CN217764802U

CN217764802U - Aeroengine major diameter machine casket detects and centre of a circle alignment support

Info

Publication number: CN217764802U
Application number: CN202220859729.4U
Authority: CN
Inventors: 江涛; 王思慧; 宋学东; 刘西剑; 陈永峰
Original assignee: WUXI RUNHE BLADE MANUFACTURING CO LTD; Wuxi Runhe Machinery Co ltd
Current assignee: WUXI RUNHE BLADE MANUFACTURING CO LTD; Wuxi Runhe Machinery Co ltd
Priority date: 2022-04-14
Filing date: 2022-04-14
Publication date: 2022-11-08
Anticipated expiration: 2032-04-14

Abstract

A large-diameter case detection and circle center alignment support for an aero-engine comprises a main body (10) and a small cylinder which is concentric up and down and a main body (10) which is formed by cutting out four plane large cylinders, wherein the lower end of the small cylinder is fixedly provided with the large cylinder, the small cylinder (directly or after being inserted into a tool holder and locked) is arranged on a machine tool main shaft, the side of the large cylinder is cut out into four planes, the cross sections of the four planes are rectangular, one pair of parallel planes are provided with a through hole, the other pair of parallel planes are respectively provided with a threaded hole, the bottom surface of the cylinder is also provided with two threaded holes which are arranged side by side, a horizontal long support rod penetrates through the through holes which are arranged on the pair of parallel planes on the main body (10), and a long support rod (1) is fixed on the main body through screws; the thread ends of the two push rods (11) are respectively screwed into the other pair of parallel plane thread holes on the main body; one end or two ends of the horizontal long support rod are respectively provided with a dial indicator which is fixedly connected with the double U-shaped vertical fixed joint.

Description

Support for detecting large-diameter case and aligning circle center of aircraft engine

Technical Field

The utility model relates to a special stand of concentricity, roundness detection and centre of a circle alignment of aeroengine major diameter machine casket. The support is a special support for detecting a large-diameter case of an aero-engine and aligning the circle center.

Background

The casing is an indispensable component of modern engines, and along with the development of modern aeroengine, the casing of major diameter is more and more, detects the detection of the circularity of the reference circle of casing, and the concentricity of assembly part detects, and the centre of a circle that needs alignment work piece becomes the more and more problem that will face in the actual processing in the processing.

At present, the roundness of the reference circle of the casing is mainly detected on a vertical lathe with a three-coordinate large workbench or a detection table with a rotary turntable, and the methods either need expensive equipment, or occupy large equipment with a large workbench surface, or need a special tool clamp, and have higher cost in use.

The center of a workpiece needs to be aligned in machining, a three-point or four-point centering method is generally adopted, or a dial indicator is used for aligning a gauge stand of a magnet, the center of a circle found by the methods has a position error with a real center of the circle, or the problem that a spindle of a machine tool has magnetism due to long-time use of a magnetic gauge stand is solved.

CN201921955188X provides a concentricity adjusting structure of an integral skid-mounted compressor, which comprises an L-shaped supporting piece and an auxiliary measuring piece, wherein the auxiliary measuring piece is arranged on the front side of a half coupling end at the end of a blower; the L-shaped support piece is arranged between the end of the motor and the end of the blower, a first dial indicator and a second dial indicator are respectively installed at two ends of the L-shaped support piece, the first dial indicator is located between the end of the blower and the end of the motor, the center of the first dial indicator is flush with the end face of the end of the motor, and the first dial indicator is used for measuring the end face error of the half coupling at the end of the blower; the second dial indicator is located above the auxiliary measuring piece and used for measuring the radial error of the blower end half coupling. However, the roundness detection of the large-diameter case of the aero-engine is not suitable for use, so that a support for the roundness detection and the circle center alignment of the large-diameter case of the aero-engine is needed.

The utility model discloses be exactly to the practical effective solution that the above problem level required to put forward.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present invention provides a support for concentricity, roundness detection and circle center alignment of a large-diameter casing of an aircraft engine.

The technical scheme of the utility model is that, a aeroengine major diameter casket concentricity, roundness detection and centre of a circle alignment support, including the main part, from top to bottom concentric little cylinder and one surely go out main part (10) that four planar big cylinders constitute, the fixed big cylinder of small circle lower extreme, little cylinder (direct or insert the handle of a knife locking after) dress is on the lathe main shaft, four planes that big cylinder side was surely gone out, the cross section of four planes is the rectangle, be equipped with a through-hole on one pair of parallel planes among them, another is equipped with a screw hole respectively to parallel planes, the cylinder bottom surface also has two screw holes side by side, pass the through-hole that is equipped with on a pair of parallel planes on main part (10) with horizontal long support pole, fix long support pole (1) in the main part with the screw; the thread ends of the two push rods (11) are respectively screwed into the other pair of parallel plane thread holes on the main body (10); one end or two ends of the horizontal long support rod are respectively provided with a dial indicator (2) fixedly connected with a double-U-shaped vertical fixed joint, the dial indicator fixedly connected with the double-U-shaped vertical fixed joint comprises two double-U-shaped vertical fixed joints, a short support rod, two butterfly nuts, a matched screw rod and a dial indicator, the double-U-shaped vertical fixed joints comprise large holes and vertical small holes respectively formed by two U-shaped clamps, the screw rod penetrates through the end parts of the double-U-shaped clamps and is screwed and fixed by the butterfly nuts, the large hole of the first double-U-shaped vertical fixed joint (3) penetrates into one end of the long support rod (1), and one end of the short support rod (6) penetrates through the small hole; the other end of the short support rod (6) is inserted into a large hole of the second double-U-shaped vertical fixing joint (5), the meter rod of the dial indicator (2) is inserted into a small hole of the second double-U-shaped vertical fixing joint (5), and the first butterfly nut and the second butterfly nut are used for fixing the two double-U-shaped vertical fixing joints respectively.

When one end or two ends of the horizontal long support rod are respectively provided with the double-U-shaped vertical fixed joint to be connected with the fixed dial indicator (2), the inner hole of the counter weight (12) is sleeved into the other end of the long support rod (1) and is adjusted to a proper position, and the second screw (13) on the counter weight (12) is screwed.

The utility model discloses the work use of support, the upper end small circle post that passes through main part (10) with the support of assembling inserts the handle of a knife and locks, pack the handle of a knife into the lathe main shaft, the work piece that will fix a position the fixed circle is placed on the lathe workstation, machine tool spindle position has been adjusted, loosen second butterfly nut (8), adjust short strut pole (6) and lock second butterfly nut (8) after the suitable position again, loosen first butterfly nut (4), adjust dial indicator (2) contact to the suitable position (like the edge of circumference work piece) after lock first butterfly nut (4) again, manual promotion push rod (11) make the support rotate, we through dial indicator (2) just can judge out the circularity and the centre of a circle position that are detected the work piece, when will be measured to the concentricity, loosen second screw (13) on counter weight (12), take down counter weight (12) from long support pole (1), install the second set of dial indicator according to the same assembly structure in support again, the other end just can be observed the circumstances according to the same dial indicator before the change the push rod (1), the last clear method that promotes the number value that can be good.

Has the advantages that: the utility model discloses two sets of percentage tables are installed to the accessible, through the numerical value change that observes one or two sets of percentage tables just can be clear see the condition of work piece concentricity, roundness detection and centre of a circle alignment, the precision is high, adjusts convenient to use, and the percentage table is also called the amesdial, has 5 microns or higher detection precision.

Drawings

Fig. 1 is a 3D diagram of a support for concentricity, roundness detection and center alignment of a large-diameter casing of an aircraft engine.

Detailed Description

As shown in the figure, the utility model discloses a frock component mark is as follows: 1. the long support rod 2, the dial indicator 3, the first double U-shaped vertical fixing joint 4, the first butterfly nut 5, the second double U-shaped vertical fixing joint 6, the short support rod 7, the double U-shaped vertical fixing joint 8, the second butterfly nut 9, the first screw 10, the main body 11, the push rod 12, the counterweight 13 and the second screw.

As shown in the figure, the support adopts a small cylinder which is concentric up and down and a main body (10) which is formed by cutting out a large cylinder with four planes, the small cylinder is inserted into a tool holder and locked and then is arranged on a main shaft of a machine tool, the four planes cut out by the large cylinder are provided with a through hole and two threaded holes, the bottom surface is also provided with two threaded holes, a long support rod passes through the through hole on the side surface of the main body (10) and is adjusted to a proper position, and two first screws (9) are used for fixing the long support rod (1) on the main body through the two threaded holes on the bottom surface of the main body (10); the threaded ends of two push rods (11) are respectively screwed into two threaded holes in the side face of the main body (10), the large hole of the first double-U-shaped vertical fixing joint (3) penetrates into one end of the long support rod (1), the threaded end of the second butterfly nut (8) penetrates through the screw through hole of the second double-U-shaped vertical fixing joint (5), and the screw through hole penetrating into one face of the first double-U-shaped vertical fixing joint (3) is screwed into the threaded hole in the other face; inserting the cylindrical end of the short support rod (6) into the large hole of the second double-U-shaped vertical fixed joint (5), adjusting to a proper position, and locking a second butterfly nut (8); after the threaded end of the first butterfly nut (4) penetrates through a screw through hole of the second double-U-shaped vertical fixing joint (5), the threaded end is screwed into a threaded hole of a plane of the short support rod (6), one surface of the second double-U-shaped vertical fixing joint (5) is made to be flush with the plane of the short support rod (6), the dial indicator (2) is inserted into a small through hole of the second double-U-shaped vertical fixing joint (5), the position is adjusted to a proper position, and the first butterfly nut (4) is screwed; and sleeving the inner hole of the counterweight (12) into the other end of the long support rod (1), adjusting to a proper position, and screwing a second screw (13) on the counterweight (12).

The assembling process of the bracket comprises the following steps: the long support rod (1) penetrates through a through hole of a large cylindrical outer cutting plane of the main body (10) and is adjusted to a proper position, and the long support rod (1) is fixed on the main body through two threaded holes in the bottom surface of the main body (10) by two first screws (9); the threaded ends of two push rods (11) are respectively screwed into two threaded holes in the side face of the main body (10), the large hole of the first double-U-shaped vertical fixing joint (3) penetrates into one end of the long support rod (1), the threaded end of the second butterfly nut (8) penetrates through the screw through hole of the second double-U-shaped vertical fixing joint (5), and the screw through hole penetrating into one face of the first double-U-shaped vertical fixing joint (3) is screwed into the threaded hole in the other face; inserting the cylindrical end of the short support rod (6) into the large hole of the second double-U-shaped vertical fixed joint (5), adjusting to a proper position, and locking a second butterfly nut (8); after the threaded end of the first butterfly nut (4) penetrates through a screw through hole of the second double-U-shaped vertical fixing joint (5), the threaded end is screwed into a threaded hole of a plane of the short support rod (6), one surface of the second double-U-shaped vertical fixing joint (5) is made to be flush with the plane of the short support rod (6), the dial indicator (2) is inserted into the through hole of the second double-U-shaped vertical fixing joint (5), the position is adjusted to be a proper position, and the first butterfly nut (4) is screwed; and sleeving the inner hole of the counterweight (12) into the other end of the long support rod (1), adjusting to a proper position, and screwing a second screw (13) on the counterweight (12).

Claims

1. A support for detecting a large-diameter case of an aircraft engine and centering the center of a circle is characterized by comprising a main body, a small cylinder and a main body (10), wherein the small cylinder is concentric up and down, the main body is formed by cutting out four large cylinders on four planes, the lower end of the small cylinder is fixedly provided with the large cylinder, the small cylinder is arranged on a machine tool main shaft, the four planes cut out from the large cylinder side are rectangular in cross section, one pair of parallel planes are provided with a through hole, the other pair of parallel planes are respectively provided with a threaded hole, the bottom surfaces of the cylinders are also provided with two threaded holes side by side, a horizontal long support rod penetrates through the through holes formed in the pair of parallel planes on the main body (10), and a long support rod (1) is fixed on the main body by screws; the thread ends of the two push rods (11) are respectively screwed into the other pair of parallel plane thread holes on the main body (10); the dial indicator (2) fixed in a double-U-shaped vertical fixing joint connection mode is arranged at one end or two ends of the horizontal long support rod, the dial indicator fixed in the double-U-shaped vertical fixing joint connection mode comprises two double-U-shaped vertical fixing joints, a short support rod, two butterfly nuts, a screw rod and a dial indicator, the screw rod and the dial indicator are matched with each other, the double-U-shaped vertical fixing joints comprise large holes and vertical small holes, the two U-shaped vertical fixing joints respectively form the large holes, the screw rod penetrates through the end portions of the double-U-shaped clamps and is screwed and fixed through the butterfly nuts, the large holes of the first double-U-shaped vertical fixing joints (3) penetrate into one end of the long support rod (1), and one end of the short support rod (6) penetrates through the small holes.

2. The aero-engine large-diameter receiver detection and circle center alignment bracket as claimed in claim 1, wherein the other end of the short bracket rod (6) is inserted into a large hole of the second double-U-shaped vertical fixed joint (5), a meter rod of the dial indicator (2) is inserted into a small hole of the second double-U-shaped vertical fixed joint (5), and the two double-U-shaped vertical fixed joints are fixed by the first butterfly nut and the second butterfly nut respectively.