CN212664792U

CN212664792U - Fixing die for gear punching

Info

Publication number: CN212664792U
Application number: CN202020952070.8U
Authority: CN
Inventors: 刘羽
Original assignee: Chongqing Wangdefu Machinery Co ltd
Current assignee: Chongqing Wangdefu Machinery Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-03-09
Anticipated expiration: 2030-05-29

Abstract

The utility model relates to a stamping die technical field specifically discloses a gear punches a hole and uses fixed mould. Including last mould and lower mould, it includes the upper die base that from the top down set gradually to go up the mould, upper padding plate and punch holder, the lower mould includes the lower bolster that from the top down set gradually, lower padding plate and die holder, the punch holder bottom is equipped with a plurality of drifts, the lower bolster surface is equipped with a plurality of circular shape that correspond with the drift and is used for placing the mould groove of gear, mould inslot wall circumference is equipped with a plurality of air pressure bars, the output of air pressure bar all is towards mould groove center, air pressure bar quantity is no less than three, the output of air pressure bar all is equipped with curved pressing blade, be equipped with the switch on the lower mould, the switch is connected with the equal electricity of air pressure bar, upward be equipped with. Aim at solves traditional stamping die and punches inclined to one side easily when the gear punches a hole problem.

Description

Fixing die for gear punching

Technical Field

The utility model relates to a stamping die technical field specifically discloses a gear punches a hole and uses fixed mould.

Background

The gear type wheel rim is provided with mechanical elements which can continuously mesh with each other to transmit motion and power: toothed mechanical parts which can be engaged with one another, although the use of gearwheels in transmissions has long been known, have hitherto been important transmission elements.

In the meshing process of the gear, only a few teeth are in a meshing state, the centering performance of the gear is required to be good, otherwise, the teeth beating and the non-meshing state are easy to occur, so that the gear cannot be punched in a forging and punching mode, the phenomenon of punching deviation often occurs in the existing gear punching mode, and the punching heads are arranged at one time, so that the labor and the time are wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve traditional stamping die and dash inclined to one side problem easily when the gear punches a hole.

In order to achieve the above object, the utility model discloses a basic scheme provides a gear punches a hole and uses fixed mould, including last mould and lower mould, it includes the upper die base that from the top down set gradually to go up the mould, upper padding plate and punch holder, the lower mould includes the lower bolster that from the top down set gradually, lower padding plate and die holder, the punch holder bottom is equipped with a plurality of drifts, the lower bolster surface is equipped with a plurality of circular shape that correspond with the drift and is used for placing the mould groove of gear, mould inslot wall circumference is equipped with a plurality of air pressure bars, the output of air pressure bar all is towards mould groove center, air pressure bar quantity is no less than threely, the output of air pressure bar all is equipped with curved compact disc, be equipped with the switch on the lower mould, the switch is connected with the equal electricity of air.

The principle and effect of this basic scheme lie in:

1. the upper die base is used for fixing the upper clamping plate and the upper base plate and bearing blanking force transmitted by the upper base plate when the die punches a hole, the upper base plate is used for bearing acting force of the punch on the clamping plate, the upper base plate also plays a role in protecting the upper die base, and the upper clamping plate is used for fixing the punch and ensuring the position of the punch.

2. The mould groove on the lower bolster is used for placing the gear, but the size of gear differs, when the position of the centre bore of definite gear, need open the switch, all pneumatic rods are connected to the switch, and control pneumatic rod is flexible simultaneously to flexible distance is unanimous, when placing the gear in the mould groove, the pneumatic rod stretches out same distance inwards, and the laminating extrusion gear of pressing blade can be fixed the gear in central point department, with the central point department alignment drift of gear.

3. The lower bolster is used for bearing the impact force that receives punching a hole on the lower bolster, and the lower bolster plays the effect of protection die holder, and the die holder is used for fixed lower bolster and lower bolster.

4. Compared with the prior art, the scheme can ensure that gears of different sizes can not be deflected when forged and punched, and a die groove does not need to be replaced when gears of different sizes are replaced, so that the operation process is reduced, and the gears can be simultaneously punched, so that the punching efficiency is improved, the energy consumption is reduced, the qualified rate of the punched gears is high, and the production efficiency is improved.

Furthermore, the pressing sheet is a spring sheet. The pressing sheet is deformable, can be attached to gears of different sizes, and plays a better role in fixing.

Furthermore, guiding mechanism includes a plurality of guide pillars and can with a plurality of guide pin bushings of guide pillar complex, and the guide pin bushing all locates the upper padding plate bottom, and the guide pillar all locates the lower bolster top. Realize the guide effect, guarantee the fixed position of each part.

Furthermore, the switch is connected to the top of the lower template in a sliding mode, a telescopic rod is arranged at the position, corresponding to the switch, of the bottom of the upper padding plate, and the telescopic rod penetrates through the upper clamping plate and can be in contact with the switch. The switch does not need to be manually turned on any more, when the upper die is put down and the punch does not contact the gear, the telescopic rod firstly touches the switch, so that the pneumatic rod moves to clamp the gear, the central point of the gear is fixed at the position of the punch, the operation process is simplified, and the working efficiency is further improved.

Drawings

Fig. 1 is a front view of a fixed die for gear punching according to an embodiment of the present invention;

fig. 2 is the embodiment of the utility model provides a gear punches a hole with the plan view of fixed die's lower mould.

Detailed Description

The following is further detailed by the specific embodiments:

reference numerals in the drawings of the specification include: the device comprises an upper die holder 1, an upper padding plate 2, an upper clamping plate 3, a lower die plate 4, a lower padding plate 5, a lower die holder 6, a punch 7, a die groove 8, a pneumatic rod 9, a switch 10, a pressing sheet 11, a guide sleeve 12, a guide pillar 13 and a telescopic rod 14.

An embodiment of a fixed die for punching a gear is shown in fig. 1 and 2. The gear punching die comprises an upper die and a lower die, wherein the upper die comprises an upper die base 1, an upper padding plate 2 and an upper clamping plate 3 which are sequentially arranged from top to bottom, the lower die comprises a lower die plate 4, a lower padding plate 5 and a lower die base 6 which are sequentially arranged from top to bottom, three punches 7 are arranged at the bottom end of the upper clamping plate 3, the intervals among the punches 7 are the same, three circular die grooves 8 which correspond to the punches 7 and are used for placing gears are arranged on the surface of the lower die plate 4, four air pressure rods 9 are circumferentially arranged on the inner wall of each die groove 8, the output ends of the air pressure rods 9 are all arranged towards the center of the die groove 8, pressing pieces 11 are all arranged at the output ends of the air pressure rods 9, the pressing pieces 11 are arc-shaped, the pressing pieces 11 are spring pieces, switches 10 are arranged on the lower die, the switches 10 are electrically connected with the air pressure rods 9, the switches 10 are slidably connected to the, the upper die and the lower die are internally provided with a guide mechanism for positioning, the guide mechanism comprises two guide pillars 13 and two guide sleeves 12 which can be matched with the guide pillars 13, the guide sleeves 12 are arranged on two sides of the bottom of the upper backing plate 2, and the guide pillars 13 are arranged on two sides of the top of the lower backing plate 5.

When the punching die is used, the upper die is lifted, the gear is horizontally placed in the die groove 8, the central point of the gear does not need to be aligned with the punch 7 at the moment, the upper die is pressed down after placement, the bottom end of the telescopic rod 14 is lower than the punch 7, when the punch 7 is not in contact with the gear, the telescopic rod 14 is firstly in contact with the switch 10, the switch 10 is opened by the telescopic rod 14 extruding the switch 10, the switch 10 opens the air pump of the air pressure rod 9, the air pressure rod 9 extends towards the die groove 8, the extending distances of the air pressure rod 9 are the same, the air pressure rod 9 extrudes the gear from four sides, the die groove 8 is circular, the gear can be moved to the central position when the same force is applied to extrude the gear from four sides, the central point of the gear is aligned with the punch 7, punching accuracy is ensured, the telescopic rod 14 is contracted towards.

The punch 7 can be used for forming a plurality of gears once after being put down, the working efficiency is improved, the operation process is reduced, the expansion of the air pressure rod 9 can ensure that the gears with different sizes can not be deflected when being forged and punched, the die groove 8 is not required to be replaced when the gears with different sizes are replaced, the telescopic rod 14 can open the switch 10 when the upper die extrudes the lower die, the operation process is simplified, and the working efficiency is further improved.

The above description is only for the embodiments of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art will know all the common technical knowledge in the technical field of the present invention before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the schemes, and some typical known structures or known methods should not become obstacles for those skilled in the art to implement the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a gear punches a hole and uses fixed mould, a serial communication port, including last mould and lower mould, it includes the upper die base that from the top down set gradually to go up the mould, upper padding plate and punch holder, the lower mould includes the lower bolster that from the top down set gradually, lower bolster and die holder, the punch holder bottom is equipped with a plurality of drifts, the lower bolster surface is equipped with a plurality of circular shape that correspond with the drift and is used for placing the mould groove of gear, mould inslot wall circumference is equipped with a plurality of air pressure bars, the output of air pressure bar all faces mould groove center, air pressure bar quantity is no less than threely, the output of air pressure bar all is equipped with curved compact heap, be equipped with the switch on the lower mould, the switch is connected with the equal electricity of air pressure.

2. The fixed die for gear punching according to claim 1, characterized in that: the pressing pieces are spring pieces.

3. The fixed die for gear punching according to claim 1, characterized in that: the guide mechanism comprises a plurality of guide pillars and a plurality of guide sleeves capable of being matched with the guide pillars, the guide sleeves are arranged at the bottom of the upper base plate, and the guide pillars are arranged at the top of the lower base plate.

4. The fixed die for gear punching according to any one of claims 1 to 3, characterized in that: the switch is connected to the top of the lower template in a sliding mode, a telescopic rod is arranged at the position, corresponding to the switch, of the bottom of the upper padding plate, and the telescopic rod penetrates through the upper clamping plate and can be in contact with the switch.