A bending device for processing angle plate workpieces for automobile reinforcement

Abstract

The present invention discloses a bending device for processing angle plate workpieces for automobile reinforcement, which belongs to the technical field of angle plate workpiece processing; it includes a body, a movable die and a fixed die, and a clamping assembly for the angle plate workpiece raw material to be processed is installed on the outside of the body, and the clamping assembly includes a through groove provided on the side wall of the body, and a plurality of square rods are slidably connected in the through groove. The present invention completes the clamping operation of the angle plate raw material through a plurality of clamping plates and a control plate, limits the movement trajectory of the angle plate, and thus enables multiple angle plates to be processed simultaneously. At the same time, after the bending operation of the angle plate workpiece raw material is completed, under the action of a first spring, the first connecting plate and the angle plate workpiece raw material will be caused to move upward as a whole, so that the angle plate workpiece raw material is moved out of the fixed die, and at this time, the bent angle plate workpiece raw material can be pulled out, reducing the possibility that the angle plate workpiece raw material is stuck in the fixed die due to extrusion.

Description

Technical Field

[0001] The invention relates to the technical field of angle plate workpiece processing, and in particular to a bending device for processing an angle plate workpiece for automobile reinforcement. Background Art

[0002] In the process of automobile production, in order to improve the overall firmness of the automobile, angle plates are often installed at the joints of the automobile shell. Since the automobile shell is an irregular shape, the angle plates need to be bent first. Among them, the bending machine is the most important processing machine.

[0003] A bending machine is a machine that can bend thin plates. Its structure mainly includes a bracket, a workbench and a clamping mold. By placing the angle plate in the clamping mold and starting the bending machine, the angle plate can be bent at a certain angle. The overall operation is simple, but in the actual processing process, there is no clamping structure for the angle plate, and multiple manual adjustments are required. After the bending is completed and during the bending process, the bending force is likely to be too large, causing certain damage to the angle plate, and subsequent inspections are required manually, which is time-consuming and labor-intensive. After a bending operation, the angle plate is likely to rebound, so it is necessary to manually inspect the bending angle after another bending operation, further increasing the workload of the workers. At the same time, after the bending is completed, the angle plate is likely to be stuck in the clamping mold, and the staff needs to pull the angle plate out forcefully, which is very troublesome and also has certain risks. Therefore, a bending device for processing angle plate workpieces for automobile reinforcement is provided. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art and to propose a bending device for processing angle plate workpieces for automobile reinforcement.

[0005] The present invention adopts the following technical solutions:

[0006] A bending device for processing angle plate workpieces for automobile reinforcement comprises a main body, a movable mold and a fixed mold, a clamping assembly for the angle plate workpiece material to be processed is installed on the outer side of the main body, and the clamping assembly comprises a through slot opened on the side wall of the main body, and a plurality of square rods are slidably connected in the through slot, and both ends of the plurality of square rods are rotatably connected with rotating rods, and the same first connecting rod is rotatably connected between two adjacent rotating rods, the outer side of the first connecting rod is slidably connected with a first clamping plate, the outer side of the first connecting rod is threadedly connected with a nut, and the side wall of the first clamping plate is provided with a sliding groove, a square block is slidably connected in the sliding groove, and a first spring is fixedly connected between the square block and the sliding groove, the outer side of the square block is rotatably connected with a second connecting rod, and the outer side of the second connecting rod is rotatably sleeved with a first connecting plate, the first connecting plate and the square block are fixedly connected with a first torsion spring, and the upper side of the first connecting plate is slidably connected with two control plates.

[0007] Preferably, a control component for controlling the shaking of the control plate is installed in the slide groove, and the control component includes two control grooves opened on the side wall of the first connecting plate, and control rods are slidably connected in the two control grooves, and a second spring is fixedly connected between the control rod and the side wall of the control groove, and an opening is opened on the upper side of the control groove, and a third connecting rod is fixedly connected to the upper side of the control rod, and the third connecting rod passes through the opening, and the third connecting rod is fixedly connected to the control plate, and a plurality of arc blocks are symmetrically fixedly installed in the slide groove.

[0008] Preferably, a rebound detection assembly is installed on the outer side of the first connecting plate, and the rebound detection assembly includes a ratchet rotatably installed on the outer side of the second connecting rod, a fourth connecting rod is fixedly connected to the outer side of the ratchet, a second connecting plate is fixedly connected to the outer side of the fourth connecting rod, a first pressure sensor is fixedly connected to the upper side of the second connecting plate, a fixed plate is fixedly connected to the end of the second connecting rod, a second torsion spring is fixedly connected between the fixed plate and the ratchet, a fifth connecting rod is slidably connected to the side wall of the fixed plate, and a fifth spring is fixedly connected between the fifth connecting rod and the fixed plate.

[0009] Preferably, a crack detection assembly is installed on the upper side of the first connecting plate, and the crack detection assembly includes a positioning rod fixedly installed on the upper side of the first connecting plate, a sleeve plate is slidably connected to the outer side of the positioning rod, two sixth connecting rods are slidably connected to the outer side of the sleeve plate, a third connecting plate is fixedly connected to the outer sides of the two sixth connecting rods, a third spring is fixedly connected between the third connecting plate and the sleeve plate, a second pressure sensor is also fixedly connected between the third connecting plate and the sleeve plate, a fourth connecting plate is fixedly connected to the upper side of the positioning rod, a fourth spring is fixedly connected between the fourth connecting plate and the sleeve plate, two first trapezoidal plates are symmetrically fixedly connected to the lower side of the sleeve plate, and a second trapezoidal plate is fixedly connected to the upper side of the control plate.

[0010] Preferably, a rubber pad is fixedly connected to the upper side of the control panel.

[0011] Preferably, the surfaces of the control rod and the arc block are both smooth.

[0012] Preferably, both the front and rear sides of the body are provided with limiting grooves, a plurality of limiting rods are slidably connected in the limiting grooves, the plurality of limiting rods and the first clamping plate are matched one by one, and the plurality of limiting rods and the first clamping plate are fixedly connected.

[0013] The beneficial effects of the present invention are:

[0014] 1. First, the angle plate raw material is clamped by multiple clamping plates and control plates to limit the movement trajectory of the angle plate, so that multiple angle plates can be processed simultaneously. At the same time, after the bending operation of the angle plate workpiece raw material is completed, under the action of the first spring, the first connecting plate and the angle plate workpiece raw material will move upward as a whole, so that the angle plate workpiece raw material is moved out of the fixed mold. At this time, the bent angle plate workpiece raw material can be pulled out, reducing the possibility of the angle plate workpiece raw material being stuck in the fixed mold due to extrusion;

[0015] 2. Secondly, after the angle plate bending process is completed, the angle plate workpiece material will move under the action of the control board, and then shake. After the angle plate workpiece material is bent, there is a high probability that there will be processing weaknesses. A certain shaking will magnify the weak points of the angle plate workpiece material. If the processing defects are large, the angle plate workpiece material after bending will break during the movement, and then the self-inspection operation of the angle plate workpiece material will be completed;

[0016] 3. After the bending operation of the angle plate workpiece material is completed, the angle plate workpiece material will rebound to a certain extent under its own action, which will cause the control plate and the first connecting plate to rotate slightly counterclockwise as a whole, thereby causing the force of the angle plate workpiece material on the first pressure sensor to change. The magnitude of the rebound of the angle plate workpiece material can be inferred through the magnitude of the change in the electrical signal of the first pressure sensor. If the rebound of the angle plate workpiece material is too large, the bending operation needs to be repeated until the bending angle of the angle plate workpiece material meets the working requirements, thereby completing the measurement of the rebound of the angle plate workpiece material;

[0017] 4. Finally, during the process of pulling out the angle plate, the third connecting plate is always against the side wall of the angle plate workpiece. If there is no crack on the side wall of the angle plate workpiece or the crack is small, the electrical signal emitted by the second pressure sensor is in a certain range during the process of pulling out the angle plate workpiece. If there is a crack in the angle plate workpiece and the crack is large, the third connecting plate will move relative to the sleeve plate, and the electrical signal emitted by the second pressure sensor will change dramatically, thereby completing the detection operation of the side wall of the angle plate workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a bending device for processing an automobile reinforcement angle plate workpiece proposed by the present invention;

[0019] Figure 2 This is a schematic diagram of the connection between a main body, a movable die, and a fixed die in a bending device for processing an automobile reinforcement angle plate workpiece proposed by the present invention;

[0020] Figure 3 This is a schematic diagram of the connection of a clamping assembly in a bending device for processing an automobile reinforcement angle plate workpiece proposed by the present invention;

[0021] Figure 4 This is a schematic structural diagram of a first clamping plate in a bending device for processing an automobile reinforcement angle plate workpiece proposed by the present invention;

[0022] Figure 5 This is a schematic diagram of the internal connection of a slideway in a bending device for processing an angle plate workpiece for automobile reinforcement proposed by the present invention;

[0023] Figure 6 A top view schematic diagram of the connection between a square block and a control panel in a bending device for processing an angle plate workpiece for automobile reinforcement proposed by the present invention;

[0024] Figure 7 This is a schematic diagram of the connection of a control component in a bending device for processing an angle plate workpiece for automobile reinforcement proposed by the present invention;

[0025] Figure 8 This is a schematic diagram of the connection of a springback detection component in a bending device for processing an automobile reinforcement angle plate workpiece proposed by the present invention;

[0026] Fig. 9 A schematic diagram of the connection of a crack detection component in a bending device for processing an automobile reinforcement angle plate workpiece proposed by the present invention;

[0027] Fig.10 The present invention is a schematic diagram of the connection of sleeve plates in a bending device for processing angle plate workpieces for automobile reinforcement.

[0028] In the figure: 1 body, 2 movable mold, 3 fixed mold, 4 clamping assembly, 401 through slot, 402 square rod, 403 rotating rod, 404 first connecting rod, 405 first clamping plate, 406 sliding slot, 407 second connecting rod, 408 first connecting plate, 409 control plate, 410 square block, 411 first torsion spring, 412 first spring, 5 limit slot, 6 limit rod, 7 control assembly, 71 control slot, 72 control rod, 73 second spring, 74 third connecting rod, 75 arc block, 8 rebound detection assembly, 81 ratchet, 82 fourth connecting rod, 83 second connecting plate, 84 first pressure sensor, 85 second torsion spring, 86 fifth connecting rod, 87 fixed plate, 9 crack detection assembly, 91 positioning rod, 92 sleeve plate, 93 sixth connecting rod, 94 third connecting plate, 95 third spring, 96 second pressure sensor, 97 first trapezoidal plate, 98 second trapezoidal plate, 99 fourth connecting plate. DETAILED DESCRIPTION

[0029] See also Figure 1-Figure 10 A bending device for processing an angle plate workpiece for automobile reinforcement includes a body 1, a movable die 2 and a fixed die 3. The body 1 includes a bracket shell, a workbench, and a hydraulic device. The bracket shell is fixedly installed on the upper side of the workbench, the hydraulic device is fixedly installed in the bracket shell, the movable die 2 is fixedly installed at the output end of the hydraulic device, the fixed die 3 is fixedly installed on the upper side of the workbench, and the movable die 2 and the fixed die 3 are opposite to each other, that is, a protrusion at a certain angle is provided on the lower side of the movable die 2, and a groove at a certain angle is provided on the upper side of the fixed die 3, and the protrusion and the groove match each other;

[0030] First, the movable die 2 and the fixed die 3 are fixedly installed by means of bolts. Secondly, when the angle plate workpiece needs to be bent, the angle plate work material is placed on the fixed die 3, and the hydraulic equipment is started. The hydraulic equipment drives the movable die 2 to move downward, and the movable die 2 and the angle plate workpiece material are pressed against each other, and the angle plate workpiece material is squeezed until the protrusion, the angle plate workpiece material, and the groove are pressed against each other, thereby completing the bending processing operation of the angle plate workpiece material, and starting the hydraulic equipment again to move the movable die 2 upward back to its original position, and take out the processed material, thereby completing the overall bending processing operation;

[0031] like Figure 3 , Figure 4 , Figure 5A clamping assembly 4 for the raw material of the angle plate workpiece to be processed is installed on the outer side of the body 1. The clamping assembly 4 includes a through slot 401 opened on the side wall of the body 1, and a plurality of square rods 402 are slidably connected in the through slot 401. Both ends of the plurality of square rods 402 are rotatably connected with rotating rods 403. A first connecting rod 404 is rotatably connected between two adjacent rotating rods 403. A first clamping plate 405 is slidably connected to the outer side of the first connecting rod 404. A nut is threadedly connected to the outer side of the first connecting rod 404. A sliding groove 406 is opened on the side wall of the first clamping plate 405. A square block 410 is slidably connected in the sliding groove 406. A first spring 412 is fixedly connected between the square block 410 and the sliding groove 406. The outer side of the square block 410 is rotatably connected with the second connecting rod 407, and the outer side of the second connecting rod 407 is rotatably sleeved with the first connecting plate 408. A first torsion spring 411 is fixedly connected between the first connecting plate 408 and the square block 410. Two control plates 409 are slidably connected to the upper side of the first connecting plate 408. A rubber pad is fixedly connected to the upper side of the control plate 409 to increase the friction of the control plate 409. Limiting grooves 5 are provided on both the front and rear sides of the body 1. A plurality of limiting rods 6 are slidably connected in the limiting grooves 5. The plurality of limiting rods 6 are matched with the first clamping plate 405 one by one. The plurality of limiting rods 6 are fixedly connected with the first clamping plate 405 to determine and limit the movement trajectory of the first clamping plate 405.

[0032] First, when the angle plate workpiece material needs to be bent, the angle plate workpiece material is first placed between two adjacent first clamping plates 405, and the angle plate workpiece material is placed on the upper side of the control plate 409, and the first connecting rod 404 is moved in the direction close to each other to reduce the distance between the two adjacent first clamping plates 405 until the two adjacent first clamping plates 405 and the angle plate workpiece material are butted against each other. At this time, the nut is screwed on the outside of the first connecting rod 404 until the nut and the first clamping plate 405 are butted against each other, thereby completing the clamping operation of the angle plate workpiece material. When the angle plate workpiece material is bent, the moving mold 2 is butted against the angle plate workpiece material and drives the angle plate workpiece material to move downward, and the angle plate workpiece material drives the first connecting plate 409 through the control plate 409. 8. The second connecting rod 407 and the square block 410 move downward as a whole, and the square block 410 stretches the first spring 412. When the angle plate workpiece raw material is bent, the angle plate workpiece raw material will bend downward to form a certain angle, thereby causing the control plate 409 and the first connecting plate 408 that are against the angle plate workpiece raw material to rotate as a whole around the second connecting rod 407, thereby stretching the first torsion spring 411. After the bending operation of the angle plate workpiece raw material is completed, under the action of the first spring 412, the first connecting plate 408 and the angle plate workpiece raw material will move upward as a whole, so that the angle plate workpiece raw material is moved out of the fixed mold 3. At this time, the bent angle plate workpiece raw material can be pulled out to reduce the possibility of the angle plate workpiece raw material being squeezed and stuck in the fixed mold 3.

[0033] like Figure 6 , Figure 7 A control assembly 7 for controlling the shaking of the control board 409 is installed in the slide groove 406. The control assembly 7 includes two control grooves 71 opened on the side wall of the first connecting plate 408. A control rod 72 is slidably connected in the two control grooves 71. A second spring 73 is fixedly connected between the control rod 72 and the side wall of the control groove 71. An opening is opened on the upper side of the control groove 71. A third connecting rod 74 is fixedly connected to the upper side of the control rod 72. The third connecting rod 74 passes through the opening, and the third connecting rod 74 is fixedly connected to the control board 409. A plurality of arc blocks 75 are symmetrically fixedly installed in the slide groove 406. The surfaces of the control rod 72 and the arc blocks 75 are both smooth.

[0034] First, before the angle plate workpiece material is bent, the angle plate workpiece material and the control plate 409 are in a horizontal state as a whole, and the balance of the first torsion spring 411 will not be destroyed. In the process of the angle plate workpiece material, the control plate 409 and the first connecting plate 408 moving downward as a whole, the control rods 72 on both sides are simultaneously against the arc block 75. When the control rods 72 and the arc block 75 are against each other, the control rods 72 will move toward each other under the obstruction of the arc block 75. While the control rod 72 stretches the second spring 73, it drives the control plate 409 to move through the third connecting rod 74. When the control rod 72 and the arc block 75 are disconnected, the control rod 72 will move in a direction close to each other. After the connection is opened, under the action of the second spring 73, the control rod 72 will move away from the other side, and the control rod 72 will drive the control plate 409 to move away from the other side through the third connecting rod 74. In the above working process, the two control plates 409 have the same force on the angle plate workpiece material but opposite forces, so they cancel each other out and do not affect the angle plate workpiece material. However, after the angle plate workpiece material is bent, the angle plate workpiece material will form a certain angle. Since the control plate 409 has been against the angle plate workpiece material, the control plate 409 and the first connecting plate 408 will be in an inclined state. Figure 7, when the first connecting plate 408 and the control plate 409 rotate with the angle plate workpiece raw material, the first connecting plate 408 and the control plate 409 will rotate with the second connecting rod 407 as the center, resulting in that the control rods 72 on both sides will not be on the same horizontal line, and there is a certain height difference, but the arc blocks 75 are symmetrically arranged, that is, the arc blocks 75 opposite to each other on the two sides are on the same horizontal line, so in the process of the control plate 409 and the first connecting plate 408 moving upward, the control rods 72 and the arc blocks 75 on both sides will not contact at the same time, so During the overall upward movement of 08 and the control plate 409, only one of the control plates 409 will move, that is, the control plates 409 on both sides will not move at the same time. Therefore, the angle plate workpiece material will only be subjected to one force, which will cause the angle plate workpiece material to move and then shake. After the angle plate workpiece material is bent, there is a high probability that there will be processing weaknesses. A certain amount of shaking will magnify the weaknesses of the angle plate workpiece material. If the processing defects are large, the bent angle plate workpiece material will break during the movement, thereby completing the self-inspection operation of the angle plate workpiece material.

[0035] like Figure 8 A rebound detection assembly 8 is installed on the outer side of the first connecting plate 408, and the rebound detection assembly 8 includes a ratchet 81 rotatably installed on the outer side of the second connecting rod 407, a fourth connecting rod 82 is fixedly connected to the outer side of the ratchet 81, a second connecting plate 83 is fixedly connected to the outer side of the fourth connecting rod 82, a first pressure sensor 84 is fixedly connected to the upper side of the second connecting plate 83, a fixed plate 87 is fixedly connected to the end of the second connecting rod 407, a second torsion spring 85 is fixedly connected between the fixed plate 87 and the ratchet 81, a fifth connecting rod 86 is slidably connected to the side wall of the fixed plate 87, and a fifth spring is fixedly connected between the fifth connecting rod 86 and the fixed plate 87;

[0036] First, the first pressure sensor 84 is a device or apparatus that can sense pressure signals and convert pressure signals into usable output electrical signals according to a certain rule. Secondly, in the initial state, the first connecting plate 408 and the second connecting plate 83 are on the same horizontal plane, and the height of the first pressure sensor 84 is higher than the height of the control plate 409. Therefore, after the angle plate workpiece material is placed on the upper side of the control plate 409, the angle plate workpiece material will be against the first pressure sensor 84, thereby causing the first pressure sensor 84 to send out a corresponding electrical signal. When the angle plate workpiece material is bent, the angle plate workpiece material will drive the first pressure sensor 84 and the second connecting plate 83 to rotate clockwise around the second connecting rod 407. 1 has a special shape, and the fifth connecting rod 86 does not hinder the ratchet 81 from rotating clockwise, but it will hinder the ratchet 81 from rotating counterclockwise. After the bending operation of the diagonal plate workpiece material is completed, the angle plate workpiece material will rebound to a certain extent under its own action, thereby causing the control plate 409 and the first connecting plate 408 to rotate slightly counterclockwise as a whole, thereby causing the force of the angle plate workpiece material on the first pressure sensor 84 to change. The size of the rebound of the angle plate workpiece material can be inferred by the size of the change in the electrical signal of the first pressure sensor 84. If the rebound of the angle plate workpiece material is too large, the bending operation needs to be repeated until the bending angle of the angle plate workpiece material meets the working requirements, thereby completing the measurement of the rebound size of the angle plate workpiece material.

[0037] like Fig. 9 , Fig.10 A crack detection assembly 9 is installed on the upper side of the first connecting plate 408, and the crack detection assembly 9 includes a positioning rod 91 fixedly installed on the upper side of the first connecting plate 408, a sleeve plate 92 is slidably connected to the outer side of the positioning rod 91, and two sixth connecting rods 93 are slidably connected to the outer side of the sleeve plate 92, and a third connecting plate 94 is fixedly connected to the outer side of the two sixth connecting rods 93, and a third spring 95 is fixedly connected between the third connecting plate 94 and the sleeve plate 92, and a second pressure sensor 96 is also fixedly connected between the third connecting plate 94 and the sleeve plate 92, and a fourth connecting plate 99 is fixedly connected to the upper side of the positioning rod 91, and a fourth spring is fixedly connected between the fourth connecting plate 99 and the sleeve plate 92, and two first trapezoidal plates 97 are symmetrically fixedly connected to the lower side of the sleeve plate 92, and a second trapezoidal plate 98 is fixedly connected to the upper side of the control plate 409;

[0038] First, the second pressure sensor 96 is the same as the first pressure sensor 84, and both are common pressure sensors. Secondly, when the control plate 409 moves relative to the first connecting plate 408, the control plate 409 drives the second trapezoidal plate 98 to move. When the second trapezoidal plate 98 and the first trapezoidal plate 97 are against each other, the second trapezoidal plate 98 drives the sleeve plate 92 to move upward through the first trapezoidal plate 97. While the sleeve plate 92 compresses the fourth spring, it drives the third connecting plate 94 to move upward through the sixth connecting rod 93. When the bent angle plate workpiece is pulled out, the third The connecting plate 94 is always against the side wall of the angle plate workpiece, the third spring 95 is in a compressed state, and the second pressure sensor 96 sends out an electrical signal. If there is no crack on the side wall of the angle plate workpiece or the crack is small, then during the extraction of the angle plate workpiece, the electrical signal sent out by the second pressure sensor 96 is within a certain range. If there is a crack in the angle plate workpiece and the crack is large, the third connecting plate 94 will move relative to the sleeve plate 92, and the electrical signal sent out by the second pressure sensor 96 will change dramatically, thereby completing the detection operation of the side wall of the angle plate workpiece.

[0039] In the present invention, when it is necessary to perform a bending operation on the angle plate workpiece, the angle plate work material is placed on the fixed die 3, and the hydraulic equipment is started. The hydraulic equipment drives the movable die 2 to move downward, and the movable die 2 and the angle plate workpiece material are against each other, and the angle plate workpiece material is squeezed until the protrusion, the angle plate workpiece material, and the groove are against each other, thereby completing the bending processing operation of the angle plate workpiece material, and starting the hydraulic equipment again to move the movable die 2 upward back to the original position, and the processed material can be taken out, thereby completing the overall bending processing operation. The above are all existing technologies and no redundant elaboration is made;

[0040] When the angle plate workpiece material needs to be bent, the angle plate workpiece material is first placed between the two adjacent first clamping plates 405, and the angle plate workpiece material is placed on the upper side of the control plate 409, and the first connecting rod 404 is moved in the direction close to each other to reduce the distance between the two adjacent first clamping plates 405 until the two adjacent first clamping plates 405 and the angle plate workpiece material are butted against each other. At this time, the nut is screwed on the outside of the first connecting rod 404 until the nut and the first clamping plate 405 are butted against each other, thereby completing the clamping operation of the angle plate workpiece material. When the angle plate workpiece material is bent, the moving mold 2 is butted against the angle plate workpiece material and drives the angle plate workpiece material to move downward, and the angle plate workpiece material drives the first connecting plate 408, The second connecting rod 407 and the square block 410 move downward as a whole, and the square block 410 stretches the first spring 412. When the angle plate workpiece raw material is bent, the angle plate workpiece raw material will bend downward to form a certain angle, thereby causing the control plate 409 and the first connecting plate 408 that are against the angle plate workpiece raw material to rotate as a whole around the second connecting rod 407 as the center, thereby stretching the first torsion spring 411. After the bending operation of the angle plate workpiece raw material is completed, under the action of the first spring 412, the first connecting plate 408 and the angle plate workpiece raw material will move upward as a whole, so that the angle plate workpiece raw material is moved out of the fixed mold 3. At this time, the bent angle plate workpiece raw material can be pulled out, reducing the possibility of the angle plate workpiece raw material being squeezed and stuck in the fixed mold 3;

[0041] When the angle plate workpiece material and the control plate 409 and the first connecting plate 408 move downward as a whole, the control rods 72 on both sides are simultaneously against the arc blocks 75. When the control rods 72 and the arc blocks 75 are against each other, the arc blocks 75 hinder the control rods 72 from moving toward each other. When the control rods 72 stretch the second springs 73, the control plate 409 is driven to move through the third connecting rod 74. When the control rods 72 and the arc blocks 75 are disconnected, the control rods 72 are driven away from each other under the action of the second springs 73. The control rod 72 drives the control plate 409 to move in the direction away from each other through the third connecting rod 74. In the above working process, the two control plates 409 have the same force on the angle plate workpiece material but in opposite directions, so they cancel each other out and do not affect the angle plate workpiece material. However, after the angle plate workpiece material is bent, the angle plate workpiece material will form a certain angle. Since the control plate 409 is always against the angle plate workpiece material, the control plate 409 and the first connecting plate 408 will be in an inclined state. Figure 7, when the first connecting plate 408 and the control plate 409 rotate with the angle plate workpiece raw material, the first connecting plate 408 and the control plate 409 will rotate with the second connecting rod 407 as the center, resulting in that the control rods 72 on both sides will not be on the same horizontal line, and there is a certain height difference, but the arc blocks 75 are symmetrically arranged, that is, the arc blocks 75 opposite to each other on the two sides are on the same horizontal line, so in the process of the control plate 409 and the first connecting plate 408 moving upward, the control rods 72 and the arc blocks 75 on both sides will not contact at the same time, so During the overall upward movement of 08 and the control plate 409, only one of the control plates 409 will be moved, that is, the control plates 409 on both sides will not move at the same time. Therefore, the angle plate workpiece material will only be subjected to one force, which will cause the angle plate workpiece material to move and then shake. After the angle plate workpiece material is bent, there is a high probability that there will be processing weaknesses. A certain amount of shaking will magnify the weak points of the angle plate workpiece material. If the processing defects are large, the bent angle plate workpiece material will break during the movement, thereby completing the self-inspection operation of the angle plate workpiece material.

[0042] In the initial state, the first connecting plate 408 and the second connecting plate 83 are on the same horizontal plane, and the height of the first pressure sensor 84 is higher than the height of the control plate 409. Therefore, after the angle plate workpiece material is placed on the upper side of the control plate 409, the angle plate workpiece material will be against the first pressure sensor 84, thereby causing the first pressure sensor 84 to send out a corresponding electrical signal. When the angle plate workpiece material is bent, the angle plate workpiece material will drive the first pressure sensor 84 and the second connecting plate 83 to rotate clockwise around the second connecting rod 407. Due to the special shape of the ratchet 81, the fifth connecting rod 86 will not hinder the ratchet 81 from rotating clockwise. Rotation, but it will hinder the ratchet 81 from rotating counterclockwise. After the bending operation of the angle plate workpiece raw material is completed, the angle plate workpiece raw material will rebound to a certain extent under its own action, thereby causing the control plate 409 and the first connecting plate 408 to rotate slightly counterclockwise as a whole, thereby causing the force of the angle plate workpiece raw material on the first pressure sensor 84 to change. The size of the rebound of the angle plate workpiece raw material can be inferred through the size of the change in the electrical signal of the first pressure sensor 84. If the rebound of the angle plate workpiece raw material is too large, it is necessary to repeat the bending operation until the bending angle of the angle plate workpiece raw material meets the working requirements, thereby completing the measurement of the rebound size of the angle plate workpiece raw material.

[0043] When the control plate 409 moves relative to the first connecting plate 408, the control plate 409 drives the second trapezoidal plate 98 to move. When the second trapezoidal plate 98 and the first trapezoidal plate 97 are against each other, the second trapezoidal plate 98 drives the sleeve plate 92 to move upward through the first trapezoidal plate 97. While the sleeve plate 92 compresses the fourth spring, it drives the third connecting plate 94 to move upward through the sixth connecting rod 93. When the bent angle plate workpiece is pulled out, the third connecting plate 94 is always against the side wall of the angle plate workpiece, and the third spring 95 is in a compressed state. The second pressure sensor 96 sends an electrical signal. If there is no crack on the side wall of the angle plate workpiece or the crack is small, then during the process of pulling out the angle plate workpiece, the electrical signal sent by the second pressure sensor 96 is within a certain range. If there is a crack in the angle plate workpiece and the crack is large, the third connecting plate 94 will move relative to the sleeve plate 92, and the electrical signal sent by the second pressure sensor 96 will change dramatically, thereby completing the detection operation of the side wall of the angle plate workpiece.

Claims

1. A bending device for processing an angle plate workpiece for automobile reinforcement, comprising a main body (1), a movable die (2) and a fixed die (3), characterized in that: A clamping assembly (4) for a raw material of a corner plate workpiece to be processed is installed on the outside of the body (1), and the clamping assembly (4) comprises a through slot (401) provided on the side wall of the body (1), a plurality of square rods (402) are slidably connected in the through slot (401), both ends of the plurality of square rods (402) are rotatably connected to a rotating rod (403), a first connecting rod (404) is rotatably connected between two adjacent rotating rods (403), and a first connecting rod (404) is slidably connected to the outside of the first connecting rod (404). The clamping plate (405) is provided with a nut on the outer side of the first connecting rod (404) through a thread, a sliding groove (406) is provided on the side wall of the first clamping plate (405), a square block (410) is slidably connected in the sliding groove (406), a first spring (412) is fixedly connected between the square block (410) and the sliding groove (406), a second connecting rod (407) is rotatably connected to the outer side of the square block (410), a first connecting plate (408) is rotatably sleeved on the outer side of the second connecting rod (407), and the A first torsion spring (411) is fixedly connected between the first connecting plate (408) and the square block (410); two control plates (409) are slidably connected to the upper side of the first connecting plate (408); a control component (7) for controlling the shaking of the control plate (409) is installed in the sliding groove (406); the control component (7) comprises two control grooves (71) opened on the side wall of the first connecting plate (408); control rods (72) are slidably connected in the two control grooves (71); the control rods (72) and A second spring (73) is fixedly connected between the side walls of the control groove (71); an opening is formed on the upper side of the control groove (71); a third connecting rod (74) is fixedly connected to the upper side of the control rod (72); the third connecting rod (74) passes through the opening; the third connecting rod (74) and the control plate (409) are fixedly connected; a plurality of arc blocks (75) are symmetrically fixedly installed in the slide groove (406); and the control plate (409) can move the angle plate workpiece raw material, thereby promoting self-inspection of the angle plate workpiece raw material.

2. The bending equipment for processing the angle plate workpiece for automobile reinforcement according to claim 1 is characterized in that: A rebound detection assembly (8) is installed on the outer side of the first connecting plate (408), and the rebound detection assembly (8) includes a ratchet (81) rotatably installed on the outer side of the second connecting rod (407); a fourth connecting rod (82) is fixedly connected to the outer side of the ratchet (81); a second connecting plate (83) is fixedly connected to the outer side of the fourth connecting rod (82); a first pressure sensor (84) is fixedly connected to the upper side of the second connecting plate (83); a fixed plate (87) is fixedly connected to the end of the second connecting rod (407); a second torsion spring (85) is fixedly connected between the fixed plate (87) and the ratchet (81); a fifth connecting rod (86) is slidably connected to the side wall of the fixed plate (87); and a fifth spring is fixedly connected between the fifth connecting rod (86) and the fixed plate (87).

3. The bending equipment for processing the angle plate workpiece for automobile reinforcement according to claim 2 is characterized in that: A crack detection assembly (9) is installed on the upper side of the first connecting plate (408), and the crack detection assembly (9) comprises a positioning rod (91) fixedly installed on the upper side of the first connecting plate (408); a sleeve plate (92) is slidably connected to the outer side of the positioning rod (91); two sixth connecting rods (93) are slidably connected to the outer side of the sleeve plate (92); a third connecting plate (94) is fixedly connected to the outer side of the two sixth connecting rods (93); a third spring (95) is fixedly connected between the third connecting plate (94) and the sleeve plate (92); a second pressure sensor (96) is also fixedly connected between the third connecting plate (94) and the sleeve plate (92); a fourth connecting plate (99) is fixedly connected to the upper side of the positioning rod (91); a fourth spring is fixedly connected between the fourth connecting plate (99) and the sleeve plate (92); two first trapezoidal plates (97) are symmetrically fixedly connected to the lower side of the sleeve plate (92); and a second trapezoidal plate (98) is fixedly connected to the upper side of the control plate (409).

4. The bending equipment for processing the angle plate workpiece for automobile reinforcement according to claim 1 is characterized in that: A rubber pad is fixedly connected to the upper side of the control panel (409).

5. The bending equipment for processing the angle plate workpiece for automobile reinforcement according to claim 1 is characterized in that: The surfaces of the control rod (72) and the arc-shaped block (75) are both smooth.

6. The bending equipment for processing the angle plate workpiece for automobile reinforcement according to claim 1 is characterized in that: The body (1) is provided with limiting grooves (5) on both the front and rear sides, a plurality of limiting rods (6) are slidably connected in the limiting grooves (5), the plurality of limiting rods (6) and the first clamping plate (405) are matched one by one, and the plurality of limiting rods (6) and the first clamping plate (405) are fixedly connected.

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