Sheet metal part positioning and bending device

Abstract

The utility model discloses a sheet metal part positioning bending device, including device main part, setting on the bending assembly and positioning assembly of device main part, the bending assembly includes the bending groove and with the lower pressure mechanism of bending groove correspondence, and the positioning assembly includes the positioning baffle and support plate respectively setting in the both sides of bending groove, and the end surface of support plate is flush with the end surface of bending groove, and the both sides of support plate are provided with two sets of positioning shafts, and the positioning shaft is swing setting. The positioning baffle in scheme ensures the sheet metal part end positioning precision, avoids the sheet metal part along the length direction deviation when bending. The support plate is flush with the end surface of bending groove, eliminates the height difference of both junctions, prevents the partial deformation or surface indentation of sheet metal part after placing. The swing setting positioning shaft replaces the traditional manual holding positioning mode, reduces the safety risk of the hand of operating personnel being injured by the lower pressure mechanism, can continuously limit the top surface of sheet metal part, reduces the bending position deviation and angle fluctuation, and improves the bending precision.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal bending, and more specifically, to a sheet metal positioning and bending device. Background Technology

[0002] Sheet metal parts are widely used in machinery manufacturing, home appliance production, and automotive parts processing. The bending process, as a core step in sheet metal forming, directly impacts product quality and production efficiency due to its positioning accuracy and operational safety. With increasing demand for customized sheet metal parts from downstream industries, the need for frequent switching between processing different sizes and thicknesses has highlighted the growing technical limitations of traditional sheet metal bending devices.

[0003] Existing sheet metal bending devices generally lack dedicated positioning structures and have insufficient ability to limit the top surface of sheet metal parts, relying solely on simple pressure plates at the edge of the bending groove for basic positioning. To prevent warping and displacement of sheet metal parts during bending, operators need to hold a positioning plate to assist in fixing the sheet metal parts. Uneven force applied manually can easily lead to positioning deviations in the sheet metal parts, causing bending position shifts and angle fluctuations, resulting in a certain scrap rate. Manual operation is labor-intensive and not suitable for batch processing.

[0004] Meanwhile, the positioning bars of existing devices are mostly fixed structures, which cannot flexibly adjust the distance between them and the bending groove according to the bending requirements of different sheet metal parts. When changing processing specifications, they need to be disassembled and reassembled, which is cumbersome and can easily lead to the offset of the positioning reference. Utility Model Content

[0005] The purpose of this utility model is to provide a sheet metal part positioning and bending device to solve the technical problems existing in the background art.

[0006] This utility model provides a sheet metal part positioning and bending device, including a device body, a bending component and a positioning component disposed on the device body;

[0007] The bending assembly includes a bending groove and a pressing mechanism corresponding to the bending groove. The positioning assembly includes positioning stops and a support plate respectively disposed on both sides of the bending groove. The end face of the support plate is flush with the end face of the bending groove. Two sets of positioning shafts are symmetrically disposed on both sides of the support plate. The positioning stops are mounted on an adjusting assembly, which adjusts the distance between the positioning stops and the bending groove. The positioning shafts are movably disposed. When the sheet metal part is bent, the end of the sheet metal part contacts the positioning stops, and the positioning shafts are located above the sheet metal part and contact the top surface of the sheet metal part.

[0008] In a preferred embodiment, the positioning shaft is mounted on a movable bracket, and the movable bracket is mounted on the support plate.

[0009] In a preferred embodiment, the movable bracket includes a mounting shaft, a rod with a slot rotatably connected to the mounting shaft, a telescopic rod inserted into the rod, and elastic components symmetrically arranged on both sides of the rod; the telescopic rod is slidably connected to the slot, and the positioning shaft is mounted on the side of the telescopic rod.

[0010] In a preferred embodiment, a tension spring is provided in the slot of the rod, and the end of the tension spring is fixedly connected to the telescopic rod.

[0011] In a preferred embodiment, the positioning shaft is rotatably disposed on the side of the telescopic rod.

[0012] In a preferred embodiment, the elastic component includes two sets of symmetrically arranged return springs and a mounting plate for fixing the return springs.

[0013] In a preferred embodiment, the adjusting assembly includes an adjusting plate fixed to the positioning stop bar, a rack fixed to the adjusting plate, a gear meshing with the rack, and a driving member for driving the gear to rotate.

[0014] In a preferred embodiment, the two sides of the adjusting plate are slidably connected to the fixing plate on the main body of the device.

[0015] The beneficial effects of this utility model's technical solution are:

[0016] In this design, the positioning stop ensures precise positioning of the sheet metal part's end, preventing it from shifting along its length during bending. The support plate is flush with the end face of the bending groove, eliminating the height difference at their connection point and preventing localized deformation or surface indentations after placement. The movable positioning axis replaces the traditional manual hand-held positioning method, reducing the safety risk of operator injury from the pressing mechanism and continuously limiting the top surface of the sheet metal part, minimizing bending position deviation and angle fluctuations, and improving bending accuracy. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the upper part of the structure of this utility model.

[0019] Figure 3 This utility model Figure 2 Enlarged view of part A in the middle.

[0020] Explanation of reference numerals in the attached drawings: 1. Main body of the device; 2. Bending groove; 3. Pressing mechanism; 4. Positioning stop; 5. Support plate; 6. Positioning shaft; 7. Mounting shaft; 8. Rod; 9. Telescopic rod; 10. Tension spring; 11. Return spring; 12. Mounting support plate; 13. Adjusting plate; 14. Rack; 15. Gear; 16. Fixing plate. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0022] like Figures 1-3 As shown, this utility model provides a sheet metal part positioning and bending device, including a device body 1, a bending assembly and a positioning assembly disposed on the device body 1; the bending assembly includes a bending groove 2 and a pressing mechanism 3 corresponding to the bending groove 2; the positioning assembly includes positioning stops 4 and a support plate 5 respectively disposed on both sides of the bending groove 2, the end face of the support plate 5 is flush with the end face of the bending groove 2, two sets of positioning shafts 6 are symmetrically disposed on both sides of the support plate 5, the positioning stops 4 are mounted on a distance adjustment assembly, the distance adjustment assembly adjusts the distance between the positioning stops 4 and the bending groove 2, and the positioning shafts 6 are movably disposed; when the sheet metal part is bent, the end of the sheet metal part contacts the positioning stops 4, and the positioning shafts 6 are located above the sheet metal part and contact the top surface of the sheet metal part.

[0023] In the above scheme, when bending sheet metal parts, firstly, according to the bending position requirements of the sheet metal parts to be processed, the distance between the positioning stop 4 and the bending groove 2 is adjusted by the distance adjustment component; then, the sheet metal parts are placed stably on the support plate 5, and the sheet metal parts are pushed along the support plate 5 until the end of the sheet metal parts is in close contact with the positioning stop 4, thus completing the end positioning of the sheet metal parts. At this time, the movable positioning shafts 6 on both sides of the support plate 5 will naturally fit against the top surface of the sheet metal parts; finally, the bending component is activated, and the pressing mechanism 3 moves vertically towards the bending groove 2, applying pressure to the area of ​​the sheet metal parts located above the bending groove 2 to achieve the bending and forming of the sheet metal parts. During the bending process, the positioning shafts 6 always maintain contact with the top surface of the sheet metal parts.

[0024] Among them, the adjustable distance component can flexibly adjust the position of the positioning stop 4 without disassembling and reinstalling the stop, which can adapt to sheet metal parts with different bending position requirements, greatly improving the efficiency of specification switching; the positioning stop 4 ensures accurate positioning of the end of the sheet metal part and avoids the sheet metal part from shifting along the length direction during bending; the support plate 5 is flush with the end face of the bending groove 2, eliminating the height difference at the joint between the two and preventing local deformation or surface indentation after the sheet metal part is placed; the movable positioning shaft 6 replaces the traditional manual hand positioning method, which not only reduces the safety risk of the operator's hand being accidentally injured by the pressing mechanism 3, but also continuously limits the top surface of the sheet metal part, reduces bending position offset and angle fluctuation, and improves bending accuracy.

[0025] The adjusting assembly includes an adjusting plate 13 fixed to the positioning stop bar 4, a rack 14 fixed to the adjusting plate 13, and a gear 15 meshing with the rack 14, as well as a driving member for driving the gear 15 to rotate; the two sides of the adjusting plate 13 are slidably connected to the fixing plate 16 on the main body 1 of the device.

[0026] When the position of the positioning stop 4 needs to be adjusted, the drive unit (such as a small motor) is started. The output torque of the drive unit drives the gear 15 to rotate around its axis. Since the gear 15 and the rack 14 mesh with each other, the rotation of the gear 15 will be converted into the linear movement of the rack 14. The rack 14 drives the adjusting plate 13 fixed thereto to move synchronously, thereby enabling the positioning stop 4 fixed on the adjusting plate 13 to achieve position adjustment. During the movement of the adjusting plate 13, its two sides slide smoothly along the sliding track of the fixed plate 16 to avoid the adjusting plate 13 from tilting or shifting.

[0027] The positioning shaft 6 is mounted on the movable bracket, which is mounted on the support plate 5. The movable bracket includes a mounting shaft 7, a rod 8 with a slot rotatably connected to the mounting shaft 7, a telescopic rod 9 inserted into the rod 8, and elastic components symmetrically arranged on both sides of the rod 8. The telescopic rod 9 is slidably connected to the slot, and the positioning shaft 6 is mounted on the side of the telescopic rod 9.

[0028] Based on the thickness difference of the sheet metal parts, when placing the sheet metal parts, the top surface of the sheet metal parts will exert a force on the positioning shaft 6. The positioning shaft 6 will drive the telescopic rod 9 to slide along the slot of the rod body 8. At the same time, the rod body 8 will rotate slightly around the mounting shaft 7. The elastic components on both sides of the rod body 8 will generate corresponding compression or tension deformation as the rod body 8 rotates, and form a reverse support for the rod body 8 through elastic force. During the bending process, the change in the shape of the sheet metal parts will drive the positioning shaft 6 to move. The sliding cooperation between the telescopic rod 9 and the rod body 8, the rotational cooperation between the rod body 8 and the mounting shaft 7, combined with the elastic adjustment of the elastic components, will keep the positioning shaft 6 in contact with the top surface of the sheet metal parts.

[0029] A tension spring 10 is provided in the slot of the rod body 8, and the end of the tension spring 10 is fixedly connected to the telescopic rod 9; during bending and placement of sheet metal parts, the telescopic rod 9 can be adjusted in accordance with the tension spring 10.

[0030] The positioning shaft 6 is rotatably mounted on the side of the telescopic rod 9. During the bending process, the deformation of the sheet metal in the vertical direction or the slight movement in the horizontal direction will cause the positioning shaft 6 to rotate around its own axis. When the positioning shaft 6 rotates, it converts the sliding friction between it and the top surface of the sheet metal into rolling friction, reducing the relative resistance between the two.

[0031] The elastic component includes two symmetrically arranged sets of return springs 11 and a mounting plate 12 for fixing the return springs 11. When the rod 8 rotates around the mounting shaft 7, the return spring 11 on one side is compressed and the return spring 11 on the other side is stretched. The two sets of return springs 11 together generate an elastic force opposite to the rotation direction of the rod 8, forming a balanced support for the rod 8. After bending, the sheet metal part is removed, and the elastic force of the two sets of return springs 11 will drive the rod 8 to rotate back to the initial position around the mounting shaft 7. The telescopic rod 9 and the positioning shaft 6 will also be reset, preparing for the next positioning of the sheet metal part.

[0032] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A sheet metal part positioning and bending device, characterized in that: Includes the main body of the device, bending components and positioning components mounted on the main body of the device; The bending assembly includes a bending groove and a pressing mechanism corresponding to the bending groove. The positioning assembly includes positioning stops and a support plate respectively disposed on both sides of the bending groove. The end face of the support plate is flush with the end face of the bending groove. Two sets of positioning shafts are symmetrically disposed on both sides of the support plate. The positioning stops are mounted on an adjusting assembly, which adjusts the distance between the positioning stops and the bending groove. The positioning shafts are movably disposed. When the sheet metal part is bent, the end of the sheet metal part contacts the positioning stops, and the positioning shafts are located above the sheet metal part and contact the top surface of the sheet metal part.

2. The sheet metal positioning and bending device according to claim 1, characterized in that: The positioning shaft is mounted on the movable bracket, and the movable bracket is mounted on the support plate.

3. The sheet metal positioning and bending device according to claim 2, characterized in that: The movable bracket includes a mounting shaft, a rod with a slot rotatably connected to the mounting shaft, a telescopic rod inserted into the rod, and elastic components symmetrically arranged on both sides of the rod; the telescopic rod is slidably connected to the slot, and the positioning shaft is installed on the side of the telescopic rod.

4. The sheet metal part positioning and bending device according to claim 3, characterized in that: A tension spring is installed in the slot of the rod, and the end of the tension spring is fixedly connected to the telescopic rod.

5. A sheet metal part positioning and bending device according to claim 3, characterized in that: The positioning shaft is rotatably mounted on the side of the telescopic rod.

6. A sheet metal part positioning and bending device according to claim 3, characterized in that: The elastic component includes two sets of symmetrically arranged return springs and a mounting plate for fixing the return springs.

7. The sheet metal positioning and bending device according to claim 1, characterized in that: The adjusting assembly includes an adjusting plate fixed to the positioning stop bar, a rack fixed to the adjusting plate, a gear meshing with the rack, and a driving member for driving the gear to rotate.

8. A sheet metal part positioning and bending device according to claim 7, characterized in that: The two sides of the adjusting plate are slidably connected to the fixing plate on the main body of the device.

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