Bending center with novel transmission mechanism

Abstract

The utility model discloses a bending center with a novel transmission mechanism, which is arranged on a machine frame through a first bending driving device and drives a bending frame to move back and forth, and the first bending driving device comprises a first driving assembly, a first eccentric shaft and a first transmission rod assembly. The second bending driving device is arranged on the rack in cooperation with the second bending driving device and matched with the first bending driving device to drive the bending frame to complete the bending action, and the second bending driving device comprises a second driving assembly, a second eccentric shaft and a second transmission rod assembly. The bending process of the bending frame in two directions is completed in a transmission mode of the eccentric shafts, compared with a traditional lead screw transmission mode, the response speed is higher, the bending precision is higher, the transmission mode of the eccentric shafts and the movement angles of the bending frame are more, meanwhile, the first eccentric shafts and the second eccentric shafts are matched, and therefore the bending precision is improved. And the bending process of more different angles can be completed, so that more machining requirements are met.

Description

Technical Field

[0001] The utility model relates to the field of bending machine technology, in particular to a bending center with a novel transmission mechanism. Background Art

[0002] A bending machine is a machine that can bend thin plates. Its structure mainly includes a bracket, a workbench and a clamping plate. The workbench is placed on the bracket. The workbench consists of a base and a pressure plate. The base is connected to the clamping plate by a hinge. The base consists of a base shell, a coil and a cover plate. The coil is placed in the depression of the base shell, and the top of the depression is covered with a cover plate. When in use, the coil is energized by a wire, and after energization, an attractive force is generated on the pressure plate, thereby clamping the thin plate between the pressure plate and the base. Due to the use of electromagnetic force clamping, the pressure plate can be made into a variety of workpiece requirements, and can process workpieces with side walls. It is also very easy to operate. Among them, the bending center is also a type of bending machine.

[0003] In order to complete the bending process in the up and down directions, the existing bending center generally first adopts a screw transmission method to complete the movement in the front and back directions, and then uses the screw transmission method to complete the bending process in the up and down directions. The screw transmission method not only has a slow corresponding speed, but also causes the bending accuracy of the screw transmission method to be unable to be guaranteed during bending. At the same time, the bending angle is also relatively fixed, and only the bending process in the up and down directions can be performed, which cannot meet more processing requirements; therefore, it is necessary to make further improvements to the existing bending center structure. Utility Model Content

[0004] In view of this, the utility model aims to address the deficiencies in the prior art, and its main purpose is to provide a bending center with a new transmission mechanism, which can effectively solve the problems of the existing bending center, such as slow response speed, insufficient bending accuracy, fixed bending angle and inability to meet more processing requirements.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A bending center with a new transmission mechanism comprises a frame, a tool frame, a tool head, a tool driving device, a bending frame, a bending tool head, a first bending driving device and a second bending driving device; the frame is provided with a laterally extending support platform; the tool frame can be movably arranged on the frame and is located above the support platform; the tool head is arranged on the tool frame and moves up and down back and forth with the tool frame, and the tool head is located directly above the support platform; the tool driving device is arranged on the tool frame and drives the tool frame to move up and down back and forth; the bending frame can be movably arranged on the frame and is located beside the support platform, and the bending frame is a C-shaped structure; the bending tool heads are arranged in two, and the two bending tool heads are symmetrically arranged on the bending frame up and down and move back and forth with the bending frame; the first bending driving device is arranged on the frame and drives the bending frame to move back and forth forward and backward, and the first bending driving device The present invention relates to a first driving assembly, a first eccentric shaft and a first transmission rod assembly, wherein the first driving assembly is arranged on the frame, the first eccentric shaft is arranged at the output end of the first driving assembly and is driven to rotate back and forth by the first driving assembly, one end of the first transmission rod assembly is hinged to the first eccentric shaft, and the other end of the first transmission rod assembly is hinged to the bending frame; the second bending driving device is arranged on the frame and cooperates with the first bending driving device to drive the bending frame to complete the bending action, and the second bending driving device comprises a second driving assembly, a second eccentric shaft and a second transmission rod assembly; the second driving assembly is arranged on the frame; the second eccentric shaft is arranged at the output end of the second driving assembly and is driven to rotate back and forth by the second driving assembly; one end of the second transmission rod assembly is hinged to the second eccentric shaft and moves back and forth with the second eccentric shaft, and the other end of the second transmission rod assembly is hinged to the bending frame.

[0007] As a preferred solution, the tool driving device includes a third driving assembly, a third eccentric shaft and a third transmission rod assembly. The third driving assembly is arranged on the tool holder; the third eccentric shaft is connected to the output end of the third driving assembly and is driven to rotate back and forth by the third driving assembly, the upper end of the third transmission rod assembly is hinged to the third eccentric shaft and is driven to move back and forth by the third eccentric shaft, and the lower end of the third transmission rod assembly is hinged to the frame.

[0008] As a preferred solution, a through hole is provided on the bending frame for the third transmission rod assembly to pass through, and the lower end of the third transmission rod assembly extends downwardly out of the bending frame through the through hole and is hinged to the frame.

[0009] As a preferred solution, the tool drive devices are two arranged laterally at intervals, and the two tool drive devices simultaneously drive the tool holder to move up and down and back and forth.

[0010] As a preferred solution, the lower end of the bending frame is connected to the frame via a hydraulic telescopic rod assembly, and the hydraulic telescopic rod assemblies are two symmetrically arranged laterally.

[0011] As a preferred solution, the first driving component includes a first servo motor and a first reducer, the input end of the first reducer is connected to the output end of the first servo motor, the first eccentric shaft is connected to the output end of the first reducer and is driven to rotate back and forth by the first reducer.

[0012] As a preferred solution, the first transmission rod assembly includes a first connecting rod, a second connecting rod and a connecting shaft; one end of the first connecting rod is hinged to the first eccentric shaft; one end of the second connecting rod is hinged to the other end of the first connecting rod; the connecting shaft is hinged to the other end of the second connecting rod, and two laterally arranged hinges are provided on the connecting shaft, and the two hinges are respectively hinged to the bending frame.

[0013] As a preferred solution, the second driving component includes a second servo motor and a second reducer, the input end of the second reducer is connected to the output end of the second servo motor; the second eccentric shaft is connected to the output end of the second reducer and is driven to move back and forth by the second reducer.

[0014] As a preferred solution, the second drive assemblies are two laterally symmetrically arranged, and the output ends of the two second drive assemblies are respectively connected to the two ends of the second eccentric shaft. Correspondingly, the second transmission rod assemblies are also two laterally spaced apart, and one end of the two second transmission rod assemblies is respectively connected to the second eccentric shaft, and the other ends of the two second transmission rod assemblies are respectively hinged to the bending frame.

[0015] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0016] The first bending drive device is arranged on the frame and drives the bending frame to move back and forth. The first bending drive device includes a first drive assembly, a first eccentric shaft and a first transmission rod assembly, and cooperates with the second bending drive device to be arranged on the frame and cooperates with the first bending drive device to drive the bending frame to complete the bending action. The second bending drive device includes a second drive assembly, a second eccentric shaft and a second transmission rod assembly; the bending process of the bending frame in two directions is completed through the transmission method of the eccentric shaft. Compared with the traditional screw transmission method, not only the response speed is faster, the bending accuracy is higher, and the eccentric shaft transmission method allows the bending frame to have more movable angles. At the same time, the cooperation of the first eccentric shaft and the second eccentric shaft allows it to complete more bending processes at different angles, thereby meeting more processing requirements.

[0017] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a three-dimensional structural schematic diagram of a preferred embodiment of the utility model;

[0019] Figure 2 It is a partial assembly diagram of a preferred embodiment of the utility model;

[0020] Figure 3 This is another partial assembly diagram of a preferred embodiment of the utility model;

[0021] Figure 4 This is another partial assembly diagram of a preferred embodiment of the utility model.

[0022] Description of the accompanying drawings:

[0023] 10. Frame 11. Support table

[0024] 20. Tool holder 30. Tool head

[0025] 40. Tool drive device 41. Third drive assembly

[0026] 42. Third eccentric shaft 43. Third transmission rod assembly

[0027] 50. Bending frame 501. Through hole

[0028] 51. Hydraulic telescopic rod assembly 60. Bending cutter head

[0029] 70. First bending drive device 71. First drive assembly

[0030] 711, first servo motor 712, first reducer

[0031] 72. First eccentric shaft 73. First transmission rod assembly

[0032] 731, first connecting rod 732, second connecting rod

[0033] 733, connecting shaft 734, hinge

[0034] 80. Second bending drive device 81. Second drive assembly

[0035] 811, second servo motor 812, second reducer

[0036] 82. Second eccentric shaft 83. Second transmission rod assembly. DETAILED DESCRIPTION

[0037] Please refer to Figures 1 to 4As shown, it shows the specific structure of the preferred embodiment of the utility model, which includes a frame 10, a tool frame 20, a tool head 30, a tool drive device 40, a bending frame 50, a bending tool head 60, a first bending drive device 70 and a second bending drive device 80.

[0038] The frame 10 has a support platform 11 extending transversely.

[0039] The tool holder 20 is movably disposed on the frame 10 and is located above the support platform 11 .

[0040] The tool head 30 is disposed on the tool holder 20 and moves up and down with the tool holder 20 . The tool head 30 is located directly above the support platform 11 . The tool head 30 is used to press the product to be processed by cooperating with the support platform 11 .

[0041] The tool drive device 40 is arranged on the tool holder 20 and drives the tool holder 20 to move up and down back and forth; in the present embodiment, the tool drive device 40 comprises a third drive assembly 41, a third eccentric shaft 42 and a third transmission rod assembly 43, the third drive assembly 41 is arranged on the tool holder 20; the third eccentric shaft 42 is connected to the output end of the third drive assembly 41 and is driven to rotate back and forth by the third drive assembly 41, the upper end of the third transmission rod assembly 43 is hinged to the third eccentric shaft 42 and is driven to move back and forth by the third eccentric shaft 42, and the lower end of the third transmission rod assembly 43 is hinged to the frame 10; the tool drive device 40 is two arranged in a transverse interval, and the two tool drive devices 40 drive the tool holder 20 to move up and down back and forth at the same time, and the two tool drive devices 40 are used to ensure the smoothness of the up and down movement of the tool holder 20 to prevent the left and right tilting.

[0042] The bending frame 50 can be movably arranged on the frame 10 and is located beside the support platform 11. The bending frame 50 is a C-shaped structure. In the present embodiment, a through hole 501 is provided on the bending frame 50 for the third transmission rod assembly 43 to pass through. The lower end of the third transmission rod assembly 43 extends downward from the bending frame 50 through the through hole 501 and is hinged to the frame 10. The lower end of the bending frame 50 is connected to the frame 10 through a hydraulic telescopic rod assembly 51. The hydraulic telescopic rod assembly 51 is two symmetrically arranged transversely. The hydraulic telescopic rod assembly 51 is used to support the bending frame 50, thereby reducing the transmission pressure of the first bending drive device 70 and the second bending drive device 80, and further ensuring the transmission accuracy.

[0043] The bending tool heads 60 are provided in two configurations. The two bending tool heads 60 are symmetrically arranged on the bending frame 50 up and down and move back and forth with the bending frame 50. The bending tool heads 60 are used to perform bending processing on the compacted product.

[0044] The first bending drive device 70 is arranged on the frame 10 and drives the bending frame 50 to move back and forth. The first bending drive device 70 includes a first driving assembly 71, a first eccentric shaft 72 and a first transmission rod assembly 73. The first driving assembly 71 is arranged on the frame 10. The first eccentric shaft 72 is arranged at the output end of the first driving assembly 71 and is driven to rotate back and forth by the first driving assembly 71. One end of the first transmission rod assembly 73 is hinged to the first eccentric shaft 72, and the other end of the first transmission rod assembly 73 is hinged to the bending frame 50. In this embodiment, the first driving assembly 71 includes a first servo motor 711 and a first reducer 712. The first reducer 71 2 is connected to the output end of the first servo motor 711, the first eccentric shaft 72 is connected to the output end of the first reducer 712 and drives the first eccentric shaft 72 to rotate back and forth through the first reducer 712; the first transmission rod assembly 73 includes a first connecting rod 731, a second connecting rod 732 and a connecting shaft 733; one end of the first connecting rod 731 is hinged to the first eccentric shaft 72; one end of the second connecting rod 732 is hinged to the other end of the first connecting rod 731; the connecting shaft 733 is hinged to the other end of the second connecting rod 732, and two hinges 734 arranged horizontally are provided on the connecting shaft 733, and the two hinges 734 are respectively hinged to the bending frame 50.

[0045] The second bending drive device 80 is arranged on the frame 10 and cooperates with the first bending drive device 70 to drive the bending frame 50 to complete the bending action. The second bending drive device 80 includes a second driving assembly 81, a second eccentric shaft 82 and a second transmission rod assembly 83; the second driving assembly 81 is arranged on the frame 10; the second eccentric shaft 82 is arranged at the output end of the second driving assembly 81 and is driven by the second driving assembly 81 to rotate back and forth; one end of the second transmission rod assembly 83 is hinged to the second eccentric shaft 82 and moves back and forth with the second eccentric shaft 82, and the other end of the second transmission rod assembly 83 is hinged to the bending frame 50; it replaces the existing screw transmission mode with the eccentric shaft transmission mode, which not only has a fast response speed and higher transmission accuracy, but also the cooperation of the first eccentric shaft 72 and the second eccentric shaft 82 can make the bending frame 50 have more bending angles and can meet more processing requirements; in this embodiment The second driving assembly 81 includes a second servo motor 811 and a second reducer 812, the input end of the second reducer 812 is connected to the output end of the second servo motor 811; the second eccentric shaft 82 is connected to the output end of the second reducer 812 and is driven to move back and forth by the second reducer 812; the second driving assembly 81 is two symmetrically arranged laterally, the output ends of the two second driving assemblies 81 are respectively connected to the two ends of the second eccentric shaft 82, and correspondingly, the second transmission rod assemblies 83 are also two laterally spaced apart, one end of the two second transmission rod assemblies 83 is respectively connected to the second eccentric shaft 82, and the other ends of the two second transmission rod assemblies 83 are respectively hinged to the bending frame 50, the two second transmission assemblies 81 and the second transmission rod assembly 83 are used to increase the vertical support force of the second bending drive device 80 on the bending frame 50, further ensuring the stability and accuracy of the bending process.

[0046] The design focus of the utility model is that: it is arranged on the frame through the first bending drive device and drives the bending frame to move back and forth, the first bending drive device includes a first drive assembly, a first eccentric shaft and a first transmission rod assembly, and is arranged on the frame in cooperation with the second bending drive device and drives the bending frame to complete the bending action, the second bending drive device includes a second drive assembly, a second eccentric shaft and a second transmission rod assembly; the bending process of the bending frame in two directions is completed through the transmission method of the eccentric shaft. Compared with the traditional screw transmission method, not only the response speed is faster, the bending accuracy is higher, and the eccentric shaft transmission method allows the bending frame to have more movable angles. At the same time, the cooperation of the first eccentric shaft and the second eccentric shaft allows it to complete more bending processes at different angles, thereby meeting more processing requirements.

[0047] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A bending center with a new transmission mechanism, characterized in that: The machine comprises a frame, a tool frame, a tool head, a tool driving device, a bending frame, a bending tool head, a first bending driving device and a second bending driving device; the frame is provided with a laterally extending support platform; the tool frame can be movably arranged on the frame and is located above the support platform; the tool head is arranged on the tool frame and moves up and down back and forth with the tool frame, and the tool head is located directly above the support platform; the tool driving device is arranged on the tool frame and drives the tool frame to move up and down back and forth; the bending frame can be movably arranged on the frame and is located beside the support platform, and the bending frame is a C-shaped structure; the bending tool head is arranged in two, and the two bending tool heads are symmetrically arranged on the bending frame up and down and move back and forth with the bending frame; the first bending driving device is arranged on the frame and drives the bending frame to move back and forth forward and backward, and the first bending driving device comprises a first driving group Part, a first eccentric shaft and a first transmission rod assembly, the first driving assembly is arranged on the frame, the first eccentric shaft is arranged at the output end of the first driving assembly and is driven to rotate back and forth by the first driving assembly, one end of the first transmission rod assembly is hinged to the first eccentric shaft, and the other end of the first transmission rod assembly is hinged to the bending frame; the second bending driving device is arranged on the frame and cooperates with the first bending driving device to drive the bending frame to complete the bending action, the second bending driving device includes a second driving assembly, a second eccentric shaft and a second transmission rod assembly; the second driving assembly is arranged on the frame; the second eccentric shaft is arranged at the output end of the second driving assembly and is driven to rotate back and forth by the second driving assembly; one end of the second transmission rod assembly is hinged to the second eccentric shaft and moves back and forth with the second eccentric shaft, and the other end of the second transmission rod assembly is hinged to the bending frame.

2. The bending center with a novel transmission mechanism according to claim 1 is characterized in that: The tool driving device includes a third driving assembly, a third eccentric shaft and a third transmission rod assembly. The third driving assembly is arranged on the tool holder. The third eccentric shaft is connected to the output end of the third driving assembly and is driven to rotate back and forth by the third driving assembly. The upper end of the third transmission rod assembly is hinged to the third eccentric shaft and is driven to move back and forth by the third eccentric shaft. The lower end of the third transmission rod assembly is hinged to the frame.

3. The bending center with a novel transmission mechanism according to claim 2 is characterized in that: The bending frame is provided with a through hole for the third transmission rod assembly to pass through, and the lower end of the third transmission rod assembly extends downwardly out of the bending frame through the through hole and is hinged to the frame.

4. The bending center with a novel transmission mechanism according to claim 1 is characterized in that: The tool drive devices are two arranged in a transverse manner and spaced apart from each other, and the two tool drive devices simultaneously drive the tool holder to move up and down and back and forth.

5. The bending center with a novel transmission mechanism according to claim 1 is characterized in that: The lower end of the bending frame is connected to the frame via a hydraulic telescopic rod assembly, and the hydraulic telescopic rod assemblies are two and are arranged symmetrically in the transverse direction.

6. The bending center with a novel transmission mechanism according to claim 1 is characterized in that: The first driving assembly includes a first servo motor and a first reducer, the input end of the first reducer is connected to the output end of the first servo motor, the first eccentric shaft is connected to the output end of the first reducer and is driven to rotate back and forth by the first reducer.

7. The bending center with a novel transmission mechanism according to claim 1 is characterized in that: The first transmission rod assembly includes a first connecting rod, a second connecting rod and a connecting shaft; one end of the first connecting rod is hinged to the first eccentric shaft; one end of the second connecting rod is hinged to the other end of the first connecting rod; the connecting shaft is hinged to the other end of the second connecting rod, and two horizontally arranged hinges are provided on the connecting shaft, and the two hinges are respectively hinged to the bending frame.

8. The bending center with a novel transmission mechanism according to claim 1 is characterized in that: The second driving assembly includes a second servo motor and a second reducer, the input end of the second reducer is connected to the output end of the second servo motor; the second eccentric shaft is connected to the output end of the second reducer and is driven to move back and forth by the second reducer.

9. The bending center with a novel transmission mechanism according to claim 1, characterized in that: The second drive assemblies are two and arranged symmetrically in transverse direction, and the output ends of the two second drive assemblies are respectively connected to the two ends of the second eccentric shaft. Correspondingly, the second transmission rod assemblies are also two and arranged in transverse intervals, and one end of the two second transmission rod assemblies is respectively connected to the second eccentric shaft, and the other ends of the two second transmission rod assemblies are respectively hinged to the bending frame.

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