Clamping assembly for numerical control bending and bending machine

Abstract

The utility model provides a clamping assembly for numerical control bending and a bending machine, and belongs to the technical field of numerical control bending. Comprising a base; the mounting frame is arranged on the base, and the mounting frame is in an L shape; the upper clamping part is arranged on the mounting frame; the moving assembly is arranged on the base and located on the rear side of the mounting frame; the two electric telescopic rods are arranged on the base in a sliding mode, and the two electric telescopic rods are symmetrically arranged along the longitudinal center line of the base; the two side clamping parts are arranged on the base in a sliding manner; one end of the electric telescopic rod is connected with the moving assembly, and the other end of the electric telescopic rod is connected with the side clamping part. The side clamping parts are arranged, and the driving motor drives the rotating block to rotate, so that the clamping blocks in different shapes can be selected and adjusted according to the shapes of the side faces of the workpieces to adapt to the workpieces in different shapes, and the clamp does not need to be frequently replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control bending, in particular to a clamping assembly for numerical control bending and a bending machine. Background Art

[0002] CNC bending utilizes CNC technology to bend sheet metal. It's widely used in industries like automotive, aerospace, and home appliance manufacturing. Bending allows flat sheet metal to be bent into desired shapes and angles, meeting the needs of various product designs. Clamping components are required to secure the sheet metal before the bending process can begin.

[0003] At present, the existing clamping assembly can only clamp fixed workpieces during use, and cannot clamp according to the different shapes of the workpiece side. Frequent replacement or adjustment of the clamp is required, which increases downtime. Therefore, this application provides a clamping assembly and bending machine for CNC bending to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a clamping assembly for CNC bending and a bending machine to solve the problem that the existing clamping assembly cannot clamp according to the different shapes of the side surfaces of the workpiece when in use.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A clamping assembly for CNC bending, comprising: a base; an L-shaped mounting frame provided on the base; an upper clamping portion provided on the mounting frame; a moving assembly provided on the base and located at the rear side of the mounting frame; two electric telescopic rods slidably provided on the base, the two electric telescopic rods being symmetrically provided along the longitudinal center line of the base; two side clamping portions slidably provided on the base; one end of the electric telescopic rod being connected to the moving assembly, and the other end being connected to the side clamping portion.

[0007] The upper clamping part includes: a plurality of cylinders, which are arranged on the installation frame; a lower pressure plate, which is movably arranged in the installation frame; the output end of the cylinder passes through the installation frame and is connected to the lower pressure plate; and a plurality of suction cups, which are arranged on the lower pressure plate.

[0008] It also includes: a displacement sensor, which is arranged on the installation frame.

[0009] The moving component includes: a placement slot, which is arranged on the base and located at the rear side of the installation frame; and a bidirectional motor, which is arranged at the center of the placement slot.

[0010] It also includes: two screw rods, which are respectively arranged on the output ends of both sides of the bidirectional motor; a slider, which is threadedly arranged on the screw rod; and the top of the slider is connected to the electric telescopic rod.

[0011] The side clamping part includes: a mounting plate, which is slidably arranged on the base, and the mounting plate is L-shaped; the mounting plate is connected to the output end of the electric telescopic rod; a driving motor is arranged on the mounting plate; and a rotating block is rotatably arranged below the mounting plate; the output end of the driving motor passes through the mounting plate and is connected to the rotating block.

[0012] It also includes: a plurality of clamping blocks, which are arranged on the rotating block; a pressure sensor, which is arranged in the clamping block; and a buffer pad, which is arranged on the clamping block.

[0013] A bending machine comprises any one of the above-mentioned clamping components for CNC bending.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] In the above solution, by setting up the side clamping part and driving the rotating block by the driving motor, clamping blocks of different shapes can be selected and adjusted according to the side shape of the workpiece to adapt to workpieces of various shapes without the need for frequent replacement of fixtures.

[0016] By setting up a pressure sensor, the clamping force between the clamping block and the workpiece can be monitored in real time, so as to accurately adjust the movement of the moving component to ensure that the clamping force is always in the optimal range suitable for the shape of the workpiece, thereby improving the stability of the clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the clamping assembly for CNC bending.

[0018] Figure 2 Schematic diagram of the upper clamping part structure.

[0019] Figure 3 Schematic diagram of the drive motor structure.

[0020] Figure 4 Schematic diagram of the pressure sensor structure.

[0021] Figure 5 This is a top view of the mobile component structure.

[0022] [reference numerals]

[0023] 1. Base; 2. Displacement sensor; 3. Side clamping part; 4. Electric telescopic rod; 5. Mounting frame; 6. Upper clamping part; 7. Moving assembly; 31. Mounting plate; 32. Drive motor; 33. Rotating block; 34. Clamping block; 35. Buffer pad; 36. Pressure sensor; 61. Cylinder; 62. Lower pressure plate; 63. Suction cup; 71. Placement slot; 72. Bidirectional motor; 73. Screw; 74. Slider.

[0024] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the appended claims. DETAILED DESCRIPTION

[0025] The following describes in detail a CNC bending clamping assembly and a bending machine provided by the present invention, in conjunction with the accompanying drawings and specific embodiments. It is also noted that, in order to provide a more detailed description, the following embodiments are best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement certain known technologies. Furthermore, the accompanying drawings are only for the purpose of describing the embodiments in more detail and are not intended to limit the present invention in any specific way.

[0026] like Figure 1 - Figure 5 As shown, an embodiment of the present invention provides a clamping assembly for CNC bending, comprising: a base 1; a mounting frame 5, which is arranged on the base 1 and is L-shaped; an upper clamping portion 6, which is arranged on the mounting frame 5; a moving assembly 7, which is arranged on the base 1 and is located on the rear side of the mounting frame 5; two electric telescopic rods 4, which are slidably arranged on the base 1, and the two electric telescopic rods 4 are symmetrically arranged along the longitudinal center line of the base 1; two side clamping portions 3, which are slidably arranged on the base 1; one end of the electric telescopic rod 4 is connected to the moving assembly 7, and the other end is connected to the side clamping portion 3.

[0027] By setting up the electric telescopic rod 4, the position of the side clamping part 3 can be accurately adjusted according to different workpiece sizes and shapes. The electric telescopic rod 4 is extended to drive the side clamping part 3 to move forward, and is retracted to drive the side clamping part 3 to move backward.

[0028] The upper clamping part 6 includes: multiple cylinders 61, which are arranged on the installation frame 5; a lower pressure plate 62, which is movably arranged in the installation frame 5; the output end of the cylinder 61 passes through the installation frame 5 and is connected to the lower pressure plate 62; and multiple suction cups 63, which are arranged on the lower pressure plate 62.

[0029] By setting up a suction cup 63, the outer layer of the suction cup 63 uses a soft material to increase the contact area with the workpiece surface, and the inner layer uses a hard material to maintain the overall structural strength. At the same time, it can utilize the air pressure difference to tightly adsorb on the upper surface of the workpiece. The number of multiple suction cups 63 can be selected according to actual needs. The setting of multiple suction cups 63 can make the force on the upper surface of the workpiece more uniform.

[0030] The apparatus further comprises a displacement sensor 2 mounted on the mounting frame 5. The displacement sensor 2 monitors the position of the workpiece within the mounting frame 5 in real time. When the displacement sensor 2 detects that the workpiece is too high, the extension length of the cylinder 61 of the upper clamping portion 6 is adjusted to allow the suction cup 63 to better adhere to the upper surface of the workpiece. When the workpiece is detected to be offset, the position of the side clamping portion 3 is adjusted via the movable assembly 7 to ensure accurate and stable clamping.

[0031] The moving assembly 7 includes a receiving slot 71 disposed on the base 1 and located at the rear of the mounting frame 5; and a bidirectional motor 72 disposed at the center of the receiving slot 71. The bidirectional motor 72 is configured such that its output terminal is fixed to a lead screw 73. When the motor 72 is operated by an external current, the output terminal generates rotational power, which drives the lead screw 73 to generate synchronous motion, providing the power source for the rotation of the lead screw 73.

[0032] The motor 72 further comprises two screw rods 73, one mounted on each side of the output terminal of the bidirectional motor 72; a slider 74, threadedly mounted on the screw rods 73; and a top portion of the slider 74 connected to the electric telescopic rod 4. By providing the sliders 74, when the bidirectional motor 72 drives the screw rods 73 to rotate, the sliders 74 can move precisely along the screw rods 73. This precise movement control ensures that the electric telescopic rod 4 and the side clamping portion 3 accurately reach the desired position, accommodating workpieces of varying sizes and shapes.

[0033] The side clamping portion 3 includes: a mounting plate 31, which is slidably mounted on the base 1 and is L-shaped; the mounting plate 31 is connected to the output end of the electric telescopic rod 4; a drive motor 32, which is mounted on the mounting plate 31; and a rotating block 33, which is rotatably mounted below the mounting plate 31; the output end of the drive motor 32 passes through the mounting plate 31 and is connected to the rotating block 33.

[0034] The device further comprises: a plurality of clamping blocks 34 disposed on the rotating block 33; a pressure sensor 36 disposed within the clamping blocks 34; and a buffer pad 35 disposed on the clamping blocks 34. By providing multiple clamping blocks 34, the driving motor 32 drives the rotating block 33 to rotate, thereby rotating the clamping blocks 34. The corresponding clamping blocks 34 are rotated according to the shape of the side of the workpiece. Each clamping block 34 has a different shape, and the clamping blocks 34 can be designed in an elongated or inclined shape. The buffer pad 35 prevents the clamping blocks 34 from directly contacting the workpiece surface during the clamping process, thereby effectively preventing scratches on the workpiece surface.

[0035] A bending machine comprises any one of the above-mentioned clamping assemblies for numerically controlled bending. The bending machine in the above-mentioned implementation is a conventional technical means in the prior art and will not be described in detail here.

[0036] The technical solution provided by the present invention is to place the workpiece on the base 1, push the workpiece to move until it contacts the mounting frame 5, and use the external controller to start the cylinder 61 to run. The cylinder 61 extends and drives the lower pressure plate 62 to move downward until the suction cup 63 contacts the surface of the workpiece, thereby clamping; after the electric telescopic rod 4 is extended to a suitable distance, the external controller is used to start the bidirectional motor 72 to run, drive the screw rod 73 to rotate, so that the slider 74 moves, thereby moving the electric telescopic rod 4, so that the clamping block 34 contacts the side of the workpiece, and then adjust the movement of the clamping block 34 through the pressure sensor 36 to ensure that the clamping force is appropriate, thereby clamping; when it is necessary to clamp according to the different shapes of the side of the workpiece, the external controller is used to start the drive motor 32 to drive the rotating block 33 to rotate, and rotate the clamping block 34 so that its matching clamping block 34 corresponds to the side of the workpiece, and repeat the clamping operation.

[0037] This invention encompasses any alternatives, modifications, equivalents, and solutions that do not depart from the spirit and scope of this invention. While specific details are described in detail in the preferred embodiments of this invention to provide a thorough understanding, those skilled in the art will be able to fully understand this invention without these details. Furthermore, to avoid unnecessary confusion regarding the essence of this invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A clamping assembly for CNC bending, characterized in that: include: Base (1); A mounting frame (5) is arranged on the base (1), and the mounting frame (5) is L-shaped; An upper clamping portion (6) is provided on the mounting frame (5); A moving assembly (7) is arranged on the base (1) and is located at the rear side of the mounting frame (5); Two electric telescopic rods (4) are slidably arranged on the base (1), and the two electric telescopic rods (4) are symmetrically arranged along the longitudinal center line of the base (1); Two side clamping parts (3) are slidably arranged on the base (1); One end of the electric telescopic rod (4) is connected to the moving assembly (7), and the other end is connected to the side clamping portion (3).

2. The clamping assembly for CNC bending according to claim 1, characterized in that: The upper clamping portion (6) comprises: A plurality of cylinders (61) are arranged on the mounting frame (5); A lower pressing plate (62) movably arranged in the mounting frame (5); The output end of the cylinder (61) passes through the mounting frame (5) and is connected to the lower pressing plate (62); A plurality of suction cups (63) are arranged on the lower pressing plate (62).

3. The clamping assembly for CNC bending according to claim 1, characterized in that: Also includes: The displacement sensor (2) is arranged on the mounting frame (5).

4. The clamping assembly for CNC bending according to claim 1, characterized in that: The moving assembly (7) comprises: A placement slot (71) is provided on the base (1) and is located at the rear side of the installation frame (5); A bidirectional motor (72) is arranged at the center of the placement slot (71).

5. The clamping assembly for CNC bending according to claim 4, characterized in that: Also includes: Two screw rods (73) are respectively arranged on the output ends on both sides of the bidirectional motor (72); a slider (74) threadedly disposed on the screw rod (73); The top of the slider (74) is connected to the electric telescopic rod (4).

6. The clamping assembly for CNC bending according to claim 1, characterized in that: The side clamping portion (3) comprises: A mounting plate (31) is slidably mounted on the base (1), and the mounting plate (31) is L-shaped; The mounting plate (31) is connected to the output end of the electric telescopic rod (4); A driving motor (32) is arranged on the mounting plate (31); A rotating block (33) is rotatably arranged below the mounting plate (31); The output end of the driving motor (32) passes through the mounting plate (31) and is connected to the rotating block (33).

7. The clamping assembly for CNC bending according to claim 6, characterized in that: Also includes: A plurality of clamping blocks (34) are arranged on the rotating block (33); a pressure sensor (36) disposed within the clamping block (34); A buffer pad (35) is provided on the clamping block (34).

8. A bending machine, characterized in that: The invention comprises a clamping assembly for CNC bending according to any one of claims 1 to 7.

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