CN215199273U

CN215199273U - Negative angle flanging die

Info

Publication number: CN215199273U
Application number: CN202120928756.8U
Authority: CN
Inventors: 陈伟; 马维民; 王鑫; 匡小红; 曹怀礼
Original assignee: Chongqing Qingling Die Co ltd; Qingling Motors Group Co Ltd
Current assignee: Chongqing Qingling Die Co ltd; Qingling Motors Group Co Ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-12-17
Anticipated expiration: 2031-04-30

Abstract

The utility model provides a negative angle flanging die, which comprises an upper flanging mechanism and a lower flanging mechanism which are used for matching to carry out negative angle flanging on parts, wherein the upper flanging mechanism is fixedly arranged on an upper die, and the lower flanging mechanism is arranged on a lower die and is in sliding fit with the lower die; the lower flanging mechanism comprises a driving piece for driving the lower flanging mechanism to act on the lower die and a negative angle flanging assembly for carrying out negative angle flanging on parts on the lower flanging mechanism; when the part is subjected to negative angle flanging, the upper flanging mechanism is positioned between the driving part and the negative angle flanging assembly, and the driving part pushes the lower flanging mechanism to act towards the direction of the negative angle flanging assembly to realize the negative angle flanging of the part; after the flanging of the negative angle of the part is finished, the reset mechanism acts to enable the lower flanging mechanism to act towards the driving piece, and the negative angle part of the part is separated from the lower flanging mechanism. This scheme has realized the negative angle turn-ups of part, and makes part and turn-ups mechanism break away from down before snatching the part, and the part card hinders when avoiding the gripping tool to snatch the part.

Description

Negative angle flanging die

Technical Field

The utility model belongs to board class parts machining field especially relates to a negative angle turn-ups mould.

Background

The negative angle forming of the plate part is often carried out by a negative angle flanging die. The part after the negative angle is formed needs to be removed from the mold in the following way:

1. and the upper die moves upwards to separate the upper die from the lower die, and then the part on the lower die, which is subjected to the negative-angle flanging, is taken down by hand. The mode is a pure manual removal mode, and the working efficiency is low.

2. And the upper die moves upwards to separate the upper die from the lower die, and then the part is grabbed by a sucker or other automatic grabbing tools. When the mode is adopted, the negative angle part of the part is easy to block with the insert on the lower die, so that the grabbing tool cannot grab the part smoothly, upward force is applied to the part by the grabbing tool in the grabbing process of the part, and the blocked part is easy to deform and damage in the ascending process driven by the grabbing tool.

SUMMERY OF THE UTILITY MODEL

In view of the above shortcoming of prior art, the utility model aims to provide a negative angle flanging die for solve among the prior art and carry out the easy card of part when snatching automatically through the snatching tool to the part that has the negative angle and hinder the scheduling problem.

In order to achieve the above and other related objects, the present invention provides a negative angle flanging die, which comprises an upper flanging mechanism and a lower flanging mechanism, wherein the upper flanging mechanism and the lower flanging mechanism are used for matching to perform negative angle flanging on a part; the lower flanging mechanism comprises a driving piece for driving the lower flanging mechanism to act on the lower die and a negative angle flanging assembly for carrying out negative angle flanging on parts on the lower flanging mechanism, and a reset mechanism for resetting the lower flanging mechanism is arranged on the lower flanging mechanism; when the part is subjected to negative angle flanging, the upper flanging mechanism is positioned between the driving part and the negative angle flanging assembly, and the driving part pushes the lower flanging mechanism to act towards the direction of the negative angle flanging assembly to realize the negative angle flanging of the part; after the flanging of the negative angle of the part is finished, the reset mechanism acts to enable the lower flanging mechanism to act towards the driving piece, and the negative angle part of the part is separated from the lower flanging mechanism.

Furthermore, the lower flanging mechanism comprises a matching block, a sliding block and an insert matched with the negative angle flanging shape required by the part, the sliding block is located between the matching block and the insert, the insert is fixed on the sliding block, an arc surface matched with the negative angle part of the part after the negative angle flanging in shape is arranged on the insert, and the matching block is used for being matched with the driving piece in use.

Furthermore, an installation frame is fixed on the lower die, and the lower flanging mechanism is installed in the installation frame.

Further, the reset mechanism comprises a first reset piece and a second reset piece, one end of the first reset piece is fixed with the matching block, and the other end of the first reset piece is a free end used for abutting against the sliding block; the second resets one end and slider fixed, the second resets the other end for being used for with the free end that the installation frame leaned on.

Furthermore, a limiting block which is used for abutting against the mounting frame to realize the motion limiting of the insert is arranged at the bottom of the insert.

Furthermore, the driving piece is a pushing block, the pushing block is fixed on the upper die, and the pushing block is matched with the inclined surface of the matching block.

Further, negative angle turn-ups subassembly includes drive block and turn-ups briquetting, the drive block rotates with last mould to be connected, the turn-ups briquetting is fixed on the drive block, be provided with on the turn-ups briquetting with insert the arc surface matching's of going up the arc surface, when the part carries out the negative angle turn-ups, the arc surface on the turn-ups briquetting supports to lean on the part and compresses tightly the part towards the arc surface on inserting.

Further, the first reset piece and the second reset piece are both nitrogen springs.

Furthermore, the matching block, the bottom of the sliding block and the side face of the sliding block are respectively provided with a guide plate, and the lower flanging mechanism is in sliding fit with the lower die through the guide plates.

As described above, the utility model discloses a negative angle flanging dies has following beneficial effect:

because the lower flanging mechanism is in sliding fit with the lower die, the driving piece can drive the lower flanging mechanism to act and the negative angle flanging assembly to cooperate to complete the negative angle flanging of the part when the upper die moves downwards.

Due to the arrangement of the reset component, the negative angle part of the part is separated from the lower flanging mechanism after the negative angle flanging of the part is completed by the lower flanging mechanism and the upper flanging mechanism, so that the part negative angle part and the lower flanging mechanism are blocked when the part is grabbed by the grabbing tool in the upward movement process of the part, and the part processing efficiency is effectively improved.

Drawings

Fig. 1 is a schematic structural view of the embodiment of the present invention in the state of matching the upper flanging mechanism and the lower flanging mechanism.

Fig. 2 is another schematic structural diagram of the embodiment of the present invention in a state where the upper flanging mechanism and the lower flanging mechanism are engaged.

Fig. 3 is a schematic structural diagram of the upper flanging mechanism and the lower flanging mechanism in the embodiment of the present invention in a matching state.

Fig. 4 is a schematic view of an installation structure of the lower flanging mechanism on the lower die in the embodiment of the present invention.

Fig. 5 is a schematic view of an installation structure of the upper flanging mechanism on the upper die in the embodiment of the present invention.

Fig. 6 is a schematic structural view of a negative angle flanging die processing part in the embodiment of the present invention.

Detailed Description

Reference numerals in the drawings of the specification include: the device comprises a push block 1, a matching block 2, a slide block 3, an insert 4, a flanging press block 5, a limiting block 6, a blocking part 7, a nitrogen spring 8, a lower die 9, a driving block 10, an upper die 11, an installation frame 12, a part 13, a negative angle part 14 and a guide plate 15.

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Examples

As shown in fig. 1 to 6, the present embodiment provides a negative-angle burring die, including: go up mould 11 and lower mould 9, lower mould 9 middle part is provided with installation frame 12, installs turn-ups mechanism down in the installation frame 12. An upper flanging mechanism is arranged on the upper die 11.

Guide plates 15 for guiding the movement direction of the lower flanging mechanism are fixed on the two sides and the bottom of the lower flanging mechanism, and the guide plates 15 are in sliding fit with the lower die 9. The lower flanging mechanism comprises a matching block 2, a sliding block 3 and an insert 4, a first reset piece used for driving the sliding block 3 to move is fixed on the matching block 2, one end of the first reset piece is fixed with the matching block 2, and the other end of the first reset piece is a free end used for abutting against the sliding block 3. The insert 4 is positioned on the side of the slide block 3 away from the mating block 2, i.e. the slide block 3 is positioned between the insert 4 and the mating block 2, and the insert 4 is fixed on the slide block 3. The slide block 3 is provided with a second reset piece for driving the insert 4 to be separated from the part 13, one end of the second reset piece is fixed with the slide block 3, and the other end of the second reset piece is a free end for abutting against the mounting frame 12.

The insert 4 is matched with the part 13, namely, the side surface of the insert 4 away from the slide block 3 is a circular arc surface which is matched with a negative angle part 14 required to be processed by the part 13, and the circular arc surface is an obstruction part 7 which is easy to cause blocking resistance to the part 13. A limiting block 6 is arranged below the arc surface of the insert 4, and the limiting block 6 is used for limiting the advancing position of the slide block 3.

The upper flanging mechanism comprises a push block 1, a flanging press block 5 and a driving block 10 used for driving the flanging press block 5 to move, the driving block 10 is rotatably connected with an upper die 11, the flanging press block 5 is fixed on the driving block 10, and the driving block 10 drives the flanging press block 5 to move so as to realize negative-angle flanging of the part 13. One side surface of the flanging press block 5, which is far away from the driving block 10, is an arc surface, and the arc surface is matched with the arc surface on the insert 4. Ejector pad 1 is fixed on last mould 11, and the inclined plane cooperation between ejector pad 1 and the cooperation piece 2, all be provided with the inclined plane on cooperation piece 2 and the ejector pad 1 promptly, the inclined plane on the cooperation piece 2 sets up towards 3 direction slopes of slider.

During specific implementation, cover part 13 on insert 4, then go up mould 11 and descend, the inclined plane on the ejector pad 1 and the inclined plane contact on the cooperation piece 2 for ejector pad 1 moves to slider 3 direction along baffle 15, makes slider 3 drive insert 4 motion target in place, makes stopper 6 and installation frame 12 support and leans on, and simultaneously, drive block 10 drives the upset of turn-ups briquetting 5 realization part 13 along with last mould 11 in-process down.

After the negative-angle flanging of the part 13 is completed, the upper die 11 moves upwards, the upper die 11 is separated from the lower die 9, so that the flanging press block 5 is separated from the negative-angle part 14 of the part 13, and the push block 1 is separated from the matching block 2 along with the upward movement of the upper die 11. The first reset piece and the second reset piece drive the matching block 2 and the sliding block 3 to reset, so that the insert 4 is withdrawn from the negative angle area of the part 13, the insert 4 is separated from the part 13, the part 13 can be automatically grabbed by the grabbing tool at the moment, and the part 13 is separated from the insert 4 at the moment, so that the grabbing tool cannot be blocked with the insert 4 in the ascending process of grabbing the part 13. Negative angle turn-ups mould in this scheme need not electric elements to drive the negative angle turn-ups (also be the formation of negative angle position 14) that realizes part 13 carrying out negative angle turn-ups in-process to part 13, and the negative angle turn-ups of part 13 is through the drive block with go up the structure combination of mould rotation connection go up mould 11 and go down alright realization, simple structure, compare with the drive realization negative angle turn-ups that uses electric elements, and stability in use is good. In addition, the part 13 in the scheme has a negative angle, so that the part 13 with the turned-over negative angle is not suitable for the separation of the part 13 and the insert 4 by the ejection mode of the existing ejection mechanism, and the reason is that the part 13 is extremely easy to be clamped on the insert 3 due to the shape limitation of the part 13 in the ejection process of the part 13 by the ejection mechanism. The scheme realizes the automatic separation of the insert 4 and the part 13, and avoids the blockage of the part 13 when the part 13 is grabbed by the grabbing tool.

The first and second reset members in this embodiment are both nitrogen springs 8.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. 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 the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A negative angle flanging die is characterized by comprising an upper flanging mechanism and a lower flanging mechanism which are used for matching to carry out negative angle flanging on a part, wherein the upper flanging mechanism is fixedly arranged on an upper die, and the lower flanging mechanism is arranged on a lower die and is in sliding fit with the lower die; the lower flanging mechanism comprises a driving piece for driving the lower flanging mechanism to act on the lower die and a negative angle flanging assembly for carrying out negative angle flanging on parts on the lower flanging mechanism, and a reset mechanism for resetting the lower flanging mechanism is arranged on the lower flanging mechanism; when the part is subjected to negative angle flanging, the upper flanging mechanism is positioned between the driving part and the negative angle flanging assembly, and the driving part pushes the lower flanging mechanism to act towards the direction of the negative angle flanging assembly to realize the negative angle flanging of the part; after the flanging of the negative angle of the part is finished, the reset mechanism acts to enable the lower flanging mechanism to act towards the driving piece, and the negative angle part of the part is separated from the lower flanging mechanism.

2. The negative angle flanging die of claim 1, wherein the lower flanging mechanism comprises a matching block, a sliding block and an insert matched with the negative angle flanging shape required by a part, the sliding block is positioned between the matching block and the insert, the insert is fixed on the sliding block, an arc surface matched with the negative angle part of the part after the negative angle flanging is arranged on the insert, and the matching block is used for being matched with a driving piece.

3. The negative flanging die of claim 2, wherein a mounting frame is fixed on the lower die, and the lower flanging mechanism is mounted in the mounting frame.

4. The negative-angle flanging die of claim 3, wherein the resetting mechanism comprises a first resetting piece and a second resetting piece, one end of the first resetting piece is fixed with the matching block, and the other end of the first resetting piece is a free end used for abutting against the sliding block; the second resets one end and slider fixed, the second resets the other end for being used for with the free end that the installation frame leaned on.

5. The negative-angle flanging die of claim 4, wherein a limiting block for abutting against the mounting frame to limit the movement of the insert is arranged at the bottom of the insert.

6. The negative flanging die of claim 2, wherein the driving member is a push block, the push block is fixed on the upper die, and the push block is matched with the inclined surface of the matching block.

7. The negative angle flanging die of claim 2, wherein the negative angle flanging assembly comprises a driving block and a flanging pressing block, the driving block is rotatably connected with the upper die, the flanging pressing block is fixed on the driving block, an arc surface matched with the arc surface on the insert block is arranged on the flanging pressing block, and when a part is subjected to negative angle flanging, the arc surface on the flanging pressing block abuts against the part and presses the part towards the arc surface on the insert block.

8. The negative flanging die of claim 4, wherein the first and second restoring members are both nitrogen springs.

9. The negative-angle flanging die of any one of claims 2-8, wherein guide plates are arranged at the bottoms and the side faces of the matching blocks and the sliding blocks, and the flanging mechanism is in sliding fit with the lower die through the guide plates.