Automatic bending equipment

Abstract

The utility model discloses automatic bending equipment which comprises a conveying mechanism, a feeding mechanism, a bending mechanism, a discharging mechanism and a rack, the conveying mechanism comprises a guiding device and a conveying belt used for conveying a to-be-bent part, the conveying belt can drive the to-be-bent part in the first direction so that the to-be-bent part can move to a first preset position, the to-be-bent part can penetrate through the guide device so as to adjust the included angle formed by the extending direction of the to-be-bent part and the first direction; the feeding mechanism drives a to-be-bent part to horizontally move to the bending mechanism; the bending mechanism comprises a positioning device, the positioning device can push the to-be-bent part translated by the feeding mechanism to a second preset position, and the bending mechanism can bend the to-be-bent part located at the second preset position; the discharging mechanism pushes the part to be bent to move in the first direction and break away from the bending mechanism. The machining precision of products is improved, the bending quality is better, and the automation degree is high.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of bending machines, and particularly relates to an automatic bending equipment. BACKGROUND

[0002] A fan flange is usually installed at the air inlet and outlet of a fan, and needs to be bent in the production process. In the existing fan flange processing process, the bending equipment usually needs to be manually operated, and the processing precision depends on manual adjustment. The bending size precision of the product is easily affected by operation errors, the bending processing quality is affected, the labor intensity of workers is increased, and the production efficiency is low. SUMMARY

[0003] The application provides an automatic bending equipment to solve the problems in the background.

[0004] To achieve the above-mentioned purpose, the technical scheme of the application is as follows: an automatic bending equipment is used for bending processing of a fan flange; the automatic bending equipment comprises a conveying mechanism, a feeding mechanism, a bending mechanism, a discharging mechanism and a rack, the conveying mechanism, the feeding mechanism, the bending mechanism and the discharging mechanism are all installed on the rack;

[0005] The conveying mechanism comprises a guide device and a conveying belt for conveying a to-be-bent piece, the conveying belt can drive the to-be-bent piece in a first direction, so that the to-be-bent piece moves to a first preset position, wherein the to-be-bent piece can pass through the guide device to adjust the included angle between the length direction of the to-be-bent piece and the first direction;

[0006] The feeding mechanism comprises a driving assembly and a gripper connected with each other, the gripper can grab the to-be-bent piece at the first preset position, and the driving assembly drives the to-be-bent piece to translate to the bending mechanism through the gripper;

[0007] The bending mechanism comprises a positioning device, the positioning device can push the to-be-bent piece translated by the feeding mechanism to a second preset position, and the bending mechanism can bend the to-be-bent piece at the second preset position;

[0008] The discharging mechanism comprises a fourth telescopic driving piece and a discharging part connected with each other, the fourth telescopic driving piece can drive the discharging part to move in the first direction, so that the discharging part pushes the to-be-bent piece to move in the first direction and away from the bending mechanism.

[0009] It can be understood that after the to-be-bent piece enters an automatic bending device, the processing position of the to-be-bent piece is adjusted through the guiding device and the positioning device in sequence, so as to improve the processing precision of the product and the bending processing quality, and the automatic bending device does not need manual feeding or discharging, has high automation degree, reduces the labor intensity of workers, and improves the production efficiency.

[0010] In one of the embodiments, the guiding device comprises two guiding plates which are arranged in a spaced manner and are formed with a guiding channel and a limiting channel, the guiding channel and the limiting channel are connected and communicated with each other, the width of the guiding channel gradually decreases along the first direction, the width of the limiting channel is uniform, and the channel wall of the limiting channel can be limitedly matched with the to-be-bent piece passing through along the width direction of the limiting channel.

[0011] It can be understood that in the process that the to-be-bent piece is driven by the conveying belt to pass through the guiding device, the to-be-bent piece passes through the guiding channel and the limiting channel in sequence, when the to-be-bent piece passes through the guiding channel, the width of the guiding channel gradually decreases, so that the to-be-bent piece is gradually limited by the guiding plates along the width direction, and when the to-be-bent piece enters the limiting channel, the channel wall of the limiting channel is limitedly matched with the to-be-bent piece in the width direction, so that the extension direction of the to-be-bent piece is parallel to the first direction, to facilitate subsequent processing.

[0012] In one of the embodiments, the positioning device comprises a positioning plate and a second telescopic driving piece, and the bending mechanism further comprises a positioning matching plate, the positioning plate is connected with the second telescopic driving piece, and the positioning plate can push the to-be-bent piece to abut against the positioning matching plate under the driving of the second telescopic driving piece, so that the to-be-bent piece is located at the second preset position.

[0013] It can be understood that through the cooperation of the positioning plate and the positioning matching plate, the to-be-bent piece is positioned to the second preset position, and the to-be-bent piece is bent at the second preset position, so as to ensure the accuracy of the bending processing.

[0014] In one of the embodiments, the conveying mechanism further comprises a limiting assembly, the limiting assembly comprises a limiting plate, and the limiting plate can abut against the to-be-bent piece located at the first preset position to limit the movement of the to-be-bent piece along the first direction.

[0015] It can be understood that the limiting assembly is arranged to avoid the to-be-bent piece from moving beyond the first preset position and separating from the automatic bending mechanism along with the conveying belt, which is beneficial to the accurate conveying of the to-be-bent piece to the first preset position by the conveying belt.

[0016] In one of the embodiments, the conveying mechanism further comprises a manual electromagnetic valve, which is electrically connected with the guide device and the limiting component respectively, and can control the ascending / descending of the guide plate and the limiting plate.

[0017] It can be understood that when the raw material without bending process passes through the conveying belt, the operator can manually control the ascending of the guide plate and the limiting plate through the manual electromagnetic valve to deliver the raw material out; when the raw material with bending process passes through the conveying belt, the operator can manually control the descending of the guide plate and the limiting plate through the manual electromagnetic valve to enable the raw material to be transferred to the bending mechanism by the feeding mechanism, so that the automatic bending equipment can adapt to different production requirements.

[0018] In one of the embodiments, the bending mechanism comprises an upper die, a lower die and a third telescopic driving member, the rack comprises a second mounting portion, the upper die, the lower die and the third telescopic driving member are all mounted on the second mounting portion, the upper die is located above the lower die, and the upper die can be driven by the third telescopic driving member to make ascending / descending movement relative to the lower die; when the upper die descends to the farthest distance, the upper die can cooperate with the lower die to bend the raw material located at the second preset position.

[0019] In one of the embodiments, the conveying mechanism further comprises a photoelectric switch, which can sense whether the raw material is located at the first preset position, and control whether the feeding mechanism grasps the raw material according to the sensing information.

[0020] It can be understood that when the photoelectric switch does not sense that the raw material is located at the first preset position, the feeding mechanism remains unchanged; when the photoelectric switch senses that the raw material is located at the first preset position, the feeding mechanism starts to grasp the raw material, so as to be conducive to improving the automation level of the automatic bending equipment.

[0021] In one of the embodiments, the rack comprises a first mounting portion, the driving assembly comprises a first air cylinder and a second air cylinder connected with each other, the first air cylinder is mounted on the first mounting portion, and the second air cylinder is connected with the first air cylinder and the gripper respectively, wherein the first air cylinder can drive the second air cylinder to move in the second direction, and the second air cylinder can drive the gripper to move vertically to the horizontal plane.

[0022] It can be understood that the first air cylinder can drive the raw material to move in the second direction, and the second air cylinder can drive the raw material to move up and down in the direction perpendicular to the horizontal plane, so that the raw material can be lifted and translated to the bending mechanism in the second direction through the movement cooperation of the first air cylinder and the second air cylinder.

[0023] It can be understood that the gripper is arranged as a vacuum chuck, facilitating the grabbing of the to-be-bent piece.

[0024] In one of the embodiments, the conveying mechanism is arranged as a belt conveyor.

[0025] It can be understood that the belt conveyor can connect different production processes, realize the automatic circulation of the semi-finished product, improve the automation degree of the automatic bending equipment, and has low maintenance cost.

[0026] Effects of the present application:

[0027] The present application adjusts the processing position of the to-be-bent piece through the arrangement of the guiding device and the positioning device, so as to improve the processing precision of the product, improve the bending processing quality, and make the fan flange edge bending processing flow automatic through the cooperation of the conveying mechanism, the feeding mechanism and the discharging mechanism, without manual feeding or discharging, thereby reducing the labor intensity of workers, improving the production efficiency, and improving the automation degree of the automatic bending equipment. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0029] Figure 1 is a perspective view of an automatic bending equipment in the present application;

[0030] Figure 2 is a structural schematic view of the automatic bending equipment in one view in the present application;

[0031] Figure 3 is a structural schematic view of the automatic bending equipment in another view in the present application;

[0032] Figure 4 is a structural schematic view of the conveying mechanism in the present application;

[0033] Figure 5 is a structural schematic view of the feeding mechanism in the present application;

[0034] Figure 6 is a structural schematic view of the bending mechanism in the present application;

[0035] Figure 7 is a structural schematic view of the discharging mechanism in the present application.

[0036] 100, an automatic bending device; 10, a conveying mechanism; 11, a guide device; 111, a guide plate; 112, a guide channel; 113, a limiting channel; 12, a conveying belt; 13, a limiting assembly; 131, a limiting plate; 132, a first telescopic driving member; 14, a manual electromagnetic valve; 15, a photoelectric switch; 20, a feeding mechanism; 21, a driving assembly; 211, a first air cylinder; 212, a second air cylinder; 22, a gripper; 221, a vacuum chuck; 30, a bending mechanism; 31, a positioning device; 311, a positioning plate; 312, a second telescopic driving member; 32, a positioning matching plate; 33, an upper die; 34, a lower die; 35, a third telescopic driving member; 40, a discharging mechanism; 41, a fourth telescopic driving member; 42, a discharging part; 50, a rack; 51, a first mounting part; 52, a second mounting part; 200, a piece to be bent. DETAILED DESCRIPTION

[0037] The application will be further described in conjunction with the drawings.

[0038] Please refer to Figures 1 to 3 , the application provides an automatic bending device 100, which mainly automatically bends the flange edge of the air inlet and outlet of a fan.

[0039] An automatic bending device 100 comprises a conveying mechanism 10, a feeding mechanism 20, a bending mechanism 30, a discharging mechanism 40 and a rack 50, the conveying mechanism 10, the feeding mechanism 20, the bending mechanism 30 and the discharging mechanism 40 are all mounted on the rack 50, the rack 50 comprises a first mounting part 51 and a second mounting part 52, the feeding mechanism 20 is mounted on the first mounting part 51, and the bending mechanism 30 is mounted on the second mounting part 52.

[0040] As shown in Figure 1 , Figure 3 and Figure 4 , the conveying mechanism 10 comprises a guide device 11 and a conveying belt 12 for conveying a piece to be bent 200, the conveying belt 12 can drive the piece to be bent 200 in a first direction, so that the piece to be bent 200 moves to a first preset position, wherein the piece to be bent 200 can pass through the guide device 11 to adjust the included angle between the length direction of the piece to be bent 200 and the first direction. After the piece to be bent 200 enters the automatic bending device 100, the processing position of the piece to be bent 200 is adjusted through the guide device 11 and the positioning device in sequence, so as to improve the processing precision of the product, improve the bending processing quality, and the automatic bending device 100 does not need manual feeding or discharging, has high automation degree, reduces the labor intensity of workers and improves the production efficiency.

[0041] In the embodiment, the first direction is consistent with the extension direction of the conveying belt 12, and the length direction of the to-be-bent piece 200 is consistent with the extension direction of the conveying belt 12, so that the included angle between the length direction of the to-be-bent piece 200 and the first direction is 0°. Not limited to this, in other embodiments, the included angle between the length direction of the to-be-bent piece 200 and the first direction can also be set to other angles, which can be adjusted according to actual production needs.

[0042] In an embodiment, the guide device 11 includes two guide plates 111, which are arranged at intervals and form a guide channel 112 and a limiting channel 113. The guide channel 112 and the limiting channel 113 are connected and communicated with each other, and the channel wall of the guide channel 112 and the channel wall of the limiting channel 113 are smoothly transitioned. The guide plate 111 located on one side of the guide channel 112 gradually reduces in thickness along the width direction of the guide channel 112, so that the guide channel 112 is in a flared shape. In the first direction, the width of the guide channel 112 gradually decreases, the width of the limiting channel 113 is consistent, and along the width direction of the limiting channel 113, the channel wall of the limiting channel 113 can be limitedly matched with the to-be-bent piece 200 passing through.

[0043] The two guide plates 111 have a gap with the conveying belt 12, so that the conveying belt 12 does not interfere with the guide plate 111 during operation. During production, the to-be-bent piece 200 driven by the conveying belt 12 passes through the guide device 11 in sequence, and when the to-be-bent piece 200 passes through the guide channel 112, the width of the guide channel 112 gradually decreases, and the gap between the channel wall of the guide channel 112 and the to-be-bent piece 200 gradually decreases, so that the to-be-bent piece 200 is gradually limited in the width direction by the guide plate 111, and when entering the limiting channel 113, it is limitedly matched with the channel wall of the limiting channel 113 in the width direction, so that the extension direction of the to-be-bent piece 200 is parallel to the first direction, facilitating subsequent processing, and the cost of the guide device 11 is relatively low.

[0044] Not limited to this, in other embodiments, the guide device 11 can also be provided as a structure combined with an industrial camera and a mechanical arm, and the position and direction of the to-be-bent piece 200 are recognized by the industrial camera, and the position and direction of the to-be-bent piece 200 are adjusted by the mechanical arm.

[0045] In an embodiment, the conveying mechanism 10 further includes a limiting assembly 13, and the limiting assembly 13 includes a limiting plate 131 and a first telescopic driving member 132. The limiting plate 131 is connected with the first telescopic driving member 132, the first telescopic driving member 132 can move in the height direction of the conveying mechanism 10, and the limiting plate 131 can move in the height direction of the conveying mechanism 10 under the drive of the first telescopic driving member 132.

[0046] In the bending process, the limiting plate 131 moves downward to the farthest distance, so that the limiting plate 131 can abut against the workpiece 200 located at the first preset position to limit the movement of the workpiece 200 along the first direction, avoiding the workpiece 200 from moving beyond the first preset position along with the conveying belt 12 and separating from the automatic bending mechanism 30, which is beneficial for the workpiece 200 to be accurately conveyed to the first preset position by the conveying belt.

[0047] In the embodiment, the first telescopic driving member 132 is a pneumatic cylinder. However, the first telescopic driving member 132 can also be a linear motor or a hydraulic cylinder in other embodiments, which can be selected according to actual needs.

[0048] In an embodiment, the conveying mechanism 10 further comprises a manual electromagnetic valve 14, which is electrically connected with the guide device 11 and the limiting assembly 13 respectively and can control the lifting / dropping of the guide plate 111 and the limiting plate 131. When the raw material that does not need to be bent passes through the conveying belt 12, the operator can manually control the guide plate 111 and the limiting plate 131 to rise by the manual electromagnetic valve 14, so as to convey the raw material out; when the raw material that needs to be bent passes through the conveying belt 12, the operator can manually control the guide plate 111 and the limiting plate 131 to drop by the manual electromagnetic valve 14, so that the raw material can be transferred to the bending mechanism 30 by the feeding mechanism 20 for processing, thus making the automatic bending equipment 100 adapt to different production needs.

[0049] In an embodiment, the conveying mechanism 10 further comprises a photoelectric switch 15, which can sense whether the workpiece 200 is located at the first preset position and control whether the feeding mechanism 20 grabs the workpiece 200 according to the sensing information. During production, when the photoelectric switch 15 does not sense that the workpiece 200 is located at the first preset position, the feeding mechanism 20 remains unchanged; when the photoelectric switch 15 senses that the workpiece 200 is located at the first preset position, the feeding mechanism 20 starts to grab the workpiece 200, thus being beneficial for improving the automation level of the automatic bending equipment 100.

[0050] In the embodiment, the conveying mechanism 10 is a belt conveyor. The belt conveyor can connect different production processes to realize the automatic circulation of semi-finished products and improve the automation degree of the automatic bending equipment 100, and has low maintenance cost. However, the conveying mechanism 10 can also be a chain conveyor in other embodiments.

[0051] As Figure 5As shown in the drawings, in an embodiment, the feeding mechanism 20 comprises a driving assembly 21 and a gripper 22 connected with each other, the gripper 22 is capable of grabbing the workpiece 200 located at the first preset position, and the driving assembly 21 drives the workpiece 200 to move to the bending mechanism 30 through the gripper, so as to send the workpiece 200 to the bending mechanism 30 for bending processing.

[0052] As shown in the drawings, Figure 1 and Figure 3 As shown in the drawings, in the embodiment, the feeding mechanism 20 comprises a first mounting portion 51 fixedly installed on the rack 50. The driving assembly 21 comprises a first cylinder 211 and a second cylinder 212 connected with each other, the first cylinder 211 is installed on the first mounting portion 51, and the second cylinder 212 is connected with the first cylinder 211 and the gripper 22 respectively. The first cylinder 211 is capable of driving the second cylinder 212 to move along a second direction, the second direction is consistent with the extension direction of the first cylinder 211 and perpendicular to the first direction, and the second cylinder 212 is capable of driving the gripper 22 to move perpendicular to the horizontal plane, so that the first cylinder 211 can drive the workpiece 200 to move along the second direction, and the second cylinder 212 can drive the workpiece 200 to move up and down along the direction perpendicular to the horizontal plane. Through the movement cooperation of the first cylinder 211 and the second cylinder 212, the workpiece 200 can be lifted and translated along the second direction to the bending mechanism 30.

[0053] In the embodiment, the number of the second cylinders 212 is set to two, and the two second cylinders 212 are arranged along the second direction and are capable of moving along the second direction, so as to improve the efficiency of grabbing the workpiece 200. Of course, in other embodiments, the number of the second cylinders 212 can also be set to one.

[0054] Without limitation, in other embodiments, the driving assembly 21 can also be set to a mechanical hand or a driving motor, which can be selected according to actual needs.

[0055] In an embodiment, the gripper 22 is set to a vacuum suction cup 221, which is convenient for grabbing the workpiece 200. The number of the vacuum suction cups 221 is multiple, and the multiple vacuum suction cups 221 are arranged along the length direction of the workpiece 200, so that the workpiece 200 can be stably moved to the bending mechanism 30.

[0056] In the embodiment, the number of the vacuum suction cups 221 is set to two, which is beneficial to save cost. Of course, in other embodiments, the number of the vacuum suction cups 221 can also be set to three or four, which can be selected according to actual needs, and is not limited herein.

[0057] Not limited to this, in other embodiments, the gripper 22 can also be provided as a magnetic chuck, an electrostatic chuck or a pneumatic gripper, etc., which can be selected according to actual needs.

[0058] As shown in the drawings, Figure 6 In an embodiment, the bending mechanism 30 includes a positioning device 31, which can push the to-be-bent piece 200 transferred by the feeding mechanism 20 to a second preset position, so that the bending mechanism 30 can bend the to-be-bent piece 200 located at the second preset position.

[0059] As shown in the drawings, Figure 2 Further, the bending mechanism 30 includes an upper die 33, a lower die 34 and a third telescopic driving piece 35, the rack 50 includes a second mounting portion 52, the upper die 33, the lower die 34 and the third telescopic driving piece 35 are all mounted on the second mounting portion 52, the upper die 33 is located above the lower die 34, and the upper die 33 can be driven by the third telescopic driving piece 35 to make lifting movement relative to the lower die 34, when the upper die 33 is lowered to the farthest distance, the upper die 33 can cooperate with the lower die 34 to bend the to-be-bent piece 200 located at the second preset position, so as to realize the bending processing of the to-be-bent piece 200.

[0060] In this embodiment, the third telescopic driving piece 35 is provided as an oil cylinder. Not limited to this, in other embodiments, the third telescopic driving piece 35 can also be provided as a hydraulic motor or a linear motor, etc., which can be selected according to actual needs.

[0061] In an embodiment, the positioning device 31 includes a positioning plate 311 and a second telescopic driving piece 312, and the bending mechanism 30 further includes a positioning cooperation plate 32, the positioning plate 311 is connected with the second telescopic driving piece 312, and the positioning plate 311 can be driven by the second telescopic driving piece 312 to push the to-be-bent piece 200 to abut against the positioning cooperation plate 32, so as to make the to-be-bent piece 200 located at the second preset position, and ensure the precision of the bending processing.

[0062] In this embodiment, the second telescopic driving piece 312 is provided as an air cylinder, not limited to this, in other embodiments, the second telescopic driving piece 312 can also be provided as a linear motor or a hydraulic cylinder, etc., which can be selected according to actual needs, and is not limited herein.

[0063] As shown in the drawings, Figure 7 In an embodiment, the discharging mechanism 40 includes a fourth telescopic driving piece 41 and a discharging portion 42 connected with each other, the fourth telescopic driving piece 41 can drive the discharging portion 42 to move along the first direction, so as to make the discharging portion 42 push the to-be-bent piece 200 to move along the first direction and separate from the bending mechanism 30.

[0064] In the embodiment, the fourth telescopic driving member 41 is a pneumatic cylinder. However, the fourth telescopic driving member can also be a linear motor or a hydraulic cylinder in other embodiments, which can be selected according to actual needs.

[0065] In the embodiment, the blanking mechanism 40 is located between the bending mechanism 30 and the feeding mechanism 20, so that the automatic bending equipment 100 has a compact structure and a small footprint.

[0066] In summary, the to-be-bent piece 200 is cut by the flange edge cutting machine in the previous process, and the cut to-be-bent piece 200 is transported on the conveying belt 12. After passing through the guide device 11, the included angle between the length direction of the to-be-bent piece 200 and the first direction is adjusted to 0°. When the to-be-bent piece 200 is transported to the first preset position, the to-be-bent piece 200 is limited by the limiting plate 131. At this time, the photoelectric switch 15 detects the to-be-bent piece 200, and at the same time, feeds back a signal to the feeding mechanism 20, so that the feeding mechanism 20 controls the driving assembly 21 and the gripper 22 to grab the to-be-bent piece 200 to the bending mechanism 30. When the to-be-bent piece 200 is transported to the bending mechanism 30, the gripper 22 releases the to-be-bent piece 200 and the driving assembly 21 returns to the original position. After the to-be-bent piece 200 enters the bending mechanism 30, the second telescopic driving member 312 drives the positioning plate 311 to push the to-be-bent piece 200 to the second preset position, and then the positioning device resets. Then, the upper die 33 is pressed down to the to-be-bent piece 200 under the driving of the third telescopic driving member 35, so that the upper die 33 cooperates with the lower die 34 to stamp and bend the to-be-bent piece 200, and then the third telescopic driving member 35 returns to the original position. The bent to-be-bent piece 200 is pushed out by the blanking mechanism 40, and then the blanking mechanism 40 resets to enter the next cycle.

[0067] Any combination of the technical features in the above-described embodiments can be made. In order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.

[0068] The above-described embodiments only express several implementation manners of the application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent application scope. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the application, several modifications and improvements can be made, which are within the protection scope of the application. Therefore, the patent protection scope of the application should be subject to the appended claims.

Claims

1. An automatic bending device for bending the flange edge of a fan; characterized in that: The automatic bending equipment (100) comprises a conveying mechanism (10), a feeding mechanism (20), a bending mechanism (30), a discharging mechanism (40) and a rack (50), wherein the conveying mechanism (10), the feeding mechanism (20), the bending mechanism (30) and the discharging mechanism (40) are all installed on the rack (50); The conveying mechanism (10) comprises a guide device (11) and a conveying belt (12) for conveying a piece to be bent (200), the conveying belt (12) can drive the piece to be bent (200) in a first direction, so that the piece to be bent (200) moves to a first preset position, wherein the piece to be bent (200) can pass through the guide device (11) to adjust the included angle between the length direction of the piece to be bent (200) and the first direction; The feeding mechanism (20) comprises a driving assembly (21) and a gripper (22) connected with each other, the gripper (22) can grab the piece to be bent (200) located at the first preset position, and the driving assembly (21) drives the piece to be bent (200) to translate to the bending mechanism (30) through the gripper (22); The bending mechanism (30) comprises a positioning device (31), the positioning device (31) can push the piece to be bent (200) translated by the feeding mechanism (20) to a second preset position, and the bending mechanism (30) can bend the piece to be bent (200) located at the second preset position; The discharging mechanism (40) comprises a fourth telescopic driving member (41) and a discharging part (42) connected with each other, the fourth telescopic driving member (41) can drive the discharging part (42) to move in the first direction, so that the discharging part (42) pushes the piece to be bent (200) to move in the first direction and separate from the bending mechanism (30).

2. The automatic bending apparatus according to claim 1, characterized by: The guide device (11) comprises two guide plates (111), the two guide plates (111) are arranged at intervals and form a guide channel (112) and a limiting channel (113), the guide channel (112) and the limiting channel (113) are connected with each other and communicate with each other, the width of the guide channel (112) gradually decreases along the first direction, the width of the limiting channel (113) is uniform, and along the width direction of the limiting channel (113), the channel wall of the limiting channel (113) can be limitedly matched with the piece to be bent (200) passing through.

3. The automatic bending apparatus according to claim 1, characterized by: The positioning device (31) comprises a positioning plate (311) and a second telescopic driving member (312), and the bending mechanism (30) further comprises a positioning matching plate (32), the positioning plate (311) is connected with the second telescopic driving member (312), and the positioning plate (311) can push the piece to be bent (200) to abut against the positioning matching plate (32) under the driving of the second telescopic driving member (312), so that the piece to be bent (200) is located at the second preset position.

4. The automatic bending apparatus according to claim 2, characterized by: The conveying mechanism (10) further comprises a limiting assembly (13), the limiting assembly (13) comprises a limiting plate (131), the limiting plate (131) can abut against the workpiece (200) located at the first preset position, so as to limit the movement of the workpiece (200) along the first direction.

5. The automatic bending apparatus according to claim 4, characterized in that: The conveying mechanism (10) further comprises a manual electromagnetic valve (14), the manual electromagnetic valve (14) is electrically connected with the guide device (11) and the limiting assembly (13) respectively, and can control the lifting / descending of the guide plate (111) and the limiting plate (131).

6. The automatic bending apparatus according to claim 1, characterized by: The bending mechanism (30) comprises an upper die (33), a lower die (34) and a third telescopic driving member (35), the rack (50) comprises a second mounting portion (52), the upper die (33), the lower die (34) and the third telescopic driving member (35) are all mounted on the second mounting portion (52), the upper die (33) is located above the lower die (34), and the upper die (33) can be lifted and lowered relative to the lower die (34) under the driving of the third telescopic driving member (35), when the upper die (33) is lowered to the farthest distance, the upper die (33) can cooperate with the lower die (34) to bend the workpiece (200) located at the second preset position.

7. The automatic bending apparatus according to claim 1, characterized by: The conveying mechanism (10) further comprises a photoelectric switch (15), the photoelectric switch (15) can sense whether the workpiece (200) is located at the first preset position, and control whether the feeding mechanism (20) grasps the workpiece (200) according to the sensing information.

8. The automatic bending apparatus according to claim 1, characterized by: The rack (50) comprises a first mounting portion (51), the driving assembly (21) comprises a first air cylinder (211) and a second air cylinder (212) connected with each other, the first air cylinder (211) is mounted on the first mounting portion (51), and the second air cylinder (212) is connected with the first air cylinder (211) and the gripper (22) respectively, wherein the first air cylinder (211) can drive the second air cylinder (212) to move along a second direction, and the second air cylinder (212) can drive the gripper (22) to move perpendicularly to a horizontal plane.

9. The automatic bending apparatus according to claim 1, characterized by: The gripper (22) is a vacuum suction disc (221).

10. The automatic bending apparatus according to claim 1, characterized by: The conveying mechanism (10) is a belt conveyor.

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