CN219151630U

CN219151630U - Arc punching assembly

Info

Publication number: CN219151630U
Application number: CN202223392486.7U
Authority: CN
Inventors: 谈昆伦; 郑友; 王劲豪; 陈云; 张银聚
Original assignee: Changzhou Xinchuang Aviation Technology Co ltd
Current assignee: Changzhou Xinchuang Aviation Technology Co ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-06-09
Anticipated expiration: 2032-12-16

Abstract

The utility model relates to the technical field of aeroengine acoustic liner manufacturing, in particular to an arc-shaped plate punching assembly, wherein a plurality of drill bodies are arranged on a mounting seat in parallel and are connected with the drill bodies in a rotating mode, the drill bodies are linked through a transmission assembly, and the mounting seat is connected with a support in a sliding mode. The power device is arranged to synchronously drive the drill bodies on the mounting seat to rotate, and the hole making operation of the silencing micropores on the arc plate is realized by matching with the displacement of the mounting seat; the adjusting bracket position enables the mounting seat to be arranged along the width direction of the arc plate, synchronous hole making operation of a plurality of silencing micropores on the width direction of the plate surface at the same circumference position of the arc plate is realized, the distance between two adjacent drills on the mounting seat is adjusted reasonably according to the design distance of the silencing micropores on the arc plate, the distance between the two drills is preferably an integral multiple of the distance between the micropores, the hole making time of the punching assembly in the width direction of the arc plate in hole making at the same circumference position of the arc plate is reduced, and the hole making efficiency is effectively improved.

Description

Arc punching assembly

Technical Field

The utility model relates to the technical field of aeroengine acoustic liner manufacturing, in particular to an arc-shaped plate punching assembly.

Background

The large-duct-ratio turbofan engine utilizes the Helmholtz resonance (Helmholtz resonance) principle to treat the acoustic liner as a plurality of regularly arranged Helmholtz resonance cavities by laying acoustic liners on the inner wall surfaces of a nacelle, a fan casing and an outer duct, and pressure fluctuation at the cavity mouth excited by sound waves causes the pressure fluctuation accompanied with the sound disturbance to be formed on the surface and the inside of the whole acoustic liner, so that the sound energy can be converted into energy to be consumed.

The sound liner comprises a perforated plate, a honeycomb hole structure and a back fixed wall, wherein the perforated plate is generally an arc plate made of composite materials, a plurality of silencing micropores are formed in the perforated plate, a drill bit is required to be driven to move along the width direction and the circumference direction of a plate body at present, holes are firstly formed in the width direction of any circumferential position of the plate body in a moving mode, then the holes are formed in the next circumferential position, and the hole forming efficiency is low.

Disclosure of Invention

The utility model aims to provide an arc-shaped plate punching assembly aiming at the defects in the prior art.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: an arcuate panel punch assembly comprising: the drill body is arranged on the mounting seat in parallel and is connected with the mounting seat in a rotating way, the drill bodies are linked through the transmission assembly, and the mounting seat is connected with the bracket in a sliding way;

the transmission assembly comprises a synchronizing wheel, a synchronizing belt and a rotating shaft, wherein the synchronizing wheel and the drill body are correspondingly arranged and coaxially rotate, the synchronizing belt is sleeved on two adjacent synchronizing wheels, the two adjacent synchronizing belts are arranged in a staggered mode, and the rotating shaft and any drill body coaxially rotate and are connected with the power device.

Further, a drill bit is arranged at one end of the drill body, and the synchronous wheel is sleeved at one end of the drill body far away from the drill bit.

Further, a first ring groove and a second ring groove are formed in the outer side of the synchronizing wheel along the circumferential direction of the synchronizing wheel, the first ring groove and the second ring groove are arranged in parallel along the axial direction of the synchronizing wheel, and two adjacent synchronizing belts positioned at the same synchronizing wheel are respectively sleeved on the first ring groove and the second ring groove.

Further, the mount pad includes front seat and back lid offer a plurality of mounting holes along its length direction on the front seat, the drill body sets up in the mounting hole, drive assembly is located in the back lid, the pivot stretches out the back lid.

Furthermore, bearings are arranged at two ends of the mounting hole and sleeved at the middle position of the drill body, and the drill body is rotatably connected with the mounting hole through the bearings.

Further, a limiting part is arranged on the drill body along the axial direction of the drill body, the limiting part protrudes out of the surface of the drill body, and the two bearings are respectively abutted to two ends of the limiting part.

Further, the support comprises two support plates which are oppositely arranged, a guide rail is arranged on the support plates, and the guide rail and the drill body are arranged in the same direction;

and the two ends of the mounting seat in the length direction are provided with sliding blocks which are in sliding connection with the guide rails.

Further, a mounting groove is formed in the support plate, the mounting groove is formed in the length direction of the guide rail, and the guide rail is arranged in the mounting groove.

Further, a through hole is formed in one side, far away from the front seat, of the rear cover, a connecting plate is arranged, the rotating shaft penetrates through the through hole, and the connecting plate is arranged below the through hole.

The beneficial effects of the utility model are as follows:

in the application, a plurality of drill bodies on the mounting seat can be synchronously driven to rotate by arranging one power device, and the hole making operation of a plurality of silencing micropores on the arc plate is realized by matching with the displacement of the mounting seat; in the preparation process of the hole, the position of the bracket is adjusted to enable the mounting seat to be arranged along the width direction of the arc-shaped plate, the drill body is driven to rotate through the power device, and simultaneously, the bracket is matched with the movement of the arc-shaped plate to finish the synchronous hole making operation of a plurality of silencing micropores on the width direction of the plate surface at the same circumference position of the arc-shaped plate.

The space between two adjacent drill bits on the mounting seat is reasonably adjusted according to the design space of the silencing micropores on the arc-shaped plate, the space between the two drill bits is preferably an integral multiple of the space between the micropores, the hole making time of the punching assembly in the width direction of the punching assembly when the punching assembly is used for making holes at the same circumferential position of the arc-shaped plate is reduced, and the hole making efficiency is effectively improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.

FIG. 1 is a schematic view of an arc plate perforating assembly of the present utility model;

FIG. 2 is an exploded view of the punch assembly of the present utility model;

FIG. 3 is an exploded view of the punch assembly of the present utility model;

FIG. 4 is a schematic diagram of a transmission assembly according to the present utility model;

FIG. 5 is a schematic view of a connection structure of a drill body according to the present utility model;

fig. 6 is a schematic diagram of the explosive structure of fig. 5.

Reference numerals: 1. a bracket; 11. a support plate; 111. a mounting groove; 12. a guide rail; 2. a mounting base; 21. a front seat; 211. a mounting hole; 212. a bearing; 22. a rear cover; 221. a through hole; 222. a connecting plate; 23. a slide block; 3. a drill body; 31. a drill bit; 32. a limit part; 4. a transmission assembly; 41. a synchronizing wheel; 411. a first ring groove; 412. a second ring groove; 42. a synchronous belt; 43. a rotating shaft.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The arc-shaped plate punching assembly comprises a bracket 1, a mounting seat 2, a drill body 3 and a transmission assembly 4, wherein a plurality of drill bodies 3 are arranged on the mounting seat 2 in parallel and are connected with each other in a rotating way, the drill bodies 3 are linked through the transmission assembly 4, and the mounting seat 2 is connected with the bracket 1 in a sliding way; the transmission assembly 4 comprises a synchronizing wheel 41, a synchronizing belt 42 and a rotating shaft 43, wherein the synchronizing wheel 41 and the drill body 3 are correspondingly arranged and coaxially rotate, the synchronizing belt 42 is sleeved on two adjacent synchronizing wheels 41, the two adjacent synchronizing belts 42 are arranged in a staggered mode, and the rotating shaft 43 and any drill body 3 coaxially rotate and are connected with a power device. The drill bit 31 is arranged at one end of the drill body 3, and the synchronizing wheel 41 is sleeved at one end of the drill body 3 far away from the drill bit 31.

In the application, a power device is arranged to synchronously drive a plurality of drill bodies 3 on the mounting seat 2 to rotate, and the hole making operation of a plurality of silencing micropores on the arc plate is realized by matching with the displacement of the mounting seat 2; in the preparation process of the hole, the position of the bracket 1 is adjusted to enable the mounting seat 2 to be arranged along the width direction of the arc-shaped plate, the drill body 3 is driven to rotate through the power device, and simultaneously, the bracket 1 is matched with the movement of the arc-shaped plate, so that the synchronous hole making operation of a plurality of silencing micropores on the width direction of the plate surface at the same circumference position of the arc-shaped plate is completed.

Further, in the implementation process, the distance between two adjacent drill bits 31 on the mounting seat 2 is reasonably adjusted according to the design distance of the silencing micropores on the arc plate, and the distance between the two drill bits 31 is preferably an integral multiple of the distance between the micropores, so that the hole making time of the punching assembly in the width direction of the punching assembly when the punching assembly is used for making holes at the same circumferential position of the arc plate is reduced, and the hole making efficiency is effectively improved.

Each drill body 3 is sleeved with a synchronizing wheel 41, all drill bodies 3 on the same mounting seat 2 are linked to rotate through a synchronizing belt 42, a first annular groove 411 and a second annular groove 412 are arranged on the outer side of the synchronizing wheel 41 along the circumferential direction of the synchronizing wheel, the first annular groove 411 and the second annular groove 412 are axially arranged in parallel along the synchronizing wheel 41, and two adjacent synchronizing belts 42 positioned at the same synchronizing wheel 41 are respectively sleeved on the first annular groove 411 and the second annular groove 412.

The synchronous wheels 41 arranged on the drill body 3 are required to be connected with the synchronous wheels 41 on the drill body 3 at two sides through the synchronous belts 42, so that transmission of rotation is realized, the two synchronous belts 42 connected with the synchronous wheels 41 at two sides are sleeved on the same synchronous wheel 41, and in order to avoid mutual interference between the two synchronous belts 42, two annular grooves are arranged on the surface of the synchronous wheel 41 and are respectively used for sleeving the two synchronous belts 42, and a certain limiting effect is achieved on the synchronous belts 42 while transmission between the synchronous belts 42 and the synchronous wheels 41 is not influenced.

The drill body 3 and the transmission assembly 4 are both arranged on the mounting seat 2, as shown in fig. 3, the mounting seat 2 comprises a front seat 21 and a rear cover 22, a plurality of mounting holes 211 are formed in the front seat 21 along the length direction of the front seat, the drill body 3 is arranged in the mounting holes 211, the transmission assembly 4 is positioned in the rear cover 22, and the rotating shaft 43 extends out of the rear cover 22.

The rear cover 22 is internally provided with a cavity along the length direction thereof, the rear half section of the drill body 3 and the transmission assembly 4 can be contained, the rear cover 22 can play a certain protection effect on the transmission assembly 4, and the rotating shaft 43 extends out of the rear cover 22 to be connected with a power device.

In the structure for mounting the drill body 3 and the mounting base 2, as shown in fig. 2 and 3, bearings 212 are provided at both ends of the mounting hole 211 and are fitted in the middle position of the drill body 3, and the drill body 3 is rotatably connected to the mounting hole 211 through the bearings 212.

The drill body 3 is provided with a limiting part 32 along the axial direction thereof, the limiting part 32 protrudes out of the surface of the drill body 3, and two bearings 212 are respectively abutted with two ends of the limiting part 32.

The front end of the mounting hole 211, i.e., the end far from the rear cover 22, is provided with a snap ring, and during the processing of the mounting hole 211, drilling is started from the rear end thereof so as to form a snap ring structure at the front end thereof. The two bearings 212 are respectively abutted with the snap ring and the synchronizing wheel 41 while being abutted with the two ends of the limiting part 32, so that the stability of the drill bit 31 is ensured while the stable installation of the bearings 212 is realized.

As shown in fig. 1 to 3, the bracket 1 comprises two opposite supporting plates 11, a guide rail 12 is arranged on the supporting plates 11, and the guide rail 12 and the drill body 3 are arranged in the same direction; the two ends of the mounting seat 2 in the length direction are provided with sliding blocks 23, and the sliding blocks 23 are in sliding connection with the guide rail 12. The support plate 11 is provided with a mounting groove 111, the mounting groove 111 is provided along the longitudinal direction of the rail 12, and the rail 12 is provided in the mounting groove 111.

The mounting groove 111 plays a certain limiting role on the guide rail 12, and the stroke interval of the mounting seat 2 slidably connected with the guide rail 12 can be adjusted by adjusting the fixing position of the guide rail 12 in the mounting groove 111. The support plates 11 are arranged on the two sides of the mounting seat 2, so that the sliding connection between the mounting seat 2 and the bracket 1 is more stable.

In this application, a through hole 221 is provided at a side of the rear cover 22 away from the front seat 21, and a connection plate 222 is provided, the rotation shaft 43 passes through the through hole 221, and the connection plate 222 is disposed below the through hole 221. The mounting seat 2 is driven to move by being connected with the connecting plate 222 through an air cylinder arranged on the bracket 1; the arrangement of the connection plate 222 can also be used to mount a power device, which can be arranged as a motor, by means of which the shaft 43 is driven to power the transmission assembly 4.

It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An arcuate panel punch assembly, comprising: the drilling machine comprises a bracket (1), a mounting seat (2), a drilling body (3) and a transmission assembly (4), wherein a plurality of drilling bodies (3) are arranged on the mounting seat (2) in parallel and are connected with the mounting seat in a rotating mode, the plurality of drilling bodies (3) are linked through the transmission assembly (4), and the mounting seat (2) is connected with the bracket (1) in a sliding mode;

the transmission assembly (4) comprises a synchronizing wheel (41), a synchronous belt (42) and a rotating shaft (43), wherein the synchronizing wheel (41) and the drill body (3) are correspondingly arranged and coaxially rotate, the synchronous belt (42) is sleeved on two adjacent synchronizing wheels (41), the two adjacent synchronous belts (42) are arranged in a staggered mode, and the rotating shaft (43) and any one of the drill body (3) coaxially rotate and are connected with a power device.

2. Arc punching assembly according to claim 1, characterized in that a drill bit (31) is arranged at one end of the drill body (3), and the synchronizing wheel (41) is sleeved at one end of the drill body (3) far away from the drill bit (31).

3. The arc plate punching assembly according to claim 2, characterized in that a first annular groove (411) and a second annular groove (412) are arranged on the outer side of the synchronizing wheel (41) along the circumferential direction of the synchronizing wheel, the first annular groove (411) and the second annular groove (412) are arranged in parallel along the axial direction of the synchronizing wheel (41), and two adjacent synchronous belts (42) positioned at the same synchronizing wheel (41) are respectively sleeved on the first annular groove (411) and the second annular groove (412).

4. The arc punching assembly according to claim 1, characterized in that the mounting base (2) comprises a front base (21) and a rear cover (22), a plurality of mounting holes (211) are formed in the front base (21) along the length direction of the mounting holes (211), the drill body (3) is arranged in the mounting holes (211), the transmission assembly (4) is arranged in the rear cover (22), and the rotating shaft (43) extends out of the rear cover (22).

5. The arc plate punching assembly according to claim 4, characterized in that bearings (212) are arranged at two ends of the mounting hole (211) and sleeved at the middle position of the drill body (3), and the drill body (3) is rotatably connected with the mounting hole (211) through the bearings (212).

6. The arc punching assembly according to claim 5, characterized in that a limiting part (32) is arranged on the drill body (3) along the axial direction of the drill body, the limiting part (32) protrudes out of the surface of the drill body (3), and two bearings (212) are respectively abutted against two ends of the limiting part (32).

7. Arc punching assembly according to claim 1, characterized in that the bracket (1) comprises two opposite supporting plates (11), a guide rail (12) is arranged on the supporting plates (11), and the guide rail (12) and the drill body (3) are arranged in the same direction;

the two ends of the mounting seat (2) in the length direction are provided with sliding blocks (23), and the sliding blocks (23) are in sliding connection with the guide rail (12).

8. The arc plate punching assembly according to claim 7, characterized in that a mounting groove (111) is provided on the support plate (11), the mounting groove (111) is provided along the length direction of the guide rail (12), and the guide rail (12) is provided in the mounting groove (111).

9. The arc punching assembly according to claim 4, characterized in that a through hole (221) is provided on a side of the rear cover (22) away from the front seat (21), and a connection plate (222) is provided, the rotation shaft (43) passes through the through hole (221), and the connection plate (222) is provided below the through hole (221).