Metal plate positioning and forming tool and using method thereof

Abstract

The invention relates to a metal plate positioning and forming tool which is mainly composed of a base body, a movable positioning block, a check block, a fixed column body, a rotating column body, a transition connecting block and the like. The base body is a plate with two concentric lug plates and a plurality of threaded holes; the positioning movable block is a long strip with a U-shaped groove and is fixed on the base body through a bolt; the stop blocks are cuboids with different lengths and can be used for positioning during part forming; the fixed column body is formed by processing round steel and is matched with the lug plate hole of the base body; the rotating column body is similar to the fixed column body and is matched with the transition connecting block; the transition connecting block is similar to a chain joint in shape, and two unthreaded holes are machined in the transition connecting block and used for installing the fixed column body and the rotating column body respectively. The mechanism is mainly used for bending and forming of sheet metal parts, positioning and layout of related structures are reasonable, the mechanism is suitable for forming and manufacturing of products, multiple times of bending of different shapes can be completed, and the part forming efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of manufacturing auxiliary tooling, and in particular relates to a sheet metal positioning bending and forming tooling and a use method thereof. Background Art

[0002] In the process of making some thin plates, materials are often bent and formed, especially in the production of sheet metal parts. However, for non-standard products, it is difficult to have a tool that can adapt to the production of all parts, and it is also difficult to buy such tooling on the market. In order to meet the production requirements of customers, tooling design must be carried out according to the actual needs of the drawings to improve production efficiency as much as possible. Summary of the invention

[0003] The purpose of the present invention is to provide a simple tooling that meets the actual processing needs in view of the defects of the prior art.

[0004] In order to achieve the above objectives, the present invention provides a sheet metal positioning and bending tool, comprising a rectangular base, a positioning mechanism arranged on the base and a rotating mechanism arranged on one side of the length direction of the base; the positioning mechanism is installed on the upper surface of the base through fasteners, and is composed of symmetrically arranged movable positioning blocks and at least one stop block, the movable positioning blocks are placed along the width direction of the base and can move back and forth along the width direction; the stop blocks are placed between the movable positioning blocks and are distributed perpendicular to each other in the same horizontal plane; the rotating mechanism comprises a fixed column and a rotating column, the fixed column is installed on the side of the base, the rotating column is arranged parallel to it through a connecting piece, and there is a gap between the two for placing the workpiece.

[0005] Furthermore, on the base, concentric ear plates are symmetrically fixed at the front and rear ends of the side of the fixed column, and the fixed column is installed in cooperation with the concentric ear plates so that the rotating mechanism is fastened to the base; a plurality of threaded holes are provided on the upper surface of the base, and bolts for fixing the movable positioning block are inserted into the threaded holes. The threaded holes are arranged in groups of two, symmetrically along the length direction of the base plate, and there are at least two groups. Appropriate threaded holes are selected according to the width of the workpiece to match workpieces of different sizes, and the movable positioning block is installed at one-third of the distance from the edge in the width direction of the base plate.

[0006] Furthermore, the movable positioning device is in the shape of an elongated strip, and a U-shaped groove is provided at the center along its length direction; under the condition of ensuring the wall thickness, the longer the length of the U-shaped groove is, the larger the range of its own movement is.

[0007] Furthermore, the number of the blocks is at least two, which are cuboids of different sizes fixed on the surface of the substrate by welding, and the length of the first block is greater than that of the second block.

[0008] Furthermore, the fixed column includes a column and step surfaces symmetrically arranged at both ends of the column. After the two ends of the column pass through the concentric ear plates, the step surfaces cooperate to fasten them to the base.

[0009] Furthermore, the rotating cylinder includes a shaft body, both ends of the shaft body are connected with extension sections, and the diameter of the extension sections is smaller than the diameter of the shaft body; the ends of the extension sections are provided with a second step surface for fixing the rotating body; and a handle for manual operation is welded and fixed in the middle position of the shaft body.

[0010] Furthermore, the connecting piece is a transition connecting block with a chain structure, and two light holes are symmetrically opened on the transition connecting block, which are respectively connected to the fixed column and the rotating column; the side of the transition connecting block connected to the fixed column is against the concentric ear plate.

[0011] A method for using a sheet metal positioning bending tool comprises the following steps: Step 1, insert the workpiece to be processed between the rotating cylinder and the fixed cylinder, and adjust the bolts according to the size of the workpiece to adjust the position of the movable positioning block so that the bottom of the workpiece abuts against the top of the movable positioning block; Step 2: Hold the handle and rotate the rotating cylinder. The workpiece is squeezed between the two cylinders and changes its shape through the movement of the rotating cylinder. At this time, the first bending is completed; Step 3, adjust the bolt again to move the movable positioning block along the width direction of the base until the top of the U-shaped groove of the movable positioning block is engaged with the bolt, and after folding the workpiece, it is stuck between the two blocks, and the top is abutted against the first block for positioning, and the handle is operated again. At this time, the rotating column is fixed and only rotated to complete the second bending; Step 4: Perform a third bend to complete the forming of the part.

[0012] The sheet metal bending tool of the present invention can form different parts multiple times, and can well realize the forming of sheet metal through the cooperation of the movable positioning block, the stopper and the rotating cylinder. Therefore, the tool can well solve the problem of part forming. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] Figure 2 It is a schematic diagram of the matrix structure in the present invention.

[0016] Figure 3 It is a schematic diagram of the structure of the movable positioning block in the present invention.

[0017] Figure 4 It is a schematic diagram of the fixed column structure of the present invention.

[0018] Figure 5 It is a schematic diagram of the rotating cylinder structure of the present invention.

[0019] Figure 6 It is a schematic diagram of the transition connection block of the present invention.

[0020] Figure 7 This is a schematic diagram of the first clamping of parts of the present invention.

[0021] Figure 8 It is a schematic diagram of the first bending of the parts of the present invention.

[0022] Fig. 9 It is a schematic diagram of the second bending of the parts of the present invention.

[0023] Fig.10 It is a schematic diagram of the third bending of the part of the present invention.

[0024] Fig.11 A part drawing made for tooling. DETAILED DESCRIPTION Example

[0026] like Figure 1 As shown, a sheet metal positioning bending tool comprises a base 1, a movable positioning block 2, a bolt 3, a stopper 4, a fixed column 5, a rotating column 6 and a transition connection block 7. The base 1 is equipped with a movable positioning block 2, a bolt 3, a stopper 4, and a fixed column 5, and the fixed column 5 is connected to the rotating column 6 through a transition connection block 7.

[0027] The base is a board with two concentric ear plates and a plurality of threaded holes; the threaded holes are arranged in groups of two, symmetrically along the length direction of the base plate, and the number of threaded holes is selected according to actual needs. In this embodiment, two groups of threaded holes are used, and the four screw holes in the length direction divide the board equally, accounting for about one-fifth of the length of the board; and one-third of the distance from the edge in the width direction of the base plate. The concentric ear plates are symmetrically arranged along one side of the length direction of the base, and are used to install and fix the column.

[0028] The positioning movable block is a long strip with a U-shaped groove, which is fixed to the base with bolts; in this example, since the bolts are M8, according to their specifications, the dimensions of the U-shaped groove are 100 mm in length and 10 mm in width.

[0029] Since the size of the workpiece changes after each molding, the movable positioning block must be replaced and the new position must be determined for repositioning during the next molding. Therefore, the number of blocks depends on the number of times the product needs to be molded. In this embodiment, there are two blocks, which are rectangular blocks of different lengths and can be used for positioning during part molding. The length of the block is based on not interfering with the parts. If it is too long, the parts cannot be placed in. If it is too short, the contact area is small and the positioning is inaccurate. Generally, it is not less than 50mm.

[0030] The fixed column and the rotating column are both made of round steel, and the fixed column cooperates with the concentric ear plates of the base; the fixed column includes a column and step surfaces symmetrically arranged at both ends of the column. When the two ends of the column pass through the concentric ear plates, they are fastened to the base through the step surfaces.

[0031] The rotating cylinder is similar to the fixed cylinder and cooperates with the transition connection block; the rotating cylinder includes a shaft body, and both ends of the shaft body are connected with extension sections, and the diameter of the extension sections is smaller than the diameter of the shaft body; the ends of the extension sections are provided with a second step surface for fixedly installing the rotating body; a handle for manual operation is welded and fixed in the middle position of the shaft body.

[0032] The shape of the transition connection block is similar to a chain joint, and two light holes are processed on it. The holes are used to install the fixed column and the rotating column respectively. The diameters of the two light holes can be consistent or inconsistent. In this embodiment, the hole diameters are consistent.

[0033] When using, Figures 7 to 10 As shown, a method for using a sheet metal positioning bending tool comprises the following steps: Step 1, insert the workpiece to be processed between the rotating cylinder and the fixed cylinder, and adjust the bolts according to the size of the workpiece to adjust the position of the movable positioning block so that the bottom of the workpiece abuts against the top of the movable positioning block; Step 2: Hold the handle and rotate the rotating cylinder. The workpiece is squeezed between the two cylinders and changes its shape through the movement of the rotating cylinder. At this time, the first bending is completed; Step 3, adjust the bolt again to move the movable positioning block along the width direction of the base until the top of the U-shaped groove of the movable positioning block is engaged with the bolt, and after folding the workpiece, it is stuck between the two blocks, and the top is abutted against the first block for positioning, and the handle is operated again. At this time, the rotating column is fixed and only rotated to complete the second bending; Step 4: Perform a third bend to complete the forming of the part.

[0034] In addition to the above embodiments, the present invention may also have other implementation modes. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the present invention.

Claims

1. A sheet metal positioning and forming tool, characterized in that: It includes a rectangular base, a positioning mechanism arranged on the base, and a rotating mechanism arranged along one side of the length direction of the base; The positioning mechanism is mounted on the upper surface of the base through fasteners, and is composed of symmetrically arranged movable positioning blocks and at least one stop block, wherein the movable positioning blocks are placed along the width direction of the base and can reciprocate along the width direction; the stop blocks are placed between the movable positioning blocks and are distributed perpendicularly to each other in the same horizontal plane; The rotating mechanism comprises a fixed column and a rotating column. The fixed column is installed on the side of the base, and the rotating column is arranged parallel to the fixed column through a connecting piece, and there is a gap between the fixed column and the rotating column for placing a workpiece.

2. A sheet metal positioning and forming tool according to claim 1, characterized in that: On the base, concentric ear plates are symmetrically fixed at the front and rear ends of the side of the fixed column, and the fixed column is installed in coordination with the concentric ear plates so that the rotating mechanism is fastened to the base; a plurality of threaded holes are opened on the upper surface of the base, and bolts for fixing the movable positioning blocks are inserted into the threaded holes.

3. The sheet metal positioning and forming tool according to claim 1, characterized in that: The threaded holes are arranged in groups of two, symmetrically along the length direction of the substrate, and there are at least two groups, one-third of the distance from the edge in the width direction of the substrate.

4. The sheet metal positioning and forming tool according to claim 1, characterized in that: The movable positioning block is in the shape of an elongated strip, and a U-shaped groove is provided at the center along the length direction thereof.

5. The sheet metal positioning and forming tool according to claim 1, characterized in that: There are at least two blocks, which are cuboids of different sizes fixed on the surface of the substrate by welding, and the length of the first block is greater than that of the second block.

6. The sheet metal positioning and forming tool according to claim 1, characterized in that: The fixed column comprises a column and step surfaces symmetrically arranged at both ends of the column. After the two ends of the column pass through the concentric ear plates, the step surfaces cooperate to fasten them to the base.

7. The sheet metal positioning and forming tool according to claim 1, characterized in that: The rotating cylinder includes a shaft body, and both ends of the shaft body are connected with extension sections, and the diameter of the extension sections is smaller than the diameter of the shaft body; the ends of the extension sections are each provided with a second step surface for fixing and installing the rotating body; a handle for manual operation is welded and fixed in the middle position of the shaft body.

8. The sheet metal positioning and forming tool according to claim 6, characterized in that: The connecting piece is a transition connecting block in a chain structure, and two light holes are symmetrically provided on the transition connecting block, which are respectively connected to the fixed column and the rotating column; the side of the transition connecting block connected to the fixed column is against the concentric ear plate.

9. A method for using the sheet metal positioning and forming tool as claimed in claim 1, characterized in that: The steps include: Step 1, insert the workpiece to be processed between the rotating cylinder and the fixed cylinder, and adjust the bolts according to the size of the workpiece to adjust the position of the movable positioning block so that the bottom of the workpiece abuts against the top of the movable positioning block; Step 2: Hold the handle and rotate the rotating cylinder. The workpiece is squeezed between the two cylinders and changes its shape through the movement of the rotating cylinder. At this time, the first bending is completed; Step 3, adjust the bolt again to move the movable positioning block along the width direction of the base until the top of the U-shaped groove of the movable positioning block is engaged with the bolt, and after folding the workpiece, it is stuck between the two blocks, and the top is abutted against the first block for positioning, and the handle is operated again. At this time, the rotating column is fixed and only rotated to complete the second bending; Step 4: Perform a third bend to complete the forming of the part.

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