Automatic steel plate shearing process for manufacturing conical lamp pole

Abstract

The invention relates to an automatic shearing process of a steel plate for manufacturing a conical lamp post, an automatic shearing system is adopted, the automatic shearing system comprises a rotary plate shearing machine, a conveying roller way A, a material throwing pinch roll and a universal material supporting frame, a plurality of groups of clamp devices are arranged on one side of the universal material supporting frame, and a drag chain type supporting frame is arranged on the other side of the universal material supporting frame. A movable slitting mill is arranged at one end of the drag chain type supporting frame, and a material pushing mechanism is arranged in the middle of the material throwing pinch roll; the shearing process comprises the following steps that S1, a rotary plate shearing machine is used for cutting a plate into a parallelogram; s2, a conveying roller way A and a material throwing pinch roll convey the plate to a universal material supporting frame; s3, positioning a push plate material at the bottom of the material pushing mechanism; s4, the multiple clamp devices act cooperatively to swing the plate obliquely and clamp the plate, and the symmetrical center line of the plate is flush with the cutting face of the movable slitting mill; s5, the slitting mill is moved to conduct shearing action; long-distance shearing of thick plates is achieved, the machining efficiency is improved, and the intelligent lamp pole plate shearing device is suitable for plate shearing of intelligent lamp poles.

Description

Technical Field

[0001] The present invention relates to the technical field of sheet metal processing, and specifically to an automatic shearing process for steel plates used to manufacture conical lamp poles. Background Art

[0002] Smart lamp poles are street lamps equipped with various sensors and sensing devices to achieve multi-functional integration. Smart street lamps not only have the basic lighting function, but also integrate multiple functions such as public security, traffic signals, communication, and traffic signs, realizing the integration of multiple poles, reducing the number of poles on the road surface, and releasing public space resources. Currently, smart lamp poles generally have a conical shape with a smaller top and a larger bottom, and they are mainly composed of several trapezoidal plates spliced together. Therefore, it is first necessary to shear the trapezoidal plates from the sheet metal. Since the height of the lamp pole is usually more than 10 meters, and the wall thickness of the smart lamp pole is relatively thick, the traditional shearing machine cannot perform accurate processing. Therefore, it is necessary to design an automatic shearing process suitable for the sheet metal of smart lamp poles. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art, and to provide an automatic shearing process for steel plates used to manufacture conical lamp poles.

[0004] The specific solution of the present invention is an automatic shearing process for steel plates used to manufacture conical lamp poles, which uses an automatic shearing system. The automatic shearing system includes a rotary shearing machine, a conveying roller table A, a throwing and clamping roller, and a universal supporting frame arranged in sequence. There are several bull's-eye bearings on the universal supporting frame. Several groups of clamping devices are installed on one side of the universal supporting frame, and a drag chain support frame is provided on the other side of the universal supporting frame. A bull's-eye bearing is installed on the top of the drag chain support frame, and a mobile rotary cutter is installed at one end of the drag chain support frame. A pushing mechanism is provided in the middle of the throwing and clamping roller, and a lifting drive mechanism is connected to the bottom of the pushing mechanism; the shearing process includes the following steps: S1. The rotary shearing machine rotates to a set angle, and the head end of the sheet metal is sheared once when passing through the rotary shearing machine, and the tail end of the sheet metal is sheared again when passing through, forming a parallelogram-shaped sheet metal; S2. The sheet metal is conveyed to the universal supporting frame through the conveying roller table A, and the tail end of the sheet metal is thrown to the universal supporting frame through the throwing and clamping roller so that the sheet metal completely falls on the universal supporting frame; S3. The lifting drive mechanism at the bottom of the pushing mechanism operates to raise the pushing mechanism to the same height as the sheet metal, and then the pushing mechanism operates to push the sheet metal forward by a fixed distance, and one end of the sheet metal stops at the 0 position of the X axis; S4. Automatically select several corresponding clamping devices according to the length of the sheet metal, and the system calculates the distance for each clamping device to push the sheet metal along the Y axis, so that the two end edges of the sheet metal are parallel to the Y axis, and at the same time, control the symmetry center line of the sheet metal to be aligned with the cutting surface of the mobile rotary cutter; S5. The moving rotary cutting machine moves along the X-axis from one end of the sheet material to the other end, and during the moving process, the sheet material is sheared, so that the parallelogram sheet material is cut into two right trapezoidal sheet materials.

[0005] Further, a lifting mechanism is connected to the bottom of the universal material supporting frame. There is a conveying roller path B above the universal material supporting frame, and the height of the conveying roller path B is the same as that of the conveying roller path A. One of the two right trapezoidal sheet materials is sent to a designated position through the conveying roller path B, and the other one falls on the drag chain supporting frame and is lifted away by a crane.

[0006] Further, the clamp device includes a fixed frame. A linear track is arranged at the top of the fixed frame, and the linear track is arranged perpendicular to the conveying direction of the conveying roller path A. An alligator mouth bracket is slidably installed on the linear track. A linear driving mechanism A is installed at one end of the linear track, and the linear driving mechanism A is used to drive the alligator mouth bracket to move. An opening is arranged on one side of the alligator mouth bracket facing the sheet material, and an oil cylinder B for clamping the sheet material is installed at the outer end of the opening.

[0007] Further, a boosting roller is installed inside the opening of the alligator mouth bracket, and the upper and lower ends of the central shaft of the boosting roller are connected to the alligator mouth bracket.

[0008] Further, a slide rail is arranged at the opening of the alligator mouth bracket, the upper and lower ends of the central shaft of the boosting roller are slidably connected to the slide rail, and a linear driving mechanism B is installed on the alligator mouth bracket. The linear driving mechanism B is connected to the boosting roller to drive the boosting roller to move along the slide rail.

[0009] Further, the material pushing mechanism includes an oil cylinder A. Guide sleeves are arranged on both sides of the oil cylinder A. A push plate is installed at the outer end of the piston rod of the oil cylinder A. A guide rod is installed at each end of the push plate, and the guide rod is slidably connected to the corresponding guide sleeve. A push head is arranged in the middle of the side of the push plate facing the sheet material, and the push head is in a semi-cylindrical shape.

[0010] Further, the drag chain supporting frame includes a plurality of supporting frames. Each adjacent two supporting frames are connected by a chain. Wheels are installed at the bottom of each supporting frame. A ground rail is installed below all the supporting frames, and the ground rail is arranged parallel to the conveying direction of the conveying roller path A. The moving rotary cutting machine is arranged in the middle of the plurality of supporting frames and is connected to the adjacent two supporting frames. During the moving process, the moving rotary cutting machine drives the supporting frames to move back and forth along the ground rail.

[0011] The present invention has the following advantages compared with the prior art: realizing continuous automatic shearing processing of trapezoidal plates, improving the processing efficiency, and ensuring the processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is the front view of the present invention; Figure 2 is a schematic diagram of the rotary shearing machine of the present invention shearing the sheet material into a parallelogram; Figure 3 It is a schematic diagram of the pushing mechanism of the present invention pushing the parallelogram sheet material in place; Figure 4 It is a schematic diagram of the clamping device of the present invention cooperatively tilting the parallelogram sheet material; Figure 5 It is a schematic diagram of the mobile rotary cutting machine of the present invention for shearing; Figure 6 It is a schematic structural diagram of the clamping device of the present invention; Figure 7 It is the front view of the pushing mechanism of the present invention; Figure 8 is Figure 7 top view of; Figure 9 It is a schematic structural diagram of the mobile rotary cutting machine of the present invention; In the figure: 1, rotary shearing machine; 2, conveying roller path A; 3, throwing material clamping and feeding roller; 4, pushing mechanism; 41, oil cylinder A; 42, guide rod; 43, guide sleeve; 44, push plate; 45, push head; 5, conveying roller path B; 6, mobile rotary cutting machine; 61, disc blade; 62, cutter driving mechanism; 63, roller; 64, traveling motor; 7, drag chain support frame; 8, universal material supporting frame; 9, clamping device; 91, boosting roller; 92, oil cylinder B; 93, alligator mouth support; 94, linear driving mechanism A. Specific embodiments

[0013] Embodiment 1 This embodiment is an automatic shearing process for steel plates used to manufacture conical lamp poles, adopting an automatic shearing system. The automatic shearing system includes a rotary shearing machine, a conveying roller path A, a throwing material clamping and feeding roller, and a universal material supporting frame arranged in sequence. A number of bull's-eye bearings are provided on the universal material supporting frame. Several groups of clamping devices are installed on one side of the universal material supporting frame. A drag chain support frame is provided on the other side of the universal material supporting frame. Bull's-eye bearings are installed on the top of the drag chain support frame. A mobile rotary cutting machine is installed at one end of the drag chain support frame. A pushing mechanism is provided in the middle of the throwing material clamping and feeding roller. A lifting driving mechanism is connected to the bottom of the pushing mechanism; the shearing process includes the following steps: S1. The rotary shearing machine rotates to a set angle. When the head end of the sheet material passes through the rotary shearing machine, it is sheared once, and when the tail end of the sheet material passes through, it is sheared again to form a parallelogram sheet material; S2. The sheet material is conveyed to the universal material supporting frame through the conveying roller path A. The tail end of the sheet material is thrown to the universal material supporting frame through the throwing material clamping and feeding roller so that the sheet material completely falls on the universal material supporting frame; S3. The lifting driving mechanism at the bottom of the pushing mechanism acts to raise the pushing mechanism to the same height as the sheet material, and then the pushing mechanism acts to push the sheet material forward by a fixed distance, and one end of the sheet material stops at the 0 position of the X-axis; S4. Automatically select a corresponding number of clamp devices according to the length of the sheet metal. The system calculates the distance for each clamp device to push the sheet metal along the Y-axis, so that the two end edge lines of the sheet metal are parallel to the Y-axis, and at the same time, controls the symmetry center line of the sheet metal to align with the cutting surface of the mobile slitting machine. S5. The drag chain support frame moves to drive the mobile slitting machine to move along the X-axis, so that the mobile slitting machine moves from one end to the other end. During the moving process, the mobile slitting machine completes the shearing of the sheet metal, and the parallelogram sheet metal is cut into two right trapezoidal sheet metals. One of the right trapezoidal sheet metals is pushed away along the universal material support frame, and the other right trapezoidal sheet metal is lifted away by a crane.

[0014] S6. The mobile slitting machine returns to its original position, and each clamp device resets to prepare for the shearing process of the next sheet metal.

[0015] Further, the clamp device includes a fixed frame. A linear track is provided at the top of the fixed frame, and the linear track is arranged perpendicular to the conveying direction of the conveying roller path A. An alligator mouth bracket is slidably installed on the linear track. A linear drive mechanism A is installed at one end of the linear track, and the linear drive mechanism A is used to drive the alligator mouth bracket to move. An opening is provided on the side of the alligator mouth bracket facing the sheet metal, and an oil cylinder B for clamping the sheet metal is installed at the outer end of the opening.

[0016] Further, the linear drive mechanism A includes a servo motor A. A lead screw is installed at the output end of the servo motor A. A connecting block is installed at the bottom of the alligator mouth bracket, and the connecting block is threadedly connected to the lead screw. The servo motor A drives the connecting block to drive the alligator mouth bracket to move along the linear track.

[0017] Further, a boosting roller is installed inside the opening of the alligator mouth bracket, and the upper and lower ends of the central axis of the boosting roller are fixedly connected to the alligator mouth bracket.

[0018] The working principle of the clamp device in this embodiment is as follows: The alligator mouth bracket is driven to move along the Y-axis direction by the linear drive mechanism A. When the sheet metal is tilted in step S4, the oil cylinder B is in a loose state first. Each clamp device is precisely controlled by the servo motor A according to the calculated distance it needs to move. The alligator mouth bracket pushes the sheet metal through the boosting roller. The distance the alligator mouth bracket moves is the distance the boosting roller pushes the sheet metal. After the sheet metal moves to the specified position and angle, the oil cylinder B of each clamp device acts to clamp the sheet metal.

[0019] Further, the material pushing mechanism includes an oil cylinder A. Guide sleeves are provided on both sides of the oil cylinder A. A push plate is installed at the outer end of the piston rod of the oil cylinder A. A guide rod is installed at each end of the push plate, and the guide rod is slidably connected to the corresponding guide sleeve. A push head is provided in the middle of the side of the push plate facing the sheet metal, and the push head is in the shape of a semi-cylinder.

[0020] Further, the drag chain support frame includes several support frames, which are connected by chains between every two adjacent support frames. Rollers are installed at the bottom of each support frame, and a ground rail is installed below all the support frames. The ground rail is arranged parallel to the conveying direction of the conveying roller path A. The mobile rolling cutter is arranged in the middle of several support frames and is connected to two adjacent support frames. When the mobile rolling cutter moves, it drives the support frames to move back and forth along the ground rail. The support frames at both ends are fixed in position, and each of the middle support frames is driven by the adjacent support frames through the chain when they move. When the mobile rolling cutter moves to the left, the support frames on the right unfold, while the support frames on the left fold up. When the mobile rolling cutter moves to the right, the support frames on the left unfold, and the support frames on the right fold up; when unfolded, the maximum distance between two adjacent support frames is the length of the chain.

[0021] In this embodiment, the mobile rolling cutter includes a base, on which a track is installed along the full length. A moving frame is installed on the track, and rollers for moving along the track are installed at the bottom of the moving frame. A rolling cutting mechanism is installed at the upper end of the moving frame. The rolling cutting mechanism includes two disc blades, each of the two disc blades is connected with a transmission shaft, and the transmission shaft is connected with a cutter driving mechanism; A traveling motor is installed on one side of the moving frame, and the traveling motor is in transmission connection with one of the rollers.

[0022] Embodiment 2 The process of this embodiment is basically the same as that of Embodiment 1. The difference is that a lifting mechanism is connected to the bottom of the universal material supporting frame, and a conveying roller path B is arranged above the universal material supporting frame. The height of the conveying roller path B is the same as that of the conveying roller path A; When the sheet material is thrown from the conveying roller path A to the conveying roller path B by the throwing and clamping roller, the universal material supporting frame is below the conveying roller path B. When step S4 is carried out, the lifting mechanism of the universal material supporting frame acts to jack up the sheet material. At this time, the height of the universal material supporting frame is higher than that of the conveying roller path B, so as to avoid the sliding friction between the sheet material and the conveying roller path B when the clamp skews the sheet material. During the skewing process, the sheet material is supported by the bull's eye bearings at the top of the universal material supporting frame, and the friction between the sheet material and the bull's eye bearings is rolling friction, thus reducing the wear on the surface of the sheet material and also avoiding the damage of the conveying roller path B caused by the long-term friction of the sheet material. After the skewing step is completed, the mobile rolling cutter acts to cut the sheet material into two right trapezoidal sheet materials. One of them is lifted away by a traveling crane on the drag chain support frame, and the other one falls on the universal material supporting frame. Then the clamp device is loosened, and the lifting mechanism of the universal material supporting frame contracts downward until it is lower than the conveying roller path B. Finally, the sheet material falls on the conveying roller path B and is transported to the designated position through the conveying roller path B.

[0023] Embodiment 3 The solution of this embodiment is basically the same as that of Embodiment 1. The difference is that a slide rail is arranged at the opening of the alligator mouth support, the upper and lower ends of the central axis of the boosting roller are slidably connected with the slide rail, and a linear driving mechanism B is installed on the alligator mouth support. The linear driving mechanism B is connected with the boosting roller to drive the boosting roller to move along the slide rail.

[0024] The structure and principle of the linear drive mechanism B in this embodiment are the same as those of the linear drive mechanism A. The servo motor drives the boosting roller to move along the open slide rail. When this embodiment is working and performing steps S1 - S4, the position of the boosting roller at the opening of the alligator mouth bracket remains unchanged and is the same as that in the first embodiment. When performing step S5, first, the linear drive mechanism B drives the boosting roller to move to the deep position of the opening, then the oil cylinder B is released, and the linear drive mechanism A drives the alligator mouth bracket to move towards the sheet metal. The moving distance is precisely controlled by the servo motor A, so that the alligator mouth bracket stops when the boosting roller is about to contact the edge of the sheet metal. Then, the oil cylinder B clamps the sheet metal again, so that the clamping points of each clamping device for clamping the sheet metal are closer to the cutting line, thus ensuring a smoother cutting process of the moving rotary cutter and avoiding jamming caused by the clamping point being too far from the cutting line. After the cutting is completed in step S5, the moving rotary cutter returns to its original position, each clamping device releases the sheet metal, and at the same time, the linear drive mechanism A controls the alligator mouth bracket to return to its original position, and the linear drive mechanism B controls the boosting roller to return to its original position (i.e., the position close to the outer end of the opening).

Claims

1. An automated steel plate shearing process for making conical lamp poles, characterized in that: An automatic shearing system is adopted. The automatic shearing system includes a rotary shearing machine, a conveying roller path A, a throwing material pinch roller, and a universal material support frame arranged in sequence. A number of bull's-eye bearings are provided on the universal material support frame. A number of sets of clamp devices are installed on one side of the universal material support frame. A drag-chain support frame is provided on the other side of the universal material support frame. Bull's-eye bearings are installed on the top of the drag-chain support frame. A mobile rotary cutting machine is installed at one end of the drag-chain support frame. A pushing mechanism is provided in the middle of the throwing material pinch roller. The bottom of the pushing mechanism is connected with a lifting drive mechanism; The shearing process includes the following steps: S1. The rotary shearing machine rotates to a set angle. When the head end of the sheet material passes through the rotary shearing machine, it is sheared once. When the tail end of the sheet material passes through, it is sheared once again to form a parallelogram sheet material; S2. The sheet material is conveyed to the universal material support frame through the conveying roller path A. The tail end of the sheet material is thrown towards the universal material support frame through the throwing material pinch roller so that the sheet material completely falls on the universal material support frame; S3. The lifting drive mechanism at the bottom of the pushing mechanism acts to raise the pushing mechanism to the same height as the sheet material. Then the pushing mechanism acts to push the sheet material forward by a fixed distance, and one end of the sheet material stops at the 0 position of the X-axis; S4. Automatically select a corresponding number of clamp devices according to the length of the sheet material. The system calculates the distance for each clamp device to push the sheet material along the Y-axis so that the two end edge lines of the sheet material are parallel to the Y-axis, and at the same time controls the symmetry center line of the sheet material to be aligned with the cutting surface of the mobile rotary cutting machine; S5. The mobile rotary cutting machine moves along the X-axis from one end of the sheet material to the other end. During the movement, the sheet material is sheared to cut the parallelogram sheet material into two right trapezoid sheet materials.

2. The automatic steel plate shearing process for manufacturing a conical lamp post according to claim 1, characterized in that: A lifting mechanism is connected to the bottom of the universal material support frame. A conveying roller path B is provided above the universal material support frame. The height of the conveying roller path B is the same as that of the conveying roller path A. One of the two right trapezoid sheet materials is sent to a designated position through the conveying roller path B, and the other one falls on the drag-chain support frame and is lifted away by a traveling crane.

3. An automated steel plate shearing process for manufacturing a conical lamp post according to claim 1, characterized in that: The clamp device includes a fixed frame. A linear track is provided on the top of the fixed frame. The linear track is arranged perpendicular to the conveying direction of the conveying roller path A. An alligator clip bracket is slidably installed on the linear track. A linear drive mechanism A is installed at one end of the linear track. The linear drive mechanism A is used to drive the alligator clip bracket to move. An opening is provided on the side of the alligator clip bracket facing the sheet material. An oil cylinder for clamping the sheet material is installed at the outer end of the opening.

4. An automated steel plate shearing process for manufacturing a conical lamp post according to claim 3, characterized in that: A boosting roller is installed inside the opening of the alligator clip bracket. The upper and lower ends of the central axis of the boosting roller are connected to the alligator clip bracket.

5. An automated steel plate shearing process for manufacturing a conical lamp post according to claim 4, characterized in that: A slide rail is provided in the opening of the alligator clip bracket. The upper and lower ends of the central axis of the boosting roller are slidably connected to the slide rail. A linear drive mechanism B is installed on the alligator clip bracket. The linear drive mechanism B is connected to the boosting roller to drive the boosting roller to move along the slide rail.

6. An automated steel plate shearing process for manufacturing a conical lamp post according to claim 1, characterized in that: The pushing mechanism includes an oil cylinder. Guide sleeves are provided on both sides of the oil cylinder. A push plate is installed at the outer end of the piston rod of the oil cylinder. A guide rod is installed at each end of the push plate. The guide rod is slidably connected to the corresponding guide sleeve. A push head is provided in the middle of the side of the push plate facing the sheet material. The push head is in the shape of a semi-cylinder.

7. An automated steel plate shearing process for manufacturing a conical lamp post according to claim 1, characterized in that: The drag-chain support frame includes several support frames, which are connected by chains between every two adjacent support frames. Rollers are installed at the bottom of each support frame, and a ground rail is installed below all the support frames. The ground rail is arranged parallel to the conveying direction of the conveying roller path A. The mobile rotary cutting machine is arranged in the middle of several support frames and is connected to two adjacent support frames. During the movement of the mobile rotary cutting machine, it drives the support frames to move back and forth along the ground rail.

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