Bending machine die suitable for multi-radian circular face machining

Abstract

The utility model discloses a bending machine die suitable for multi-radian circular face machining, and belongs to the technical field of bending machines. A bending machine die suitable for multi-radian round face machining comprises an upper support and a lower support, a multi-radian round face upper die is installed in the upper support, a multi-radian round face lower die is connected into the lower support in a sliding mode, and servo motors and bevel gears are installed at the upper end of the upper support and the lower end of the multi-radian round face lower die. The bending machine die solves the problem that an existing bending machine die is inaccurate in radian positioning due to the fact that a boss and a groove are used for machining, the four multi-radian circular face upper dies and the corresponding multi-radian circular face lower dies are adopted, and a bevel gear is driven by a servo motor to adjust a driving gear. The position of the bending head, corresponding to the forming groove, of the upper multi-radian circular face die is adjusted, the structure is simple, operation is convenient, and high-precision bending work is achieved through the precise lower multi-radian circular face die and the corresponding upper multi-radian circular face die.

Description

Technical Field

[0001] This utility model relates to the field of bending machine mold technology, specifically a bending machine mold suitable for processing multi-arc circular surfaces. Background Technology

[0002] Bending machines can process workpieces with different size requirements by changing molds of different shapes and specifications. Generally, once the shape and size of the mold are determined, it can only process workpieces of one shape and size. However, in actual work, many workpieces have only very small size variations, so changing the mold wastes production time.

[0003] Patent CN203155830U discloses a bending die, including a spherical upper die and a lower die. The lower die includes primary bosses symmetrically arranged on both sides and a U-shaped groove formed by the primary bosses. The spherical upper die and the U-shaped groove are matched. The lower die is also provided with a polyurethane pad, with the two ends of the polyurethane pad placed on the primary bosses on both sides. By using this bending die, the product quality can be improved and raw materials can be saved.

[0004] In actual use, the bending machine mold of the above-mentioned patent is not accurately positioned for the arc by processing through bosses and grooves, and the circular surface cannot be adjusted, which affects the accuracy of processing multi-arc circular surfaces and results in poor stability. Utility Model Content

[0005] The purpose of this invention is to provide a bending machine mold suitable for processing multi-arc circular surfaces, which solves the problems mentioned in the background art, such as inaccurate positioning of the arc through the processing of bosses and grooves in the actual use of the bending machine mold, the inability to adjust the circular surface, and the poor accuracy and stability of processing multi-arc circular surfaces.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bending machine mold suitable for processing multi-arc circular surfaces, comprising an upper support and a lower support. The upper support is internally fitted with a multi-arc circular surface upper mold, and the lower support is internally slidably connected to a multi-arc circular surface lower mold. A support frame is welded to the upper end of the lower support, and the upper support is slidably connected to the support frame. A servo motor and a bevel gear are installed at the upper end of the upper support and the lower end of the multi-arc circular surface lower mold.

[0007] Preferably, guide racks are welded to both outer sides of the upper bracket, positioning racks are welded to both sides of the multi-arc circular lower mold, and drive gears are installed on both outer sides of the bevel gear, with the drive gears meshing with the positioning racks and guide racks.

[0008] Preferably, the servo motor is connected to the lower bracket and the support frame by fixing screws, the motor shaft of the servo motor is fixedly connected to the bevel gear, the bevel gear and the drive gear are fixedly connected by a connecting shaft, and the connecting shaft is rotatably connected to the lower bracket and the support frame by bearings.

[0009] Preferably, a workbench is mounted on the upper end face of the lower support, and the workbench has an integrally formed bending opening inside.

[0010] Preferably, the lower mold of the multi-arc circular surface is provided with four integrally formed forming grooves, the internal curvature of the four forming grooves is different, the upper mold of the multi-arc circular surface is provided with four, the lower end of the four upper molds of the multi-arc circular surface is provided with a bending head, and the shape of the four bending heads corresponds to the shape of the four forming grooves.

[0011] Preferably, positioning plates are provided on both sides of the molds on the four multi-arc circular surfaces, and spring rods are installed at the lower ends of the positioning plates. A positioning frame is installed inside the upper support, and sliding grooves are provided on both sides of the positioning frame. The molds on the multi-arc circular surfaces are slidably connected to the upper support through the sliding grooves.

[0012] Preferably, both sides of the positioning frame are provided with integrally formed limiting grooves, the position of the positioning plate corresponds to the position of the limiting grooves, and the two ends of the spring rod are fixedly connected to the positioning frame and the positioning plate respectively.

[0013] Preferably, a bending machine slider is provided above the workbench, and an integrally formed through-hole is provided on the upper end face of the upper support. The position of the bending machine slider corresponds to the position of the bending opening, and the lower end of the bending machine slider passes through the through-hole and abuts against the mold on the multi-arc circular surface.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The mold of this utility model adopts four multi-arc circular surface molds and corresponding multi-arc circular surface lower molds. The servo motor drives the bevel gear adjustment drive gear, which respectively drives the position of the multi-arc circular surface lower mold and the upper support, so that the position of the multi-arc circular surface mold and the bending head corresponding to the forming groove is adjusted. The bending machine drives the bending machine slider to press down on the multi-arc circular surface mold after adjustment. The bending head presses the plate into the forming groove to complete the bending work. The structure is simple and easy to operate. Through the precise multi-arc circular surface lower mold and the corresponding multi-arc circular surface upper mold, high-precision bending work is achieved to improve the work quality.

[0016] 2. In this utility model, both the upper support and the lower multi-arc circular surface mold of the bending die are driven and adjusted by drive gears. The upper support and the lower support frame limit the position of the upper support and the lower multi-arc circular surface mold, and the positioning frame keeps the position of the molds on the four multi-arc circular surfaces stable. After the molds on the multi-arc circular surfaces are pressed down by the slider of the bending machine, the spring rod limits the molds on the multi-arc circular surfaces, so as to facilitate the restoration of the molds on the four multi-arc circular surfaces and realize the processing work of quickly changing the multi-arc circular surfaces. Attached Figure Description

[0017] Figure 1 This is an axonometric view of the front view of this utility model;

[0018] Figure 2 This is a top-view axonometric drawing of the present invention;

[0019] Figure 3 This is an isometric view of the lower support of this utility model from top view;

[0020] Figure 4 This is an axonometric view of the upper support after the mold on the multi-arc circular surface of this utility model has been adjusted.

[0021] Figure 5 This is a top-view isometric view of the mold on the multi-arc circular surface of this utility model;

[0022] Figure 6 This is an isometric view of the upper support of this utility model from top view.

[0023] In the diagram: 1. Upper support; 101. Guide rack; 102. Through-hole; 103. Sliding groove; 104. Positioning frame; 105. Limiting groove; 2. Lower support; 201. Worktable; 202. Support frame; 203. Drive gear; 204. Bevel gear; 205. Bending opening; 206. Servo motor; 3. Multi-arc circular lower mold; 301. Positioning rack; 302. Forming groove; 4. Multi-arc circular upper mold; 401. Bending head; 402. Positioning plate; 403. Spring rod; 5. Bending machine slider. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] To address the issue of inaccurate positioning of arcs in existing bending machine dies during actual use, which rely on bosses and grooves for machining and thus cannot adjust the circular surface, affecting the accuracy of machining multi-arc circular surfaces, please refer to... Figure 1 - Figure 4 This embodiment provides the following technical solution:

[0026] The bending machine mold applicable to multi-arc circular surface processing in this embodiment includes an upper support 1 and a lower support 2. The upper support 1 is equipped with a multi-arc circular upper mold 4, and the lower support 2 is slidably connected to a multi-arc circular lower mold 3. A support frame 202 is welded to the upper end of the lower support 2. The upper support 1 is slidably connected to the support frame 202. A servo motor 206 and a bevel gear 204 are installed at the upper end of the upper support 1 and the lower end of the multi-arc circular lower mold 3. The bending machine mold uses four multi-arc circular upper molds 4 and corresponding multi-arc circular lower molds 3 to perform four-arc adjustment work.

[0027] The servo motor 206 is connected to the lower bracket 2 and the support frame 202 by fixing screws. The motor shaft of the servo motor 206 is fixedly connected to the bevel gear 204. The bevel gear 204 and the drive gear 203 are fixedly connected by a connecting shaft. The connecting shaft is rotatably connected to the lower bracket 2 and the support frame 202 by bearings. The servo motor 206 drives the bevel gear 204 to adjust the drive gear 203, thereby driving the position of the multi-arc circular lower mold 3 and the upper bracket 1 respectively, so that the position of the mold 4 on the multi-arc circular surface and the bending head 401 corresponding to the forming groove 302 are adjusted.

[0028] In addition, a workbench 201 is installed on the upper surface of the lower support 2, and an integrally formed bending opening 205 is provided inside the workbench 201.

[0029] In fact, the lower mold 3 of the multi-arc circular surface has four integrally formed forming grooves 302 inside, and the internal curvature of the four forming grooves 302 is different. There are four upper molds 4 of the multi-arc circular surface, and each of the four upper molds 4 of the multi-arc circular surface is provided with a bending head 401 at its lower end. The shape of the four bending heads 401 corresponds to the shape of the four forming grooves 302. The bending machine drives the bending machine slider 5 to press down on the upper mold 4 of the multi-arc circular surface after the adjustment position. The bending head 401 presses the plate into the forming groove 302 to complete the bending work. The structure is simple and easy to operate. Through the precise lower mold 3 of the multi-arc circular surface and the corresponding upper mold 4 of the multi-arc circular surface, high-precision bending work is achieved to improve the work quality.

[0030] Specifically, the bending machine uses four multi-arc circular surface molds 4 and corresponding multi-arc circular surface lower molds 3. The servo motor 206 drives the bevel gear 204 to adjust the drive gear 203, which in turn drives the position of the multi-arc circular surface lower mold 3 and the upper support 1. This adjusts the position of the multi-arc circular surface molds 4 and the bending head 401 corresponding to the forming groove 302. The bending machine drives the bending machine slider 5 to press down on the multi-arc circular surface molds 4 after adjustment. The bending head 401 presses the plate into the forming groove 302, completing the bending work. The structure is simple and easy to operate. Through the precise multi-arc circular surface lower mold 3 and the corresponding multi-arc circular surface upper mold 4, high-precision bending work is achieved, thereby improving the work quality.

[0031] To address the issue of existing bending machine dies failing to maintain structural stability during long-term operation, please refer to... Figure 1 - Figure 2 , Figure 4 - Figure 6 This embodiment provides the following technical solution:

[0032] In this embodiment, guide racks 101 are welded to both sides of the upper support 1, and positioning racks 301 are welded to both sides of the multi-arc circular lower mold 3. Drive gears 203 are installed on both sides of the bevel gear 204. The drive gears 203 mesh with the positioning racks 301 and guide racks 101. The upper support 1 and the multi-arc circular lower mold 3 of the bending mold are driven and adjusted by the drive gears 203. They are limited by the lower support 2 and the support frame 202 to maintain the positional stability of the upper support 1 and the multi-arc circular lower mold 3.

[0033] It should be noted that positioning plates 402 are provided on both sides of the mold 4 on the four multi-arc circular surfaces. A spring rod 403 is installed at the lower end of the positioning plate 402. A positioning frame 104 is installed inside the upper support 1. Sliding grooves 103 are provided on both sides of the positioning frame 104. The mold 4 on the multi-arc circular surface is slidably connected to the upper support 1 through the sliding grooves 103.

[0034] In addition, both sides of the positioning frame 104 are provided with integrally formed limiting grooves 105. The position of the positioning plate 402 corresponds to the position of the limiting groove 105. The two ends of the spring rod 403 are fixedly connected to the positioning frame 104 and the positioning plate 402 respectively. The positioning frame 104 keeps the position of the mold 4 on the four multi-arc circular surfaces stable.

[0035] A bending machine slider 5 is provided above the workbench 201. An integrally formed through-hole 102 is provided on the upper end face of the upper support 1. The position of the bending machine slider 5 corresponds to the position of the bending opening 205. The lower end of the bending machine slider 5 passes through the through-hole 102 and abuts against the mold 4 on the multi-arc circular surface. After the mold 4 on the multi-arc circular surface is pressed down by the bending machine slider 5, the spring rod 403 limits the mold 4 on the multi-arc circular surface, so that the mold 4 on the four multi-arc circular surfaces can be restored to work, realizing the processing work of quickly changing the multi-arc circular surface.

[0036] Specifically, the upper support 1 of the bending die and the lower die 3 of the multi-arc circular surface are both driven and adjusted by the drive gear 203. They are limited by the lower support 2 and the support frame 202 to maintain the positional stability of the upper support 1 and the lower die 3 of the multi-arc circular surface. The positioning frame 104 keeps the position of the four dies 4 of the multi-arc circular surface stable. After the dies 4 of the multi-arc circular surface are pressed down by the slider 5 of the bending machine, the spring rod 403 limits the dies 4 of the multi-arc circular surface to facilitate the restoration of the dies 4 of the four dies 4 of the multi-arc circular surface, so as to realize the processing work of quickly changing the multi-arc circular surface.

[0037] Working principle: During use, the sheet material to be bent is placed on the workbench 201. The bending machine uses four multi-arc circular surface molds 4 and corresponding multi-arc circular surface lower molds 3. The servo motor 206 drives the bevel gear 204 to adjust the drive gear 203, which in turn moves the positions of the multi-arc circular surface lower mold 3 and the upper support 1. This adjusts the position of the multi-arc circular surface molds 4 and the bending head 401 corresponding to the forming groove 302. The bending machine drives the bending machine slider 5 to press down on the multi-arc circular surface molds 4 after adjustment, and the bending head 401... 1. Press the sheet metal into the forming groove 302 to complete the bending work. The structure is simple and easy to operate. High-precision bending work is achieved through the precise multi-arc circular lower mold 3 and the corresponding multi-arc circular upper mold 4 to improve the work quality. The positioning frame 104 keeps the position of the four multi-arc circular upper molds 4 stable. After the multi-arc circular upper mold 4 is pressed down by the bending machine slider 5, the spring rod 403 limits the multi-arc circular upper mold 4 to facilitate the restoration of the four multi-arc circular upper molds 4 and realize the processing work of quickly changing multi-arc circular surfaces.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A bending machine mold suitable for processing multi-arc circular surfaces, comprising an upper support (1) and a lower support (2), characterized in that, The upper support (1) is equipped with a multi-arc circular surface mold (4) inside, and the lower support (2) is slidably connected to a multi-arc circular surface lower mold (3) inside. A support frame (202) is welded to the upper end of the lower support (2). The upper support (1) is slidably connected to the support frame (202), and a servo motor (206) and a bevel gear (204) are installed at the upper end of the upper support (1) and the lower end of the multi-arc circular surface lower mold (3).

2. The bending machine mold suitable for processing multi-arc circular surfaces according to claim 1, characterized in that, Guide racks (101) are welded to both sides of the upper bracket (1), positioning racks (301) are welded to both sides of the multi-arc circular lower mold (3), and drive gears (203) are installed on both sides of the bevel gear (204). The drive gears (203) mesh with the positioning racks (301) and guide racks (101).

3. The bending machine mold suitable for machining multi-arc circular surfaces according to claim 2, characterized in that, The servo motor (206) is connected to the lower bracket (2) and the support frame (202) by fixing screws. The motor shaft of the servo motor (206) is fixedly connected to the bevel gear (204). The bevel gear (204) and the drive gear (203) are fixedly connected by a connecting shaft, and the connecting shaft is rotatably connected to the lower bracket (2) and the support frame (202) by bearings.

4. The bending machine mold suitable for machining multi-arc circular surfaces according to claim 1, characterized in that, A workbench (201) is installed on the upper end face of the lower support (2), and an integrally formed bending opening (205) is provided inside the workbench (201).

5. The bending machine mold suitable for machining multi-arc circular surfaces according to claim 4, characterized in that, The lower mold (3) of the multi-arc circular surface is provided with four integrally formed forming grooves (302), and the internal curvature of the four forming grooves (302) is different. The upper mold (4) of the multi-arc circular surface is provided with four, and the lower end of the four upper molds (4) of the multi-arc circular surface is provided with a bending head (401). The shape of the four bending heads (401) corresponds to the shape of the four forming grooves (302).

6. The bending machine mold suitable for machining multi-arc circular surfaces according to claim 5, characterized in that, Positioning plates (402) are provided on both sides of the four multi-arc circular molds (4). A spring rod (403) is installed at the lower end of the positioning plate (402). A positioning frame (104) is installed inside the upper bracket (1). A sliding groove (103) is provided on both sides of the positioning frame (104). The multi-arc circular molds (4) are slidably connected to the upper bracket (1) through the sliding groove (103).

7. The bending machine mold suitable for machining multi-arc circular surfaces according to claim 6, characterized in that, Both sides of the positioning frame (104) are provided with integrally formed limiting grooves (105). The position of the positioning plate (402) corresponds to the position of the limiting grooves (105). The two ends of the spring rod (403) are fixedly connected to the positioning frame (104) and the positioning plate (402) respectively.

8. The bending machine mold suitable for machining multi-arc circular surfaces according to claim 7, characterized in that, A bending machine slider (5) is provided above the workbench (201), and an integrally formed through-hole (102) is provided on the upper end face of the upper support (1). The position of the bending machine slider (5) corresponds to the position of the bending opening (205). The lower end of the bending machine slider (5) passes through the through-hole (102) and abuts against the mold (4) on the multi-arc circular surface.

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