Numerical control bending and arc bending equipment

Abstract

The utility model relates to the technical field of metal plate or profile bending, and particularly discloses numerical control bending and arc bending equipment which comprises a rack, a plurality of sets of feeding end material guide wheel assemblies, a bending device, a feeding end plate pressing device and a feeding device, each feeding end material guide wheel assembly comprises a bearing seat, and the bearing seats are fixedly installed on the upper surface of a table top; a mounting groove is formed in the upper end of the bearing seat, a bearing rotating in the plate conveying direction is mounted in the mounting groove, multiple sets of needle bearings are mounted at the positions, located at the top ends of the two opposite sides of the mounting groove, of the bearing seat correspondingly, and the needle bearings are rotationally mounted on the bearing seat; in the process that a metal plate enters the bending device from the feeding end, the left side face and the right side face of the metal plate are in rolling contact with the needle bearings correspondingly, and the oppositely-arranged ball bearings not only play a role in guiding and conveying the metal plate, but also play a role in limiting the left side face and the right side face of the metal plate, so that the metal plate is prevented from inclining; and the metal plate is in a horizontal state.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal bending technology, specifically to a CNC bending and arc bending equipment. Background Technology

[0002] Industries such as light boxes, advertising, lighting fixtures, and furniture edge banding require bent and curved metal sheets. The curved shaping of these sheets typically requires bending and arc-forming equipment. Currently, existing bending and arc-forming equipment suffers from the following drawbacks: 1. Existing equipment struggles to ensure the metal sheets are level, easily damaging the raw materials; 2. The bending angles of existing equipment cannot meet market demands; 3. Existing equipment designs are aesthetically unappealing and lack elegance. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a CNC bending and arc bending equipment to solve the problem that existing bending and arc bending equipment cannot ensure the level of metal sheets when bending and arc forming metal sheets, and is prone to damaging raw materials.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] This application provides a CNC bending and arc bending device, including:

[0006] A frame, the top of which is provided with a table, the table including an inlet end and an outlet end arranged opposite to each other;

[0007] Multiple sets of feed end guide roller assemblies are disposed on the table surface near one end of the feed end. The multiple sets of feed end guide roller assemblies are evenly spaced along the conveying direction of the plate. Each set of feed end guide roller assemblies includes a bearing seat, which is fixedly installed on the upper surface of the table surface. The upper end of the bearing seat is provided with a mounting groove, and a bearing that rotates along the conveying direction of the plate is installed in the mounting groove. Multiple sets of needle roller bearings are respectively installed on the bearing seat at the top of opposite sides of the mounting groove. The needle roller bearings are rotatably mounted on the bearing seat and are used for conveying and guiding the plate.

[0008] A bending device is disposed on the table near the discharge end, and the bending device is used to bend the sheet metal into shape.

[0009] A feeding end plate clamping device is installed on the table between the feeding end guide wheel assembly and the bending device. The feeding end plate clamping device is used to clamp the plate from the side.

[0010] A feeding device is installed on the platform between the plate pressing device and the bending device at the feeding end. The feeding device is used to transport the plate from one end of the feeding end to one end of the discharging end.

[0011] Furthermore, the bending device includes a drive assembly, which is fixedly mounted on the frame. The output end of the drive assembly is fixedly connected to a central shaft. The central shaft is rotatably mounted on the table. A central shaft mold is fixedly mounted on the central shaft. A swing arm is fixedly mounted on the central shaft. A first driven mold is mounted on the other end of the swing arm relative to the central shaft mold. The first driven mold and the swing arm form a sliding connection that allows them to move closer to or away from the central shaft mold. The first driven mold is connected to a drive cylinder.

[0012] Furthermore, the feeding device includes an active mold, which is fixedly mounted on a drive shaft. The drive shaft is rotatably mounted on the frame. The bottom end of the drive shaft is connected to a drive unit. A second driven mold is also provided on the opposite side of the active mold. The second driven mold is rotatably mounted on a side pressure roller fixing plate. The side pressure roller fixing plate and the table form a sliding connection that allows it to move closer to or away from the active mold. The side pressure roller fixing plate is fixedly connected to a side pressure cylinder.

[0013] Furthermore, the active mold and the second driven mold are each in two sets, and the two sets of active molds are evenly spaced on the table along the conveying direction of the plate.

[0014] Furthermore, the drive unit includes a servo motor, a main gear is fixedly mounted on the output end of the servo motor, and driven gears are fixedly mounted on the bottom ends of a pair of drive shafts, with the pair of driven gears meshing with the main gear respectively.

[0015] Furthermore, a keyboard support plate is installed on the outer side of the feed end of the frame.

[0016] Furthermore, the corners of the frame are rounded.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. By using the above-mentioned CNC bending and arc bending equipment, and utilizing multiple sets of evenly spaced feed end guide roller assemblies on the table, the left and right sides of the metal sheet are in rolling contact with the needle roller bearings during the process of the metal sheet entering the bending device from the feed end. The ball bearings arranged opposite to each other not only guide and convey the metal sheet, but also limit the left and right sides of the metal sheet to prevent the metal sheet from tilting and ensure that the metal sheet is in a horizontal state.

[0019] 2. The bearing at the bottom of the mounting groove makes rolling contact with the bottom of the metal sheet, which reduces the resistance during the conveying process of the metal sheet and improves the smoothness of the conveying process.

[0020] 3. The bending device has a first driven mold installed on the other end of the swing arm relative to the central axis. The first driven mold can move closer to or away from the central axis. When bending an arc, the two work together to solve the defect of insufficient bending angle. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the CNC bending and arc bending equipment in the embodiments of this application.

[0022] Figure 2 This is a schematic diagram of the working state of the CNC bending and arc bending equipment in the embodiments of this application when bending metal sheets.

[0023] Figure 3 This is a three-dimensional structural diagram of the bending device in the embodiments of this application.

[0024] Figure 4 This is a three-dimensional structural diagram of the feeding end plate clamping device in the embodiments of this application.

[0025] Figure 5 for Figure 2 A magnified schematic diagram of the structure at point A in the diagram.

[0026] Figure 6 This is a three-dimensional structural diagram of the feeding device in the embodiments of this application.

[0027] In the picture:

[0028] 10-CNC bending and arc bending equipment, 100-Frame, 101-Table, 102-Feed end, 103-Discharge end, 200-Keyboard support plate, 300-Feed end guide wheel assembly, 301-Bearing seat, 302-Mounting groove, 303-Bearing, 304-Needle roller bearing, 400-Feed end sheet metal clamping device, 401-Feed end fixed pressure plate, 402-Feed end movable pressure plate, 403 - Cylinder, 500 - Feeding device, 501 - Drive unit, 502 - Drive shaft, 503 - Main gear, 504 - Driven gear, 505 - Driven mold, 506 - Second driven mold, 507 - Side pressure cylinder, 600 - Bending device, 601 - Central shaft mold, 602 - Drive assembly, 603 - First driven mold, 604 - Swing arm, 605 - Drive cylinder, 700 - Metal sheet. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0030] See appendix Figure 1 To be continued Figure 2 As shown, this embodiment provides a CNC bending and arc bending equipment 10, including a frame 100, multiple sets of feed end guide roller assemblies 300, a bending device 600, a feed end plate pressing device 400, and a feeding device 500. The feed end guide roller assembly 300, the feed end plate pressing device 400, the feeding device 500, and the bending device 600 are sequentially installed on the frame 100 along the conveying direction of the metal plate 700.

[0031] Continue to refer to the appendix Figure 1 To be continued Figure 2 As shown, a table 101 is provided at the upper end of the frame 100. The table 101 has two opposite ends, namely a feeding end 102 and a discharging end 103. The feeding end 102 is the end where the metal sheet 700 enters the table 101, and the discharging end 103 is the end where the metal sheet 700 is removed from the table 101 after bending and forming. To improve the aesthetics of the frame 100, rounded corners are provided at all four corners. Furthermore, a keyboard support plate 200 is installed on the frame 100 outside the feeding end 102.

[0032] Continue to refer to the appendix Figure 1 and attached Figure 2 As shown, multiple sets of feed end guide roller assemblies 300 are arranged on the table 101 and are evenly fed along the feeding direction of the metal sheet 700 from one end near the feed end 102. The feed end guide roller assemblies 300 are used to guide the conveying of the metal sheet 700 and prevent the metal sheet 700 from tilting during the conveying process, ensuring that it is in a horizontal state. In this embodiment, there is a pair of feed end guide roller assemblies 300. It can be understood that the number of feed end guide roller assemblies 300 can be flexibly set, such as according to the distance between the bending device 600 and the feed end 101 on the table 101. If the installation position of the bending device 600 is far from the position of the feed end 101, then the number of feed end guide roller assemblies 300 should preferably be multiple; if it is short, then the number of feed end guide roller assemblies 300 should preferably be small.

[0033] See attached document Figure 2 and attached Figure 4As shown, in this embodiment, the feed end guide wheel assembly 300 includes a bearing seat 301, which is fixedly installed on the upper surface of the table 101. The upper end of the bearing seat 301 is provided with a mounting groove 302, which is an open groove shape on the bearing seat 301 parallel to the conveying direction of the metal sheet 700. A bearing 303, which rotates along the conveying direction of the metal sheet 700, is installed in the mounting groove 302. The bearing 303 is used to contact the bottom surface of the metal sheet 700, providing support. Since the bearing 303 is rotatably installed in the mounting groove 302, the bearing 303 at the bottom can also guide the conveying of the metal sheet 700.

[0034] Continue to refer to the appendix Figure 4 As shown, multiple sets of needle roller bearings 304 are respectively installed on the bearing housing 301 at the top of opposite sides of the mounting groove 302. The needle roller bearings 304 are rotatably mounted on the bearing housing 301 and are used for conveying and guiding the plate.

[0035] Combined with reference to the appendix Figure 4 and attached Figure 5 As shown, during the process of the metal sheet 700 entering the bending device 600 from the feed end, the left and right sides of the metal sheet 700 are in rolling contact with the needle roller bearings 304 respectively. The ball bearings arranged opposite each other not only guide and convey the metal sheet 700, but also limit the left and right sides of the metal sheet 700 to prevent the metal sheet 700 from tilting and ensure that the metal sheet 700 is in a horizontal state.

[0036] See attached document Figure 1 and attached Figure 2 As shown, the feed end plate clamping device 400 is used to clamp the plate from the side. That is, when the metal plate 700 is bent, in order to prevent the metal plate 700 from shaking, the feed end plate clamping device 400 clamps the metal plate 700.

[0037] Specifically, in this embodiment, the feeding end plate clamping device 400 includes a feeding end fixed pressure plate 401, which is fixedly installed on the table 101. The feeding end fixed pressure plate 401 is located adjacent to one side of the metal plate 700 conveying path (or channel). On the other side opposite to the feeding end fixed pressure plate 401, a feeding end movable pressure plate 402 is provided. The feeding end movable pressure plate 402 can move relative to the table 101, that is, the feeding end movable pressure plate 402 can move closer to or away from the feeding end fixed pressure plate 401. The power of the feeding end movable pressure plate 402 is provided by a cylinder 403.

[0038] See attached document Figure 1 and attached Figure 6As shown, the feeding device 500 in this embodiment provides power for the conveying and movement of the metal sheet 700. The feeding device 500 includes an active mold 505, which is fixedly mounted on a drive shaft 502. The drive shaft 502 is rotatably mounted on the frame 100, and its bottom end is connected to a drive unit 501. A second driven mold 506 is also provided on the opposite side of the active mold 505. The second driven mold 506 is rotatably mounted on a side pressure roller fixing plate. The side pressure roller fixing plate and the table surface 101 form a sliding connection that allows it to move closer to or away from the active mold 505. The side pressure roller fixing plate is fixedly connected to a side pressure cylinder 507. The feeding device 500 is equipped with a cooperating active mold 505 and a second driven mold 506. By adjusting the movement of the second driven mold 506, the gap between the active mold 505 and the second driven mold 506 can be changed. Before the metal sheet 700 is placed, the movement of the second driven mold 506 is adjusted to increase the gap between the active mold 505 and the second driven mold 506 so that the metal sheet 700 can be placed. When it is necessary to convey the metal sheet 700, the second driven mold 506 is adjusted to reduce the gap between the active mold 505 and the second driven mold 506, so that the outer surfaces of the active mold 505 and the second driven mold 506 roll into contact with the side of the metal profile, thus driving the metal sheet 700 forward.

[0039] In some embodiments, the active mold 505 and the second driven mold 506 are each in two sets, and the two sets of active molds 505 are evenly spaced on the table 101 along the conveying direction of the sheet metal. By providing two sets of active molds 505 and second driven molds 506 that cooperate with each other, the stability of the sheet metal 700 during conveying can be improved, and the sheet metal 700 is less prone to slippage during conveying. (Refer to the attached diagram.) Figure 6 As shown, in some embodiments, the drive unit 501 includes a servo motor, with a main gear 503 fixedly mounted on the output end of the servo motor, and driven gears 504 fixedly mounted on the bottom ends of a pair of drive shafts 502. The pair of driven gears 504 mesh with the main gear 503 respectively. By using gear meshing, the rotational speed of the pair of drive molds 505 can be kept consistent, which is more conducive to the conveying of the metal sheet 700, and the metal sheet 700 is less likely to slip back and forth during conveying.

[0040] See attached document Figure 1 and attached Figure 3As shown, the bending device 600 in this embodiment includes a drive assembly 602 (e.g., a motor). The drive assembly 602 is fixedly mounted on the frame 100. The output end of the drive assembly 602 is fixedly connected to a central shaft. The central shaft is rotatably mounted on a table 101. A central shaft mold 601 is fixedly mounted on the central shaft, and a swing arm 604 is fixedly mounted on the central shaft. A first driven mold 603 is mounted on the other end of the swing arm 604 relative to the central shaft mold 601. The upper and lower ends of the first driven mold 603 are respectively slidably connected to the swing arm 604, allowing it to move closer to or away from the central shaft mold 601. The first driven mold 603 is connected to a drive cylinder 605. When bending the metal sheet 700 into an arc shape, the drive cylinder 605 drives the first driven mold 603 to move closer to one side of the central shaft mold 601, pressing the metal profile between them. The drive assembly 602 then drives the central shaft to rotate, thereby achieving the bending and arc shaping of the metal profile.

[0041] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A CNC bending and arc bending equipment, characterized in that, include: A frame, the top of which is provided with a table, the table including an inlet end and an outlet end arranged opposite to each other; Multiple sets of feed end guide roller assemblies are disposed on the table surface near one end of the feed end. The multiple sets of feed end guide roller assemblies are evenly spaced along the conveying direction of the plate. Each set of feed end guide roller assemblies includes a bearing seat, which is fixedly installed on the upper surface of the table surface. The upper end of the bearing seat is provided with a mounting groove, and a bearing that rotates along the conveying direction of the plate is installed in the mounting groove. Multiple sets of needle roller bearings are respectively installed on the bearing seat at the top of opposite sides of the mounting groove. The needle roller bearings are rotatably mounted on the bearing seat and are used for conveying and guiding the plate. A bending device is disposed on the table near the discharge end, and the bending device is used to bend the sheet metal into shape. A feeding end plate clamping device is installed on the table between the feeding end guide wheel assembly and the bending device. The feeding end plate clamping device is used to clamp the plate from the side. A feeding device is installed on the platform between the plate pressing device and the bending device at the feeding end. The feeding device is used to transport the plate from one end of the feeding end to one end of the discharging end.

2. The CNC bending and arc bending equipment according to claim 1, characterized in that, The bending device includes a drive assembly, which is fixedly mounted on the frame. The output end of the drive assembly is fixedly connected to a central shaft. The central shaft is rotatably mounted on the table. A central shaft mold is fixedly mounted on the central shaft. A swing arm is fixedly mounted on the central shaft. A first driven mold is mounted on the other end of the swing arm relative to the central shaft mold. The first driven mold and the swing arm form a sliding connection that allows them to move closer to or away from the central shaft mold. The first driven mold is connected to a drive cylinder.

3. A CNC bending and arc bending equipment according to claim 1 or 2, characterized in that, The feeding device includes an active mold, which is fixedly mounted on a drive shaft. The drive shaft is rotatably mounted on the frame. The bottom end of the drive shaft is connected to a drive unit. A second driven mold is also provided on the opposite side of the active mold. The second driven mold is rotatably mounted on a side pressure roller fixing plate. The side pressure roller fixing plate and the table form a sliding connection that allows it to move closer to or away from the active mold. The side pressure roller fixing plate is fixedly connected to a side pressure cylinder.

4. The CNC bending and arc bending equipment according to claim 3, characterized in that, The active mold and the second driven mold are two sets, and the two sets of active molds are evenly spaced on the table along the conveying direction of the plate.

5. A CNC bending and arc bending equipment according to claim 4, characterized in that, The drive unit includes a servo motor, a main gear is fixedly mounted on the output end of the servo motor, and driven gears are fixedly mounted on the bottom ends of a pair of drive shafts. The pair of driven gears mesh with the main gear respectively.

6. The CNC bending and arc bending equipment according to claim 1, characterized in that, A keyboard support plate is installed on the outside of the feed end of the frame.

7. The CNC bending and arc bending equipment according to claim 1, characterized in that, The corners of the frame are rounded.

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