requirement of the machining tolerance of the sealing surface; the conical surface correcting blade is sleeved in the fixed screwing clamp, and the fit clearance between the outer cylindrical surface of the conical surface correcting blade and the inner hole of the positioning sleeve meets the coaxiality requirement; the internal thread of the fixed screwing clamp is connected with the external thread of the positioning sleeve through threads. When the conical surface repairing tool is used, after the clamp is fixedly screwed and a workpiece is tightly clamped, the conical surface modifying blade applies downward and rotating torque to mill a damaged surface, so that the effect of repairing the damaged conical surface sealing surface is achieved. Aiming at the repair of the conical surface sealing surfaces of the threaded nozzles with different specifications, the conical surface correction blade with the corresponding specification can be replaced so as to meet the repair requirement.

Considering that the threads of the workpiece to be repaired are different in length, the adjusting gasket is additionally arranged between the workpiece and the positioning sleeve according to needs, so that the workpiece is tightly attached to the surface of the positioning sleeve and cannot rotate.

In the technical scheme, the conical surface sealing surface of the workpiece is installed on the correcting tool and then fixed on the clamp stand only by means of the universal clamp stand, the conical surface sealing surface is extruded by a blade made of rotary tool steel by adopting a universal wrench, the effect of repairing the conical surface sealing surface is realized, and the consistency of the sealing surface and the thread axis is ensured.

Drawings

FIG. 1 is an assembly view of the conical surface sealing surface correction tool of the present invention.

In fig. 1: 1. repairing a workpiece, 2, positioning a sleeve, 3, a conical surface correcting blade, 4, fixing a screwing clamp, 5 and adjusting a gasket.

Detailed Description

The technical solution of the present invention will be described clearly and completely by taking the repair of the conical sealing surface of an aircraft mechanical accessory connected with a flared conduit as an example in conjunction with fig. 1, and it is obvious that the described embodiment is only a specific embodiment of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

FIG. 1 is an assembly view of the conical surface sealing surface correction tool of the present invention. The correction tool is composed of a positioning sleeve 2, a conical surface correction blade 3 and a fixed screwing clamp 4, wherein the positioning sleeve 2 is in threaded connection with a repair workpiece 1, and the form and position tolerance of the internal thread and the inner hole of the positioning sleeve 2 is determined by the conical surface sealing surface repair tolerance index. The conical surface correcting blade 3 is sleeved in the fixed screwing clamp 4, the fit clearance between the outer cylindrical surface of the conical surface correcting blade 3 and the inner hole of the positioning sleeve 2 is determined by the repairing tolerance of the conical surface sealing surface, and the coaxiality of the working surface of the blade and the conical surface sealing surface of the workpiece to be repaired is determined by the requirement of the installation coaxiality of the repaired workpiece. When the repairing tool works, the repairing workpiece 1 is installed on the repairing tool and then fixed on the bench by means of the universal bench, the universal wrench is adopted, the repairing workpiece 1 is tightly fixed by the fixed screwing clamp 4, the conical surface repairing blade 3 applies downward and rotating torque to mill the damaged surface, and the effect of repairing the conical surface sealing surface is achieved.

If the thread length of the workpiece 1 to be repaired is different, the adjusting shim 5 is additionally arranged between the repaired workpiece 1 and the positioning sleeve 2, so that the repaired workpiece 1 is tightly attached to the positioning sleeve 2 and does not rotate.

In order to meet the requirements of different conical surface angles of the repaired workpiece 1, the conical surface angle can be realized by replacing the conical surface correcting blade 3.