CN207479315U

CN207479315U - Blanking die

Info

Publication number: CN207479315U
Application number: CN201721526156.9U
Authority: CN
Inventors: 黄拥军
Original assignee: Xiamen Wei Lin Electronic Technology Co Ltd
Current assignee: Xiamen Wei Lin Electronic Technology Co Ltd
Priority date: 2017-11-15
Filing date: 2017-11-15
Publication date: 2018-06-12
Anticipated expiration: 2027-11-15

Abstract

The utility model discloses a kind of blanking dies, including upper die component and lower mold assemblies, the upper die component includes upper mold seat, upper padding plate, upper clamp plate and at least one punch, the upper mold seat, upper padding plate and upper clamp plate are sequentially stacked together from top to bottom, the punch is vertically arranged and upper end is connect with the upper clamp plate, the lower mold assemblies include lower template, lower bolster, die holder and at least one blanking edge of a knife, the lower template, lower bolster and die holder are sequentially stacked together from top to bottom, the lower template is equipped with installation cavity in the punch location directly below, the blanking edge of a knife be arranged in the installation cavity and with the installation cavity clearance fit, gap filling adhesive between the installation cavity and the blanking edge of a knife.In assembling, the gap filling adhesive between the installation cavity and the blanking edge of a knife, when which is inserted into the blanking edge of a knife, the punch and the blanking edge of a knife can automatic centering, the concentricity both ensured, so as to improve the assembly precision of mold.

Description

Blanking die

Technical field

The utility model is related to a kind of blanking die, more particularly to a kind of high-precision blanking die.

Background technology

Burr more or less can all be generated using the edge of the element of sheet metal forming technology shaping, the size of burr is directly by mould Has the influence of precision.

Buzzer is a kind of electronics buzzer of integral structure, uses the circle of 0.05mm thickness on buzzer in large quantities Stainless steel substrates when the round stainless steel substrates to 0.05mm thickness are punched out blanking, if burr is excessive, may result in final production It carries very heavy noise during product sounding secretly, severely impacts the performance of product.Existing blanking die precision is unable to reach requirement, right Burr is excessive when the round stainless steel substrates of 0.05mm thickness are punched.

Utility model content

The utility model provides a kind of high-precision blanking die, and which overcome the deficiencies present in background technology.This reality It is with technical solution used by novel solution its technical problem：

Blanking die, including upper die component and lower mold assemblies, which can vertically move back and forth with respect to the lower mold assemblies, The upper die component includes upper mold seat, upper padding plate, upper clamp plate and at least one punch, and the upper mold seat, upper padding plate and upper clamp plate are by upper Be sequentially stacked down together, which is vertically arranged and upper end is connect with the upper clamp plate, the lower mold assemblies include lower template, Lower bolster, die holder and at least one blanking edge of a knife, the lower template, lower bolster and die holder are sequentially stacked from top to bottom one Rise, which is equipped with installation cavity in the punch location directly below, the blanking edge of a knife be arranged in the installation cavity and with this Installation cavity clearance fit, the gap filling adhesive between the installation cavity and the blanking edge of a knife.

Among one preferred embodiment：A step is formed on the outer surface of the punch lower end, the punch the step with The width of lower part is less than the punch in the width of the step above section, and the punch is in the width of the step above section It is equal with the interior hole width of the blanking edge of a knife.

Among one preferred embodiment：The punch the step with the width of lower part than the punch more than the step Partial width is 30-80 microns small.

Among one preferred embodiment：The reset mandril and resetting spring being arranged in the lower mold assemblies are further included, this is multiple Position spring pushes the reset mandril to stretch out the lower template upwards and is connected on the upper clamp plate.

Among one preferred embodiment：Inner guiding post and interior guide sleeve are further included, the upper end of the inner guiding post is connected to module on this On part, which is arranged on the lower mold assemblies, and the lower end of the inner guiding post is inserted vertically into the interior guide sleeve, the interior guide sleeve Steel ball bushing is equipped between the inner guiding post.

Among one preferred embodiment：The lower template is equipped with the mounting hole for placing the interior guide sleeve, and the interior guide sleeve is with being somebody's turn to do Mounting hole clearance fit, the gap filling adhesive between the interior guide sleeve and the mounting hole.

Among one preferred embodiment：Outer guiding post and outer bush are further included, the lower end of the outer guiding post is connected to the lower module On part, which is arranged on the upper die component, and the upper end of the outer guiding post is inserted vertically into the outer bush, the outer bush Steel ball bushing is equipped between the outer guiding post.

Among one preferred embodiment：The upper mold seat is equipped with the pilot hole for placing the outer bush, and the outer bush is with being somebody's turn to do Pilot hole clearance fit, the gap filling adhesive between the outer bush and the pilot hole.

Among one preferred embodiment：The adhesive is anaerobic adhesive.

Among one preferred embodiment：More limited posts, the top surface of the limited post and the blanking knife are equipped in the lower mold assemblies The top surface of mouth is higher by the lower template and the two flushes, and further includes stripper, which is supported on the limited post, this is unloaded Flitch is equipped with the relief hole passed through for the punch, and the bottom surface of the stripper is equipped with punishment in advance groove.

Compared with background technology, it has the following advantages that the technical program：

1. the blanking edge of a knife and the installation cavity clearance fit in the lower template, in assembling, the installation cavity and the blanking knife Gap filling adhesive between mouthful, when which is inserted into the blanking edge of a knife, which can be automatically right with the blanking edge of a knife In, the concentricity that both ensures, so as to improve the assembly precision of mold.

It, can during assembling 2. the punch is equal with the interior hole width of the blanking edge of a knife in the width of the step above section Farthest to ensure that the punch and the blanking edge of a knife are coaxial.

3. the resetting spring pushes the reset mandril to stretch out the lower template upwards and is connected on the upper clamp plate, multiple using this Position spring and reset mandril push the upper die component uplink to reset, other external force is avoided to cause to impact to upper die component, make the punching Head keeps coaxial with the blanking edge of a knife.

4. being equipped with steel ball bushing between the interior guide sleeve and the inner guiding post, steel ball is equipped between the outer bush and the outer guiding post and is served as a contrast Set, the upper die component and lower mold assemblies relative motion are more stablized.Particularly, between the interior guide sleeve and the mounting hole of the lower template Gap filling adhesive, the gap filling adhesive between the outer bush and the pilot hole of the upper mold seat can make outer bush With the outer guiding post automatic centering, interior guide sleeve and the inner guiding post automatic centering, precision is improved.

Description of the drawings

The utility model is described in further detail with reference to the accompanying drawings and examples.

Fig. 1 depicts the schematic cross-sectional view of the utility model blanking die transversely.

Fig. 2 depicts the schematic cross-sectional view of the utility model blanking die along longitudinal direction.

Fig. 3 depicts the enlarged diagram of the punch in stepped locations on the utility model blanking die edge.

Specific embodiment

Please refer to Fig. 1 to Fig. 3, the blanking die of the utility model, for being punched out to plank, including 10 He of upper die component Lower mold assemblies 20, the upper die component 10 can vertically be moved back and forth with respect to the lower mold assemblies 20.The upper die component 10 includes upper mold seat 12nd, upper padding plate 14, upper clamp plate 16 and at least one punch 18, the upper mold seat 12, upper padding plate 14 and upper clamp plate 16 from top to bottom according to Secondary to stack together, which is vertically arranged and upper end is connect with the upper clamp plate 16.The lower mold assemblies 20 include lower template 22nd, lower bolster 24, die holder 26 and at least one blanking edge of a knife 28, the lower template 22, lower bolster 24 and die holder 26 on toward Under be sequentially stacked together.The lower template 22 is equipped with installation cavity in 18 location directly below of punch, which sets It puts in the installation cavity and with the installation cavity clearance fit, the gap filling bonding between the installation cavity and the blanking edge of a knife 28 Agent.

A step 182 is formed on the outer surface of 18 lower end of punch, the punch 18 is in the step 182 with lower part Width is less than width of the punch 18 in 182 above section of step, it is preferable that the punch is in the step with lower part Width is 30-80 microns smaller in the width of the step above section than the punch.The punch 18 is in 182 above section of step Width it is equal with the interior hole width of the blanking edge of a knife 28.

The reset mandril 30 being arranged in the lower mold assemblies 20 and resetting spring 40 are further included, which pushes The reset mandril 30 stretches out the lower template 22 and is connected on the upper clamp plate 16 upwards.The elastic force of the resetting spring 40 can push this Upper die component 10 moves up reset.

Inner guiding post 50 and interior guide sleeve 60 are further included, the upper end of the inner guiding post 50 is connected on the upper die component 10, this is interior Guide sleeve 60 is arranged on the lower mold assemblies 20, and the lower end of the inner guiding post 50 is inserted vertically into the interior guide sleeve 60, the interior guide sleeve Steel ball bushing 62 is equipped between 60 and the inner guiding post 50.The lower template 22 is equipped with the mounting hole for placing the interior guide sleeve 60, The interior guide sleeve 60 and the mounting hole clearance fit, the gap filling adhesive between the interior guide sleeve 60 and the mounting hole.

Outer guiding post 70 and outer bush 80 are further included, the lower end of the outer guiding post 70 is connected on the lower mold assemblies 20, this is outer Guide sleeve 80 is arranged on the upper die component 10, and the upper end of the outer guiding post 70 is inserted vertically into the outer bush 80, the outer bush Steel ball bushing 82 is equipped between 80 and the outer guiding post 70.The upper mold seat 10 is equipped with the pilot hole for placing the outer bush 80, The outer bush 80 and the pilot hole clearance fit, the gap filling adhesive between the outer bush 80 and the pilot hole.

Preferably, described adhesive uses anaerobic adhesive, particularly 680 anaerobic adhesives.

More limited posts 21 are equipped in the lower mold assemblies 20, the top surface of the limited post 21 and the top surface of the blanking edge of a knife 28 are equal It is higher by the lower template 22 and the two flushes.Stripper 90 is further included, which is supported on the limited post 21.The discharging Plate 90 is equipped with the relief hole passed through for the punch 18, and the bottom surface of the stripper 90 is equipped with punishment in advance groove, treats that the plank of punching can It is placed in the punishment in advance groove.

The above, only the utility model preferred embodiment, therefore the utility model implementation cannot be limited according to this It is new all should still to belong to this practicality for range, i.e., the equivalent changes and modifications made according to the utility model patent range and description In the range of type covers.

Claims

It, should 1. blanking die, including upper die component and lower mold assemblies, which can vertically move back and forth with respect to the lower mold assemblies Upper die component include upper mold seat, upper padding plate, upper clamp plate and at least one punch, the upper mold seat, upper padding plate and upper clamp plate on toward Under be sequentially stacked together, which is vertically arranged and upper end is connect with the upper clamp plate, the lower mold assemblies include lower template, under Backing plate, die holder and at least one blanking edge of a knife, the lower template, lower bolster and die holder are sequentially stacked together from top to bottom, It is characterized in that：The lower template is equipped with installation cavity in the punch location directly below, which is arranged on the installation cavity It is interior and with the installation cavity clearance fit, the gap filling adhesive between the installation cavity and the blanking edge of a knife.
2. blanking die according to claim 1, it is characterised in that：A step is formed on the outer surface of the punch lower end, The punch is less than the punch in the width of the step above section in the step with the width of lower part, and the punch is described The width of step above section is equal with the interior hole width of the blanking edge of a knife.
3. blanking die according to claim 2, it is characterised in that：The punch is in the step with the width of lower part than being somebody's turn to do Punch is 30-80 microns small in the width of the step above section.
4. blanking die according to claim 1 or 2, it is characterised in that：It further includes and is arranged on answering in the lower mold assemblies Position mandril and resetting spring, the resetting spring push the reset mandril to stretch out the lower template upwards and are connected on the upper clamp plate.
5. blanking die according to claim 4, it is characterised in that：Further include inner guiding post and interior guide sleeve, the inner guiding post it is upper End is connected on the upper die component, which is arranged on the lower mold assemblies, and the lower end of the inner guiding post is inserted vertically into In the interior guide sleeve, steel ball bushing is equipped between the interior guide sleeve and the inner guiding post.
6. blanking die according to claim 5, it is characterised in that：The lower template is equipped with the peace for placing the interior guide sleeve Fill hole, the interior guide sleeve and the mounting hole clearance fit, the gap filling adhesive between the interior guide sleeve and the mounting hole.
7. blanking die according to claim 6, it is characterised in that：Outer guiding post and outer bush are further included, under the outer guiding post End is connected on the lower mold assemblies, which is arranged on the upper die component, and the upper end of the outer guiding post is inserted vertically into In the outer bush, steel ball bushing is equipped between the outer bush and the outer guiding post.
8. blanking die according to claim 7, it is characterised in that：The upper mold seat is equipped with the dress for placing the outer bush Distribution, the outer bush and the pilot hole clearance fit, the gap filling adhesive between the outer bush and the pilot hole.
9. according to the blanking die described in claim 1 or 6 or 8, it is characterised in that：The adhesive is anaerobic adhesive.
10. blanking die according to claim 1, it is characterised in that：More limited posts, the limiting are equipped in the lower mold assemblies The top surface of the top surface of column and the blanking edge of a knife is higher by the lower template and the two flushes, and further includes stripper, the stripper branch On the limited post, which is equipped with the relief hole passed through for the punch for support, and the bottom surface of the stripper is equipped with punishment in advance groove.