Eccentric bending mechanism

Abstract

The utility model discloses an eccentric bending mechanism which comprises a bending mechanism and an eccentric mechanism. The bending mechanism comprises an overturning plate, a bending mold and a first driving device; the eccentric mechanism comprises a fixed seat, a movable seat and a second driving device, the fixed seat is provided with a pivoting hole, the first driving device is connected to the pivoting hole through a first rotating shaft, the movable seat is movably arranged on the fixed seat, the movable seat is provided with an eccentric hole, the first rotating shaft is of a hollow structure, and the second driving device is connected with a second rotating shaft; the second rotating shaft is arranged in the first rotating shaft, one end of the second rotating shaft penetrates through the first rotating shaft and is arranged on the eccentric hole, and the overturning plate is arranged on the movable seat; thus, through the design of the eccentric mechanism, the bending die is controlled to shift towards the outer side direction of the workpiece according to the bending requirements of the workpieces with different thicknesses, so that the bending operation of the bending die on the workpieces with different thicknesses is realized, the bending quality of the workpieces is ensured to be stable and consistent, the rework rate of the workpieces is reduced, the use requirements of users are met, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technology in the field of workpiece bending, in particular to an eccentric bending mechanism. Background Art

[0002] At present, with the development of the economy and the continuous improvement of living standards, the fields of sheet metal use are becoming more and more extensive. The products processed from sheet metal are widely used in people's lives, from automotive panels to computer chassis, and then from network communication to household appliances. The structural forms of sheet metal parts are diverse. Moreover, when processing sheet metal parts, according to the requirements of products, the sheet metal needs to be bent and formed multiple times. The dimensions are not easy to control and the process is complex. At the same time, the processing of sheet metal parts usually uses a bending machine for bending operations. A bending machine is a machine that can bend sheet metal. The traditional bending machine is manual, with a complex machine structure, heavy operation, low production efficiency, long processing time, and high cost, which cannot meet the user's usage requirements.

[0003] Later, an automatic bending machine appeared on the market. It usually includes a positioning machine table, a material pressing device, and a bending device. The sheet metal is placed on the positioning machine table, pressed and fixed by the material pressing device, and then the bending requirements of the sheet metal are input, and the bending device is used to bend it, so as to realize the automatic processing of the sheet metal. However, the existing bending machine has a poor structural design. Since the bending positions of sheet metals with different thicknesses are different, when the user bends sheet metals with different thicknesses each time, it is necessary to adjust the position of the bending device according to the bending requirements of the sheet metals with different thicknesses, resulting in easy deviation in the bending effects of sheet metals with different thicknesses and rework. The operation is troublesome, the use is inconvenient, the rework rate is high, the practicability is poor, and the applicable range is small.

[0004] Therefore, it is necessary to study a new technical solution to solve the above problems. Summary of the Utility Model

[0005] In view of this, in view of the deficiencies of the existing technology, the main purpose of the present utility model is to provide an eccentric bending mechanism. Through the design of the eccentric mechanism, according to the bending requirements of workpieces with different thicknesses, the bending die is controlled to shift and adjust towards the outer side direction of the workpiece, so as to realize the bending operation of the bending die on workpieces with different thicknesses, ensure the stable and consistent bending quality of the workpieces, reduce the rework rate of the workpieces, meet the user's usage requirements, and have a wide applicable range.

[0006] To achieve the above purpose, the present utility model adopts the following technical solutions:

[0007] An eccentric bending mechanism includes a bending mechanism and an eccentric mechanism. Specifically: The bending mechanism includes a turning plate, a bending die for bending a workpiece, and a first driving device for controlling the rotation of the turning plate. The bending die is arranged at the upper end of the turning plate. The eccentric mechanism is arranged on the turning plate. The eccentric mechanism includes a fixed seat, a movable seat, and a second driving device. A pivot hole penetrating left and right is arranged on the fixed seat. The first driving device is connected to the pivot hole through a first rotating shaft. The movable seat is movably arranged on the fixed seat. The movable seat is provided with an eccentric hole, and the center position of the eccentric hole is different from that of the pivot hole. The first rotating shaft is of a hollow structure. The output end of the second driving device is connected with a second rotating shaft. The second rotating shaft is arranged inside the first rotating shaft. One end of the second rotating shaft passes through the first rotating shaft and is arranged on the eccentric hole. The turning plate is arranged on the movable seat.

[0008] As a preferred solution, two eccentric mechanisms are provided and are respectively arranged at the left end and the right end of the turning plate. Correspondingly, two first driving devices and two first rotating shafts are provided.

[0009] As a preferred solution, a connecting hole is arranged on the movable seat, and a connecting piece for connecting with the second rotating shaft is arranged in the connecting hole. The eccentric hole is arranged on the connecting piece.

[0010] As a preferred solution, both the connecting hole and the connecting piece are of a square structure.

[0011] As a preferred solution, first displacement devices are arranged at both the left end and the right end of the turning plate. The first displacement devices are located below the movable seat. The output ends of the first displacement devices are connected to the lower ends of the movable seats to control the movable seats to drive the fixed seats to rise or fall together. Correspondingly, a second displacement device for controlling the lifting of the first driving device and the second driving device is connected to the outside of the first rotating shaft. When the first displacement device controls the lifting of the movable seat and the fixed seat, the second displacement device simultaneously controls the first driving device and the second driving device to lift together.

[0012] As a preferred solution, a first sliding rail extending vertically is arranged on the side surface of the movable seat close to the turning plate, and a first sliding groove is arranged on the side surface of the turning plate close to the movable seat. The first sliding rail is adaptively positioned on the first sliding groove.

[0013] As a preferred solution, a mounting seat for connecting with the equipment is connected to the outside of the first rotating shaft. A second sliding groove is arranged on the mounting seat for connecting with a second sliding rail on the equipment that matches the second sliding groove. The second displacement device is drivingly connected to the mounting seat.

[0014] As a preferred solution, the flipping plate includes a top seat and a bottom seat. The top seat is detachably arranged at the upper end of the bottom seat. The bending die is arranged at the upper end of the top seat, and the movable seat is connected to the bottom seat.

[0015] As a preferred solution, the bottom seat has a cavity with one end open. The cavity extends horizontally along the length direction of the bottom seat, and reinforcing ribs are arranged in the cavity.

[0016] As a preferred solution, the reinforcing ribs include a first reinforcing rib and a second reinforcing rib. The first reinforcing rib extends vertically, and the second reinforcing rib extends obliquely. The second reinforcing rib is arranged between two adjacent first reinforcing ribs.

[0017] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions, it mainly controls the offset adjustment of the bending die towards the outer side of the workpiece according to the bending requirements of workpieces with different thicknesses through the design of the eccentric mechanism, so as to realize the bending operation of the bending die on workpieces with different thicknesses, ensure the accurate bending position of the bending die on workpieces with different thicknesses, ensure the stable and consistent bending quality of the workpieces, reduce the rework rate of the workpieces, meet the use requirements of users, and has a wide application range.

[0018] Secondly, the setting of the first displacement device is used to adjust the height of the eccentric mechanism, increase the position adjustment of the bending die, and can also finely adjust the eccentric mechanism, which is beneficial to the position adjustment and use of the bending die. With the setting of the second displacement device, it is beneficial for other components to lift and adjust together with the eccentric mechanism, avoiding the influence on the use of the bending mechanism due to inconsistent heights of other components, ensuring the use stability of the bending mechanism and the eccentric mechanism. At the same time, the settings of the first slide rail, the first chute, and the second chute ensure the lifting displacement stability of the eccentric mechanism and the bending mechanism.

[0019] In addition, the setting of the reinforcing ribs improves the overall structural strength of the flipping plate and further improves the use stability of the bending mechanism, with good usability.

[0020] To more clearly elaborate on the structural features and functions of the utility model, the following will detail the utility model in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional schematic diagram of an embodiment of the utility model;

[0022] Figure 2 is Figure 1 a partial enlarged schematic diagram of the position A shown;

[0023] Figure 3 is a cross-sectional view of an embodiment of the utility model;

[0024] Figure 4 is Figure 3 a partial enlarged schematic view of the position B shown in the figure.

[0025] Explanation of the attached drawing labels:

[0026] 10. Bending mechanism 11. Flipping plate

[0027] 111. First chute 112. Top seat

[0028] 113. Base 114. Concave cavity

[0029] 115. Reinforcing rib 116. First reinforcing rib

[0030] 117. Second reinforcing rib 12. Bending die

[0031] 13. First driving device 14. First rotating shaft

[0032] 15. First displacement device 16. Second displacement device

[0033] 17. Mounting seat 171. Second chute

[0034] 172. Second slide rail 20. Eccentric mechanism

[0035] 21. Fixed seat 211. Pivoting hole

[0036] 22. Movable seat 221. Eccentric hole

[0037] 222. Connecting hole 223. First slide rail

[0038] 23. Second driving device 24. Second rotating shaft

[0039] 25. Connecting piece. Specific implementation manner

[0040] Please refer to Figures 1 to 4 shown in the figure, which shows the specific structure of the embodiment of the present utility model.

[0041] An eccentric bending mechanism includes a bending mechanism 10 and an eccentric mechanism 20; wherein:

[0042] The bending mechanism 10 includes a flipping plate 11, a bending die 12 for bending a workpiece, and a first driving device 13 for controlling the rotation of the flipping plate. The bending die 12 is arranged at the upper end of the flipping plate 11. The eccentric mechanism 20 is arranged on the flipping plate 11. The eccentric mechanism 20 includes a fixed seat 21, a movable seat 22, and a second driving device 23. A pivot hole 211 penetrating left and right is arranged on the fixed seat 21. The first driving device 13 is connected to the pivot hole 211 through a first rotating shaft 14. The movable seat 22 is movably arranged on the fixed seat 21. The movable seat 22 is provided with an eccentric hole 221. The center position of the eccentric hole 221 is different from that of the pivot hole 211. The first rotating shaft 14 is of a hollow structure. The output end of the second driving device 23 is connected with a second rotating shaft 24. The second rotating shaft 24 is arranged inside the first rotating shaft 14. One end of the second rotating shaft 24 passes through the first rotating shaft 14 and is arranged on the eccentric hole 221. The flipping plate 11 is arranged on the movable seat 22.

[0043] Specifically, two eccentric mechanisms 20 are arranged and are respectively arranged at the left end and the right end of the flipping plate 11. Correspondingly, two first driving devices 13 and two first rotating shafts 14 are arranged. Moreover, a connecting hole 222 is arranged on the movable seat 22. A connecting piece 25 for connecting with the second rotating shaft is arranged in the connecting hole 222. The eccentric hole 221 is arranged on the connecting piece 25. Both the connecting hole 222 and the connecting piece 25 are of a square structure. Thus, through the design of the eccentric mechanism, the bending die is controlled to offset and adjust towards the outer side of the workpiece according to the bending requirements of workpieces with different thicknesses, so as to realize the bending operation of the bending die on workpieces with different thicknesses, ensure the accurate bending position of the bending die on workpieces with different thicknesses, ensure the stable and consistent bending quality of the workpieces, reduce the rework rate of the workpieces, meet the use requirements of users, and have a wide application range.

[0044] In addition, first displacement devices 15 are provided at both the left end and the right end of the flipping plate 11. The first displacement devices 15 are located below the movable seat 22, and the output ends of the first displacement devices 15 are connected to the lower ends of the movable seat 22 to control the movable seat 22 to drive the fixed seat 21 to rise or fall together. Correspondingly, a second displacement device 16 for controlling the lifting of the first driving device and the second driving device is connected to the outer side of the first rotating shaft 14. When the first displacement device 15 controls the lifting of the movable seat 22 and the fixed seat 21, the second displacement device 16 simultaneously controls the first driving device 13 and the second driving device 23 to lift together. In this way, the setting of the first displacement device is used to adjust the height of the eccentric mechanism, increase the position adjustment of the bending die, and can also finely adjust the eccentric mechanism, which is beneficial to the position adjustment and use of the bending die, with good usability. With the setting of the second displacement device, it is beneficial for other components to lift and adjust together with the eccentric mechanism, avoiding the influence on the use of the bending mechanism due to inconsistent heights of other components, and ensuring the use stability of the bending mechanism and the eccentric mechanism.

[0045] Preferably, a first sliding rail 223 extending vertically is provided on the side of the movable seat 22 close to the flipping plate, and a first sliding groove 111 is provided on the side of the flipping plate 11 close to the movable seat. The first sliding rail 223 is adaptively positioned on the first sliding groove 111. Moreover, a mounting seat 17 for connecting to the equipment is connected to the outer side of the first rotating shaft 14. A second sliding groove 171 is provided on the mounting seat 17 for connecting to a second sliding rail 172 on the equipment that matches the second sliding groove. The second displacement device 16 is drivingly connected to the mounting seat 17. In this way, the settings of the first sliding rail, the first sliding groove, and the second sliding groove ensure the lifting displacement stability of the eccentric mechanism and the bending mechanism.

[0046] Furthermore, the flipping plate 11 includes a top seat 112 and a bottom seat 113. The top seat 112 is detachably arranged on the upper end of the bottom seat 113. The bending die 12 is arranged on the upper end of the top seat 112. The movable seat 22 is connected to the bottom seat 113. The bottom seat 113 has a cavity 114 with one end open, and the cavity 114 extends horizontally along the length direction of the bottom seat 113. Reinforcing ribs 115 are arranged in the cavity 114. Specifically, the reinforcing ribs 115 include a first reinforcing rib 116 and a second reinforcing rib 117. The first reinforcing rib 116 extends vertically, and the second reinforcing rib 117 extends obliquely. The second reinforcing rib 117 is arranged between two adjacent first reinforcing ribs 116. In this way, the overall structural strength of the flipping plate is improved, further improving the use stability of the bending mechanism, with good usability.

[0047] The design focus of the present utility model lies in that, mainly through the design of an eccentric mechanism, it controls the offset adjustment of the bending die towards the outer side of the workpiece according to the bending requirements of workpieces with different thicknesses, thereby realizing the bending operation of the bending die on workpieces with different thicknesses, ensuring the accurate bending position of the bending die on workpieces with different thicknesses, guaranteeing the stable and consistent bending quality of the workpieces, reducing the rework rate of the workpieces, meeting the usage requirements of users, and having a wide range of applications;

[0048] Secondly, the setting of the first displacement device is used to adjust the height of the eccentric mechanism, increase the position adjustment of the bending die, and can also finely adjust the eccentric mechanism, which is beneficial to the position adjustment and use of the bending die, with good usability. In cooperation with the setting of the second displacement device, it is beneficial for other components to be lifted and adjusted together with the eccentric mechanism, avoiding the influence on the use of the bending mechanism due to inconsistent heights of other components, and ensuring the use stability of the bending mechanism and the eccentric mechanism. At the same time, the settings of the first slide rail, the first chute, and the second chute ensure the lifting displacement stability of the eccentric mechanism and the bending mechanism;

[0049] In addition, the setting of the reinforcing rib improves the overall structural strength of the turning plate and further improves the use stability of the bending mechanism, with good usability.

[0050] As mentioned above, it is only a preferred embodiment of the present utility model, and does not impose any limitation on the technical scope of the present utility model. Therefore, any minor modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. An eccentric bending mechanism, characterized in that: It includes a bending mechanism and an eccentric mechanism; wherein: the bending mechanism includes a flip plate, a bending mold for bending a workpiece and a first driving device for controlling the rotation of the flip plate, the bending mold is arranged on the upper end of the flip plate; the eccentric mechanism is arranged on the flip plate, the eccentric mechanism includes a fixed seat, a movable seat and a second driving device, the fixed seat is provided with a pivot hole that passes through the left and right sides, the first driving device is connected to the pivot hole through a first rotating shaft, the movable seat can be movably arranged on the fixed seat, the movable seat is provided with an eccentric hole, the center position of the eccentric hole is different from the center of the pivot hole, the first rotating shaft is a hollow structure, the output end of the second driving device is connected to the second rotating shaft, the second rotating shaft is arranged inside the first rotating shaft, one end of the second rotating shaft passes through the first rotating shaft and is arranged on the eccentric hole, and the flip plate is arranged on the movable seat.

2. An eccentric bending mechanism according to claim 1, characterized in that: The eccentric mechanisms are provided in two and are respectively arranged at the left end and the right end of the flip plate. Correspondingly, the first driving device and the first rotating shaft are both provided in two.

3. The eccentric bending mechanism according to claim 1, characterized in that: The movable seat is provided with a connecting hole, a connecting piece for connecting with the second rotating shaft is provided in the connecting hole, and the eccentric hole is provided on the connecting piece.

4. An eccentric bending mechanism according to claim 3, characterized in that: The connecting hole and the connecting piece are both in square structure.

5. The eccentric bending mechanism according to claim 2, characterized in that: A first displacement device is provided at the left and right ends of the flip plate, and the first displacement device is located below the movable seat. The output end of the first displacement device is connected to the lower end of the movable seat to control the movable seat to rise or fall together with the fixed seat; correspondingly, a second displacement device for controlling the lifting and lowering of the first drive device and the second drive device is connected to the outer side of the first rotating shaft. When the first displacement device controls the lifting and lowering of the movable seat and the fixed seat, the second displacement device simultaneously controls the first drive device and the second drive device to lift and lower together.

6. An eccentric bending mechanism according to claim 5, characterized in that: A first slide rail extending up and down is arranged on the side of the movable seat close to the flip plate, and a first slide groove is arranged on the side of the flip plate close to the movable seat. The first slide rail is adapted to be positioned on the first slide groove.

7. The eccentric bending mechanism according to claim 5, characterized in that: The outer side of the first rotating shaft is connected to a mounting seat for connecting with a device. The mounting seat is provided with a second slide groove for connecting with a second slide rail matching the second slide groove on the device. The second displacement device is drivingly connected to the mounting seat.

8. The eccentric bending mechanism according to claim 1, characterized in that: The flip plate comprises a top seat and a base, the top seat is detachably arranged at the upper end of the base, the bending mold is arranged at the upper end of the top seat, and the movable seat is connected to the base.

9. An eccentric bending mechanism according to claim 8, characterized in that: The base has a concave cavity with an open end, the concave cavity is arranged to extend transversely along the length direction of the base, and reinforcing ribs are arranged in the concave cavity.

10. An eccentric bending mechanism according to claim 9, characterized in that: The reinforcing ribs include a first reinforcing rib and a second reinforcing rib, wherein the first reinforcing rib is vertically extending, the second reinforcing rib is obliquely extending, and the second reinforcing rib is disposed between two adjacent first reinforcing ribs.

Images