CN110405703B

CN110405703B - Multifunctional trolley for aerospace product assembly

Info

Publication number: CN110405703B
Application number: CN201910611782.5A
Authority: CN
Inventors: 毛旦平; 王磊; 刘驰; 孙晓凤; 张伟; 孙晓亮; 李辉
Original assignee: Shanghai Space Precision Machinery Research Institute
Current assignee: Shanghai Space Precision Machinery Research Institute
Priority date: 2019-07-08
Filing date: 2019-07-08
Publication date: 2023-02-17
Anticipated expiration: 2039-07-08
Also published as: CN110405703A

Abstract

The invention provides a multifunctional trolley for aerospace product assembly, which comprises a chassis, trundles, a lifting bracket and a redundancy checking assembly, wherein the chassis is provided with a base plate and a base plate; the trundles are arranged below the chassis, the lifting bracket is arranged above the chassis, and the surplus object inspection assembly is arranged on the lifting bracket; the redundancy checking assembly consists of an installation base, a plug fixing pin, a supporting rod and a roller; the supporting rod is fixed on the mounting base through a plug fixing pin, and the roller is connected to the top of the supporting rod; and after the product is assembled, loosening the pressure release valve to enable the product to contact the roller after descending, and rotating the product to perform redundancy inspection. The invention realizes the function of fast switching the device to fast respond to products of different models, improves the flexibility level of the equipment and improves the operation integration degree. The lifting and transferring link is eliminated by the arranged redundancy checking assembly, and the operation efficiency is improved.

Description

Multifunctional trolley for aerospace product assembly

Technical Field

The invention relates to the field of mechanical design, in particular to a multifunctional trolley for aerospace product assembly.

Background

The aerospace product assembly is an important link in the product process flow, and the main content of the aerospace product assembly is to install equipment in a cabin, carry out cabin section butt joint, carry out redundancy inspection on the butted components, and then transfer the components to a test station for testing. And after the test is qualified, butt joint of the rest cabin sections is carried out, redundant inspection, test and the like are carried out again, and the assembly of each structural part is completed.

In the development stage of products, the assembling devices of various types of products are various due to different diameters and cabin lengths of various types of products, so that the resource cost of special assembling equipment for various products is increased; and the cabin sections are generally lifted by adopting a rotary threaded rod during butt joint so as to adjust the height of the central axis of the front cabin section and the rear cabin section, repeated adjustment is needed, and the operation intensity of workers is high. After the product is assembled, the product generally needs to be hoisted and transferred to a special excess inspection device for inspection operation, so that the operation efficiency is low, and the safety risk of hoisting is increased.

In order to solve the problems and meet the development requirements of aerospace products, a multifunctional trolley for assembling aerospace products is needed. No description or report of the similar technology to the invention is found at present, and similar data at home and abroad are not collected yet.

Disclosure of Invention

The invention aims to provide a multifunctional trolley for aerospace product assembly, which aims to solve the problems that the existing assembly device needs to be adjusted repeatedly, the operation intensity of workers is high, the operation efficiency is low, and the safety risk is high.

In order to solve the technical problems, the technical scheme of the invention is as follows: the multifunctional trolley for the assembly of the aerospace products comprises a chassis, casters, a lifting bracket and a redundancy inspection assembly; the trundles are arranged below the chassis, the lifting bracket is arranged above the chassis, and the excess inspection assembly is arranged on the lifting bracket;

the lifting bracket consists of a bracket block, a quick bolt, a hydraulic jack, a pressure release valve, a lifting handle and a guide pillar and guide sleeve; the guide post and guide sleeve are arranged on two sides of the lifting bracket, the lifting handle is stirred leftwards and rightwards to carry out lifting operation of the lifting bracket, and the pressure release valve is loosened to carry out descending operation of the lifting bracket; replacing bracket blocks with different sizes by plugging and unplugging the quick plug pins;

the redundancy checking assembly consists of an installation base, a plug fixing pin, a supporting rod and a roller; the supporting rod is fixed on the mounting base through a plug fixing pin, and the roller is connected to the top of the supporting rod; and after the product is assembled, loosening the pressure release valve to enable the product to contact the roller after descending, and rotating the product to perform redundancy inspection.

Furthermore, the roller is made of non-metal materials.

Furthermore, a stool handle assembly is installed on one side of the base plate, and the stool handle assembly can be used as a stool and a handle after being rotatably stretched.

Furthermore, a slide rail is arranged above the chassis, so that the lifting bracket can slide on the slide rail.

Furthermore, the front end of the chassis is provided with a front connecting hinge, and the rear end of the chassis is provided with a rear connecting hinge matched with the front connecting hinge, so that two or more trolleys can be connected for use according to requirements.

Furthermore, after the spring fixing pin is pulled out, the stool handle can rotate freely, and after the spring fixing pin is loosened, the stool handle can be automatically fixed after being rotated to a certain angle and cannot rotate.

Furthermore, a drawer is arranged on the side face of the chassis.

Furthermore, cover plates are arranged on two sides above the chassis.

The multifunctional trolley for aerospace product assembly provided by the invention has the following beneficial effects:

1) The multifunctional trolley for aerospace product assembly provided by the invention meets the switching requirement of rapid assembly of different types of products. The bracket with different specifications is replaced or the bracket is connected through the front hinge and the rear hinge, so that the assembly of different types of aerospace products can be realized, and the flexibility level of the equipment is improved.

2) The lifting bracket provided by the invention has the advantages that the lifting precision is relatively improved compared with that of a spiral type lifting precision, the operation is relatively simple and easy, and the operation strength is reduced.

3) According to the handle assembly of the stool, an operator can use the stool to install equipment in a cabin in situ, and the stool can be folded and stored after installation is completed. Meanwhile, the drawer is arranged in the trolley, tools and instruments required by various operations can be placed, and the operation integration degree is improved.

4) The redundancy inspection component provided by the invention removes a hoisting and transferring link, can perform redundancy inspection operation on an original station, and improves the operation efficiency.

Drawings

The invention is further described with reference to the accompanying drawings:

FIG. 1 is a schematic structural diagram of a multifunctional trolley for aerospace product assembly according to the present invention;

FIG. 2 is a schematic view of a vehicle chassis in the multifunctional trolley for aerospace product assembly provided by the invention;

FIG. 3 is a schematic view of a stool handle assembly in the multifunctional trolley for aerospace product assembly according to the present invention;

fig. 4 is a schematic diagram of a redundancy checking assembly in the multifunctional trolley for aerospace product assembly provided by the invention.

1-vehicle chassis 10-drawer 19-stool handle

2-front connecting hinge 11-bracket 20-spring fixing pin

3-lifting bracket 12-quick bolt 21-seat cushion

4-redundancy inspection component 13-hydraulic jack 22-stool handle rotating shaft

5-slide rail 14-pressure release valve 23-brake handle

6-cover plate 15-lifting handle 24-mounting base

7-stool handle assembly 16-guide post guide sleeve 25-plug fixing pin

8-rear connecting hinge 17-stool hinge mounting seat 26-support rod

9-caster 18-linear slide 27-roller

Detailed Description

The multifunctional trolley for the aerospace product assembly provided by the invention is further described in detail by combining the attached drawings and specific embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise ratio for the purpose of facilitating and distinctly aiding in the description of the embodiments of the invention.

The invention provides a multifunctional trolley for aerospace product assembly, which comprises a chassis, trundles, a lifting bracket and a redundancy inspection assembly, wherein the trundles are arranged on the chassis; the trundles are arranged below the chassis, the lifting bracket is arranged above the chassis, and the surplus object inspection assembly is arranged on the lifting bracket;

the lifting bracket consists of a bracket block, a quick bolt, a hydraulic jack, a pressure release valve, a lifting handle and a guide pillar and guide sleeve; the guide post and guide sleeve are arranged on two sides of the lifting bracket, the lifting handle is toggled left and right to carry out lifting operation on the lifting bracket, and the pressure relief valve is unscrewed to carry out descending operation on the lifting bracket; replacing bracket blocks with different sizes by plugging and unplugging the quick plug pins;

Fig. 1 is a schematic diagram showing the general structure of a multifunctional trolley for aerospace product assembly according to the present invention. The trolley comprises a vehicle chassis 1, a lifting bracket 3, a surplus object inspection assembly 4, a stool handle assembly 7 and casters 9. The lifting bracket 3 is arranged above the vehicle chassis 1, the surplus object checking assembly 4 is arranged on the lifting bracket 3, and the stool handle assembly 7 is arranged behind the vehicle chassis 9. The front articulated joint 2 is mounted at the front end of the chassis and can be connected to the rear articulated joint 8 of another trolley for the assembly of longer products.

As shown in figure 1, the left side and the right side of the upper part of a vehicle chassis 1 are provided with cover plates 6, and drawers 10 are arranged inside the vehicle chassis 1 so as to be convenient for storing common tools and instruments. The upper surface of the chassis is provided with a slide rail 5, and the lifting bracket 3 can slide on the slide rail to realize the butt joint assembly of the front section and the rear section of the product.

As shown in fig. 2, a hydraulic jack 13 is integrated in the lifting bracket 3, the lifting handle 15 is shifted left and right to lift the bracket, and the relief valve 14 is loosened to lower the bracket by the gravity of the bracket itself. Guide post guide sleeves 16 are respectively arranged on two sides of the lifting bracket 3, so that the lifting of the product is more stable and reliable. The bracket blocks 11 on the lifting bracket 3 can be quickly replaced by the quick-locking plug pins 12 through plugging and pulling to be bracket blocks with different sizes, so that the requirements of assembling products with different models can be quickly met.

As shown in fig. 3, the stool handle assembly is mounted at the rear end of the vehicle chassis 1 by a stool hinge mount 17. The stool handle assembly can be used as a stool during assembly, and can also be stored on the side of the chassis and fixed after being rotated and folded twice at the stool handle rotating shaft 22 and the stool hinge mounting seat 17, so that the working condition that two trolleys are needed to be jointly used is facilitated. The stool handle assembly can also be rotatably unfolded at the two positions and uses the stool handle 19 as a handle during transportation, namely the spring fixing pin 20 is pulled out, the handle 19 can be rotated around the stool handle rotating shaft 22, the spring fixing pin 20 is loosened, and after the rotation is about 90 degrees, the spring fixing pin 20 automatically pops up and fixes the handle. During assembly, the seat cushion 21 of the stool handle assembly can be drawn out of the linear slide rail 18, and the seat cushion 21 is made of soft material so as to meet the operation comfort level of an assembly ergonomic seat. After the drawing is in place, the spring fixing pin mechanism is automatically popped out and fixed from the inside so as to increase the safety and reliability.

As shown in fig. 4, when the redundancy inspection is performed after the product is assembled, the pressure release valve 14 is loosened to lower the product and separate the product from the bracket, that is, the rollers 27 of the four redundancy inspection assemblies 4 paired left and right contact the arc surface of the product, and then the product is rotated to perform the audible inspection of the redundancy. The rollers 27 are made of a non-metallic material to avoid damaging the surface of the product. When interference exists during assembly of certain models of products, the supporting rod 26 can be pulled out from the mounting base 24 and rotated to a required angle, and then fixed through the insertion and extraction fixing pin 25. The supporting rod 26 is convenient to install by rotating and switching the supporting rod on the installation base in different directions, and can quickly respond to the assembly requirements of products of different models.

In summary, the multifunctional trolley for aerospace product assembly provided by the embodiment of the invention realizes the function of fast switching between devices in response to different types of products, and improves the flexibility level of equipment. Simultaneously, the lifting operation is simple and clear, has reduced workman manipulation strength. The multifunctional trolley is provided with the stool and the drawer, equipment in the cabin is installed in the original position, common tools and instruments and meters can be placed in various operations, and the operation integration degree is improved. The hoisting and transferring link is eliminated by the arranged redundancy checking assembly, and the operation efficiency is improved.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The multifunctional trolley for the assembly of the aerospace products is characterized by comprising a chassis, casters, a lifting bracket and a redundancy inspection assembly; the trundles are arranged below the chassis, the lifting bracket is arranged above the chassis, and the surplus object inspection assembly is arranged on the lifting bracket;

the lifting bracket consists of a bracket block, a quick bolt, a hydraulic jack, a pressure release valve, a lifting handle and a guide pillar and guide sleeve; the guide post and guide sleeve are arranged on two sides of the lifting bracket, the lifting handle is stirred leftwards and rightwards to carry out lifting operation of the lifting bracket, and the pressure release valve is loosened to carry out descending operation of the lifting bracket; replacing bracket blocks with different sizes by plugging and unplugging the quick bolts;

the redundancy checking assembly consists of an installation base, a plug fixing pin, a supporting rod and a roller; the supporting rod is fixed on the mounting base through a plug fixing pin, and the roller is connected to the top of the supporting rod; after the product is assembled, loosening the pressure release valve to enable the product to contact the roller after descending, and rotating the product to perform redundancy inspection;

the roller is made of non-metallic materials;

a stool handle assembly is arranged on one side of the chassis and can be rotated and stretched to be used as a stool and a handle;

the front end of the chassis is provided with a front connecting hinge, and the rear end of the chassis is provided with a rear connecting hinge matched with the front connecting hinge and used for connecting a plurality of trolleys according to requirements;

after the spring fixing pin is pulled out, the stool handle can rotate freely, and after the spring fixing pin is loosened, the stool handle can be automatically fixed after being rotated to a certain angle and cannot rotate any more;

a hydraulic jack is integrated in the lifting bracket, the lifting handle is shifted left and right to lift the bracket, and the loosening relief valve is used for lowering the bracket by means of the gravity of a product, namely the bracket;

when some types of products are assembled and interfere with each other, the supporting rod is pulled out of the mounting base and rotated to a required angle, and then the supporting rod is fixed by plugging and pulling the fixing pin; the supporting rod is rotatably switched to different directions on the mounting base, so that the assembly requirements of products of different models can be quickly responded;

when the stool handle component is assembled, the stool handle component can be used as a stool, and can also be stored on the side edge of the chassis and fixed after being rotated and folded twice at the stool handle rotating shaft and the stool hinge mounting seat, so that two trolleys can be used in a combined manner;

a slide rail is arranged above the chassis, so that the lifting bracket can slide on the slide rail and can be locked by a brake handle after stopping;

cover plates are arranged on two sides above the chassis.

2. The multi-function cart for aerospace product assembly of claim 1, wherein the chassis is provided with drawers at sides.