CN210208306U

CN210208306U - Material stamping die

Info

Publication number: CN210208306U
Application number: CN201920683490.8U
Authority: CN
Inventors: Guangwei Cao; 曹光伟; Fang Zheng; 郑芳
Original assignee: Ningbo Kangdiprui Mould Technology Co Ltd
Current assignee: Ningbo Kangdiprui Mould Technology Co Ltd
Priority date: 2019-05-14
Filing date: 2019-05-14
Publication date: 2020-03-31
Anticipated expiration: 2029-05-14

Abstract

The utility model discloses a material stamping die, its technical scheme main points are including the last mould and the lower mould of matcing each other, the lower mould is provided with from supreme die holder, well backing plate and the die board that connects gradually down, the die board be provided with a plurality of blank pressing terrace dies and with corresponding the die groove that the blank pressing terrace die matches, the die inslot is provided with assorted slider, the slider be provided with the terrace die groove that the blank pressing terrace die matches and the elastic component that one end and die holder are connected work as when going up mould and lower mould separation, the top of slider is followed the upside of die board is outside protruding. The utility model discloses have when last mould and lower mould separation, the slider that matches with corresponding blank pressing terrace die moves outside the die board under the elastic restoring force effect of elastic component, and then reaches the purpose that the drive effectively separated through the material of blank pressing terrace die deformation and blank pressing terrace die, avoids punching press material deformation when the drawing of patterns and influences the production quality of punching press material.

Description

Material stamping die

Technical Field

The utility model relates to a stamping die, more specifically say that it relates to a material stamping die that says so.

Background

The lead frame is used as a chip carrier of an integrated circuit, is a key structural member for realizing the electrical connection between a leading-out end of an internal circuit of a chip and an external lead by means of bonding materials such as gold wires, aluminum wires, copper wires and the like to form an electrical circuit, plays a role of a bridge connected with an external lead, needs to be used in most semiconductor integrated blocks and is an important basic material in the electronic information industry.

Chinese patent No. CN205660051U discloses a stamping die for manufacturing a semiconductor lead frame, which comprises an upper die and a lower die, the upper die comprises an upper die base, an upper backing plate, an upper clamping plate, a stop plate and a stripper plate, the lower die comprises a lower die plate, a lower backing plate and a lower die base, the upper backing plate is fixed on the upper die base, the upper clamping plate is fixed on the upper backing plate, the stop plate is fixed on the stripper plate, the lower backing plate is fixed on the lower die base, the lower die plate is fixed on the lower backing plate, the upper clamping plate is sequentially provided with a frame rough cutting convex die, a pin rough cutting convex die, a frame rough forming convex die and a pin bending convex die from the feeding end, the stripper plate is sequentially provided with inserts corresponding to all the male dies on the upper clamping plate from the feeding end, and a frame rough forming female die and a pin bending female die are arranged on the lower template at the positions corresponding to the frame rough forming male die and the pin bending male die.

But this stamping die is when taking off the material through taking off the flitch from the corresponding income of the terrace die that the feed end set gradually on the flitch and on the punch holder to the lead frame, because the texture of bonding material such as gold wire, aluminium silk and copper wire is softer, and then the part that leads to the material to receive punching press deformation because of the laminating produces deformation when the material wholly breaks away from the lower mould at the part that the material received punching press deformation and the punching press part of terrace die, be difficult to reach the purpose of stable and effectively taking off the material, influence the production quality of punching press material, wait to improve.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a material stamping die, this material stamping die have effectively avoid punching press material deformation when the drawing of patterns and influence punching press material production quality's effect.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a material stamping die, includes the last mould and the lower mould that match each other, the lower mould is provided with from supreme die holder, well backing plate and the die board that connects gradually down, the die board be provided with a plurality of blank pressing terrace dies and with corresponding the die groove that the blank pressing terrace die matches, the die inslot is provided with assorted slider, the slider be provided with the terrace die groove that the blank pressing terrace die matches and the elastic component that one end and die holder are connected work as when going up mould and lower mould separation, the top of slider is followed the upside of die board is outside protruding.

By adopting the technical scheme, when the upper die and the lower die are closed, a material is punched between the upper die and the lower die, and the floating block is embedded into the concave die plate from the part protruding from the concave die plate, so that the elastic piece is compressed and forms elastic restoring force; correspondingly, when the upper die and the lower die are separated, the floating block matched with the corresponding edge pressing male die moves outwards towards the concave die plate under the action of the elastic restoring force of the elastic part, so that the aim of effectively separating the material deformed by the edge pressing male die from the edge pressing male die is fulfilled, and the influence on the production quality of the stamping material due to the deformation of the stamping material in the demolding process is avoided.

The utility model discloses further set up to: the elastic piece includes the fixing bolt who passes well backing plate and cavity die plate in proper order and top and slider bottom threaded connection, with the plug of die holder threaded connection and both ends respectively with the spring of fixing bolt head and plug butt, the die holder is provided with the confession the die holder hole that fixing bolt passed, the lower extreme in die holder hole is provided with the internal thread.

By adopting the technical scheme, when the upper die and the lower die are closed, the part of the floating block protruding from the inner part of the concave die plate is embedded into the concave die plate under the acting force of the upper die, so that the spring positioned between the head part of the fixed bolt and the plug is compressed and forms elastic restoring force; correspondingly, when the upper die and the lower die are separated, the spring matched with the corresponding floating block can drive the upper end of the floating block to penetrate out of the concave die plate through the elastic restoring force of the spring, so that the purpose of effectively separating the material deformed by the edge pressing male die from the edge pressing male die is achieved, the structure is simple, the effect of adjusting the elastic potential energy of the spring is achieved when the plug is connected with the internal thread of the lower end of the die seat hole in a matched mode, and the spring has good elastic driving force for the floating block.

The utility model discloses further set up to: be provided with the confession in the well backing plate the backing plate hole that fixing bolt passed, the diameter in backing plate hole is less than the diameter in die holder hole, be provided with in the die holder hole and cup joint the bolt cushion on the fixing bolt head, work as when going up mould and lower mould separation, the upside of bolt cushion with well backing plate downside butt.

Through adopting above-mentioned technical scheme, when compound die and separation motion are done to last mould and lower mould, the elastic restoring force of the spring of effectively avoiding being located the fixing bolt head downside makes the slider break away from the die cavity when promoting the fixing bolt motion, and then influences the stability of being connected between slider, blank pressing terrace die and the die cavity board, is showing the punching press production efficiency who promotes the material and the yields of punching press material.

The utility model discloses further set up to: the base plate hole is internally provided with a sleeve which is sleeved on the fixing bolt, and two ends of the sleeve are respectively abutted against the floating block and the bolt cushion block.

By adopting the technical scheme, the fixing bolt is effectively prevented from being worn in the middle cushion plate to influence the stable movement of the floating block, the effectiveness of demoulding of a stamping part of the stamping material in demoulding is further improved, and the production quality of the stamping material is improved.

The utility model discloses further set up to: the lower die seat is provided with a lower die seat, and the lower die seat is provided with a lower die seat.

Through adopting above-mentioned technical scheme, the cylinder block plays the top of drive blank pressing terrace die and protrudes from the die board or imbeds the effect in the die board, and then reaches the purpose that receives stamping forming or keeps the original state when the punching press through cylinder block control punching press material.

The utility model discloses further set up to: the punch die is characterized in that a cushion block groove matched with the position of the blank-pressing punch is formed in the punch cushion block, a fixed block bottom groove matched with the cushion block groove is formed in the bottom of the punch fixed block, the upper end of the blank-pressing punch penetrates through the fixed block bottom groove and then is inserted into the punch die groove, and the lower end of the blank-pressing punch is matched with the fixed block bottom groove and the cushion block groove and moves in the fixed block bottom groove and the cushion block groove.

Through adopting above-mentioned technical scheme, fixed block kerve and cushion groove play the effect of injecing the blank pressing terrace die and removing to reach the effect that is showing the stamping forming yields that promotes punching press material under the cooperation of terrace die groove is injecive.

The utility model discloses further set up to: chamfers are arranged at two ends of the upper side of the floating block along the moving direction of the material.

Through adopting above-mentioned technical scheme, when the slider did to reciprocate, the chamfer played and avoided forming the contact and lead to the effect of material deformation to removing or the material in stamping forming, was showing the yields that promotes punching press material processing production.

To sum up, the utility model discloses following beneficial effect has:

1. the floating blocks are arranged on the corresponding edge pressing convex dies to play a role in effectively removing the punched material from the parts of the corresponding edge pressing convex dies, so that the part of the punched material, which is subjected to punching deformation, is effectively prevented from being deformed when the whole material is separated from the lower die due to the fact that the part of the punched material is attached to the edge pressing convex dies;

2. the edge pressing convex die is controlled by the air cylinder seat to protrude from or be embedded into the concave die plate, so that the purpose of controlling the punching material to be punched and formed or to be kept in an original state during punching by the air cylinder seat is achieved.

Drawings

FIG. 1 is a schematic view showing an internal sectional structure of the present embodiment;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is a schematic top view of the present embodiment;

FIG. 4 is a schematic structural view of the slider of the present embodiment;

FIG. 5 is a schematic structural view of the punch fixing block of the embodiment;

fig. 6 is a schematic view of the structure of the punch pad of the present embodiment.

Description of reference numerals: 1. a lower die holder; 11. a die holder bore; 12. an internal thread; 13. plugging with a thread; 131. a spring; 14. a bolt cushion block; 141. fixing the bolt; 15. a sleeve; 2. a middle liner plate; 21. a gasket hole; 3. a cavity plate; 31. a die cavity; 4. a slider; 41. chamfering; 42. a male die groove; 5. a male die fixing block; 51. a fixed block bottom groove; 6. a male die cushion block; 61. a pad groove; 7. a side pressing male die; 8. a cylinder block.

Detailed Description

In order to make the technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings.

As shown in fig. 1, a material stamping die includes an upper die and a lower die which are matched with each other. The lower die comprises a lower die base 1, a middle backing plate 2 and a concave die plate 3 which are sequentially connected from bottom to top. The lower die holder 1, the middle cushion plate 2 and the concave die plate 3 are fixedly connected through bolts, and the connecting structure is stable and high in strength.

As shown in fig. 1, 2, and 4, a plurality of blank holding punches 7 that are matched with the upper die and punch-form the material, and a plurality of die grooves 31 that are matched with the corresponding blank holding punches 7 are provided in the cavity plate 3. The matched floating block 4 is arranged in the female die groove 31, the floating block 4 is provided with a male die groove 42 matched with the edge pressing male die 7 and an elastic part with one end connected with the lower die holder 1, and then the upper end of the edge pressing male die 7 is matched with the upper die after protruding from the upper side of the female die plate 3 and is used for punch forming of materials. Therefore, when the upper die and the lower die are closed and a material is punched, the part, protruding from the concave die plate 3, of the floating block 4 is embedded into the concave die plate 3, so that the elastic piece is compressed and forms elastic restoring force; correspondingly, when the upper die and the lower die are separated, the floating block 4 matched with the corresponding edge pressing convex die 7 moves outwards the concave die plate 3 under the action of the elastic restoring force of the elastic part, so that the aim of effectively separating the material part which is punched and formed by the edge pressing convex die 7 from the edge pressing convex die 7 is fulfilled, and the influence on the production quality of the stamping material due to the deformation of the stamping material during demolding is avoided. And the both ends of slider 4 upside along material moving direction all set to chamfer 41, and then when slider 4 did reciprocate, chamfer 41 played and avoided the effect that leads to material deformation to removing or material formation contact in stamping forming, is showing the yields that promotes punching press material processing production.

As shown in fig. 1 and 2, the elastic element includes a fixing bolt 141 sequentially passing through the middle pad 2 and the cavity plate 3 and having a top end in threaded connection with the bottom of the slider 4, a plug 13 in threaded connection with the lower die holder 1, and a spring 131 having two ends respectively abutting against the head of the fixing bolt 141 and the plug 13. A die holder hole 11 through which a fixing bolt 141 passes is formed in the lower die holder 1, an internal thread 12 which is matched with and in threaded connection with a plug 13 is formed at the lower end of the die holder hole 11, and when the upper die and the lower die are closed, the part of the floating block 4 which protrudes from the inside of the concave die plate 3 is embedded into the concave die plate 3 under the acting force of the upper die so that a spring 131 between the head of the fixing bolt 141 and the plug 13 is compressed and forms elastic restoring force; correspondingly, when the upper die and the lower die are separated, the spring 131 matched with the corresponding floating block 4 drives the upper end of the floating block 4 to penetrate out of the concave die plate 3 through the elastic restoring force of the spring 131, so that the aim of effectively separating the material deformed by the edge pressing male die 7 from the edge pressing male die 7 is fulfilled, the structure is simple, the effect of adjusting the elastic potential energy of the spring 131 is achieved when the plug 13 is in matched connection with the internal thread 12 at the lower end of the die holder hole 11, and the spring 131 has good elastic driving force for the floating block 4.

It should be mentioned that the middle mat plate 2 is provided therein with mat plate holes 21 through which the fixing bolts 141 pass. The diameter of the shim hole 21 is smaller than the diameter of the die seat hole 11. And a bolt pad 14 sleeved on the head of the fixing bolt 141 is arranged in the die holder hole 11. When going up mould and lower mould separation, spring 131 extends and upwards promotes fixing bolt 141, and then makes the upside and the 2 downside butts of well backing plate of bolt cushion 14, and then reach the elastic restoring force of spring 131 who effectively avoids being located fixing bolt 141 head downside and make slider 4 break away from die cavity 31 when promoting fixing bolt 141 motion, and then influence slider 4, the purpose of the stable connection between blank pressing terrace die 7 and the die cavity board 3, show the punching press production efficiency who promotes the material and the yields of punching press material. Meanwhile, the sleeve 15 fitted to the fixing bolt 141 is provided in the gasket hole 21. And the two ends of the sleeve 15 are respectively abutted against the floating block 4 and the bolt cushion block 14, so that the fixed bolt 141 is effectively prevented from being worn in the middle cushion plate 2 to influence the stable movement of the floating block 4, the demoulding effectiveness of a punching part of a punching material in demoulding is further improved, and the production quality of the punching material is improved.

As shown in fig. 2 and 3, a punch fixing block 5 is provided in the cavity 31, and is located below the slider 4 and connected to the blank-holding punch 7. The lower side of the male die fixing block 5 is provided with a male die cushion block 6, and the lower die holder 1 is provided with a cylinder seat 8 connected with a blank pressing male die 7. The cylinder seat 8 is arranged to drive the top end of the edge pressing convex die 7 to protrude from the concave die plate 3 or be embedded into the concave die plate 3, and then the purpose of controlling the punching material to be punched or kept in an original shape during punching is achieved through the cylinder seat 8.

It should be noted that, referring to fig. 4, 5 and 6, a cushion block groove 61 matched with the position of the blank-holding punch 7 is arranged on the punch cushion block 6, the size of the cushion block groove 61 is larger than that of the punch groove 42, and a fixing block bottom groove 51 matched with the cushion block groove 61 is arranged at the bottom of the punch fixing block 5. The upper end of the corresponding side pressing male die 7 penetrates through the fixed block bottom groove 51 and then is inserted into the male die groove 42, the lower end of the side pressing male die 7 is matched with the fixed block bottom groove 51 and the cushion block groove 61 and moves in the fixed block bottom groove 51 and the cushion block groove 61, the fixed block bottom groove 51 and the cushion block groove 61 are made to play a role in effectively limiting the movement of the side pressing male die 7, and the effect of remarkably improving the punching forming yield of the punching materials is achieved under the matching limitation of the male die groove 42.

The above is only the preferred embodiment of the present invention, the protection scope of the present invention is not limited to the above embodiments, but all the cases belong to the technical solution of the present invention under the thought all belong to the protection scope of the present invention. It should be noted that modifications and decorations, which would occur to those skilled in the art without departing from the principle of the present invention, should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides a material stamping die, includes the last mould and the lower mould that match each other, its characterized in that: the lower mould is provided with from supreme die holder (1), well backing plate (2) and the die board (3) that connect gradually down, die board (3) are provided with a plurality of blank pressing terrace die (7) and with corresponding die groove (31) that blank pressing terrace die (7) match, be provided with assorted slider (4) in die groove (31), slider (4) be provided with terrace die groove (42) and the elastic component that one end and die holder (1) are connected that blank pressing terrace die (7) match, work as when going up mould and lower mould separation, the top of slider (4) is followed the upside of die board (3) is outwards protruding.

2. A material stamping die according to claim 1, wherein: the elastic piece including pass in proper order backing plate (2) and die board (3) and the top with slider (4) bottom threaded connection's fixing bolt (141), with plug (13) and spring (131) that both ends respectively with fixing bolt (141) head and plug (13) butt of die holder (1) threaded connection, die holder (1) is provided with the confession die holder hole (11) that fixing bolt (141) passed, the lower extreme of die holder hole (11) is provided with internal thread (12).

3. A material stamping die according to claim 2, wherein: be provided with the confession in well backing plate (2) backing plate hole (21) that fixing bolt (141) passed, the diameter in backing plate hole (21) is less than the diameter of die holder hole (11), be provided with in die holder hole (11) and cup joint bolt cushion (14) on fixing bolt (141) head, work as when go up mould and lower mould separation, the upside of bolt cushion (14) with well backing plate (2) downside butt.

4. A material stamping die according to claim 3, wherein: and a sleeve (15) sleeved on the fixing bolt (141) is arranged in the gasket plate hole (21), and two ends of the sleeve (15) are respectively abutted against the floating block (4) and the bolt gasket (14).

5. A material stamping die according to claim 1, wherein: the die is characterized in that a male die fixing block (5) which is located on the lower side of the floating block (4) and connected with the side pressing male die (7) is arranged in the female die groove (31), a male die cushion block (6) is arranged on the lower side of the male die fixing block (5), and a cylinder seat (8) connected with the side pressing male die (7) is arranged on the lower die seat (1).

6. A material stamping die according to claim 5, wherein: be provided with on terrace die cushion (6) with cushion groove (61) that blank pressing terrace die (7) position matches, the bottom of terrace die fixed block (5) be provided with fixed block kerve (51) that cushion groove (61) matches, it is corresponding blank pressing terrace die (7) pass behind fixed block kerve (51) insert terrace die groove (42).

7. A material stamping die according to claim 1, wherein: chamfers (41) are arranged at two ends of the upper side of the floating block (4) along the material moving direction.