Bending center rotating shaft with lifting mechanism

Abstract

The utility model discloses a bending central rotating shaft with a lifting mechanism, which is characterized in that an air cylinder hole extending up and down is integrally and concavely arranged on the upper end surface of a rotating main shaft, and the lower bottom of the air cylinder hole integrally and downwards extends to form an air passage communicated with an external pneumatic mechanism; a piston head matched with the side wall of the air cylinder hole is arranged at the lower end of the piston rod, so that the piston head can be arranged on the rotating main shaft in a manner of moving up and down back and forth under the driving of an external pneumatic mechanism; the elastic piece is clamped between the upper end face of the piston head and the rotating main shaft and promotes the piston rod to reset downwards, so that the elastic piece not only can play a supporting role, but also can drive the product to move upwards through the arrangement of the piston rod, the functionality is higher, and when the product which is bent downwards faces, only the piston rod needs to drive the product to move upwards; and then the whole product is taken out through the feeding device, manual participation is not needed, the material taking process is more convenient, and the overall machining efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bending centers, in particular to a rotary shaft of a bending center with a lifting mechanism. Background Art

[0002] A bending machine is a machine that can bend thin plates. Its structure mainly includes a frame, a hydraulic system, an electrical system, a slider mechanism, a synchronization mechanism, an upper and lower die mechanism, a back gauge, a front stock support, etc. The upper and lower die mechanism includes an upper pressing knife assembly and a lower bending die. According to different bending requirements, corresponding upper and lower bending dies are customized. Among them, the bending center is also a type of bending machine, and the bending center is mainly used in the bending process of large parts.

[0003] When the bending center bends a product, it needs to cooperate with a feeding mechanism. The feeding mechanism includes a supporting mechanism and a pressing mechanism. The product is clamped by the pressing of the pressing mechanism, and then the feeding and bending processes of the product are completed. The existing supporting mechanism supports the product through a supporting surface, which can only play the role of supporting the product, and its functionality is relatively single; and the upper surface of the supporting mechanism needs to be flush with the supporting seat in the bending mechanism. When bending the product downward, the downward-bent part will be below the supporting seat. When taking out the product, it is necessary to manually lift the product upward and then take it out, making the material taking process more troublesome and affecting the bending processing efficiency. Therefore, it is necessary to further improve the structure of the existing bearing device. Summary of the Utility Model

[0004] In view of this, in view of the deficiencies of the existing technology, the main purpose of the utility model is to provide a rotary shaft of a bending center with a lifting mechanism, which can effectively solve the problems of the existing bearing device with single function, troublesome material taking process and affecting bending processing efficiency.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A rotary shaft of a bending center with a lifting mechanism includes a mounting frame, a rotary main shaft, a servo drive integrated machine, a piston rod and an elastic member; the mounting frame is arranged on an external clamping device; the rotary main shaft is rotatably arranged on the mounting frame, a pressure-bearing block is arranged at the upper end of the rotary main shaft, a cylinder hole extending up and down is integrally recessed inward on the upper end surface of the rotary main shaft, and an air passage communicating with an external pneumatic mechanism extends downward integrally from the lower bottom of the cylinder hole; the servo drive integrated machine is arranged on the mounting frame and drives the rotary main shaft to rotate back and forth; the piston rod is arranged on the rotary main shaft so as to be able to move up and down, the lower end of the piston rod extends inward into the cylinder hole, and a piston head cooperating with the side wall of the cylinder hole is arranged at the lower end of the piston rod, and the upper end of the piston rod is beside the pressure-bearing block; the elastic member is clamped between the upper end surface of the piston head and the rotary main shaft and urges the piston rod to reset downward.

[0007] As a preferred solution, the mounting bracket includes bearing seats arranged at intervals up and down and a servo integrated machine mounting seat. The servo drive integrated machine is arranged on the servo integrated machine mounting seat, and the upper end of the rotating main shaft is rotatably connected to the bearing seat.

[0008] As a preferred solution, bearings are clamped between the rotating main shaft and the bearing seat, and two bearings are arranged up and down.

[0009] As a preferred solution, there are two pressure-bearing blocks arranged symmetrically horizontally, and the piston rod is located between the two pressure-bearing blocks.

[0010] As a preferred solution, anti-slip surfaces are arranged on the upper surfaces of the two pressure-bearing blocks.

[0011] As a preferred solution, a limit block is arranged on the rotating main shaft. The limit block is arranged at the upper opening of the cylinder hole and wraps the outer peripheral side wall of the piston rod, and the upper end of the elastic member abuts against the lower end surface of the limit block.

[0012] As a preferred solution, the elastic member is a spring. The spring is sleeved on the outer peripheral side wall of the piston rod and abuts against the upper end surface of the piston head and the rotating main shaft respectively.

[0013] As a preferred solution, a support plate is arranged at the upper end of the piston rod. When the piston rod moves to the bottommost position, the upper end surface of the support plate is flush with the upper end surface of the pressure-bearing block.

[0014] Compared with the prior art, the present utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions:

[0015] An air cylinder hole extending up and down is integrally recessed inward on the upper end surface of the rotating main shaft, and an air passage communicating with an external pneumatic mechanism extends downward integrally from the lower bottom of the air cylinder hole; and in cooperation with the lower end of the piston rod extending into the air cylinder hole inward, and a piston head cooperating with the side wall of the air cylinder hole is arranged at the lower end of the piston rod, so that it can be arranged on the rotating main shaft to move up and down back and forth under the drive of the external pneumatic mechanism, and the elastic member is clamped between the upper end surface of the piston head and the rotating main shaft and urges the piston rod to reset downward, so that it can not only play a supporting role, but also drive the product to move upward through the arrangement of the piston rod, with stronger functionality. When facing a product bent downward, only the piston rod needs to drive the product to move upward, and then the product can be taken out as a whole through the feeding device, without manual participation, and the material taking process is more convenient, greatly improving the overall processing efficiency.

[0016] To more clearly illustrate the structural features and functions of the present utility model, the present utility model will be described in detail below with reference to the drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic three - dimensional structure diagram of a preferred embodiment of the present utility model;

[0018] Figure 2 is a schematic cross - sectional view of a preferred embodiment of the present utility model;

[0019] Figure 3 is Figure 2 an enlarged schematic view of part A in

[0020] Explanation of the reference numerals in the drawings:

[0021] 10. Mounting frame 11. Bearing seat

[0022] 12. Servo integrated machine mounting seat 20. Rotating main shaft

[0023] 201. Cylinder hole 202. Air passage

[0024] 21. Pressure - bearing block 211. Anti - slip surface

[0025] 22. Bearing 23. Limit block

[0026] 30. Servo drive integrated machine 40. Piston rod

[0027] 41. Piston head 42. Support plate

[0028] 50. Elastic member. Detailed implementation manners

[0029] Please refer to Figures 1 to 3 as shown, which shows the specific structure of a preferred embodiment of the present utility model, including a mounting frame 10, a rotating main shaft 20, a servo drive integrated machine 30, a piston rod 40, and an elastic member 50.

[0030] The mounting frame 10 is arranged on an external material clamping device; in this embodiment, the mounting frame 10 includes a bearing seat 11 and a servo integrated machine mounting seat 12 arranged at intervals up and down, and both the bearing seat 11 and the servo integrated machine mounting seat 12 are arranged on the external material clamping device.

[0031] The rotating main shaft 20 is rotatably arranged on the mounting bracket 10. A pressure-bearing block 21 is arranged at the upper end of the rotating main shaft 20. An air cylinder hole 201 extending vertically is integrally recessed inward on the upper end surface of the rotating main shaft 20. An air passage 202 communicating with an external pneumatic mechanism extends downward integrally from the lower bottom of the air cylinder hole 201. In this embodiment, the upper end of the rotating main shaft 20 is rotatably connected to a bearing seat 11, and the bearing seat 11 is used to support the upper end of the rotating main shaft 20 to ensure the structural stability of the upper end of the rotating main shaft 20. A bearing 22 is clamped between the rotating main shaft 20 and the bearing seat 11, and two bearings 22 are arranged one above the other. The arrangement of the two bearings 22 makes the rotation process of the rotating main shaft 20 smoother. The two pressure-bearing blocks 21 are arranged symmetrically horizontally, and anti-slip surfaces 211 are arranged on the upper surfaces of the two pressure-bearing blocks 21 to prevent the product from sliding and shifting during the clamping process. A limiting block 23 is arranged on the rotating main shaft 20, and the limiting block 23 is arranged at the upper opening of the air cylinder hole 201 and wraps around the outer peripheral side wall of the piston rod 40.

[0032] The servo drive integrated machine 30 is arranged on the mounting bracket 10 and drives the rotating main shaft 20 to rotate back and forth, thereby realizing the rotary adjustment of the product and further improving its functionality. In this embodiment, the servo drive integrated machine 30 is arranged on a servo integrated machine mounting seat 12.

[0033] The piston rod 40 is arranged on the rotating main shaft 20 so as to be able to move up and down back and forth. The lower end of the piston rod 40 extends inward into the air cylinder hole 201, and a piston head 41 cooperating with the side wall of the air cylinder hole 201 is arranged at the lower end of the piston rod 40. The piston head 41 is used to improve the sealing performance between the piston rod 40 and the air cylinder hole 201 and prevent gas leakage when the external pneumatic mechanism drives the piston rod 40 to move up and down. The upper end of the piston rod 40 is located beside the pressure-bearing block 21. In this embodiment, the piston rod 40 is located between the two pressure-bearing blocks 21, so that the upper end of the piston rod 40 is directly below the center of gravity of the product, and the process of lifting the product upward is more stable. A support plate 42 is arranged at the upper end of the piston rod 40. When the piston rod 40 moves to the bottommost position, the upper end surface of the support plate 42 is flush with the upper end surface of the pressure-bearing block 21, so that the support plate 42 can also play a certain role in supporting the product, thereby increasing the contact area between the overall structure and the product.

[0034] The elastic member 50 is clamped between the upper end surface of the piston head 41 and the rotating main shaft 20 and urges the piston rod 40 to reset downward. In this embodiment, the upper end of the elastic member 50 abuts against the lower end surface of the limiting block 23. The elastic member 50 is a spring, and the spring is sleeved on the outer peripheral side wall of the piston rod 40 and abuts between the upper end surface of the piston head 41 and the rotating main shaft 20 respectively.

[0035] The design focus of the present utility model lies in that: a cylinder hole extending vertically is integrally recessed inward on the upper end face of the rotating main shaft, and an air passage communicating with an external pneumatic mechanism extends downward integrally from the lower bottom of the cylinder hole; and the lower end of the piston rod extends inward into the cylinder hole, and a piston head cooperating with the side wall of the cylinder hole is arranged at the lower end of the piston rod, so that it can be arranged on the rotating main shaft to move up and down under the drive of the external pneumatic mechanism, and an elastic member is clamped between the upper end face of the piston head and the rotating main shaft and urges the piston rod to reset downward, so that it can not only play a supporting role, but also drive the product to move upward through the arrangement of the piston rod, with stronger functionality. When facing a product bent downward, only the piston rod needs to drive the product to move upward, and then the product can be taken out as a whole by the feeding device, without manual participation, and the material taking process is more convenient, greatly improving the overall processing efficiency.

[0036] The above 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. A bending center rotating shaft with a lifting mechanism, characterized in that: It includes a mounting bracket, a rotating main shaft, a servo drive integrated machine, a piston rod and an elastic member; the mounting bracket is arranged on an external material clamping device; the rotating main shaft is rotatably arranged on the mounting bracket, a pressure-bearing block is arranged at the upper end of the rotating main shaft, a cylinder hole extending vertically is concavely formed integrally inwards on the upper end surface of the rotating main shaft, and an air passage communicating with an external pneumatic mechanism extends integrally downwards from the lower bottom of the cylinder hole; the servo drive integrated machine is arranged on the mounting bracket and drives the rotating main shaft to rotate back and forth; the piston rod is arranged on the rotating main shaft so as to be able to move up and down, the lower end of the piston rod extends inwards into the cylinder hole, and a piston head matched with the side wall of the cylinder hole is arranged at the lower end of the piston rod, and the upper end of the piston rod is located beside the pressure-bearing block; the elastic member is clamped between the upper end surface of the piston head and the rotating main shaft and urges the piston rod to reset downwards.

2. The rotating shaft of the bending center with a lifting mechanism according to claim 1, wherein: The mounting bracket includes a bearing seat and a servo integrated machine mounting seat arranged at intervals up and down, the servo drive integrated machine is arranged on the servo integrated machine mounting seat, and the upper end of the rotating main shaft is rotatably connected with the bearing seat.

3. The rotating shaft of the bending center with a lifting mechanism according to claim 2, characterized in that: Two bearings are clamped between the rotating main shaft and the bearing seat, and the bearings are arranged in two rows up and down.

4. The rotating shaft of the bending center with a lifting mechanism according to claim 1, characterized in that: There are two pressure-bearing blocks arranged symmetrically horizontally, and the piston rod is located between the two pressure-bearing blocks.

5. The rotating shaft of the bending center with a lifting mechanism according to claim 4, characterized in that: Anti-slip surfaces are arranged on the upper surfaces of the two pressure-bearing blocks.

6. The rotating shaft of the bending center with a lifting mechanism according to claim 1, characterized in that: A limit block is arranged on the rotating main shaft, the limit block is arranged at the upper opening of the cylinder hole and covers the outer peripheral side wall of the piston rod, and the upper end of the elastic member abuts against the lower end surface of the limit block.

7. The rotating shaft of the bending center with a lifting mechanism according to claim 1, characterized in that: The elastic member is a spring, and the spring is sleeved on the outer peripheral side wall of the piston rod and respectively abuts between the upper end surface of the piston head and the rotating main shaft.

8. The rotating shaft of the bending center with a lifting mechanism according to claim 1, characterized in that: A support plate is arranged at the upper end of the piston rod, and when the piston rod moves to the bottommost position, the upper end surface of the support plate is flush with the upper end surface of the pressure-bearing block.

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