Multi-angle linkage bending die for automobile sheet metal part

Abstract

The utility model discloses a multi-angle linkage bending die for automobile sheet metal parts, which belongs to the technical field of automobile part processing and comprises a base plate, a lower die and an upper die, the lower die and the upper die are both fixedly connected to the top of the base plate, the lower die is arranged on the inner side of the upper die, and the upper die is arranged on the lower side of the base plate. The top of the base plate is fixedly connected with an adjustable bending mechanism; the adjustable bending mechanism comprises a first portal frame fixedly connected to the top of the base plate, a first hydraulic cylinder is fixedly connected to the top of the first portal frame, a second portal frame is fixedly connected to the end of an output shaft of the first hydraulic cylinder, and a third portal frame hinged to the base plate is slidably connected to the inner side of the second portal frame. The first hydraulic cylinder drives the second portal frame to ascend and descend, in cooperation with sliding connection of the adjusting column and the sliding rail, the third portal frame rotates around the positioning column, the bending template is driven to achieve multi-angle adjustment, and the requirement for complex curved surface forming of sheet metal parts is met.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, specifically to a multi-angle linkage bending mold for automotive sheet metal parts. Background Technology

[0002] Automotive sheet metal parts are processed using stamping dies, which offers high efficiency and low cost, and the same composite die can be used for workpieces of the same specifications. However, manual re-inspection is required when stamping at bends, leading to low efficiency and high labor intensity. Multi-angle bending operations are difficult to operate and hard for novices to master, affecting processing quality and work efficiency.

[0003] Currently, a Chinese patent discloses a bending die for processing automotive parts (authorization announcement number CN219817582U). In this utility model, through the design of upper and lower dies, a hydraulic rod is used to perform one-time bending processing on the workpiece with the upper and lower dies. The cooperative setting of the upper and lower dies makes the bending effect better. At the same time, the design of the positioning mechanism allows the upper end of the workpiece to cooperate with the positioning mechanism to perform bending operations when bending the same workpiece at multiple angles. Multiple precise bending operations can be performed on the same workpiece. The operation is simple and the application range is wider.

[0004] Since the above-mentioned device sets up a lateral bending mold on the basis of the existing upper and lower bending mold, although it can meet the bending requirements of automotive sheet metal parts at multiple angles, the lateral bending mold cannot adjust the angle, which means that the lateral bending mold can only bend automotive sheet metal parts horizontally, and its applicable range is still relatively narrow.

[0005] Based on this, this utility model designs a multi-angle linkage bending mold for automotive sheet metal parts to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a multi-angle linkage bending mold for automotive sheet metal parts.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A multi-angle linkage bending mold for automotive sheet metal parts includes a base plate, a lower mold, and an upper mold. The lower mold and the upper mold are both fixedly connected to the top of the base plate. The lower mold is disposed inside the upper mold. An adjustable bending mechanism is fixedly connected to the top of the base plate.

[0009] Furthermore, the adjustable bending mechanism includes a first gantry fixedly connected to the top of the substrate, a first hydraulic cylinder fixedly connected to the top of the first gantry, a second gantry fixedly connected to the end of the output shaft of the first hydraulic cylinder, a third gantry slidably connected to the inner side of the second gantry and hinged to the substrate, a second hydraulic cylinder fixedly connected to the side end of the third gantry, and a bending template fixedly connected to the end of the output shaft of the second hydraulic cylinder.

[0010] Furthermore, there are no fewer than three of each of the first and second hydraulic cylinders, and the first and second hydraulic cylinders are respectively and evenly fixedly connected to the surfaces of the first gantry and the third gantry.

[0011] Furthermore, the inner width of the first gantry frame is the same as the outer width of the second gantry frame, and the height of the first gantry frame is greater than the combined length of the third gantry frame and the second hydraulic cylinder.

[0012] Furthermore, adjusting columns are fixedly connected to both of the two opposite vertical end faces of the second gantry frame, and slide rails that are fixedly connected to the third gantry frame are slidably connected to the surface of the adjusting columns.

[0013] Furthermore, the surface of the adjusting column is rotatably connected to a roller, which is slidably connected to the inside of the slide rail.

[0014] Furthermore, positioning columns are fixedly connected to both of the two opposite horizontal end faces of the third gantry frame. The positioning columns are located between the roller and the lower mold, and a fixing seat that is fixedly connected to the base plate is rotatably connected to the surface of the positioning column.

[0015] Furthermore, the top of the first gantry frame is provided with evenly distributed first guide holes, and the interior of the first guide holes is slidably connected to a first guide rod that is fixedly connected to the second gantry frame.

[0016] Furthermore, the third gantry frame has evenly distributed second guide holes on its side end, and a second guide rod that is fixedly connected to the bending template is slidably connected inside the second guide hole. Beneficial effects

[0017] 1. The first hydraulic cylinder drives the second gantry to rise and fall. In conjunction with the sliding connection between the adjusting column and the slide rail, the third gantry rotates around the positioning column, which drives the bending template to achieve multi-angle adjustment to meet the requirements of complex curved surface forming of sheet metal parts.

[0018] 2. The lower mold, upper mold, and bending template all adopt a bolt-detachable connection structure, which allows for quick replacement of mold components according to different sheet metal parts shapes. At the same time, the second hydraulic cylinder works in conjunction with the bending template to achieve secondary bending, enhancing the multi-process composite processing capability. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of a multi-angle linkage bending mold for automotive sheet metal parts according to the present invention.

[0021] Figure 2 This is a schematic diagram of the adjustable bending mechanism in a multi-angle linkage bending mold for automotive sheet metal parts according to this utility model.

[0022] Figure 3 This is a cross-sectional schematic diagram of an adjustable bending mechanism in a multi-angle linkage bending mold for automotive sheet metal parts according to this utility model.

[0023] Figure 4 This is an exploded view of the adjustable bending mechanism in a multi-angle linkage bending mold for automotive sheet metal parts according to this utility model.

[0024] The labels in the diagram represent:

[0025] 100, Substrate; 200, Lower mold; 300, Upper mold; 400, Adjustable bending mechanism; 410, First gantry frame; 411, First guide hole; 420, First hydraulic cylinder; 430, Second gantry frame; 440, Third gantry frame; 441, Second guide hole; 450, Second hydraulic cylinder; 460, Bending template; 470, Adjusting column; 480, Slide rail; 490, Roller; 4100, Positioning column; 4110, Fixing base; 4120, First guide rod; 4130, Second guide rod. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] The present invention will be further described below with reference to the embodiments.

[0028] In some embodiments, please refer to the appendix to the instruction manual. Figure 1-4A multi-angle linkage bending mold for automotive sheet metal parts includes a base plate 100, a lower mold 200 and an upper mold 300. The lower mold 200 and the upper mold 300 are both fixedly connected to the top of the base plate 100. The lower mold 200 is disposed inside the upper mold 300. An adjustable bending mechanism 400 is fixedly connected to the top of the base plate 100.

[0029] like Figure 2 , Figure 3 and Figure 4 As shown, the adjustable bending mechanism 400 includes a first gantry 410 fixedly connected to the top of the substrate 100, a first hydraulic cylinder 420 fixedly connected to the top of the first gantry 410, a second gantry 430 fixedly connected to the end of the output shaft of the first hydraulic cylinder 420, a third gantry 440 hinged to the substrate 100 slidably connected to the inner side of the second gantry 430, a second hydraulic cylinder 450 fixedly connected to the side end of the third gantry 440, and a bending template 460 fixedly connected to the end of the output shaft of the second hydraulic cylinder 450; the number of the first hydraulic cylinder 420 and the second hydraulic cylinder 450 is not less than three, and the first hydraulic cylinder 420 and the second hydraulic cylinder 450 are respectively and evenly fixedly connected to the surfaces of the first gantry 410 and the third gantry 440; the inner width of the first gantry 410 is the same as the outer width of the second gantry 430, and the height of the first gantry 410 is greater than the combined length of the third gantry 440 and the second hydraulic cylinder 450; the second gantry... Adjusting columns 470 are fixedly connected to both of the two opposite vertical end faces of the third gantry 430. A slide rail 480, which is fixedly connected to the third gantry 440, is slidably connected to the surface of the adjusting column 470. A roller 490 is rotatably connected to the surface of the adjusting column 470 and is slidably connected to the inside of the slide rail 480. Positioning columns 4100 are fixedly connected to both of the two opposite horizontal end faces of the third gantry 440. The positioning columns 4100 are located between the roller 490 and the lower mold 200. A fixing seat 4110, which is fixedly connected to the base plate 100, is rotatably connected to the surface of the positioning column 410. The top of the first gantry 410 has evenly distributed first guide holes 411. A first guide rod 4120, which is fixedly connected to the second gantry 430, is slidably connected to the inside of the first guide holes 411. The side end of the third gantry 440 has evenly distributed second guide holes 441. A second guide rod 4130, which is fixedly connected to the bending template 460, is slidably connected to the inside of the second guide holes 441.

[0030] Extended content: The multi-angle linkage bending die for automotive sheet metal parts needs to be used in conjunction with a CNC bending machine and a hydraulic station. The specific installation process is as follows: The base plate 100 is fixedly connected to the mounting platform of the CNC bending machine with bolts. Then, the upper die 300 is fixedly connected to the spindle of the CNC bending machine with bolts. The first hydraulic cylinder 420 and the second hydraulic cylinder 450 are connected to the hydraulic station through pressure-resistant pipes. Then, according to the multi-angle bending requirements of the automotive sheet metal parts, the hydraulic station is controlled to draw or deliver hydraulic oil into the first hydraulic cylinder 420 or the second hydraulic cylinder 450 to realize the angle and position adjustment of the bending die.

[0031] When the worker places the workpiece on top of the lower mold 200, the CNC bending machine moves the upper mold 300 down and bends the workpiece in conjunction with the lower mold 200. Then, the worker controls the second hydraulic cylinder 450 to extend through the hydraulic station. The second hydraulic cylinder 450 moves the bending template 460 to move laterally closer to the workpiece and, in conjunction with the lower mold 200 and the upper mold 300, performs a second bending of the workpiece, thus achieving the requirement of multi-angle linkage bending of the workpiece.

[0032] It should be noted that the lower mold 200, upper mold 300, and bending template 460 need to be customized according to the processing shape requirements of the automotive sheet metal parts. The lower mold 200 and upper mold 300 are detachably connected to the top of the base plate 100 by bolts. The bending template 460 is detachably connected to the end of the second hydraulic cylinder 450 and the second guide rod 4130 by bolts. The CNC bending machine, hydraulic station, first hydraulic cylinder 420, and second hydraulic cylinder 450 are all devices with relatively mature existing technology. The specific models and usage methods can be selected according to actual needs.

[0033] In this embodiment of the utility model, when the operator needs to adjust the angle of the bending template 460, the operator only needs to control the first hydraulic cylinder 420 to extend or retract through the hydraulic station. The first hydraulic cylinder 420 drives the second gantry 430 to rise and fall, the second gantry 430 drives the adjusting column 470 to rise and fall, the adjusting column 470 adjusts the slide rail 480 up and down, the slide rail 480 drives the third gantry 440 to rotate along the connection between the positioning column 4100 and the fixed seat 4110, and the third gantry 440 drives the second hydraulic cylinder 450 and the bending template 460 to rotate accordingly, so as to meet the needs of the bending template 460 to bend the workpiece at multiple angles.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A multi-angle linkage bending mold for automotive sheet metal parts, comprising a base plate (100), a lower mold (200), and an upper mold (300), wherein the lower mold (200) and the upper mold (300) are both fixedly connected to the top of the base plate (100), and the lower mold (200) is disposed inside the upper mold (300), characterized in that: An adjustable bending mechanism (400) is fixedly connected to the top of the substrate (100). The adjustable bending mechanism (400) includes a first gantry (410) fixedly connected to the top of the substrate (100), a first hydraulic cylinder (420) fixedly connected to the top of the first gantry (410), a second gantry (430) fixedly connected to the end of the output shaft of the first hydraulic cylinder (420), a third gantry (440) hinged to the substrate (100) slidably connected to the inner side of the second gantry (430), a second hydraulic cylinder (450) fixedly connected to the side end of the third gantry (440), and a bending template (460) fixedly connected to the end of the output shaft of the second hydraulic cylinder (450).

2. The multi-angle linkage bending mold for automotive sheet metal parts according to claim 1, characterized in that, The number of the first hydraulic cylinder (420) and the second hydraulic cylinder (450) is not less than three. The first hydraulic cylinder (420) and the second hydraulic cylinder (450) are respectively uniformly fixedly connected to the surfaces of the first gantry (410) and the third gantry (440).

3. The multi-angle linkage bending mold for automotive sheet metal parts according to claim 1, characterized in that, The inner width of the first gantry (410) is the same as the outer width of the second gantry (430), and the height of the first gantry (410) is greater than the combined length of the third gantry (440) and the second hydraulic cylinder (450).

4. The multi-angle linkage bending mold for automotive sheet metal parts according to claim 1, characterized in that, The two opposite vertical end faces of the second gantry (430) are fixedly connected with adjusting columns (470), and the surface of the adjusting columns (470) is slidably connected with slide rails (480) that are fixedly connected to the third gantry (440).

5. The multi-angle linkage bending mold for automotive sheet metal parts according to claim 4, characterized in that, The surface of the adjusting column (470) is rotatably connected to a roller (490), which is slidably connected to the inside of the slide rail (480).

6. The multi-angle linkage bending mold for automotive sheet metal parts according to claim 5, characterized in that, The third gantry (440) has two opposite horizontal end faces fixedly connected with positioning columns (4100). The positioning columns (4100) are located between the roller (490) and the lower mold (200). The surface of the positioning column (4100) is rotatably connected with a fixing seat (4110) that is fixedly connected to the base plate (100).

7. The multi-angle linkage bending mold for automotive sheet metal parts according to claim 1, characterized in that, The top of the first gantry (410) is provided with uniformly distributed first guide holes (411), and the first guide hole (4120) is slidably connected to the inside of the first guide hole (411) and fixedly connected to the second gantry (430).

8. The multi-angle linkage bending mold for automotive sheet metal parts according to claim 1, characterized in that, The third gantry (440) has evenly distributed second guide holes (441) on its side end, and a second guide rod (4130) that is fixedly connected to the curved template (460) is slidably connected inside the second guide hole (441).

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