Lower die of bending machine

Abstract

The utility model discloses a lower die of a bending machine, which comprises two base dies placed on a workbench of the bending machine and oppositely arranged; the multiple longitudinal base plates are embedded between the two base molds, and the longitudinal base plates are vertically arranged; the first tie rod is detachably tied between the two base molds; the transverse base plates are stacked on the top of the base mold; the top die is laid on the upper portions of the multiple transverse base plates, the top die is detachably tied to the base die through a second tying rod, a shaping groove is defined by the top die, the multiple transverse base plates and the multiple longitudinal base plates, and the shaping groove is formed under an upper die above a workbench of the bending machine; and the counter-force frames are installed on the workbench in a position-adjustable mode, and the opposite sides of the two base molds are connected with the counter-force frames correspondingly. The turnover lower die of the bending machine solves the problem that a turnover lower die of an existing bending machine cannot well meet the bending requirements of different specifications.

Description

Technical Field

[0001] The utility model relates to the technical field of bending machine equipment, in particular to a lower mold of a bending machine. Background Art

[0002] The bending machine is a commonly used sheet metal processing equipment, which is widely used in various fields of mechanical processing. The bending die is an important part of the bending machine. Most of the existing bending dies currently include an upper die protruding downward and a lower die arranged below the upper die. The lower die is provided with an opening or a die groove. The upper die presses the sheet metal placed on the lower die downward so that a part of the sheet metal enters the opening or the die groove, so that the sheet metal on both sides of the opening or the die groove is bent relative to the opening or the die groove.

[0003] However, the existing bending molds (such as the Chinese patent with announcement number CN210754693U) use a flippable lower mold. The lower mold has four sides, and the four sides are provided with V-shaped grooves of different specifications, sizes and angles. The number of V-shaped grooves that can be provided on the side of each lower mold is fixed, which cannot meet the various bending requirements of the bending machine. Utility Model Content

[0004] In order to overcome the defects of the prior art, a lower mold of a bending machine is provided to solve the problem that the reversible lower mold of the existing bending machine cannot meet the bending requirements of different specifications.

[0005] In order to achieve the above object, a lower mold of a bending machine is provided, comprising:

[0006] Two base molds are placed on the working table of the bending machine, and the two base molds are arranged opposite to each other;

[0007] A plurality of longitudinal pads, wherein the plurality of longitudinal pads are embedded between the two base molds and the longitudinal pads are arranged vertically;

[0008] A first tie rod, detachably tied between the two base molds;

[0009] a plurality of transverse pads, the plurality of transverse pads being stacked on top of the base mold;

[0010] A top die is laid on the upper part of the plurality of transverse pads, the top die is detachably tied to the base die through a second tie rod, and a shaping groove is formed between the top die, the plurality of transverse pads, and the plurality of longitudinal pads, and the shaping groove is arranged directly below the upper die above the working table of the bending machine;

[0011] A reaction frame is installed on the workbench in an adjustable manner, and the opposite sides of the two base molds are respectively connected to the reaction frames.

[0012] Furthermore, the two base molds are respectively provided with a first through hole at the opposite ends, and the two ends of the first tie rod can be movably inserted into the first through hole. The two ends of the first tie rod are formed with external threads, and the two ends of the first tie rod are respectively screwed with a first nut, which is pressed against the opposite sides of the two base molds.

[0013] Furthermore, the top mold is provided with a second through hole, the transverse pad is provided with a third through hole, the top of the base mold is provided with a threaded hole, the second through hole, the third through hole and the threaded hole of the base mold are coaxially arranged, and the second tie rod is a countersunk bolt, which is passed through the second through hole and the third through hole and screwed into the threaded hole of the base mold.

[0014] Furthermore, the reaction frame comprises:

[0015] A bottom plate, detachably mounted on the workbench;

[0016] A vertical plate, vertically arranged on one side of the bottom plate and connected to the opposite side of the base mold;

[0017] The diagonal support plate is supported between the bottom plate and the vertical plate.

[0018] Furthermore, there are a plurality of diagonal bracing plates, each of which is arranged along the width direction of the bottom plate, and a plurality of diagonal bracing plates are arranged at intervals along the length direction of the bottom plate.

[0019] The beneficial effect of the utility model is that the lower mold of the bending machine of the utility model splits the traditional lower mold into multiple components, and uses the number of transverse pads and longitudinal pads to adjust the properties and sizes of the shaping grooves of the lower mold to better adapt to various bending requirements, so that the lower mold of the bending machine can be quickly used for bending construction. In addition, after the traditional lower mold is split, when adjusting the properties and sizes of the shaping grooves, workers can more easily carry the transverse pads and longitudinal pads, thereby improving the efficiency of adjusting or replacing the lower mold, reducing the use of large electric lifting workpieces, and reducing costs. In addition, the reaction frame, the first tie rod and the second tie rod can securely install the base mold, the longitudinal pad, the transverse pad, and the top mold on the workbench to bend the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0021] Figure 1 The figure is a schematic structural diagram of the lower mold of the bending machine according to an embodiment of the utility model.

[0022] Figure 2 The figure is a top view of the lower mold of the bending machine according to an embodiment of the utility model. DETAILED DESCRIPTION

[0023] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] Reference Figure 1 and Figure 2 As shown, the utility model provides a lower mold of a bending machine, comprising: a base mold 1, a longitudinal pad 2, a first tie rod 3, a transverse pad 4, a top mold 5, and a reaction frame 6.

[0026] The base mold is in the shape of a long strip. There are two base molds. The cross section of the base mold is rectangular.

[0027] The two base molds are arranged relative to each other and spaced apart from each other. The two base molds have two opposite sides facing each other and two opposite sides facing each other.

[0028] When in use, the base mold is placed on the working table of the bending machine. The two base molds 1 are arranged opposite to each other and a first gap is formed between the two base molds.

[0029] There are multiple longitudinal pads 2. The longitudinal pads are arranged along the length direction of the base mold. The longitudinal pads are arranged vertically. The width of the multiple longitudinal pads after being stacked together is adapted to the width of the first gap. The multiple longitudinal pads 2 are embedded between the two base molds 1.

[0030] The first tie rod 3 is detachably tied between the two base molds 1. In this embodiment, the first tie rods are respectively arranged at the two opposite ends of the base mold. In other embodiments, the middle part of the base mold is further arranged with a first tie rod.

[0031] In this embodiment, the top mold is arranged directly above the top of the base mold. A second gap is formed between the top mold and the base mold. There are multiple transverse pads 4. The height of the multiple transverse pads stacked together is adapted to the width of the second gap.

[0032] See also Figure 1 , multiple transverse pads 4 are stacked on the top of the base mold 1. The top mold 5 is laid on the top of the multiple transverse pads 4. The top mold 5 is detachably tied to the base mold 1 through a second tie rod. The top mold 5 and the multiple transverse pads 4 and the multiple longitudinal pads 2 are surrounded to form a shaping groove A. The shaping groove A is set just below the upper mold above the working table of the bending machine.

[0033] The reaction frame 6 is installed on the workbench in an adjustable position. The opposite sides of the two base molds 1 are respectively connected with the reaction frames 6.

[0034] As a preferred embodiment, first through holes are respectively formed at opposite ends of the two base molds 1. Both ends of the first tie rod 3 can be movably inserted into the first through holes. External threads are formed at both ends of the first tie rod 3. First nuts are respectively screwed at both ends of the first tie rod 3. The first nuts are pressed against opposite sides of the two base molds 1.

[0035] As a preferred implementation,

[0036] The top mold 5 is provided with a second through hole. The transverse pad 4 is provided with a third through hole. A threaded hole is provided on the top of the base mold 1. The second through hole, the third through hole and the threaded hole of the base mold 1 are coaxially arranged. The second tie rod is a countersunk bolt. The countersunk bolt is provided through the second through hole and the third through hole and is screwed into the threaded hole of the base mold 1.

[0037] As a preferred implementation, the reaction frame 6 includes a bottom plate 61 , a vertical plate 62 , and a diagonal support plate 63 .

[0038] Among them, the base plate 61 is detachably mounted on the workbench. The vertical plate 62 is vertically arranged on one side of the base plate 61. The vertical plate 62 is connected to the opposite side of the base mold 1. The diagonal support plate 63 is supported between the base plate 61 and the vertical plate 62. There are multiple diagonal support plates. The diagonal support plates are arranged along the width direction of the base plate 61. Multiple diagonal support plates are arranged at intervals along the length direction of the base plate 61. Specifically, in this embodiment, the base mold is arranged along the length direction of the workbench. A plurality of threaded holes are provided on the workbench, and the plurality of threaded holes are arranged at intervals along the width direction of the workbench. The spacing between the plurality of threaded holes is adapted to the thickness of the longitudinal pad. The base plate is detachably mounted on the workbench by bolts.

[0039] In actual use, the number of longitudinal pads and transverse pads is determined based on the bending angle of the workpiece to be processed, so that the shape and size of the forming groove form a preset bending angle of the workpiece to be processed after the upper die is pressed down.

[0040] When adding or reducing the longitudinal pads and transverse pads, remove the bolts of the bottom plate on the opposite side of a base mold to unlock the reaction frame. Then remove the first tie rod. After removing the first tie rod and the second tie rod, use a manual or electric hydraulic push rod to spread the two base molds apart, and then add or reduce the longitudinal pads in the two base molds, and add or reduce the transverse pads between the top mold and the top of the base mold.

[0041] After the number of transverse pads and longitudinal pads reaches the requirement, the first tie rod and the second tie rod are installed again, and a locking base mold is installed on the bottom plate by bolts, so that the forming groove of the new size and shape can be used to bend the workpiece to form a preset bending angle.

[0042] The lower mold of the bending machine of the utility model splits the traditional lower mold into multiple components, and uses the number of transverse pads and longitudinal pads to adjust the properties and sizes of the shaping groove of the lower mold, so that the lower mold of the bending machine can be quickly used for bending construction. In addition, after the traditional lower mold is split, when adjusting the properties and sizes of the shaping groove, workers can easily carry the transverse pads and longitudinal pads, thereby improving the efficiency of adjusting or replacing the lower mold, reducing the use of large electric lifting workpieces, and reducing costs. In addition, the reaction frame, the first tie rod and the second tie rod can securely install the base mold, the longitudinal pad, the transverse pad, and the top mold on the workbench to bend the workpiece.

[0043] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other.

Claims

1. A lower mold of a bending machine, characterized in that: include: Two base molds are placed on the working table of the bending machine, and the two base molds are arranged opposite to each other; A plurality of longitudinal pads, wherein the plurality of longitudinal pads are embedded between the two base molds and the longitudinal pads are arranged vertically; A first tie rod, detachably tied between the two base molds; a plurality of transverse pads, the plurality of transverse pads being stacked on top of the base mold; A top die is laid on the upper part of the plurality of transverse pads, the top die is detachably tied to the base die through a second tie rod, and a shaping groove is formed between the top die, the plurality of transverse pads, and the plurality of longitudinal pads, and the shaping groove is arranged directly below the upper die above the working table of the bending machine; A reaction frame is installed on the workbench in an adjustable manner, and the opposite sides of the two base molds are respectively connected to the reaction frames.

2. The lower mold of the bending machine according to claim 1, characterized in that: The two opposite ends of the two base molds are respectively provided with a first through hole, and the two ends of the first tie rod can be movably inserted into the first through hole. The two ends of the first tie rod are formed with external threads, and the two ends of the first tie rod are respectively screwed with a first nut, which is pressed against the opposite sides of the two base molds.

3. The lower mold of the bending machine according to claim 1, characterized in that: The top mold is provided with a second through hole, the transverse pad is provided with a third through hole, and the top of the base mold is provided with a threaded hole. The second through hole, the third through hole and the threaded hole of the base mold are coaxially arranged, and the second tie rod is a countersunk bolt, which is passed through the second through hole and the third through hole and screwed into the threaded hole of the base mold.

4. The lower mold of the bending machine according to claim 1, characterized in that: The reaction frame comprises: A bottom plate, detachably mounted on the workbench; A vertical plate, vertically arranged on one side of the bottom plate and connected to the opposite side of the base mold; The diagonal support plate is supported between the bottom plate and the vertical plate.

5. The lower mold of the bending machine according to claim 4, characterized in that: There are multiple diagonal bracing plates, each of which is arranged along the width direction of the bottom plate, and multiple diagonal bracing plates are arranged at intervals along the length direction of the bottom plate.

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