Turning plate type bending machine

Abstract

The utility model discloses a turning plate type bending machine which comprises a platform support, a working platform is arranged on the top of the platform support, a plate can be placed on the working platform, a positioning assembly and a pressing plate assembly are arranged on the working platform, the plate can be limited, and scratches on the surface of the plate caused by displacement of the plate during bending are avoided; the pressing plate assembly comprises a folding knife and can position the position, needing to be bent, of the plate. The bending assembly is rotationally arranged on the working platform and provided with a plate turning cutter, the plate turning cutter is driven to rotate through the upward-turning bending assembly during bending, the plate turning cutter pushes a plate to rotate and abuts against the plate all the time, the plate rotates around the joint of the plate and the bending cutter, and therefore bending work is completed; in the bending process, the plate turning cutter makes contact with the plate all the time, compared with a traditional vertical stamping mode, the device can enable bending force to be exerted on the plate all the time, the plate is formed at a time, the device is matched with the positioning assembly and the plate pressing assembly, and the defects that the plate displaces, and the surface of the bent plate is free of folding cutter indentation, crack distortion and the like are overcome.

Description

Technical Field

[0001] The present disclosure relates to the technical field of bending machines, and more particularly to a flip - type bending machine. Background Art

[0002] The bending process of ordinary metal sheets is widely used and the technology is relatively mature. However, tungsten and molybdenum sheets are brittle materials and expensive, and usually need to be bent and deformed at very high temperatures. The traditional method is to use a vertical bending machine with different bending tools and lower dies to complete the bending and deformation processing. This method uses vertical stamping, resulting in tungsten and molybdenum sheets being impacted, so as to deform to fit the bending groove under the sheet. The disadvantages are that the sliding friction between the product and the lower die during bending causes surface scratches, folding knife indentations, inaccurate dimensions, high costs of tools and dies, and insufficient adaptability during the product proofing period, resulting in some angles being unable to be processed.

[0003] In the environment of product industrialization and market economy, customers not only require the practicality and quality of products, but also require beautiful appearance, short manufacturing cycle (short delivery time), and fast proofing production speed during the product development period, so as to quickly determine the product plan and quickly put it on the market.

[0004] Customers require that the surface of the bent metal sheet has no folding knife indentations (beautiful appearance), accurate dimensions, no cracks, twists and other defects. Especially for the bending of difficult - to - process sheets such as tungsten and molybdenum, it is more impossible to avoid these defects using traditional methods, which are the technical drawbacks.

[0005] Therefore, we propose a flip - type bending machine. Summary of the Invention

[0006] In view of the above - mentioned defects or deficiencies in the prior art, it is desirable to provide a flip - type bending machine.

[0007] In a first aspect, the present application provides a flip - type bending machine, comprising:

[0008] A platform support, on the top of which a working platform is provided for placing the sheet to be bent, and the sheet is positioned by a positioning component. The sheet has a first end that extends out of the working platform;

[0009] A pressing plate assembly, which is arranged on the working platform for pressing the sheet on the working platform, and a folding knife is provided on one side of the pressing plate assembly close to the first end;

[0010] A bending assembly, which is rotatably arranged on one side of the working platform close to the first end and has a flip - plate knife. By rotating the flip - plate knife, the first end is driven to rotate around the joint of the sheet and the folding knife to complete the bending of the sheet.

[0011] According to the technical solution provided by the embodiment of the present application, one end of the plate away from the first end is the second end. The positioning component includes a plurality of positioning holes opened at the top of the working platform. The positioning component further includes a positioning pin disposed in the positioning hole, and its top extends out of the positioning hole and is used to abut against the second end during bending to prevent the plate from shifting.

[0012] According to the technical solution provided by the embodiment of the present application, the pressing plate component includes a tool holder extending along the second direction, and its bottom contacts the plate to press the plate. The side wall of the tool holder close to the first end is the first side wall, and the folding knife is disposed on the first side wall;

[0013] The pressing plate component further includes a channel steel extending along the second direction. The channel steel is movably disposed on the top of the tool holder, and an elastic member is disposed between the channel steel and the tool holder.

[0014] According to the technical solution provided by the embodiment of the present application, first through holes are respectively opened through the two opposite side walls of the working platform in the second direction along the first direction. The tool holder is correspondingly provided with second through holes penetrating the first through holes, and the channel steel is correspondingly provided with third through holes penetrating the second through holes. The first through holes, the second through holes and the third through holes are coaxially arranged;

[0015] The pressing plate component further includes a guiding shaft penetrating the first through hole, the second through hole and the third through hole, and its two ends respectively extend to the bottom of the working platform and the top of the channel steel and are locked by locking members. The elastic member is sleeved on the outer wall of the guiding shaft.

[0016] According to the technical solution provided by the embodiment of the present application, the bending component includes a mounting plate. The mounting plates are fixedly disposed on the two opposite side walls of the working platform in the second direction. A rotating hole is opened through the mounting plate along the second direction, and a rotating shaft is rotatably disposed in the rotating hole. Fixing blocks are fixedly disposed at the ends of the two rotating shafts close to each other.

[0017] According to the technical solution provided by the embodiment of the present application, the bending component further includes a turning plate tool holder fixedly disposed on the fixing block. A handle is disposed on the turning plate tool holder for driving the turning plate tool holder to rotate around the axis of the rotating shaft. A turning plate knife is disposed on the side wall of the turning plate tool holder close to the plate, and the plate is bent by the rotation of the turning plate tool holder.

[0018] According to the technical solution provided by the embodiment of the present application, counterweight components are disposed at the ends of the two rotating shafts away from each other and rotate around the axis of the rotating shaft with the bending component.

[0019] According to the technical solution provided by the embodiment of the present application, it further includes a scale component. The mounting plate has an arc portion, and the scale component includes scales, and the scales are arranged on the arc portion;

[0020] The scale component further includes a pointer, and the pointer is arranged on the mounting block for indicating the flipping angle.

[0021] In summary, the present technical solution specifically discloses a flip - type bending machine, including a platform bracket, on the top of which a working platform is arranged. A plate can be placed on the top of the working platform, and a positioning component is arranged on the working platform to position the plate; a pressing plate component is arranged on the working platform for pressing the plate, and it can cooperate with the positioning component to limit the plate, avoiding displacement of the plate during bending, which may cause scratches on the surface of the plate; the pressing plate component includes a folding knife, and when contacting the plate, it can position the position where the plate needs to be bent; the bending component is rotatably arranged on the working platform and has a turning plate knife. During bending, the turning plate knife is driven to rotate by turning up the bending component. The turning plate knife pushes the plate to rotate, and the turning plate knife always abuts against the plate, and the plate rotates around the connection with the folding knife, thereby completing the bending work;

[0022] During the bending process of this device, the turning plate knife always contacts the plate. Compared with the traditional vertical stamping method, this device can always apply the bending force on the plate, enabling the plate to be formed at one time, and cooperating with the positioning component and the pressing plate component to avoid displacement of the plate. After bending, there are no indentations of the folding knife, cracks, twists and other defects on the surface of the plate. Description of the Drawings

[0023] By reading the detailed description of the non - restrictive embodiments with reference to the following drawings, other features, purposes and advantages of the present application will become more obvious:

[0024] Figure 1 It is a top view of a flip - type bending machine.

[0025] Figure 2 It is a front view of a flip - type bending machine.

[0026] Figure 3 It is a side view of a flip - type bending machine.

[0027] Figure 4 It is Figure 3 The enlarged view at position A in

[0028] Reference numerals in the figure: 1, platform bracket; 2, working platform; 3, plate; 4, folding knife; 5, turning plate knife; 6, positioning hole; 7, knife seat; 8, channel steel; 9, elastic member; 10, guide shaft; 11, locking member; 12, mounting plate; 13, rotating shaft; 14, mounting block; 15, handle; 16, arc portion; 17, turning plate knife seat; 18, pointer; 19, counterweight rod; 20, counterweight block; 21, limiting member. Detailed implementation manners

[0029] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related invention, rather than limiting the invention. Additionally, it should be noted that for the convenience of description, only the parts related to the invention are shown in the accompanying drawings.

[0030] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0031] Embodiment 1

[0032] Please refer to Figures 1 to 4 As shown, a flap type bending machine includes a platform bracket 1, and a working platform 2 is arranged at the top of the platform bracket 1. Optionally, it is connected by bolts. The working platform 2 can be selected as a rectangle, and its length direction extends along the second direction. The top of the working platform 2 is used for placing a plate 3. The two ends of the plate 3 in the third direction are respectively a first end and a second end. When placing the plate 3, the first end extends out of the working platform 2; the second direction is Figure 1 the horizontal direction in Figure 1 the figure, and the third direction is

[0033] the vertical direction in the figure, and the second direction is perpendicular to the third direction.

[0034] Specifically, the positioning assembly includes a plurality of positioning holes 6. The plurality of positioning holes 6 are opened at the top of the working platform 2. The plurality of positioning holes 6 are arranged in multiple groups along the third direction, and each group of positioning holes 6 is evenly arranged along the second direction;

[0035] Furthermore, the positioning assembly further includes a positioning pin. The positioning pin is arranged in the positioning hole 6, and the top of the positioning pin extends above the positioning hole 6. When placing the plate 3 on the top of the working platform 2, the second end abuts against the positioning pin to avoid displacement of the plate;

[0036] Furthermore, by respectively inserting the positioning pins into different groups of positioning holes 6, the position where the plate 3 needs to be bent can be positioned according to the bending requirements.

[0037] A pressing plate assembly is arranged on the working platform 2 and is used to press the plate 3 against the working platform 2.

[0038] Specifically, the pressing plate assembly includes a tool holder 7, which extends along the second direction. The bottom of the tool holder 7 is used to contact the top of the plate 3 and can press the plate 3. One end of the tool holder 7 close to the first end is the first side wall, and the side wall of the tool holder 7 away from the first side wall is the second side wall. A folding knife 4 is arranged on the first side wall, and mounting holes are evenly arranged on the tool holder 7 along the second direction, and the mounting holes penetrate through the tool holder 7 along the third direction. Corresponding mounting holes are arranged on the side wall of the folding knife 4 close to the tool holder 7. The mounting piece penetrates through the mounting hole of the tool holder 7 and extends into the mounting hole of the folding knife 4, so that the folding knife 4 can be mounted on the tool holder 7. Optionally, the mounting piece is a bolt.

[0039] By pressing the plate 3 with the tool holder 7, which cooperates with the positioning pin, the plate 3 can be limited, avoiding scratches on the surface of the plate 3 caused by the offset of the plate 3 during bending. And the folding knife 4 contacts the plate, and the position where the plate 3 contacts the folding knife 4 is the bending position.

[0040] Furthermore, the pressing plate assembly further includes a channel steel 8, which extends along the second direction. The channel steel 8 is in an inverted "U" shape structure, and it has a first connecting plate and two parallel second connecting plates. The channel steel 8 is movably arranged on the top of the tool holder 7. First through holes are penetrated along the first direction at both ends of the working platform 2 in the second direction. Second through holes are correspondingly penetrated through the tool holder 7 at both ends in the second direction. Third through holes are penetrated through the first connecting plate at both ends in the second direction corresponding to the second through holes. The first through hole, the second through hole and the third through hole are coaxially arranged.

[0041] Furthermore, the pressing plate assembly further includes a guide shaft 10, which extends along the first direction. The guide shaft 10 penetrates through the first through hole, the second through hole and the third through hole, and its two ends respectively extend to the bottom of the working platform 2 and the top of the channel steel 8, and are both locked by locking pieces 11. An elastic member 9 is sleeved on the outer wall of the guide shaft 10 and is located inside the channel steel 8. The two ends of the elastic member 9 respectively abut against the top of the tool holder 7 and the bottom of the first connecting plate.

[0042] Among them, the first direction is Figure 3 the vertical direction, the first direction is perpendicular to the second direction and perpendicular to the third direction; the locking piece 11 can be a nut. Correspondingly, threads are arranged on the outer walls of both ends of the guide shaft 10; the elastic member 9 can be selected as a spring.

[0043] By screwing the locking piece 11, under the force of the thread engagement, a force is applied to the channel steel 8, so that the channel steel 8 approaches the tool holder 7 and compresses the elastic member 9. The elastic member 9 generates an elastic force. Under the force of the two locking pieces 11 being locked and the elastic force of the elastic member 9, the tool holder 7 can abut against the plate 3, so that the plate 3 can be pressed.

[0044] It should be noted that a gasket is provided at the locking member 11 to increase the pre-tightening force;

[0045] Furthermore, a limiting hole is formed in the side wall of the working platform 2 near the first end along the third direction. The limiting hole communicates with the first through hole, and a limiting groove is formed on the outer wall of the guiding shaft 10. The limiting member 21 penetrates through the limiting hole and extends into the limiting groove, so as to limit the guiding shaft 10 and prevent the guiding shaft 10 from rotating or the like.

[0046] Bending assembly, the bending assembly is rotatably arranged on the working platform 2 and has a turning plate knife 5. By turning up the bending assembly, the turning plate knife 5 always abuts against the bottom of the first end of the plate 3 and drives the first end to rotate around the connection between the plate 3 and the folding knife 4 to complete the bending work;

[0047] Specifically, the bending assembly includes a mounting plate 12. Mounting plates 12 are fixedly arranged on the two opposite side walls of the working platform 2 in the second direction. Optionally, they are connected by bolts and gaskets; the mounting plate 12 has a mounting portion and an arc portion 16. The mounting portion is fixedly connected to the working platform 2, and the arc portion 16 extends outside the working platform 2. A rotating hole is formed through the arc portion 16 along the second direction. The two rotating holes are coaxial, and a rotating shaft 13 is movably arranged in the rotating holes. Fixing blocks 14 are fixedly arranged at the ends of the two rotating shafts 13 close to each other, and a turning plate knife seat 17 is fixedly arranged on the fixing block 14. Therefore, the turning plate knife seat 17 can rotate around the axis of the rotating shaft 13;

[0048] Furthermore, handles 15 are arranged at both ends of the turning plate knife seat 17 for driving the turning plate knife seat 17 to rotate. A turning plate knife 5 is arranged on the side wall of the turning plate knife seat 17 close to the plate 3, and the turning plate knife 5 contacts the plate 3;

[0049] In the initial state, the plate 3 is located on the top of the working platform 2, and the first end of the plate 3 extends outside the working platform 2. At this time, the turning plate knife seat 17 and the turning plate knife 5 are both located below the plate 3, and the length direction of the handle 15 is perpendicular to the plate 3. By turning up the handle 15, the turning plate knife seat 17, the turning plate knife 5 and the mounting block 14 are driven to rotate around the axis of the rotating shaft 13. The turning plate knife 5 always abuts against the plate 3, and under the action of the folding knife 4, the plate 3 is bent.

[0050] Scale component, the scale component includes a scale and a pointer 18. The scale is arranged on the arc portion 16, and the pointer 18 is arranged on the mounting block 14. In the initial state, the pointer 18 indicates the zero scale line. By turning up the bending assembly, the handle 15 drives the turning plate knife seat 17, the turning plate knife 5 and the mounting block 14 to rotate around the axis of the rotating shaft 13, and the pointer 18 moves along the scale to indicate the turning angle of the turning plate knife 5, so as to indicate the bending angle of the plate 3 and achieve the purpose of accurate bending;

[0051] It should be noted that by installing turning knives 5 of different specifications on the turning knife seat 17, sheets 3 of different shapes can be bent, and bending operations with different requirements can be adapted.

[0052] Counterweight assembly, the counterweight assembly includes a counterweight rod 19. Counterweight rods 19 are provided at the ends of the two rotating shafts 13 away from each other. Optionally, they are connected by bolts and gaskets, and the counterweight rod 19 is always parallel to the handle 15;

[0053] In the initial state, the counterweight rod 19 is perpendicular to the sheet 3. A counterweight block 20 is provided at the top of the counterweight rod 19. Optionally, the counterweight block 20 can adjust its position on the counterweight rod 19 through nuts and replace different counterweight blocks 20 to balance the bending force during the bending operation, making the bending work more labor-saving.

[0054] Working principle: Place the sheet 3 on the top of the working platform 2. Install the positioning pins according to the required bending position so that the second end of the sheet 3 abuts against the positioning pins. Then, by turning the locking member 11, the channel steel 8 is moved closer to the knife seat 7, and the elastic member 9 is compressed, so that the knife seat 7 abuts against the sheet 3 to achieve clamping of the sheet 3, thereby being able to limit the sheet 3 and avoid surface scratches caused by the displacement of the sheet during the bending operation, which affects the appearance. And the position where one end of the folding knife 4 is located is the position where the sheet 3 needs to be bent;

[0055] Then, hold the handle 15 and turn it upward to drive the turning knife seat 17 and the turning knife 5 to rotate around the axis of the rotating shaft 13. During the bending process, the turning knife 5 always abuts against the sheet 3 and continuously applies a bending force to the sheet 3. Through the indication of the pointer 18, the required angle for bending the sheet 3 is completed. The bending is accurate, and since the turning knife 5 always abuts against the sheet 3, the bending shape can be natural and beautiful, and the bending work can be formed in one time, which can meet the bending requirements of multiple angles and multiple shapes.

[0056] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A flap bending machine, characterized in that: include: A platform support (1), wherein a working platform (2) is arranged on the top of the platform support (1) for placing a plate (3) to be bent, and positioning the plate (3) by means of a positioning component, wherein the plate (3) has a first end extending out of the working platform (2); A pressing plate assembly, the pressing plate assembly being arranged on the working platform (2) and used for pressing the plate (3) onto the working platform (2), and a folding knife (4) is provided on a side of the pressing plate assembly close to the first end; A bending assembly is rotatably arranged on one side of the working platform (2) close to the first end, and has a flap knife (5). By rotating the flap knife (5), the first end is driven to rotate around the connection between the plate (3) and the folding knife (4) to complete the bending of the plate (3).

2. A plate bending machine according to claim 1, characterized in that: The end of the plate (3) away from the first end is the second end. The positioning assembly includes a plurality of positioning holes (6). The plurality of positioning holes (6) are opened on the top of the working platform (2). The positioning assembly also includes a positioning pin. The positioning pin is arranged in the positioning hole (6), and the top of the positioning pin extends out of the positioning hole (6). The positioning pin is used to abut the second end during bending to prevent the plate (3) from displacement.

3. A plate bending machine according to claim 1, characterized in that: The pressing plate assembly comprises a knife seat (7) extending along the second direction, the bottom of which contacts the plate (3) for pressing the plate (3), the side wall of the knife seat (7) close to the first end being a first side wall, and the folding knife (4) is arranged on the first side wall; The pressure plate assembly also includes a channel steel (8) extending along the second direction. The channel steel (8) is movably arranged on the top of the knife seat (7), and an elastic member (9) is arranged between the channel steel (8) and the knife seat (7).

4. A plate bending machine according to claim 3, characterized in that: The working platform (2) has first through holes extending through the first direction at both ends of the second direction, the knife seat (7) has a second through hole extending through the first through hole corresponding to the first through hole, the channel steel (8) has a third through hole extending through the second through hole corresponding to the second through hole, and the first through hole, the second through hole and the third through hole are coaxially arranged; The pressure plate assembly also includes a guide shaft (10), the guide shaft (10) passes through the first through hole, the second through hole and the third through hole, and its two ends respectively extend to the bottom of the working platform (2) and the top of the channel steel (8), and are both locked by a locking member (11), and the elastic member (9) is sleeved on the outer wall of the guide shaft (10).

5. The plate bending machine according to claim 3, characterized in that: The bending assembly comprises a mounting plate (12), the mounting plate (12) being fixedly arranged on two opposite side walls of the working platform (2) in the second direction, a rotating hole being penetrated through the mounting plate (12) along the second direction, a rotating shaft (13) being rotatably arranged in the rotating hole, and a mounting block (14) being fixedly arranged at the adjacent ends of the two rotating shafts (13).

6. A plate bending machine according to claim 5, characterized in that: The bending assembly also includes a flap knife seat (17), which is fixedly arranged on the mounting block (14). A handle (15) is arranged on the flap knife seat (17) for driving the flap knife seat (17) to rotate around the axis of the rotating shaft (13). The flap knife (5) is arranged on the side wall of the flap knife seat (17) close to the plate (3), and the plate (3) is bent by rotating the flap knife seat (17).

7. A plate bending machine according to claim 5, characterized in that: A counterweight assembly is provided at one end of the two rotating shafts (13) that is away from each other, and the counterweight assembly rotates around the axis of the rotating shaft (13) along with the bending assembly.

8. The plate bending machine according to claim 5, characterized in that: It also includes a ruler assembly, the mounting plate (12) having an arc-shaped portion (16), the ruler assembly including scales, and the scales are arranged on the arc-shaped portion (16); The scale assembly also includes a pointer (18), which is arranged on the mounting block (14) and is used to indicate a flip angle.

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