CN214556759U

CN214556759U - Creep aging forming device for metal plate

Info

Publication number: CN214556759U
Application number: CN202120618048.4U
Authority: CN
Inventors: 唐启东; 肖锎; 熊纯; 徐婷
Original assignee: Changsha Aeronautical Vocational and Technical College
Current assignee: Changsha Aeronautical Vocational and Technical College
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-11-02
Anticipated expiration: 2031-03-26

Abstract

The utility model discloses a metal plate creep age forming device, which comprises a lower die mounting plate, a lower die, an upper die mounting plate and an upper die, wherein the lower die mounting plate and the upper die mounting plate are arranged up and down relatively, the lower die is a die with a single-curvature die surface, the upper die is a convex die corresponding to the die, the lower die is arranged on the lower die mounting plate, the upper die is arranged below the upper die mounting plate, four vertex angles of the lower die mounting plate are all fixedly connected with slide bars, an electric telescopic rod is arranged on the lower die mounting plate between the left slide bar and the right slide bar, baffles are arranged on the lower die mounting plate outside the four vertex angles of the lower die, the baffles are provided with clamping structures, the clamping structures comprise limiting grooves arranged on the side walls of the baffles, and slide bars fixedly connected between the tops and the bottoms of inner cavities of the limiting grooves, the utility model has reasonable design structure, different metal materials can be limited and fixed, and the metal plate is not easy to deviate in the forming process, thereby ensuring the accuracy of the curvature of the plate.

Description

Creep aging forming device for metal plate

Technical Field

The utility model relates to a metal material processing technology field specifically is a sheet metal creep aging forming device.

Background

Creep-aging (CAF) is generally called aging stress relaxation forming in China, mainly utilizes the characteristics that part of metal materials are subjected to stress relaxation at high temperature and can be subjected to aging strengthening at certain temperature, and combines heat treatment and forming into a whole so as to realize integrated processing of a to-be-formed piece. In order to realize creep aging forming, a certain initial load is firstly applied to a to-be-formed piece to enable the to-be-formed piece to generate elastic deformation with a certain shape, then the deformation is kept and placed in a constant temperature for a period of time to enable the to-be-formed piece to generate creep aging, so that part of elastic deformation is converted into plastic deformation, and meanwhile, the to-be-formed piece is strengthened through creep aging, so that the forming purpose is achieved.

The prior patent No. CN202921725U discloses a metal plate creep age forming device, which comprises a base, supporting blocks, a bracket, guide pillars, a pressing plate, a pressing pipe and a mandril bolt, wherein the four supporting blocks are respectively fixed on four corners of the base, the two brackets are respectively fixed on two pairs of paired supporting blocks in a straddling manner, and two guide pillars are fixed on the base through two guide pillar holes arranged on the base at the central line position, the utility model discloses a groove can simultaneously carry out three groups of different curvature radiuses for the pure bending loading of the metal plate, the groove can also prevent the plate from shaking left and right in the loading process, the guide pillars and guide sleeves guide the pressing plate to vertically act on the pressing plate, thereby ensuring the smooth surface of the formed plate, simultaneously seeking the proper range of the minimum distance between a loading end and a supporting end through theoretical analysis, calculation and experimental verification, and avoiding the mutual interference among all parameters in the design, the forming device is simple and convenient to operate and suitable for practical application, but the applicant thinks that the forming device in the application cannot limit and fix different metal materials, and a metal plate is easy to tilt and move in the forming process, so that the curvature of the plate cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sheet metal creep aging forming device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a sheet metal creep age forming device, includes lower mould mounting panel, lower mould, goes up mould mounting panel and last mould, lower mould mounting panel and last mould mounting panel set up relatively from top to bottom, the lower mould is the die of single curvature die face, go up the terrace die of mould for corresponding die, the higher authority of lower mould mounting panel is installed to the lower mould, it installs below the mould mounting panel to go up the mould, the equal rigid coupling in four apex angle departments of lower mould mounting panel has the slide bar, the slide bar run through the top of last mould mounting panel and with last mould mounting panel sliding connection, control two install electric telescopic handle on the lower mould mounting panel between the slide bar, electric telescopic handle keeps away from the one end of lower mould mounting panel and the bottom rigid coupling of last mould mounting panel, all install the baffle on the lower mould mounting panel in the four apex angle outsides of lower mould, the baffle is provided with presss from both sides tight structure, press from both sides tight structure including offering the spacing groove of baffle lateral wall, The slide bar of rigid coupling between spacing inslot cavity top and bottom, sliding connection has from the top down respectively sliding connection have punch holder and lower plate on the slide bar, telescopic spring has been cup jointed on the slide bar of punch holder top, and goes up telescopic spring's both ends and the top of punch holder and spacing inslot cavity top rigid coupling respectively, telescopic spring has been cup jointed down on the slide bar of lower plate below, and telescopic spring's both ends down are rigid coupling bottom and the spacing inslot cavity bottom of lower plate respectively.

Preferably, threaded holes are formed in the lower die and the upper die, screws are screwed in inner cavities of the threaded holes, the lower die and the upper die are fixed on the lower die mounting plate and the upper die mounting plate through the screws respectively, and the lower die and the upper die can be replaced at any time according to requirements to be suitable for die surface forming of different curvatures.

Preferably, two the slide bar sets up about electric telescopic handle symmetry, can guarantee like this that the both ends of going up the mould flush, make and go up mould along linear motion to the accuracy of the shaping camber of panel has been guaranteed.

Preferably, the surface of the sliding rod is provided with scale marks, so that the moving distance of the upper die can be clearly known, and the curvature of the plate can be judged.

Preferably, the interval between punch holder and lower plate and the lower mould is less than the interval between baffle and the lower mould, can reduce the interference of lower mould to punch holder and lower plate motion like this to it is spacing to carry out different panel.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a sheet metal creep age forming device presss from both sides tight structure through adjustable and carries on spacingly to sheet metal, utilize the elastic deformation of expanding spring and lower expanding spring to stimulate punch holder and lower plate respectively and be close to each other, make punch holder and lower plate tightly laminate with sheet metal throughout, thereby carry out spacing fixed to sheet metal, the possibility of sheet metal skew in the forming process has been reduced, thereby the accuracy of sheet metal camber has been ensured, utilize electric telescopic handle to apply predeformation volume, in the motion process, judge loading deflection through the scale mark on the slide bar, thereby the sheet metal of different curvatures takes shape.

Drawings

FIG. 1 is a front view of the overall structure of the present invention;

FIG. 2 is a side view of the main structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the baffle plate of the present invention;

FIG. 4 is a top view of the lower mold mounting plate of the present invention;

in the drawings, 1, a lower die mounting plate; 2. an upper die mounting plate; 3. a lower die; 4. an upper die; 5. an electric telescopic rod; 6. a slide bar; 7. a baffle plate; 9. a clamping structure; 10. a limiting groove; 11. a slide bar; 12. an upper splint; 13. a lower splint; 14. an upper extension spring; 15. a lower extension spring; 16. a screw; 17. a threaded hole; 18. scale lines are marked.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention is provided.

The embodiment of the invention relates to a metal plate creep age forming device, which comprises a lower die mounting plate 1, a lower die 3, an upper die mounting plate 2 and an upper die 4, wherein the lower die mounting plate 1 and the upper die mounting plate 2 are arranged oppositely from top to bottom, the lower die 3 is a female die with a single-curvature die surface, the upper die 4 is a male die corresponding to the female die, the lower die 3 is arranged on the lower die mounting plate 1, the upper die 4 is arranged below the upper die mounting plate 2, four vertex angles of the lower die mounting plate 1 are fixedly connected with slide rods 6, the slide rods 6 penetrate through the top of the upper die mounting plate 2 and are in sliding connection with the upper die mounting plate 2, an electric telescopic rod 5 is arranged on the lower die mounting plate 1 between the left slide rod and the right slide rod 6, one end of the electric telescopic rod 5, far away from the lower die mounting plate 1, is fixedly connected with the bottom of the upper die mounting plate 2, baffles 7 are arranged on the lower die mounting plates 1 outside the four vertex angles of the lower die 3, and the baffles 7 are provided with clamping structures 9, the clamping structure 9 comprises a limiting groove 10 arranged on the side wall of the baffle 7, and a sliding rod 11 fixedly connected between the top of an inner cavity of the limiting groove 10 and the bottom of the inner cavity of the limiting groove 10, wherein the sliding rod 11 is connected with an upper clamping plate 12 and a lower clamping plate 13 in a sliding mode from top to bottom, an upper expansion spring 14 is sleeved on the sliding rod 11 above the upper clamping plate 12, two ends of the upper expansion spring 14 are fixedly connected with the top of the upper clamping plate 12 and the top of the inner cavity of the limiting groove 10 respectively, a lower expansion spring 15 is sleeved on the sliding rod 11 below the lower clamping plate 13, and two ends of the lower expansion spring 15 are fixedly connected with the bottom of the lower clamping plate 13 and the bottom of the inner cavity of the limiting groove 10 respectively.

In the embodiment, the lower die 3 and the upper die 4 are provided with threaded holes 17, the inner cavity of each threaded hole 17 is screwed with a screw 16, the lower die 3 and the upper die 4 are fixed on the lower die mounting plate 1 and the upper die mounting plate 2 through the screws 16 respectively, and the lower die 3 and the upper die 4 can be replaced at any time according to requirements so as to be suitable for forming die surfaces with different curvatures.

In the embodiment, the two sliding rods 6 are symmetrically arranged relative to the electric telescopic rod 5, so that two ends of the upper die 4 can be flush, the upper die 3 can move along a straight line, and the accuracy of the forming curvature of the plate is guaranteed.

In this embodiment, the surface of the slide bar 6 is provided with scale marks 18, so that the moving distance of the upper die 4 can be clearly known, and the curvature of the plate can be judged.

The distance between the upper clamping plate 12 and the lower clamping plate 13 and the lower die 3 is smaller than the distance between the baffle 7 and the lower die 3, so that the interference of the lower die 3 on the movement of the upper clamping plate 12 and the lower clamping plate 13 can be reduced, and different plates are limited.

The working principle is as follows: firstly, a metal plate is horizontally placed between a lower die 3 and an upper die 4, the peripheral corners of the metal plate are placed in a clamping structure 9, an upper expansion spring 14 downwards extrudes an upper clamping plate 12, a lower expansion spring 15 upwards extrudes a lower clamping plate 13, the upper clamping plate 12 and the lower clamping plate 13 are close to each other along a sliding rod 11 until the metal plate is limited, then an electric expansion rod 5 is started, the electric expansion rod 5 drives an upper die mounting plate 2 to move up and down, a sliding rod 6 plays a role in guiding, pre-deformation is exerted by the electric expansion rod 5, loading deformation is judged through a scale mark 18 on the sliding rod 6 during movement, the corners of the metal plate are continuously tilted during loading, the metal plate extrudes the upper clamping plate 12 and the lower clamping plate 13, and due to the elastic deformation of the upper expansion spring 14 and the lower expansion spring 15, the upper clamping plate 12 and the lower clamping plate 13 are always attached to the metal plate, thereby accomplish spacingly, place the mould of installation in the thermostat and keep warm for a certain time at last, in this process, the creep ageing process is accomplished to the aluminum alloy, and after the thermostatic time, take out whole mould from the thermostat to take out metal sheet from last mould 4 and lower mould 3.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a sheet metal creep age forming device, includes lower mould mounting panel (1), lower mould (3), goes up mould mounting panel (2) and last mould (4), its characterized in that: lower mould mounting panel (1) and last mould mounting panel (2) relative setting from top to bottom, lower mould (3) are the die of single camber die face, go up the terrace die of mould (4) for corresponding die, install on lower mould mounting panel (1) lower mould (3), it installs below last mould mounting panel (2) to go up mould (4), the equal rigid coupling in four apex angle departments of lower mould mounting panel (1) has slide bar (6), slide bar (6) run through the top of last mould mounting panel (2) and with last mould mounting panel (2) sliding connection, control two install electric telescopic handle (5) on lower mould mounting panel (1) between slide bar (6), electric telescopic handle (5) keep away from the one end of lower mould mounting panel (1) and the bottom rigid coupling of last mould mounting panel (2), all install baffle (7) on lower mould mounting panel (1) outside four apex angles of lower mould (3), baffle (7) are provided with and press from both sides tight structure (9), press from both sides tight structure (9) including spacing groove (10), the sliding rod (11) of rigid coupling between spacing groove (10) inner chamber top and bottom of seting up in baffle (7) lateral wall, sliding connection has punch holder (12) and lower plate (13) from the top down respectively on sliding rod (11), telescopic spring (14) have been cup jointed on sliding rod (11) of punch holder (12) top, and go up telescopic spring (14) both ends respectively with the top of punch holder (12) and spacing groove (10) inner chamber top looks rigid coupling, telescopic spring (15) down have been cup jointed on sliding rod (11) of lower plate (13) below, and the both ends of lower telescopic spring (15) respectively with the bottom of lower plate (13) and spacing groove (10) inner chamber bottom rigid coupling mutually.

2. A sheet metal creep age forming apparatus as claimed in claim 1, wherein: threaded holes (17) are formed in the lower die (3) and the upper die (4), screws (16) are screwed in inner cavities of the threaded holes (17), and the lower die (3) and the upper die (4) are fixed on the lower die mounting plate (1) and the upper die mounting plate (2) through the screws (16) respectively.

3. A sheet metal creep age forming apparatus as claimed in claim 1, wherein: the two sliding rods (6) are symmetrically arranged relative to the electric telescopic rod (5).

4. A sheet metal creep age forming apparatus as claimed in claim 1, wherein: the surface of the slide bar (6) is provided with scale marks (18).

5. A sheet metal creep age forming apparatus as claimed in claim 1, wherein: the distance between the upper clamping plate (12) and the lower clamping plate (13) and the lower die (3) is smaller than the distance between the baffle plate (7) and the lower die (3).