CN215965746U

CN215965746U - Self-resetting support structure for flange-free multi-station drawing

Info

Publication number: CN215965746U
Application number: CN202122169182.3U
Authority: CN
Inventors: 徐尚华
Original assignee: Wuxi Crystalht Technology Co ltd
Current assignee: Wuxi Crystalht Technology Co ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-03-08
Anticipated expiration: 2031-09-08

Abstract

The utility model provides a self-resetting support structure for flange-free multi-station drawing, which comprises an upper die assembly and a lower die assembly, wherein an upper nitrogen spring, a dowel bar and a push plate are sequentially arranged in the upper die assembly from top to bottom; the lower die component is sequentially provided with a lower nitrogen spring, a drawing punch and an assembly part from bottom to top, the bottom of the assembly part is arranged on the lower die base through the lower nitrogen spring, the assembly part comprises a side sliding block, a floating plate, a baffle plate and a reset spring, the baffle plate is arranged at the sliding grooves in the left side and the right side of the floating plate, the inner side of the baffle plate is connected with the side sliding block through the reset spring, and the drawing punch is arranged in the middle of the floating plate in a penetrating mode through a through hole. According to the utility model, through a freely telescopic slide block structure, a sufficient positioning plane is ensured before a part enters a female die, and the part is sufficiently positioned without deviation after entering the female die, so that the size is ensured; simple structure, low cost, stable and reliable structure.

Description

Self-resetting support structure for flange-free multi-station drawing

Technical Field

The utility model mainly relates to the field of multifunctional dies, in particular to a self-resetting support structure for flange-free multi-station drawing.

Background

The structure is researched and developed according to the drawing process requirements of the deep drawing part of the safety airbag and the high-pressure fuel pump, however, the flange-free deep drawing part in the existing multifunctional die structure needs to be stably transferred among stations when working, because the inner diameter of the flange-free deep drawing part is consistent with the diameter of the punch, the contact area between a floating plate (playing the role of supporting deep drawing and stripping) and the deep drawing part is only too small for the area of the part wall thickness part, if the product is in the transfer process, because the positioning area is too small and the error of the transfer process is added, the part can be shifted out of the only small positioning area, the deep drawing part is caused to deviate and can not normally enter the female die and the punch, the uneven deflection of the part stress is caused, and the condition that the inner diameter size and the shape tolerance of the part are poor occurs.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a self-resetting support structure for flange-free multi-station drawing, which comprises an upper die assembly and a lower die assembly, wherein an upper nitrogen spring 1, a dowel bar 2 and a push plate 3 are sequentially arranged in the upper die assembly from top to bottom, a push rod 4 is further arranged in the upper die assembly in a penetrating manner, and a drawing female die 5 is arranged on the outer side of the push plate 3;

lower mould component is from supreme nitrogen spring 6, deep-drawing drift 7 and the sub-assembly of having set gradually down, the bottom of sub-assembly sets up on the die holder through nitrogen spring 6 down, the sub-assembly includes side slide 8, buoyancy lift plate 9, baffle 10, reset spring 11, the spout 12 department of the left and right sides of buoyancy lift plate 9 is provided with baffle 10, baffle 10 inboard is connected with side slide 8 through reset spring 11, be provided with the through-hole in the middle of the buoyancy lift plate 9 and wear to establish deep-drawing drift 7.

Preferably, the elastic force generated by compressing the upper nitrogen spring 1 after the drawn part is completely inserted into the cavity of the upper die assembly by the lower nitrogen spring 6 is smaller than the original elastic force of the lower nitrogen spring 6 in the initial state.

Preferably, a spring placing hole is arranged at one side of the side slider 8 close to the return spring 11, and a hanging table 13 is arranged at the lower side of the side slider 8.

Preferably, the side slider 8 is provided with a slope 14 on the lower side thereof away from the return spring 11.

Preferably, the side slider 8 moves left and right along the slide groove 12.

Preferably, the upper nitrogen spring 1 drives the push plate 3 to move downwards through the dowel bar 2.

Preferably, the side of the ejector rod 4 far away from the lower die assembly is arranged in the upper die assembly through an upper discharging spring 15.

The utility model has the beneficial effects that: through a slide block structure capable of freely stretching, a sufficient positioning plane is ensured before the part enters the female die, the part is sufficiently positioned without deviation after entering the female die, and the size is ensured; simple structure, low cost, stable and reliable structure.

Drawings

FIG. 1 is a view showing the construction of a side slider according to the present invention;

FIG. 2 is a view showing a structure of a floating plate according to the present invention;

FIG. 3 is a view showing the construction of the assembly of the present invention;

FIG. 4 is a block diagram of step one in use of the present invention;

FIG. 5 is a block diagram of step two of the present invention in use;

FIG. 6 is a block diagram of step three of the present invention in use;

FIG. 7 is a block diagram of step four of the present invention in use;

FIG. 8 is a block diagram of step five of the present invention in use;

FIG. 9 is a block diagram of step six of the present invention in use;

FIG. 10 is a block diagram of step seven of the present invention as it is used;

FIG. 11 is a block diagram of step eight when the present invention is in use;

FIG. 12 is a block diagram of step nine when the present invention is in use;

FIG. 13 is a block diagram of step ten of the present invention in use;

FIG. 14 is a block diagram of step eleven when the present invention is in use;

in the figure, the position of the upper end of the main shaft,

1. feeding a nitrogen spring; 2. a dowel bar; 3. pushing the plate; 4. a top rod; 5. drawing a female die; 6. a lower nitrogen spring; 7. drawing a punch; 8. a side slider; 9. a buoyant lift plate; 10. a baffle plate; 11. a return spring; 13. hanging a table; 14. a bevel; 15. and a loading and unloading spring.

Detailed Description

In order to make the technical solutions of the present invention better understood and make the above features, objects, and advantages of the present invention more comprehensible, the present invention is further described with reference to the following examples. The examples are intended to illustrate the utility model only and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 14, the present invention includes: the device comprises an upper die assembly and a lower die assembly, wherein an upper nitrogen spring 1, a dowel bar 2 and a push plate 3 are sequentially arranged in the upper die assembly from top to bottom, an ejector rod 4 is further arranged in the upper die assembly in a penetrating manner, and a drawing female die 5 is arranged on the outer side of the push plate 3;

In this embodiment, it is preferable that the elastic force generated by the lower nitrogen spring 6 compressing the upper nitrogen spring 1 after the drawn part has completely entered the cavity of the upper die assembly is smaller than the original elastic force of the lower nitrogen spring 6 in the initial state.

By adopting the structure, the nitrogen spring of the lower die part needs to ensure that the elastic force generated by compressing the upper nitrogen spring after the drawn part completely enters the upper cavity is smaller than the original elastic force of the lower nitrogen spring in the original state through calculation and model selection so as to ensure the normal movement process of the die.

In this embodiment, a spring placing hole is preferably provided on one side of the side slider 8 close to the return spring 11, and a hanging table 13 is preferably provided on the lower side of the side slider 8.

In the present embodiment, the side slider 8 is preferably provided with a slope 14 on the lower side thereof away from the return spring 11.

Set up above-mentioned structure, the side slider right side is provided with the spring and places the hole, and the spring of the compression state of settling is used for the restoring to the throne of slider, and the side slider downside is provided with hangs the platform for position after the present side slider restores to the throne, the downside of doing of side slider is provided with the inclined plane, and this inclined plane can provide lateral shifting's power for the side slider when with the relative motion of side slider.

In the present embodiment, the side slider 8 preferably moves left and right along the slide groove 12.

With the structure, the sliding groove arranged on the floating plate 9 is used for fixedly mounting with the baffle plate on one hand, and provides a movable track of the side sliding block on the other hand.

In the present embodiment, the upper nitrogen spring 1 drives the push plate 3 to move downwards through the dowel bar 2.

By means of the structure, the nitrogen spring provides downward force for the push plate through the dowel bar, and the nitrogen spring is used for ejecting the part out of the die cavity.

In the present embodiment, the side of the ram 4 remote from the lower die assembly is preferably arranged in the upper die assembly by means of an upper discharge spring 15.

By the arrangement of the structure, the ejector rod can push the part from the upper push plate to the lower due to the action of the upper discharging spring, so that the part is prevented from being adhered to the push plate under the action of drawing liquid or drawing oil.

In use, the following process steps are included:

the method comprises the following steps: initial position:

the deep drawing part is transferred to a die station through the translation of a mechanical arm from a previous process step, a side sliding block is positioned at an original station, the part is directly placed on the upper surface of the side sliding block, and the side sliding block protrudes out of a through hole of a deep drawing punch under the action of a return spring, so that an enough positioning plane is ensured;

step two: the upper die assembly faces downwards, and the ejector rod contacts the part;

step three: go up the mould subassembly and continue downwards, the push pedal contacts the part:

in the process, the side slide block supports the part, and the ejector rod and the upper nitrogen spring contract;

step four: go up the mould subassembly and continue downwards, the part gets into the die:

in the process, the side slide block supports the part, the push plate overcomes the spring force of the upper nitrogen and contracts, and the part enters the deep drawing female die;

step five: the floating plate moves downwards, and the sliding block moves laterally:

the upper die continues to move downwards to push the floating plate to overcome the lower nitrogen spring to move downwards, meanwhile, the side sliding blocks move towards two sides under the action of the punch and the inclined planes on the sliding blocks, and the punch protrudes out of the side sliding blocks;

step six: the part is entered to the drift and accomplishes acting:

in the process that the sliding block continues to move downwards, the buoyancy lifting plate continues to overcome the nitrogen to move downwards, and the drawing punch gradually and completely enters the inner hole of the part to finish acting;

step seven: the die moves upwards, the punch head is released:

after the sixth step is finished, the die moves upwards, and the buoyancy lifting plate is gradually reset under the action of nitrogen;

step eight: the mould goes upward, and the slider resets:

the mould is still in the ascending process, and along with the ascending of the mould, the side sliding block slides inwards under the action of the return spring and is reset;

step nine: the mould goes upward, and the part is released from the female die:

the die is still in the upward moving process, and the floating plate moves upward under the action of the lower nitrogen spring along with the upward movement of the die, so that the part is separated from the punch;

step ten: the mould goes upward, and the ejector rod extends out;

step eleven: the mould goes upward, and the upper mould part resets.

The above-described embodiments are merely illustrative of the principles and utilities of the present patent application and are not intended to limit the present patent application. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of this patent application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of this patent application.

Claims

1. A self-resetting support structure for flange-free multi-station drawing is characterized by comprising an upper die assembly and a lower die assembly, wherein an upper nitrogen spring (1), a dowel bar (2) and a push plate (3) are sequentially arranged in the upper die assembly from top to bottom, an ejector rod (4) is further arranged in the upper die assembly in a penetrating manner, and a drawing female die (5) is arranged on the outer side of the push plate (3);

lower mould component is from supreme nitrogen spring (6), deep-drawing drift (7) and the sub-assembly of having set gradually down, the bottom of sub-assembly sets up on the die holder through nitrogen spring (6) down, the sub-assembly includes side slide (8), buoyancy lift board (9), baffle (10), reset spring (11), spout (12) department of the left and right sides of buoyancy lift board (9) is provided with baffle (10), baffle (10) inboard is connected with side slide (8) through reset spring (11), be provided with the through-hole in the middle of buoyancy lift board (9) and wear to establish deep-drawing drift (7).

2. The self-resetting support structure for flange-free multi-station deep drawing according to claim 1, characterized in that: and the elastic force generated by compressing the upper nitrogen spring (1) after the drawn part completely enters the cavity of the upper die assembly by the lower nitrogen spring (6) is smaller than the original elastic force of the lower nitrogen spring (6) in the initial state.

3. The self-resetting support structure for flange-free multi-station deep drawing according to claim 2, characterized in that: one side of the side sliding block (8) close to the return spring (11) is provided with a spring placing hole, and the lower side of the side sliding block (8) is provided with a hanging table (13).

4. The self-resetting support structure for flange-free multi-station deep drawing according to claim 3, characterized in that: and an inclined plane (14) is arranged on one side of the lower side of the side sliding block (8) far away from the return spring (11).

5. The self-resetting support structure for flange-free multi-station deep drawing according to claim 4, wherein: the side sliding blocks (8) move left and right along the sliding grooves (12).

6. The self-resetting support structure for flange-free multi-station deep drawing according to claim 5, characterized in that: the upper nitrogen spring (1) drives the push plate (3) to move downwards through the dowel bar (2).

7. The self-resetting support structure for flange-free multi-station deep drawing according to claim 6, characterized in that: one side of the ejector rod (4) far away from the lower die assembly is arranged in the upper die assembly through an upper discharging spring (15).