CN218049909U - Sheet metal bending and ribbing one-step forming die structure - Google Patents

Abstract

The utility model discloses a panel beating is bent and is pressed muscle one shot forming mould structure, including last die body, lower die body and press muscle structure. The upper die body and the lower die body are in open-close die matching with each other, the upper end part of the lower die body is provided with a bending forming matching groove with an upward notch, and the bending forming matching groove extends along the left and right directions of the lower die body; the lower end part of the upper die body is provided with a bending punch matched with the bending forming matching groove for bending, and the bending punch extends into the bending forming matching groove when the upper die body and the lower die body are assembled; the rib pressing structure comprises a concave structure and a convex structure which are matched with each other, the convex structure is arranged in the bending forming matching groove and is lower than the notch of the bending forming matching groove, the concave structure is arranged at the bending punch, and the convex structure extends into the concave structure when the upper die body and the lower die body are closed. The utility model discloses a panel beating is bent and is pressed muscle one shot forming die structure can accomplish bending and the shaping play of panel beating and press the muscle at the compound die in-process of last die body and lower die body, has improved the precision of work efficiency and product.

Description

Sheet metal bending and ribbing one-step forming die structure

Technical Field

The utility model relates to a panel beating punching press field of bending especially relates to a panel beating is bent and is pressed muscle one shot forming mould structure.

Background

As shown in fig. 1 and 2, the sheet metal 200 has a pre-bent structure 230, a V-shaped structure 220 and a plurality of ribs 210 formed on the V-shaped structure 220, so as to increase the strength of the V-shaped structure 220 by means of the ribs 210.

At present, for the sheet metal 200, a flat plate body 240 with a pre-bent structure 230 is bent to form a V-shaped structure 220, and then ribs 220 are punched on the V-shaped structure 220, so that the sheet metal 200 needs to be manufactured by secondary forming; just because the manufacturing of panel beating 200 needs to go through the post forming for the production efficiency of panel beating 200 is low, still causes the defect that the product precision is low because of many times location.

Therefore, there is a need for a one-step forming die structure for bending and beading sheet metal, which can improve the working efficiency and the precision of the product, to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an improve panel beating of the precision of work efficiency and product and bend and press muscle one shot forming die structure.

In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a panel beating is bent and is pressed muscle one shot forming mould structure, includes die body, lower die body and rib pressing structure. The lower die body and the upper die body are in open-close die matching, the upper end part of the lower die body is provided with a bending forming matching groove with an upward notch, and the bending forming matching groove extends along the left and right directions of the lower die body; the lower end part of the upper die body is provided with a bending punch matched with the bending forming matching groove for bending, the bending punch extends along the left and right directions of the upper die body, and the bending punch stretches into the bending forming matching groove in a matching manner when the upper die body and the lower die body are assembled; the rib pressing structure comprises a concave structure and a convex structure which are matched with each other, the convex structure is arranged in the bending forming matching groove, the convex structure is lower than a notch of the bending forming matching groove, the concave structure is arranged at the bending punch, and the convex structure extends into the concave structure when the upper die body and the lower die body are assembled.

Preferably, the bending punch is a V-shaped punch, and the bending forming matching groove is a V-shaped groove.

Preferably, the convex structure is located at the center of the bottom of the V-shaped groove, the convex structure is further fixedly connected with the wall of the V-shaped groove, and the concave structure is formed at a sharp corner of the V-shaped punch.

Preferably, the plurality of convex structures are arranged in the V-shaped groove in a row at intervals along the left-right direction of the lower die body, the plurality of concave structures are arranged in a row at intervals on the V-shaped punch along the left-right direction of the upper die body, and the number of the concave structures is the same as the number of the convex structures.

Preferably, the convex structure is a triangular prism.

Preferably, the sharp corner of the V-shaped punch is an arc transition structure, and the sharp corner of the V-shaped groove is an arc transition structure.

Preferably, an included angle between two inclined surfaces of the V-shaped punch is greater than or equal to 60 degrees and less than or equal to 120 degrees.

Preferably, the included angle is 60 degrees, 90 degrees or 120 degrees.

Preferably, a plurality of avoidance spaces which are arranged in a line at intervals along the left-right direction of the upper die body are arranged on the front side and/or the rear side of the upper die body, and the avoidance spaces are located above the bending punch.

Preferably, the avoiding space on the front side of the upper die body penetrates through the upper die body forwards and upwards, and the avoiding space on the rear side of the upper die body penetrates through the upper die body backwards and upwards.

Compared with the prior art, the flat plate body between the upper die body and the lower die body is bent towards the inside of the bending forming matching groove by the bending punch in the process of die assembly of the upper die body and the lower die body because the convex structure is arranged in the bending forming matching groove and is lower than the notch of the bending forming matching groove, the concave structure is arranged at the bending punch, and the convex structure extends into the concave structure when the upper die body and the lower die body are assembled; when the flat plate body is bent to the position in contact with the convex structure by the bending punch and then continues to move in the original direction, the bent part of the flat plate body is upwards stamped by the convex structure, so that the flat plate body is bent and ribs are formed in the one-step die assembly process of the upper die body and the lower die body to obtain a metal plate, and the working efficiency and the product precision are improved.

Drawings

Fig. 1 is a perspective view of a sheet metal.

Fig. 2 is a perspective view of the sheet metal shown in fig. 1 at another angle.

Fig. 3 is the utility model discloses a panel beating is bent and is pressed muscle one shot forming die structure and be in the stereogram of compound die state.

Fig. 4 is the utility model discloses a panel beating is bent and is pressed muscle one shot forming die structure and be in the stereogram of die sinking state.

Fig. 5 is a perspective view of the sheet metal bending and beading one-step molding die structure shown in fig. 4 at another angle.

Fig. 6 is a plan view of the sheet metal bending and beading one-step molding die structure shown in fig. 3, viewed along arrow a and showing a sheet metal.

Fig. 7 is an internal view of the hidden sheet metal taken along the line D-D in fig. 6.

Fig. 8 is a plan view of the sheet metal bending and beading one-shot forming die structure shown in fig. 4 as viewed along arrow a.

Detailed Description

Embodiments of the present invention will now be described with reference to the drawings, wherein like reference numerals represent like elements throughout.

Referring to fig. 1 to 3, in the process of one-step mold assembly, the sheet metal bending and ribbing one-step molding mold structure 100 of the present invention bends the flat plate 240 with the pre-bending structure 230 into the V-shaped structure 220 and the ribs 210, so as to obtain the sheet metal 200 shown in fig. 1 and 2.

Wherein, combine fig. 4 to fig. 6, the utility model discloses a panel beating is bent and is pressed muscle one shot forming die structure 100 includes die body 10, lower die body 20 and press muscle structure 30. The lower die body 20 and the upper die body 10 are in open-close die fit with each other to meet the motion requirements of bending and ribbing, it is supplementary noted that the lower die body 20 and the upper die body 10 are assembled at an external punching machine, the punching machine drives the upper die body 10 and the lower die body 20 to perform the open-close die motion, and the specific assembling structures of the punching machine and the upper die body 10 and the lower die body 20 are well known in the art, so the details are not described herein; the upper end of the lower mold body 20 is provided with a bending and forming matching groove 21 with an upward notch 211, the bending and forming matching groove 21 extends along the left and right directions of the lower mold body 20, preferably, the bending and forming matching groove 21 is arranged to penetrate through the lower mold body 20 along the left and right directions of the lower mold body 20, so as to facilitate the manufacturing and processing of the bending and forming matching groove 21 at the lower mold body 20, and of course, the bending and forming matching groove 21 may also be arranged not to penetrate through the lower mold body 20 according to actual requirements. The lower end portion of the upper die body 10 has a bending punch 11 that is bent in cooperation with the bending forming fitting groove 21, the bending punch 11 extends in the left-right direction of the upper die body 10, and the bending punch 11 is inserted into the bending forming fitting groove 21 in a matching manner when the upper die body 10 and the lower die body 20 are clamped, as shown in fig. 3. The rib pressing structure 30 includes a concave structure 31 and a convex structure 32 that are mutually matched, the convex structure 32 is disposed in the bending forming matching groove 21 and is lower than the notch 211 of the bending forming matching groove 21, so that the flat plate 240 placed between the upper die body 10 and the lower die body 20 is bent downward by the bending punch 11 by a preset distance before being stamped by the convex structure 32 on the bending portion of the flat plate 240, the concave structure 31 is disposed at the bending punch 11, and the convex structure 32 extends into the concave structure 31 when the upper die body 10 and the lower die body 20 are assembled, as shown in fig. 7. Specifically, in fig. 8, the bending punch 11 is a V-shaped punch, and the bending forming matching groove 21 is a V-shaped groove, so that in the process of closing the upper die body 10 and the lower die body 20, the bending punch 11, in cooperation with the bending forming matching groove 21, bends the flat plate body 240 with the pre-bending structure 230, which is placed between the upper die body 10 and the lower die body 20, into a V-shaped structure 220, as shown in fig. 6. More specifically, the following:

as shown in fig. 8, the convex structure 32 is located at the center of the bottom of the V-shaped groove, and the convex structure 32 is further fixedly connected to the groove wall 212 of the V-shaped groove, so as to increase the reliability of the fixation between the convex structure 32 and the groove wall 212, preferably, the convex structure 32 is fixed to the groove wall 212 by welding, and of course, according to actual requirements, the convex structure 32 may also be integrated with the groove wall 212, that is, the bending-forming matching groove 21 and the convex structure 32 are machined on the upper end portion of the lower mold body 20 by turning and milling; the concave structure 31 is formed at the sharp corner 111 of the V-shaped punch, and preferably, the concave structure 31 is machined at the sharp corner 111 of the V-shaped punch by a turning and milling process, but not limited thereto. Specifically, with reference to fig. 4 and 5, eight convex structures 32 are arranged in a row spaced apart in the V-shaped groove along the left-right direction of the lower mold body 20, and of course, the number of the convex structures 32 may also be two, three or four, depending on actual needs, and is determined by the number of the ribs 210 required by the sheet metal 200; the female structures 31 are eight and arranged in a line spaced on the V-punch in the left-right direction of the upper die body 10, and the number of the female structures 31 is the same as that of the male structures 32. More specifically, in fig. 4, the convex structures 32 are triangular prisms, which makes the convex structures 32 stronger to further improve the reliability of the formed ribs 210 of the sheet metal 200. In order to avoid the sharp corner 11 of the V-shaped punch being too sharp and easily damaged, in fig. 8, the sharp corner 11 of the V-shaped punch is an arc-shaped transition structure, and correspondingly, the sharp corner 213 of the V-shaped groove is an arc-shaped transition structure; in addition, an included angle α between the two inclined surfaces 112 of the V-shaped punch is greater than or equal to 60 degrees and less than or equal to 120 degrees, for example, 60 degrees, 90 degrees or 120 degrees, so as to meet the angle requirement of the V-shaped structure 220 of the sheet metal 200.

As shown in fig. 3 to 6, the rear side 14 of the upper die body 10 is provided with a plurality of avoidance spaces 12 which are arranged in a line at intervals in the left-right direction of the upper die body 10, and the avoidance spaces 12 are located above the bending punch 11, so as to provide avoidance for the pre-bending structure 230 in the process of bending and beading the flat plate body 240 of the pre-bending structure 230 by means of the avoidance spaces 12, and prevent the pre-bending structure 230 from colliding with the upper die body 10, thereby ensuring the reliability of the flat plate body 240 placed between the upper die body 10 and the lower die body 20 in the process of beading; of course, according to actual needs, the avoidance space 12 may be opened by the front side 13 of the upper mold body 10, or opened by the front side 13 and the rear side 14 of the upper mold body 10, when the avoidance space 12 is opened by the front side 13 and the rear side 14 of the upper mold body 10, there is no limitation on the direction in which the flat plate body 240 with the pre-bending structure 230 is placed between the upper mold body 10 and the lower mold body 20, that is, the pre-bending structure 230 may be arbitrarily directed toward the front side 13 or the rear side 14 because both the front side 13 and the rear side 14 are opened with the avoidance space 12; when the evacuation space 12 is opened only from the front side 13 or the rear side 14 of the upper mold body 10, the pre-bent structure 230 on the flat plate body 240 can only face the front side 13 or the rear side 14 opened with the evacuation space 12. Specifically, in fig. 3 to 5, the evacuation space 12 on the front side 13 of the upper mold body 10 penetrates the upper mold body 10 forward and upward, and the evacuation space 12 on the rear side 14 of the upper mold body 10 penetrates the upper mold body 10 rearward and upward, so as to further improve the evacuation reliability of the evacuation space 12 for the pre-bending structure 230 during the rib bending process of the flat plate body 240.

Compared with the prior art, the convex structure 32 is arranged in the bending forming matching groove 21 and is lower than the notch 211 of the bending forming matching groove 21, the concave structure 31 is arranged at the bending punch 11, and the convex structure 32 extends into the concave structure 31 when the upper die body 10 and the lower die body 20 are closed, so that the flat plate body 240 arranged between the upper die body 10 and the lower die body 20 is bent towards the bending forming matching groove 21 by the bending punch 11 in the process of closing the upper die body 10 and the lower die body 20; when the bending punch 11 bends the flat plate body 240 to a position in contact with the convex structure 32 and then continues to move in the original direction, the convex structure 32 punches the bent part of the flat plate body 240 upwards, so that the flat plate body 240 is bent and the ribs 210 are formed in one-step mold closing process of the upper mold body 10 and the lower mold body 20 to obtain the sheet metal 200 shown in fig. 1, and therefore, the working efficiency and the product precision are improved.

In the drawings, the direction indicated by the arrow a is a direction from left to right of both the upper mold body 10 and the lower mold body 20, the direction indicated by the arrow B is a direction from front to back of both the upper mold body 10 and the lower mold body 20, and the direction indicated by the arrow C is a direction from top to bottom of both the upper mold body 10 and the lower mold body 20.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims (10)

1. A sheet metal bending and rib pressing one-step forming die structure comprises an upper die body and a lower die body which are matched with each other in an opening-closing mode, wherein a bending forming matching groove with an upward notch is formed in the upper end portion of the lower die body, the bending forming matching groove extends along the left direction and the right direction of the lower die body, a bending punch which is matched with the bending forming matching groove to bend is arranged at the lower end portion of the upper die body, the bending punch extends along the left direction and the right direction of the upper die body, the bending punch extends into the bending forming matching groove in a matched mode when the upper die body and the lower die body are assembled, the sheet metal bending and rib pressing one-step forming die structure is characterized by further comprising a rib pressing structure, the rib pressing structure comprises a concave structure and a convex structure which are matched with each other, the convex structure is arranged in the bending forming matching groove, the convex structure is lower than the notch of the bending forming matching groove, the concave structure is arranged at the bending punch, and the concave structure extends into the concave structure when the upper die body and the lower die body are assembled.

2. The sheet metal bending and ribbing one-step forming die structure according to claim 1, wherein the bending punch is a V-shaped punch, and the bending forming matching groove is a V-shaped groove.

3. The sheet metal bending and ribbing one-step forming die structure according to claim 2, wherein the convex structure is positioned at the center of the bottom of the V-shaped groove, the convex structure is further fixedly connected with the wall of the V-shaped groove, and the concave structure is formed at a sharp corner of the V-shaped punch.

4. The sheet metal bending and ribbing one-step forming die structure according to claim 3, wherein the convex structures are a plurality of convex structures which are arranged in the V-shaped groove in a row at intervals along the left and right direction of the lower die body, the concave structures are a plurality of concave structures which are arranged in the V-shaped punch in a row at intervals along the left and right direction of the upper die body, and the number of the concave structures is the same as that of the convex structures.

5. The sheet metal bending and beading one-step molding die structure according to claim 3, wherein the convex structure is a triangular prism.

6. The sheet metal bending and ribbing one-step forming die structure according to claim 2, wherein the sharp corners of the V-shaped punch are arc-shaped transition structures, and the sharp corners of the V-shaped groove are arc-shaped transition structures.

7. The sheet metal bending and beading one-step forming die structure according to claim 2, wherein an included angle between two inclined surfaces of the V-shaped punch is greater than or equal to 60 degrees and less than or equal to 120 degrees.

8. The sheet metal bending and beading one-step forming die structure according to claim 7, wherein the included angle is 60 degrees, 90 degrees or 120 degrees.

9. The sheet metal bending and ribbing one-step forming die structure according to claim 1, wherein a plurality of avoidance spaces are formed in the front side and/or the rear side of the upper die body and are arranged in a line at intervals in the left-right direction of the upper die body, and the avoidance spaces are located above the bending punch.

10. The sheet metal bending and ribbing one-step molding die structure according to claim 1, wherein an avoidance space on the front side of the upper die body penetrates through the upper die body forwards and upwards, and an avoidance space on the rear side of the upper die body penetrates through the upper die body backwards and upwards.

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