Anti-warping mechanism of bending machine

Abstract

The utility model provides an anti-warping mechanism of a bending machine, and belongs to the technical field of metal plate processing. Comprising a workbench, a clamping assembly is arranged at the outer end of the workbench, a forming mold is arranged on the inner side of the upper end of the workbench, a bending machine body is arranged above the forming mold, and a metal plate is arranged below the bending machine body. According to the utility model, the butt joint rod is arranged, the two hold-down rods are combined, the fixing pin and the workbench are reinforced to form a frame structure, a metal plate passes through the lower part of the hold-down rods and is pushed to a proper position, the drag hook and the tension spring are buckled and mounted, and the hold-down rods are driven to press downwards through the acting force of the tension spring, so that the rubber pad is attached to the metal plate; and the metal plate at the front end enters the position below the limiting plate, the limiting plate is extruded to be downwards attached to the upper end of the metal plate under the elastic action of the compression spring, the effects of front limiting and two-way limiting are achieved, and the situation that the edge of the metal plate is warped when the metal plate is bent can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of metal plate processing, in particular to an anti-warping mechanism for a bending machine. Background Art

[0002] A bending machine is a machine that can bend thin plates. It is one of the important equipment for bending and forming thin plate parts in the sheet metal industry.

[0003] At present, when the existing bending machine bends the metal plate, the operator holds the tail side of the metal plate and extends the front end area to be bent under the bending machine mold to perform the bending work. Since the downward pressure of the bending machine is very large, the metal plate on the side held by the operator will be lifted up, which may injure the operator if not careful. Therefore, the metal plate needs to be limited.

[0004] For example, a bending machine with an anti-warping structure is disclosed in the Chinese utility model patent application disclosure specification CN219966088U. The anti-warping mechanism can prevent the edge of the plate from warping and bending, improve the bending effect, adjust the spacing of the pressing plates, and is suitable for fixing plates of different widths. The bending position of the plate can be automatically adjusted to reduce the labor. However, in actual use, the anti-warping mechanism is directly pressed down on the upper end of the plate surface for fixing, and the fixing method is very firm. When the plate is bent, under the action of its own stress, the unprocessed area will automatically shift to the bending area, which is easy to cause the pressing component to bear a large lateral force and easily deform after long-term use. In addition, the anti-warping mechanism can only be used to prevent the rear end of the plate from warping. When the middle part of the plate is bent, the front side will also warp, which has certain shortcomings. Secondly, the anti-warping mechanism has a complex structure and a high production cost. Therefore, the present application provides a bending machine anti-warping mechanism to meet the needs. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an anti-warping mechanism for a bending machine to solve the problem proposed in the above background technology that when the plate is bent, under the action of stress, the unprocessed area will automatically translate toward the bending area, which easily causes the pressing component to be subjected to a large lateral force and is prone to deformation after long-term use. In addition, the anti-warping structure has deficiencies in bidirectional warping and high production costs.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A bending machine anti-warping mechanism comprises a workbench, a clamping assembly is provided at the outer end of the workbench, a forming die is provided on the inner side of the upper end of the workbench, a bending machine body is provided above the forming die, a metal plate is provided below the bending machine body, a positioning assembly is provided at the rear side of the upper end of the clamping assembly, a pressing assembly is provided on the outer side of the front end of the clamping assembly, and a pulling assembly is provided below the front end of the workbench;

[0008] The pressing assembly includes a pressing rod, a fixing pin, a rubber pad, a docking rod and a draw hook. The left side of the outer end of the pressing rod is threadedly installed with a fixing pin, the front side of the lower end of the pressing rod is provided with a rubber pad, the right end of the pressing rod is provided with a docking rod, and the middle part of the lower end of the pressing rod is provided with a draw hook.

[0009] Optionally, the holding assembly includes a support block, a slot, a tension spring and an L-shaped angle iron. The front side of the upper end of the support block is provided with a slot, the inner side of the slot is embedded with a tension spring, and the rear end of the support block is provided with an L-shaped angle iron.

[0010] Optionally, the clamping assembly includes a left clamping plate, a right clamping plate, a connecting rod, a mounting hole and a reinforcement hole. A right clamping plate is provided on the right side of the left clamping plate, a connecting rod is provided on the rear sides of the upper ends of the left and right clamping plates, a mounting hole is opened on the inner side of the left end of the left clamping plate, and a reinforcement hole is opened on the rear side of the mounting hole.

[0011] Optionally, the positioning assembly includes an L-shaped plate, a limit plate, a positioning column and a compression spring, a limit plate is provided below the L-shaped plate, the upper end of the L-shaped plate is sleeved with a positioning column, and the outer side of the lower end of the positioning column is sleeved with a compression spring.

[0012] Optionally, there are two holding rods symmetrically distributed on the left and right, the left end thread of the docking rod extends to the inner side of the holding rod, and the front end of the fixing pin penetrates the lower end structure of the holding rod and extends to the inner side of the workbench.

[0013] Optionally, the support blocks are symmetrically distributed, the front sides of the upper ends of the support blocks are inclined surfaces, the tension springs are symmetrically distributed, a circular ring is welded to the upper ends of the tension springs, and the circular ring is interlocked with the holding assembly.

[0014] Optionally, the lower end of the tension spring extends to the inner side of the slot and is limited and fixed by a latch, and the L-shaped angle iron and the support block form an integrated structure.

[0015] Optionally, the left clamping plate and the right clamping plate are installed symmetrically and connected to each other by a connecting rod to form an integrated structure. The reinforcement holes are distributed symmetrically on the left and right, with three holes on each side.

[0016] Optionally, the rear side of the lower end of the L-shaped plate is inserted into the inner side of the clamping assembly, and the front side of the outer end of the limiting plate is bent upward to form an arc-shaped structure.

[0017] Optionally, the positioning column and the compression spring are symmetrically distributed, and the lower end of the positioning column passes through the inner side of the L-shaped plate and extends to the inner side of the upper end of the limiting plate.

[0018] Compared with the prior art, the utility model has at least the following beneficial effects:

[0019] In the above scheme, the two symmetrically distributed holding rods on the left and right are combined through the setting of the docking rod, and then reinforced with the fixing pins and the workbench to form a frame structure. After that, the metal sheet is passed through the bottom of the frame formed by the holding rods, and after being pushed to the appropriate position, the pull hook and the tension spring are buckled and installed. The force of the tension spring will drive the holding rod to press downward, so that the rubber pad is attached to the metal sheet to play the role of rear limiting. The front end metal sheet enters under the limit plate, and under the action of the elastic force of the compression spring, the limit plate is squeezed downward to fit the upper end of the metal sheet to perform front limiting. The role of the two-way limit can effectively reduce the warping of the metal sheet when it is bent.

[0020] By setting the tension spring and compression spring, when the metal plate is bent and a force is generated, the tension spring and compression spring will stretch out due to their own characteristics, reducing the downward pressure of the limit plate and the holding rod on the plate. The plate moves toward the bending point without warping, thereby improving the safety of the bending work.

[0021] A frame structure is formed by setting the left clamping plate, the right clamping plate and the connecting rod. The frame structure can be placed on a workbench and reinforced by screws. The positioning component and the holding component are subsequently installed. The entire installation structure is simple, low in cost, and suitable for wide application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present invention and, together with the description, further serve to explain the principles of the present invention and enable those skilled in the relevant art to make and use the present invention.

[0023] Figure 1 It is a schematic diagram of the side plane structure of the anti-warping mechanism of the bending machine;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the clamping assembly and positioning assembly of the anti-warping mechanism of the bending machine;

[0025] Figure 3 This is a schematic diagram of the planar structure of the anti-warping mechanism of the bending machine when viewed from above;

[0026] Figure 4 For attachment Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0027] Figure 5For attachment Figure 3 Schematic diagram of the local enlarged structure at point B in the middle.

[0028] [reference numerals]

[0029] 1. Workbench; 2. Clamping assembly; 3. Forming mold; 4. Bending machine body; 5. Metal sheet; 6. Positioning assembly; 7. Pressing assembly; 8. Pulling assembly; 201. Left clamping plate; 202. Right clamping plate; 203. Connecting rod; 204. Mounting hole; 205. Reinforcement hole; 601. L-shaped plate; 602. Limiting plate; 603. Positioning column; 604. Compression spring; 701. Pressing rod; 702. Fixing pin; 703. Rubber pad; 704. Docking rod; 705. Draw hook; 801. Support block; 802. Slot; 803. Tension spring; 804. L-shaped angle iron.

[0030] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0031] The following is a detailed description of a bending machine anti-warping mechanism provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0032] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0033] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0034] It is to be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0035] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0036] like Figure 1-Figure 5 As shown, the embodiment of the utility model provides an anti-warping mechanism for a bending machine, comprising a workbench 1, a clamping assembly 2 is provided at the outer end of the workbench 1, a forming mold 3 is provided on the inner side of the upper end of the workbench 1, a bending machine body 4 is provided above the forming mold 3, a metal plate 5 is provided below the bending machine body 4, a positioning assembly 6 is provided at the rear side of the upper end of the clamping assembly 2, a pressing assembly 7 is provided on the outer side of the front end of the clamping assembly 2, and a pulling assembly 8 is provided below the front end of the workbench 1;

[0037] The holding assembly 7 includes a holding rod 701, a fixing pin 702, a rubber pad 703, a docking rod 704 and a hook 705. There are two holding rods 701 symmetrically distributed on the left and right sides. The two holding rods 701 are combined through the docking rod 704 to form a whole. The left side of the outer end of the holding rod 701 is threadedly installed with a fixing pin 702. The front end of the fixing pin 702 penetrates the lower end structure of the holding rod 701 and extends to the inner side of the workbench 1. The front side of the lower end of the holding rod 701 is provided with a rubber pad 703, the right end of the holding rod 701 is provided with a docking rod 704, and the middle part of the lower end of the holding rod 701 is provided with a hook 705; the holding assembly 8 includes a support Block 801, slot 802, tension spring 803 and L-shaped angle iron 804, the support block 801 is symmetrically distributed, and the front side of the upper end of the support block 801 is an inclined surface, and a slot 802 is provided in the middle of the upper end of the inclined surface, and a tension spring 803 is embedded and installed on the inner side of the slot 802. The tension spring 803 is symmetrically distributed, and a circular ring is welded on the upper end of the tension spring 803, and the circular ring and the holding component 7 are interlocked. Secondly, the lower end of the tension spring 803 extends to the inner side of the slot 802 and is limited and fixed by a pin. The rear end of the support block 801 is provided with an L-shaped angle iron 804, and the L-shaped angle iron 804 and the support block 801 are an integrated structure.

[0038] The two symmetrically distributed holding rods 701 are combined by the provided docking rod 704, and the fixing pin 702 is passed through the lower end of the holding rod 701 to be threadedly fixed to the workbench 1 to form a frame structure. When the metal sheet 5 needs to be pressed, the metal sheet 5 is passed under the frame formed by the holding rod 701, and then pushed to a suitable position, and then connected by the hook 705 and the tension spring 803. Under the action of the tension spring 803 itself, the holding rod 701 will be driven to press downward, so that the rubber pad 703 is attached to the metal sheet 5 to play a limiting role. When the metal sheet 5 is bent and a forward force is generated, the tension spring 803 stretches out to reduce the downward pressure of the holding rod 701, and the metal sheet 5 moves forward without warping, thereby improving the safety of the bending work.

[0039] like Figure 1 and Figure 2As shown, the clamping assembly 2 includes a left clamping plate 201, a right clamping plate 202, a connecting rod 203, a mounting hole 204 and a reinforcement hole 205. The right clamping plate 202 is provided on the right side of the left clamping plate 201. The left clamping plate 201 and the right clamping plate 202 are symmetrically installed and connected to each other by the connecting rod 203 to form an integrated structure. The rear side of the upper end of the left clamping plate 201 and the right clamping plate 202 is provided with a connecting rod 203. The inner side of the left end of the left clamping plate 201 is provided with a mounting hole 204. The rear side of the mounting hole 204 is provided with a reinforcement hole 205. The reinforcement holes 205 are symmetrically distributed on the left and right sides, with one on each side. Three; the positioning component 6 includes an L-shaped plate 601, a limit plate 602, a positioning column 603 and a compression spring 604. The rear side of the lower end of the L-shaped plate 601 is inserted into the inner side of the clamping component 2. A limit plate 602 is provided under the L-shaped plate 601. The front side of the outer end of the limit plate 602 is bent upward to form an arc-shaped structure. The upper end of the L-shaped plate 601 is sleeved with a positioning column 603. The lower end of the positioning column 603 passes through the inner side of the L-shaped plate 601 and extends to the inner side of the upper end of the limit plate 602. The outer side of the lower end of the positioning column 603 is sleeved with a compression spring 604. The positioning column 603 and the compression spring 604 are symmetrically distributed.

[0040] By setting the left clamping plate 201, the right clamping plate 202 and the connecting rod 203, a frame structure is formed. The frame structure can be placed on the workbench 1 and reinforced by screws. The positioning component 6 and the holding component 7 are subsequently installed. The entire installation structure is simple, low in cost, and suitable for wide application.

[0041] By setting the L-shaped plate 601, a front end limiting structure is formed together with the frame structure composed of the left clamping plate 201, the right clamping plate 202 and the connecting rod 203 to limit the front end of the metal plate 5. In addition, due to the curved arc design of the front end of the limiting plate 602, it is more time-saving and labor-saving to allow the front end of the metal plate 5 to enter under the limiting plate 602. Afterwards, under the elastic force of the compression spring 604, the limiting plate 602 is squeezed downward to fit the upper end of the metal plate 5 to prevent it from warping when bending.

[0042] The working principle provided by the utility model is that the anti-warping mechanism of the bending machine combines the two symmetrically distributed holding rods on the left and right through the arranged docking rod, and then reinforces them with fixing pins and the workbench to form a frame structure, and then the metal sheet 5 is passed through the bottom of the frame formed by the holding rods, and after being pushed to a suitable position, the draw hook and the tension spring are buckled and installed, and the holding rod is driven to be pressed downward by the force of the tension spring, so that the rubber pad is attached to the metal sheet 5 to play a role of rear limit, and the front end metal sheet 5 enters under the limit plate, and under the action of the elastic force of the compression spring, the limit plate is squeezed downward to fit the upper end of the metal sheet 5 to perform front limit, and the role of two-way limit can effectively reduce the warping of the metal sheet 5 when it is bent.

[0043] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A bending machine anti-warping mechanism, characterized in that: It comprises a workbench, wherein a clamping assembly is provided at the outer end of the workbench, a forming mold is provided on the inner side of the upper end of the workbench, a bending machine body is provided above the forming mold, a metal plate is provided below the bending machine body, a positioning assembly is provided at the rear side of the upper end of the clamping assembly, a pressing assembly is provided on the outer side of the front end of the clamping assembly, and a pulling assembly is provided below the front end of the workbench; The pressing assembly includes a pressing rod, a fixing pin, a rubber pad, a docking rod and a draw hook. The left side of the outer end of the pressing rod is threadedly installed with a fixing pin, the front side of the lower end of the pressing rod is provided with a rubber pad, the right end of the pressing rod is provided with a docking rod, and the middle part of the lower end of the pressing rod is provided with a draw hook.

2. The anti-warping mechanism for a bending machine according to claim 1, characterized in that: The holding assembly includes a support block, a slot, a tension spring and an L-shaped angle iron. The front side of the upper end of the support block is provided with a slot, the inner side of the slot is embedded with a tension spring, and the rear end of the support block is provided with an L-shaped angle iron.

3. The anti-warping mechanism for a bending machine according to claim 1, characterized in that: The clamping assembly includes a left clamping plate, a right clamping plate, a connecting rod, a mounting hole and a reinforcement hole. The right clamping plate is provided on the right side of the left clamping plate, a connecting rod is provided on the rear sides of the upper ends of the left and right clamping plates, a mounting hole is opened on the inner side of the left end of the left clamping plate, and a reinforcement hole is opened on the rear side of the mounting hole.

4. The anti-warping mechanism for a bending machine according to claim 1, characterized in that: The positioning assembly includes an L-shaped plate, a limiting plate, a positioning column and a compression spring. A limiting plate is provided below the L-shaped plate. The upper end of the L-shaped plate is sleeved with a positioning column, and the outer side of the lower end of the positioning column is sleeved with a compression spring.

5. The anti-warping mechanism for a bending machine according to claim 1, characterized in that: There are two holding rods symmetrically distributed on the left and right sides, the left end thread of the docking rod extends to the inner side of the holding rod, and the front end of the fixing pin penetrates the lower end structure of the holding rod and extends to the inner side of the workbench.

6. The anti-warping mechanism for a bending machine according to claim 2, characterized in that: The support blocks are symmetrically distributed, the front sides of the upper ends of the support blocks are inclined surfaces, the tension springs are symmetrically distributed, and circular rings are welded to the upper ends of the tension springs, and the circular rings are buckled with the pressing assembly.

7. The anti-warping mechanism for a bending machine according to claim 2, characterized in that: The lower end of the tension spring extends to the inner side of the slot and is limited and fixed by a latch, and the L-shaped angle iron and the support block form an integrated structure.

8. The anti-warping mechanism for a bending machine according to claim 3, characterized in that: The left clamping plate and the right clamping plate are installed symmetrically and connected to each other by a connecting rod to form an integrated structure. The reinforcement holes are distributed symmetrically on the left and right, with three holes on each side.

9. The anti-warping mechanism for a bending machine according to claim 4, characterized in that: The rear side of the lower end of the L-shaped plate is inserted into the inner side of the clamping assembly, and the front side of the outer end of the limiting plate is bent upward to form an arc-shaped structure.

10. The anti-warping mechanism of a bending machine according to claim 4, characterized in that: The positioning column and the compression spring are symmetrically distributed, and the lower end of the positioning column passes through the inner side of the L-shaped plate and extends to the inner side of the upper end of the limiting plate.

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