A bending positioning device for numerical control bending machine

Abstract

The utility model discloses a kind of bending positioning device for numerical control bending machine, including machine table, the machine table slidingly connected with positioning module, and it is adapted to the linear module of drive positioning clamping station along the length direction of machine table movement, the positioning module includes positioning clamping station, the positioning clamping station is symmetrically provided with two groups of positioning clamping jaw and it is adapted to drive two groups of positioning clamping jaw mutually far away or close retractable component.The utility model realizes the clamping, limiting and stepping conveying of corrugated board in the bending process by the cooperation of positioning clamping jaw, limiting baffle, electromagnet and linear module, retractable component, reduces worker workload.By setting limiting baffle, electromagnet and spring structure on lower positioning plate, it can ensure that the length direction of board and the moving direction of positioning module are consistent, effectively ensure the perpendicularity of corrugated pattern and the left and right side edges of board after bending and pressing, thereby significantly improve the production quality of corrugated board pattern.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal bending technology, specifically to a bending positioning device for a CNC bending machine. Background Technology

[0002] In the production of corrugated sheets, bending processes are currently mainly used for bending the sheets using pressure rollers and bending. For scenarios with lower precision requirements and large-scale mass production, roll forming technology is typically used. This involves continuously bending thin sheets in batches using roll forming equipment and conveyor lines to create the corrugated texture. However, roll forming often struggles to meet the processing precision requirements when dealing with high precision or thick sheets, resulting in poor forming quality.

[0003] For bending scenarios requiring high precision or involving relatively thick sheet metal, CNC bending machines are commonly used in the industry. CNC bending machines can precisely press each corrugated pattern. However, in practice, bending positioning is often done manually. Workers need to feed the sheet metal into the bending machine step by step; that is, after each bend is completed, the sheet metal needs to be manually fed into position, which is quite inconvenient.

[0004] Therefore, there is an urgent need to design a bending positioning device for CNC bending machines that can reduce the workload of workers and meet the requirements of the bending and pressing process of corrugated plates. Utility Model Content

[0005] The purpose of this utility model is to provide a bending positioning device for a CNC bending machine. This bending positioning device can realize the positioning and conveying of the plate, effectively ensuring the perpendicularity of the corrugated pattern to the left and right edges of the plate after bending and pressing, thereby improving the production quality of the corrugated plate pattern, reducing the workload of workers, and meeting the needs of the bending and pressing process of corrugated plates.

[0006] The technical solution adopted by this utility model to solve the above problems is: a bending positioning device for a CNC bending machine, including a machine base, wherein a positioning module is slidably connected to the machine base, and a linear module is adapted to drive the positioning clamp to move along the length direction of the machine base. The positioning module includes a positioning clamp, wherein two sets of positioning jaws are symmetrically arranged on the positioning clamp and are adapted to a telescopic component that drives the two sets of positioning jaws to move away from or closer to each other.

[0007] Preferably, the positioning gripper includes a thin cylinder, a lower positioning plate, and an upper positioning plate. The cylinder body of the thin cylinder is fixedly mounted on the lower positioning plate, and the piston rod of the thin cylinder is connected and fixedly mounted to the upper positioning plate.

[0008] Preferably, the lower positioning plate is slidably provided with a limit baffle and fixedly provided with two sets of electromagnets. Both ends of the two sets of electromagnets and the limit baffle are provided with springs, and the limit baffle is provided with a magnetic block. The lower positioning plate is provided with a limit groove that is adapted to slide with the limit baffle.

[0009] Preferably, the telescopic component includes a dual-output shaft geared motor, two sets of screws, and two sets of slides. The two sets of screws are respectively shaft-connected to both ends of the dual-output shaft geared motor, and the two sets of slides are respectively threaded onto the two sets of screws. The positioning clamp is provided with a sliding groove that is adapted to the sliding of the slides.

[0010] Preferably, the linear module includes a motor, a lead screw, and a slide table, wherein the lead screw is fixedly connected to the motor shaft, the slide table is sleeved on the lead screw, the positioning module is fixedly mounted on the slide table, and the machine tool is provided with a guide groove adapted to the sliding of the slide table.

[0011] Preferably, a set of support platforms is provided at both the front and rear of the machine tool, and rollers are rotatably mounted on both the positioning clamp and the support platforms.

[0012] Compared with the prior art, this utility model has the following advantages and effects:

[0013] This invention utilizes the coordinated operation of positioning grippers, limiting baffles, electromagnets, linear modules, and telescopic components to achieve clamping, limiting, and step-by-step conveying of corrugated sheet metal during the bending process, reducing worker workload. By setting limiting baffles, electromagnets, and springs on the lower positioning plate, it ensures that the length direction of the sheet metal is consistent with the movement direction of the positioning module, effectively guaranteeing the perpendicularity of the corrugated pattern to the left and right edges of the sheet metal after bending and pressing, thereby significantly improving the production quality of the corrugated sheet pattern. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a bending positioning device for a CNC bending machine according to an embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the structure of a bending positioning device for a CNC bending machine according to an embodiment of the present invention.

[0016] Figure 3 yes Figure 2 A magnified schematic diagram of the structure at the marked location.

[0017] Figure 4 This is a structural schematic diagram of the positioning module according to an embodiment of the present invention.

[0018] Figure 5 This is a schematic diagram illustrating the working principle of the positioning gripper and limiting baffle in an embodiment of this utility model.

[0019] Figure Numbers: Body 11, Positioning Module 12, Linear Module 13, Positioning Clamping Platform 14, Positioning Claw 15, Telescopic Component 16, Thin Cylinder 17, Lower Positioning Plate 18, Upper Positioning Plate 19, Limiting Baffle 21, Electromagnet 22, Spring 23, Magnetic Block 24, Limiting Groove 25, Dual Output Shaft Gear Motor 26, Screw 27, Slide 28, Slide Groove 29, Motor 31, Lead Screw 32, Slide Table 33, Guide Groove 34, Support Platform 35, Roller 36, Bolt 37, Shaft Cylinder 38. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0021] Example:

[0022] See Figure 1 - Figure 5 This embodiment relates to a bending positioning device for a CNC bending machine, specifically used in the bending process of corrugated plates to achieve automatic positioning and conveying of the plates, thereby reducing the workload of workers. Specifically, it includes: a machine base, on which a positioning module 12 is slidably connected, and a linear module 13 adapted to drive a positioning clamping platform 14 to move along the length of the machine base. The positioning module 12 includes a positioning clamping platform 14, which has two sets of positioning grippers 15 symmetrically arranged and adapted to a telescopic component 16 that drives the two sets of positioning grippers 15 to move away from or closer to each other.

[0023] Specifically, in this embodiment, when performing corrugated sheet bending, the sheet is first placed on the machine table and positioned by the positioning module 12. The distance between the two sets of grippers is adjusted by the telescopic component 16 to accommodate the width of the sheet, and the grippers clamp the two sides of the sheet. Finally, the sheet is clamped, completing the initial positioning of the sheet. Subsequently, the linear module 13 drives the positioning clamping table 14 to move the sheet along the length of the machine table according to the bending process requirements, gradually feeding the sheet into the CNC bending machine to achieve bending and pressing of each texture. Compared with the traditional method of manually feeding and pressing the corrugated texture of the bent sheet, this invention eliminates the need for manual positioning and feeding, significantly reducing the workload of workers. It should be noted that the sheet material in this invention is a continuous material (roll material is continuously output after being flattened), and a cutting process is required after the texture is bent and pressed.

[0024] This embodiment uses positioning grippers 15 to release and clamp the sheet metal. Specifically, the positioning grippers 15 include a thin cylinder 17, a lower positioning plate 18, and an upper positioning plate 19. The cylinder body 20 of the thin cylinder 17 is fixedly mounted on the lower positioning plate 18, and the piston rod 21 of the thin cylinder 17 is connected and fixed to the upper positioning plate 19. The thin cylinder 17 is adapted to an existing pneumatic system (composed of an air source device, an actuator, a control element, and auxiliary elements, not shown in the figure). When the thin cylinder 17 is vented, the piston rod 21 extends, causing the upper positioning plate 19 to move upward and away from the lower positioning plate 18. At this time, one edge of the sheet metal is placed on the lower positioning plate 18. When the thin cylinder 17 is vented in the opposite direction, the piston rod 21 retracts, causing the upper positioning plate 19 to move downward and closer to the lower positioning plate 18, clamping the edge of the sheet metal. The two sets of positioning grippers 15 clamp the left and right edges of the sheet metal respectively, achieving the positioning of the sheet metal.

[0025] During the actual production and processing of corrugated sheets, the travel of the linear module 13 driving the positioning module 12 is limited. Therefore, the board needs to be positioned multiple times by the positioning module 12. If the length direction of the board and the moving direction of the positioning module 12 are not kept in the same straight line during positioning, that is, the board swings left and right during positioning and causes an angular deviation, the corrugated pattern after the board is bent and pressed cannot be perpendicular to the left and right edges of the board, which affects the production quality of the corrugated pattern. In this embodiment, to address the issue of the corrugated board's texture not remaining perpendicular to the left and right edges after bending and pressing (i.e., improving the vertical accuracy of the corrugated texture), a limiting baffle 22 is slidably mounted on the lower positioning plate 18, and two sets of electromagnets 23 are fixedly mounted. Springs 24 are installed at both ends of the two sets of electromagnets 23 and the limiting baffle 22. A magnetic block 25 is mounted on the limiting baffle 22, and the lower positioning plate 18 has a limiting groove 26 that slides and adapts to the limiting baffle 22. This achieves lateral limiting of the board material, ensuring that the length direction of the board material is consistent with the moving direction of the positioning module 12. (See also...) Figure 5In this embodiment, the lateral limiting of the plate material needs to be done before the upper positioning plate 19 and the lower positioning plate 18 clamp the plate material. The magnetic block 25 is a permanent magnet with N and S poles at its two ends, respectively. When the electromagnet 23 is energized with DC in the forward direction, the electromagnet 23 attracts the magnetic block 25, driving the magnetic block 25 on the limiting baffle 22 to move closer to the electromagnet 23, overcoming the elastic force of the spring 24. At this time, the limiting baffle 22 does not contact the edge of the plate material. When the electromagnet 23 is energized with DC in the reverse direction, the electromagnet 23 repels the magnetic block 25, driving the limiting baffle 22 to move away from the electromagnet 23, tightly fitting the side of the plate material for limiting. By applying a pushing force to both sides of the plate by the limiting baffle 22, when the upper positioning plate 19 and the lower positioning plate 18 release the plate (the plate is clamped and fixed by the bending machine), when the linear module 13 drives the positioning module 12 to move in the opposite direction along the plate conveying direction (the moving direction of the positioning module 12), the limiting baffle 22 always maintains close pressure on both sides of the plate, so that the length direction of the plate is always consistent with its conveying direction, ensuring the perpendicularity of the corrugated pattern to the left and right edges of the plate after bending and pressing, thereby improving the production quality of the corrugated plate pattern.

[0026] In this embodiment, the telescopic component 16 includes a dual-output shaft geared motor 27, two sets of screws 28, and two sets of slides 29. The two sets of screws 28 are respectively shaft-connected to both ends of the dual-output shaft geared motor 27, and the two sets of slides 29 are respectively threaded onto the two sets of screws 28. The positioning clamping platform 14 is provided with a sliding groove 30 that is adapted to slide the slides 29. When the dual-output shaft geared motor 27 rotates, it drives the two sets of screws 28 to rotate synchronously. Due to the threaded engagement between the screws 28 and the slides 29, the slides 29 move along the axial direction of the screws 28, thereby driving the two sets of pneumatic grippers on the positioning clamping platform 14 to move closer or further apart, realizing the clamping adaptation for plates of different widths, improving the versatility of the device, and meeting the processing requirements of corrugated plates of different widths.

[0027] In this embodiment, the linear module 13 includes a motor 31, a lead screw 32, and a slide 33. The lead screw 32 is axially fixed to the motor 31, and the slide 33 is sleeved on the lead screw 32. The positioning module 12 is fixedly mounted on the slide 33, and the machine tool has a guide groove 34 that slides and adapts to the slide 33. The motor 31 drives the lead screw 32 to rotate. Due to the threaded fit between the lead screw 32 and the slide 33 and the guiding effect of the guide groove 34 on the slide 33, the slide 33 moves smoothly along the length of the machine tool, driving the positioning module 12 to move precisely towards one side of the bending machine, realizing the gradual feeding of the sheet metal and ensuring the continuous and stable bending process.

[0028] In this embodiment, a set of support platforms 35 are provided at both the front and rear of the machine base. Rollers 36 are rotatably mounted on both the positioning clamp 14 and the support platforms 35. During the sheet material conveying process, the rollers 36 contact the bottom of the sheet material. When the sheet material moves, the rollers 36 rotate under the influence of the sheet material, reducing the resistance during conveying. The support platforms 35 are connected to the upper surface of the machine base by four sets of bolts 37. The bolts 37 are rotatably mounted inside the shaft cylinder 38 below the support platform 35, and the lower end of the bolts 37 is threaded into the screw holes on the machine base. The height of the support platforms 35 can be adjusted by tightening the bolts 37 to accommodate the height of the sheet material when entering and leaving the machine base, facilitating the installation and debugging of the equipment on-site.

[0029] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.

Claims

1. A bending positioning device for a CNC bending machine, characterized in that, The machine includes a machine base, which is slidably connected to a positioning module and adapted to a linear module that drives the positioning clamp to move along the length of the machine base. The positioning module includes a positioning clamp, which is symmetrically provided with two sets of positioning jaws and is adapted to a telescopic component that drives the two sets of positioning jaws to move away from or closer to each other. The telescopic component includes a dual-output shaft geared motor, two sets of screws, and two sets of slides. The two sets of screws are respectively shaft-connected to both ends of the dual-output shaft geared motor, and the two sets of slides are respectively threaded onto the two sets of screws. The positioning clamp is provided with a sliding groove that is adapted to slide the slides.

2. The bending positioning device for a CNC bending machine according to claim 1, characterized in that: The positioning gripper includes a thin cylinder, a lower positioning plate, and an upper positioning plate. The cylinder body of the thin cylinder is fixedly mounted on the lower positioning plate, and the piston rod of the thin cylinder is connected and fixedly mounted to the upper positioning plate.

3. The bending positioning device for a CNC bending machine according to claim 2, characterized in that: The lower positioning plate is slidably provided with a limit baffle and fixedly provided with two sets of electromagnets. Both ends of the two sets of electromagnets and the limit baffle are provided with springs, and the limit baffle is provided with a magnetic block. The lower positioning plate is provided with a limit groove that is adapted to slide with the limit baffle.

4. The bending positioning device for a CNC bending machine according to claim 1, characterized in that: The linear module includes a motor, a lead screw, and a slide. The lead screw is fixedly connected to the motor shaft, the slide is sleeved on the lead screw, the positioning module is fixedly mounted on the slide, and the machine tool has a guide groove adapted to slide the slide.

5. A bending positioning device for a CNC bending machine according to claim 1, characterized in that: The machine tool is equipped with a set of support platforms at both the front and rear, and rollers are rotatably mounted on both the positioning clamp and the support platforms.

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