CN209792398U

CN209792398U - Bidirectional bending stamping die

Info

Publication number: CN209792398U
Application number: CN201822104219.2U
Authority: CN
Inventors: 吴志富
Original assignee: Dongguan Yongqiang Spring Hardware Co Ltd
Current assignee: Dongguan Yongqiang Spring Hardware Co Ltd
Priority date: 2018-12-14
Filing date: 2018-12-14
Publication date: 2019-12-17
Anticipated expiration: 2028-12-14

Abstract

The utility model relates to a two-way bending stamping die, which comprises a base, a lower die holder, an upper die holder and a die shank, wherein a supporting plate is fixedly connected between the lower die holder and the base, a flanging female die is fixedly arranged on the lower die holder, a through hole is arranged in the middle of the flanging female die, a material ejecting female die is matched in the through hole in a sliding manner up and down, a backing plate is fixedly arranged at the bottom of the upper die holder, a punch plate is fixedly arranged at the bottom of the backing plate, a flanging male die matched with the through hole on the flanging female die is arranged below the punch plate, a bending male die matched with the flanging male die in an inserting manner is fixedly arranged in the middle of the punch plate, an inclined plane is symmetrically arranged on the lower end surface of the bending male die and matched with a groove arranged on the material ejecting female die, a punching piece is bent downwards through an inclined plane matching groove at the lower end of, the bidirectional bending and forming can be completed by one-time stamping action, and the production efficiency is improved.

Description

Bidirectional bending stamping die

Technical Field

The utility model relates to a stamping die field, concretely relates to two-way stamping die of bending.

Background

The stamping process, namely, the process method of pressing a plate material by a press and external equipment thereof through a die so as to obtain a part with a certain shape and size, wherein the stamping is a process method widely applied in production and mainly used for processing a sheet metal part, and the die used for the stamping process is called a stamping die and generally comprises a movable die part and a fixed die part.

The existing hardware machining part is structurally shown in fig. 7, a left part and a right part which are symmetrical need to be machined, the left part and the right part are required to be equal in number in production, the part per se belongs to an asymmetrical special-shaped part, a single piece is adopted in a common machining mode, a semi-finished product with an upward bending edge is obtained through a single piece punching process, then the semi-finished product is punched again to obtain a finished product with a downward bending edge, machining efficiency is low, transverse unbalanced force exists during single piece punching, and the service life of a die and punching quality are affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a two-way stamping die that bends will dash a piece through the turn-ups terrace die and compress tightly, and the inclined plane cooperation recess of the terrace die lower extreme of bending will dash a piece and bend downwards, liftout die pressurized lapse simultaneously, and turn-ups terrace die cooperation turn-ups die will dash a piece and upwards bend, and one-time punching press action can be accomplished two-way bending and take shape, has improved production efficiency.

In order to realize the above purpose, the utility model discloses a technical scheme be: a bidirectional bending stamping die comprises a base 1, a lower die holder 3, an upper die holder 2 and a die handle 4, a supporting plate 8 is fixedly connected between the lower die holder 3 and the base 1, the die handle 4 is fixedly connected with the upper end of the upper die holder 2, a flanging female die 11 is fixedly arranged on the lower die holder 3, a through hole is arranged in the middle of the flanging female die 11, and the material ejecting female die 5 is matched in the hole in a vertical sliding way, the bottom of the upper die holder 2 is fixedly provided with a backing plate 10, the bottom of the backing plate 10 is fixedly provided with a punch retainer 15, a flanging punch 9 matched with the through hole on the flanging female die 11 is arranged below the punch retainer 15, and the middle part of the punch retainer 15 is fixedly provided with a bending punch 18 which is in inserting fit with the flanging punch 9, the lower end face of the bending convex die 18 is symmetrically provided with inclined planes, and the inclined planes are matched with a groove 20 formed in the ejection concave die 5.

Preferably, the lower die holder 3 is fixedly provided with limiting sleeves 12 at two sides of the flanging female die 11, the bottom of the upper die holder 2 is fixedly provided with guide sleeves 13 aligned with the limiting sleeves 12 up and down, and the guide columns 14 fixedly connected with the lower die holder 3 are matched with the guide sleeves 13 and the limiting sleeves 12 in an inserting and sleeving manner.

Preferably, the middle of the lower die holder 3 is symmetrically provided with a through hole, an ejection rod 6 in threaded connection with the ejection female die 5 is arranged in the through hole, the lower end of the ejection rod 6 is matched with the base 1 in an inserting and sleeving manner, and the ejection rod 6 is sleeved with an ejection spring 7.

Preferably, the middle of the punch retainer 15 is symmetrically provided with a through hole, a discharging rod 17 in threaded connection with the flanging punch 9 is arranged in the through hole, the upper end of the discharging rod 17 penetrates through the base plate 10 and is in plug bush fit with the upper die base 2, and the discharging rod 17 is sleeved with a material pressing spring 16.

Preferably, the upper surface of the flanging female die 11 is fixedly provided with a front positioning plate 21 and a rear positioning plate 22 at the front side and the rear side of the ejection female die 5 respectively, and the front positioning plate 21 and the rear positioning plate 22 are both provided with positioning grooves matched with the edge of the workpiece 19.

Drawings

Fig. 1 is a schematic view of a front sectional structure of the present invention.

Fig. 2 is a plan view of the lower mold part of the present invention.

FIG. 3 is a top view of the matching of the ejection female die and the flanging female die.

Fig. 4 is a sectional view taken along line a-a in fig. 3.

Fig. 5 is a bottom view of the flanging punch.

Fig. 6 is a sectional view taken along line B-B in fig. 5.

Fig. 7 is a front view of the workpiece.

Fig. 8 is a schematic view of the workpiece being unfolded.

The text labels shown in the figures are represented as: 1. a base; 2. an upper die holder; 3. a lower die holder; 4. a die shank; 5. ejecting a female die; 6. a lifter bar; 7. a material ejecting spring; 8. a support plate; 9. a flanging male die; 10. a base plate; 11. flanging a female die; 12. a limiting sleeve; 13. a guide sleeve; 14. a guide post; 15. a male die fixing plate; 16. a material pressing spring; 17. a discharge rod; 18. bending the male die; 19. a workpiece; 20. a groove; 21. a front positioning plate; 22. and a rear positioning plate.

Detailed Description

In order to make the technical solution of the present invention better understood, the present invention is described in detail below with reference to the accompanying drawings, and the description of the present invention is only exemplary and explanatory, and should not be construed as limiting the scope of the present invention.

As shown in fig. 1-8, the structure of the present invention is: a bidirectional bending stamping die comprises a base 1, a lower die holder 3, an upper die holder 2 and a die shank 4, wherein a supporting plate 8 is fixedly connected between the lower die holder 3 and the base 1, the die shank 4 is fixedly connected at the upper end of the upper die holder 2, a flanging female die 11 is fixedly arranged on the lower die holder 3, a through hole is formed in the middle of the flanging female die 11, a jacking female die 5 is in up-and-down sliding fit in the through hole, a backing plate 10 is fixedly arranged at the bottom of the upper die holder 2, a male die fixing plate 15 is fixedly arranged at the bottom of the backing plate 10, a flanging male die 9 matched with the through hole in the flanging female die 11 is arranged below the male die fixing plate 15, a bending male die 18 in penetrating fit with the flanging male die 9 is fixedly arranged in the middle of the male die fixing plate 15, an inclined surface is symmetrically arranged on the lower end surface of the bending male die 18 and, the punching part is tightly pressed through the flanging male die 9, the punching part is bent downwards through the inclined plane matching groove 20 at the lower end of the bending male die 18, then the ejection female die 5 is pressed to slide downwards, the flanging male die 9 is matched with the flanging female die 11 to bend the punching part upwards, and one-step punching action can complete bidirectional bending and forming, so that the production efficiency is improved.

As shown in fig. 1, the lower die holder 3 is fixedly provided with limiting sleeves 12 at two sides of the flanging female die 11, the bottom of the upper die holder 2 is fixedly provided with a guide sleeve 13 aligned with the limiting sleeve 12 up and down, the guide sleeve 13 and the limiting sleeve 12 are internally inserted and sleeved with a guide post 14 fixedly connected with the lower die holder 3, and the limiting sleeve 12 is sleeved on the guide post 14, so that the closing height of the die can be quickly adjusted.

As shown in fig. 1, the through-hole has been seted up to the middle part symmetry of die holder 3, and downthehole be provided with liftout die 5 threaded connection's liftout pole 6, the lower extreme and the 1 plug bush cooperation of base of liftout pole 6, and the cover is equipped with liftout spring 7 on the liftout pole 6, and liftout die 5 is upwards jacked up through liftout spring 7 automatic re-setting, conveniently with work piece 19 automatic ejecting, be favorable to unloading.

As shown in fig. 1, a through hole is symmetrically formed in the middle of the punch retainer 15, a discharging rod 17 in threaded connection with the flanging punch 9 is arranged in the through hole, the upper end of the discharging rod 17 penetrates through the base plate 10 and is in plug fit with the upper die base 2, a material pressing spring 16 is sleeved on the discharging rod 17, and the flanging punch 9 is pressed downwards through the material pressing spring 16 to play a role in pressing materials.

As shown in fig. 2, a front positioning plate 21 and a rear positioning plate 22 are respectively and fixedly arranged on the front side and the rear side of the ejection female die 5 on the upper surface of the flanging female die 11, positioning grooves matched with the edges of the workpieces 19 are respectively formed in the front positioning plate 21 and the rear positioning plate 22, and the punched workpieces are restrained by the front positioning plate and the rear positioning plate, so that the positioning is accurate.

When the punching die is used, two groups of punching parts are symmetrically placed on the left side and the right side of the groove 20, the punching parts are restrained by the front positioning plate 21 and the rear positioning plate 22 to be accurately positioned, then the upper die holder 2 pushes the die shank 4 to move downwards along with a press, the punching parts are pressed by the flanging male die 9, at the moment, the ejection female die 5 is flush with the upper plane of the flanging female die 11, the upper die holder 2 continues to move downwards to compress the material pressing spring 16, downward bending forming is completed under the action of the bending male die 18 and the groove 20, after the upper plane of the flanging male die 9 touches the male die fixing plate 15, the ejection spring 7 starts to be compressed, upward bending forming is completed under the action of the flanging male die 9 and the flanging female die 11, in order to enable a workpiece to be clearly bent round angle, the upper die holder 2 needs to move downwards to the lower plane of the ejection female die 5 to touch the lower die holder 3 to play a role of correcting bending, and, the ejection spring 7 automatically resets and simultaneously ejects the ejection female die 5, the workpiece 19 is ejected out of the flanging female die 11, a stamping process is completed, two-way bending forming can be completed through one-time stamping action, forming of left and right parts of a product is completed simultaneously, and production efficiency and stamping quality are improved.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principle and the implementation of the present invention have been explained by using specific examples, the description of the above examples is only used to help understand the method and the core idea of the present invention, the above description is only the preferred implementation of the present invention, it should be pointed out that there is an infinite specific structure objectively due to the limited character expression, and for those skilled in the art, without departing from the principle of the present invention, several improvements, decorations or changes can be made, and the above technical features can be combined in a proper manner; the application of these modifications, variations or combinations, or the application of the concepts and solutions of the present invention in other contexts without modification, is not intended to be considered as a limitation of the present invention.

Claims

1. The utility model provides a two-way stamping die that bends, it includes base (1), die holder (3), upper die base (2) and die shank (4), its characterized in that: a supporting plate (8) is fixedly connected between the lower die holder (3) and the base (1), the die handle (4) is fixedly connected with the upper end of the upper die holder (2), the lower die holder (3) is fixedly provided with a flanging female die (11), the middle part of the flanging female die (11) is provided with a through hole, and a material ejection female die (5) is in up-down sliding fit in the hole, a backing plate (10) is fixedly arranged at the bottom of the upper die holder (2), a punch retainer (15) is fixedly arranged at the bottom of the backing plate (10), a flanging punch (9) matched with the through hole on the flanging female die (11) is arranged below the punch retainer (15), and the middle part of the punch retainer (15) is fixedly provided with a bending punch (18) which is in inserting fit with the flanging punch (9), the lower end surface of the bending punch (18) is symmetrically provided with an inclined surface, and the inclined plane is matched with a groove (20) arranged on the ejection female die (5).

2. The double-fold stamping die according to claim 1, wherein: the die is characterized in that limiting sleeves (12) are fixedly arranged on the lower die base (3) on two sides of the flanging female die (11), guide sleeves (13) which are vertically aligned with the limiting sleeves (12) are fixedly arranged at the bottom of the upper die base (2), and guide columns (14) fixedly connected with the lower die base (3) are matched with inner inserting sleeves of the guide sleeves (13) and the limiting sleeves (12).

3. The double-fold stamping die according to claim 1, wherein: the middle of the lower die holder (3) is symmetrically provided with a through hole, an ejector rod (6) which is in threaded connection with the ejection female die (5) is arranged in the through hole, the lower end of the ejector rod (6) is matched with the plug bush of the base (1), and the ejector rod (6) is sleeved with an ejector spring (7).

4. The double-fold stamping die according to claim 1, wherein: the middle of the punch retainer (15) is symmetrically provided with a through hole, a discharging rod (17) in threaded connection with the flanging punch (9) is arranged in the through hole, the upper end of the discharging rod (17) penetrates through the base plate (10) and is matched with the upper die base (2) in an inserting and sleeving manner, and a material pressing spring (16) is sleeved on the discharging rod (17).

5. The double-fold stamping die according to claim 1, wherein: the upper surface of the flanging female die (11) is fixedly provided with a front positioning plate (21) and a rear positioning plate (22) at the front side and the rear side of the ejection female die (5) respectively, and positioning grooves matched with the edges of workpieces (19) are formed in the front positioning plate (21) and the rear positioning plate (22).