CN206474576U - Mould for fuel tank hanger - Google Patents

Abstract

The utility model discloses the mould for fuel tank hanger, including upper bolster and die shoe, punch-pin is installed on upper bolster, cavity plate is installed on die shoe, supporting plate is installed in cavity plate, and supporting plate top matches with male bottom, damping cavity is offered in die shoe, also include the connecting rod that two ends are hinged, madial wall of two connecting rod other end ends respectively with two guide pillars is hinged, and spring is connected with above the articulated section that two connecting rods are hinged, lower spring is connected with below the articulated section that two connecting rods are hinged, and the coefficient of elasticity of upper spring is more than the coefficient of elasticity of lower spring.The utility model uses Integral bending means, and unconventional some progress bending to steel plate, the overall stress of steel plate is may be such that in the molding cavity formed between supporting plate and recessed film, so that steel plate uniform force in processing, there are stress raisers in the bending part reduced in shaping bracket base, improves the service life of bracket.

Description

Mould for fuel tank hanger

Technical field

The utility model is related to mould field, specifically refers to the mould for fuel tank hanger.

Background technology

There is the vehicle mainly tractor destroyed in fuel tank hanger, and operation road surface is usually the road surface more than Class II highway Condition, vehicle occurs bulk crackle hidden danger or fracture when travelling 7000km or so.Fuel tank hanger is in the process of running, main The quality load of fuel tank is born, while having the influence of dynamic load factor, i.e. road shocks, becomes the force environment of fuel tank hanger Obtain more severe.Fuel tank hanger destruction is tentatively judged as fatigue fracture, because bracket is that two pieces " several " shaped steel is welded, welds Position does not have external reinforcing ribs plate, more weak, and the load that experiences a shock during operation, and finally resulting in bracket can not bear added Load and brittle fracture occurs suddenly.As can be seen here, fuel tank hanger is during the manufacturing, for its integrally-built intensity Control is particularly important.

Traditional fuel tank hanger is generally processed using Bending Mould to steel, first bracket due to flanging depth compared with Greatly, unsuitable first curved punching again, therefore first steel are punched out with process, then bending processing is carried out to steel, but traditional Easily there is the bending part of above mentioned problem, i.e. bracket after being welded with fuel tank in bending processing, fuel tank is held in the palm during operation The bending part of frame easily forms stress concentration point, along with weld defect that may be present, in stress concentration point and weld defect Position gradually produces blind crack, forms tired source, with the increase of distance travelled, crackle gradually extends, the section quilt of component Gradually slacken, so that added load can not be born and brittle fracture occurs suddenly.

Utility model content

The purpose of this utility model, which is to provide, is used for the mould of fuel tank hanger, facilitates steel to carry out bending process, The intensity of bracket bending part is improved, extends the service life of bracket.

The purpose of this utility model is achieved through the following technical solutions：

For the mould of fuel tank hanger, including upper bolster and die shoe, punch-pin is installed on upper bolster, in lower mould Cavity plate is installed on seat, supporting plate is installed in the cavity plate, and supporting plate top matches and both phases with male bottom Mutually coordinate the forming cavity for constituting bracket, damping cavity is offered in the die shoe, the damping cavity bottom is provided with two Square blind hole, block rubber is placed in square blind hole, and the lower of guide pillar is rectified to the block rubber and stayed between block rubber upper surface There is spacing, the upper end of two guide pillars is connected after activity runs through die shoe, cavity plate with supporting plate bottom successively, and in supporting plate bottom surface Gap is left between the end face of guide pillar upper end, the spacing is highly mutual more than the height in the gap, in addition to two ends The connecting rod being hinged, madial wall of two connecting rod other end ends respectively with two guide pillars is hinged, and mutual in two connecting rods Spring is connected with above the articulated section that is hinged, lower spring is connected with below the articulated section that two connecting rods are hinged, and on The coefficient of elasticity of spring is more than the coefficient of elasticity of lower spring.

During work, upper bolster is separated under the drive of driving equipment with die shoe, and steel plate raw material are placed in supporting plate, Driving upper bolster is moved down, and punch-pin is contacted with supporting plate, and the molding cavity that steel plate is constituted between punch-pin and supporting plate Gradually it is molded, molding cavity is identical with the shape of existing fuel tank hanger, the steel plate stress and part contacted with punch-pin continues to move down, Damping cavity is offered in die shoe, when steel plate is depressed into by punch-pin is fitted completely with supporting plate top, guide pillar stress is moved down, The articulated section that two connecting rods are squeezed and cause both to be hinged simultaneously is moved up, and causes spring to be compressed, lower spring quilt Stretch, deformation and deformation recovery by upper spring and lower spring itself, subtract described in the impact dynamics that die shoe is subject to It is slow to eliminate, it is to avoid die shoe, cavity plate and supporting plate stress are impaired and cause the reduction of its service life；After steel plate forming, on Die holder is moved up, and upper spring and lower spring elasticity recovery in damping cavity, the elastic force of generation force guide pillar to move up again, And then drive supporting plate to move up, directly the quick of the bracket base in supporting plate is collected by artificial, and the upper spring selected simultaneously Coefficient of elasticity be more than lower spring coefficient of elasticity so that guide pillar is when moving down, based on above spring, supplemented by lower spring, passes through Deform upon the applied stress that guide pillar is transferred into connecting rod quickly to eliminate, when guide pillar is moved up, same above spring is Main, supplemented by lower spring, the articulated section that the relatively large elastic force that upper spring is produced can force two connecting rods to be hinged is quick Move down, to force guide pillar to reset again, and the block rubber being arranged in square blind hole can avoid guide pillar bottom from acting directly on On damping cavity, while preventing that guide pillar stress is damaged, moreover it is possible to reduce noise produced during guide pillar impact damping cavity.This reality With new use Integral bending means, and it is unconventional bending is a little carried out to steel plate, formed between supporting plate and recessed film Molding cavity in may be such that the overall stress of steel plate so that steel plate uniform force in processing, reduce the folding in shaping bracket base There are stress raisers in crook, it is to avoid bracket is during the use after being welded with fuel tank, and the bending of bracket is in weld part Separate existing blind crack and form tired source, improve the service life of bracket

The tipper and level trough of interconnection are provided with the supporting plate, in the connection of the tipper and level trough Place is provided with arc groove.When laminated steel raw material is molded under upper bolster, punch-pin is respectively moved to level trough, arc groove and tipper Bottom land when stop movement, steel plate pushes by punch-pin respectively in level trough, arc groove and tipper, and three kinds of the compound of groove make With can guarantee that the overall uniform force of the bracket processed by steel plate, it is to avoid the bending part stress raisers of bracket occur, carry Steel plate, can be pressed into the angle of bend needed for fuel tank hanger by the use intensity of high bracket under the suppressing action of punch-pin；Wherein This programme uses Integral bending means, and it is unconventional bending is a little carried out to steel plate, three grooves are connected with each other and may be such that Steel plate entirety stress so that local stress collection occurs in steel plate uniform force in processing, the bending part reduced in shaping bracket base In.

The bottom of the punch-pin matches with tipper, level trough and arc groove, is provided with the male bottom both sides Lower platen.The profile of male bottom and tipper, level trough and arc groove matches, and steel plate can be bent into required shape, The lower platen installed on the both sides of trapezoid block can make steel plate formation supporting surface, the contact surface of the supporting surface increase bracket and fuel tank Product, it is ensured that the stability of fuel tank in use.

The upper spring and lower spring are torsionspring.Preferably, upper spring uses torsionspring with lower spring, So that produced by the articulated section that guide pillar extrudes two connecting rods when moving down and (moving up) and causes both to be hinged moves up and (moved up) Non-directional active force can completely be eliminated, while ensure that upper spring is not damaged easily with lower spring, and then realization extends into The purpose of type die life.

The utility model compared with prior art, has the following advantages and advantages：

1st, the utility model use Integral bending means, and it is unconventional to steel plate a little carry out bending, in supporting plate The overall stress of steel plate is may be such that in the molding cavity formed between recessed film so that steel plate uniform force in processing, reduced Shaping bracket base bending part there are stress raisers, it is to avoid bracket during the use after being welded with fuel tank, bracket There is blind crack in welding portion and forms tired source in bending, improves the service life of bracket；

2nd, guide pillar is when moving down in the utility model, based on above spring, supplemented by lower spring, will be led by deforming upon The applied stress that post is transferred to connecting rod is quickly eliminated, when guide pillar is moved up, based on same above spring, supplemented by lower spring, The articulated section that the relatively large elastic force that upper spring is produced can force two connecting rods to be hinged quickly is moved down, to force guide pillar Again reset, and the block rubber in square blind hole can avoid guide pillar bottom from acting directly on damping cavity, prevent While guide pillar stress is damaged, moreover it is possible to reduce noise produced during guide pillar impact damping cavity；

3rd, spring and lower spring use torsionspring on the utility model so that guide pillar extrudes two when moving down and (moving up) Individual connecting rod and the non-directional active force produced by the articulated section that causes both to be hinged moves up and (moved up) can be eliminated completely, Ensure that upper spring is not damaged easily with lower spring simultaneously, and then realize the purpose of extension mould service life.

Brief description of the drawings

Accompanying drawing described herein is used for providing further understanding the utility model embodiment, constitutes the one of the application Part, does not constitute the restriction to the utility model embodiment.In the accompanying drawings：

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the sectional view of tipper；

Fig. 3 is the structural representation of supporting plate；

Mark and corresponding parts title in accompanying drawing：

1- cavity plates, 2- supporting plates, 3- guide pillars, 4- punch-pin, 5- upper bolsters, 6- brackets base, 7- die shoes, 8- dampings cavity, 9- block rubbers, 10- connecting rods, the upper springs of 11-, 12- lower springs, 13- tippers, 14- lower platens, 15- arc grooves, 16- level troughs.

Embodiment

For the purpose of this utility model, technical scheme and advantage is more clearly understood, with reference to embodiment and accompanying drawing, The utility model is described in further detail, and exemplary embodiment of the present utility model and its explanation are only used for explaining this Utility model, is not intended as limiting of the present utility model.

Embodiment 1

As shown in Figure 1 to Figure 3, this includes upper bolster 5 and die shoe 7, punch-pin 4 is provided with upper bolster 5, in die shoe Cavity plate 1 is installed on 7, supporting plate 2 is installed in the cavity plate 1, and the top of supporting plate 2 matches and two with the bottom of punch-pin 4 Person, which cooperates, constitutes the forming cavity of bracket, damping cavity 8 is offered in the die shoe 7, the bottom of damping cavity 8 is opened Have two square blind holes, block rubber 9 is placed in square blind hole, guide pillar 3 it is lower rectify to the block rubber 9 and with block rubber 9 Spacing is left between surface, the upper end of two guide pillars 3 is connected after activity runs through die shoe 7, cavity plate 1 with the bottom of supporting plate 2 successively, And gap is left between the bottom surface of supporting plate 2 and the upper end end face of guide pillar 3, the spacing is highly more than the height in the gap, also Including the spring 10 being arranged in sleeve 9, stress ring 12, the upper end of spring 10 are installed on the lower end outer circle wall of guide pillar 3 It is connected with stress ring 12, the lower end of spring 10 is contacted with the bottom surface of damping cavity 8.

During work, upper bolster 5 is separated under the drive of driving equipment with die shoe 7, and steel plate raw material are placed in into supporting plate 2 On, driving upper bolster 5 is moved down, and punch-pin 4 is contacted with supporting plate 2, and what steel plate was constituted between punch-pin 4 and supporting plate 2 Molding cavity is gradually molded, and molding cavity is identical with the shape of existing fuel tank hanger, steel plate stress and the part contacted with punch-pin 4 Continue to move down, damping cavity 8 is offered in die shoe 7, when steel plate is depressed into by punch-pin 4 is fitted completely with the top of supporting plate 2, The stress of guide pillar 3 is moved down, while the articulated section that two connecting rods 10 are squeezed and cause both to be hinged is moved up, causes spring 11 are compressed, and lower spring 12 is stretched, deformation and deformation recovery by upper spring 11 and lower spring 12 itself, by lower mould Slow down elimination described in the impact dynamics that seat 7 is subject to, it is to avoid die shoe 7, cavity plate 1 and the stress of supporting plate 2 are impaired and cause it to make Use service life reduction；After steel plate forming, upper bolster 5 is moved up, and the upper spring 11 and lower spring 12 in damping cavity 8 are replied Elasticity, the elastic force of generation forces guide pillar 3 to move up again, and then drives supporting plate 2 to move up, by artificial directly by supporting plate 2 The quick of bracket base 6 is collected, and the coefficient of elasticity for the upper spring 11 selected simultaneously is more than the coefficient of elasticity of lower spring 12 so that led Post 3 is when moving down, based on above spring 11, and supplemented by lower spring 12, guide pillar 3 is transferred to the work of connecting rod 10 by deforming upon Quickly eliminated with stress, when guide pillar 3 is moved up, based on same above spring 11, supplemented by lower spring 12, upper spring 11 is produced Relatively large elastic force articulated section that two connecting rods 10 can be forced to be hinged quickly move down, to force guide pillar 3 again multiple Position, and the block rubber 9 being arranged in square blind hole can avoid the bottom of guide pillar 3 from acting directly on damping cavity 8, prevent guide pillar While 3 stress are damaged, moreover it is possible to reduce noise produced during the impact damping cavity of guide pillar 3.The utility model is rolled over using overall Bending of the hand section, and can make in unconventional some progress bending to steel plate, the molding cavity formed between supporting plate 2 and recessed film Obtain the overall stress of steel plate so that local stress occurs in steel plate uniform force in processing, the bending part reduced in shaping bracket base 6 Concentrate, it is to avoid bracket during the use after being welded with fuel tank, the bending of bracket there is blind crack in welding portion and Tired source is formed, the service life of bracket is improved

Wherein, the tipper 13 and level trough 16 of interconnection are provided with the supporting plate 2, the tipper 13 with The junction of level trough 16 is provided with arc groove 15.In 5 times laminated steel raw material shapings of upper bolster, punch-pin 4 is respectively moved to water Rise as high as the banks 16, arc groove 15 and tipper 13 bottom land when stop movement, steel plate is in level trough 16, arc groove 15 and tipper 13 Pushed respectively by punch-pin 4, the compound use of three kinds of grooves, can guarantee that the overall uniform force of bracket processed by steel plate, keep away Exempt from the bending part stress raisers for bracket occur, improve the use intensity of bracket, can be by steel plate under the suppressing action of punch-pin 4 It is pressed into the angle of bend needed for fuel tank hanger；Wherein this programme uses Integral bending means, and unconventional to the one of steel plate Point carries out bending, and three grooves, which are connected with each other, may be such that the overall stress of steel plate so that steel plate uniform force in processing, reduce There are stress raisers in the bending part of shaping bracket base 6.

Preferably, the bottom of the punch-pin 4 matches with tipper 13, level trough 16 and arc groove 15, described convex The two bottom sides of mould 4 are provided with lower platen 14.The bottom of punch-pin 4 and the profile of tipper 13, level trough 16 and arc groove 15 match, Steel plate can be bent into required shape, the lower platen 14 installed on the both sides of trapezoid block can make steel plate formation supporting surface, described Supporting surface increases the contact area of bracket and fuel tank, it is ensured that the stability of fuel tank in use.

The upper spring 11 and lower spring 12 are torsionspring.Preferably, upper spring 11 is used with lower spring 12 Torsionspring so that the articulated section that guide pillar 3 extrudes two connecting rods 10 when moving down and (moving up) and causes both to be hinged is moved up Non-directional active force produced by (moving up) can be eliminated completely, at the same ensure upper spring 11 and lower spring 12 not easily by Damage, and then realize the purpose of extension mould service life.

Above-described embodiment, is entered to the purpose of this utility model, technical scheme and beneficial effect One step is described in detail, be should be understood that and be the foregoing is only embodiment of the present utility model, is not used to limit Fixed protection domain of the present utility model, all any modifications within spirit of the present utility model and principle, made, is equally replaced Change, improve, should be included within protection domain of the present utility model.

Claims (4)

1. for the mould of fuel tank hanger, including upper bolster (5) and die shoe (7), punch-pin is installed on upper bolster (5) (4) cavity plate (1), is installed on die shoe (7), supporting plate (2), and supporting plate (2) top are installed in the cavity plate (1) Match with punch-pin (4) bottom and both cooperate and constitute the forming cavity of bracket, it is characterised in that：In the die shoe (7) Damping cavity (8) is inside offered, damping cavity (8) bottom is provided with two square blind holes, and block rubber (9) is placed in square blind hole Interior, lower rectify of guide pillar (3) leaves spacing, two guide pillars (3) to the block rubber (9) and between block rubber (9) upper surface Activity is connected with supporting plate (2) bottom afterwards through die shoe (7), cavity plate (1) successively for upper end, and in supporting plate (2) bottom surface and Gap is left between the end face of guide pillar (3) upper end, the spacing is highly mutual more than the height in the gap, in addition to two ends The connecting rod (10) being hinged, madial wall of two connecting rod (10) other end ends respectively with two guide pillars (3) is hinged, and two Spring (11) is connected with above the articulated section that individual connecting rod (10) is hinged, the articulated section being hinged in two connecting rods (10) Lower section is connected with lower spring (12), and coefficient of elasticity of the coefficient of elasticity more than lower spring (12) of upper spring (11).

2. the mould according to claim 1 for fuel tank hanger, it is characterised in that：In the supporting plate (2) The tipper (13) and level trough (16) of interconnection are provided with, is set in the junction of the tipper (13) and level trough (16) There is arc groove (15).

3. the mould according to claim 2 for fuel tank hanger, it is characterised in that：The bottom of the punch-pin (4) Match with tipper (13), level trough (16) and arc groove (15), in the punch-pin (4), two bottom sides are provided with lower platen (14)。

4. the mould according to claim 1 for fuel tank hanger, it is characterised in that：The upper spring (11) is with Spring (12) is torsionspring.