Bending die for part machining

Abstract

The utility model relates to the technical field of part machining equipment, in particular to a bending die for part machining, which comprises a punching machine and a lower die, a hydraulic cylinder is fixedly arranged on the top surface of the punching machine, a hydraulic lifting plate is movably arranged in the middle of the punching machine, and an upper die is fixedly mounted in the center of the bottom surface of the hydraulic lifting plate. A lower die switching rail is fixedly arranged in the middle of the top face of a workbench at the bottom of the punching machine, and lower dies are arranged above the lower die switching rail at equal intervals. The bending die for part machining can effectively prevent a part from deviating towards the two sides or deformation of the two sides of the bending position, it can be guaranteed that the bottom of the bending position of the part can make full contact with the bottom face of the bending groove, and therefore the bending effect is guaranteed, the bending quality is improved, a guide rail is installed on a workbench of a punching machine, automatic lower die switching is achieved, and the production efficiency is improved. And therefore, the parts can be bent at different bending angles, the machining efficiency is improved, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of parts processing equipment, in particular to a bending die for parts processing. Background Art

[0002] A large number of parts and components are needed in industrial production and processing as well as construction projects. According to different use environments and requirements, the size, shape and other specifications of parts are also different. Usually, after the parts are produced and forged into a prototype, they will continue to enter the subsequent further processing process. Stamping and bending is one of the most common process flows. One of the core auxiliary equipment of this process is the mold. The mold provides a template and restriction for the stamping and bending of parts. There are many types of parts, and their bending specifications are also different. Therefore, the mold also has different shapes and designs.

[0003] Most of the existing bending dies lack the limitation of parts, which makes them easy to deflect or deform during stamping. In addition, in the process of stamping and bending with different requirements, the corresponding dies need to be replaced frequently, which is inefficient, time-consuming and labor-intensive.

[0004] In order to solve the above problems, we have made improvements and proposed a bending die for parts processing. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model provides a bending die for parts processing, comprising a punching machine and a lower die, wherein a hydraulic cylinder is fixedly arranged on the top surface of the punching machine, a hydraulic lifting plate is movably arranged inside the middle part of the punching machine, an upper die is fixedly installed at the center of the bottom surface of the hydraulic lifting plate, a lower die switching rail is fixedly arranged in the middle part of the top surface of the workbench at the bottom of the punching machine by bolts, and lower dies are arranged at equal intervals above the lower die switching rail.

[0007] As a preferred technical solution of the utility model, a mold base plate is slidably provided on the top surface of the lower mold switching rail, and the bottom of the lower mold is fixedly welded to the top surface of the mold base plate.

[0008] As a preferred technical solution of the utility model, the lower mold includes a side panel, and the top ends of the front and back sides of the side panel are fixedly welded with external limit side panels. A bending mold is provided at the inner top end of the side panel, and the height of the external limit side panel is greater than the height of the bending mold.

[0009] As a preferred technical solution of the utility model, a bending groove is provided in the middle of the bending mold, and the curvature of the bending groove of each bending mold is different. The four outer surfaces of the bottom end of the bending mold are respectively attached to the top ends of the four side surfaces of the inner wall of the side panel. A rectangular coil spring is arranged inside the side panel, and the top end of the rectangular coil spring is fixedly welded to the center of the bottom surface of the bending mold, and the bottom end of the rectangular coil spring is fixedly welded to the top surface of the mold base plate.

[0010] As a preferred technical solution of the utility model, two inner limit plates are provided at the inner bottom end of the side panel, and the bottoms of the two inner limit plates are fixedly welded to the mold base plate. The two inner limit plates are respectively located on the left and right sides of the rectangular coil spring, and the width of the inner limit plates is equal to the width of the bending mold.

[0011] As a preferred technical solution of the utility model, a translation pad is slidingly arranged inside the lower mold switching rail, the length of the translation pad is equal to the length of the mold base plate, the bottom and top surfaces of the translation pad are respectively abutted against the bottom and top surfaces of the inner wall of the lower mold switching rail, the top surface of the lower mold switching rail is provided with two strip openings, two strip connecting blocks are fixedly welded to the top surface of the translation pad, the top of the connecting block is fixedly welded to the bottom surface of the mold base plate, and the two connecting blocks pass through the two openings respectively.

[0012] As a preferred technical solution of the utility model, a threaded rod is rotatably arranged inside the lower mold switching rail, threaded holes are penetrated through the front and back sides of the translation pad, the threaded rod passes through the threaded holes and is threadedly connected to the translation pad, and a motor is fixedly arranged on the back side of the outer side of the lower mold switching rail, and the rotating shaft of the motor is coaxially fixedly connected to the threaded rod.

[0013] The beneficial effect of the utility model is that when the bending die for processing parts is used for stamping and bending operations, the added external limiting side plates can effectively prevent the parts from shifting to both sides or deforming on both sides of the bending position, thereby improving the bending quality. The internally added limiting plates can ensure that the bottom of the bending position of the parts can fully contact the bottom surface of the bending groove, thereby ensuring the bending effect. Guide rails and multiple movable lower dies equipped with bending grooves of different curvature specifications are installed on the workbench of the punching machine. There is no need to frequently manually replace the dies, and automatic switching of the lower dies can be achieved, so that the parts can be bent at different bending angles, thereby improving processing efficiency and saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1This is a structural schematic diagram of a bending die for parts processing of the utility model;

[0016] Figure 2 This is a schematic diagram of the top view of the lower mold of a bending mold for parts processing of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of a lower mold of a bending mold for parts processing of the utility model;

[0018] Figure 4 It is a partial cross-sectional structural diagram of the right side of the lower die switching rail of a bending die for parts processing of the utility model;

[0019] In the figure: 1. punching machine; 2. hydraulic cylinder; 3. hydraulic lifting plate; 4. upper mold; 5. lower mold switching rail; 6. mold base plate; 7. lower mold; 8. side panel; 9. outer limit side panel; 10. bending mold; 11. bending groove; 12. rectangular coil spring; 13. inner limit plate; 14. translation pad; 15. connecting block; 16. threaded rod; 17. motor. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0021] Example: Figure 1-4 As shown, a bending die for parts processing includes a punching machine 1 and a lower die 7, a hydraulic cylinder 2 is fixedly arranged on the top surface of the punching machine 1, a hydraulic lifting plate 3 is movably arranged inside the middle part of the punching machine 1, an upper die 4 is fixedly installed at the center of the bottom surface of the hydraulic lifting plate 3, a lower die switching rail 5 is fixedly arranged on the middle part of the top surface of the workbench at the bottom of the punching machine 1 by bolts, and a plurality of lower dies 7 are arranged at equal intervals above the lower die switching rail 5, the parts are placed on the top surface of the lower die 7, the punching machine 1 is started to control the hydraulic lifting plate 3 to descend, and at the same time, the loaded upper die 4 is pressed down toward the lower die 7 to perform bending and stamping of the parts.

[0022] A mold base plate 6 is slidably disposed on the top surface of the lower mold switching rail 5 , and the bottom of the lower mold 7 is fixedly welded to the top surface of the mold base plate 6 .

[0023] The lower mold 7 includes a side panel 8, and the top ends of both sides of the side panel 8 are fixedly welded with an outer limit side panel 9. The inner top end of the side panel 8 is provided with a bending mold 10. The height of the outer limit side panel 9 is greater than the height of the bending mold 10. During the bending operation, the parts are placed on the bending mold 10. When pressing down to bend, the outer limit side panel 9 can prevent the parts from moving to both sides during bending or deformation on both sides of the bending position.

[0024] A bending groove 11 is provided in the middle of the bending die 10. The curvature of the bending groove 11 of each bending die 10 is different. The lower die 7 equipped with bending grooves 11 with different curvatures is available. The parts can be bent at different bending angles without frequent manual replacement of the die. The four outer surfaces of the bottom end of the bending die 10 are respectively attached to the top ends of the four side surfaces of the inner wall of the side panel 8. The side panel 8 can ensure that the bending die 10 is lifted and lowered vertically. A rectangular coil spring 12 is arranged inside the side panel 8. The top end of the rectangular coil spring 12 is fixedly welded to the center of the bottom surface of the bending die 10, and the bottom end of the rectangular coil spring 12 is fixedly welded to the top surface of the die base plate 6, which has the effect of buffering and strengthening the interaction force, and is beneficial to the full force bending of the parts.

[0025] Two inner limit plates 13 are provided at the inner bottom end of the side panel 8, and the bottoms of the two inner limit plates 13 are fixedly welded to the mold base plate 6. The two inner limit plates 13 are respectively located on the left and right sides of the rectangular coil spring 12, and the width of the inner limit plates 13 is equal to the width of the bending mold 10, which limits the maximum downward pressing depth of the bending mold 10. When the pressure of the upper mold 4 exceeds the preload force of the rectangular coil spring 12, the bending mold 10 continues to descend until it contacts the inner limit plates 13. At this time, the upper mold 4 continues to press down a little depth, so that the bottom of the bending position of the component can fully contact the bottom surface of the bending groove 11, thereby ensuring the bending effect.

[0026] The lower mold switching rail 5 is internally slidably provided with a translation pad 14, the length of which is equal to that of the mold base plate 6, the bottom and top surfaces of which are respectively in contact with the bottom and top surfaces of the inner wall of the lower mold switching rail 5, the top surface of the lower mold switching rail 5 is provided with two strip-shaped through openings, the top surface of which is fixedly welded with two strip-shaped connecting blocks 15, the top of which is fixedly welded with the bottom surface of the mold base plate 6, the two connecting blocks 15 respectively pass through the two through openings, and the inner wall of the lower mold switching rail 5 is provided with a translation pad 14, the length of which is equal to that of the mold base plate 6, the bottom and top surfaces of the translation pad 14 are respectively in contact with the bottom and top surfaces of the inner wall of the lower mold switching rail 5, the top surface of the lower mold switching rail 5 is provided with two strip-shaped connecting blocks 15, the top of which is fixedly welded with the bottom surface of the mold base plate 6, the two connecting blocks 15 respectively pass through the two through openings, and the inner wall of the lower mold switching rail 5 is provided with a translation pad 14, the length of which is equal to that of the mold base plate 6, the bottom and top surfaces of the lower mold switching rail 5 are respectively provided with a translation pad 14, the top of which is fixedly welded with the bottom surface of the mold base plate 6, the two connecting blocks 15 respectively pass through the two through openings, and the inner wall of the lower mold switching rail 5 is ... A threaded rod 16 is provided for rotation, and threaded holes are provided on the front and back sides of the translation pad 14. The threaded rod 16 passes through the threaded holes and is threadedly connected to the translation pad 14. A motor 17 is fixedly provided on the back side of the outer side of the lower mold switching rail 5. The rotating shaft of the motor 17 is coaxially fixedly connected to the threaded rod 16. The motor 17 is started to drive the threaded rod 16 to rotate, thereby driving the translation pad 14 and the connected mold substrate 6 to move. The lower mold 7 equipped with bending grooves 11 with different curvatures is switched through the movement of the mold substrate 6.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A bending die for parts processing, comprising a punching machine (1) and a lower die (7), characterized in that: A hydraulic cylinder (2) is fixedly arranged on the top surface of the punching machine (1), a hydraulic lifting plate (3) is movably arranged inside the middle of the punching machine (1), an upper mold (4) is fixedly installed at the center of the bottom surface of the hydraulic lifting plate (3), a lower mold switching rail (5) is fixedly arranged in the middle of the top surface of the workbench at the bottom of the punching machine (1) by bolts, and lower molds (7) are arranged at equal intervals above the lower mold switching rail (5).

2. A bending die for parts processing according to claim 1, characterized in that: A mold base plate (6) is slidably disposed on the top surface of the lower mold switching rail (5), and the bottom of the lower mold (7) is fixedly welded to the top surface of the mold base plate (6).

3. A bending die for parts processing according to claim 2, characterized in that: The lower mold (7) comprises a side panel (8), the top ends of both the front and back sides of the side panel (8) are fixedly welded with an outer limit side panel (9), the inner top end of the side panel (8) is provided with a bending mold (10), and the height of the outer limit side panel (9) is greater than the height of the bending mold (10).

4. A bending die for parts processing according to claim 3, characterized in that: A bending groove (11) is provided in the middle of the bending die (10), and the curvature of the bending groove (11) of each bending die (10) is different. The four outer surfaces of the bottom end of the bending die (10) are respectively in contact with the top ends of the four side surfaces of the inner wall of the side panel (8). A rectangular coil spring (12) is provided inside the side panel (8), and the top end of the rectangular coil spring (12) is fixedly welded to the center of the bottom surface of the bending die (10), and the bottom end of the rectangular coil spring (12) is fixedly welded to the top surface of the die base plate (6).

5. A bending die for parts processing according to claim 4, characterized in that: Two inner limit plates (13) are arranged at the inner bottom end of the side panel (8), the bottoms of the two inner limit plates (13) are fixedly welded to the mold base plate (6), the two inner limit plates (13) are respectively located on the left and right sides of the rectangular coil spring (12), and the width of the inner limit plates (13) is equal to the width of the bending mold (10).

6. A bending die for parts processing according to claim 1, characterized in that: A translation pad (14) is slidably arranged inside the lower mold switching rail (5), the length of the translation pad (14) is equal to the length of the mold base plate (6), the bottom surface and the top surface of the translation pad (14) are respectively in contact with the bottom surface and the top surface of the inner wall of the lower mold switching rail (5), the top surface of the lower mold switching rail (5) is provided with two strip-shaped through openings, the top surface of the translation pad (14) is fixedly welded with two strip-shaped connecting blocks (15), the top of the connecting block (15) is fixedly welded to the bottom surface of the mold base plate (6), and the two connecting blocks (15) respectively pass through the two through openings.

7. A bending die for parts processing according to claim 6, characterized in that: A threaded rod (16) is rotatably arranged inside the lower mold switching rail (5), threaded holes are penetrated through the front and back sides of the translation pad (14), the threaded rod (16) passes through the threaded holes and is threadedly connected to the translation pad (14), and a motor (17) is fixedly arranged on the back side of the outer side of the lower mold switching rail (5), and the rotating shaft of the motor (17) is coaxially fixedly connected to the threaded rod (16).

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