CN201186322Y

CN201186322Y - Mold for forming metal wallboard

Info

Publication number: CN201186322Y
Application number: CNU200820028373XU
Authority: CN
Inventors: 甘忠; 张志国; 成武东; 熊威
Original assignee: Northwestern Polytechnical University
Current assignee: Northwestern Polytechnical University
Priority date: 2008-02-25
Filing date: 2008-02-25
Publication date: 2009-01-28
Anticipated expiration: 2018-02-25

Abstract

The utility model relates to a die which is used to form metal wallboards, in particular to an assembled structure which combines four-point bending and a frame board structure and comprises a bottom board (12), frame boards (6,7), a pressure plate (2), briquettings (5) and shape plates (8), wherein a lead screw seat (11) is fixed on the upper frame boards (6) on two sides of a die cavity, an endless screw (3) is installed on a clamping support (4), lead screw holes (17) are arranged on two ends of the pressure plate (2), a pair of briquetting slots (14) which are symmetrically distributed are arranged inside the lead screw holes and on a pressure plate center line, the briquettings (5) are fixed in the briquetting slots, a baffle plate pole support (15) is connected with the pressure plate (2), a turbine baffle plate (10) is fixedly connected with the baffle plate pole support (15), two shape plates (8) are located in the die cavity of the die, and the curvature on the upper surface is defined according to the curvature of specimens. The die adopts a design mode that the distance between the shape plates can be adjusted and is applicable to pure bending load of the specimens, the specimens are still circular after resilience, and the die is characterized in that the structure is simple and the operation is convenient.

Description

A kind of mould that is used for the shaping of metal wallboard

One, technical field

The present invention relates to field of machining, is a kind of mould that the metal wallboard is shaped that is used for.

Two, background technology

Age forming (Age Forming) domesticly is referred to as usually that season stress is lax to be shaped, abroad be referred to as creep age forming (Creep Age-forming, CAF).

Typical age forming technology, mainly be to utilize alloy material that the characteristic of stress relaxation takes place in high temperature, workpiece is applied certain initial deformation, the distortion that keeps workpiece by plus load, in constant temperature, leave standstill a period of time, the material internal stress level prolongs in time and reduces, and the part elastic strain is converted into plastic strain, thereby reaches the purpose of shaping.

In the patent No. is 2007200315844 utility model patent, a kind of autoclave age forming die is disclosed, showed band rib/flange thickening degree wing monolithic molding but the shape of this mould by being positioned at the die cavity roll adjustment is firm and hard, and overcome at present that used mould is that monoblock cast forms when adopting aging technique to part forming, made the shortcoming of the deficiency that the process-cycle is long, cost is high.But the pure bending that this mould is unsuitable for flat test piece loads, and makes its scope of application be restricted.On the other hand, for the research of age forming bending springback, the most succinct with pure bending research.

Three, summary of the invention

Can not realize the pure bending of test specimen is loaded for overcoming existing frock, simplify the complexity of sheet metal bending, the present invention proposes a kind of mould that the metal wallboard is shaped that is used for.

The present invention includes base plate, deckle board and shape plate.Wherein, base plate is a rectangular slab, and the periphery around this plate upper surface has groove; Uniform a plurality of bolts hole that are used for fixing deckle board in the groove.Deckle board is divided into deckle board and lower frame plate, is the rectangle batten, and its length is with the length and the width of base plate; The width of the groove on the thickness of lower frame plate and the base plate is identical, is installed in the groove and is interference fit between the two; The square die cavity that constitutes mould that lower frame plate and base plate surround; On the lower frame plate of two minor faces of die cavity, have the bar hole that is used to adjust the shape Board position; Last deckle board is fixed on the leading screw seat, the same lower frame plate of its profile and size, and two ends have the last item hole; The lower surface of last deckle board matches with the upper surface of lower frame plate.The shape plate is two, and its length is with the length of die cavity, and its height has internal thread hole less than the height sum of lower frame plate and last deckle board in the both sides of shape plate; The upper surface both sides of shape plate are step-like, and the centre is a curved surface, and lower surface is the plane; The upper surface curvature of shape plate requires to determine according to the curvature of test specimen; Two blocks of shape plates are distributed in the die cavity of mould, and for preventing that the shape plate can produce displacement when mould being pressurizeed and vacuumize, the present invention is connected in the shape plate in the bar hole of deckle board by bolt, and realizes the adjustment of shape distance between plates by the position of adjusting bolt.Pressing plate is dull and stereotyped, and there is the hole that cooperates with worm screw at two ends, are fixed on the supporting seat of worm screw; Between the worm screw mating holes, the lower surface of pressing plate has the mounting groove of briquetting.Briquetting also is tabular, and thickness is with the width of mounting groove, and length is with the width of pressing plate, and height is advisable with handled easily; One end of briquetting is the plane, and the other end is a circular arc, and planar ends embeds in the mounting groove.The profile of supporting seat is stepped, and the via hole of worm screw is arranged at its top, and the bottom is useful on the bolt hole of fixation clip; The worm gear baffle plate of rectangle lays respectively at the top of two worm gears, and there is the leading screw pilot hole centre.

Operation principle of the present invention comes from four-point bending, is following two fulcrums of four-point bending with the last item that is installed in the last item hole, and two briquettings are top two fulcrums of four-point bending, and the relative motion by last lower fulcrum realizes the loading to test specimen.Relative motion between the fulcrum realizes by the leading screw screw drive mechanism.Characteristics of the present invention are, can realize the pure bending of test specimen is loaded, and shape face retaining part is provided with sliding trough plate and can slides along groove, closely can satisfy the requirement of different in width test specimen.

Four, description of drawings

Accompanying drawing 1 is the structural representation that is used for the mould of metal wallboard shaping.

Accompanying drawing 2 is the left views that are used for the mould of metal wallboard shaping.

Accompanying drawing 3 is the vertical views that are used for the mould of metal wallboard shaping.

Accompanying drawing 4 is the structural representations that are used for the die bottom plate of metal wallboard shaping.

Accompanying drawing 5 is the cutaway views that are used for the clamping cap of metal wallboard shaping.

Accompanying drawing 6 is the structural representations that are used for the mould of metal wallboard shaping.

Wherein:

1. deckle board on leading screw 2. pressing plates 3. worm screws 4. supporting seats 5. briquettings 6.

7. lower frame plate 8. shape plates 9. last item holes 10. turbine baffle plates, 11. leading screw seats, 12. base plates

13. chute 14. block slots 15. baffle plate poles 16. base plate grooves 17. lead screw hole

Five, the specific embodiment

Present embodiment is to be used for the thick dull and stereotyped pure bending age forming die of (500 * 50 * 5) mm (accompanying drawing 1), present embodiment is the combining structure that four-point bending combines with frame plate structure, comprise base plate 12, briquetting 5, go up deckle board 6, lower frame plate 7, shape plate 8, worm screw 3, leading screw 1, pressing plate 2 and worm gear baffle plate 10, wherein:

Base plate 12 has one to be rectangle, and the periphery around this plate upper surface has groove 16.Lower frame plate 7 has four, is the rectangle batten, and its thickness is identical with the width of base plate groove 16, is inlaid in the base plate groove 16, and fixes by the bolt hole that is positioned at the base plate groove; Base plate 12 and the square that lower frame plate 7 surrounds have constituted the die cavity of mould; On four angles, be mutually permanently connected between four lower frame plate 7 by bolt.With both sides lower frame plate that shape plate 8 parallels on, two chutes 13 that are used to regulate spacing between the shape plate are arranged.Last deckle board 6 has four, and its thickness is identical with lower frame plate 7, is aluminium alloy rectangle batten, and two ends have the last item hole 9 and the fixing bar hole of shape plate 8, goes up deckle boards for four and surrounds passive square frame by the bolt connecting plate; Be fixed with leading screw seat 11 in the both sides of last deckle board 6.

Shape plate 8 is two, and its length is with the length of die cavity, and its height has internal thread hole less than the height sum of lower frame plate 6 and last deckle board 7 in the both sides of shape plate 8; The upper surface both sides of shape plate 8 are step-like, and the centre is a curved surface, and lower surface is the plane; The upper surface curvature of shape plate requires to determine according to the curvature of test specimen; Two blocks of shape plates 8 are distributed in the die cavity of mould, for preventing that the shape plate can produce displacement when mould being pressurizeed and vacuumize, present embodiment is connected in shape plate 8 in the bar hole of deckle board 7 by bolt, and by adjusting the position of bolt, adjusts spacing between two blocks of shape plates.

Pressing plate 2 is dull and stereotyped, and there is the hole that cooperates with worm screw 3 at two ends, are fixed on the supporting seat 4 of worm screw; Between the worm screw mating holes, the lower surface of pressing plate has the mounting groove of briquetting 5.Briquetting 5 also is tabular, and thickness is with the width of mounting groove, and length is with the width of pressing plate 2, and height is advisable with handled easily; One end of briquetting 5 is the plane, and the other end is a circular arc, and planar ends embeds in the mounting groove.The worm gear baffle plate 10 of rectangle lays respectively at the top of two worm gears, and there is the pilot hole of leading screw 1 centre.

Supporting seat 4 is a metal plate structure spare, and its profile is stepped, and the via hole of worm screw 3 is arranged at its top, and the bottom is useful on the bolt hole of fixation clip 2.

Leading screw seat shape is identical with standard axle bearing shape, uniform the bolt hole of four symmetries on leading screw seat 11.Leading screw 1 is common trapezoidal screw, and reference diameter is 30mm, and leading screw is identical with the leading screw seat material, is steel No. 45.Have on the pressing plate 2 one block-shaped for rectangle and its lower surface have the symmetry block slots 14 and lead screw hole 17, groove width is identical with the thickness of briquetting 5; Worm screw 3 is common worm screw, and its length slightly is longer than the length of pressing plate 5, and the supporting seat that is positioned at pressing plate 5 both sides is made with No. 45 steel, and worm gear is a typical turbine, the proportioning of worm gear and worm screw 3 40: 1, and the modulus of worm gear is 2, and reference diameter is 84mm, and material is a tin bronze.The worm gear baffle plate has two, is the rectangle batten, and its length is not interfered during with the assurance assembling greater than turbine diameter; The centre of surface of worm gear baffle plate 10 has lead screw hole 1, and this bore dia is more bigger than leading screw; Uniform the baffle plate pole hole at four angles of worm gear baffle plate; Baffle plate pole 15 is the stairstepping cylinder, and the two terminal circle column diameter is less, and the length of the big and intermediate cylindrical of intermediate cylindrical diameter is greater than worm gear thickness, and worm gear rotates flexibly when guaranteeing that assembling is finished.

Claims

1. one kind is used for the mould that the metal wallboard is shaped, and comprises base plate (12), deckle board and shape plate (8), and the periphery around base plate (12) upper surface has groove (16), and deckle board is installed in the base plate groove; Shape plate (8) is distributed in the die cavity, and spacing is adjustable; It is characterized in that the present invention also comprises pressing plate (2), briquetting (5), leading screw (1), turbine, worm screw (3) and supporting seat (4), and on deckle board (6) on the die cavity both sides, be fixed with leading screw seat (11); Turbine is positioned at leading screw seat (11) top; Worm screw (3) is installed on the supporting seat (4) at pressing plate (2) two ends, there is lead screw hole (17) at the two ends of pressing plate (2), this hole is positioned on the center line of pressing plate (2), on the center line of lead screw hole (17) inboard, pressing plate (2), the block slots (14) of a pair of symmetrical distribution is arranged; Briquetting (5) is fixed on the block slots (14) that is positioned at pressing plate (2) lower surface, and baffle plate pole links to each other with pressing plate (2), and turbine baffle plate (10) is connected with baffle plate pole (11).

2. a kind of according to claim 1 mould that is used for the shaping of metal wallboard, the upper surface dual-side that it is characterized in that shape plate (8) is step-like, and its length is with the length of die cavity, and its height is less than the height sum of lower frame plate (6) and last deckle board (7); Shape plate (8) upper surface is a curved surface.

3. a kind of according to claim 1 mould that is used for the shaping of metal wallboard is characterized in that supporting seat (4) for stepped, and the via hole of worm screw (3) is arranged at its top, and the bottom is useful on the bolt hole of fixation clip (2).