CN108817223A

CN108817223A - Stamping die

Info

Publication number: CN108817223A
Application number: CN201810592250.7A
Authority: CN
Inventors: 安祖桂
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-06-11
Filing date: 2018-06-11
Publication date: 2018-11-16

Abstract

The invention discloses a kind of stamping dies, including pedestal 1, be slidably connected upper die holder 2 and lower die holder 3 on pedestal 1, lower die holder 3 and upper die holder 2 are respectively equipped with support rod 4 and balladeur train 5, and support rod 4 and balladeur train 5 are slidably connected on pedestal 1 by the first slide assemblies and the second slide assemblies along the vertical direction respectively；Support rod 4 is equipped with first straight line rack gear, is rotatably connected to first gear 6 on pedestal 1, and stopper rod 8 is slidably connected on pedestal 1, and stopper rod 8 is equipped with second straight line rack gear；Pedestal 1 has valve seat 10, stopper rod 8 is slidably connected at 10 one end of valve seat, 10 the other end of valve seat is equipped with the first oil inlet 11, the first cavity 12, the second cavity 13 and third cavity 14 for running of hydraulic power oil are successively arranged from the 8 to the first oil inlet of stopper rod 11 on valve seat 10, first cavity 12 is connected to the second cavity 13 by transition runner 15, and 8 end of stopper rod is equipped with first piston 16.It is higher to provide a kind of automatization level, and the higher stamping die of machining accuracy.

Description

Stamping die

Technical field

The present invention relates to mechanical engineering field, especially a kind of stamping die.

Background technique

Stamping die is in Cold Press Working, by metal or process for un-metal material at a kind of process equipment of part； Specifically refer to, under room temperature state, using the mold being mounted on press machine to material apply pressure, make its generate separation or Plastic deformation, and then obtain a kind of pressure processing method of required structure.Setting for power source is all according to different works Condition demand carries out the press machine of buying different size or model.The output end of press machine is connected with for placing under blank Die holder and the upper die holder acted for punching press；But after carrying out press work for general blank, workpiece occurs plasticity and becomes Shape, since, once losing external force, blank has a certain amount of rebound, such as metalwork passes through punching press after blank deformation When mold carries out processing U-shaped part, once upper die holder and lower die holder carry out a point mould, the opening of U-shaped part will extend out and be in loudspeaker Mouthful structure, be unable to ensure that stamp out two lateral flange of opening be parallel workpiece；That is, stamping die in the prior art Have the deficiency low there are machining accuracy；Moreover, stamping die is lower with automatization level when dividing mould in molding in the prior art.

Summary of the invention

The technical problem to be solved by the present invention is to, overcome existing technological deficiency, it is higher to provide a kind of automatization level, and The higher stamping die of machining accuracy.

The technical solution of the invention is as follows, provides a kind of stamping die having following structure：Including pedestal, on pedestal Be slidably connected upper die holder and lower die holder, and lower die holder and upper die holder are respectively equipped with support rod and balladeur train, and support rod leads to respectively with balladeur train It crosses the first slide assemblies and the second slide assemblies is slidably connected on the base along the vertical direction；Support rod is equipped with first straight line tooth Item is rotatably connected on pedestal for the first gear with first straight line rack gear engaged transmission, and pedestal passes through guide pad sliding company It is connected to stopper rod, stopper rod is equipped with for the second straight line rack gear with first gear engaged transmission；Pedestal is connected with valve by bracket Seat, stopper rod are slidably connected at valve seat one end, and valve seat the other end is equipped with the first oil inlet, from stopper rod to the first oil inlet on valve seat Mouth is successively arranged the first cavity, the second cavity and third cavity for running of hydraulic power oil, and the first cavity and the second cavity passed through Runner connection is crossed, first cavity inside one end is located on stopper rod equipped with the first piston for cooperating with transition runner；Second is empty Chamber is connected to third cavity by cutoff hole, valve seat hole site of shutting off be rotatably connected to for be connected to or be truncated the second cavity with The valve plate of third cavity, valve plate is with valve seat by pulling component to connect；It is fuel-displaced that first is equipped between third cavity and the first cavity Pipe, the first flowline are equipped with the valve for opening or closing the first flowline；Pedestal is equipped with fuel tank, and the first cavity passes through second Flowline is connected to fuel tank；Pedestal is equipped with constant displacement pump, and constant displacement pump input terminal is connected to fuel tank, and quantitative pump output terminal passes through oil inlet Pipe is connected to the first oil inlet on valve seat；Valve seat is provided with cylinder in third cavity sidewalls, and cylinder lower end is equipped with and is used for The second oil inlet being connected to third cavity, mandril is slidably connected in cylinder, and mandril is located at cylinder interior one end equipped with second Piston is equipped with the first pushing component between balladeur train and mandril, the second promotion for being used to open valve is equipped between mandril and pedestal Component, mandril successively contact work with the first pushing component, the second pushing component.

Preferably as one kind of the invention, support rod is slidably connected on the base along the vertical direction by the first slide assemblies Refer to, pedestal is equipped with claw, and support rod is equipped with the plush copper for pushing against or being detached from claw, and plush copper is located at below claw； Pedestal is equipped with the limited block for pushing against or being detached from support rod lower end below support rod, support rod lower end and pedestal it Between be equipped with the first pressure spring for pushing plush copper to be resisted against on claw.

Preferably as one kind of the invention, balladeur train is slidably connected on the base along the vertical direction by the second slide assemblies is Refer to, balladeur train is equipped with guide post, and pedestal is equipped with the guide sleeve slided for guide post, and guide post upper end is equipped with annulus, and pedestal, which is equipped with, to be used In the straight pin for pushing against or being detached from guide post upper end；Annulus is socketed with the second pressure between straight pin and guide sleeve, on guide post Spring, second pressure spring one end and annulus push against, and the other end and guide sleeve end push against.

As an improvement of the present invention, pedestal slidably connects stopper rod by guide pad and refers to, pedestal is equipped with guiding Block, stopper rod are slidably connected on guide pad by dovetail groove；Stopper rod is staggered with support rod, and the stopper rod direction of motion and support The bar direction of motion is vertical.

As an improvement of the present invention, the first cavity is connected to by transition runner with the second cavity and is referred to, the first cavity It is equipped with the runner for running of hydraulic power oil with the second cavity intersection, which is isosceles trapezoid, first piston Axial section shape is the isosceles trapezoid to match with transition runner cross sectional shape；Second cavity is connected to third cavity by cutoff hole Refer to, the second cavity internal perisporium aperture is less than third cavity internal perisporium aperture, is formed in the second cavity and third cavity intersection Step surface；Valve plate refers to that valve plate is rotatably connected in third cavity by the first hinge joint with valve seat by pulling component to connect Portion, valve seat are equipped with the first gag lever post and the second gag lever post in third cavity, and the first gag lever post and valve plate are pushed against or be detached from, first Gag lever post to the first hinge joint distance less than the second gag lever post to the distance of the first hinge joint；Between valve plate and the second gag lever post Equipped with the first tension spring for pulling valve plate to be resisted against on the first gag lever post, first tension spring one end and valve plate are rotatablely connected, another End is rotatablely connected with the second gag lever post.

As an improvement of the present invention, cylinder interior is equipped with the 4th cavity slided for second piston, the second oil inlet Be connected to the 4th cavity, cylinder upper end is equipped with the circular hole that slides for mandril, be socketed on mandril for push second piston against Third pressure spring on the second oil inlet.

As an improvement of the present invention, the first pushing component is equipped between balladeur train and mandril to refer to, pedestal passes through second Hinge joint is rotatably connected to the first wobble plate, and balladeur train is equipped with third linear gear rack, and first wobble plate one end and mandril upper end push against Or be detached from, the other end is equipped with using the second hinge joint as first arc-shaped rack in the center of circle, the first arc-shaped rack and third linear gear rack Engaged transmission, third linear gear rack are arranged in parallel with guide post.

As an improvement of the present invention, it is equipped with the second pushing component for being used to open valve between mandril and pedestal Refer to, pedestal is rotatably connected to the second wobble plate by third hinge joint, and second wobble plate one end and mandril upper end push against or be detached from, separately One end is equipped with using third hinge joint as second arc-shaped rack in the center of circle, is rotatably connected on pedestal for nibbling with the second arc-shaped rack The second gear of transmission is closed, valve periphery wall is equipped with for the third gear with second gear engaged transmission；Valve outer wall is equipped with Switch block, pedestal are equipped with the first blend stop and the second blend stop for pushing against with switch block, the first blend stop and the second blend stop in valve peripheral It is spaced apart around valve axis, and switch block, in the gap between the first blend stop and the second blend stop, the second wobble plate passes through limit Component is connect with pedestal.

As an improvement of the present invention, mandril successively refers to the first pushing component, the contact work of the second pushing component, Second wobble plate is located above the first wobble plate, and third hinge joint is located above the second hinge joint, mandril be located at the second hinge joint and In gap between third hinge joint, mandril is successively pushed against with the first wobble plate, the second wobble plate.

As an improvement of the present invention, the second wobble plate is connect with pedestal by limit assembly and is referred to, pedestal, which is equipped with, to be used In the bayonet lock for pushing against or being detached from the second wobble plate, it is equipped between pedestal and the second wobble plate for pulling the second wobble plate to be resisted against bayonet lock On the second tension spring, be rotatablely connected close to bayonet lock one end in second tension spring one end and the second wobble plate, the other end and pedestal rotation connect It connects.

After using the above structure, compared with prior art, the present invention can will be to be punched for a kind of stamping die of the present invention Blank is placed into the cavity plate of lower die holder, and lower die holder and support rod are glided by blank gravity, and support rod passes through First straight line rack gear engages that second straight line rack gear and stopper rod is driven to slide with first gear, and then it is living to reduce stopper rod end first The opening of plug and transition runner；The hydraulic oil of original constant displacement pump discharge followed by oil inlet pipe, the first oil inlet, third cavity, Fuel tank is returned to after cutoff hole, the second cavity, transition runner, the first cavity and the second flowline, and running of hydraulic power oil is stablized, and Once first piston and transition runner opening reduce suddenly, this will lead to the hydraulic oil flowed in the second cavity and third cavity Flow velocity is accelerated, this is because the hydraulic oil that equivalent is discharged in constant displacement pump within the unit time enters third cavity and the second cavity, and The hydraulic oil needs of this part equivalent are arranged within the same unit time to the first cavity, and then only accelerate hydraulic oil in the second sky Flow velocity in chamber, third cavity is just able to achieve；Have again and be exactly, hydraulic oil flow rate quickening will push in the second cavity, third cavity Valve plate is rotated around the first hinge joint, and until valve plate is resisted against the step surface of the second cavity and third cavity intersection, this is Because the hydraulic oil flow rate quickening of the second cavity, third cavity will increase impact of the hydraulic oil to valve plate, the impact meeting that valve plate is subject to Overcome the first tension spring to constrain and is detached from the first gag lever post；After the second cavity and third cavity is truncated in valve plate, with quantitative Constantly hydraulic oil is discharged toward third cavity in pump, and third cavity inside pressure constantly increases, and the hydraulic oil in third cavity will push Mandril increases, and mandril can take the lead in contacting with the first wobble plate in elevation process and the first wobble plate is pushed to rotate, and the first wobble plate passes through The decline of first arc-shaped rack and third linear gear rack engaged to drive balladeur train, balladeur train drive upper die holder decline, upper die holder with Lower die holder mold and then carries out punching press to the blank in lower die holder, obtains standard compliant workpiece；With third cavity Pressure continues to increase, and mandril will continue to increase, and the first wobble plate end is resisted against on mandril side wall and remain stationary, until mandril Upper end contacts with the second wobble plate and the second wobble plate is pushed to rotate, and the second wobble plate can pass through the second arc-shaped rack during rotation Second gear rotation is driven, second gear is rotated by third gear band movable valve, and then opens valve with fuel-displaced by first Pipe is connected to third cavity and the first cavity, and the hydraulic oil in third cavity can flow through the first flowline and enter the first cavity, And then the pressure in third cavity is released, so that valve plate, mandril, the first wobble plate, the second wobble plate reset successively；Wherein, exist It in mandril elevation process, contacted with the first wobble plate, was contacted afterwards with the second wobble plate before this, and remain stationary from the first wobble plate to second Wobble plate starts turning the period that this period is the workpiece progress pressure maintaining that punching press is completed in lower die holder, punching press can be allowed to complete The static cavity plate in lower die holder of workpiece in, reduce upper die holder and lower die holder and divide the deflection that workpiece is sprung back after mould.Always For, the present apparatus can be automatically controlled by the primary sliding of lower die holder the molding of upper die holder and lower die holder, pressure maintaining and point Mould substantially increases automatization level, also improves punching press and obtains the precision of workpiece；In conclusion the present invention provides one kind certainly Dynamicization higher level, and the higher stamping die of machining accuracy.

Detailed description of the invention

Fig. 1 is the schematic diagram of stamping die of the present invention.

Fig. 2 is that valve plate separates the second cavity and state diagram when third cavity in the present invention.

Fig. 3 is the state diagram that mandril pushes after the rotation of the first wobble plate in the present invention.

Fig. 4 is the state diagram that mandril pushes after the rotation of the second wobble plate in the present invention.

As shown in the figure：1, pedestal, 2, upper die holder, 3, lower die holder, 4, support rod, 5, balladeur train, 6, first gear, 7, guiding Block, 8, stopper rod, 9, bracket, 10, valve seat, the 11, first oil inlet, the 12, first cavity, the 13, second cavity, 14, third cavity, 15, transition runner, 16, first piston, 17, cutoff hole, 18, valve plate, the 19, first flowline, 20, fuel tank, 21, second is fuel-displaced Pipe, 22, constant displacement pump, 23, oil inlet pipe, 24, cylinder, the 25, second oil inlet, 26, mandril, 27, second piston, 28, claw, 29, Plush copper, 30, limited block, the 31, first pressure spring, 32, guide post, 33, guide sleeve, 34, annulus, 35, straight pin, the 36, second pressure spring, 37, First hinge joint, the 38, first gag lever post, the 39, second gag lever post, the 40, first tension spring, the 41, the 4th cavity, 42, third pressure spring, 43, the second hinge joint, the 44, first wobble plate, 45, third linear gear rack, the 46, first arc-shaped rack, 47, valve, 48, third it is hinged Point, the 49, second wobble plate, the 50, second arc-shaped rack, 51, second gear, 52, switch block, the 53, first blend stop, the 54, second blend stop, 55, bayonet lock, the 56, second tension spring.

Specific embodiment

Present invention will be further explained below with reference to the attached drawings and specific embodiments.

As shown, stamping die of the present invention includes pedestal 1, be slidably connected upper die holder 2 and lower die holder 3 on pedestal 1, lower die Seat 3 is respectively equipped with support rod 4 and balladeur train 5 with upper die holder 2, and support rod 4 and balladeur train 5 all slide along the vertical direction, and then really Protecting upper die holder 2 can be molded with lower die holder 3, and support rod 4 and balladeur train 5 pass through the first slide assemblies and the second Slide Group respectively Part is slidably connected at along the vertical direction on pedestal 1；Support rod 4 is equipped with first straight line rack gear, is rotatably connected to and is used on pedestal 1 With the first gear 6 of first straight line rack gear engaged transmission, pedestal 1 slidably connects stopper rod 8 by guide pad 7, and stopper rod 8 is equipped with For the second straight line rack gear with 6 engaged transmission of first gear；Pedestal 1 is connected with valve seat 10 by bracket 9, and the sliding of stopper rod 8 connects It connects in 10 one end of valve seat, 10 the other end of valve seat is equipped with the first oil inlet 11, from the 8 to the first oil inlet of stopper rod 11 on valve seat 10 It is successively arranged the first cavity 12, the second cavity 13 and third cavity 14 for running of hydraulic power oil, the first cavity 12 and the second cavity 13 are connected to by transition runner 15, and 12 inside one end of the first cavity is located on stopper rod 8 and is equipped with for cooperating with transition runner 15 First piston 16；Second cavity 13 is connected to third cavity 14 by cutoff hole 17, and valve seat 10 is rotated in 17 position of cutoff hole to be connected It is connected to the valve plate 18 for being connected to or being truncated the second cavity 13 and third cavity 14, valve plate 18 is inclined in valve seat 10, and The opening of valve plate 18 and 10 inner wall of valve seat is towards the first oil inlet 11, as shown in Figure 1, valve plate 18 and valve seat 10 are by pulling component Connection；The first flowline 19 is equipped between third cavity 14 and the first cavity 12, the first flowline 19 is equipped with and opens or closes The valve 47 of first flowline 19, valve 47 here is ball valve, is opened and closed by rotating；Pedestal 1 is equipped with fuel tank 20, the first cavity 12 is connected to by the second flowline 21 with fuel tank 20；Pedestal 1 is equipped with constant displacement pump 22,22 input terminal of constant displacement pump It is connected to fuel tank 20,22 output end of constant displacement pump is connected to by oil inlet pipe 23 with the first oil inlet 11 on valve seat 10；Valve seat 10 exists Cylinder 24 is provided on 14 side wall of third cavity, 24 lower end of cylinder is equipped with the second oil inlet for being connected to third cavity 14 25, mandril 26 is slidably connected in cylinder 24, mandril 26 is located at 24 inside one end of cylinder equipped with second piston 27, balladeur train 5 and top It is equipped with the first pushing component between bar 26, the second pushing component for being used to open valve 47, top are equipped between mandril 26 and pedestal 1 Bar 26 successively contacts work with the first pushing component, the second pushing component.

Support rod 4 is slidably connected on pedestal 1 along the vertical direction by the first slide assemblies to be referred to, pedestal 1 is equipped with pressure Pawl 28, support rod 4 are equipped with the plush copper 29 for pushing against or being detached from claw 28, and plush copper 29 is located at 28 lower section of claw；Pedestal 1 exists Be equipped with the limited block 30 for pushing against or being detached from 4 lower end of support rod below support rod 4,4 lower end of support rod and pedestal 1 it Between be equipped with the first pressure spring 31 for pushing plush copper 29 to be resisted against on claw 28.

Balladeur train 5 is slidably connected on pedestal 1 along the vertical direction by the second slide assemblies to be referred to, balladeur train 5 is equipped with guide post 32, pedestal 1 is equipped with the guide sleeve 33 that slide for guide post 32, and 32 upper end of guide post is equipped with annulus 34, pedestal 1 equipped with for lead The straight pin 35 that 32 upper end of column pushes against or is detached from；Annulus 34 is socketed on guide post 32 between straight pin 35 and guide sleeve 33 Second pressure spring 36,36 one end of the second pressure spring and annulus 34 push against, and the other end and 33 end of guide sleeve push against.

Pedestal 1 slidably connects stopper rod 8 by guide pad 7 and refers to, pedestal 1 is equipped with guide pad 7, and stopper rod 8 passes through dovetail Slot is slidably connected on guide pad 7, and stopper rod 8 is slidably connected in the horizontal direction on guide pad 7；Stopper rod 8 is staggeredly set with support rod 4 It sets, and 8 direction of motion of stopper rod is vertical with 4 direction of motion of support rod.

First cavity 12, which is connected to the second cavity 13 by transition runner 15, to be referred to, the first cavity 12 and the second cavity 13 are handed over The runner for running of hydraulic power oil is equipped at boundary, which is isosceles trapezoid, the axial section shape of first piston 16 It is the isosceles trapezoid to match with 15 cross sectional shape of transition runner；Second cavity 13 is connected to third cavity 14 by cutoff hole 17 Refer to, 13 internal perisporium aperture of the second cavity is less than 14 internal perisporium aperture of third cavity, has a common boundary in the second cavity 13 with third cavity 14 Place forms step surface；Valve plate 18 refers to that valve plate 18 is connected by the rotation of the first hinge joint 37 with valve seat 10 by pulling component to connect It connects inside third cavity 14, valve seat 10 is equipped with the first gag lever post 38 and the second gag lever post 39, the first limit in third cavity 14 Position bar 38 and valve plate 18 are pushed against or are detached from, and the distance of first the 38 to the first hinge joint of gag lever post 37 is less than the second gag lever post 39 to the The distance of one hinge joint 37；It is equipped between valve plate 18 and the second gag lever post 39 for pulling valve plate 18 to be resisted against the first gag lever post 38 On the first tension spring 40,40 one end of the first tension spring and valve plate 18 be rotatablely connected, the other end and the rotation connection of the second gag lever post 39.

The 4th cavity 41 slided for second piston 27 is equipped with inside cylinder 24, the second oil inlet 25 and the 4th cavity 41 connect Logical, 24 upper end of cylinder is equipped with the circular hole slided for mandril 26, is socketed on mandril 26 for pushing second piston 27 to be resisted against the Third pressure spring 42 on two oil inlets 25.

It is equipped with the first pushing component between balladeur train 5 and mandril 26 and refers to that pedestal 1 is rotatably connected to by the second hinge joint 43 First wobble plate 44, balladeur train 5 are equipped with third linear gear rack 45, and 44 one end of the first wobble plate and 26 upper end of mandril push against or be detached from, It is first arc-shaped rack 46 in the center of circle, the first arc-shaped rack 46 and third linear gear rack 45 that the other end, which is equipped with the second hinge joint 43, Engaged transmission, third linear gear rack 45 are arranged in parallel with guide post 32.

Refer between mandril 26 and pedestal 1 equipped with the second pushing component for being used to open valve 47, pedestal 1 passes through third and cuts with scissors Contact 48 is rotatably connected to the second wobble plate 49, and 49 one end of the second wobble plate and 26 upper end of mandril push against or be detached from, and the other end is equipped with It is second arc-shaped rack 50 in the center of circle with third hinge joint 48, is rotatably connected on pedestal 1 for being nibbled with the second arc-shaped rack 50 The second gear 51 of transmission is closed, 47 periphery wall of valve is equipped with for the third gear with 51 engaged transmission of second gear；Valve 47 Outer wall is equipped with switch block 52, and pedestal 1 is equipped with the first blend stop 53 and the second blend stop 54 for pushing against with switch block 52 in valve peripheral, the One blend stop 53 is spaced apart with the second blend stop 54 around 47 axis of valve, and switch block 52 be located at the first blend stop 53 and the second blend stop 54 it Between gap in, the second wobble plate 49 is connect by limit assembly with pedestal 1.

Mandril 26 successively refers to that the second wobble plate 49 is located at first with the first pushing component, the contact work of the second pushing component 44 top of wobble plate, and third hinge joint 48 is located at 43 top of the second hinge joint, the second wobble plate 49 and the first wobble plate 44 are from top to bottom It is distributed on pedestal 1, the second hinge joint 43 is located at 26 right side of mandril, and third hinge joint 48 is located at 26 left side of mandril, mandril In 26 gap between the second hinge joint 43 and third hinge joint 48, mandril 26 successively with the first wobble plate 44, the second wobble plate 49 push against.

Second wobble plate 49, which is connect by limit assembly with pedestal 1, to be referred to, pedestal 1 is equipped with for pushing against with the second wobble plate 49 Or the bayonet lock 55 being detached from, it is equipped between pedestal 1 and the second wobble plate 49 for pulling the second wobble plate 49 to be resisted against the on bayonet lock 55 It is rotatablely connected in two tension springs 56,56 one end of the second tension spring and the second wobble plate 49 close to 55 one end of bayonet lock, the other end and pedestal 1 rotate Connection.

Working principle：Firstly, blank is placed in the cavity plate of lower die holder 3 by operator, lower die holder 3 is by blank Gravity and drive support rod 4 to decline, support rod 4 drives the by engaging for first straight line rack gear and first gear 6 Two linear gear racks and stopper rod 8 slide to the right, and the opening between 8 right part first piston 16 of stopper rod and transition runner 15 becomes suddenly It is small；Since the hydraulic oil of equivalent being discharged in 22 unit time of constant displacement pump, hydraulic oil is followed by oil inlet pipe 23, the first oil inlet 11, oil is returned to after third cavity 14, cutoff hole 17, the second cavity 13, transition runner 15, the first cavity 12, the second flowline 21 Case 20, as unexpected become smaller being open between first piston 16 and transition runner 15 will lead to the second cavity 13 and third cavity 14 The speed of interior running of hydraulic power oil increases, this is because the second cavity 13 will within the same unit time with the needs of third cavity 14 The hydraulic oil of equivalent is arranged to the first cavity 12, but opening, which can only increase flow velocity just after becoming smaller, can ensure that discharge in the unit time The hydraulic oil of equivalent；In other words, as the sliding of turning right suddenly of stopper rod 8 causes opening to become smaller the second cavity 13 can be caused empty with third 14 internal pressure of chamber increases, and 12 internal pressure of the first cavity reduces, and then hydraulic oil is speeded from high pressure to the speed of low pressure； And once the second cavity 13 will lead to valve plate 18 with oil flow rate quickening hydraulic in third cavity 14 and make the inverse time around the first hinge joint 37 Needle rotation, valve plate 18 and the first gag lever post 38 are detached from, and the first tension spring 40 is softened, until valve plate 18 be resisted against the second cavity 13 and Until on step surface between third cavity 14；This is because hydraulic oil flow rate quickening will lead to impact of the hydraulic oil to valve plate 18 Become larger, and then valve plate 18 can be caused to overcome the constraint of the first tension spring 40 and be flipped, as shown in Figure 2；

Then, constant displacement pump 22 continues to discharge hydraulic oil to third cavity 14, so that 14 internal pressure of third cavity increases, the Hydraulic oil in three cavitys 14 can flow through the second oil inlet 25 and enter in the 4th cavity 41 of cylinder 24, inside the 4th cavity 41 Pressure is increased with 14 pressure rise of third cavity, and then second piston 27 and mandril 26 is pushed to increase；Mandril 26 is increasing It can take the lead in contacting with 44 left part of the first wobble plate in the process and the first wobble plate 44 is pushed to rotate clockwise around the second hinge joint 43, First wobble plate, 44 right part engages that balladeur train 5 is pulled to decline with third linear gear rack 45 by the first arc-shaped rack 46, and balladeur train 5 is left The upper die holder 2 of end follows balladeur train 5 to decline together, until upper die holder 2 and the completion molding of lower die holder 3, and then completes to lower die holder 3 The punching press of interior blank, as shown in Figure 3；In the elevation process after mandril 26,44 left part of the first wobble plate is resisted against always State is remain stationary on 26 side wall of mandril, i.e. the first wobble plate 44 keeps the state in Fig. 3；

As 14 pressure of third cavity persistently increases, the pressure in the 4th cavity 41 also continues to increase to push second piston 27 and mandril 26 continue to increase, mandril 26 can be contacted in elevation process with 49 right part of the second wobble plate, and push second pendulum Plate 49 is rotated counterclockwise around third hinge joint 48, and the second wobble plate 49 is detached from bayonet lock 55 and struts the second tension spring 56；Second pendulum 49 left part of plate drives second gear 51 to rotate by the second arc-shaped rack 50, and second gear 51 passes through third gear engaged transmission Carry out band movable valve 47 to rotate, and then Open valve 47 so that hydraulic oil can flow in the first flowline 19, i.e., third is empty Hydraulic oil in chamber 14 can flow through the first flowline 19 and enter in the first cavity 12, discharge the pressure of third cavity 14, such as Shown in Fig. 4；Wherein, in 26 elevation process of mandril, a period is that the first wobble plate 44 is remain stationary to the second wobble plate 49 The time interval started turning, upper die holder 2 and lower die holder 3 keep molding state during this period of time, it may also be said to be to punching press The dwell time section for completing workpiece, can be improved the stability that workpiece is completed in punching press, reduces upper die holder 2 and divides with lower die holder 3 The deflection that workpiece is sprung back after mould；

Finally, due to which 14 internal pressure of third cavity reduces, then valve plate 18 is under the effect of the first tension spring 40 around the first hinge Contact 37, which rotates clockwise, to be resisted against again on the first gag lever post 38, and second piston 27 and mandril 26 are acted in third pressure spring 42 Lower reset, the first wobble plate 44 and the second wobble plate 49 invert reset respectively；The second tooth can be passed through in 49 reversion process of the second wobble plate The 51 band rotation of movable valve 47 of wheel resets；In 44 reversion process of the first wobble plate, the second pressure spring 36 pushes balladeur train 5 to increase to drive Upper die holder 2 and lower die holder 3 divide mould, and then operator is facilitated to take out the workpiece that punching press is completed out of lower die holder 3 cavity plate.

The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit protection scope of the present invention.It is all in this hair Within bright claim, made any modification, equivalent replacement and improvement etc., should be included in protection scope of the present invention it It is interior.

Claims

1. a kind of stamping die, it includes pedestal (1), and be slidably connected upper die holder (2) and lower die holder (3) on pedestal (1), feature It is：Lower die holder (3) and upper die holder (2) are respectively equipped with support rod (4) and balladeur train (5), and support rod (4) leads to respectively with balladeur train (5) It crosses the first slide assemblies and the second slide assemblies is slidably connected at along the vertical direction on pedestal (1)；Support rod (4) is equipped with first Linear gear rack is rotatably connected on pedestal (1) for the first gear (6) with first straight line rack gear engaged transmission, and pedestal (1) is logical It crosses guide pad (7) to slidably connect stopper rod (8), stopper rod (8) is equipped with for the second straight line with first gear (6) engaged transmission Rack gear；Pedestal (1) is connected with valve seat (10) by bracket (9), and stopper rod (8) is slidably connected at valve seat (10) one end, valve seat (10) the other end is equipped with the first oil inlet (11), is successively arranged confession from stopper rod (8) to the first oil inlet (11) on valve seat (10) The first cavity (12), the second cavity (13) and the third cavity (14) of running of hydraulic power oil, the first cavity (12) and the second cavity (13) it is connected to by transition runner (15), the first cavity (12) internal one end is located on stopper rod (8) is equipped with and be used for and transition runner (15) first piston (16) cooperated；Second cavity (13) is connected to third cavity (14) by cutoff hole (17), valve seat (10) It is rotatably connected to the valve plate (18) for being connected to or being truncated the second cavity (13) and third cavity (14) in cutoff hole (17) position, Valve plate (18) is with valve seat (10) by pulling component to connect；It is fuel-displaced that first is equipped between third cavity (14) and the first cavity (12) It manages (19), the first flowline (19) is equipped with the valve (47) for opening or closing the first flowline (19)；Pedestal (1) is equipped with oil Case (20), the first cavity (12) are connected to by the second flowline (21) with fuel tank (20)；Pedestal (1) is equipped with constant displacement pump (22), Constant displacement pump (22) input terminal is connected to fuel tank (20), and constant displacement pump (22) output end passes through the on oil inlet pipe (23) and valve seat (10) One oil inlet (11) connection；Valve seat (10) is provided with cylinder (24) on third cavity (14) side wall, and cylinder (24) lower end is set There is the second oil inlet (25) for being connected to third cavity (14), slidably connects mandril (26), mandril in cylinder (24) (26) it is located at cylinder (24) internal one end and is equipped with second piston (27), the first promotion group is equipped between balladeur train (5) and mandril (26) Part is equipped between mandril (26) and pedestal (1) and is used to open the second pushing component of valve (47), and mandril (26) is successively with first Pushing component, the second pushing component contact work.

2. stamping die according to claim 1, it is characterised in that：Support rod (4) is by the first slide assemblies along vertical Direction, which is slidably connected on pedestal (1), to be referred to, pedestal (1) is equipped with claw (28), and support rod (4) is equipped with and is used for and claw (28) plush copper (29) for pushing against or being detached from, plush copper (29) are located at below claw (28)；Pedestal (1) is equipped with below support rod (4) Limited block (30) for pushing against or being detached from support rod (4) lower end, is equipped between support rod (4) lower end and pedestal (1) The first pressure spring (31) for pushing plush copper (29) to be resisted against on claw (28).

3. stamping die according to claim 1, it is characterised in that：Balladeur train (5) is by the second slide assemblies along vertical side Refer to being slidably connected on pedestal (1), balladeur train (5) is equipped with guide post (32), and pedestal (1) is equipped with and slides for guide post (32) Guide sleeve (33), guide post (32) upper end are equipped with annulus (34), and pedestal (1) is equipped with for pushing against or taking off with guide post (32) upper end From straight pin (35)；Annulus (34) is located between straight pin (35) and guide sleeve (33), and guide post is socketed with the second pressure spring on (32) (36), the second pressure spring (36) one end and annulus (34) push against, and the other end and guide sleeve (33) end push against.

4. stamping die according to claim 1, it is characterised in that：Pedestal (1) slidably connects plug by guide pad (7) Bar (8) refers to that pedestal (1) is equipped with guide pad (7), and stopper rod (8) is slidably connected on guide pad (7) by dovetail groove；Stopper rod (8) it is staggered with support rod (4), and stopper rod (8) direction of motion is vertical with support rod (4) direction of motion.

5. stamping die according to claim 1, it is characterised in that：First cavity (12) and the second cavity (13) passed through It crosses runner (15) connection to refer to, the first cavity (12) and the second cavity (13) intersection are equipped with the runner for running of hydraulic power oil, should Runner axial section shape is isosceles trapezoid, and the axial section shape of first piston (16) is matched with transition runner (15) cross sectional shape Isosceles trapezoid；Second cavity (13), which is connected to third cavity (14) by cutoff hole (17), to be referred to, the second cavity (13) inner circumferential Cinclides diameter is less than third cavity (14) internal perisporium aperture, forms step in the second cavity (13) and third cavity (14) intersection Face；Valve plate (18) refers to that valve plate (18) is rotatablely connected by the first hinge joint (37) with valve seat (10) by pulling component to connect Internal in third cavity (14), valve seat (10) is equipped with the first gag lever post (38) and the second gag lever post in third cavity (14) (39), the first gag lever post (38) and valve plate (18) push against or are detached from, the distance of the first gag lever post (38) to the first hinge joint (37) Less than the distance of the second gag lever post (39) to the first hinge joint (37)；It is equipped with and is used between valve plate (18) and the second gag lever post (39) Valve plate (18) are pulled to be resisted against the first tension spring (40) on the first gag lever post (38), the first tension spring (40) one end and valve plate (18) turn Dynamic connection, the other end and the second gag lever post (39) are rotatablely connected.

6. stamping die according to claim 1, it is characterised in that：It is equipped with inside cylinder (24) sliding for second piston (27) The 4th dynamic cavity (41), the second oil inlet (25) are connected to the 4th cavity (41), and cylinder (24) upper end is equipped with for mandril (26) The circular hole of sliding is socketed with for pushing second piston (27) to be resisted against the third pressure on the second oil inlet (25) on mandril (26) Spring (42).

7. stamping die according to claim 6, it is characterised in that：First is equipped between balladeur train (5) and mandril (26) to push away Dynamic component refers to that pedestal (1) is rotatably connected to the first wobble plate (44) by the second hinge joint (43), and balladeur train (5) is equipped with third Linear gear rack (45), the first wobble plate (44) one end and mandril (26) upper end push against or are detached from, and the other end is equipped with hinged with second Point (43) is first arc-shaped rack (46) in the center of circle, the first arc-shaped rack (46) and third linear gear rack (45) engaged transmission, the Three linear gear racks (45) are arranged in parallel with guide post (32).

8. stamping die according to claim 7, it is characterised in that：It is equipped between mandril (26) and pedestal (1) for beating Second pushing component of valve opening door (47) refers to that pedestal (1) is rotatably connected to the second wobble plate (49) by third hinge joint (48), Second wobble plate (49) one end and mandril (26) upper end push against or are detached from, and it is the center of circle that the other end, which is equipped with third hinge joint (48), Second arc-shaped rack (50) is rotatably connected on pedestal (1) for the second gear with the second arc-shaped rack (50) engaged transmission (51), valve (47) periphery wall is equipped with for the third gear with second gear (51) engaged transmission；Valve (47) outer wall is equipped with Switch block (52), pedestal (1) are equipped with the first blend stop (53) and the second blend stop (54) for pushing against with switch block (52) in valve peripheral, First blend stop (53) is spaced apart with the second blend stop (54) around valve (47) axis, and switch block (52) be located at the first blend stop (53) with In gap between second blend stop (54), the second wobble plate (49) is connect by limit assembly with pedestal (1).

9. stamping die according to claim 8, it is characterised in that：Mandril (26) successively with the first pushing component, second Pushing component contact work refers to that the second wobble plate (49) is located above the first wobble plate (44), and third hinge joint (48) is positioned at the Above two hinge joints (43), mandril (26) is in the gap between the second hinge joint (43) and third hinge joint (48), mandril (26) it is successively pushed against with the first wobble plate (44), the second wobble plate (49).

10. stamping die according to claim 8, it is characterised in that：Second wobble plate (49) passes through limit assembly and pedestal (1) connection refers to, pedestal (1) is equipped with the bayonet lock (55) for pushing against or being detached from the second wobble plate (49), pedestal (1) and second The second tension spring (56) for pulling the second wobble plate (49) to be resisted against on bayonet lock (55), the second tension spring are equipped between wobble plate (49) (56) it is rotatablely connected on one end and the second wobble plate (49) close to bayonet lock (55) one end, the other end and pedestal (1) are rotatablely connected.