CN109454520B

CN109454520B - Rotary fixing device for polishing annular part

Info

Publication number: CN109454520B
Application number: CN201811354982.9A
Authority: CN
Inventors: 任润娥; 常瑛; 关长军; 杨森; 车畅; 余影锋; 王天; 李康
Original assignee: AECC Aviation Power Co Ltd
Current assignee: AECC Aviation Power Co Ltd
Priority date: 2018-11-14
Filing date: 2018-11-14
Publication date: 2020-12-11
Anticipated expiration: 2038-11-14
Also published as: CN109454520A

Abstract

The invention discloses a rotary fixing device for polishing an annular part, which comprises a flat plate for placing the annular part to be polished; the flat plate is provided with two rollers and a star-shaped handle which form a triangular structure; an annular part to be polished is placed between the two rollers and the star-shaped handle, and the annular part can rotate; a bracket for fixing the flat plate is connected below the flat plate; and a liftable base is connected below the support. The problem of the potential safety hazard that annular part needs artifical rotatory part and leads to when carrying out coping processing in the aviation field is solved.

Description

Rotary fixing device for polishing annular part

Technical Field

The invention belongs to the technical field of grinding of annular parts in the field of aviation; relates to a rotary fixing device for polishing annular parts.

Background

At present, annular parts in the field of aviation are various in types, such as machined texture cutter jointing, welding beading, metal splashing cleaning and the like, and are manually ground by operators, so that the parts are different in size, different in weight, long in grinding and abrasion, large in difficulty, low in efficiency and high in safety risk.

The traditional grinding and placing mode is that a worker grinds in the circumferential direction, places a part at a fixed position in an inclined inverted mode, and needs to manually take up and rotate the part if the grinding position needs to be adjusted. Due to the self weight of the parts and the individual difference of operators, the polishing process has stronger selectivity to a master worker.

The existing grinding process has no part fixing device, and has great potential safety hazard in work. The traditional placing mode has the defects of high working strength, low worker applicability, poor safety and low production efficiency, and can not meet the grinding requirement of annular parts.

Disclosure of Invention

The invention provides a rotary fixing device for polishing an annular part, and solves the problem of potential safety hazard caused by manual rotation of the annular part during polishing processing in the field of aviation.

The technical scheme of the invention is as follows: a rotary fixing device for polishing annular parts comprises a flat plate for placing the annular parts to be polished; the flat plate is provided with two rollers and a fixing piece which form a triangular structure; an annular part to be polished is placed between the two rollers and the fixing piece, and the annular part can rotate; a bracket for fixing the flat plate is connected below the flat plate; and a liftable base is connected below the support.

According to the invention, technical innovation is carried out on the traditional placing mode of polishing according to the work and daily life experience, the placing mode suitable for polishing the annular parts is found, and the special rotary polishing platform for the annular parts is designed. A pressure plate is adopted to fix the annular part to be polished, and a planetary handle is adopted to limit and fix, so that the potential safety hazard in the polishing process is eliminated; the rotation of the annular part is realized by adopting a roller structure, and convenience is provided for an operator to flexibly adjust the polishing position of the annular part. The device reduces the labor intensity of pliers repair workers and improves the pliers repair efficiency of parts.

The roller comprises a rotating shaft, and a bearing is sleeved outside the rotating shaft.

Preferably, the rotation of the workpiece to be polished is realized through the rotation of the bearing on the rotating shaft.

The flat plate is provided with a T-shaped groove quick-release bolt, and a fixing piece is arranged on the T-shaped groove quick-release bolt; the fixing piece comprises a pressing plate sleeved on the T-shaped groove quick-release bolt, and a star-shaped handle is arranged on the pressing plate.

Preferably, the clamp plate is used for pressing down and fixing the annular part, and the fixing piece is used for limiting the annular part.

Wherein the flat plate is an inclined plane which is arranged obliquely.

Preferably, the flat plate is arranged to be an inclined plane, so that the grinding operation can be conveniently carried out by an operator, the operator can bow as little as possible, and the labor intensity of the operator is reduced.

The base comprises a plurality of upright columns, and each upright column comprises a first sleeve and a second sleeve; wherein the first sleeve is inserted into the second sleeve; a plurality of adjusting jacks are distributed on the first sleeve and the second sleeve; the adjustment sockets on the first and second sleeves are aligned and the stop pin is inserted into the adjustment socket.

Preferably, the base is telescopic through the stand column, the height of a flat plate is convenient to adjust, and the grinding operation of workers is convenient.

Wherein the base is provided with a fixed flat plate, the fixed flat plate is used for fixing the bracket and the flat plate, and the lower part of the fixed flat plate is connected with the upright post; a screw rod is connected below the fixed flat plate, and a limiting block is arranged at one end of the screw rod, which is connected with the fixed flat plate; the other end of the screw rod is connected with a hand wheel.

And connecting rods used for fixing the stand columns are connected among the plurality of stand columns, and the other ends of the lead screws penetrate through the connecting rods to be connected with hand wheels.

Preferably, the upright post is connected by a screw rod, and the distance between the screw rod and the fixed flat plate is adjusted by rotating the hand wheel to drive the screw rod, so that the height of the upright post is accurately adjusted.

Wherein the connecting rod is connected with the outer wall of the second sleeve.

Wherein the second sleeve is provided with a fixing bolt.

Wherein the first sleeve is fixed below the fixed flat plate through a cylindrical pin.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view taken at A-A of FIG. 1 in accordance with the present invention;

FIG. 3 is a usage diagram of an embodiment of the present invention.

In the figure: 1 is a pressing plate; 2 is a flat plate; 3 is a bracket; 4 is a first sleeve; 5 is a base; 6 is a stop pin; 7 is a screw nut; 8 is a lead screw; 9 is a limiting block; 10 is a second sleeve; 11 is a cylindrical pin; 12 is a hand wheel; 13 is a star-shaped handle; 14 is a hexagonal thin nut; 15 is a socket head cap screw; 16 is a T-shaped groove quick-release bolt; 17 is a socket head cap screw; 18 is a cotter pin; 19 is a flat bond; 20 is a roller; 21 is an annular part.

Detailed Description

The technical solution of the present invention is further explained with reference to the accompanying drawings and specific embodiments.

The invention provides a rotary fixing device for grinding an annular part, which comprises a flat plate 2 as shown in figures 1 and 2, wherein a fixing mechanism for fixing the annular part to be ground is arranged on the flat plate 2; the fixing mechanism includes two rollers 21 and a fixing member.

Optionally, the two rollers 21 and the fixing piece form a triangular structure, and the annular part to be polished is placed inside the triangular structure; and two rollers 21 are provided at the lower portion of the flat plate 2, and the star handle 13 is provided at the upper portion of the flat plate 2.

Optionally, the roller 21 includes a rotating shaft, and a bearing is sleeved outside the rotating shaft.

Optionally, the fixture is a star handle 13. Specifically, a T-shaped groove quick-release bolt 16 is arranged on the flat plate 2, and a pressure plate 1 and a star-shaped handle 13 are sequentially sleeved on the T-shaped groove quick-release bolt 16; wherein the ring-shaped part with the coping is arranged below the pressure plate 1.

As shown in fig. 2, the flat plate 2 is disposed as an inclined plane, and the flat plate 2 is fixed on the support 3, and the support 3 is disposed under the flat plate 2 for supporting the flat plate 2 to be inclined.

The below of support 3 is provided with telescopic base 5, and the upper portion of base 5 sets up to fixed dull and stereotyped, and support 3 sets up on fixed dull and stereotyped, and fixed dull and stereotyped below is connected with a plurality of telescopic stand, and the stand is 4.

Optionally, a cylindrical pin 11 is arranged at a joint of the upright column and the fixed flat plate, and the cylindrical pin 11 is used for connecting the fixed flat plate and the upright column.

Optionally, the upright comprises a first sleeve 4 and a second sleeve 10; the first sleeve 4 is arranged above and connected with the fixed flat plate, the second sleeve 10 is sleeved outside the first sleeve 4, and the second sleeve 10 is arranged below the first sleeve 4; the first sleeve 4 and the second sleeve 10 are respectively provided with a plurality of relative adjusting jacks; a stop pin 6 is inserted in the adjusting insertion hole.

Optionally, a supporting rod is connected between the pillars and fixed on the outer wall of the second sleeve 10.

Optionally, a screw 8 is connected below the fixed flat plate, a limiting block 9 is arranged at the joint of the screw 8 and the fixed flat plate, the limiting block 9 is sleeved outside the screw 8, and the limiting block 9 is connected with the screw 8 and the fixed flat plate.

Optionally, the other end of the screw 8 passes through the support rod and is connected with the hand wheel 12.

The hand wheel 12 is rotated to adjust the position of the support rod on the screw rod 8, so as to drive the second sleeve 10 of the upright post to be sleeved on the first sleeve 4 upwards or downwards.

Optionally, the limiting block 9 is provided with an inner hexagon screw 17, and the inner hexagon screw 17 is used for connecting the limiting block and the screw 8.

Optionally, the hand wheel 12 is fixed on the screw 8 through a thin hexagon socket nut 14 and a flat key 19.

The using method of the invention is as follows: the hand wheel 12 is rotated to adjust the height of the supporting rod on the screw rod 8, the supporting rod is fixedly connected with the second sleeve 10, so that the height of the second sleeve 10 on the first sleeve 4 is adjusted, and then the stop pin 6 is inserted into the adjusting insertion hole formed by overlapping the first sleeve 4 and the second sleeve 10; as shown in fig. 3, the ring part 21 to be ground is then placed on the flat plate 2 with the outer periphery of the ring part 21 inscribed in the triangular area between the two rollers 20 and the fixture, and then the pressure plate 1 is pressed against the surface of the ring part 21 and tightened on the T-slot quick release nut 16 using the star handle 13.

At this time, the annular part 21 can rotate on the two rollers 20, and in the grinding process, an operator can manually rotate the annular part 21 to adjust the grinding position of the annular part and then manually grind the annular part.

Claims

1. A rotary fixing device for grinding annular parts is characterized by comprising

The flat plate (2) is used for placing the annular part to be polished, and the flat plate (2) is an inclined plane which is obliquely arranged; the flat plate (2) is provided with two idler wheels (21) and a fixing piece which form a triangular structure, each idler wheel comprises a rotating shaft, a bearing is sleeved outside each rotating shaft, a T-shaped groove quick-release bolt (16) is arranged on the flat plate (2), the fixing piece is arranged on each T-shaped groove quick-release bolt (16), each fixing piece comprises a pressing plate (1) sleeved on each T-shaped groove quick-release bolt (16), and a star-shaped handle (13) is arranged on each pressing plate (1);

an annular part to be polished is placed between the two rollers (20) and the fixing piece, and the annular part can rotate;

a bracket (3) for fixing the flat plate (2) is connected below the flat plate (2);

a liftable base (5) is connected below the support (3), the base (5) comprises a plurality of upright columns, each upright column comprises a first sleeve (4) and a second sleeve (10), and the first sleeves (4) are fixed below the fixed flat plate through cylindrical pins (11); wherein the first sleeve (4) is inserted into the second sleeve (10); a plurality of adjusting jacks are distributed on the first sleeve (4) and the second sleeve (10), the adjusting jacks on the first sleeve (4) and the second sleeve (10) are aligned, and the stop pin (6) is inserted into the adjusting jacks;

a fixed flat plate is arranged on the base (5), a fixed support (3) and a flat plate (2) are arranged on the fixed flat plate, stand columns are connected below the fixed flat plate, connecting rods for fixing the stand columns are connected among the stand columns, the connecting rods are connected to the outer wall of the second sleeve (10), a lead screw (8) is connected below the fixed flat plate, and a limiting block (9) is arranged at one end, connected with the fixed flat plate, of the lead screw (8); the other end of the screw rod (8) passes through the connecting rod and is connected with a hand wheel (12).