High-precision bending device

Abstract

The high-precision bending device comprises a base plate, a connecting plate and a bending connecting part, a notch is formed in the surface of the connecting plate, a movable dust blocking assembly is connected to the surface of the connecting plate, and the movable dust blocking assembly comprises a strip-shaped cylinder, a roller shaft, dust blocking leather, an extending groove and a hook. The roller shaft is rotationally connected to the interior of the strip-shaped cylinder, the dust blocking leather is wound on the surface of the roller shaft, and the extending groove is formed in the surface of the strip-shaped cylinder in a penetrating mode; through the designed movable dust blocking assembly and the fixed limiting assembly, dustproof protection can be carried out on a notch, when the mold is not used, dust blocking leather can be pulled out of an extending groove and is blocked and protected on the outer side of the notch, then a hook is hung on a hanging rod, the dust blocking leather is opened and fixed, and the dustproof effect is achieved; and the dust blocking leather can be collected into the strip-shaped cylinder again, the notch is opened, and normal use of the mold is not affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of bending dies, and particularly relates to a high-precision bending device. Background Art

[0002] During the processing of parts, it is often necessary to bend them according to requirements. If manual bending is used, not only is the accuracy poor, but also the force is difficult to control, and it is easy to damage the parts. Therefore, it is necessary to use a special bending die for bending. The inside of the bending die can be additionally provided with a stamping and a hole-opening structure. After the part is bent inside the die, it does not need to be taken out from the inside of the die, and subsequent stamping or hole-opening can be directly carried out inside the die. After the complete processing, it is taken out from the inside of the die. This can avoid the springback or fracture of the die. After various structures are added inside the die, the dust protection of its internal precision components is very important. Especially at the notch position opened on the die, external dust can easily enter the inside of the die from the notch, thus having an adverse impact on the accuracy of the die. Therefore, it is necessary to design a new bending die to solve this problem. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a high-precision bending device to solve the problem that the dust-proof property at the notch position of the die is insufficient, and when the die is static, external dust easily enters the inside of the die as mentioned in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A high-precision bending device includes a base plate, a connecting plate and a bending connecting part. A notch is opened on the surface of the connecting plate. An active dust-proof component is connected to the surface of the connecting plate. The active dust-proof component includes a strip-shaped cylinder, a roller shaft, a dust-proof leather, an extending groove and a hook. The roller shaft is rotatably connected inside the strip-shaped cylinder. The dust-proof leather is wound around the surface of the roller shaft. The extending groove is penetrated and opened on the surface of the strip-shaped cylinder. The end of the dust-proof leather extends out of the extending groove and is fixedly connected to the hook. A fixed limiting component is connected to the surface of the connecting plate. The fixed limiting component includes a fixed rod, a hanging rod and a mounting seat. The hanging rod is adapted to the hook.

[0005] Preferably, both ends of the roller shaft are rotatably connected to the inner walls on both sides of the strip-shaped cylinder, and a torsion spring is connected between the end of the roller shaft and the inner wall of the strip-shaped cylinder.

[0006] Preferably, the active dust-proof component includes a resisting piece and a hook body. The resisting piece abuts against the outer end surface of the extending groove.

[0007] Preferably, the mounting seat is fixed on the surface of the connecting plate, and a sliding groove is opened inside it. The number of the fixed rods is two. The top ends are fixedly connected to both ends of the hanging rod, and the bottom ends are in a T-shaped structure and are slidably connected to the sliding groove inside the mounting seat.

[0008] Preferably, disassembly and assembly components are arranged between both sides of the bottom of the strip-shaped cylinder and the connecting plate. The disassembly and assembly components include a bottom strip, side strips, movable top pieces, insertion rods, insertion holes and springs. The side strips are symmetrically fixed on both sides of the bottom of the strip-shaped cylinder. The bottom strip is fixed on the surface of the connecting plate and has an L-shaped cross section. The side strips are attached to the bottom strip. The movable top pieces are movably connected to the surface of the bottom strip through springs. The insertion rods are fixed to the bottom surfaces of the movable top pieces, and the bottom ends thereof are inserted into the insertion holes formed on the surfaces of the side strips.

[0009] Preferably, a spring groove is formed on the top surface of the bottom strip, and both ends of the spring are respectively fixedly connected to the spring groove and the bottom surface of the movable top piece.

[0010] Preferably, the disassembly and assembly components further include pull rings, and the pull rings are fixedly connected to the top surfaces of the movable top pieces.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] Through the designed movable dust-proof component and fixed limit component, the notch can be protected against dust. When the mold is not in use, the dust-proof leather can be pulled out from the protruding groove and blocked outside the notch. Then, the hook is hung on the hanging rod to open and fix the dust-proof leather to play a dust-proof role. When the mold is in use, the dust-proof leather can be reinserted into the strip-shaped cylinder to open the notch without affecting the normal use of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three-dimensional schematic diagram of the present utility model;

[0014] Figure 2 is a rear view of the connecting plate of the present utility model;

[0015] Figure 3 is a cross-sectional view of the movable dust-proof component and fixed limit component of the present utility model;

[0016] Figure 4 is an enlarged schematic diagram of the disassembly and assembly component of the present utility model;

[0017] In the figure: 100, substrate; 200, connecting plate; 300, bending connection part; 400, notch; 500, movable dust-proof component; 501, strip-shaped cylinder; 502, roller shaft; 503, dust-proof leather; 504, protruding groove; 505, hook; 600, fixed limit component; 601, fixed rod; 602, hanging rod; 603, mounting seat; 700, disassembly and assembly component; 701, bottom strip; 702, side strip; 703, movable top piece; 704, insertion rod; 705, insertion hole; 706, spring; 707, pull ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] Embodiment

[0020] Please refer to Figures 1 to 4 , which is an embodiment of the present utility model. This embodiment provides a technical solution: a high-precision bending device, including a substrate 100, a connecting plate 200 and a bending connection part 300. Inside the bending connection part 300, there are bending accessories such as a bending contact plate. A notch 400 is formed on the surface of the connecting plate 200. A movable dust-proof component 500 is connected to the surface of the connecting plate 200, which can protect the notch 400 from dust. The movable dust-proof component 500 includes a strip-shaped cylinder 501, a roller shaft 502, a dust-proof leather 503, an extending slot 504 and a hook 505. The roller shaft 502 is rotatably connected inside the strip-shaped cylinder 501. Both ends of the roller shaft 502 are rotatably connected to the inner walls on both sides of the strip-shaped cylinder 501, and a torsion spring is connected between the end of the roller shaft 502 and the inner wall of the strip-shaped cylinder 501. The roller shaft 502 can rotate inside the strip-shaped cylinder 501 and can automatically reset. The dust-proof leather 503 is wound around the surface of the roller shaft 502. The extending slot 504 is formed through the surface of the strip-shaped cylinder 501. The end of the dust-proof leather 503 extends out of the extending slot 504 and is fixedly connected to the hook 505. The hook 505 can be pulled to gradually pull the dust-proof leather 503 out of the extending slot 504. A fixed limit component 600 is connected to the surface of the connecting plate 200. The fixed limit component 600 includes a fixed rod 601, a hanging rod 602 and a mounting seat 603. The hanging rod 602 is adapted to the hook 505. The hook 505 can be hooked to the hanging rod 602, so as to open the dust-proof leather 503 for dust-proof protection. Personnel can remove the hook 505 from the hanging rod 602, and the roller shaft 502 resets under the action of the torsion spring to gradually recover the dust-proof leather 503.

[0021] In this embodiment, preferably, the movable dust-proof component 500 includes a supporting piece and a hook body. The supporting piece abuts against the outer surface of the outer end of the extending slot 504 to prevent the dust-proof leather 503 from completely retracting into the strip-shaped cylinder 501.

[0022] In this embodiment, preferably, the mounting base 603 is fixed on the surface of the connecting plate 200. A chute is provided inside it, and the top of the chute is open. There are two fixing rods 601. The top ends are fixedly connected to both ends of the hanging rod 602, and the bottom ends are of a T-shaped structure and are slidably connected to the chute inside the mounting base 603 to complete the installation of the hanging rod 602. Personnel can pull out the bottom ends of the fixing rods 601 from the chute inside the mounting base 603 to complete the disassembly.

[0023] In this embodiment, preferably, disassembly and assembly components 700 are provided between both sides of the bottom of the strip-shaped cylinder 501 and the connecting plate 200. Through the disassembly and assembly components 700, detachable fixed connection between the strip-shaped cylinder 501 and the connecting plate 200 can be completed. The disassembly and assembly components 700 include a bottom strip 701, side strips 702, a movable top piece 703, insertion rods 704, insertion holes 705, and springs 706. The side strips 702 are symmetrically fixed on both sides of the bottom of the strip-shaped cylinder 501. The bottom strip 701 is fixed on the surface of the connecting plate 200 and has an L-shaped cross-section. The side strips 702 are attached to the bottom strip 701 to complete preliminary positioning. The movable top piece 703 is movably connected to the surface of the bottom strip 701 through a spring 706. The insertion rod 704 is fixed to the bottom surface of the movable top piece 703, and the bottom end is inserted into the insertion holes 705 opened on the surface of the side strip 702 to fix the strip-shaped cylinder 501. If disassembly is required, only need to pull up the movable top piece 703 and pull out the bottom end of the insertion rod 704 from the inside of the insertion hole 705. At this time, the fixation between the side strip 702 and the bottom strip 701 is released, and the two are slid and disassembled to complete the disassembly of the movable dust-proof component 500. A spring groove is opened on the top surface of the bottom strip 701, and both ends of the spring 706 are fixedly connected to the spring groove and the bottom surface of the movable top piece 703 respectively to complete the elastic connection between the movable top piece 703 and the bottom strip 701. The disassembly and assembly components 700 further include a pull ring 707, and the pull ring 707 is fixedly connected to the top surface of the movable top piece 703 to facilitate pulling the movable top piece 703.

[0024] Although the embodiments of the present invention have been shown and described (see the above detailed description), for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision bending device, comprising a base plate (100), a connecting plate (200) and a bending connection portion (300), characterized in that: The surface of the connecting plate (200) is provided with a notch (400), and the surface of the connecting plate (200) is connected to a movable dust shield assembly (500), and the movable dust shield assembly (500) comprises a strip-shaped cylinder (501), a roller shaft (502), a dust shield leather (503), an extended groove (504) and a hook (505), wherein the roller shaft (502) is rotatably connected to the inside of the strip-shaped cylinder (501), and the dust shield leather (503) is wound around the roller shaft (502). ) surface, the extension groove (504) is opened through the surface of the strip tube (501), the end of the dust-proof leather (503) extends out of the extension groove (504) and is fixedly connected to the hook (505), and the surface of the connecting plate (200) is connected with a fixed limiting component (600), and the fixed limiting component (600) includes a fixed rod (601), a hanging rod (602) and a mounting seat (603), and the hanging rod (602) is adapted to the hook (505).

2. A high-precision bending device according to claim 1, characterized in that: The two ends of the roller shaft (502) are rotatably connected to the inner walls of the strip cylinder (501) on both sides, and a torsion spring is connected between the end of the roller shaft (502) and the inner wall of the strip cylinder (501).

3. A high-precision bending device according to claim 1, characterized in that: The movable dust shielding assembly (500) comprises a supporting piece and a hook body, and the supporting piece is in contact with the outer end surface of the extension slot (504).

4. A high-precision bending device according to claim 1, characterized in that: The mounting seat (603) is fixed on the surface of the connecting plate (200) and has a sliding groove inside. There are two fixing rods (601), the top end of which is fixedly connected to the two ends of the hanging rod (602), and the bottom end is in a T-shaped structure and is slidably connected to the sliding groove inside the mounting seat (603).

5. The high-precision bending device according to claim 1, characterized in that: A disassembly assembly (700) is provided between the two sides of the bottom of the strip tube (501) and the connecting plate (200), and the disassembly assembly (700) comprises a bottom strip (701), a side strip (702), a movable top sheet (703), an insertion rod (704), a plug hole (705) and a spring (706). The side strips (702) are symmetrically fixed on the two sides of the bottom of the strip tube (501), the bottom strip (701) is fixed on the surface of the connecting plate (200) and has an L-shaped cross section, the side strips (702) are fitted with the bottom strip (701), the movable top sheet (703) is movably connected to the surface of the bottom strip (701) by means of a spring (706), the insertion rod (704) is fixed on the bottom surface of the movable top sheet (703), and the bottom end of the insertion rod (704) is inserted into the plug hole (705) provided on the surface of the side strip (702).

6. A high-precision bending device according to claim 5, characterized in that: A spring groove is provided on the top surface of the bottom strip (701), and two ends of the spring (706) are fixedly connected to the spring groove and the bottom surface of the movable top plate (703) respectively.

7. A high-precision bending device according to claim 6, characterized in that: The disassembly assembly (700) further comprises a pull ring (707), wherein the pull ring (707) is fixedly connected to the top surface of the movable top sheet (703).

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