Rapid forming bending cutter

Abstract

The utility model discloses a rapid forming bending cutter, which belongs to the technical field of sheet metal processing, solves the problem that scratches are easy to generate when sheet metal is bent in the prior art, and comprises a lower die cutter and an upper die cutter, a bending groove is formed in the lower die cutter, a guide component is further arranged on the lower die cutter, and the upper die cutter is connected with the lower die cutter. The guide assembly comprises a rotating roller, a connecting rod and a limiting rod, friction between the sheet metal part and the lower die cutter is avoided through the rotating roller, in addition, the rotating roller is connected with the connecting rod, the connecting rod is rotationally installed on the lower die cutter, the limiting rod is installed on the connecting rod, a sliding block is assembled at the tail end of the limiting rod, and a fixing groove is formed in the lower die cutter. The sliding block is installed in the fixing groove in a sliding mode, the sheet metal part is attached to the side wall of the bending groove when bent due to the stopping state of the sliding block after sliding in the fixing groove, the bending tool further comprises an adjusting assembly, the adjusting assembly is used for adjusting the stroke distance of the sliding block, and therefore the bending angle of the sheet metal part can be adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of sheet metal processing, and specifically relates to a rapid prototyping bending tool. Background Art

[0002] In the processing and production of construction machinery, the bending process is a device for bending sheet metal so that the sheet metal forms the required shape. The bending device generally includes a lower die tool and an upper die tool. A forming groove is provided on the lower die tool. After the upper die tool presses down into the forming groove, the sheet metal part on the lower die tool can be bent to form the required shape.

[0003] In the prior art, there are various types of bending tools. For example, Chinese invention patent CN102489605A discloses a combined bending die, including an upper die, a lower die and a movable module. There is a V-shaped bending groove in the middle of the lower die, and the middle part of the upper die corresponding to the V-shaped bending groove is a V-shaped punch. By the V-shaped punch entering the V-shaped bending groove, the sheet metal part on the surface of the lower die can be bent to form a V-shaped shape, so as to meet the bending requirements.

[0004] Although the above-mentioned tool can bend the sheet metal part, during the bending process, since the sheet metal part is located on the surface of the lower die, after the punch enters the bending groove, it drives the sheet metal part to slide on the surface of the lower die, and the connection part between the bending groove and the surface of the lower die is relatively sharp. When the sheet metal part slides on the surface of the lower die, it is easy to cause scratches, resulting in poor quality of the bent sheet metal part. Therefore, the utility model provides a rapid prototyping bending tool to avoid this problem. Summary of the Utility Model

[0005] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and title of the description of this application, to avoid obscuring the purpose of this part, the abstract of the description and the title of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In order to solve the problem of scratches on the surface of the sheet metal part caused by bending in the prior art, the utility model adopts the following technical solutions.

[0007] A rapid prototyping bending tool, comprising a lower die tool and an upper die tool. A bending groove is provided on the surface of the lower die tool, and a punch is provided on the upper die tool. When the punch enters the bending groove on the surface of the lower die tool, a sheet metal part can be bent. A guiding component is further provided on the lower die tool. The guiding component includes a rotating roller, and the rotating roller is rotatably connected to a connecting rod. The connecting rod is rotatably installed on the lower die tool. After the sheet metal part enters the bending groove, it can drive the rotating roller and the connecting rod to rotate. The end state of the connecting rod driving the rotating roller to rotate is that the surface of the rotating roller facing the bending groove is tangent to the side wall plane of the bending groove.

[0008] Preferably, a limiting rod is rotatably installed on the connecting rod. The end of the limiting rod is rotatably connected to a sliding block, and the sliding block is slidably assembled on the lower die tool. During the rotation of the connecting rod, the sliding block is driven to slide on the lower die tool through the limiting rod.

[0009] Preferably, a fixing groove is formed on the side wall of the lower die tool, and a telescopic spring is installed in the fixing groove. The end of the telescopic spring is connected to the sliding block, and the sliding block is slidably assembled in the fixing groove. After the sliding block stops sliding in the fixing groove, the surface of the rotating roller facing the bending groove is tangent to the side wall plane of the bending groove.

[0010] Preferably, an adjusting component is further provided in the fixing groove. The adjusting component is used to adjust the stroke distance of the sliding block sliding in the fixing groove.

[0011] Preferably, the adjusting component includes a threaded rod and a butting plate. The butting plate is slidably assembled in the fixing groove, and the threaded rod passes through the lower die tool and is threadedly assembled with the lower die tool. By rotating the threaded rod, the butting plate can be driven to slide in the fixing groove.

[0012] Preferably, after the sliding block slides in the fixing groove and abuts against the butting plate, the sliding block stops sliding. When the sliding block stops sliding, the surface of the rotating roller facing the bending groove is tangent to the side wall plane of the bending groove.

[0013] On the other hand, the present utility model also provides a technical solution for the case where the angle formed by bending a sheet metal part is lower than the angle of the bending groove, which is as follows.

[0014] A rapid prototyping bending tool, comprising a lower die tool and an upper die tool. A bending groove is provided on the surface of the lower die tool, and a punch is provided on the upper die tool. When the punch enters the bending groove on the surface of the lower die tool, a sheet metal part can be bent. A guiding component is further provided on the lower die tool. The guiding component includes a rotating roller, and the rotating roller is rotatably connected to a connecting rod. The connecting rod is rotatably installed on the lower die tool. After the sheet metal part enters the bending groove, it can drive the rotating roller and the connecting rod to rotate. A limiting rod is rotatably installed on the connecting rod, and a sliding block is rotatably installed at the end of the limiting rod. The sliding block is slidably assembled on the lower die tool and is limited by an adjusting component so that the angle formed after the sheet metal part is bent is different from the angle of the bending groove.

[0015] Preferably, a fixing groove is formed on the side wall of the lower die tool, a telescopic spring is installed in the fixing groove, and the end of the telescopic spring is connected to the sliding block. The sliding block is slidably assembled in the fixing groove and is limited by the adjusting component.

[0016] Preferably, the adjusting component includes a threaded rod and an abutting plate. The abutting plate is slidably assembled in the fixing groove, and the threaded rod passes through the lower die tool and is threadedly assembled with the lower die tool. By rotating the threaded rod, the abutting plate can be driven to slide in the fixing groove. When the sliding block abuts against the abutting plate, it stops sliding.

[0017] Preferably, the bending angle of the sheet metal part is smaller than the angle of the bending groove after the abutting plate limits the sliding block.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] (1) The bending tool in the present utility model includes a lower die tool and an upper die tool. A bending groove is formed on the lower die tool. After the punch of the upper die tool enters the bending groove, the sheet metal part can be bent. A guiding component is further provided on the lower die tool. The guiding component includes a rotating roller, a connecting rod and a limiting rod. The rotating roller is located on both sides of the bending groove, and the rotating roller is rotatably connected to the connecting rod. The connecting rod is rotatably installed on the lower die tool. A fixing groove is formed on the lower die tool, and a sliding block is slidably installed in the fixing groove. The limiting rod is rotatably installed on the connecting rod, and the end of the limiting rod is rotatably connected to the sliding block. When the bending part enters the bending groove, the rotating roller drives the connecting rod to rotate. The connecting rod drives the sliding block to slide in the fixing groove through the limiting rod. When the sliding block stops sliding, the rotating roller is tangent to the side wall plane of the bending groove, so that the sheet metal part is consistent with the shape of the bending groove when being bent. In addition, through the setting of the guiding component, the friction between the sheet metal part and the lower die tool is avoided, and the problem of scratches is avoided, ensuring the bending effect of the sheet metal part.

[0020] (2) The bending tool in the present utility model further includes an adjusting component. The adjusting component includes an abutting plate and a threaded rod. The abutting plate is slidably assembled in the fixing groove of the lower die tool, and the abutting plate can be driven to move in the fixing groove through the threaded rod, so as to adjust the stroke distance of the sliding block. The abutting plate limits the sliding block, and thus can limit the rotating roller. Therefore, through the adjustment of the adjusting component, the distance between the rotating rollers can be adjusted, so that the operator can adjust the position of the relative rotating rollers according to needs, and then the sheet metal part can be bent into the required shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the rapid prototyping bending tool in the present utility model;

[0022] Figure 2 is Figure 1 the front view of

[0023] Figure 3 is a schematic structural diagram of the lower die tool assembling the guiding component in the present utility model;

[0024] Figure 4 is a schematic structural diagram of the lower die tool in the present utility model;

[0025] Figure 5 is a schematic structural diagram of the rapid prototyping bending tool assembling the adjusting component in the present invention;

[0026] Figure 6 is Figure 5 the schematic structural diagram of the lower die tool in

[0027] Figure 7 is Figure 6 the front view of

[0028] Figure 8 is Figure 7 the enlarged view of the structure at A in

[0029] The corresponding relationship between the labels of each component in the figure and the component names is as follows:

[0030] 100, lower die tool; 200, upper die tool; 300, guiding component; 400, adjusting component;

[0031] 101, fixing groove; 102, telescopic spring; 103, sliding block;

[0032] 100a, bending groove;

[0033] 301, rotating roller; 302, connecting rod; 303, limiting rod;

[0034] 401, abutting plate; 402, threaded rod. Detailed implementation manners

[0035] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific implementation manners of the present utility model will be given in conjunction with the accompanying drawings of the specification.

[0036] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0037] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present utility model. The "in one embodiment" that appears in different places in this specification does not all refer to the same embodiment, nor is it an embodiment that is separate or selectively mutually exclusive with other embodiments. The present utility model provides the following embodiments.

[0038] As Figure 1 and Figure 2 shown, it is a schematic structural diagram of a rapid prototyping bending tool in this embodiment. The bending tool in this embodiment includes a lower die tool 100 and an upper die tool 200. A bending groove 100a is provided on the lower die tool 100, and a punch is provided below the upper die tool 200. After the punch enters the bending groove 100a, the sheet metal part on the surface of the lower die tool 100 can be bent, so that the sheet metal part forms the required shape.

[0039] It should be noted that the shape of the bending groove 100a on the lower die tool 100 in this embodiment can be adjusted and set according to actual needs. The operator can open a bending groove 100a with the required shape on the surface of the lower die tool 100 according to the shape of the required sheet metal part, so that the lower die tool 100 and the upper die tool 200 cooperate with each other to bend the sheet metal part into the required shape.

[0040] As Figure 3 and Figure 4 shown, in this embodiment, in order to avoid the problem of scratches caused by the sliding of the bent part on the surface of the lower die tool 100, a guiding component 300 is provided on the lower die tool 100 in this embodiment. The guiding component 300 guides during the bending process of the sheet metal part, thereby avoiding scratches caused by the sliding of the sheet metal part on the surface of the lower die tool 100.

[0041] As Figure 3As shown in the figure, the guiding component 300 in this embodiment includes rotating rollers 301 symmetrically arranged on both sides of the bending groove 100a. A connecting rod 302 is connected to the rotating roller 301, and the connecting rod 302 is assembled on the side wall of the lower die cutter 100. In this embodiment, after the sheet metal part is placed on the lower die cutter 100, the sheet metal part is located on the rotating roller 301. When the upper die cutter 200 moves downward, it drives the sheet metal part into the bending groove 100a for bending. When the sheet metal part enters the bending groove 100a, the rotating roller 301 rotates to guide the sheet metal part into the bending groove 100a, thus avoiding the generation of scratches caused by the sliding of the sheet metal part on the surface of the lower die cutter 100.

[0042] It should be noted that in this embodiment, the rotating roller 301 is located above the lower die cutter 100. After the sheet metal part enters the bending groove 100a, due to the blocking of the rotating roller 301, the sheet metal part cannot fit on the inner wall of the bending groove 100a, resulting in the bending of the sheet metal part not being able to form the shape of the bending groove 100a. To solve this problem, the rotating roller 301 in this embodiment is rotatably arranged on the lower die cutter 100. In this embodiment, the rotating roller 301 is rotatably installed on the connecting rod 302, and the end of the connecting rod 302 is rotatably installed on the side wall of the lower die cutter 100. When the sheet metal part enters the bending groove 100a, the sheet metal part moves downward to push the rotating roller 301 and the connecting rod 302 to rotate, so that the distance between the rotating rollers 301 changes, facilitating the sheet metal part to abut against the side wall of the bending groove 100a after entering the bending groove 100a, and enabling the bending of the sheet metal part to form a shape consistent with the bending groove 100a.

[0043] In addition, it should be noted that when the rotating roller 301 and the connecting rod 302 rotate excessively, it is easy for the rotating roller 301 to rotate onto the surface of the lower die cutter 100, thus unable to guide the sheet metal part. To solve this problem, the guiding component 300 in this embodiment further includes a limiting rod 303, which limits the rotation of the connecting rod 302. In this embodiment, one end of the limiting rod 303 is rotatably installed on the connecting rod 302, and the other end is slidably assembled on the lower die cutter 100. When the connecting rod 302 rotates, the limiting rod 303 slides on the lower die cutter 100. On the one hand, it facilitates the rotation of the connecting rod 302, and on the other hand, when the limiting rod 303 slides to the end, it can also limit the connecting rod 302 to prevent further rotation of the connecting rod 302.

[0044] It should be noted that when the limiting rod 303 in this embodiment slides to the end, the rotating roller 301 is located above the lower die cutter 100, and the side wall plane of the bending groove 100a is tangent to the surface of the rotating roller 301 facing the bending groove 100a. As a result, when the sheet metal part is bent, it can adhere to the side wall of the bending groove 100a, so that the bent part forms a shape consistent with the bending groove 100a.

[0045] As Figure 4 shown, in this embodiment, a fixing groove 101 is formed on the side wall of the lower die cutter 100. A sliding block 103 is slidably assembled in the fixing groove 101, and a telescopic spring 102 is connected to the sliding block 103. The other end of the telescopic spring 102 is installed in the fixing groove 101. In this embodiment, one end of the limiting rod 303 is rotatably installed on the connecting rod 302, and the other end is rotatably connected to the sliding block 103. When the connecting rod 302 rotates, it pushes the limiting rod 303 to drive the sliding block 103 to slide in the fixing groove 101. When the sliding block 103 slides to the end of the fixing groove 101, the limiting rod 303 can be limited, and then the connecting rod 302 and the rotating roller 301 are limited. At this time, the surface of the rotating roller 301 facing the bending groove 100a is tangent to the side wall plane of the bending groove 100a, so that the sheet metal part can be bent into the required shape.

[0046] In this embodiment, through the action of the guiding component 300, the problem that the sheet metal part slides on the surface of the lower die cutter 100 and causes scratches is avoided. In addition, the limiting rod 303 in the guiding component 300 is limited through the cooperation of the sliding block 103 and the fixing groove 101, avoiding excessive rotation of the rotating roller 301 and the connecting rod 302. As a result, when the rotating roller 301 guides the sheet metal part, the sheet metal part can enter the bending groove 100a, and during the bending process, the sheet metal part can adhere to the side wall of the bending groove 100a, thus forming the required shape.

[0047] As Figures 5 - 8 shown, the rapid prototyping bending cutter in this embodiment is also equipped with an adjusting component 400. The adjusting component 400 is used to adjust the sliding distance of the sliding block 103 in the fixing groove 101. As Figure 7 and Figure 8 shown, in this embodiment, a through hole is formed at the end of the lower die cutter 100. The through hole is communicated with the fixing groove 101. A threaded rod 402 is threadedly assembled in the through hole. One end of the threaded rod 402 enters the fixing groove 101 and is rotatably connected to an abutting plate 401. When the threaded rod 402 rotates, it can drive the abutting plate 401 to move in the fixing groove 101. When the sliding block 103 abuts against the abutting plate 401, the sliding block 103 stops moving, and then the connecting rod 302 and the rotating roller 301 are limited through the limiting rod 303.

[0048] In this embodiment, when the length of the fixed groove 101 is too long, it is easy to cause the sliding block 103 to have too long a sliding stroke, so that when the movement of the sliding block 103 terminates, it is easy to cause the surface of the rotating roller 301 on the side relative to the bending groove 100a not to be tangent to the side wall plane of the bending groove 100a. The adjusting assembly 400 can drive the abutting plate 401 to move to adjust the stroke distance of the sliding block 103, so that when the movement of the sliding block 103 terminates, the surface of the rotating roller 301 on the side relative to the bending groove 100a is tangent to the side wall plane of the bending groove 100a, thus facilitating the operation. In addition, when the bending of the sheet metal part does not need to be consistent with the shape of the bending groove 100a, such as when the bending angle of the sheet metal part is smaller than the angle of the bending groove 100a, the adjusting assembly 400 can also be used to adjust the bending of the sheet metal part to form the required shape. Therefore, the setting of the adjusting assembly 400 greatly improves the practicability of the bending tool in this embodiment.

[0049] The above content further elaborates on the present invention in combination with specific embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should all be regarded as belonging to the protection scope determined by the claims submitted for the present invention.

Claims

1. A rapid prototyping bending tool, comprising a lower die tool (100) and an upper die tool (200). A bending groove (100a) is provided on the surface of the lower die tool (100), and a punch is provided on the upper die tool (200). When the punch enters the bending groove (100a) on the surface of the lower die tool (100), a sheet metal part can be bent. It is characterized in that, A guiding component (300) is further provided on the lower die cutter (100). The guiding component (300) includes a rotating roller (301). The rotating roller (301) is rotatably connected to a connecting rod (302). The connecting rod (302) is rotatably installed on the lower die cutter (100). After the sheet metal part enters the bending groove (100a), it can drive the rotating roller (301) and the connecting rod (302) to rotate. The end state of the connecting rod (302) driving the rotating roller (301) to rotate is that the surface of the rotating roller (301) facing the bending groove (100a) is tangent to the side wall plane of the bending groove (100a).

2. The rapid prototyping bending tool according to claim 1, characterized in that, A limiting rod (303) is rotatably installed on the connecting rod (302). The end of the limiting rod (303) is rotatably connected to a sliding block (103). The sliding block (103) is slidably assembled on the lower die cutter (100). During the rotation of the connecting rod (302), the sliding block (103) is driven to slide on the lower die cutter (100) through the limiting rod (303).

3. The rapid prototyping bending tool according to claim 2, characterized in that, A fixing groove (101) is formed on the side wall of the lower die cutter (100). A telescopic spring (102) is installed in the fixing groove (101). The end of the telescopic spring (102) is connected to the sliding block (103). The sliding block (103) is slidably assembled in the fixing groove (101). After the sliding block (103) stops sliding in the fixing groove (101), the surface of the rotating roller (301) facing the bending groove (100a) is tangent to the side wall plane of the bending groove (100a).

4. The rapid prototyping bending tool according to claim 3, wherein An adjusting component (400) is further provided in the fixing groove (101). The adjusting component (400) is used to adjust the stroke distance of the sliding block (103) sliding in the fixing groove (101).

5. The rapid prototyping bending tool according to claim 4, wherein The adjusting component (400) includes a threaded rod (402) and an abutting plate (401). The abutting plate (401) is slidably assembled in the fixing groove (101). The threaded rod (402) passes through the lower die cutter (100) and is threadedly assembled with the lower die cutter (100). By rotating the threaded rod (402), the abutting plate (401) can be driven to slide in the fixing groove (101).

6. The rapid prototyping bending tool according to claim 5, characterized in that, After the sliding block (103) slides in the fixing groove (101) and abuts against the abutting plate (401), the sliding block (103) stops sliding. When the sliding block (103) stops sliding, the surface of the rotating roller (301) facing the bending groove (100a) is tangent to the side wall plane of the bending groove (100a).

7. A rapid prototyping bending tool, comprising a lower die tool (100) and an upper die tool (200). A bending groove (100a) is provided on the surface of the lower die tool (100), and a punch is provided on the upper die tool (200). When the punch enters the bending groove (100a) on the surface of the lower die tool (100), a sheet metal part can be bent. It is characterized in that, A guiding component (300) is further provided on the lower die cutter (100). The guiding component (300) includes a rotating roller (301). The rotating roller (301) is rotatably connected to a connecting rod (302). The connecting rod (302) is rotatably mounted on the lower die cutter (100). After the sheet metal part enters the bending groove (100a), it can drive the rotating roller (301) and the connecting rod (302) to rotate. A limiting rod (303) is rotatably mounted on the connecting rod (302). A sliding block (103) is rotatably mounted at the end of the limiting rod (303). The sliding block (103) is slidably assembled on the lower die cutter (100) and is limited by an adjusting component (400) so that the angle formed after the sheet metal part is bent is different from the angle of the bending groove (100a).

8. The rapid prototyping bending tool according to claim 7, characterized in that A fixing groove (101) is formed on the side wall of the lower die cutter (100). A telescopic spring (102) is installed in the fixing groove (101). The end of the telescopic spring (102) is connected to the sliding block (103). The sliding block (103) is slidably assembled in the fixing groove (101) and is limited by an adjusting component (400).

9. The rapid prototyping bending tool according to claim 8, wherein The adjusting component (400) includes a threaded rod (402) and an abutting plate (401). The abutting plate (401) is slidably assembled in the fixing groove (101). The threaded rod (402) passes through the lower die cutter (100) and is threadedly assembled with the lower die cutter (100). By rotating the threaded rod (402), the abutting plate (401) can be driven to slide in the fixing groove (101). The sliding block (103) stops sliding after abutting against the abutting plate (401).

10. The rapid prototyping bending tool according to claim 9, characterized in that, The bending angle of the sheet metal part is smaller than the angle of the bending groove (100a) after the abutting plate (401) limits the sliding block (103).

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