CN221754393U - A seamless bending die for appearance parts - Google Patents

Abstract

The utility model discloses a seamless bending die for appearance parts, including an upper die assembly and a lower die assembly that can generate relative displacement, the lower die assembly including a lower die, a lower pad being provided below the lower die, support platforms being provided on the left and right sides of the lower die, and the support platforms being fixedly mounted on the upper surface of the lower pad. The utility model places the bending workpiece on the lower die by providing a flap, drives the upper die assembly to move toward the lower die assembly through a hydraulic press, and in the process of the upper die pressing the workpiece into the lower die, the upper die pushes the workpiece and the lower die to move downward, the reset spring is compressed, and since the workpiece contacts the flap plane, the rotating part of the flap rotates in the arc-shaped groove of the lower die, the connecting part always supports the bending part of the workpiece, and the workpiece does not slide relative to the flap during the entire bending process, eliminating the indentations and scratches on the workpiece surface caused by extrusion, and effectively improving the appearance quality and precision of the workpiece.

Description

A seamless bending die for appearance parts

Technical Field

The utility model relates to the technical field of bending molds, in particular to a traceless bending mold for appearance parts.

Background Art

With the increasing popularity of 3C industry products, new products have higher and higher requirements on appearance. High appearance requirements correspond to low yield and high cost. The cost pressure faced by hardware parts manufacturing and processing companies is also increasing. High-quality and low-priced products have spread throughout the market. The quality requirements of 3C products are also getting higher and higher. In order to save production and manufacturing costs, the production process and molds of 3C products are constantly optimized.

After the workpiece is formed on the traditional bending die, there will be bending marks on the surface, which cannot meet the quality requirements of the appearance parts. In view of this, we proposed a mark-free bending die for appearance parts.

Utility Model Content

The utility model aims to solve the shortcomings in the prior art and proposes a seamless bending die for appearance parts.

In order to achieve the above purpose, the utility model adopts the following technical solutions:

A seamless bending die for an appearance product, comprising an upper die assembly and a lower die assembly capable of generating relative displacement;

The lower mold assembly comprises a lower mold, a lower pad is arranged under the lower mold, support platforms are arranged on the left and right sides of the lower mold, the support platforms are fixedly mounted on the upper surface of the lower pad, two symmetrical arc grooves are provided on the lower mold, two flaps are arranged on the lower mold, the flaps comprise a rotating part and a connecting part, the rotating part is embedded in the arc groove, the connecting part movably abuts against the upper surface of the support platform, two guide rods are fixedly mounted on the upper surface of the lower pad, the guide rods pass through one side of the lower mold and are slidably connected thereto, a stop block is fixedly mounted on the top end of the guide rod, four return springs are fixedly mounted on the upper surface of the lower pad, and the return springs are fixedly connected to the lower mold;

The upper mold assembly includes an upper mold, a clamping plate is fixedly installed on the upper surface of the upper mold, an upper pad is fixedly installed on the upper surface of the clamping plate, an upper mold base is fixedly installed on the upper surface of the upper pad, an upper machine platform is fixedly installed on the upper surface of the upper mold base, and the upper machine platform is fixedly connected to the output end of the hydraulic press.

Furthermore, a lower die base is fixedly mounted on the lower surface of the lower pad, a support plate is arranged below the lower die base, three pads are fixedly mounted between the support plate and the lower die base, and a lower machine platform is fixedly mounted on the lower surface of the support plate.

Furthermore, two symmetrical limit blocks are fixedly installed on the upper surface of the support platform, and the connecting portion is located between the two limit blocks.

Furthermore, guide pillars are fixedly installed at the four corners of the lower surface of the upper pad, and guide sleeves matching the guide pillars are fixedly installed at the four corners of the upper surface of the lower pad.

Furthermore, four upper limit posts are fixedly installed on the lower surface of the upper pad, and four lower limit posts are fixedly installed on the upper surface of the lower pad.

Furthermore, the initial position of the flap is flush with the highest point of the lower mold.

The beneficial effects of the utility model are:

1. The utility model places the bent workpiece on the lower die by arranging a flap, and drives the upper die assembly to move toward the lower die assembly through a hydraulic press. In the process of the upper die pressing the workpiece into the lower die, the upper die pushes the workpiece and the lower die to move downward, the reset spring is compressed, and the guide rod guides the movement of the lower die. Since the workpiece is in contact with the flap plane, the rotating part of the flap rotates in the arc-shaped groove of the lower die, and the connecting part always supports the bent part of the workpiece. The workpiece does not slide relative to the flap during the entire bending process, eliminating the indentations and scratches on the workpiece surface caused by extrusion, and effectively improving the appearance quality and precision of the workpiece.

2. The utility model sets guide pins and guide sleeves, which guide the upper mold assembly to move toward the lower mold assembly. The upper limit pin and the lower limit pin can avoid the situation where the upper mold and the lower mold are continuously squeezed and the mold is damaged due to the incorrect setting of the mold height.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a front view schematic diagram of a seamless bending mold for an appearance product proposed by the present invention;

FIG2 is a schematic diagram of a seamless bending mold for an appearance product proposed by the present invention before bending;

FIG3 is a schematic diagram of a seamless bending mold for an appearance product after bending proposed by the present invention;

FIG4 is a partial enlarged schematic diagram of the point A in FIG1 of a seamless bending mold for an appearance product proposed by the present invention;

FIG. 5 is a schematic diagram of a flap structure of a seamless bending mold for an appearance product proposed by the present invention.

In the figure: 1. lower mold; 2. lower pad; 3. support table; 4. arc-shaped groove; 5. flap; 6. rotating part; 7. connecting part; 8. guide rod; 9. stop block; 10. reset spring; 11. upper mold; 12. clamping plate; 13. upper pad; 14. upper mold base; 15. upper machine table; 16. lower mold base; 17. support plate; 18. foot; 19. lower machine table; 20. limit block; 21. guide column; 22. guide sleeve; 23. upper limit column; 24. lower limit column.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

Referring to Figures 1, 2, 3, 4 and 5, a seamless bending mold for an appearance product includes an upper mold assembly and a lower mold assembly that can generate relative displacement;

The lower mold assembly includes a lower mold 1, a lower pad 2 is arranged below the lower mold 1, support platforms 3 are arranged on the left and right sides of the lower mold 1, the support platforms 3 are fixedly installed on the upper surface of the lower pad 2, two symmetrical arc grooves 4 are provided on the lower mold 1, and two flaps 5 are arranged on the lower mold 1, the flaps 5 include a rotating part 6 and a connecting part 7, the rotating part 6 is embedded in the arc groove 4, and the connecting part 7 is movably abutted against the upper surface of the support platform 3, two guide rods 8 are fixedly installed on the upper surface of the lower pad 2, the guide rod 8 passes through one side of the lower mold 1 and is slidably connected thereto, a stop block 9 is fixedly installed on the top of the guide rod 8, four return springs 10 are fixedly installed on the upper surface of the lower pad 2, and the return spring 10 is fixedly connected to the lower mold 1;

The upper die assembly includes an upper die 11, a clamping plate 12 is fixedly installed on the upper surface of the upper die 11, an upper pad 13 is fixedly installed on the upper surface of the clamping plate 12, an upper die base 14 is fixedly installed on the upper surface of the upper pad 13, an upper machine table 15 is fixedly installed on the upper surface of the upper die base 14, and the upper machine table 15 is fixedly connected to the output end of the hydraulic press. The bent workpiece is placed on the lower die 1, and the upper die assembly is driven by the hydraulic press to move to the lower die assembly. In the process of the upper die 11 pressing the workpiece into the lower die 1, the upper die 11 pushes the workpiece and the lower die 1 to move downward, the reset spring 10 is compressed, and the guide rod 8 is pressed against the lower die The movement of 1 plays a guiding role. Since the workpiece is in plane contact with the flap 5, the rotating part 6 of the flap 5 rotates in the arc groove 4 of the lower mold 1, and the connecting part 7 always supports the bent part of the workpiece. The workpiece does not slide relative to the flap 5 during the entire bending process, eliminating the indentations and scratches on the workpiece surface caused by extrusion, effectively improving the appearance quality and precision of the workpiece. After the workpiece is bent and formed, the output end of the hydraulic press is retracted. At this time, the pressure on the lower mold 1 disappears, and the reset spring 10 makes the lower mold 1 move upward and return to its initial position. As the lower mold 1 returns to its original position, the flap 5 also returns to a state flush with the lower mold 1.

1 , the utility model is specifically: a lower die base 16 is fixedly mounted on the lower surface of the lower pad 2 , a support plate 17 is provided below the lower die base 16 , three pads 18 are fixedly mounted between the support plate 17 and the lower die base 16 , and a lower machine platform 19 is fixedly mounted on the lower surface of the support plate 17 .

2 and 3 , the utility model is specifically: two symmetrical limit blocks 20 are fixedly mounted on the upper surface of the support platform 3 , the connecting portion 7 is located between the two limit blocks 20 , and the limit blocks 20 can keep the position of the flap 5 constant.

1 , the utility model is specifically: guide posts 21 are fixedly installed at the four corners of the lower surface of the upper pad 13, and guide sleeves 22 matching the guide posts 21 are fixedly installed at the four corners of the upper surface of the lower pad 2. The guide posts 21 and the guide sleeves 22 guide the process of the upper mold assembly moving to the lower mold assembly.

1 , the utility model is specifically: four upper limit posts 23 are fixedly mounted on the lower surface of the upper pad 13, and four lower limit posts 24 are fixedly mounted on the upper surface of the lower pad 2. The upper limit posts 23 and the lower limit posts 24 can avoid the situation where the upper mold 11 and the lower mold 1 are continuously squeezed and damaged due to incorrect setting of the mold height.

4 , the utility model is specifically: the initial position of the flap 5 is flush with the highest point of the lower mold 1 .

Working principle: Place the bending workpiece on the lower die 1, and use the hydraulic press to drive the upper die assembly to move toward the lower die assembly. The guide column 21 and the guide sleeve 22 guide this process, while the upper limit column 23 and the lower limit column 24 can avoid the situation where the upper die 11 and the lower die 1 are continuously squeezed and the die is damaged due to the incorrect setting of the mold height. When the upper die 11 presses the workpiece into the lower die 1, the upper die 11 pushes the workpiece and the lower die 1 to move downward, the reset spring 10 is compressed, and the guide rod 8 guides the movement of the lower die 1. Plane contact, the rotating part 6 of the flap 5 rotates in the arc groove 4 of the lower mold 1, and the connecting part 7 always supports the bent part of the workpiece. The workpiece does not slide relative to the flap 5 during the entire bending process, eliminating the indentations and scratches on the workpiece surface caused by extrusion, effectively improving the appearance quality and precision of the workpiece. After the workpiece is bent and formed, the output end of the hydraulic press is retracted. At this time, the pressure on the lower mold 1 disappears, and the reset spring 10 moves the lower mold 1 upward to return to its initial position. As the lower mold 1 returns to its original position, the flap 5 also returns to a state flush with the lower mold 1.

The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent 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 a limitation on this patent.

Claims (6)

1. The seamless bending die for the appearance part product is characterized by comprising an upper die assembly and a lower die assembly which can generate relative displacement;

The lower die assembly comprises a lower die (1), a lower base plate (2) is arranged below the lower die (1), supporting tables (3) are arranged on the left side and the right side of the lower die (1), the supporting tables (3) are fixedly arranged on the upper surface of the lower base plate (2), two symmetrical arc-shaped grooves (4) are formed in the lower die (1), two turning plates (5) are arranged on the lower die (1), the turning plates (5) comprise rotating parts (6) and connecting parts (7), the rotating parts (6) are embedded in the arc-shaped grooves (4), the connecting parts (7) are movably abutted to the upper surface of the supporting tables (3), two guide rods (8) are fixedly arranged on the upper surface of the lower base plate (2), the guide rods (8) penetrate through one side of the lower die (1) and are in sliding connection with the upper surface of the lower base plate, stop blocks (9) are fixedly arranged on the top ends of the guide rods (8), four reset springs (10) are fixedly arranged on the upper surface of the lower base plate (2), and the reset springs (10) are fixedly connected with the lower die (1).

The upper die assembly comprises an upper die (11), a clamping plate (12) is fixedly arranged on the upper surface of the upper die (11), an upper base plate (13) is fixedly arranged on the upper surface of the clamping plate (12), an upper die holder (14) is fixedly arranged on the upper surface of the upper base plate (13), an upper machine table (15) is fixedly arranged on the upper surface of the upper die holder (14), and the upper machine table (15) is fixedly connected with the output end of the hydraulic machine.

2. The traceless bending die for the appearance part product according to claim 1, wherein a lower die holder (16) is fixedly arranged on the lower surface of the lower base plate (2), a supporting plate (17) is arranged below the lower die holder (16), three pad feet (18) are fixedly arranged between the supporting plate (17) and the lower die holder (16), and a lower machine table (19) is fixedly arranged on the lower surface of the supporting plate (17).

3. The traceless bending die for the appearance product according to claim 1, wherein two symmetrical limiting blocks (20) are fixedly arranged on the upper surface of the supporting table (3), and the connecting portion (7) is located between the two limiting blocks (20).

4. The traceless bending die for the appearance piece product according to claim 1, wherein guide posts (21) are fixedly arranged at four corners of the lower surface of the upper base plate (13), and guide sleeves (22) matched with the guide posts (21) are fixedly arranged at four corners of the upper surface of the lower base plate (2).

5. The traceless bending die for the appearance product according to claim 1, wherein four upper limit posts (23) are fixedly arranged on the lower surface of the upper base plate (13), and four lower limit posts (24) are fixedly arranged on the upper surface of the lower base plate (2).

6. The traceless bending die for the appearance product according to claim 1, wherein the initial position of the turning plate (5) is flush with the highest point of the lower die (1).