CN217597279U - Punch forming die for double-sided film-attached precision parts - Google Patents

Abstract

The utility model discloses a two-sided attaches membrane precision part stamping forming mould, include upper die base, upper padding plate, punch holder, overhead gage, take off flitch, lower bolster, die holder, take off material spring, unloading drift, die, plastic kicking block, release link, the cushion that resets, reset spring. The blanking punch is fixed on the upper clamp plate, the lower end of the blanking punch extends to the female die, the female die is fixed on the lower template, the shaping top block is movably sleeved in the female die, the bottom surface of the shaping top block is pressed on the top surface of the reset cushion block, the reset cushion block is movably sleeved in the lower base plate, the reset rod is movably installed in the lower template, and the lower end of the reset rod is pressed against the reset cushion block. Because the utility model discloses be equipped with the closed angle on the unloading drift, form the depressed area at unloading drift bottom surface middle part, this depressed area can let the gum escape the position as keeping away the vacancy, and the blanking in-process, last closed angle on the unloading drift can with the cooperation of lower closed angle on the die, can avoid the deformation of precision part, and the precision of product is high.

Description

Punch forming die for double-sided film-attached precision parts

Technical Field

The utility model relates to a stamping die especially relates to a two-sided attaches membrane precision part stamping forming mould.

Background

Stamping dies are a special piece of tooling for processing materials (metal or non-metal) into parts in cold stamping processes. As shown in fig. 1, a precision part 100 with a double-sided film has a back adhesive 110 on its bottom surface, and during a blanking process, the back adhesive on the material tape is liable to cause deformation of the precision part 100, which affects product quality.

Disclosure of Invention

An object of the utility model is to provide a high two-sided membrane precision part stamping forming mould that attaches of product precision.

In order to achieve the above object, the technical solution of the present invention is:

the utility model relates to a double-sided film-attached precision part punch forming die, which comprises an upper die base, an upper backing plate, an upper clamping plate, an upper baffle, a stripper plate, a lower template, a lower backing plate, a lower die base, a stripper spring, a blanking punch, a female die, a shaping ejector block, a reset rod, a reset cushion block and a reset spring; the upper die holder, the upper backing plate and the upper clamping plate are sequentially fixed together, the upper baffle and the stripper plate are fixed together, the upper baffle is positioned under the upper clamping plate, the upper baffle and the stripper plate are movably sleeved in the middle of the guide pillar, the upper end of the guide pillar is fixed on the upper clamping plate, and the lower end of the guide pillar is movably sleeved with the guide sleeve fixed on the lower die plate; the lower template, the lower padding plate and the lower die base are fixed together in sequence; the upper end of unloading drift is fixed on the punch holder, the lower extreme of unloading drift passes the overhead gage, stretch to the die after taking off the flitch, the die is fixed on the lower bolster, plastic kicking block movable sleeve is put in the waste material hole of die, the bottom surface top pressure of plastic kicking block is at the cushion top surface that resets, the cushion movable sleeve that resets is put in the lower bolster, reset spring sets up in the die holder, reset spring's both ends are pushed up respectively and are leaned on cushion and die holder that resets, release link movable mounting is in the lower bolster, the upper end of release link is worn out the lower bolster top surface and is leaned on with the material area top, be used for the jack-up material area, the lower extreme top of release link is leaned on the cushion that resets.

The outer edge of the bottom surface of the blanking punch is provided with an upper sharp corner which surrounds the whole circumference downwards, and the sharp corner forms an upper cutter edge; the middle part of the female die is provided with a through hole, the upper part of the through hole is a punching hole, the lower part of the through hole is a waste hole, the opening part of the punching hole is provided with a lower sharp corner which surrounds the whole circumference upwards, the lower sharp corner forms a lower cutter edge, and the upper sharp corner on the blanking punch is matched with the lower sharp corner on the female die.

The angle of an upper sharp corner on the blanking punch is 50 degrees; the angle of the lower sharp corner on the female die is 40 degrees.

The utility model also comprises a guide punch, a guide pin, a floating guide pin and a floating spring; the upper end of the guide punch is fixed on the upper clamping plate, and the lower end of the guide punch penetrates through the upper baffle plate and the stripper plate and then extends to the material belt; the upper end of the guide pin is fixed on the stripper plate, and the lower end of the guide pin penetrates through the stripper plate and then extends to the material belt; the floating guide pin is movably sleeved in the lower template, the upper end of the floating guide pin penetrates out of the top surface of the lower template and extends to the material belt, the lower end of the floating guide pin abuts against a floating spring, and the floating spring is installed in the lower base plate and the lower die seat.

After the scheme is adopted, because the utility model discloses an upper die base, the upper padding plate, the punch holder, the overhead gage, take off the flitch, the lower bolster, the die holder, take off the material spring, the unloading drift, the die, the plastic kicking block, the release link, the cushion that resets, reset spring, be equipped with the closed angle on the unloading drift, form the depressed area at unloading drift bottom surface middle part, this depressed area can let the gum can escape the position as keeping away the vacancy, the blanking in-process, last closed angle on the unloading drift can with the cooperation of lower closed angle on the die, the deformation of precision parts can be avoided, the precision of product is high.

The invention will be further described with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a cross-sectional view of a precision part;

fig. 2 is a schematic diagram of the blanking state of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a schematic view of the mold opening state of the present invention.

Detailed Description

As shown in fig. 2-4, the utility model relates to a two-sided attaches membrane precision part stamping forming mould, including upper die base 1, upper padding plate 2, punch holder 3, upper baffle 4, take off flitch 5, lower bolster 6, lower bolster 7, die holder 8, take off material spring 9, unloading drift 10, die 11, plastic kicking block 12, release link 13, reset cushion 14, reset spring 15, guide towards 16, lead positive round pin 17, the positive round pin 18 of buoyancy lift, buoyancy lift spring 19, guide pillar 20, guide pin bushing 21.

The upper die holder 1, the upper backing plate 2 and the upper clamping plate 3 are sequentially fixed together, the upper baffle 4 and the stripper plate 5 are fixed together, the upper baffle 4 is positioned under the upper clamping plate 3, the upper baffle 3 and the stripper plate 4 are movably sleeved in the middle of the guide pillar 20, the upper end of the guide pillar 20 is fixed on the upper clamping plate 3, and the lower end of the guide pillar 20 is movably sleeved with the guide sleeve 21 fixed on the lower die plate 6; the lower template 6, the lower backing plate 7 and the lower die holder 8 are fixed together in sequence; the upper end of the blanking punch 10 is fixed on the upper clamp plate 3, the lower end of the blanking punch 10 penetrates through the upper baffle plate 4 and the stripper plate 5 and then extends to the female die 11, the female die 11 is fixed on the lower die plate 6, the shaping ejector block 12 is movably sleeved in a waste hole of the female die 11, the bottom surface of the shaping ejector block 12 is pressed against the top surface of the reset cushion block 14, the reset cushion block 14 is movably sleeved in the lower backing plate 7, the reset spring 14 is arranged in the lower die base 8, two ends of the reset spring 14 respectively abut against the reset cushion block 14 and the lower die base 8, the reset rod 13 is movably installed in the lower die plate 6, the upper end of the reset rod 13 penetrates out of the top surface of the lower die plate 6 and abuts against the material belt 200 and is used for jacking up the material belt 200, and the lower end of the reset rod 13 abuts against the reset cushion block 14. The upper end of the guide punch 16 is fixed on the upper clamping plate 3, and the lower end of the guide punch 16 penetrates through the upper baffle 4 and the stripper plate 5 and then extends to the material belt 200; the upper end of the pilot pin 17 is fixed on the stripper plate 5, and the lower end of the pilot pin 17 passes through the stripper plate 5 and then extends to the material belt 200; the floating guide pin 18 is movably sleeved in the lower template 6, the upper end of the floating guide pin 18 penetrates through the top surface of the lower template 6 and extends to the material belt 200, the lower end of the floating guide pin 18 abuts against a floating spring 19, and the floating spring 19 is installed in the lower backing plate 7 and the lower die base 8.

The outer edge of the bottom surface of the blanking punch 10 is provided with an upper sharp corner 101 which surrounds the whole circumference downwards, the sharp corner 101 forms an upper cutter edge, the middle part of the bottom surface of the blanking punch 10 forms a concave area which can be used as a vacancy-avoiding position to allow gum to escape; the middle part of the female die 11 is provided with a through hole 111, the upper part of the through hole 111 is a punching hole, the lower part of the through hole 111 is a waste hole, the opening part of the punching hole is provided with a lower sharp corner 112 which surrounds the whole circumference upwards, the lower sharp corner 112 forms a lower cutting knife edge, the strength of the annular lower cutting knife edge is higher, and the upper sharp corner 101 on the blanking punch 10 is matched with the lower sharp corner 112 on the female die 11. In this embodiment, the angle of the upper sharp corner 101 on the blanking punch is 50 °; the angle of the lower sharp corner 112 on the female die 11 is 40 °.

The utility model discloses a theory of operation:

because the utility model discloses be equipped with closed angle 101 on unloading drift 10, form the depressed area at unloading drift 10 bottom surface middle part, this depressed area can let the gum 110 (as shown in fig. 1) of precision parts 100 can escape the position as keeping away the vacancy, the blanking in-process, the slider is down, when taking off flitch 5 and contacting release link 13, under the pressure effect of taking off flitch 5, plastic kicking block 12 downstream together, play the effect of protection unloading drift 10, the deformation of precision parts can have been avoided in last closed angle 101 on the unloading drift 10 and the cooperation of lower closed angle 112 on the die 11.

The above description is only a preferred embodiment of the present invention, and therefore the scope of the present invention should not be limited thereby, and all equivalent changes and modifications made within the scope of the claims and the specification should be considered within the scope of the present invention.

Claims (4)

1. The utility model provides a two-sided membrane precision part stamping forming mould which characterized in that attaches: the device comprises an upper die base, an upper backing plate, an upper clamping plate, an upper baffle, a stripping plate, a lower template, a lower backing plate, a lower die base, a stripping spring, a blanking punch, a female die, a shaping ejector block, a reset rod, a reset cushion block and a reset spring;

the upper die holder, the upper padding plate and the upper clamping plate are sequentially fixed together, the upper baffle and the stripper plate are fixed together, the upper baffle is positioned under the upper clamping plate, the upper baffle and the stripper plate are movably sleeved in the middle of the guide pillar, the upper end of the guide pillar is fixed on the upper clamping plate, and the lower end of the guide pillar is movably sleeved with the guide sleeve fixed on the lower die plate; the lower template, the lower padding plate and the lower die base are fixed together in sequence; the upper end of unloading drift is fixed on the punch holder, the lower extreme of unloading drift passes the overhead gage, stretch to the die after taking off the flitch, the die is fixed on the lower bolster, plastic kicking block activity cover is put in the waste material hole of die, the bottom surface top pressure of plastic kicking block is at the cushion top surface that resets, the cushion activity cover that resets is put in the lower bolster, reset spring sets up in the die holder, reset spring's both ends are pushed up respectively and are leaned on cushion and the die holder that resets, release link movable mounting is in the lower bolster, the upper end of release link is worn out the lower bolster top surface and is leaned on with the material area top, be used for jack-up the material area, the lower extreme top of release link is leaned on the cushion that resets.

2. The double-sided film-coated precision part punch forming die as claimed in claim 1, wherein: the outer edge of the bottom surface of the blanking punch is provided with an upper sharp corner which surrounds the whole circumference downwards, and the sharp corner forms an upper cutter edge; the middle part of the female die is provided with a through hole, the upper part of the through hole is a punching hole, the lower part of the through hole is a waste hole, the opening part of the punching hole is provided with a lower sharp corner which surrounds the whole circumference upwards, the lower sharp corner forms a lower cutter edge, and the upper sharp corner on the blanking punch is matched with the lower sharp corner on the female die.

3. The double-sided film-coated precision part punch forming die as claimed in claim 1, wherein: the angle of an upper sharp corner on the blanking punch is 50 degrees; the angle of the lower sharp corner on the female die is 40 degrees.

4. The punch forming die for the double-sided film-coated precision part as claimed in claim 1, wherein: the device also comprises a guide punch, a guide pin, a floating guide pin and a floating spring; the upper end of the guide punch is fixed on the upper clamping plate, and the lower end of the guide punch penetrates through the upper baffle and the stripper plate and then extends to the material belt; the upper end of the guide pin is fixed on the stripper plate, and the lower end of the guide pin penetrates through the stripper plate and then extends to the material belt; the floating guide pin is movably sleeved in the lower template, the upper end of the floating guide pin penetrates out of the top surface of the lower template and extends to the material belt, the lower end of the floating guide pin abuts against a floating spring, and the floating spring is installed in the lower base plate and the lower die seat.

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