CN217889267U - Precision gear fine blanking die - Google Patents

Abstract

The utility model discloses a precision gear fine blanking mould, die carrier including upper die base and die holder constitution, install the mould on the die bed before processing is opened and is made, install the material behind the die cavity, then opening equipment, the die cavity is strikeed to the core under the drive of equipment, make the part drop, the upward movement resets under the drive of equipment afterwards, the ejector pin of core in the in-process unloading structure of downstream is followed the core downwards, the ejector pin is ejecting with the stripper rod, wherein the stripper rod top is the oblique ruler form, the oblique ruler form enables the stripper rod earlier to mounting groove moving part distance, make the diagonal ruler of stripper rod bottom stretch into in the mounting groove, then promote downwards under the promotion of ejector pin, withdraw from the mounting groove with the part, then at the in-process that the core upwards resets, the stripper rod drives the stripper rod rebound, spring elasticity effect drives the reset block and resets, the reset block drives the reset rod and makes the stripper rod reset completely, thereby the possibility that the mounting groove probably blockked up when the part drops when the ejection of compact has been reduced.

Description

Precision gear fine blanking die

Technical Field

The utility model relates to a mold design technical field specifically is an accurate gear fine blanking mould.

Background

The blank is formed into a tool with a specific shape and size under the action of external force. The method is widely applied to blanking, die forging, cold heading, extrusion, powder metallurgy part pressing, pressure casting and the forming processing of compression molding or injection molding of products such as engineering plastics, rubber, ceramics and the like. The die has a specific contour or cavity shape, and the blank can be separated (blanked) according to the contour shape by applying the contour shape with the cutting edge. The blank can obtain a corresponding three-dimensional shape by using the shape of the inner cavity. The mold generally comprises a movable mold and a fixed mold (or a male mold and a female mold), which can be separated or combined. When the two parts are separated, the part is taken out, and when the two parts are folded, the blank is injected into the cavity of the mold for forming. The die is a precise tool, has a complex shape, bears the expansion force of a blank, has higher requirements on structural strength, rigidity, surface hardness, surface roughness and processing precision, and the development level of die production is one of important marks of the mechanical manufacturing level.

After current fine blanking mould was accomplished in processing, the part falls out from the mounting groove at the in-process that drops is automatic, but this kind of mode of unloading can lead to when unloading the part can block in the mounting groove, blocks up the discharge opening, can only dredge to the discharge opening through the mode of artifical mediation to probably produce the problem that process velocity reduces.

Therefore, a precision gear fine blanking die is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an accurate gear fine blanking mould to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a precision gear fine blanking mould, includes the die carrier that upper die base and die holder are constituteed, all install four guide pin bushings on upper die base and the die holder, the guide pin bushing divide into four groups, and four groups all overlap in the guide pin bushing and be equipped with the guide pillar, install punch holder and lower mould fixed plate on upper die base and the die holder respectively, install core and die cavity on punch holder and the lower mould fixed plate respectively, be provided with the structure of unloading that is used for unloading in the die carrier, punch holder and lower mould fixed plate all fix respectively on upper die base and die holder through dowel one, core and die cavity are all installed respectively on punch holder and lower mould fixed plate through dowel two.

Preferably, the unloading structure comprises four mounting grooves formed in the die carrier, the four mounting grooves all penetrate through the die core, the die cavity, the lower die fixing plate and the lower die holder, an unloading rod is mounted in the mounting groove in the die cavity, a reset assembly is connected to the unloading rod, an ejector rod is movably mounted on the unloading rod and fixedly connected to the inside of the die core, and an inner core is mounted on the die core.

Preferably, the reset assembly includes the release link, the one end of release link is passed through the willow nail and is connected on the stripper bar, the other end of release link is connected on the reset block, the reset block passes through spring elastic connection on the atress piece, the U template passes through the screw with reset block fixed mounting on the core, be provided with the guide bar in the spring.

Preferably, the bottom end of the discharging rod is provided with inclined teeth, and the inclined teeth are used for preventing parts from being damaged.

Preferably, the die cavity, the lower die fixing plate and the lower die base are all provided with a discharge opening in a penetrating mode.

Compared with the prior art, the beneficial effects of the utility model are that:

install the mould on the die press machine before the processing is opened and is made, install the material behind the die cavity, then open equipment, the die core strikes the die cavity under the drive of equipment, make the part drop, the upward movement resets under the drive of equipment afterwards, the core is downward followed the core at the ejector pin in the in-process of the downward movement structure of unloading, the ejector pin is ejecting with the stripper bar, wherein the stripper bar top is the oblique chi form, the oblique chi form enables the stripper bar earlier to mounting groove moving part distance, make the inclined ruler of stripper bar bottom stretch into in the mounting groove, then promote downwards under the promotion of ejector pin, withdraw from the mounting groove with the part, then at the in-process that the core upwards resets, the stripper bar rebound that the spring elastic action drove, the reset block drives the reset block and makes the stripper bar reset completely, thereby reduced when the ejection of compact when the part drops the possibility of probably blockking up the mounting groove.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic illustration of a core of the present invention;

FIG. 3 is a schematic view of the cavity of the present invention;

fig. 4 is a schematic view of the discharging structure of the present invention;

FIG. 5 is a schematic sectional view of the cavity of the present invention;

fig. 6 is a schematic view of the position of the guide rod of the present invention.

In the figure: 1. an upper die holder; 2. a guide sleeve; 3. a guide post; 4. a lower die holder; 5. an upper die fixing plate; 6. a lower die fixing plate; 7. a core; 8. a cavity; 9. positioning a first pin; 10. a discharging structure; 11. a second positioning pin; 12. an inner core; 13. mounting grooves; 14. a discharge opening; 15. a screw; 16. a top rod; 17. a reset lever; 18. a discharge rod; 19. helical teeth; 20. a rivet; 21. a reset block; 22. a spring; 23. a stress block; 24. a mold frame; 25. a guide bar; 26. a U-shaped plate; 27. and resetting the component.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a precision gear fine blanking die comprises a die carrier 24 consisting of an upper die holder 1 and a lower die holder 4, wherein four guide sleeves 2 are respectively arranged on the upper die holder 1 and the lower die holder 4, the guide sleeves 2 are divided into four groups, guide posts 3 are sleeved in the four groups of guide sleeves 2, an upper die fixing plate 5 and a lower die fixing plate 6 are respectively arranged on the upper die holder 1 and the lower die holder 4, a mold core 7 and a mold cavity 8 are respectively arranged on the upper mold fixing plate 5 and the lower mold fixing plate 6, a discharging structure 10 for discharging is arranged in the mold base 24, the upper die fixing plate 5 and the lower die fixing plate 6 are respectively fixed on the upper die base 1 and the lower die base 4 through a first positioning pin 9, the mold core 7 and the mold cavity 8 are respectively arranged on the upper mold fixing plate 5 and the lower mold fixing plate 6 through a second positioning pin 11, wherein the machining is performed such that the mould is mounted on the punch machine before the material is mounted in the cavity 8, after which the device is opened, the core 7 impacts the cavity 8 under the driving of the equipment to make the part fall off, then the core is driven by the equipment to move upwards to reset, the mandril 16 in the discharging structure 10 follows the core 7 to move downwards in the downward movement process of the core 7, the mandril 16 ejects the discharging rod 18, wherein the upper part of the discharging rod 18 is in the shape of an oblique ruler, the oblique ruler can ensure that the discharging rod 18 firstly moves a part of distance to the mounting groove 13, the oblique ruler at the bottom end of the discharging rod 18 extends into the mounting groove 13, then pushed downwards by the push rod 16 to withdraw the part out of the mounting groove 13, and then in the process of resetting the core 7 upwards, reset bar 17 drives discharge bar 18 rebound, and spring 22 elastic action drives reset block 21 and resets, and reset block 21 drives reset bar 17 and makes discharge bar 18 reset completely to the possibility that probably blockked up mounting groove 13 when the part dropped when the ejection of compact has been reduced.

The discharging structure 10 comprises mounting grooves 13 formed in a die carrier 24, the number of the mounting grooves 13 is four, the four mounting grooves 13 all run through a core 7, a cavity 8, a lower die fixing plate 6 and a lower die holder 4, a discharging rod 18 is mounted in the mounting groove 13 in the cavity 8, a reset assembly 27 is connected to the discharging rod 18, an ejector rod 16 is movably mounted on the discharging rod 18, the ejector rod 16 is fixedly connected to the core 7, an inner core 12 is mounted on the core 7, in the process of operating the device, the upper die base 1 drives the core 7 to move downwards, the ejector rod 16 pushes the discharging rod 18, the discharging rod 18 can move downwards, finished products are withdrawn, discharging operation is completed, and therefore the effect that parts are clamped in the mounting grooves 13 without manual cleaning is achieved, and the problem that the parts block a discharging opening 14 can be reduced.

Reset assembly 27 includes release link 17, the one end of release link 17 is passed through the spike 20 and is connected on discharging rod 18, the other end of release link 17 is connected on reset block 21, reset block 21 passes through spring 22 elastic connection on atress piece 23, U-shaped board 26 passes through screw 15 with reset block 21 fixed mounting on core 7, be provided with guide bar 25 in the spring 22, wherein drive core 7 upward movement at the ascending in-process of upper die base 1 to make reset link 17 upward movement, drive discharging rod 18 through spike 20 and upwards reset at the in-process of reset link 17 upward movement, make reset block 21 restore to the throne under the effect of spring 22 behind upwards in-process ejector pin 16 breaks away from discharging rod 18, reset block 21 drives reset link 17 and makes discharging rod 18 reset completely, thereby make discharging structure 10 can unload and restore to the throne at equipment operation in-process, need not artifical clearance can accomplish the clearance to mounting groove 13.

The bottom end of the discharging rod 18 is provided with inclined teeth 19, the inclined teeth 19 are used for preventing parts from being damaged, pressure can possibly damage the parts during discharging by arranging an inclined ruler at the bottom of the discharging rod 18, and the inclined teeth 19 can reduce damage to the parts, so that the yield is improved.

Die cavity 8, lower mould fixed plate 6, die holder 4 all run through and have seted up discharge opening 14, wherein through running through discharge opening 14 at die cavity 8, lower mould fixed plate 6 and die holder 4 to the part that has reached after the processing can fall out die carrier 24 through discharge opening 14.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a precision gear fine blanking mould, includes die carrier (24) that upper die base (1) and die holder (4) are constituteed, all install four guide pin bushing (2) on upper die base (1) and die holder (4), guide pin bushing (2) are divided into four groups, four groups all the cover is equipped with guide pillar (3) in guide pin bushing (2), install punch plate (5) and lower mould fixed plate (6) on upper die base (1) and die holder (4) respectively, install core (7) and die cavity (8) on punch plate (5) and lower mould fixed plate (6) respectively, its characterized in that: the die set is characterized in that a discharging structure (10) for discharging is arranged in the die set (24), the upper die fixing plate (5) and the lower die fixing plate (6) are respectively fixed on the upper die base (1) and the lower die base (4) through a first positioning pin (9), and the die core (7) and the die cavity (8) are respectively installed on the upper die fixing plate (5) and the lower die fixing plate (6) through a second positioning pin (11).

2. A precision gear fine blanking die according to claim 1, wherein: unloading structure (10) is including seting up mounting groove (13) on die carrier (24), mounting groove (13) have four, four mounting groove (13) all run through core (7), die cavity (8), lower mould fixed plate (6) and die holder (4), install stripper rod (18) in mounting groove (13) on die cavity (8), be connected with reset unit (27) on stripper rod (18), movable mounting has ejector pin (16) on stripper rod (18), ejector pin (16) fixed connection is in core (7), install inner core (12) on core (7).

3. A precision gear fine blanking die according to claim 2, wherein: reset assembly (27) include release link (17), the one end of release link (17) is passed through willow nail (20) and is connected on unloading rod (18), the other end of release link (17) is connected on release block (21), release block (21) are through spring (22) elastic connection on atress piece (23), there are U template (26) through screw (15) and release block (21) fixed mounting on core (7), be provided with guide bar (25) in spring (22).

4. A precision gear fine blanking die according to claim 2, wherein: the bottom end of the discharging rod (18) is provided with inclined teeth (19), and the inclined teeth (19) are used for preventing parts from being damaged.

5. A precision gear fine blanking die according to claim 3, wherein: the die cavity (8), the lower die fixing plate (6) and the lower die base (4) are all provided with a discharge opening (14) in a penetrating mode.

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