Sheet metal bending device

Abstract

The present application discloses a sheet bending device, which includes a mounting plate, a limiting mechanism and a bending mechanism. The limiting mechanism is arranged on the mounting plate, the sheet is suitable for being placed on the mounting plate, and the limiting mechanism cooperates with the sheet to limit the position; the bending mechanism includes a driving handle, a bending roller and a bending member, the driving handle is pivotally mounted on the mounting plate, the bending roller is pivotally mounted on the driving handle, the bending member is arranged on the mounting plate, the bending member and the bending roller are arranged oppositely and define a bending gap, the sheet is clamped between the bending member and the bending roller, and when the driving handle is driven, the driving handle drives the bending roller to rotate around the pivot axis between the driving handle and the mounting plate, so that the bending roller bends the sheet, and the bending roller rotates around the pivot axis of the bending roller. The sheet bending device can prevent the insulation tube on the sheet from breaking when the sheet is bent, thereby reducing the difficulty of sheet production and improving the sheet production efficiency.

Description

Technical Field

[0001] The present application relates to the field of sheet metal parts manufacturing, and in particular to a sheet metal bending device. Background Art

[0002] In the related art, copper bars are formed by directly stamping copper sheets. However, the copper bar stamping method cannot effectively utilize the edge area of ​​the copper sheet, resulting in material waste. In order to improve material utilization, the copper sheet is bent into copper bars for processing.

[0003] Copper busbars are widely used in electrical equipment. An insulating tube needs to be installed on the outside of the copper busbar. The current copper sheet bending process is to first bend the end of the copper sheet to a predetermined angle, then manually flatten the end of the copper sheet and install an insulating tube, and finally bend the end of the copper sheet back to a predetermined angle. In addition, installing the insulating tube before bending the copper sheet can easily cause the insulating tube at the bending part of the copper sheet to be over-squeezed and over-pulled during the bending process, resulting in the rupture of the insulating tube, thereby requiring the insulating tube to be re-installed on the outside of the copper busbar. This copper sheet bending process increases the production difficulty of the copper busbar and reduces the production efficiency of the copper busbar. Summary of the invention

[0004] In order to prevent the insulating tube from breaking when bending the copper sheet, reduce the production difficulty of the copper busbar, and improve the production efficiency of the copper busbar, the present application provides a sheet bending device.

[0005] The sheet metal bending device provided in this application adopts the following technical solution:

[0006] A sheet material bending device comprises: a mounting plate and a limiting mechanism, wherein the limiting mechanism is arranged on the mounting plate, the sheet material is suitable for being placed on the mounting plate, and the limiting mechanism cooperates with the sheet material for limiting.

[0007] The bending mechanism comprises a driving handle, a bending roller and a bending member, wherein the driving handle is pivotally mounted on the mounting plate, the bending roller is pivotally mounted on the driving handle, the bending member is arranged on the mounting plate, the bending member and the bending roller are arranged opposite to each other and define a bending gap, the sheet material is clamped between the bending member and the bending roller, and when the driving handle is driven, the driving handle drives the bending roller to rotate around the pivot axis between the driving handle and the mounting plate so that the bending roller bends the sheet material, and the bending roller rotates around the pivot axis of the bending roller.

[0008] By adopting the above technical solution, the bending roller and the bending member clamp the sheet material together, the driving handle drives the bending roller to drive the sheet material to move upward and bend the sheet material, and in the process of the bending roller driving the sheet material to bend upward, the bending roller rotates around the pivot axis between the bending roller and the driving handle, thereby preventing the bending roller from over-squeezing and over-pulling the insulating tube on the sheet material to cause the insulating tube to rupture. Compared with the prior art, the sheet bending device can prevent the insulating tube on the sheet material from rupturing when the sheet material is bent, thereby reducing the difficulty of sheet material production, and further improving sheet material production efficiency.

[0009] Preferably, the driving handle includes a handle body, a first pivot arm and a second pivot arm, the first pivot arm and the second pivot arm are relatively spaced apart, the handle body is fixedly connected between the fixed end of the first pivot arm and the fixed end of the second pivot arm, and the bending roller is pivotally installed between the first pivot arm and the second pivot arm.

[0010] The edge of the mounting plate is provided with a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are arranged opposite to and spaced apart along a first direction of the mounting plate, the free end of the pivot arm is pivotally connected to the corresponding connecting portion, the pivot axis between the pivot arm and the corresponding connecting portion is constructed as a rotation axis, and when the handle body is driven, the first pivot arm and the second pivot arm are driven to rotate around the rotation axis to drive the bending roller to rotate around the rotation axis.

[0011] By adopting the above-mentioned technical scheme, when the handle body is driven, the handle body simultaneously drives the first pivot arm and the second pivot arm to rotate around the rotation axis, so that the first pivot arm and the second pivot arm simultaneously drive the bending roller to rotate around the rotation axis, thereby achieving the technical effect of bending the sheet metal by the bending roller.

[0012] Preferably, the bending mechanism also includes a connecting shaft, a first limit sleeve and a second limit sleeve, the connecting shaft is arranged between the first pivot arm and the second pivot arm, the first limit sleeve and the second limit sleeve are arranged opposite to and spaced apart along the first direction and are both sleeved on the outer peripheral wall of the connecting shaft, the bending roller is pivotally sleeved on the outer peripheral wall of the connecting shaft and is located between the first limit sleeve and the second limit sleeve, and the bending roller is limitedly matched with the first limit sleeve and the second limit sleeve.

[0013] By adopting the above technical scheme, the left end wall of the bending roller cooperates with the first limit sleeve, and the right end wall of the bending roller cooperates with the second limit sleeve, thereby preventing the bending roller from deviating from the preset installation position, preventing the bending roller from being unable to contact the sheet material and causing the sheet material to be unable to bend, thereby improving the working reliability of the sheet material bending device.

[0014] Preferably, the side walls of the first pivot arm and the second pivot arm are provided with a connecting groove and a first waist-shaped hole, the connecting groove of the first pivot arm is arranged opposite to the connecting groove of the second pivot arm, the end wall of each pivot arm provided with the connecting groove is arranged adjacent to the end wall provided with the first waist-shaped hole, and the connecting groove of each pivot arm is connected to the corresponding first waist-shaped hole, the end of the connecting shaft is inserted into the connecting groove, and the first fastener passes through the first waist-shaped hole and the connecting shaft in sequence to fix the connecting shaft and the corresponding pivot arm.

[0015] By adopting the above technical solution, the left end portion of the connecting shaft extends into the connecting groove of the first pivot arm, the right end portion of the connecting shaft extends into the connecting groove of the second pivot arm, the first fastener sequentially passes through the first waist-shaped hole of the first pivot arm and the left end portion of the connecting shaft, and the first fastener sequentially passes through the first waist-shaped hole of the second pivot arm and the right end portion of the connecting shaft, thereby achieving the technical effect of fixing the connecting shaft to the driving handle.

[0016] Preferably, the bending part has adjacent pressing surfaces and forming surfaces, the pressing surfaces are suitable for being arranged opposite to the bending roller and pressing against the sheet material, the forming surface is located on the side of the pressing surface away from the sheet material, there is an angle between the pressing surface and the forming surface, the forming surface is suitable for stopping against the sheet material, and the sheet material stops against the forming surface when the sheet material is bent by the bending roller.

[0017] By adopting the above technical scheme, when the sheet passes through the bending gap, the upper end wall of the sheet is pressed against the pressing surface, and when the bending roller drives the sheet to rotate upward and stops against the forming surface, the bending roller completes the bending of the sheet, thereby achieving the technical effect of controlling the bending angle of the sheet by the angle between the pressing surface and the forming surface.

[0018] Preferably, a first limiting portion and a second limiting portion are provided at the edge of the mounting plate, the first limiting portion and the second limiting portion are arranged opposite to and spaced apart along a first direction of the mounting plate, the side walls of the first limiting portion and the second limiting portion are both provided with limiting grooves, the limiting groove of the first limiting portion is arranged opposite to the limiting groove of the second limiting portion, and the bending part can be detachably installed in the limiting groove.

[0019] By adopting the above technical scheme, when the sheet material is bent once, the bending part is installed in the limiting groove, and then the driving handle drives the bending roller to bend the sheet material so that the sheet material and the forming surface of the bending part stop to complete one bending of the sheet material, and then the driving handle is driven to drive the bending roller to rotate away from the sheet material, the sheet material undergoes elastic deformation and separates from the forming surface of the bending part, the bending part is taken out of the limiting groove, and then the driving handle is driven to drive the bending roller to rotate close to the sheet material and bend the sheet material to 180°, thereby achieving the technical effect of bending the sheet material 180°.

[0020] Preferably, the limiting mechanism comprises a plurality of limiting members, the plurality of limiting members are arranged at intervals along the circumferential direction of the sheet material, and the plurality of limiting members cooperate with at least two adjacent side walls of the sheet material to limit the sheet material.

[0021] By adopting the above technical solution, through multiple limit members and at least two adjacent side walls of the sheet material, it is possible to prevent the sheet material from deviating from the preset placement position when the bending roller bends the sheet material, causing the bending roller to be unable to bend the sheet material in the preset bending direction, thereby improving the working reliability of the sheet material bending device.

[0022] Preferably, the top wall of the mounting plate is provided with a plurality of mounting holes, and the plurality of mounting holes are spaced apart along the radial direction of the mounting plate, and the limiting member is provided with a second waist-shaped hole suitable for being opposite to at least one of the mounting holes, and the second fastener passes through the second waist-shaped hole and the mounting hole in sequence to fix the limiting member and the mounting plate.

[0023] By adopting the above technical solution, the second fastener fixes the limiter on the mounting plate, thereby preventing the limiter from deviating from the preset position and causing the sheet to deviate from the preset placement position when the bending roller bends the sheet, thereby preventing the bending roller from being unable to bend the sheet in the preset bending direction, and further improving the working reliability of the sheet bending device.

[0024] Preferably, a first limiting portion and a second limiting portion are provided at an edge of the mounting plate, the first limiting portion and the second limiting portion are arranged opposite to and spaced apart along a first direction of the mounting plate, the bending part is installed between the first limiting portion and the second limiting portion, the first limiting portion and / or the second limiting portion are provided with a positioning inclined surface, the positioning inclined surface is arranged opposite to at least one of the limiting members, and the sheet material is clamped between the positioning inclined surface and the corresponding limiting member.

[0025] By adopting the above technical solution, by clamping the sheet material between the positioning inclined surface and the limiting member opposite to the positioning inclined surface, the first limiting portion and / or the second limiting portion can not only limit the bending member, but also the first limiting portion and / or the second limiting portion can limit the sheet material, thereby reducing the number of limiting members and further reducing the manufacturing cost of the sheet material bending device.

[0026] Preferably, the mounting plate is provided with a mounting groove, and a third fastener passes through the mounting groove and the mounting wall in sequence, and the third fastener is used to lock or unlock the mounting plate and the mounting wall.

[0027] By adopting the above technical solution, the mounting plate is locked to the mounting wall by using the third fastener, thereby preventing the driving handle from synchronously driving the mounting plate to move when the bending roller bends the sheet material, causing the bending roller to be unable to bend the sheet material, thereby improving the working reliability of the sheet material bending device.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. The sheet material is clamped by the bending roller and the bending member together, and the driving handle drives the bending roller to drive the sheet material to move upward and bend the sheet material. In the process of the bending roller driving the sheet material to bend upward, the bending roller rotates around the pivot axis between the bending roller and the driving handle, thereby preventing the bending roller from over-squeezing and over-pulling the insulating tube on the sheet material, causing the insulating tube to rupture. Compared with the prior art, the sheet material bending device can prevent the insulating tube on the sheet material from rupturing when the sheet material is bent, thereby reducing the difficulty of sheet material production and further improving sheet material production efficiency;

[0030] 2. When the sheet material is bent once, the bending part is installed in the limiting groove, and then the driving handle drives the bending roller to bend the sheet material, so that the bending part of the sheet material stops against the forming surface of the bending part to complete the first bending of the sheet material, and then the driving handle is driven to drive the bending roller to rotate away from the sheet material, the sheet material undergoes elastic deformation and separates from the forming surface of the bending part, the bending part is taken out of the limiting groove, and then the driving handle is driven to drive the bending roller to rotate close to the sheet material and bend the sheet material to 180°, thereby achieving the technical effect of bending the sheet material 180°;

[0031] 3. By clamping the sheet material between the positioning inclined surface and the limiting member opposite to the positioning inclined surface, the first limiting portion and / or the second limiting portion can not only limit the bending member, but also the first limiting portion and / or the second limiting portion can limit the sheet material, thereby reducing the number of limiting members and further reducing the manufacturing cost of the sheet material bending device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1is a schematic diagram of a sheet metal bending device according to an embodiment of the present application;

[0033] Figure 2 yes Figure 1 The enlarged schematic diagram of point A in the middle;

[0034] Figure 3 yes Figure 1 The enlarged schematic diagram of point B in the middle;

[0035] Figure 4 is a cross-sectional view of a sheet metal bending device according to an embodiment of the present application;

[0036] Figure 5 yes Figure 4 The enlarged schematic diagram of the center C;

[0037] Figure 6 is a schematic diagram of a sheet metal bending device according to another angle in an embodiment of the present application;

[0038] Figure 7 yes Figure 6 The enlarged schematic diagram of point D in the middle;

[0039] Figure 8 yes Figure 6 The enlarged schematic diagram of point E in the middle;

[0040] Fig. 9 is a cross-sectional view of the sheet metal bending device according to another embodiment of the present application;

[0041] Fig.10 yes Fig. 9 The enlarged schematic diagram of F in the middle;

[0042] Fig.11 It is a flow chart of the bending method according to an embodiment of the present application.

[0043] Description of reference numerals:

[0044] 100. Sheet metal bending device;

[0045] 1. Mounting plate; 11. First connecting portion; 12. Second connecting portion; 13. First limiting portion; 14. Second limiting portion; 141. Limiting groove; 142. Positioning inclined surface; 15. Mounting hole; 16. Mounting groove;

[0046] 2. Limiting mechanism; 21. Limiting member; 211. Second waist-shaped hole;

[0047] 3. Bending mechanism; 31. Driving handle; 311. Handle body; 312. First pivot arm; 313. Second pivot arm; 314. Connecting groove; 315. First waist-shaped hole; 32. Bending roller; 33. Bending member; 331. Pressing surface; 332. Forming surface; 34. Bending gap; 35. Connecting shaft; 36. First limiting sleeve; 37. Second limiting sleeve;

[0048] 4. Sheet material; 41. Fixing portion; 42. Bending portion. DETAILED DESCRIPTION

[0049] The following is combined with Figure 1-Figure 11 This application is described in further detail.

[0050] The embodiment of the present application discloses a sheet metal bending device 100 .

[0051] Reference Figure 1 and Figure 6 According to the sheet bending device 100 described in the embodiment of the present application, it includes: a mounting plate 1, a limiting mechanism 2 and a bending mechanism 3. The limiting mechanism 2 is arranged on the mounting plate 1, and the sheet 4 is suitable for being placed on the mounting plate 1. The limiting mechanism 2 cooperates with the sheet 4 in limiting position. Specifically, along the height direction of the mounting plate 1, when the sheet 4 is placed on the upper end wall of the mounting plate 1, the limiting mechanism 2 cooperates with the sheet 4 in limiting position, thereby preventing the sheet 4 from moving when the sheet bending device 100 bends the sheet 4, causing the sheet bending device 100 to be unable to bend the sheet 4, thereby improving the working reliability of the sheet bending device 100. The height direction of the mounting plate 1 can refer to Figure 1 The up and down directions in .

[0052] It should be noted that before the sheet material 4 is placed on the mounting plate 1, an insulating tube is sleeved on the outside of the sheet material 4. In some specific embodiments, the insulating tube may be a heat shrink tube. After the heat shrink tube is sleeved on the outside of the sheet material 4, the heat shrink tube is heated to tightly wrap around the outside of the heat shrink tube, thereby preventing the heat shrink tube from separating from the sheet material 4.

[0053] In some specific embodiments, the plate material 4 may be a copper sheet.

[0054] The bending mechanism 3 includes a driving handle 31, a bending roller 32 and a bending member 33. The driving handle 31 is pivotally mounted on the mounting plate 1, the bending roller 32 is pivotally mounted on the driving handle 31, the bending member 33 is arranged on the mounting plate 1, the bending member 33 is arranged opposite to the bending roller 32 and defines a bending gap 34, the sheet 4 is clamped between the bending member 33 and the bending roller 32, in some specific embodiments, along the second direction of the mounting plate 1, the driving handle 31 is pivotally mounted on the front end of the mounting plate 1, the bending member 33 is arranged on the front end of the mounting plate 1, and the second direction of the mounting plate 1 can refer to Figure 6The front-to-back direction.

[0055] Specifically, along the length direction of the sheet material 4, the sheet material 4 includes a fixing portion 41 and a bending portion 42. The fixing portion 41 is located on the upper end wall of the mounting plate 1 and is limited by the limiting mechanism 2. The bending portion 42 passes through the bending gap 34 and is located on the outer side of the mounting plate 1. The upper end wall of the bending portion 42 is pressed against the bending part 33, and the lower end wall of the bending portion 42 is pressed against the bending roller 32.

[0056] When the driving handle 31 is driven, the driving handle 31 drives the bending roller 32 to rotate around the pivot axis between the driving handle 31 and the mounting plate 1 so that the bending roller 32 bends the sheet material 4, and the bending roller 32 rotates around the pivot axis between the bending roller 32 and the driving handle 31.

[0057] Specifically, the driving handle 31 drives the bending roller 32 to rotate upward around the pivot axis between the driving handle 31 and the mounting plate 1, and the bending roller 32 drives the bending portion 42 of the sheet material 4 to bend upward. That is, the bending roller 32 drives the bending portion 42 of the sheet material 4 to rotate upward around the connection between the sheet material 4 and the bending part 33, and in the process of the bending roller 32 driving the bending portion 42 of the sheet material 4 to bend upward, the bending roller 32 rotates around the pivot axis between the bending roller 32 and the driving handle 31, thereby preventing the bending roller 32 from excessively squeezing and excessively pulling the insulating tube on the sheet material 4, causing the insulating tube to rupture.

[0058] Furthermore, the bending roller 32 is made of a flexible material. In some specific embodiments, the flexible material may be silicone, but the present application is not limited thereto, and the flexible material may also be rubber or the like.

[0059] Furthermore, each edge of the bending member 33 is rounded.

[0060] Thus, the sheet material 4 is clamped together by the bending roller 32 and the bending member 33, and the driving handle 31 drives the bending roller 32 to drive the sheet material 4 to move upward and bend the sheet material 4, and in the process of the bending roller 32 driving the sheet material 4 to bend upward, the bending roller 32 rotates around the pivot axis between the bending roller 32 and the driving handle 31, thereby preventing the bending roller 32 from over-squeezing and over-pulling the insulating tube on the sheet material 4 to cause the insulating tube to rupture. Compared with the prior art, the sheet material bending device 100 can prevent the insulating tube on the sheet material 4 from rupturing when the sheet material 4 is bent, thereby reducing the production difficulty of the sheet material 4, and further improving the production efficiency of the sheet material 4.

[0061] Reference Figure 1-Figure 3In some embodiments of the present application, the driving handle 31 includes a handle body 311, a first pivot arm 312 and a second pivot arm 313. The first pivot arm 312 and the second pivot arm 313 are relatively spaced apart along the first direction of the mounting plate 1. The handle body 311 is fixedly connected between the fixed end of the first pivot arm 312 and the fixed end of the second pivot arm 313. Specifically, the first pivot arm 312 is located at the left end of the handle body 311, the second pivot arm 313 is located at the right end of the handle body 311, and the bending roller 32 is pivotally installed between the first pivot arm 312 and the second pivot arm 313. The first direction of the mounting plate 1 can refer to Figure 6 The left and right direction in .

[0062] It should be noted that the end of the first pivot arm 312 connected to the handle body 311 is the fixed end of the first pivot arm 312 , and the end of the second pivot arm 313 connected to the handle body 311 is the fixed end of the second pivot arm 313 .

[0063] In addition, a first connecting portion 11 and a second connecting portion 12 are provided at the edge of the mounting plate 1. The first connecting portion 11 and the second connecting portion 12 are arranged opposite to and spaced apart along a first direction of the mounting plate 1, and the free end of the pivot arm is pivotally connected to the corresponding connecting portion. Specifically, the first connecting portion 11 is located at the left end portion of the mounting plate 1, and the second connecting portion 12 is located at the right end portion of the mounting plate 1. The first connecting portion 11 is arranged opposite to the first pivot arm 312, and the free end of the first pivot arm 312 is pivotally connected to the first connecting portion 11. The second connecting portion 12 is arranged opposite to the second pivot arm 313, and the free end of the second pivot arm 313 is pivotally connected to the second connecting portion 12.

[0064] In some specific embodiments, the first connection portion 11 and the second connection portion 12 are both located outside the driving handle 31 , that is, the first pivot arm 312 and the second pivot arm 313 are inserted between the first connection portion 11 and the second connection portion 12 .

[0065] In some other specific embodiments, the first pivot arm 312 is located on a side of the first connection portion 11 away from the second connection portion 12 , and the second pivot arm 313 is located on a side of the second connection portion 12 away from the first connection portion 11 .

[0066] The pivot axis between the pivot arm and the corresponding connecting part is constructed as a rotation axis, that is, the pivot axis between the first pivot arm 312 and the first connecting part 11 is constructed as a rotation axis, the pivot axis between the second pivot arm 313 and the second connecting part 12 is constructed as a rotation axis, and the pivot axis between the first pivot arm 312 and the first connecting part 11 and the pivot axis between the second pivot arm 313 and the second connecting part 12 are coaxially arranged, and when the handle body 311 is driven, the first pivot arm 312 and the second pivot arm 313 are driven to rotate around the rotation axis, so as to drive the bending roller 32 to rotate around the rotation axis.

[0067] Specifically, when the handle body 311 is driven, the handle body 311 simultaneously drives the first pivot arm 312 and the second pivot arm 313 to rotate around the rotation axis, so that the first pivot arm 312 and the second pivot arm 313 simultaneously drive the bending roller 32 to rotate around the rotation axis, thereby achieving the technical effect of the bending roller 32 bending the sheet material 4.

[0068] It should be noted that when the bending roller 32 bends the sheet material 4, the bending roller 32 rotates around the pivot axis between the bending roller 32 and the first pivot arm 312 and the second pivot arm 313, and the pivot axis and the rotation axis between the bending roller 32 and the first pivot arm 312 and the second pivot arm 313 are not coaxially arranged.

[0069] Reference Figure 1-Figure 3 In some embodiments of the present application, the bending mechanism 3 also includes a connecting shaft 35, a first limiting sleeve 36 and a second limiting sleeve 37. The connecting shaft 35 is arranged between the first pivot arm 312 and the second pivot arm 313. The first limiting sleeve 36 and the second limiting sleeve 37 are arranged opposite to and spaced apart along the first direction of the mounting plate 1 and are both sleeved on the outer peripheral wall of the connecting shaft 35. The first limiting sleeve 36 and the second limiting sleeve 37 are both fixedly connected to the connecting shaft 35. The bending roller 32 is pivotally sleeved on the outer peripheral wall of the connecting shaft 35 and is located between the first limiting sleeve 36 and the second limiting sleeve 37. The bending roller 32 is limitedly matched with the first limiting sleeve 36 and the second limiting sleeve 37.

[0070] Specifically, along the first direction of the mounting plate 1, the first limiting sleeve 36 is located at the left end portion of the connecting shaft 35, and the second limiting sleeve 37 is located at the right end portion of the connecting shaft 35. The left end wall of the bending roller 32 is limited by the first limiting sleeve 36, and the right end wall of the bending roller 32 is limited by the second limiting sleeve 37, thereby preventing the bending roller 32 from deviating from the preset installation position, preventing the bending roller 32 from being unable to contact the sheet material 4 and causing the sheet material 4 to be unable to bend, thereby improving the working reliability of the sheet material bending device 100.

[0071] It should be noted that when the handle body 311 drives the bending roller 32 to bend the sheet material 4 , the bending roller 32 rotates around the central axis of the connecting shaft 35 .

[0072] Reference Figure 2-Figure 5 In some embodiments of the present application, the side walls of the first pivot arm 312 and the second pivot arm 313 are both provided with a connecting groove 314 and a first waist-shaped hole 315, the connecting groove 314 of the first pivot arm 312 is arranged opposite to the connecting groove 314 of the second pivot arm 313, the end wall of each pivot arm provided with the connecting groove 314 is adjacent to the end wall provided with the first waist-shaped hole 315, and the connecting groove 314 of each pivot arm is connected to the corresponding first waist-shaped hole 315.

[0073] Specifically, along the first direction of the mounting plate 1, the right end wall of the first pivot arm 312 is provided with a connecting groove 314, and the left end wall of the second pivot arm 313 is provided with a connecting groove 314, and the connecting groove 314 passes through the first pivot arm 312 and the second pivot arm 313. Along the second direction of the mounting plate 1, the front end wall of the first pivot arm 312 is provided with a first waist-shaped hole 315, and the front end wall of the second pivot arm 313 is provided with a first waist-shaped hole 315. The connecting groove 314 located at the first pivot arm 312 is connected to the first waist-shaped hole 315 located at the first pivot arm 312, and the connecting groove 314 located at the second pivot arm 313 is connected to the first waist-shaped hole 315 located at the second pivot arm 313.

[0074] In addition, the end of the connecting shaft 35 is inserted into the connecting groove 314, and the first fastener passes through the first waist-shaped hole 315 and the connecting shaft 35 in sequence to fix the connecting shaft 35 and the corresponding pivot arm. Specifically, the left end of the connecting shaft 35 extends into the connecting groove 314 located in the first pivot arm 312, and the right end of the connecting shaft 35 extends into the connecting groove 314 located in the second pivot arm 313. The first fastener passes through the first waist-shaped hole 315 located in the first pivot arm 312 and the left end of the connecting shaft 35 in sequence, and the first fastener passes through the first waist-shaped hole 315 located in the second pivot arm 313 and the right end of the connecting shaft 35 in sequence, thereby achieving the technical effect of fixing the connecting shaft 35 to the driving handle 31.

[0075] In some specific embodiments, the first fastener may be a screw, but the present application is not limited thereto, and the first fastener may also be a bolt or a pin, etc.

[0076] Furthermore, when the connecting shaft 35 drives the bending roller 32 to move closer to or away from the bending piece 33 to adjust the size of the bending gap 34, the end of the connecting shaft 35 moves in the connecting groove 314 along the height direction of the mounting plate 1, and when the end of the connecting shaft 35 is at different positions in the connecting groove 314, the end of the connecting shaft 35 is arranged opposite to the first waist-shaped hole 315. When the size of the bending gap 34 is equal to the preset size, the first fastener fixes the connecting shaft 35 to the driving handle 31, thereby achieving the technical effect that the sheet metal bending device 100 can bend sheets 4 of different thicknesses.

[0077] Reference Figure 1 , Figure 2 , Fig. 9 and Fig.10 In some embodiments of the present application, the bending part 33 has adjacent pressing surfaces 331 and forming surfaces 332, the pressing surfaces 331 are suitable for being arranged opposite to the bending roller 32 and pressing against the sheet material 4, the forming surface 332 is located on the side of the pressing surface 331 away from the sheet material 4, and there is an angle between the pressing surface 331 and the forming surface 332.

[0078] Specifically, the bending piece 33 is arranged at the edge of the mounting plate 1. Along the height direction of the mounting plate 1, the pressing surface 331 is located at the bottom wall of the bending piece 33, and the forming surface 332 is located on the side of the pressing surface 331 away from the mounting plate 1. In some specific embodiments, the angle between the pressing surface 331 and the forming surface 332 can be 150°, and in other specific embodiments, the angle between the pressing surface 331 and the forming surface 332 can be 140°.

[0079] In addition, the forming surface 332 is suitable for abutting against the sheet material 4. When the sheet material 4 is bent by the bending roller 32, the sheet material 4 abuts against the forming surface 332. Specifically, after the bending portion 42 of the sheet material 4 passes through the bending gap 34, the upper end wall of the bending portion 42 of the sheet material 4 abuts against the pressing surface 331. When the bending roller 32 drives the bending portion 42 of the sheet material 4 to rotate upward and abuts against the forming surface 332, the bending roller 32 completes the bending of the sheet material 4, thereby achieving the technical effect of controlling the bending angle of the sheet material 4 by the angle between the pressing surface 331 and the forming surface 332.

[0080] Reference Figure 6-Figure 8 In some embodiments of the present application, a first limiting portion 13 and a second limiting portion 14 are provided at the edge of the mounting plate 1. The first limiting portion 13 and the second limiting portion 14 are arranged opposite to and spaced apart along a first direction of the mounting plate 1. The side walls of the first limiting portion 13 and the second limiting portion 14 are both provided with limiting grooves 141. The limiting grooves 141 of the first limiting portion 13 are arranged opposite to the limiting grooves 141 of the second limiting portion 14.

[0081] Specifically, the first limiting portion 13 is located at the left end of the mounting plate 1 , the second limiting portion 14 is located at the right end of the mounting plate 1 , the right end wall of the first limiting portion 13 is provided with a limiting groove 141 , and the left end wall of the second limiting portion 14 is provided with a limiting groove 141 .

[0082] In addition, the bending member 33 can be removably installed in the limiting groove 141. Specifically, along the first direction of the mounting plate 1, the left end portion of the bending member 33 can be removably installed in the limiting groove 141 located in the first limiting portion 13, and the right end portion of the bending member 33 can be removably installed in the limiting groove 141 located in the second limiting portion 14.

[0083] In some specific embodiments, when the bending portion 42 of the sheet 4 needs to be bent 180°, the bending piece 33 blocks the sheet 4, making it impossible to achieve 180° bending of the sheet 4 in one bending. Therefore, the sheet 4 needs to be bent twice to achieve 180° bending of the sheet 4.

[0084] When the sheet material 4 is bent once, the bending piece 33 is installed in the limiting groove 141, and then the driving handle 31 drives the bending roller 32 to bend the sheet material 4, so that the bending portion 42 of the sheet material 4 stops against the forming surface 332 of the bending piece 33 to complete one bending of the sheet material 4, and then the driving handle 31 is driven to drive the bending roller 32 to rotate away from the sheet material 4, the sheet material 4 undergoes elastic deformation and separates from the forming surface 332 of the bending piece 33, the bending piece 33 is taken out of the limiting groove 141, and then the driving handle 31 is driven to drive the bending roller 32 to rotate close to the sheet material 4 and bend the sheet material 4 to 180°, thereby achieving the technical effect of bending the sheet material 4 180°.

[0085] It should be noted that after the sheet 4 is bent once, the sheet 4 has a bending direction, and the angle between the bending portion 42 of the sheet 4 and the fixing portion 41 of the sheet 4 is less than 90°, that is, when the sheet 4 is bent for a second time, it is not necessary to control the bending direction of the sheet 4 through the bending member 33. When the sheet 4 is bent for a second time, it is only necessary to fix the fixing portion 41 of the sheet 4 to the mounting plate 1, and then drive the driving handle 31 to drive the bending roller 32 to bend the sheet 4, and the bending portion 42 of the sheet 4 overlaps the upper end wall of the fixing portion 41 of the sheet 4 according to the bending direction of the sheet 4 during the first bending.

[0086] In some specific embodiments, when the sheet material 4 is bent for a second time, the operator may press the fixing portion 41 of the sheet material 4 onto the mounting plate 1 by hand, but the present application is not limited thereto, and the operator may also fix the fixing portion 41 of the sheet material 4 onto the mounting plate 1 by a fixing clamp.

[0087] Further, along the second direction of the mounting plate 1, the limiting groove 141 located at the first limiting portion 13 can be set at the front end wall of the first limiting portion 13, and the limiting groove 141 located at the second limiting portion 14 can be set at the front end wall of the second limiting portion 14, the left end wall of the bending member 33 is limitedly matched with the right end wall of the limiting groove 141 located at the first limiting portion 13, the right end wall of the bending member 33 is limitedly matched with the left end wall of the limiting groove 141 located at the second limiting portion 14, and the rear end wall of the bending member 33 is limitedly matched with the rear end wall of the limiting groove 141 located at the second limiting portion 14 and the rear end wall of the limiting groove 141 located at the first limiting portion 13.

[0088] When the bending roller 32 bends the sheet material 4 upward, the sheet material 4 applies a force to the rear end wall of the bending member 33 toward the limiting groove 141, and the bending member 33 cooperates with the limiting groove 141 to achieve the technical effect of limiting the bending member 33 in the limiting groove 141.

[0089] Moreover, after the sheet 4 completes one bending, the bending part 33 can be taken out from above the limiting groove 141 or in front of the limiting groove 141. Such a setting can reduce the difficulty of taking out the bending part 33 and can reduce the difficulty of installing the bending part 33, thereby improving the usability of the sheet bending device 100.

[0090] In some specific embodiments, the bending part 33 can be interference fit with the first limit portion 13 and the second limit portion 14. In other specific embodiments, the bending part 33 can be clamped to the first limit portion 13 and the second limit portion 14 through a clamping structure. In other specific embodiments, the bending part 33 can be locked to the first limit portion 13 and the second limit portion 14 through threaded fasteners.

[0091] Reference Figure 1 and Figure 6 In some embodiments of the present application, the limiting mechanism 2 includes a plurality of limiting members 21. Along the height direction of the mounting plate 1, the plurality of limiting members 21 are all arranged on the upper end wall of the mounting plate 1. The plurality of limiting members 21 are spaced apart along the circumferential direction of the sheet material 4. The plurality of limiting members 21 cooperate with at least two adjacent side walls of the sheet material 4 to limit the position of the sheet material 4.

[0092] In some specific embodiments, there are three limit members 21. Along the first direction of the mounting plate 1 and along the second direction of the mounting plate 1, one of the three limit members 21 cooperates with the left side wall of the sheet 4, one of the three limit members 21 cooperates with the rear end wall of the sheet 4, and one of the three limit members 21 cooperates with the right side wall of the sheet 4.

[0093] By using multiple limit members 21 and at least two adjacent side walls of the sheet material 4, it is possible to prevent the sheet material 4 from deviating from the preset placement position when the bending roller 32 bends the sheet material 4, causing the bending roller 32 to be unable to bend the sheet material 4 according to the preset bending direction, thereby improving the working reliability of the sheet material bending device 100.

[0094] It should be noted that the limiting member 21 is limitedly matched with the fixing portion 41 of the sheet material 4 , the bending portion 42 of the sheet material 4 is not limitedly matched with the limiting member 21 , and the side wall of the sheet material 4 is limitedly matched with at least one limiting member 21 .

[0095] Reference Figure 1 , Figure 6 and Fig. 9 In some embodiments of the present application, the top wall of the mounting plate 1 is provided with a plurality of mounting holes 15, and the plurality of mounting holes 15 are spaced apart along the radial direction of the mounting plate 1, and the limiting member 21 is provided with a second waist-shaped hole 211 suitable for being opposite to at least one mounting hole 15, and the second waist-shaped hole 211 is constructed as a through hole, and the second fastener passes through the second waist-shaped hole 211 and the mounting hole 15 in sequence to fix the limiting member 21 and the mounting plate 1.

[0096] Specifically, the second fastener fixes the limit member 21 on the mounting plate 1, thereby preventing the limit member 21 from deviating from the preset position and causing the sheet 4 to deviate from the preset placement position when the bending roller 32 bends the sheet 4. This can prevent the bending roller 32 from being unable to bend the sheet 4 in the preset bending direction, thereby further improving the working reliability of the sheet bending device 100.

[0097] Furthermore, by setting a second waist-shaped hole 211 on the limiting member 21, the second waist-shaped hole 211 can be arranged relative to a plurality of mounting holes 15, so that the installation position of the limiting member 21 on the mounting plate 1 can be adjusted, so that the limiting member 21 can limit the sheets 4 of different lengths and widths, thereby improving the user experience of the sheet bending device 100.

[0098] In some specific embodiments, the second fastener may be a screw, but the present application is not limited thereto, and the second fastener may also be a bolt or a pin, etc.

[0099] Reference Figure 6-Figure 8In some embodiments of the present application, a first limiting portion 13 and a second limiting portion 14 are provided at an edge of the mounting plate 1. The first limiting portion 13 and the second limiting portion 14 are arranged opposite to and spaced apart along a first direction of the mounting plate 1. The bending member 33 is installed between the first limiting portion 13 and the second limiting portion 14. The first limiting portion 13 and / or the second limiting portion 14 are provided with a positioning bevel 142. Specifically, the positioning bevel 142 of the first limiting portion 13 is located on the right end wall of the first limiting portion 13, and the positioning bevel 142 of the second limiting portion 14 is located on the left end wall of the second limiting portion 14. The positioning bevel 142 is arranged opposite to at least one limiting member 21, and the sheet material 4 is clamped between the positioning bevel 142 and the corresponding limiting member 21.

[0100] exist Figure 6 In the shown embodiment, the mounting plate 1 is provided with a first limiting portion 13 and a second limiting portion 14, and there are two limiting members 21. Along the second direction of the mounting plate 1, one of the two limiting members 21 is located behind the sheet material 4 and cooperates with the limiting position of the rear end wall of the sheet material 4, and the other of the two limiting members 21 is located on the right side of the sheet material 4 and cooperates with the limiting position of the right side wall of the sheet material 4. The positioning inclined surface 142 of the first limiting portion 13 is arranged opposite to the limiting member 21 located on the right side of the sheet material 4, and the positioning inclined surface 142 of the first limiting portion 13 cooperates with the limiting position of the left side wall of the sheet material 4.

[0101] By clamping the sheet material 4 between the positioning inclined surface 142 and the limiting member 21 opposite to the positioning inclined surface 142, the first limiting portion 13 and / or the second limiting portion 14 can not only limit the bending member 33, but the first limiting portion 13 and / or the second limiting portion 14 can also limit the sheet material 4, thereby reducing the number of limiting members 21 and further reducing the manufacturing cost of the sheet material bending device 100.

[0102] Reference Figure 1 and Figure 6 In some embodiments of the present application, the mounting plate 1 is provided with a mounting groove 16, and the mounting groove 16 penetrates the mounting plate 1 along the height direction of the mounting plate 1. The third fastener passes through the mounting groove 16 and the mounting wall in sequence, and the third fastener is used to lock or unlock the mounting plate 1 and the mounting wall.

[0103] Specifically, by using the third fastener to lock the mounting plate 1 to the mounting wall, it is possible to prevent the driving handle 31 from synchronously driving the mounting plate 1 to move when the bending roller 32 bends the sheet material 4, causing the bending roller 32 to be unable to bend the sheet material 4, thereby improving the working reliability of the sheet material bending device 100.

[0104] In some specific embodiments, the third fastener may be a screw, but the present application is not limited thereto, and the third fastener may also be a bolt or a pin, etc.

[0105] In some specific embodiments, the installation wall surface may be a table top of a workbench or the like.

[0106] Based on this, refer to Fig.11 The present application further proposes a sheet metal bending method, the bending method comprising:

[0107] S1. Sleeve the insulating tube on the outside of the sheet material, then place the sheet material with the insulating tube on the mounting plate and limit the sheet material. Specifically, the worker can sleeve the insulating tube on the outside of the sheet material by hand, and then place the sheet material with the insulating tube on the mounting plate. The limiting member and the first limiting part or the second limiting part jointly limit the end of the sheet material placed on the mounting plate, and the other end of the sheet material passes through the bending gap and is clamped between the bending member and the bending roller.

[0108] It should be noted that when the insulating tube is a heat shrink tube, after the worker sleeves the insulating tube on the outside of the plate material, the worker heats the plate material so that the heat shrink tube tightly covers the outside of the plate material.

[0109] S2. Bend the sheet material to a first preset angle. Specifically, along the height direction of the mounting plate, the worker drives the driving handle to drive the bending roller to rotate upward, and the bending roller drives the sheet material to rotate upward to the first preset angle. When the bending roller bends the sheet material, the bending roller rotates around the pivot axis between the bending roller and the driving handle.

[0110] In some specific embodiments, the first preset angle can be 150°, and the first preset angle can be the angle between the pressing surface of the bending part and the forming surface of the bending part, that is, the bending roller drives the sheet material to rotate upward and makes the bent end of the sheet material stop against the forming surface of the bending part.

[0111] S3. Take out the bent part from the mounting plate. Specifically, after the bending roller bends the sheet material to a first preset angle, the worker drives the driving handle to drive the bending roller to rotate downward, the bending roller is separated from the sheet material, the bent end of the sheet material undergoes elastic deformation and moves away from the bending part, and then the worker takes out the bent part.

[0112] S4, bending the sheet material to a second preset angle. Specifically, after the bent part is taken out, the worker drives the driving handle to drive the bending roller to rotate upward, and the bending roller drives the sheet material to bend to the second preset angle to complete the bending process of the sheet material.

[0113] In some specific embodiments, the second preset angle may be 180°.

[0114] Thus, a heat shrink sleeve is firstly sleeved on the outer side of the sheet material, and then the driving handle is driven to drive the bending roller to bend the sheet material to a first preset angle, so that the sheet material has a bending direction, and when the bending roller bends the sheet material, the bending roller rotates around the pivot axis between the bending roller and the driving handle, and then the bending piece is taken out from the mounting plate, and finally the driving handle is driven to drive the bending roller to bend the sheet material to a second preset angle. Compared with the prior art, the bending roller will not over-compress and over-pull the insulating tube, thereby preventing the insulating tube from breaking, thereby reducing the processing difficulty of the sheet material and improving the processing efficiency of the sheet material.

[0115] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sheet metal bending device, characterized in that: include: A mounting plate (1) and a limiting mechanism (2), wherein the limiting mechanism (2) is arranged on the mounting plate (1), a sheet material (4) is suitable for being placed on the mounting plate (1), and the limiting mechanism (2) cooperates with the sheet material (4) in limiting manner; A bending mechanism (3), the bending mechanism (3) comprising a driving handle (31), a bending roller (32) and a bending member (33), the driving handle (31) being pivotally mounted on the mounting plate (1), the bending roller (32) being pivotally mounted on the driving handle (31), the bending member (33) being arranged on the mounting plate (1), the bending member (33) being arranged opposite to the bending roller (32) and defining a bending gap (34), The sheet material (4) is clamped between the bending member (33) and the bending roller (32), and when the driving handle (31) is driven, the driving handle (31) drives the bending roller (32) to rotate around the pivot axis between the driving handle (31) and the mounting plate (1), so that the bending roller (32) bends the sheet material (4), and the bending roller (32) rotates around the pivot axis of the bending roller (32); The driving handle (31) comprises a handle body (311), a first pivot arm (312) and a second pivot arm (313); the first pivot arm (312) and the second pivot arm (313) are arranged relatively spaced apart; the handle body (311) is fixedly connected between a fixed end of the first pivot arm (312) and a fixed end of the second pivot arm (313); and the bending roller (32) is pivotally installed between the first pivot arm (312) and the second pivot arm (313); The edge of the mounting plate (1) is provided with a first connecting portion (11) and a second connecting portion (12), the first connecting portion (11) and the second connecting portion (12) are arranged opposite to each other and spaced apart along a first direction of the mounting plate (1), the free end of the pivot arm is pivotally connected to the corresponding connecting portion, the pivot axis between the pivot arm and the corresponding connecting portion is configured as the rotation axis, and when the handle body (311) is driven, the first pivot arm (312) and the second pivot arm (313) are driven to rotate around the rotation axis, so as to drive the bending roller (32) to rotate around the rotation axis; The bending member (33) comprises adjacent pressing surfaces (331) and forming surfaces (332); the pressing surfaces (331) are suitable for being arranged opposite to the bending roller (32) and for pressing against the sheet material (4); the forming surface (332) is located on the side of the pressing surface (331) away from the sheet material (4); an angle is formed between the pressing surface (331) and the forming surface (332); the forming surface (332) is suitable for stopping against the sheet material (4); when the sheet material (4) is bent by the bending roller (32), the sheet material (4) stops against the forming surface (332).

2. A sheet metal bending device according to claim 1, characterized in that: The bending mechanism (3) further comprises a connecting shaft (35), a first limiting sleeve (36) and a second limiting sleeve (37); the connecting shaft (35) is arranged between the first pivot arm (312) and the second pivot arm (313); the first limiting sleeve (36) and the second limiting sleeve (37) are arranged opposite to each other and spaced apart along the first direction and are both sleeved on the outer peripheral wall of the connecting shaft (35); the bending roller (32) is pivotally sleeved on the outer peripheral wall of the connecting shaft (35) and is located between the first limiting sleeve (36) and the second limiting sleeve (37); the bending roller (32) is limitedly matched with the first limiting sleeve (36) and the second limiting sleeve (37).

3. A sheet metal bending device according to claim 2, characterized in that: The side walls of the first pivot arm (312) and the second pivot arm (313) are both provided with a connecting groove (314) and a first waist-shaped hole (315); the connecting groove (314) of the first pivot arm (312) and the connecting groove (314) of the second pivot arm (313) are arranged opposite to each other; the end wall of each pivot arm provided with the connecting groove (314) is arranged adjacent to the end wall provided with the first waist-shaped hole (315); and the connecting groove (314) of each pivot arm is connected to the corresponding first waist-shaped hole (315); the end of the connecting shaft (35) is inserted into the connecting groove (314); the first fastener passes through the first waist-shaped hole (315) and the connecting shaft (35) in sequence to fix the connecting shaft (35) and the corresponding pivot arm.

4. A sheet metal bending device according to claim 1, characterized in that: The edge of the mounting plate (1) is provided with a first limiting portion (13) and a second limiting portion (14); the first limiting portion (13) and the second limiting portion (14) are arranged opposite to and spaced apart from each other along a first direction of the mounting plate (1); the side walls of the first limiting portion (13) and the second limiting portion (14) are both provided with limiting grooves (141); the limiting grooves (141) of the first limiting portion (13) and the limiting grooves (141) of the second limiting portion (14) are arranged opposite to each other; and the bending member (33) is detachably mounted in the limiting grooves (141).

5. A sheet metal bending device according to claim 1, characterized in that: The limiting mechanism (2) comprises a plurality of limiting members (21), wherein the plurality of limiting members (21) are arranged at intervals along the circumferential direction of the plate material (4), and the plurality of limiting members (21) cooperate with at least two adjacent side walls of the plate material (4) to limit the plate material (4).

6. A sheet metal bending device according to claim 5, characterized in that: The top wall of the mounting plate (1) is provided with a plurality of mounting holes (15), the plurality of mounting holes (15) are spaced apart in a radial direction of the mounting plate (1), the limiting member (21) is provided with a second waist-shaped hole (211) suitable for being opposite to at least one of the mounting holes (15), and the second fastener passes through the second waist-shaped hole (211) and the mounting hole (15) in sequence to fixedly connect the limiting member (21) and the mounting plate (1).

7. A sheet metal bending device according to claim 5, characterized in that: The edge of the mounting plate (1) is provided with a first limiting portion (13) and a second limiting portion (14); the first limiting portion (13) and the second limiting portion (14) are arranged opposite to and spaced apart from each other along a first direction of the mounting plate (1); the bending member (33) is installed between the first limiting portion (13) and the second limiting portion (14); the first limiting portion (13) and / or the second limiting portion (14) are provided with a positioning inclined surface (142); the positioning inclined surface (142) is arranged opposite to at least one of the limiting members (21); and the sheet material (4) is clamped between the positioning inclined surface (142) and the corresponding limiting member (21).

8. A sheet metal bending device according to claim 1, characterized in that: The mounting plate (1) is provided with a mounting groove (16), and a third fastener passes through the mounting groove (16) and the mounting wall surface in sequence, and the third fastener is used to lock or unlock the mounting plate (1) and the mounting wall surface.

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