Automatic arc machine

Abstract

The utility model relates to the technical field of cable rack production, in particular to an automatic arc machine which comprises a supporting frame, two rotating rollers are rotationally connected between the left inner wall and the right inner wall of the supporting frame, the right end faces of the two rotating rollers penetrate through the supporting frame and are fixedly connected with transmission shafts, a belt is arranged between the two transmission shafts in a sleeved mode, and the two transmission shafts are in transmission connection through a belt. A first servo motor used for driving the transmission shaft to rotate is fixedly connected between the supporting frame and one transmission shaft. According to the scheme, the mode of bending the metal plate through the arc is adopted to replace the mode of metal plate corner bending forming in the cable rack production process in the prior art, so that the problem of too many welding spots caused by too many corners can be avoided, and the problem of jamming during cable drawing caused by insufficient roundness of the bent part of the cable rack can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of cable tray manufacturing technology, and in particular to an automatic arc forming machine. Background Technology

[0002] A cable rack is a metal housing frame that supports cables. The cables slide inside the metal housing, which helps to prevent them from getting tangled or knotted.

[0003] Most existing cable rack bends are made by welding metal plates at the bends to meet the requirements of cable rack angle changes. In practical applications, it has been found that if the number of bends is large, the roundness of the cable rack bends can be improved, but too many weld points will affect the production efficiency. If the number of bends is small, the production efficiency can be improved due to fewer weld points, but the roundness of the cable rack bends is low, and the cable is prone to jamming when it is pulled in the cable rack. For this reason, we propose an automatic arc rounding machine. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an automatic circular arc machine.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an automatic circular arc machine, including a support frame, with two rotating rollers rotatably connected between the left and right inner walls of the support frame. The right end faces of both rotating rollers penetrate the support frame and are fixedly connected to a drive shaft. A belt is sleeved between the two drive shafts, and the two drive shafts are connected via belt drive. A first servo motor for driving the drive shaft rotation is fixedly connected between the support frame and one drive shaft. The machine also includes:

[0006] The pressing roller is rotatably connected between two connecting blocks and is located on the upper side of the two rotating rollers. The upper end face of each of the two connecting blocks is fixedly connected with a screw, and the upper end face of each of the two screws passes through the support frame.

[0007] Two threaded sleeves are rotatably connected to the upper end face of the support frame through two limiting rings, and the two threaded sleeves are threaded to the circumferential surfaces of two screws respectively.

[0008] Two worm gears are fixedly connected to the circumferential surfaces of two threaded sleeves, and a worm is meshed with the front side of the two worm gears. A second servo motor for driving the worm to rotate is fixedly connected between the right end face of the worm and the support frame.

[0009] Preferably, multiple positioning sleeves are slidably connected to the circumferential surfaces of the pressing roller and the two rotating rollers, and the multiple positioning sleeves are respectively fixed to the circumferential surfaces of the pressing roller and the two rotating rollers by multiple set screws.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This solution uses a circular arc bending method to replace the metal plate bending forming method in the existing cable rack production process. This helps to avoid the problem of too many weld points caused by too many bends, and also helps to avoid the problem of jamming when pulling cables due to insufficient roundness at the bend of the cable rack.

[0012] In this design, when there is a bend at the edge of the metal plate, the distance between the two positioning sleeves can be adjusted by rotating the set screw, so that the bend at the edge of the metal plate can be accommodated in the gap between the two positioning sleeves, thus making it easier for this device to bend the metal plate with the bend at the edge into an arc shape. Attached Figure Description

[0013] Figure 1 This is a perspective view of the present utility model;

[0014] Figure 2 This is a three-dimensional exploded view of the worm gear of this utility model.

[0015] In the diagram: 1. Support frame; 2. Rotary roller; 3. First servo motor; 4. Belt; 5. Drive shaft; 6. Pressing roller; 7. Connecting block; 8. Screw; 9. Threaded sleeve; 10. Worm gear; 11. Limiting ring; 12. Worm; 13. Second servo motor; 14. Positioning sleeve; 15. Set screw. Detailed Implementation

[0016] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0017] like Figures 1-2 The automatic arc-shaped machine shown includes a support frame 1, with two rotating rollers 2 rotatably connected between the left and right inner walls of the support frame 1. The right end faces of both rollers 2 penetrate the support frame 1 and are fixedly connected to a drive shaft 5. A belt 4 is sleeved between the two drive shafts 5, and the two drive shafts 5 are connected by the belt 4. A first servo motor 3 for driving the rotation of the drive shaft 5 is fixedly connected between the support frame 1 and one drive shaft 5. The machine also includes:

[0018] Pressing roller 6 is rotatably connected between two connecting blocks 7, and the pressing roller 6 is located on the upper side of the two rotating rollers 2. The upper end face of the two connecting blocks 7 is fixedly connected with screws 8, and the upper end face of the two screws 8 passes through the support frame 1.

[0019] Two threaded sleeves 9 are rotatably connected to the upper end face of the support frame 1 through two limiting rings 11, and the two threaded sleeves 9 are threaded to the circumferential surfaces of the two screws 8 respectively.

[0020] Two worm gears 10 are fixedly connected to the circumferential surfaces of two threaded sleeves 9 respectively. The front sides of the two worm gears 10 are meshed with worms 12. A second servo motor 13 for driving the worm 12 to rotate is fixedly connected between the right end face of the worm 12 and the support frame 1.

[0021] During operation, when the metal plate at the bend of the cable tray needs to be produced, the second servo motor 13 is turned on. The output end of the second servo motor 13 rotates, driving the worm gear 12 to rotate. The worm gear 12 rotates, driving the worm wheel 10 to rotate. The worm wheel 10 rotates, driving the threaded sleeve 9 to rotate. The threaded sleeve 9 rotates, driving the screw 8 to move upward, thereby driving the pressing roller 6 to move away from the two rotating rollers 2. The metal plate is placed between the upper surface of the two rotating rollers 2 and the pressing roller 6. The second servo motor 13 is turned on, and the output end of the second servo motor 13 rotates in the opposite direction, driving the pressing roller 6 to move closer to the two rotating rollers 2. This allows the pressing roller 6 and the two rotating rollers 2 to cooperate in pressing the metal plate, thereby achieving the bending of the metal plate. After the pressing position of the pressing roller 6 is fixed, the first servo motor 3 is disconnected. The output end of the first servo motor 3 rotates, driving the two rotating rollers 2 to rotate, thereby driving the bent metal plate to slowly roll away from the two rotating rollers 2 and the pressing roller 6 with a rounded arc, ultimately achieving the bending of the metal plate into a rounded arc shape.

[0022] In this solution, the angle at which the pressing roller 6 bends the metal plate can be adjusted by controlling the number of rotations of the second servo motor 13, thus making it easier to bend the metal plate into an arc shape at any angle.

[0023] This solution uses a circular arc bending method to replace the metal plate bending forming method in the existing cable rack production process. This helps to avoid the problem of too many weld points caused by too many bends, and also helps to avoid the problem of jamming when pulling cables due to insufficient roundness at the bend of the cable rack.

[0024] Specifically, multiple positioning sleeves 14 are slidably connected to the circumferential surfaces of the pressing roller 6 and the two rotating rollers 2. The multiple positioning sleeves 14 are respectively limited and fixed to the circumferential surfaces of the pressing roller 6 and the two rotating rollers 2 by multiple set screws 15.

[0025] During operation, when there is a bend at the edge of the metal plate, the distance between the two positioning sleeves 14 can be adjusted by rotating the set screw 15, so that the bend at the edge of the metal plate can be accommodated in the gap between the two positioning sleeves 14, thereby facilitating the device to bend the metal plate with the bend at the edge into an arc shape.

[0026] Working principle of this utility model:

[0027] In this solution, when it is necessary to produce the metal plate at the bend of the cable tray, the second servo motor 13 is turned on. The output end of the second servo motor 13 rotates, driving the worm gear 12 to rotate. The worm gear 12 rotates, driving the worm wheel 10 to rotate. The worm wheel 10 rotates, driving the threaded sleeve 9 to rotate. The threaded sleeve 9 rotates, driving the screw 8 to move upward, thereby driving the pressing roller 6 to move away from the two rotating rollers 2. The metal plate is placed between the upper surface of the two rotating rollers 2 and the pressing roller 6. The second servo motor 13 is turned on, and the output end of the second servo motor 13 rotates in the opposite direction, driving the pressing roller 6 to move closer to the two rotating rollers 2. This allows the pressing roller 6 and the two rotating rollers 2 to cooperate in pressing the metal plate, thereby achieving the bending of the metal plate. After the pressing position of the pressing roller 6 is fixed, the first servo motor 3 is disconnected. The output end of the first servo motor 3 rotates, driving the two rotating rollers 2 to rotate, thereby driving the bent metal plate to slowly roll away from the two rotating rollers 2 and the pressing roller 6 with a rounded arc, ultimately achieving the bending of the metal plate into a rounded arc shape.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection claimed by this utility model, which is defined by the appended claims and their equivalents.

Claims

1. Automatic arc machine comprising a support frame (1), characterized in that, The support frame (1) is rotatably connected between the left and right inner walls of two rotating rollers (2), the right end face of the two rotating rollers (2) penetrates the support frame (1) and is fixedly connected with a transmission shaft (5), the two transmission shafts (5) are sleeved with a belt (4), and the two transmission shafts (5) are drivingly connected through the belt (4), the support frame (1) and one transmission shaft (5) are fixedly connected with a first servo motor (3) for driving the transmission shaft (5) to rotate, and further comprising: The pressing roller (6) is rotatably connected between the two connecting blocks (7), and the pressing roller (6) is located above the two rotating rollers (2), the upper end face of the two connecting blocks (7) is fixedly connected with a screw rod (8), and the upper end face of the two screw rods (8) penetrates the support frame (1); Two threaded sleeves (9) are rotatably connected to the upper end face of the support frame (1) through two limiting rings (11), and the two threaded sleeves (9) are respectively screwed on the circumferential surface of the two screw rods (8); Two worm gears (10) are fixedly connected to the circumferential surface of the two threaded sleeves (9), and the front side of the two worm gears (10) is meshingly connected with a worm (12), and the right end face of the worm (12) and the support frame (1) are fixedly connected with a second servo motor (13) for driving the worm (12) to rotate.

2. The automatic arc machine according to claim 1, characterized in that, The circumferential surface of the pressing roller (6) and the two rotating rollers (2) is slidably connected with a plurality of positioning sleeves (14), and the plurality of positioning sleeves (14) are limitingly fixed on the circumferential surface of the pressing roller (6) and the two rotating rollers (2) through a plurality of jackscrews (15).

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