CN113579773A

CN113579773A - Tool suitable for clamping honeycomb cores of various specifications and sizes

Info

Publication number: CN113579773A
Application number: CN202110782007.3A
Authority: CN
Inventors: 吴湘; 魏莉
Original assignee: Harbin Institute of Technology Shenzhen
Current assignee: Harbin Institute of Technology Shenzhen
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2021-11-02

Abstract

The invention belongs to the technical field of aerospace equipment, and in particular relates to a tooling suitable for clamping honeycomb cores of various specifications and sizes. The beams on one side are fixed, and the beams on the other two sides are movable. When clamping, the movable beams will follow the size of the honeycomb core. Both the fixed beam and the movable beam are designed with movable honeycomb core clamping tooling clamps. After the core is clamped, the movable beam is pulled to the outside to stretch and tension the honeycomb core. After being stretched in place, the size of the honeycomb core is positioned and the position is locked and maintained by the corrugated screw on the sliding seat. The clamping tooling structure is simple, the clamping and fixing of the honeycomb core is fixed with standard screws, and the clamping is convenient and fast; all components are ready-made standard items on the market, and the sliding of the movable beam is achieved by using round rods to guide rails and linear bearings. Completed, Tesco has been replaced, and the cost is lower.

Description

Tool suitable for clamping honeycomb cores of various specifications and sizes

Technical Field

The invention belongs to the technical field of aerospace equipment, and particularly relates to a tool suitable for clamping honeycomb cores of various specifications and sizes.

Background

At present, the existing mechanism for pulling, tensioning and clamping the honeycomb core or the plate-shaped object has the defects of unique tool size, heavy equipment and higher cost, and is not suitable for the requirement of frequent operation and use on a production line. Therefore, it is necessary to design a tool suitable for clamping honeycomb cores of various specifications.

Disclosure of Invention

The invention aims to provide a tool suitable for clamping honeycomb cores of various specifications and sizes, the clamping tool is simple in structure, and the honeycomb cores are fixed by standard screws, so that the clamping is convenient and quick; all the components are standard articles existing in the market, and the sliding of the movable beam is completed by a round rod to a guide rail and a linear bearing, so that the movable beam is easy to purchase and replace and has lower cost. One set of frock system deals with the demand that honeycomb core of different specification and dimension carries out the clamping, and frock structure will be simple, light simultaneously, easy to operate and remove. The clamping device is mainly applied to the honeycomb core clamping operation in the aerospace field and the aviation field, and can also be applied to equipment and industries which have the requirements on stretching and clamping of plate-shaped objects with different specifications and sizes.

The technical scheme adopted by the invention is as follows: a tool suitable for clamping honeycomb cores of various specifications and sizes comprises an outer frame cross beam square tube, a fixed long cross beam, a fixed short cross beam, a movable long cross beam, a movable short cross beam, a honeycomb core, a long side honeycomb core clamping tool, a short side honeycomb core clamping tool, a movable sliding block set, a short round bar guide rail, a long round bar guide rail, a short side left fixed clamping seat and a short side right fixed clamping seat; the outer frame cross beam square tube is assembled into a frame through an L-shaped corner piece, and the long fixed cross beam and the short fixed cross beam are respectively arranged on two adjacent outer frame cross beam square tubes through screws; the movable long cross beam and the movable short cross beam are respectively provided with a movable sliding block set at two ends, each movable sliding block set comprises a mounting seat, a linear bearing, a bearing limiting left jackscrew, a bearing limiting right jackscrew and a corrugated screw, one end of the mounting seat is mounted at the end part of the cross beam through the screw, and the linear bearing is mounted in a round hole at the other end of the mounting seat; the linear bearings at the two ends of the movable long cross beam are sleeved on the long round bar guide rail, the linear bearings at the two ends of the movable short cross beam are sleeved on the short round bar guide rail, the short round bar guide rail is arranged on a short edge left fixed clamping seat and a short edge right fixed clamping seat which are fixed on the frame, and the long round bar guide rail is arranged on a short edge right fixed clamping seat which is fixed on the frame; a linear bearing is embedded in the movable sliding group, and the linear bearing and the round bar linear guide rail slide in a matched manner to adapt to the size of the honeycomb core; the long-side nest core tooling clamps are respectively arranged on the fixed long beam and the movable long beam, and the short-side nest core tooling clamps are respectively arranged on the fixed short beam and the movable short beam; the honeycomb core is installed on the tool through the long-edge honeycomb core tool clamp and the short-edge honeycomb core tool clamp.

Furthermore, the bearing limit left jackscrew and the bearing limit right jackscrew are installed at the top end of the installation seat, and the corrugated screw is installed on the side face of the installation seat.

Furthermore, long-edge fixing screws and short-edge fixing screws are arranged on the long-edge nest core tooling clamp and the short-edge nest core tooling clamp respectively.

Furthermore, the tool mainly comprises an outer frame, an inner frame, a honeycomb core clamping tool and the like, the structural form of the tool is that a beam with two edges is fixed, the beam with the other two edges can move, the movable beam can follow up according to the size of the honeycomb core during clamping, the movable honeycomb core clamping tool and the movable beam are both designed on the fixed beam and the movable beam, after the honeycomb core is clamped, the movable beam is pulled outwards to stretch and tension the honeycomb core, and after the honeycomb core is stretched in place, the size of the honeycomb core is positioned and the position of the honeycomb core is locked by corrugated screws on a sliding seat, and the honeycomb core is kept.

Further, when the clamping begins, place the honeycomb core in the frock internal frame earlier, the clamping of the fixed limit honeycomb core of processing frock earlier, with the honeycomb core stopper advance long limit honeycomb core frock clamp with the short side honeycomb core frock clamp after, pass the honeycomb core hole with long limit fixed screw and short side fixed screw and fix, the frock clamp is established and is counted as the up end and is the unthreaded hole, the terminal surface is the screw hole down, just so can be very simple completion frock clamp fixed with the clamping of honeycomb core, the frock structure is similar, but the size slightly differs, long limit honeycomb core frock clamp and short side honeycomb core frock clamp, its purpose is on same horizontal plane to ensure the installation face of honeycomb core. After the clamping of the honeycomb core workpiece is completed, the extending movable cross beam and the short movable cross beam need to be pulled outwards one by one to complete the tensioning and fixing of the honeycomb core tool, and after the honeycomb core workpiece is stretched in place, the position is fixed and locked by a corrugated screw in the sliding seat, so that the tensioning and clamping work of the honeycomb core is completed.

The invention has the beneficial effects that: the clamping tool is simple in structure, and clamping and fixing of the honeycomb cores are carried out by using standard screws, namely, the clamping is convenient and quick; all the components are standard articles existing in the market, and the sliding of the movable beam is completed by a round rod to a guide rail and a linear bearing, so that the movable beam is easy to purchase and replace and has lower cost. One set of frock system deals with the demand that honeycomb core of different specification and dimension carries out the clamping, and frock structure will be simple, light simultaneously, easy to operate and remove. The clamping device is mainly applied to the honeycomb core clamping operation in the aerospace field and the aviation field, and can also be applied to equipment and industries which have the requirements on stretching and clamping of plate-shaped objects with different specifications and sizes.

Description of the drawings:

FIG. 1 is a schematic structural diagram of the first embodiment;

FIG. 2 is an enlarged view of a portion of I of FIG. 1;

FIG. 3 is an enlarged view of a portion P of FIG. 1;

fig. 4 is a partial enlarged view of K in fig. 1.

The specific implementation mode is as follows:

example one

Referring to the figures, the tool suitable for clamping the honeycomb cores of various specifications and sizes comprises an outer frame cross beam square tube 1, a fixed long cross beam 3, a fixed short cross beam 4, a movable long cross beam 5, a movable short cross beam 6, a honeycomb core 7, a long edge honeycomb core tool clamp 8, a short edge honeycomb core tool clamp 9, a movable sliding block group 10, a short round bar guide rail 11, a long round bar guide rail 12, a short edge left fixed clamping seat 13 and a short edge right fixed clamping seat 14; the outer frame beam square tube 1 is assembled into a frame through L-shaped angle pieces 2, and the long fixed beam 3 and the short fixed beam 4 are respectively arranged on the two adjacent outer frame beam square tubes 1 through screws; two ends of the movable long cross beam 5 and the movable short cross beam 6 are respectively provided with a movable sliding block group 10, each movable sliding block group 10 comprises an installation seat 301, a linear bearing 302, a bearing limit left jackscrew 303, a bearing limit right jackscrew 304 and a corrugated screw 305, one end of the installation seat 301 is installed at the end part of the cross beam through the screw, and the linear bearing 302 is installed in a round hole at the other end of the installation seat 301; the linear bearings 302 at the two ends of the movable long beam 5 are sleeved on the long round bar guide rail 12, the linear bearings 302 at the two ends of the movable short beam 6 are sleeved on the short round bar guide rail 11, the short round bar guide rail 11 is arranged on a short-edge left fixed clamping seat 13 and a short-edge right fixed clamping seat 14 which are fixed on the frame, and the long round bar guide rail 12 is arranged on a short-edge right fixed clamping seat 14 which is fixed on the frame; the long-side nest core tooling clamps 8 are respectively arranged on the fixed long beam 3 and the movable long beam 5, and the short-side nest core tooling clamps 9 are respectively arranged on the fixed short beam 4 and the movable short beam 6; the honeycomb core 7 is arranged on a tool through a long-edge honeycomb core tool clamp 8 and a short-edge honeycomb core tool clamp 9; the bearing limit left jackscrew 303 and the bearing limit right jackscrew 304 are arranged at the top end of the mounting seat 301, and the corrugated screw 305 is arranged on the side surface of the mounting seat 301; and a long-edge fixing screw 201 and a short-edge fixing screw 202 are respectively arranged on the long-edge nest core tooling clamp 8 and the short-edge nest core tooling clamp 9.

In order to solve the problems of light weight and good rigidity of the honeycomb core clamping tool, aluminum alloy materials are selected when the materials of the whole tool system are selected. The peripheral frame of the tool is an aluminum alloy square tube with the thickness of 50 multiplied by 30 multiplied by 3mm, the connection between the square tubes is designed to be an L-shaped corner piece plug-in structure, the tool is convenient to disassemble and assemble, and the tool is made of aluminum alloy materials; the internal frame beam is an aluminum square tube with the diameter of 40 multiplied by 20 multiplied by 2mm, and a fixed mounting seat of the internal frame square tube is also processed by aluminum alloy; the honeycomb clamping tool clamp is formed by cutting an iron material with the thickness of 2mm in consideration of frequency and durability of use. The total weight is light, the control is within 10KG, and two people can easily operate.

For solving the demand that is applicable to different specification and dimension honeycomb core clamping, adopt the scheme that both sides are fixed, both sides are movable to adapt to the honeycomb core clamping demand of different sizes, simultaneously on fixed cross beam and movable cross beam, the honeycomb core frock clamp of design makes a round trip to stir in respective crossbeam, and the opening height of honeycomb core frock clamp is 30mm simultaneously, can be applicable to the honeycomb core clamping demand within 30mm of thickness.

When clamping the honeycomb core, firstly, clamping and fixing the honeycomb core of the side beam fixed by the fixture, and then, plugging the corresponding side of the honeycomb core into the honeycomb core fixture and fixing the honeycomb core by screws; then the fixing operation of the two movable edges is processed, the two movable cross beams are moved to positions close to the honeycomb core according to the size of the honeycomb core, then the honeycomb core is inserted into a tool clamp on the movable cross beams, and then the two movable cross beams are sequentially fixed by screws.

After the four sides of the honeycomb core are fixed, the movable cross beams are pulled outwards one by one, after the honeycomb core is stretched in place, the current position is fixed and locked by corrugated screws in the sliding seats, and the clamping of the honeycomb core is finished immediately.

The tool is mainly used for continuously optimizing, improving and perfecting the structure in terms of efficiency, cost and use frequency, and the size of a clamped maximum workpiece is 4000 multiplied by 2500 multiplied by 30 mm. From user's angle, when selecting whole frame material, adopt the aluminum alloy square tube to assemble and form, whole frock system's quality is no longer than 10KG, and the quality is light, the rigidity is good, and the workman can easily operate.

Claims

1. A tooling that can be applied to the clamping of honeycomb cores of various sizes, is characterized in that: the tooling comprises an outer frame beam square pass (1), a fixed long beam (3), a fixed short beam (4), a movable beam Long beam (5), movable short beam (6), honeycomb core (7), long side socket core tooling clamp (8), short side socket core tooling clamp (9), movable slider group (10), short round bar The guide rail (11), the long round rod guide rail (12), the left fixed clip on the short side (13) and the right fixed clip on the short side (14); Assembled into a frame, the long fixed beam (3) and the short fixed beam (4) are respectively installed on the two adjacent outer frame beams (1) by screws; the movable long beam (5) and the movable short beam Both ends of the beam (6) are respectively installed with movable slider groups (10), and the movable slider group (10) includes a mounting seat (301), a linear bearing (302), a bearing limit left top wire (303), and a bearing limiter. Position the right top wire (304) and the corrugated screw (305), one end of the mounting seat (301) is mounted on the end of the beam through the screw, and the linear bearing (302) is mounted in the circular hole at the other end of the mounting seat (301); the The linear bearings (302) at both ends of the movable long beam (5) are set on the long round rod guide rail (12), and the linear bearings (302) at both ends of the movable short beam (6) are set on the short round rod guide rail (11). The round bar guide rail (11) is installed on the short-side left fixing bracket (13) and the short-side right fixing bracket (14) fixed on the frame, and the long round bar guide rail (12) is installed on the short-side right fixing bracket fixed on the frame. on the card seat (14); the long-side socket core tooling clips (8) are respectively installed on the fixed long beam (3) and the movable long beam (5), and the short-side socket core tooling clips (9) are respectively installed on On the fixed short beam (4) and the movable short beam (6); the honeycomb core (7) is installed on the tooling through the long-side socket core tooling clip (8) and the short-side socket core tooling clip (9).

2. A tooling suitable for clamping honeycomb cores of various sizes according to claim 1, characterized in that: the bearing limit left top wire (303) and the bearing limit right top wire (304) Mounted on the top of the mounting seat (301), the corrugated screw (305) is mounted on the side of the mounting seat (301).

3. A tooling suitable for clamping honeycomb cores of various specifications and sizes according to claim 1, characterized in that: the long-side socket core fixture (8) and the short-side socket core fixture (9) A long side fixing screw (201) and a short side fixing screw (202) are respectively provided on the upper side.