Auxiliary device for bending steel plate

Abstract

The invention relates to the technical field of steel plate bending, and particularly discloses an auxiliary device for steel plate bending, which comprises a wedge-shaped block, the wedge-shaped block is a right triangle, a rotatable bending abutting plate is mounted on the bevel edge of the wedge-shaped block, and a driving mechanism for driving the bending abutting plate to rotate is mounted on the wedge-shaped block. The right-angle sides of the wedge-shaped blocks are inwards provided with positioning grooves with the ends staggered, a plurality of positioning structures capable of being arranged in the positioning holes respectively are connected into the positioning grooves in a sliding and limiting mode, and each positioning structure comprises a positioning block connected with the corresponding positioning groove in a sliding and limiting mode and a positioning rod vertically connected into the corresponding positioning block in a sliding and limiting mode. The thickness of the positioning block is equal to that of the positioning groove, a fixing rod which penetrates through the bottom of the positioning block and penetrates through the positioning hole is formed at the bottom end of the positioning rod, and a first external thread groove is formed in the section, exposed out of the positioning hole, of the bottom end of the fixing rod and meshed with a nut. And a clamping block capable of adjusting the corner supporting angle according to the required bending angle of the steel plate does not exist.

Description

Technical Field

[0001] The present application relates to the technical field of steel plate bending, and specifically discloses an auxiliary device for steel plate bending. Background Art

[0002] Steel plate is a flat steel product that can be directly rolled or cut from wide steel strip.

[0003] When using steel plates, they usually need to be bent into different shapes. The bending of steel plates includes using a steel plate bending machine, or installing a hydraulic press on an operating table and positioning the steel plate with a fixture installed on the operating table, and then bending the steel plate with a hydraulic press.

[0004] For long and narrow steel plates, the bending is mainly done by first fixing them on the operating table with a clamp, and then by a hydraulic press. The operating table is provided with a number of positioning holes distributed in a matrix. The clamps are usually pre-tightened on the operating table with bolts in the positioning holes, and are placed according to the bending shape of the steel plate, and are used in conjunction with the hydraulic press to achieve bending of the steel plate at a predetermined angle.

[0005] Existing clamps are usually rectangular clamps, which can usually only achieve right-angle bending of steel plates. When the steel plate needs to be bent at an angle of, for example, 30 degrees or 60 degrees, specially produced clamps with specific angles are required to support the part of the steel plate to be bent.

[0006] In the prior art, the angle of the corner of the clamp block is fixed, and there is no clamp block that can adjust the corner support angle according to the required bending angle of the steel plate.

[0007] The present invention provides an auxiliary device for bending a steel plate to solve the above-mentioned problem. Summary of the invention

[0008] The purpose of the present invention is to solve the problem that the angle of the corner of the traditional clamp block is fixed and there is no clamp block that can adjust the corner support angle according to the required bending angle of the steel plate.

[0009] In order to achieve the above-mentioned object, the basic scheme of the present invention provides an auxiliary device for bending a steel plate, comprising a wedge block, the wedge block is a right triangle, and the minimum internal angle of the wedge block is not greater than 30 degrees;

[0010] The oblique side of the wedge block is provided with a bending plate that rotates around the corner where the minimum inner angle is located, and the diagonal side of the minimum inner angle on the wedge block is provided with a driving mechanism for driving the bending plate to rotate;

[0011] The right-angled sides of the wedge block are all opened inwardly with positioning grooves with ends staggered with each other, and the positioning grooves are all slidably limited and connected with a number of positioning structures that can be respectively placed in the positioning holes, and the positioning structures include a positioning block connected to the positioning groove with a sliding limit and a positioning rod vertically limited and slidably connected in the positioning block, the thickness of the positioning block is equal to the thickness of the positioning groove, and the bottom end of the positioning rod is formed with a fixing rod that passes through the bottom of the positioning block and passes through the positioning hole, and a section of the bottom end of the fixing rod exposed from the positioning hole is opened with a first external thread groove and a nut is meshed with the first external thread groove.

[0012] Furthermore, the positioning block is at the same height as the wedge-shaped block, a T-shaped sliding block is provided on the inner side of the positioning block, and a T-shaped sliding groove is provided in the positioning groove for accommodating the T-shaped sliding block.

[0013] Furthermore, a clamping block for clamping the steel plate is provided on the side of the positioning block away from the positioning groove.

[0014] Furthermore, the positioning rod is provided with an internal meshing hole with an internal thread groove from the top downward, and the positioning block is vertically provided with a first vertical slide groove on the side away from the positioning groove for the clamping block to slide vertically and passes through the positioning rod and connects with the internal meshing hole. The clamping block is vertically slidably connected in the vertical slide groove, and a lifting mechanism is threadedly connected in the internal meshing hole to drive the clamping block to move up and down.

[0015] Furthermore, the lifting mechanism includes a lifting shaft, lifting columns coaxially fixed to the outside of both ends of the lifting shaft, and a synchronous ring coaxially sleeved outside the lifting shaft between the lifting columns, the outer wall of the lifting column is provided with a second external thread groove threadedly connected to the internal meshing hole, and a connecting piece for driving the clamping block to lift and lower synchronously is provided between the synchronous ring and the clamping block.

[0016] Furthermore, the connecting member includes limit plates respectively fixed to the upper and lower sides of the synchronization ring, the inner end of the clamping block is slidably limited and connected between the limit plates on the upper and lower sides, and a compression spring is fixed between the synchronization ring and the inner end of the clamping block.

[0017] Furthermore, the abutting block is a right-angled triangle block, and the inclined surface of the right-angled triangle block is arranged upward.

[0018] Furthermore, a rounded corner is provided at the corner where the minimum inner angle of the wedge block is located for transition, a bending shaft is coaxially connected to the wedge block for rotation with the rounded corner, a bending tube with the same diameter as the rounded corner is coaxially fixed outside the bending shaft, a bending abutment plate is fixed to the bending tube, and the outer wall of the bending abutment plate and the contact end of the bending tube are tangent to the outer wall of the bending tube.

[0019] Furthermore, the driving mechanism includes a cylinder fixedly connected to the diagonal side of the smallest inner angle of the wedge block, and a push block fixedly connected to the output end of the cylinder. The push block includes a linear push plate fixedly connected to the output end of the cylinder, and an inclined push plate fixedly connected to the end of one side of the linear push plate close to the bending abutment plate and inclined toward the bending abutment plate. The end of the inclined push plate is slidably limitedly connected to the inner end surface of the bending abutment plate, and a cavity is opened in the wedge block for the push block to move.

[0020] The principle and effect of this scheme are:

[0021] 1. Compared with the prior art, the present invention uses a wedge block in the form of a right-angled triangle, and a positioning structure and a bending abutment plate installed on the wedge block to form an auxiliary device for bending a steel plate. By controlling the extension length of the output end of the cylinder, the bending abutment plate is driven to rotate from a position flush with the hypotenuse to the required bending angle of the steel plate, thereby solving the problem of the traditional clamping block having a fixed angle at the corner and having no clamping block that can adjust the corner support angle according to the required bending angle of the steel plate.

[0022] 2. Compared with the prior art, the present invention has positioning structures installed on the two right-angled sides of the wedge block. During installation, at least two groups of positioning structures are installed on one right-angled side, and at least one group of positioning structures is installed on the other right-angled side, so that the wedge block can be fixed on the workbench. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A schematic diagram of clamping of an auxiliary device for bending a steel plate proposed in an embodiment of the present application is shown;

[0025] Figure 2 A schematic diagram of clamping of an auxiliary device for bending a steel plate proposed in an embodiment of the present application is shown;

[0026] Figure 3 A top view of a steel plate bending auxiliary device proposed in an embodiment of the present application is shown;

[0027] Figure 4 A partial schematic diagram of a steel plate bending auxiliary device proposed in an embodiment of the present application is shown;

[0028] Figure 5 A schematic diagram of a steel plate bending auxiliary device proposed in an embodiment of the present application is shown;

[0029] Figure 6 A partial schematic diagram of an auxiliary device for bending a steel plate proposed in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0030] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0031] The figure marks in the drawings of the specification include: workbench 1, wedge block 2, rectangular block 3, steel plate 4, bending abutment plate 5, cylinder 6, bending shaft 7, positioning block 8, positioning rod 9, lifting column 10, limit plate 11, tightening block 12, tilting push plate 13, limit rotating rod 14, limit collar 15, limit sleeve 16, fixing rod 17, nut 18, synchronization collar 19.

[0032] An auxiliary device for bending a steel plate, for example Figure 1 and Figure 3 As shown:

[0033] It includes a wedge block, which is a right-angled triangle block, and the minimum internal angle of the wedge block is equal to 30 degrees. In any other embodiment, the minimum internal angle of the wedge block does not exceed 30 degrees.

[0034] During installation, the wedge block is positioned and installed on the workbench 1 through the positioning holes on the workbench 1 .

[0035] Specifically, Figure 5 and Figure 6 As shown, the wedge block is constructed with the following structure:

[0036] Positioning grooves with mutually staggered ends are provided inwardly at the connecting parts of the two right-angle sides of the wedge-shaped block, and two mutually parallel T-shaped sliding grooves are provided in the positioning grooves.

[0037] The positioning grooves are all equipped with positioning structures that can be respectively placed in the positioning holes, and the positioning structures include positioning blocks 8 and positioning rods 9. The thickness of the positioning block 8 is equal to the thickness of the positioning groove, and the height of the positioning block 8 is equal to the height of the wedge block and the height of the positioning groove. Two T-shaped sliding blocks that can slide into the T-shaped sliding grooves are formed integrally on the inner side of the positioning block 8. The positioning block 8 has a first receiving groove vertically downward from the top for the positioning rod 9 to slide into, and the positioning blocks 8 on both sides of the first receiving groove also have first limiting grooves vertically downward. The first limiting blocks that slide in the first limiting grooves are respectively formed integrally on both sides of the positioning rod 9, and a fixing rod 17 is also formed integrally at the bottom end of the positioning rod 9. The fixing rod 17 passes through the bottom of the positioning block 8 and the positioning hole, and the diameter of the fixing rod 17 is smaller than the diameter of the positioning rod 9. A first external thread groove is formed on the outer wall of a section of the positioning hole exposed at the bottom end of the fixing rod 17, and a nut 18 is engaged through the first external thread groove.

[0038] In this embodiment, a pressing block 12 for pressing against the steel plate 4 is installed on the side of the positioning block 8 away from the positioning groove. The pressing block 12 is specifically a right-angled triangle block, and the inclined surface of the right-angled triangle block is set upward. Specifically, the positioning rod 9 has an internal meshing hole with an internal thread groove from the top downward, and a vertical slide groove is vertically opened on the side of the positioning block 8 away from the positioning groove. The vertical slide groove penetrates the positioning rod 9 and is connected to the internal meshing hole, and the pressing block 12 slides vertically in the vertical slide groove.

[0039] A lifting mechanism for driving the clamping block 12 to move up and down is installed in the positioning rod 9 through the inner meshing hole. The lifting mechanism includes a lifting shaft, a lifting column 10 coaxially fixed on the outside of both ends of the lifting shaft, and a synchronous ring 19 coaxially sleeved outside the lifting shaft between the lifting columns 10. The outer wall of the lifting column 10 is provided with a second external thread groove that is threadedly connected to the inner meshing hole, and a connecting piece for driving the clamping block 12 to move up and down synchronously is installed between the synchronous ring 19 and the clamping block 12, and a cross groove is provided on the top of the lifting column 10. Among them, the connecting piece includes a limit plate 11 welded on the upper and lower sides of the synchronous ring 19, the inner end of the clamping block 12 is installed between the limit plates 11 on the upper and lower sides, and can only slide between the limit plates 11 on the upper and lower sides, and a compression spring is fixedly installed between the synchronous ring 19 and the inner end of the clamping block 12.

[0040] like Figure 3 , Figure 4 and Figure 5 As shown, the oblique side of the wedge block is equipped with a bending plate 5 that rotates around the corner where the minimum inner angle is located, and the diagonal side of the minimum inner angle on the wedge block is equipped with a driving mechanism for driving the bending plate 5 to rotate.

[0041] Specifically, the corner where the minimum inner angle of the wedge block is located is transitioned with a rounded corner, and a rotatable bending shaft 7 coaxial with the rounded corner is installed between the two end faces, and a bending rotating tube with the same diameter as the rounded corner is coaxially fixedly installed outside the bending rotating shaft 7. The bending rotating shaft 7 passes through the top end face of the wedge block, and the top surface of the bending rotating shaft 7 is flush with the top end face of the wedge block 2, and a circumferential scale is engraved in the circumferential direction, and a pointer is engraved inward at the transition between the right angle side of the wedge block 2 and the rounded corner. The bending abutment plate 5 is fixedly installed on the bending rotating tube, and the outer wall of the bending abutment plate 5 and the contact end of the bending rotating tube are tangent to the outer wall of the bending rotating tube.

[0042] In this embodiment, a driven plate is welded to the inner wall of the bent abutment plate 5, and a first driven groove is formed on the driven plate. Second driven grooves are formed inwardly on the inner walls on both sides of the first driven groove.

[0043] The driving mechanism includes a cylinder 6 fixedly mounted on the diagonal side of the smallest inner angle of the wedge block, and a push block fixedly mounted on the output end of the cylinder 6. A chamber for the push block to move is installed in the wedge block 2. The push block specifically includes a linear push plate fixedly mounted on the output end of the cylinder 6, and an inclined push plate 13 fixedly mounted on the right end of the linear push plate and inclined toward the bent plate. The end of the inclined push plate 13 extends into the first driven groove and is connected to the first driven groove for sliding and limiting movement. Figure 3 and Figure 4 As shown, a limiting collar 15 is fixedly installed at the end of the tilting push plate 13, and a limiting rotating rod 14 is sleeved in the limiting collar 15. A limiting sleeve 16 is installed on the limiting rotating rods 14 on both sides of the limiting collar 15, and the diameter of the limiting sleeve 16 is larger than the diameter of the limiting collar 15. The two ends of the limiting rotating rod 14 are respectively placed in the second driven groove and can rotate therein, and the limiting sleeve 16 is installed in the first driven groove and can rotate therein. During the movement of the tilting push plate 13, the limiting rotating rod 14 and the limiting sleeve 16 drive the bending abutment plate 5 to rotate around the bending rotating tube and the bending rotating shaft 7.

[0044] In this embodiment, the positioning groove is located on the right angle side where the cylinder 6 is located, and is located on the left side of the cylinder 6.

[0045] When the present invention is used, Figure 1 As shown, when the steel plate 4 needs to be bent more than 90 degrees, two positioning blocks 8 are first installed in the positioning grooves of the right-angled side where the fillet is located, and are placed at both ends respectively, and a positioning block 8 is installed on the other right-angled side;

[0046] Align the positioning holes on the workbench 1, align the positioning blocks 8 and the positioning holes, and place the positioning rods 9 into the positioning blocks 8 accordingly, so that the fixing rods 17 at the bottom of the positioning rods 9 extend into the positioning holes, and screw bolts under the workbench 1 to fix the positioning blocks 8 and the fixing rods 17 on the workbench 1, and then fix the wedge blocks 2 through the positioning blocks 8 distributed in a triangular shape;

[0047] Furthermore, by installing the lifting mechanism into the inner meshing hole of the positioning rod 9, and installing the clamping block 12 at the same time, the top lifting column 10 is rotated through the cross groove, and the bottom lifting column 10 is synchronously driven to rotate through the lifting shaft, and the lifting column 10 and the middle synchronization ring 19 are moved up and down through the threaded engagement with the inner meshing hole, thereby synchronously driving the clamping block 12 to move up and down, so as to move the clamping block 12 to a predetermined height for clamping the steel plate 4;

[0048] Further, a rectangular block 3 is tightened onto the workbench 1 by bolts, as a functional block, to assist in tightening the steel plate 4 structure, and the right angle side of the wedge block 2 is opposite to the rectangular block 3, so that the distance between them is equal to the thickness of the steel plate 4;

[0049] Afterwards, by controlling the extension length of the output end of the cylinder 6, the bending plate 5 is driven to rotate from the position flush with the bevel to the required bending angle of the steel plate 4. By comparing the scales pointed by the pointer before and after the rotation, the bending angle can be determined;

[0050] Then, the rounded corner of the steel plate 4 extending out of the wedge block 2 is bent by an externally installed hydraulic press;

[0051] At the same time, the installed positioning structure can not only realize the positioning of the wedge block 2, but also in the process of placing the steel plate 4, the bottom of the steel plate 4 can be abutted against the inclined surface of the clamping block 12, and the clamping block 12 can be pushed into the limit plate 11, so that the steel plate 4 slides down. When the steel plate 4 slides in completely, the clamping block 12 is reset by the compressed spring, and the bottom edge of the clamping block 12 is pressed against the steel plate 4, so as to clamp and fix the steel plate 4.

[0052] In this embodiment, the steel plate 4 can be fixed in various ways, such as Figure 2 As shown, when the steel plate 4 needs to be bent less than 90 degrees, the steel plate 4 can be clamped by installing two rectangular blocks 3 on the left side of the wedge block 2, and the bending angle of the steel plate 4 can be adjusted and determined by adjusting the bending angle of the wedge block 2 against the plate 5.

[0053] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A steel plate bending auxiliary device, characterized in that: A wedge-shaped block is included, wherein the wedge-shaped block is a right triangle, and the minimum internal angle of the wedge-shaped block is not greater than 30 degrees; The oblique side of the wedge block is provided with a bending plate that rotates around the corner where the minimum inner angle is located, and the diagonal side of the minimum inner angle on the wedge block is provided with a driving mechanism for driving the bending plate to rotate; The right-angled sides of the wedge block are all opened inwardly with positioning grooves with ends staggered with each other, and the positioning grooves are all slidably limited and connected with a number of positioning structures that can be respectively placed in the positioning holes, and the positioning structures include a positioning block connected to the positioning groove with a sliding limit and a positioning rod vertically limited and slidably connected in the positioning block, the thickness of the positioning block is equal to the thickness of the positioning groove, and the bottom end of the positioning rod is formed with a fixing rod that passes through the bottom of the positioning block and passes through the positioning hole, and a section of the bottom end of the fixing rod exposed from the positioning hole is opened with a first external thread groove and a nut is meshed with the first external thread groove.

2. The steel plate bending auxiliary device according to claim 1, characterized in that: The positioning block is at the same height as the wedge block, a T-shaped sliding block is provided on the inner side of the positioning block, and a T-shaped sliding groove for accommodating the T-shaped sliding block is provided in the positioning groove.

3. The steel plate bending auxiliary device according to claim 1, characterized in that: A pressing block for pressing against the steel plate is provided on one side of the positioning block away from the positioning groove.

4. The steel plate bending auxiliary device according to claim 3, characterized in that: The positioning rod is provided with an internal meshing hole with an internal thread groove from the top to the bottom. The positioning block is vertically provided with a first vertical slide groove on the side away from the positioning groove for the clamping block to slide vertically and passes through the positioning rod and connects with the internal meshing hole. The clamping block is vertically slidably connected in the vertical slide groove, and a lifting mechanism is threadedly connected in the internal meshing hole to drive the clamping block to move up and down.

5. The steel plate bending auxiliary device according to claim 4, characterized in that: The lifting mechanism includes a lifting shaft, lifting columns coaxially fixed to the outside of both ends of the lifting shaft, and a synchronous ring coaxially sleeved outside the lifting shaft between the lifting columns. The outer wall of the lifting column is provided with a second external thread groove which is threadedly connected to the inner meshing hole. A connecting piece for driving the clamping block to rise and fall synchronously is provided between the synchronous ring and the clamping block.

6. The steel plate bending auxiliary device according to claim 5, characterized in that: The connecting member includes limit plates fixedly connected to the upper and lower sides of the synchronous sleeve respectively, the inner end of the clamping block is slidably limited and connected between the limit plates on the upper and lower sides, and a compression spring is fixedly connected between the synchronous sleeve and the inner end of the clamping block.

7. A steel plate bending auxiliary device according to any one of claims 3 to 6, characterized in that: The abutting block is a right-angled triangle block, and the inclined surface of the right-angled triangle block is arranged upward.

8. The steel plate bending auxiliary device according to claim 1, characterized in that: The corner where the minimum inner angle of the wedge block is located is provided with a rounded corner for transition, and the wedge block is provided with a bending shaft coaxially connected to the rounded corner, a bending tube with the same diameter as the rounded corner is coaxially fixed outside the bending shaft, the bending abutment plate is fixed to the bending tube, and the outer wall of the bending abutment plate and the contact end of the bending tube are tangent to the outer wall of the bending tube.

9. The steel plate bending auxiliary device according to claim 8, characterized in that: The driving mechanism includes a cylinder fixedly connected to the diagonal side of the smallest inner angle of the wedge block, and a push block fixedly connected to the output end of the cylinder. The push block includes a linear push plate fixedly connected to the output end of the cylinder, and an inclined push plate fixedly connected to the end of the linear push plate close to the bending abutment plate and inclined toward the bending abutment plate. The end of the inclined push plate is slidably limitedly connected to the inner end surface of the bending abutment plate, and a chamber for the push block to move is opened in the wedge block.

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