CN210450558U

CN210450558U - Negative angle bending die

Info

Publication number: CN210450558U
Application number: CN201921137499.5U
Authority: CN
Inventors: 万智雄
Original assignee: Guangzhou Minshi Auto Parts Co ltd
Current assignee: Guangzhou Minshi Auto Parts Co ltd
Priority date: 2019-07-18
Filing date: 2019-07-18
Publication date: 2020-05-05
Anticipated expiration: 2029-07-18

Abstract

The utility model discloses a negative angle bending die, including upper die base, die holder, die-cut unit and bending unit, die-cut unit includes cutter and lower cutter, bending unit includes drive block, go up briquetting, oblique slider seat, die, terrace die and horizontal slider, it has the drive inclined plane to go up the drive block to arrange, each terrace die is installed on horizontal slider, be provided with down in the horizontal slider and drive the inclined plane, two dies are installed respectively on the oblique slide rail of oblique slider seat both sides, oblique slider seat is installed on the die holder, the die is provided with first shaping surface, the terrace die is provided with the second shaping surface, the upper end of first shaping surface and second shaping surface points to the center of upper die base respectively, form the space of bending between first shaping surface and the second shaping surface, utilize bending unit to fix a position the work piece, after the compound die, die and terrace die carry out the negative angle bending to the work piece, go up cutter and lower cutter and cut two work pieces, the flanging, bending and punching are realized in the same process, and the development cost and the production cost are saved.

Description

Negative angle bending die

Technical Field

The utility model relates to a mould, especially a negative angle mould of bending in the automobile parts research field.

Background

Rearview mirror reinforcing plate: the material is spcc cold-rolled sheet, the door is divided into two kinds of integral door and semi-open type, the semi-open type window frame part is separated from the inner and outer plates, the inner and outer plates of the door only have the part below the waist line, the window frame is a window guide rail formed by several sections through rolling process or an assembly formed by welding single products of the inner and outer plates of the punch forming B column and a plurality of small stamping parts, then the window frame assembly and the inner plate of the door are connected into a complete door through welding at the waist line position, the part of the rear door close to the rear upright post is mainly formed by welding the inner and outer plates, and the single product, namely the rear view mirror reinforcing plate, mainly plays a role in reinforcing connection. The production process of the rearview mirror reinforcing plate generally adopts two parts in one die, and comprises the following steps: drawing, trimming, flanging and shaping, punching and trimming, separating side flanging, welding a single assembly and welding a door frame assembly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a negative angle mould of bending, it accomplishes the negative angle in a process and bends and die-cut separation.

The utility model provides a solution of its technical problem is: the negative angle bending die comprises an upper die holder and a lower die holder, wherein a punching unit and a bending unit are arranged between the upper die holder and the lower die holder, the punching unit comprises an upper cutter arranged on the upper die holder and a lower cutter arranged on the lower die holder, the bending unit comprises two upper driving blocks, two upper pressing blocks, an inclined slider holder, two female dies, two male dies and two horizontal sliders, the upper driving blocks and the upper pressing blocks are arranged on the upper die holder, the inner side surface of the lower end of the upper driving block is provided with an upper driving inclined surface, each male die is arranged on the horizontal slider, one side of the horizontal slider far away from the male dies is provided with a lower driving inclined surface matched with the upper driving inclined surface, the two female dies are respectively arranged on inclined slide rails on two sides of the inclined slider holder, a female die resetting mechanism for driving the female dies to reset is arranged in the inclined slider holder, the inclined slider holder is arranged on the, the male die is provided with a second molding surface, the upper ends of the first molding surface and the second molding surface respectively point to the center of the upper die base, and a bending space is formed between the first molding surface and the second molding surface.

As a further improvement of the technical scheme, a horizontal reset mechanism for driving the horizontal sliding block to reset is arranged in the lower die holder, and the horizontal reset mechanism comprises a spring fixing seat, a stop block and a horizontal reset spring, wherein the stop block is installed on the lower end face of the horizontal sliding block, and the horizontal reset spring is arranged between the stop block and the spring fixing seat.

As a further improvement of the technical scheme, a reverse side block is arranged on the outer side of the horizontal sliding block, a guide plate is arranged on the upper portion of the inner side face of the reverse side block, and a guide arc face is arranged on the guide plate.

As a further improvement of the technical scheme, the outer side surface of the horizontal sliding block is fixedly provided with buffer glue, and the buffer glue is positioned between the reverse side block and the horizontal sliding block.

As a further improvement of the technical scheme, the die resetting mechanism comprises an ejector pin and a plug screw, one end of the ejector pin penetrates through the inclined sliding block seat and then vertically points to the bottom of the die, and a die spring is arranged between the other end of the ejector pin and the plug screw.

The utility model has the advantages that: the utility model discloses a be provided with die-cut unit and the unit of bending between upper die base and die holder, utilize the unit of bending to fix a position the work piece, behind the compound die, die and terrace die carry out the negative angle to the work piece and bend, go up cutter and lower cutter and cut two work pieces towards, realize in same process that the turn-ups is bent and die-cut, reduce mould and equipment quantity, practice thrift development cost and manufacturing cost.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a schematic structural view of a bending unit of the present invention during mold assembly;

fig. 2 is a schematic structural view of the middle bending unit during die sinking.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions.

Referring to fig. 1-2, the negative angle bending die comprises an upper die holder 1 and a lower die holder 6, wherein a punching unit and a bending unit are arranged between the upper die holder 1 and the lower die holder 6, the punching unit comprises an upper cutter arranged on the upper die holder 1 and a lower cutter arranged on the lower die holder 6, the bending unit comprises two upper driving blocks 2, two upper pressing blocks 3, an inclined slider holder 11, two female dies 10, two male dies 9 and two horizontal sliders 8, the upper driving blocks 2 and the upper pressing blocks 3 are arranged on the upper die holder 1 through fixing blocks, an upper driving inclined plane 20 is arranged on the inner side surface of the lower end of the upper driving block 2, each male die 9 is arranged on the horizontal slider 8, the horizontal slider 8 slides on the lower die holder 6 through a horizontal slide rail, a lower driving inclined plane 80 matched with the upper driving inclined plane 20 is arranged on one side of the horizontal slider 8 far away from the upper driving block 9, the two female dies 10 are respectively arranged, a female die resetting mechanism for driving the female die 10 to reset is arranged in the inclined slider seat 11, the inclined slider seat 11 is installed on the lower die seat 6, a first molding surface 100 is arranged on the side, far away from the inclined slider seat 11, of the female die 10, the male die 9 is provided with a second molding surface 90, the upper ends of the first molding surface 100 and the second molding surface 90 respectively point to the center of the upper die seat 1, namely the first molding surface 100 and the second molding surface 90 are obliquely arranged, the upper end of the first molding surface 100 is far away from the male die 9, the lower end of the first molding surface 100 is close to the male die 9, and a bending space is formed between the first molding surface 100 and the second molding.

A horizontal reset mechanism for driving the horizontal sliding block 8 to reset is arranged in the lower die holder 6 and comprises a spring fixing seat 12, a stop block 14 installed on the lower end face of the horizontal sliding block 8 and a horizontal reset spring 13 arranged between the stop block 14 and the spring fixing seat 12. When the mold is closed, the horizontal slide block 8 carries the stopper 14 to move, and the stopper 14 compresses the horizontal return spring 13. When the mold is opened, the upper driving block 2 moves upwards, and the horizontal return spring 13 drives the horizontal sliding block 8 to return.

The outer side of the horizontal sliding block 8 is provided with a reverse side block 5, the upper part of the inner side surface of the reverse side block 5 is provided with a guide plate 4, and the guide plate 4 is provided with a guide arc surface 40. The medial surface of the anti-side block 5 flushes with the lateral surface of the upper driving block 2, the upper driving block 2 moves downwards, after being contacted with the guide arc surface 40 on the guide plate 4, the upper driving block 2 moves downwards along the anti-side block 5, the upper driving inclined surface 20 is contacted with the lower driving inclined surface 80, the horizontal sliding block 8 is driven to slide towards the middle part of the die, the upper pressing block 3 drives the female die 10 to move downwards along the inclined sliding block of the inclined sliding block seat 11, and the male die 9 and the female die 10 bend workpieces.

And a buffer glue 7 is fixed on the outer side surface of the horizontal sliding block 8, and the buffer glue 7 is positioned between the reverse side block 5 and the horizontal sliding block 8. When the mold is opened, the horizontal sliding block 8 is reset under the action of the horizontal reset spring 13, and the buffer glue 7 prevents the horizontal sliding block 8 from colliding with the reverse side block 5.

The die resetting mechanism comprises a thimble 17 and a plug screw 15, one end of the thimble 17 penetrates through the inclined slider seat 11 and then vertically points to the bottom of the die 10, and a die spring 16 is arranged between the other end of the thimble 17 and the plug screw 15. Two stepped holes are arranged on the inclined slider seat 11, namely one female die 10 corresponds to one stepped hole. One end of the ejector pin 17 points to the bottom of the female die 10 from the small hole of the stepped hole, after the female die spring 16 is installed in the large hole of the stepped hole, the large hole of the stepped hole is sealed through the plug screw 15, and the female die spring 16 is installed between the bolt and the ejector pin 17.

Placing the semi-finished product of the workpiece on a male die 9, positioning the workpiece to enable the position needing punching to be positioned between an upper cutter and a lower cutter, enabling an upper die base 1 to move downwards, and dividing the semi-finished product of the workpiece into two parts by the upper cutter and the lower cutter; go up drive block 2 and descend, after contacting with guide cambered surface 40 on the baffle 4 earlier, go up drive block 2 and descend along anti-side piece 5, go up drive inclined plane 20 and drive inclined plane 80 contact back down, order about horizontal slider 8 and slide towards the mould middle part, go up the upper portion contact of briquetting 3 and die 10, order about die 10 and descend along the oblique slide rail on the slider seat 11 to one side, terrace die 9 and die 10 bend the work piece. After the mold is opened, the ejector pin 17 is driven by the female mold spring 16 to move upwards, so that the female mold 10 moves upwards along the inclined slide rail, and the horizontal return spring 13 drives the horizontal slide block 8 to return.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims

1. Negative angle mould of bending, its characterized in that: the punching unit comprises an upper cutter arranged on the upper die base and a lower cutter arranged on the lower die base, the bending unit comprises two upper driving blocks, two upper pressing blocks, an inclined slider seat, two female dies, two male dies and two horizontal sliders, the upper driving blocks and the upper pressing blocks are arranged on the upper die base, the inner side surface of the lower end of each upper driving block is provided with an upper driving inclined surface, each male die is arranged on the horizontal slider, one side of each horizontal slider far away from the male die is provided with a lower driving inclined surface matched with the upper driving inclined surface, the two female dies are respectively arranged on inclined slide rails on two sides of the inclined slider seat, a female die resetting mechanism for driving the female dies to reset is arranged in the inclined slider seat, the inclined slider seat is arranged on the lower die base, and the side of the female die far away from the inclined slider seat is provided with a first molding surface, the male die is provided with a second molding surface, the upper ends of the first molding surface and the second molding surface respectively point to the center of the upper die base, and a bending space is formed between the first molding surface and the second molding surface.

2. The negative angle bending die of claim 1, wherein: the horizontal reset mechanism for driving the horizontal sliding block to reset is arranged in the lower die holder and comprises a spring fixing seat, a stop block and a horizontal reset spring, wherein the stop block is installed on the lower end face of the horizontal sliding block, and the horizontal reset spring is arranged between the stop block and the spring fixing seat.

3. The negative angle bending die of claim 1, wherein: the outer side of the horizontal sliding block is provided with a reverse side block, the upper part of the inner side surface of the reverse side block is provided with a guide plate, and the guide plate is provided with a guide arc surface.

4. The negative angle bending die of claim 3, wherein: and a buffer glue is fixed on the outer side surface of the horizontal sliding block and is positioned between the reverse side block and the horizontal sliding block.

5. The negative angle bending die of claim 1, wherein: the die reset mechanism comprises a thimble and a plug screw, one end of the thimble penetrates through the inclined sliding block seat and then vertically points to the bottom of the die, and a die spring is arranged between the other end of the thimble and the plug screw.