CN103433376A

CN103433376A - Independent switching mechanism for stamping die

Info

Publication number: CN103433376A
Application number: CN2013103046483A
Authority: CN
Inventors: 漆力; 陈能军; 梁成林
Original assignee: SHANGHAI HUAZHUANG MOULD CO Ltd
Current assignee: SHANGHAI HUAZHUANG MOULD CO Ltd
Priority date: 2013-07-19
Filing date: 2013-07-19
Publication date: 2013-12-11

Abstract

The invention relates to the field of the stamping die, in particular to a switching mechanism used for the stamping die. The switching mechanism used for the stamping die comprises a knife block seat, a knife block, a driving guide plate, a driving seat, a guide plate and a nitrogen spring, wherein the driving guide plate is provided with a slope which can convert the horizontal acting force into the vertical acting force under the action of force; the nitrogen spring can be used for lifting the knife block seat; a guide pillar arranged on the knife block seat and a guide sleeve arranged on an upper die holder are guided to guarantee the working precision; the driving seat and the upper die holder are guided by the guide plate; the travel spacing of the knife block seat is jointly restricted by the guide plate and a stop screw; the lowering travel of the knife block seat is controlled by the stop screw; a round block on the tail part of the guide pillar is of a safety stop block used for preventing the knife block seat from falling and used for fixing the guide pillar; the square block on the head part of the guide pillar is a return nitrogen spring stop dog; the driving force of the driving seat is provided by a cylinder; the back and forth movement of the driving seat is controlled by a spacing stop dog. According to the independent switching mechanism for the stamping die, two stamping states can be quickly switched in the same die to finish two parts.

Description

A kind of stamping die stand alone type switching mechanism

technical field

The present invention relates to the diel field, particularly a kind of switch mechanism for punching die, switch to two kinds of punching press states in available same secondary mould fast, completes two kinds of products.

background technology

In recent years, along with the automobile industry develop rapidly, more and more different styles but have a lot of similar vehicles towards mass consumption person; Increasing in view of cost, nowadays, not only to the product requirement two states of similar top cover, as long as meet the different automobile types assembling, other product also needs to meet two kinds and even three kinds of states; The utilization of switching mechanism and innovation, become the necessary Consideration of Design of Dies; Also become the effective way that improves enterprise's Tool and Die Technology level and competitiveness.

Traditional top cover skylight switching mechanism, mainly be hidden in holding pad, completes the inner processing of product.But its defect is its application is confined to narrow and small inner space, need to rely on auxiliary holding pad.Assembling and setting is also comparatively complicated.

summary of the invention

The object of the present invention is to provide the free-standing switching mechanism of a kind of stamping die, can not increase in the situation of jig frequency not increasing the mould operation, complete two kinds of product states.This stand alone type switching mechanism, targeting part independently, independently backhaul mode, freely select its building block, is can apply in more products processing compared to traditional switching mechanism.

Concrete technical scheme of the present invention is: a kind of stamping die stand alone type switching mechanism comprises: the cutter block; The cutter piece; Drive guide plate, inclined-plane is arranged on this guide plate, and it can make horizontal applied force be converted into vertical under the effect of power; Drive seat; Guide plate; The nitrogen spring that can raise the cutter block; The cutter block arranges guide pillar, with the guide pin bushing of upper bolster setting, leads to guarantee operating accuracy; Drive between seat and upper bolster and lead with guide plate; Cutter block stroke limit is restricted jointly by guide plate and stop screw; Stop screw is controlled the descending stroke of cutter block; The nahlock of guide pillar afterbody is to prevent that the cutter block from coming off and the fixing safe spacing piece of guide pillar; The square block of guide pillar head is backhaul nitrogen spring block; Drive the driving force of seat to be provided by cylinder, drive seat back and forth movement stroke to need positive stop to control.

The driving force of above-mentioned driving seat is provided by cylinder, but cylinder is the double-acting cylinder of back and forth movement.

The backhaul flexible member of above-mentioned use is nitrogen spring; When meeting required backhaul power, can use other elastomer.

The restoring force of above-mentioned cutter block is provided by nitrogen spring; The power of nitrogen spring is enough lifted cutter block and other top parts simultaneously; The cutter block drives in working order the time seat spigot surface to touch extremely.

Cutter piece on above-mentioned cutter block holding pad before work provides enough pressure to compress tablet.

Above-mentioned guide pillar is with spacing assembly; Stroke limit is that movable clamp is used together with caging bolt.

The invention has the beneficial effects as follows: utilize the free-standing switching mechanism of stamping die of the present invention, can complete the switching of two states at same order mould, the driving force that does not need form removal directly just can provide by cylinder when punching press is switched.

the accompanying drawing explanation

Fig. 1 is that stamping die of the present invention carries out the working state figure of punching press to product with free-standing switching mechanism.

Fig. 2 is that stamping die of the present invention does not carry out the working state figure of punching press with free-standing switching mechanism to part.

Fig. 3 is the cutter block guide pillar of free-standing switching mechanism and the partial sectional view of upper bolster guide pin bushing (A condition product) for stamping die of the present invention.

Fig. 4 is the cutter block guide pillar of free-standing switching mechanism and the partial sectional view of upper bolster guide pin bushing (B state product) for stamping die of the present invention.

Fig. 5 is that stamping die of the present invention is with driving the plane of seat in free-standing switching mechanism.

In figure: 1. cutter block; 2. cutter piece; 3. plug-in type guide plate; 4. drive seat; 5. pulling block; 6. guide plate A; 7. guide plate B; 8. clamp; 9. caging bolt; 10. nitrogen spring A; 11. fixed block A; 12. cushion block; 13. screw; 14. baffle plate; 15. nitrogen spring B; 16. guide pin bushing; 17. guide pillar; 18. fixed block B; 19. cylinder fixed head; 20. cylinder; 21. fixed block C; 22. product A condition limited block; 23. product B state limited block; 24. upper bolster; 30. product state A; 31. product state B.

the specific embodiment

Describe working condition of the present invention in detail below in conjunction with accompanying drawing.

Fig. 1 is that this mechanism carries out the working state figure of punching press to product, and its duty is off working state transformation as shown in Figure 2; By to the 20 afterbody inflations of 2 cylinders, as shown in Figure 5, allow cylinder generation thrust forward promote to drive seat 4 to slide to the right; Allow be arranged on the plug-in type guide plate 3 that plug-in type guide plate 3 contacts that drive seat 4 are arranged on cutter block 1 it is moved downward, because two contact-making surfaces are inclined-planes, under the effect of thrust to the right, cutter block 1 can progressively move downward; Until the inclined-plane stroke of two plug-in type guide plates finishes; At this moment cutter block 1 all moves to bottom dead centre with the cutter piece 2 be arranged on the cutter block; As shown in Figure 3 now the baffle plate 14 on guide pillar 17 by backhaul nitrogen spring B15 compression and and guide pillar 17 fixed block B18 form spacing safety effect; Now be arranged on spring in upper bolster 24 in pressured state; Drive seat 4 to continue to move right under cylinder 20 thrusts; Because plug-in type guide plate 3 is comprised of inclined-plane and plane, after the inclined-plane stroke is covered, even if drive seat 4 to continue to move right, can not increase the downward stroke of cutter block 1 yet; Be subject to drive seat 4 thrust two to the right to drive the horizontal slide guide face wedging amount of guide plate 3 increasing; Until cylinder 20 is covered stroke; Drive seat 4 stop motions; Now the pulling block 5 on driving seat 4, in the rightmost side, keeps this state just can produce, as shown in Figure 3, and A condition product 30.When switching mechanism keeps this kind of state, can carry out punching deburring, hole flanging, shaping, otch, flange etc. to product; Cutter piece 2 holding pad before work need to provide enough pressure-plate-forces to product.

Fig. 2 is that this mechanism does not carry out the working state figure of punching press to product, and its duty is duty transformation as shown in Figure 1; By 2 double-acting cylinders, 20 tops are inflated, as shown in Figure 5, the pulling force that allows cylinder 20 produce backward pulls the fixed block C21 be arranged on driving seat 4 to slide left, when two plug-in type guide plates 3 disengaging planareas start to walk inclined-plane, now backhaul nitrogen spring B15 will be fixed on baffle plate 14 jack-up on guide pillar 17 as shown in Figure 4, because guide pillar 17 is to be fixed on cutter block 1 to make progress under the effect of restoring force being subject to spring, cutter block 1 can progressively move upward.After covering horizontal throw, be subject to cylinder 20 pulling force left force the pulling block 5 contact clamps 8 on driving seat 4 and nitrogen spring A10 compression is moved to the left together; Fixed plate A 11 is for fixed nitrogen air spring A10; Because cutter block 1 caging bolt 9 that moves upward also starts to move up, when arriving default stroke, clamp 8 just in time is stuck in the position of caging bolt 9, form the safe spacing of tool setting block 1, now the insertion guide plate 3 of cutter block 1 bottom just in time touches extremely with driving the guide plate 6 on seat 4, and cylinder also stop motion is controlled by limited block 23; Keep this state just can produce, as shown in Figure 4, B state part 31.

Claims

1. a stamping die stand alone type switching mechanism, is characterized in that, comprising: the cutter block; The cutter piece; Drive guide plate, described driving guide plate is provided with and under the effect of power, can makes horizontal applied force be converted into the inclined-plane of vertical; Drive seat; Guide plate; The nitrogen spring that can raise the cutter block; The cutter block arranges guide pillar, with the guide pin bushing of upper bolster setting, leads to guarantee operating accuracy; Drive between seat and upper bolster and lead with guide plate; Cutter block stroke limit is restricted jointly by guide plate and stop screw; Stop screw is controlled the descending stroke of cutter block; The nahlock of guide pillar afterbody is to prevent that the cutter block from coming off and the fixing safe spacing piece of guide pillar; The square block of guide pillar head is backhaul nitrogen spring block; Drive the driving force of seat to be provided by cylinder, drive seat back and forth movement stroke to need positive stop to control.

2. a kind of stamping die stand alone type switching mechanism according to claim 1, it is characterized in that, but described cylinder is the double-acting cylinder of back and forth movement.

3. a kind of stamping die stand alone type switching mechanism according to claim 1, is characterized in that, the restoring force of described cutter block is provided by nitrogen spring; The power of nitrogen spring is enough lifted cutter block and other top parts simultaneously; The cutter block drives in working order the time seat spigot surface to touch extremely.

4. a kind of stamping die stand alone type switching mechanism according to claim 1, is characterized in that, the holding pad before work of the cutter piece on described cutter block provides enough pressure to compress tablet.

5. a kind of stamping die stand alone type switching mechanism according to claim 1, is characterized in that, described guide pillar is with spacing assembly; Stroke limit is that movable clamp is used together with caging bolt.