Wedge flanging and positioning combined mechanism of stamping die

Abstract

The utility model relates to the technical field of stamping dies, and discloses a wedge flanging and positioning combined mechanism of a stamping die, which is applied to an upper flanging die and comprises a second flanging insert driving block, a first flanging insert driving block and a second flanging insert driving block, when the second flanging insert driving block moves rightwards, the elastic piece is compressed; the flanging insert fixing seat is arranged at the upper right part of the second flanging insert driving block and is in sliding fit with the inclined surface of the second flanging insert driving block; the flanging insert is mounted on the flanging insert fixing seat; and the positioning plate is mounted on the flanging insert fixing seat. In the upward flanging process of the workpiece through the flanging insert, the flanging insert driving block can drive the flanging insert fixing base to drive the positioning plate and the flanging insert to move upwards together, the problems that the positioning plate is installed on the lower die through a connecting rod, and the connecting rod interferes with the flanging insert are solved, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, and more specifically to an inclined wedge flanging and positioning combined mechanism of a stamping die. Background Art

[0002] With the rapid development of the automobile industry, people have higher and higher requirements for automobiles. In order to meet the requirements of strength, function and other aspects, the shape of automobile stamping parts has become more and more complex, and the requirements for stamping dies have become higher and higher. The positioning of sheet metal has a very important impact on the dimensional accuracy, surface quality and production efficiency of parts.

[0003] For the upper flanging die, since the flanging insert needs to move upward, the positioning plate in the prior art is often installed on the lower die base through a connecting rod. During the stamping process, the positioning plate and its connecting rod may interfere with the flanging insert. Due to the use of connecting rods, the position of the part is also limited. The sheet material may move in the die, and the parts will have problems such as unstable dimensional accuracy and surface defects, which seriously affects the production efficiency, the scrap rate is high, and the production cost increases accordingly. Utility Model Content

[0004] The utility model aims to provide a wedge flanging and positioning combined mechanism for a stamping die to solve the problems in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model is implemented by adopting the following technical solutions:

[0006] A wedge flanging and positioning combined mechanism for a stamping die is applied to an upper flanging die, wherein the die comprises an upper die 100, a lower die 200 and a combined mechanism 300, wherein the upper die 100 comprises an upper die die seat 110, an upper die pressing plate 120 and a first flanging insert driving block 130, wherein a first guide surface 131 inclined to the right is provided at the lower right portion of the first flanging insert driving block 130; the lower die 200 comprises a lower die die seat 210 and a lower die punch 220, and the combined mechanism 300 comprises:

[0007] A second flanging insert driving block 310 is slidably disposed on the lower die base 210 in the left-right direction, a second guide surface 311 is disposed at the upper left portion of the second flanging insert driving block 310 and is slidably matched with the inclined surface of the first guide surface 131, and a third guide surface 312 inclined to the left is disposed at the upper right portion of the second flanging insert driving block 310;

[0008] An elastic member 320 connected between the second flanging insert driving block 310 and the lower die base 210, and when the second flanging insert driving block 310 moves to the right, the elastic member 320 is compressed;

[0009] The flange insert fixing seat 330 is arranged at the upper right of the second flange insert driving block 310, and the lower left part of the flange insert fixing seat 330 is provided with a fourth guide surface 331 which is slidably matched with the inclined surface of the third guide surface 312;

[0010] A flanging insert 340 is mounted on the flanging insert fixing seat 330;

[0011] The positioning plate 350 is mounted on the flange insert fixing seat 330 .

[0012] Furthermore, the elastic member 320 is a nitrogen spring.

[0013] Furthermore, a mounting seat 351 connected to the flange insert fixing seat 330 is provided at the bottom of the positioning plate 350, and a strip hole 352 along the left and right direction is opened on the mounting seat 351, so that the position of the positioning plate 350 on the flange insert fixing seat 330 can be adjusted left and right.

[0014] Furthermore, the long side of the positioning plate 350 is arranged along the left-right direction, and the right side thereof is used as a positioning reference.

[0015] Furthermore, a chamfer is provided on the top of the right side of the positioning plate 350 .

[0016] Furthermore, there are a plurality of positioning plates 350 , which are spaced apart along the front-to-back direction.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model provides a combined wedge flanging and positioning mechanism for a stamping die, wherein a positioning plate and a flanging insert are jointly mounted on a flanging insert fixing seat, and during the process of the flanging insert flanging a workpiece upwards, the flanging insert driving block can drive the flanging insert fixing seat to move upwards with the positioning plate and the flanging insert, and the positioning shape of the positioning plate itself ensures that the workpiece is always in contact with the positioning plate during the flanging process. The mechanism has a simple and practical structure, and solves the problem that the positioning plate is installed on the lower die through a connecting rod and the connecting rod interferes with the flanging insert, and has a wide range of practical applications.

[0019] The utility model provides a wedge flanging and positioning combined mechanism for a stamping die, which can arbitrarily select the position of a positioning plate, thereby ensuring the accuracy of positioning, while ensuring the dimensional stability and surface quality of the workpiece, thereby improving production efficiency, reducing the scrap rate, and reducing corresponding production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings:

[0021] Figure 1is a front view of a mold in one embodiment;

[0022] Figure 2 is a front view of an upper die in one embodiment;

[0023] Figure 3 A front view of a lower mold in one embodiment;

[0024] Figure 4 A schematic diagram of the structure of a combined mechanism in one embodiment;

[0025] Figure 5 is a side view of a combined mechanism in one embodiment;

[0026] Figure 6 is a cross-sectional view of a combined mechanism in one embodiment;

[0027] Figure 7 is a cross-sectional view of another position of the combined mechanism in one embodiment;

[0028] 100. upper die, 110. upper die base, 120. upper die pressing plate, 130. first flanging insert driving block, 131. first guide surface;

[0029] 200. lower die, 210. lower die base, 220. lower die punch;

[0030] 300. Combination mechanism, 310. Second flange insert driving block, 311. Second guide surface, 312. Third guide surface, 320. Elastic member, 330. Flange insert fixing seat, 331. Fourth guide surface, 340. Flange insert, 350. Positioning plate, 351. Mounting seat, 352. Strip hole;

[0031] X1. Front, X2. Back, Y1. Right, Y2. Left, Z1. Top, Z2. Bottom. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the utility model is described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, but not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] See also Figures 1 to 7 This embodiment provides a wedge flanging and positioning combination mechanism for a stamping die, which is applied to an upper flanging die to position the process parts.

[0034] The mold includes an upper mold 100 , a lower mold 200 and a combination mechanism 300 .

[0035] The upper die 100 includes an upper die die base 110 , an upper die pressing plate 120 and a first flanging insert driving block 130 .

[0036] The upper mold pressing plate 120 is installed in the upper mold die base 110, the upper mold pressing plate 120 is fixedly connected to the upper mold pressing plate nitrogen spring, the upper mold pressing plate nitrogen spring is fixedly connected to the upper mold die base 110, the upper mold pressing plate 120 is slidably connected to the upper mold die base 110, and the lower surface of the upper mold pressing plate 120 is provided with a part contour surface.

[0037] The first flanging insert driving block 130 is fixedly mounted on the upper die base 110 , and a first guide surface 131 inclined to the right Y1 is disposed at a lower right portion of the first flanging insert driving block 130 .

[0038] The lower die includes a lower die die base 210 and a lower die punch 220 . The lower die punch 220 is fixedly mounted on the lower die die base 210 , and a part conformal surface is provided on the upper surface of the lower die punch 220 .

[0039] The assembly mechanism 300 includes: a second flanging insert driving block 310 , an elastic member 320 , a flanging insert fixing seat 330 , a flanging insert 340 and a positioning plate 350 .

[0040] The second flanging insert driving block 310 is slidably arranged on the lower die holder 210 in the left and right directions. The upper left portion of the second flanging insert driving block 310 is provided with a second guide surface 311 that is slidably matched with the inclined surface of the first guide surface 131. When the first flanging insert driving block 130 follows the upper die holder 110 to move downward Z2, the first guide surface 131 contacts the second guide surface 311, pushing the second flanging insert driving block 310 to move to the right Y1. The upper right portion of the second flanging insert driving block 310 is also provided with a third guide surface 312 that is inclined to the left Y2.

[0041] The elastic member 320 is connected between the second flanging insert driving block 310 and the lower die base 210. When the second flanging insert driving block 310 is forced to move to the right Y1, the elastic member 320 is compressed. When the force is eliminated, the elastic member 320 is reset, driving the second flanging insert driving block 310 to reset. In this embodiment, the elastic member 320 is a nitrogen spring.

[0042] The flanging insert fixing seat 330 is arranged on the upper right side of the second flanging insert driving block 310, and the flanging insert fixing seat 330 is slidably connected with the lower mold punch 220 in the up and down directions. The lower left part of the flanging insert fixing seat 330 is provided with a fourth guide surface 331 which is slidably matched with the inclined surface of the third guide surface 312. When the second flanging insert driving block 310 moves to the right Y1, the third guide surface 312 contacts the fourth guide surface 331, which can push the flanging insert fixing seat 330 to move upward.

[0043] The flanging insert 340 is installed on the flanging insert fixing seat 330 .

[0044] The positioning plate 350 is installed on the flange insert fixing seat 330. In this embodiment, a mounting seat 351 connected to the flange insert fixing seat 330 is provided at the bottom of the positioning plate 350. The mounting seat 351 is provided with a strip hole 352 along the left and right directions, so that the position of the positioning plate 350 on the flange insert fixing seat 330 can be adjusted left and right.

[0045] The long side of the positioning plate 350 is arranged in the left-right direction, and its right side is used as a positioning reference. The top of the right side of the positioning plate 350 is chamfered to facilitate the placement of the workpiece; there are multiple positioning plates 350, which are arranged at intervals along the front X1 and the rear X2.

[0046] The working process of the wedge flanging and positioning combined mechanism of a stamping die provided in this embodiment is as follows:

[0047] The process part is placed on the lower die punch 220 , and the process part is fixed by the cooperation of the conformal surface of the lower die punch 220 and the positioning plate 350 .

[0048] The upper die holder 110 moves downward Z2 under the action of the press slide, and the upper die pressing plate 120 and the first flanging insert driving block 130 move downward Z2 at the same time under the action of the upper die holder 110 .

[0049] The upper mold pressing plate 120 stops moving after contacting the process part, and the upper mold die base 110 continues to move downward Z2. The upper mold pressing plate nitrogen spring begins to be compressed by the upper mold die base 110. The upper mold pressing plate 120 is pressed against the process part by the upper mold pressing plate nitrogen spring and slides relative to the upper mold die base 110.

[0050] The upper die holder 110 continues to move downward Z2 , the first flanging insert driving block 130 contacts the second flanging insert driving block 310 , and the second flanging insert driving block 310 moves horizontally to the right Y1 under the action of the first flanging insert driving block 130 .

[0051] When the second flanging insert driving block 310 moves to the right direction Y1 , the elastic member 320 begins to be compressed by the second flanging insert driving block 310 .

[0052] The second flanging insert driving block 310 contacts the flanging insert fixing seat 330 , and the flanging insert fixing seat 330 moves vertically upward Z1 under the action of the second flanging insert driving block 310 .

[0053] The flanging insert 340 is acted upon by the flanging insert fixing seat 330 and moves upward Z1 at the same time, so as to perform an upper flanging process on the workpiece.

[0054] The positioning plate 350 is acted upon by the flanging insert fixing seat 330 and moves upward Z1 simultaneously with the flanging insert 340 . The positioning shape of the positioning plate 350 itself ensures that the sheet material is always in contact with the positioning plate 350 during the flanging process.

[0055] When the upper flanging is completed, the upper die holder 110 moves upward Z1 under the action of the press slide, and the first flanging insert driving block 130 moves upward Z1 under the action of the upper die holder 110 .

[0056] Due to the action of the upper pressing plate nitrogen spring, the upper mold pressing plate 120 is in a stationary state and slides relatively with the upper mold die holder 110. When the upper pressing plate nitrogen spring is released, the upper mold pressing plate 120 moves upward Z1 together with the upper mold die holder 110.

[0057] As the first flanging insert driving block 130 moves upward, the second flanging insert driving block 310 is not affected by the first flanging insert driving block 130 , but moves to the left direction Y2 under the restoring action of the elastic member 320 .

[0058] As the second flanging insert driving block 310 moves to the left Y2, the flanging insert fixing seat 330 is not affected by the second flanging insert driving block 310, and moves downward Z2 due to its own gravity.

[0059] The flanged insert 340 and the positioning plate 350 are driven by the flanged insert fixing seat 330 to move downward Z2 to restore the initial state.

[0060] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0061] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wedge flanging and positioning combined mechanism for a stamping die, applied to an upper flanging die, the die comprising an upper die (100), a lower die (200) and a combined mechanism (300), the upper die (100) comprising an upper die die seat (110), an upper die pressing plate (120) and a first flanging insert driving block (130), the lower right portion of the first flanging insert driving block (130) being provided with a first guide surface (131) inclined to the right; the lower die comprising a lower die die seat (210) and a lower die punch (220), characterized in that: The combined mechanism (300) comprises: A second flanging insert driving block (310) is slidably arranged on the lower die base (210) in the left-right direction, a second guide surface (311) that is slidably matched with the inclined surface of the first guide surface (131) is arranged at the upper left portion of the second flanging insert driving block (310), and a third guide surface (312) that is inclined toward the left side is arranged at the upper right portion of the second flanging insert driving block (310); an elastic member (320) connected between the second flanging insert driving block (310) and the lower die base (210), and when the second flanging insert driving block (310) moves to the right, the elastic member (320) is compressed; A flanged insert fixing seat (330) is arranged on the upper right of the second flanged insert driving block (310), and a fourth guide surface (331) is provided at the lower left portion of the flanged insert fixing seat (330) for slidingly cooperating with the inclined surface of the third guide surface (312); A flanging insert (340) mounted on the flanging insert fixing seat (330); A positioning plate (350) is mounted on the flanged insert fixing seat (330).

2. The wedge flanging and positioning combined mechanism of a stamping die according to claim 1, characterized in that: The elastic member (320) is a nitrogen spring.

3. The wedge flanging and positioning combined mechanism of a stamping die according to claim 1, characterized in that: A mounting seat (351) connected to the flanged insert fixing seat (330) is provided at the bottom of the positioning plate (350), and a strip hole (352) along the left-right direction is opened on the mounting seat (351), so that the position of the positioning plate (350) on the flanged insert fixing seat (330) can be adjusted left-right.

4. The wedge flanging and positioning combined mechanism of a stamping die according to claim 1, characterized in that: The long side of the positioning plate (350) is arranged in the left-right direction, and its right side is used as a positioning reference.

5. The wedge flanging and positioning combined mechanism of a stamping die according to claim 4, characterized in that: The top of the right side of the positioning plate (350) is chamfered.

6. The wedge flanging and positioning combined mechanism of a stamping die according to claim 4, characterized in that: The positioning plates (350) are provided in plurality and are arranged at intervals along the front-to-back direction.

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