Improved flanging wedge structure

Abstract

The utility model relates to the technical field of stamping dies, and discloses an improved flanging wedge structure which comprises a lower die base, an active driving block fixed to an upper die and a flanging sliding block assembly arranged on the lower die base, and the flanging sliding block assembly comprises a sliding block and a flanging type block fixed to the upper portion of the sliding block. The middle portion and the lower portion of the sliding block are each fixedly provided with a nitrogen cylinder, the ends of piston rods of the nitrogen cylinders abut against a lengthened supporting block, and the supporting block is fixed to the lower die base. A passive driving block is fixed to the other upper end, away from the flanging type block, of the sliding block. By increasing the distance between the two nitrogen cylinders, reducing the relative distance between the nitrogen cylinders and the flanging block and arranging the wear-resistant support block below the flanging block, the flanging block can be effectively prevented from inclining, and the flanging quality of products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to an improved flanging bevel wedge structure. Background Art

[0002] The flanging wedge is a mechanism in the stamping die that bends the workpiece. Figure 4 As shown, it includes a slider, a flanging block and a passive driving block arranged at the upper end of the slider, and a nitrogen cylinder arranged at the lower end of the slider; when the active driving block moves downward with the upper die to drive the passive driving block to move, the thrust direction of the passive driving block on the upper end of the slider and the top force direction of the nitrogen cylinder on the lower end of the slider are exactly opposite, and at the same time, the height difference between the points of action of the two forces is large, which causes the upper end of the slider, i.e., the flanging block, to tilt (such as Figure 4 As shown by the dotted arrow), the flanging block fails to flanging the product properly, affecting product quality. Utility Model Content

[0003] The purpose of the utility model is to provide an improved flanging wedge structure, which can effectively prevent the flanging block from tilting by increasing the distance between the two nitrogen cylinders, reducing the relative distance between the nitrogen cylinder and the flanging block, and arranging a wear-resistant support block under the flanging block, thereby improving the flanging quality of the product.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions:

[0005] An improved flanging wedge structure comprises a lower die base, an active drive block fixed to the upper die, and a flanging slider assembly disposed on the lower die base. The flanging slider assembly comprises a slider and a flanging block fixed to the upper portion of the slider. A nitrogen cylinder is fixed to the middle and lower portions of the slider, and the piston rod end of the nitrogen cylinder rests on an extended support block, which is fixed to the lower die base.

[0006] A passive driving block is fixed to the other upper end of the sliding block away from the flanging block.

[0007] The active driving block moves downward with the upper die and abuts against the passive driving block. The passive driving block moves forward under the pushing action of the active driving block. The passive driving block drives the slider forward, thereby driving the flanging block forward, and the flanging block performs flanging work on the workpiece.

[0008] By increasing the distance between the two nitrogen cylinders and arranging one of them in the middle of the slider, the slider can be subjected to a more uniform top force from the nitrogen cylinders. The position of the resultant force of the nitrogen cylinders on the slider moves upward and is closer to the force of the passive drive block on the slider, thereby effectively reducing the inclination of the upper end of the slider and the inclination of the flanging block, thereby improving the flanging quality.

[0009] The utility model is further configured such that the center of the upper nitrogen cylinder is located above the center line of the slider;

[0010] The lower end of the passive driving block extends to the rear side of the upper nitrogen cylinder, which can reduce the position of the resultant force of the passive driving block on the slider and further reduce the inclination of the upper end of the slider.

[0011] The utility model is further configured as follows: a wear-resistant support block is fixed to the upper end of the support block, the wear-resistant support block rests on the lower bottom surface of the flanging block, and the wear-resistant support block supports the lower end of the flanging block, thereby effectively reducing the inclination of the flanging block and further improving the flanging quality; at the same time, the wear-resistant setting of the wear-resistant support block can increase the service life.

[0012] The utility model is further configured as follows: the support block is in the shape of a “𠃍”;

[0013] A first square boss is formed on the lower die base, and two inner straight surfaces of the support block are abutted against and fixed on the first square boss.

[0014] The utility model further features a rear limit movable block fixed to the end of the slider away from the support block, and a rear limit fixed block fixed to the opposite side of the rear limit movable block. The rear limit fixed block is fixed to the lower die base. When the slider moves backward, the rear limit movable block moves backward, pressing against the rear limit fixed block. This limits the position of the slider and the flanged block, shortening the slider's travel, reducing friction, and increasing the overall lifespan of the slider.

[0015] The utility model is further configured as follows: the lower die base is formed with a pair of side supports symmetrically arranged on the left and right, and the slider is located between the two side supports;

[0016] A pair of rectangular bosses are formed on the slider, and the upper ends of the rectangular bosses are against the upper limit pressure block, and the upper limit pressure block is fixed to the upper end of the side support; the bottom of the slider is pressed against the bottom slider, and the bottom slider is fixed on the lower mold base; a pair of side sliders are fixed on the side of the slider, and the side sliders are pressed against the inner side walls of the corresponding support.

[0017] The upper and lower positions of the slider are restricted by the cooperation of the rectangular boss and the upper limit pressure block and the bottom of the slider is pressed against the bottom slider. The left and right positions of the slider can be restricted by the two side sliders, so that the slider can only move in the forward and backward directions under force.

[0018] The outstanding effects of the utility model are:

[0019] Compared with the existing technology, by increasing the distance between the two nitrogen cylinders, reducing the relative distance between the nitrogen cylinder and the flanging block, and arranging a wear-resistant support block under the flanging block, the flanging block can be effectively prevented from tilting and the flanging quality of the product can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 for Figure 1 Sectional view about AA (the dotted line in the drawing indicates the center line of the slider);

[0022] Figure 3 for Figure 2 About the cross-sectional view of BB;

[0023] Figure 4 Schematic diagram of the flanging wedge structure in the prior art.

[0024] Reference numerals: 10, lower die base;

[0025] 101. First square boss; 102. Side support;

[0026] 20. Active drive block;

[0027] 30. Flanging slider assembly;

[0028] 301. Slider; 302. Flanged block; 303. Nitrogen cylinder; 304. Support block; 305. Passive drive block; 306. Wear-resistant support block; 307. Rear limit fixed block; 308. Upper limit pressure block; 309. Bottom slider; 310. Side slider; 311. Rear limit movable block; 3011. Rectangular boss. DETAILED DESCRIPTION

[0029] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0030] The following references Figures 1 to 3 The utility model is described as follows:

[0031] An improved flanging wedge structure includes a lower die base 10, an active drive block 20 fixed to the upper die, and a flanging slider assembly 30 disposed on the lower die base 10. The flanging slider assembly 30 includes a slider 301 and a flanging block 302 fixed to the upper portion of the slider 301. A nitrogen cylinder 303 is fixed to the middle and lower portions of the slider 301. The piston rod end of the nitrogen cylinder 303 rests on an extended support block 304, which is fixed to the lower die base 10.

[0032] A passive driving block 305 is fixed to the other upper end of the slider 301 away from the flanging block 302 .

[0033] The active driving block 20 moves down with the upper mold and abuts against the passive driving block 305. The passive driving block moves forward under the pushing action of the active driving block. The passive driving block drives the slider 301 to move forward, thereby driving the flanging block 302 to move forward. The flanging block 302 performs flanging on the workpiece.

[0034] By increasing the distance between the two nitrogen cylinders 303 and arranging one of them in the middle of the slider, the slider can be subjected to a more uniform push force from the nitrogen cylinders. The position of the resultant force of the nitrogen cylinders on the slider is moved upward and closer to the force of the passive drive block on the slider, thereby effectively reducing the inclination of the upper end of the slider and the inclination of the flanging block, thereby improving the flanging quality.

[0035] The center of the upper nitrogen cylinder 303 is located above the center line of the slider 301;

[0036] The lower end of the passive driving block 305 extends to the rear side of the upper nitrogen cylinder 303, which can reduce the position of the resultant force of the passive driving block on the slider 301 and further reduce the inclination of the upper end of the slider.

[0037] A wear-resistant support block 306 is fixed to the upper end of the support block 304. The wear-resistant support block 306 rests on the lower bottom surface of the flanging block 302. The wear-resistant support block supports the lower end of the flanging block, thereby effectively reducing the inclination of the flanging block and further improving the flanging quality. At the same time, the wear-resistant setting of the wear-resistant support block can increase its service life.

[0038] The support block 304 is in the shape of a “𠃍”;

[0039] A first square boss 101 is formed on the lower die base 10 , and two inner straight surfaces of the support block 304 are abutted against and fixed on the first square boss 101 .

[0040] A rear limit movable block 311 is fixed to the end of the slider 301 away from the support block 304. A rear limit fixed block 307 is located opposite the rear limit movable block 311. The rear limit fixed block 307 is fixed to the lower die base 10. When the slider moves backward, the rear limit movable block moves backward. The rear limit movable block presses against the rear limit fixed block, thereby limiting the position of the slider and the flange block. This reduces the slider's travel, reduces friction, and increases the overall service life of the slider.

[0041] The lower die base 10 is formed with a pair of symmetrical side supports 102, and the slider 301 is located between the two side supports 102;

[0042] A pair of rectangular bosses 3011 are formed on the slider 301, and the upper ends of the rectangular bosses 3011 are abutted against the upper limit pressure block 308, and the upper limit pressure block 308 is fixed to the upper end of the side support 102; the bottom of the slider 301 is pressed against the bottom slider 309, and the bottom slider 309 is fixed to the lower mold base 10; a pair of side sliders 310 are fixed to the side of the slider 301, and the side sliders 310 are pressed against the inner side walls of the corresponding support 102.

[0043] The upper and lower positions of the slider are restricted by the cooperation of the rectangular boss and the upper limit pressure block and the bottom of the slider is pressed against the bottom slider. The left and right positions of the slider can be restricted by the two side sliders, so that the slider can only move in the forward and backward directions under force.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications based on the above assumptions should also be regarded as within the scope of protection of the present invention.

Claims

1. An improved flanging wedge structure, comprising a lower die base (10), an active driving block (20) fixed to an upper die, and a flanging slider assembly (30) disposed on the lower die base (10), characterized in that: The flanging slider assembly (30) includes a slider (301) and a flanging block (302) fixed to the upper portion of the slider (301); a nitrogen cylinder (303) is fixed to the middle and lower portions of the slider (301); the piston rod end of the nitrogen cylinder (303) rests on an extended support block (304), and the support block (304) is fixed to the lower die base (10); A passive driving block (305) is fixed to the other upper end of the slider (301) away from the flanging block (302).

2. The improved flanging wedge structure according to claim 1, characterized in that: The center of the upper nitrogen cylinder (303) is located above the center line of the slider (301); The lower end of the passive driving block (305) extends to the rear side of the upper nitrogen cylinder (303).

3. The improved flanging wedge structure according to claim 1, characterized in that: A wear-resistant support block (306) is fixed to the upper end of the support block (304), and the wear-resistant support block (306) rests on the lower bottom surface of the flanged block (302).

4. The improved flanging wedge structure according to claim 3, characterized in that: The support block (304) is in the shape of a "𠃍"; A first square boss (101) is formed on the lower die base (10), and two inner straight surfaces of the support block (304) are abutted against and fixed on the first square boss (101).

5. The improved flanging wedge structure according to claim 1, characterized in that: A rear limit movable block (311) is fixed to one end of the slider (301) away from the support block (304), and a rear limit fixed block (307) is provided on the opposite side of the rear limit movable block (311). The rear limit fixed block (307) is fixed on the lower die base (10).

6. The improved flanging wedge structure according to claim 1, characterized in that: The lower die base (10) is formed with a pair of side supports (102) symmetrically arranged on the left and right, and the slider (301) is located between the two side supports (102); A pair of rectangular bosses (3011) are formed on the slider (301), and the upper ends of the rectangular bosses (3011) are pressed against the upper limit pressure block (308), and the upper limit pressure block (308) is fixed to the upper end of the side support (102); the bottom of the slider (301) is pressed against the bottom slider (309), and the bottom slider (309) is fixed to the lower mold base (10); a pair of side sliders (310) are fixed to the side of the slider (301), and the side sliders (310) are pressed against the inner side walls of the corresponding support (102).

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