CN210701750U

CN210701750U - Device for safely taking out core rod blocked during cold extrusion

Info

Publication number: CN210701750U
Application number: CN201920719906.7U
Authority: CN
Inventors: 梁晓宇; 杜瑞
Original assignee: AVIC Shaanxi Aircraft Industry Group Corp Ltd
Current assignee: Shaanxi Aircraft Industry Co Ltd
Priority date: 2019-05-17
Filing date: 2019-05-17
Publication date: 2020-06-09
Anticipated expiration: 2029-05-17

Abstract

The embodiment of the utility model provides a mandrel remove device. The device includes: the device comprises a square frame bracket, a jack jacking piece, a front joint clamp, a rear joint clamp and a group of fastening components; the workpiece is clamped between a front joint clamp and a rear joint clamp by a fastening assembly, and both the front joint clamp and the rear joint clamp are provided with openings; the fastening component transversely penetrates through one supporting arm of the square frame bracket and is fixed on the supporting arm; the supporting arm is also provided with a guide pipe which transversely penetrates through the supporting frame; the ejector rod of the jack jacking piece penetrates into the guide tube, the lug piece of the workpiece, the guide tube and the opening are coaxial, and the core rod of the workpiece extends out of the opening of the rear joint clamp; and the mandril ejects the core rod out of the workpiece along the direction of the guide pipe and the hole.

Description

Device for safely taking out core rod blocked during cold extrusion

Technical Field

The utility model belongs to the technical field of the aviation, a device of plug of jamming when safe taking out because of cold extrusion is related to.

Background

In order to guarantee the assembly precision of the airplane and prolong the fatigue life of the airplane structure of a key part, in the coordinated assembly process of the airplane tail wing at the present stage, cold extrusion processing is carried out on the surface of the airplane body after a machining part assembling machine is adopted. And in the cold extrusion processing process, the condition that the core rod is blocked or even broken in the processing hole can be caused by the influences of the complex structure of the processing hole, the narrow operation space, the processing precision of the initial hole, insufficient pressure supply of power equipment, pipeline loss, quality problems of the lining and the like. At the present stage, the rod taking measures are mainly two types: manually taking the rod and taking the rod by equipment. The manual rod taking method adopts an air hammer to beat, mainly depends on the proficiency of hands of workers, is easy to miss shell skins of a machine body in the rod taking process, and simultaneously, uncertainty of beating positions easily causes secondary scratching of hole walls, and is high in operation difficulty; the rod taking device is lack of necessary limiting devices and guiding devices, so that the rod taking is difficult and too long.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes personnel among the prior art, organism risk hidden danger are big, and shortcoming such as processing position secondary receives the damage and consuming time overlength provides one kind when taking place the plug jamming, fracture, can be safe, quick, the low frock device of taking out the plug that harms.

In a first aspect, a mandrel removing apparatus is provided, including: the device comprises a square frame bracket, a jack jacking piece, a front joint clamp, a rear joint clamp and a group of fastening components;

the workpiece is clamped between a front joint clamp and a rear joint clamp by a fastening assembly, and both the front joint clamp and the rear joint clamp are provided with openings; the fastening component transversely penetrates through one supporting arm of the square frame bracket and is fixed on the supporting arm; the supporting arm is also provided with a guide pipe which transversely penetrates through the supporting frame; the ejector rod of the jack jacking piece penetrates into the guide tube, the lug piece of the workpiece, the guide tube and the opening are coaxial, and the core rod of the workpiece extends out of the opening of the rear joint clamp; and the mandril ejects the core rod out of the workpiece along the direction of the guide pipe and the hole.

Further, the fastening assembly includes: the locking device comprises a guide bolt, a stop pin, a locking washer and a hexagon nut;

the front joint clamp and the rear joint clamp are provided with guide holes; the supporting arm is provided with a limiting hole, the guide hole and the limiting hole are coaxial, the guide bolt penetrates through the limiting hole and the guide hole, the bolt head of the guide bolt is clamped on the outer side of the rear joint clamp, and the stop pin fixes the screw rod of the guide bolt on the outer side of the supporting arm; the screw thread of the screw, the anti-loosening washer and the hexagon nut are matched with each other, and the front joint clamp and the rear joint clamp are fastened.

Further, the square support comprises: two half i-assemblies secured together.

Further, the apparatus further comprises: and the two half I-shaped assemblies are fixed together through the fastener.

Furthermore, the fastener comprises a bolt and a nut which are matched with each other, a flange plate is welded on the butt joint surface of the half I-shaped assemblies, and the bolt and the nut are matched with each other to connect the flange plates of the two half I-shaped assemblies in a threaded manner.

Further, the jack member includes: the ejector rod is connected with the ejector head in a threaded manner.

Further, the lock washer is a spring washer.

Further, the square frame support is hollow.

The utility model provides a core rod taking-out device, the main body of which is a half I-shaped component with two sections and has better manufacturability, the outer surface of the half I-shaped component is anodized, and two ends are screwed by square flange plates, thus improving the structural stability of the component; the jack piece penetrates through the middle hole of the half I-shaped component 1, hollow cylinders with guiding and limiting functions are arranged at two ends of the jack piece, and a large jack socket is arranged at one side close to the jack, so that the jack head is prevented from accidentally sliding out in the stroke, and the operation safety is improved; the mandrel taking-out device has reasonable design, high stability and good interchangeability.

Drawings

The utility model comprises 1 figure.

FIG. 1 is a schematic view showing the structure of a mandrel removing apparatus.

Detailed Description

The device for safely taking out the core rod blocked due to cold extrusion provided by the utility model is described in detail with the attached drawings:

as shown in fig. 1, a device for safely taking out a mandrel jammed during cold extrusion is provided, which comprises a first half i-shaped component 1, a second half i-shaped component 2, a jack jacking piece 3, a front joint clamp 4a, a rear joint clamp 4b and a group of fastening components, wherein the fastening components comprise: the locking device comprises a guide bolt 5, a locking washer 6, a hexagon nut 7, a stop pin 8 and eight half-and-half I-shaped assembly connecting pieces, wherein each half-and-half I-shaped assembly connecting piece comprises a bolt 9 and a nut 10.

The first half I-shaped component 1 and the second half I-shaped component 2 are both hollow steel pieces, the connecting parts of the two components are square flange plates which are connected by bolts, and the outer surfaces of the two components are anodized; three holes are formed in the supporting arm of the first half I-shaped component 1, the central hole, the cold extrusion single-lug and double-lug butt joint hole are coaxial holes, guide pipes are arranged in the front and at the back of the central hole, the limiting hole of the first half I-shaped component 1, the front joint clamp 4a and the guide holes in the back joint clamp 4b are coaxial holes and are fixedly connected through a guide bolt 5, and the stop pin 8 is fixed at the supporting arm of the first half I-shaped component 1.

The jack component 3 is a solid steel component and is arranged in the guide pipe of the first half I-shaped component 1, the top with the jack socket is in threaded connection with the ejector rod, the other side of the ejector rod is a polished rod, and the outer surface of the polished rod is subjected to hard anodization treatment.

The front joint clamp 4a and the rear joint clamp 4b are solid steel pieces, guide holes on two sides and limiting holes on two sides of the first half I-shaped component 1 are coaxial holes and are connected through guide bolts 5, the anti-loosening washer 6 and the hexagon nut 7 are fixed, a middle hole and a cold extrusion single-lug and double-lug butt joint hole are coaxial holes, and the surfaces of the clamps are subjected to hard anodizing treatment.

The guide bolt 5 is in threaded connection with the front joint clamp 4a and the rear joint clamp 4b, the bolt is a polished rod at the extending section of the front joint clamp 4a, a through hole is formed in the front portion of the polished rod, and the polished rod and the first half I-shaped assembly 1 are fixed through a stop pin 8.

When the clamping device works, the first half I-shaped component 1 and the second half I-shaped component 2 are connected and fixed firstly, then the guide bolt 5 is inserted into the rear joint clamp 4b, the guide hole of the front joint clamp 4a and the limit hole of the first half I-shaped component 1 in sequence, the front joint clamp 4a and the rear joint clamp 4b are screwed and fastened with the butt joint holes of the single lug and the double lug of the machine body, the guide bolt 5 penetrates through one support arm of the first half I-shaped component 1 and is fixed by the stop pin 8, finally the ejector rod of the jack jacking piece 3 is arranged in the guide pipe of the first half I-shaped component 1, and the clamping stagnation core rod is ejected out of a workpiece by using a power source.

In the actual installation process, because the space is limited, the core rod cannot be directly installed and fixed by large-scale equipment and can only be utilized according to the existing environment. The installation position of a square flange plate screw joint connector clamp of the second half I-shaped component 2 is just clamped at the upper and lower gaps of a butt joint part, the thickness of the clamp is equal to the gap amount of the butt joint part, the upper and lower vibration of the device can be reduced in the process of ejecting a core rod out of a power source, no installation hole with enough strength can be borrowed near the butt joint hole to realize the limiting and guiding functions, so that the guide holes of the front connector clamp 4a and the rear connector clamp 4b are connected with the limiting hole on the support arm of the first half I-shaped component 1 by using the guide bolt 5, and meanwhile, the guide pipe in the first half I-shaped component 1 can prevent the jack top part 3 from generating deflection in the motion process.

Claims

1. The utility model provides a device of safe extraction because of jamming plug during cold extrusion which characterized in that includes: the device comprises a square frame bracket, a jack jacking piece, a front joint clamp, a rear joint clamp and a group of fastening components;

the workpiece is clamped between a front joint clamp and a rear joint clamp by a fastening assembly, and both the front joint clamp and the rear joint clamp are provided with openings; the fastening component transversely penetrates through one supporting arm of the square frame bracket and is fixed on the supporting arm; the supporting arm is also provided with a guide pipe which transversely penetrates through the square frame support; the ejector rod of the jack jacking piece penetrates into the guide tube, the lug piece of the workpiece, the guide tube and the opening are coaxial, and the core rod of the workpiece extends out of the opening of the rear joint clamp; and the mandril ejects the core rod out of the workpiece along the direction of the guide pipe and the hole.

2. The apparatus of claim 1, wherein the fastening assembly comprises: the locking device comprises a guide bolt, a stop pin, a locking washer and a hexagon nut;

3. The apparatus of claim 1, wherein the frame support comprises: two half i-assemblies secured together.

4. The apparatus of claim 3, further comprising: and the two half I-shaped assemblies are fixed together through the fastener.

5. The apparatus of claim 4, wherein the fasteners comprise bolts and nuts that are matched with each other, flanges are welded to the abutting surfaces of the half I-shaped assemblies, and the bolts and the nuts are matched with each other to screw the flanges of the two half I-shaped assemblies.

6. The apparatus of claim 1, wherein the jack member comprises: the ejector rod is connected with the ejector head in a threaded manner.

7. The apparatus of claim 2, wherein the lock washer is a spring washer.

8. The apparatus of claim 1, wherein the square frame support is hollow.