Multi-angle bending one-step forming die structure

Abstract

The utility model discloses a multi-angle bending one-step forming die structure which comprises an upper die nitrogen spring, a bending male die is installed at the bottom of the upper die nitrogen spring, inclined cutting plates are installed on the two sides of the bending male die, a lower die nitrogen spring is further included, and a bending female die is installed on the upper portion of the lower die nitrogen spring. A lower die floating block is installed in the middle of the bending female die, a supporting spring is installed at the bottom of the lower die floating block, and the elasticity of the upper die nitrogen spring is larger than the sum of the elasticity of the lower die nitrogen spring and the supporting spring. Driving sliding blocks are arranged on the two sides of the bending female die, the driving sliding blocks are horizontally connected to the lower die in a sliding mode, return springs are connected between the driving sliding blocks and the side wall of the lower die plate, and the driving sliding blocks are pressed by the beveling plate to slide. The multi-angle bending one-step forming die structure is designed in a stamping die, and bending of products with complex bending structures can be completed at a time in one station of one set of die.

Description

Technical Field

[0001] The utility model belongs to the technical field of vibration tables, and particularly relates to a multi-angle bending one-step forming die structure. Background Art

[0002] The progressive die is a more advanced die in the current production and processing. It combines single-process molds to combine multiple molds together, thereby realizing automated production of multiple processes. It has the advantages of good processing quality, high production efficiency, and fewer operators. It is a major direction of mold design development at this stage.

[0003] like Figure 2 As shown, according to the structural characteristics of the product, first, the product has multiple bending angles, and secondly, the product has bending direction requirements. The drawing requires that the bending direction must be consistent with the rolling direction of the material to ensure the elastic performance of the product.

[0004] At present, similar parts generally adopt the method of developing multiple sets of molds and bending them in steps. There are many problems in using multiple sets of molds for bending.

[0005] 1. Developing multiple sets of molds is very costly.

[0006] 2. Processing multiple sets of molds at the same time requires a lot of space and high energy consumption.

[0007] 3. When processing multiple sets of molds at the same time, they need to be manually transported back and forth, which has high labor costs and low efficiency. There is also a risk of product deformation during the transportation process.

[0008] In view of this, how to design a multi-angle bending one-step forming die structure in a stamping die has become an urgent problem to be solved in this field. Utility Model Content

[0009] The purpose of the present invention is to provide a multi-angle bending one-step forming mold structure to solve the problems raised in the above background technology.

[0010] To achieve the above-mentioned object, the utility model provides the following technical solutions: a multi-angle bending one-step forming die structure, comprising an upper die nitrogen spring, a bending punch installed at the bottom of the upper die nitrogen spring, and bevel plates installed on both sides of the bending punch;

[0011] It also includes a lower die nitrogen spring, a bending die is installed on the upper part of the lower die nitrogen spring, a lower die floating block is installed in the middle of the bending die, a support spring is installed at the bottom of the lower die floating block, and the elastic force of the upper die nitrogen spring is greater than the sum of the elastic forces of the lower die nitrogen spring and the support spring;

[0012] Driving sliders are provided on both sides of the bending die, which are horizontally slidably connected to the lower die. A return spring is connected between the driving slider and the side wall of the lower die plate. The driving slider slides under the downward pressure of the bevel plate.

[0013] It should be noted in the solution that a cutting punch is also installed on one side of the bending punch, and a positioning plate and a cutting die are provided on one side of the bending die, and the positioning plate and the cutting die are positioned opposite to the cutting punch.

[0014] It is further worth mentioning that a ejection spring is installed on one side of the cutting punch. The ejection spring is installed in the upper die seat by screws, passes through the upper pad and the fixed plate, acts on the material strip, and plays a role in pressing the material.

[0015] It should be further explained that, in the state of mold opening, the position of the ejector spring is lower than the cutting punch, and when the punch press moves downward, the ejector spring presses the material strip first.

[0016] As a preferred embodiment, the bevel plate is installed in the fixed plate, with the upper end supporting the upper pad and the lower end being an inclined surface. As the mold moves vertically, it provides driving force for the horizontal movement of the driving slider.

[0017] As a preferred embodiment, the bending punch is installed in the fixed plate, and the clearance with the fixed plate is 0.015 mm on one side.

[0018] Compared with the prior art, the multi-angle bending one-step forming mold structure provided by the present invention has at least the following beneficial effects:

[0019] The multi-angle bending one-step forming mold structure is designed inside the stamping mold. It can complete the bending forming of complex bending structure products at one time in one set of molds and one workstation. It has simple structure, convenient processing, low cost and good effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the multi-angle bending one-step forming mold structure in the mold open state of the utility model.

[0021] Figure 2 It is a schematic diagram of the product of the present utility model.

[0022] Figure 3 This is a schematic diagram of the mold structure for one-step forming of multi-angle bending for qualified products of the utility model in an incompletely closed mold state.

[0023] Figure 4 This is a schematic diagram of the mold structure for multi-angle bending in one step forming of the qualified product of the utility model in a completely closed mold state.

[0024] Figure 5This is a schematic diagram of the structure of the multi-angle bending one-step forming die structure of the utility model, which is installed in the stamping die in the mold open state.

[0025] Figure 6 This is a schematic diagram of the structure of the multi-angle bending one-step forming die structure of the utility model, which is installed in the stamping die in the closed die state. DETAILED DESCRIPTION

[0026] See also Figure 1-6 The present invention provides a multi-angle bending one-step forming mold structure. The upper mold includes an upper mold base 711, an upper pad 712, and a fixed plate 713 fixed in sequence from top to bottom. The nitrogen spring 601 is installed in the upper mold base 711 by screws, passes through the upper pad 712, acts on the bending punch 622, and provides power for the vertical movement of the bending punch. The bending punch 622 is installed in the fixed plate 713, and the clearance between the bending punch 622 and the fixed plate 713 is 0.015mm per side. Bevel plates 621 are installed on both sides of the bending punch 622. The bevel plates 621 are installed in the fixed plate 713, with the upper end supporting the upper pad 712 and the lower end being an inclined surface.

[0027] The lower mold includes a lower supporting plate 726, a lower foot 725, a lower mold base 724, an additional plate 723, a lower pad 722 and a lower mold plate 721 fixed in sequence from bottom to top. The limit block 742 is installed in the lower mold plate 721, as shown in FIG. Figure 6 When the mold is in the closed state, it acts on the fixed plate 713. After the bending is completed, the total height of the mold is limited to prevent the bending punch from continuing to move downward and damaging the mold. There are 4 limit blocks 742 in the mold, which are evenly distributed in the mold. The positioning plate 612 is fixed on the lower template 721 and positioned with pins to ensure accurate position with the lower mold. It provides positioning guidance for cutting the punch 611. There is a slot on the back of the positioning plate 612, the slot width is 0.5mm wider than the width of the material strip, and the slot height is 0.5mm deeper than the thickness of the material strip. It is convenient for feeding the material strip.

[0028] The die also includes a lower die nitrogen spring 603, with a bending die 626 mounted above it. Two evenly distributed bending die springs maintain force balance. The bending die 626 is mounted within the lower plate 722, passing through the lower mold plate 721, with its lower end resting against the additional plate 723. A clearance of 0.015mm exists between the lower mold plate 721 and the lower plate 722, allowing for vertical sliding movement within the lower mold plate 721 and the lower plate 722. As the mold moves vertically, the product is bent and formed.

[0029] A lower die float 623 is installed in the middle of the bending die 626, and a support spring 604 is installed at the bottom of the lower die float 623. The support spring 604 is installed in the lower pad 605, with the lower end supporting the lower support plate 726 and the upper end supporting the lower die float 624, providing power for the vertical movement of the lower die float 623. The lower die float 623 is installed in the additional plate 723, passes through the bending die 626, and in the closed state, the lower end supports the lower pad 605. The clearance between the bending die 626 and the additional plate 723 is 0.015mm, and it can slide vertically in the bending die 626 and the additional plate 723. As the mold moves vertically, the product is bent and formed.

[0030] The elastic force of the upper die nitrogen spring 601 is greater than the sum of the elastic forces of the lower die nitrogen spring 603 and the support spring 604;

[0031] Driving sliders 625 are provided on both sides of the bending die 626. The driving sliders 625 are horizontally slidably connected to the lower die. A return spring 624 is connected between the driving sliders 625 and the side walls of the bending die 626. The driving sliders 625 slide under the downward pressure of the bevel plate 621.

[0032] A cutting punch 611 is also mounted on one side of the bending punch 622. A positioning plate 612 and a cutting die 613 are provided on one side of the bending die 626. The cutting die 613 is mounted in the lower mold plate 721 and cooperates with the cutting punch 611 to cut the material strip. The positioning plate 612 and the cutting die 613 are positioned opposite the cutting punch 611.

[0033] A material ejection spring 602 is also installed on one side of the cutting punch 611. The material ejection spring 602 is installed in the upper die seat 711 by screws, passes through the upper pad 712 and the fixed plate 713, acts on the material strip, and plays a role in pressing the material. Figure 5 As shown, in the mold open state, the position of the ejector spring 602 is lower than the cutting punch 611. When the punch press moves downward, the ejector spring 602 first presses the material strip.

[0034] Working principle: 1. First, as the punch moves downward, the upper die moves downward in a straight line with the punch as a whole, and the ejector spring 602 contacts the upper surface of the material strip and presses the material strip to prevent the material strip from moving back and forth horizontally and affecting the dimensional stability of the product.

[0035] The punch press continues to move downward, the cutting punch 611 passes through the positioning plate 612 to contact the material strip, and cooperates with the cutting die 613 to cut the material strip. At the same time, the bending punch 622 and the lower die floating block 623 cooperate to press the material strip.

[0036] The punch press continues to move downward, and the bending punch 622 and the lower die float 623 cooperate to press the material strip downward until it contacts the bending die 626, completing the partial bending of the product.

[0037] The punch press continues to move downward, and the bending punch 622, the lower die float 623 and the bending die 626 press the material strip downward until the lower end of the bending die 626 presses against the lower pad 723 and the lower end of the lower die float 623 presses against the lower pad 605, completing the partial bending of the product.

[0038] The punch press continues to move downward, pressing the bending punch 622, the bending die 626 and the lower die float 623, and the upper die nitrogen spring 601 is forced to retreat. At the same time, the bevel 621 moves downward, and the inclined surface of the bevel 621 contacts the inclined surface of the lower die slider 625, driving the slider 625 to move horizontally, pushing and bending the product sideways.

[0039] The punch press continues to move downward to the bottom dead center, the bevel 621 drives the slider 625 to push sideways, and the product bending is completed. The fixed plate 713 contacts the limit block 742, and the mold is completely closed.

[0040] 2. The punch moves upward, the bevel plate 621 moves upward, and the slider 625 retreats under the action of the return spring 624.

[0041] The punch press continues to move upward, and the bending punch 622, the bending die 626 and the lower die float 623 press the product upward.

[0042] The punch press continues to move upward to the top dead center, the upper and lower molds separate, and the product hangs on the bending punch 622. After bending, the product is pushed out of the bending punch 622 from the cylinder side, thus completing a complete working cycle.

Claims

1. Multi-angle bending one-step forming mold structure, characterized by: It comprises an upper mold nitrogen spring (601), a bending punch (622) is installed at the bottom of the upper mold nitrogen spring (601), and bevel plates (621) are installed on both sides of the bending punch (622); It also includes a lower die nitrogen spring (603), a bending die (626) is installed on the upper part of the lower die nitrogen spring (603), a lower die floating block (623) is installed in the middle of the bending die (626), a support spring (604) is installed at the bottom of the lower die floating block (623), and the elastic force of the upper die nitrogen spring (601) is greater than the sum of the elastic forces of the lower die nitrogen spring (603) and the support spring (604); Driving sliders (625) are provided on both sides of the bending die (626). The driving sliders (625) are horizontally slidably connected to the lower die. A return spring (624) is connected between the driving sliders (625) and the lower die plate (721). The driving sliders (625) slide when pressed downward by the bevel plate (621).

2. The multi-angle bending one-step forming mold structure according to claim 1, characterized in that: A cutting punch (611) is also installed on one side of the bending punch (622), and a positioning plate (612) and a cutting die (613) are provided on one side of the bending die (626). The positioning plate (612) and the cutting die (613) are positioned opposite to the cutting punch (611).

3. The multi-angle bending one-step forming mold structure according to claim 2, characterized in that: A material ejection spring (602) is also installed on one side of the cutting punch (611). The material ejection spring (602) is installed in the upper die seat (711) through screws, passes through the upper pad (712) and the fixed plate (713), acts on the material strip, and plays a material pressing role.

4. The multi-angle bending one-step forming mold structure according to claim 3, characterized in that: In the mold-opening state, the position of the ejector spring (602) is lower than the cutting punch (611), and when the punch press moves downward, the ejector spring (602) first presses the material strip.

5. The multi-angle bending one-step forming mold structure according to claim 1, characterized in that: The bevel plate (621) is installed in the fixed plate (713), with the upper end supporting the upper pad (712) and the lower end being an inclined surface. As the mold moves vertically, it provides driving force for the horizontal movement of the driving slider (625).

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