Turnover mechanism matched with plate processing and forming machine tool

Abstract

The invention relates to the technical field of conveying structures, in particular to a plate processing and forming machine tool matched turnover mechanism which comprises two conveying belts distributed front and back and a turnover unit located between the two conveying belts, the two conveying belts are used for horizontally conveying plates, and the turnover unit is used for turning over the plates on the two conveying belts; the overturning unit comprises a rack, a main wheel, two push-pull rods and two brackets, wherein the main wheel, the two push-pull rods and the two brackets are arranged on the rack. The rack is used for lifting the main wheel, the push-pull rods and the brackets. According to the turnover mechanism provided by the invention, only one set of main wheel is needed to serve as a driving system, the turnover action of the plate can be completed, and compared with the traditional mode that at least two mechanical arms are needed to be matched, the equipment purchase and maintenance cost is remarkably reduced; by means of the design of the mechanism, the plates are allowed to be overturned in the conveying process, the problem that conveying must be stopped when the plates are overturned in a traditional mode is solved, the plate conveying efficiency is effectively improved, and the waiting time in the production process is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of conveying structures, in particular to a turning mechanism matched with a plate processing and forming machine tool. Background Art

[0002] With the development of manufacturing industry, sheet metal processing technology plays an increasingly important role in industries such as automobile manufacturing, home appliance production, and architectural decoration. During sheet metal processing, it is often necessary to flip the sheet metal over to complete double-sided processing or meet specific design requirements. The traditional flipping method is to use a robotic arm to grab the sheet metal from the conveyor belt, and then use another robotic arm to flip the sheet metal over, and then put the sheet metal back on the conveyor belt. This flipping method requires at least two robotic arms to cooperate to complete the work, and its cost investment is relatively high. In addition, the sheet metal cannot be transported when it is flipped, that is, the sheet metal cannot be transported and flipped at the same time. Therefore, it will cause delays in the sheet metal transportation work and affect the sheet metal transportation efficiency. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a turning mechanism for a sheet metal processing and forming machine tool, and the specific technical solution adopted is: According to a first aspect of the present invention, there is provided a turning mechanism for a sheet metal processing and forming machine tool, comprising two conveyor belts distributed front and back and a turning unit located in the middle of the two conveyor belts, the two conveyor belts are used for horizontally conveying sheets, and the turning unit is used for turning over the sheets on the two conveyor belts; The flip unit comprises a frame and a main wheel arranged on the frame, two push-pull rods and two brackets, the frame is used to lift the main wheel, the push-pull rod and the bracket, the main wheel axis is horizontal and perpendicular to the conveying direction of the conveyor belt, the two push-pull rods are arranged on the two end surfaces of the main wheel, and the push-pull rods are eccentrically connected to the main wheel, the two brackets are distributed front and back on the frame, and the two brackets are rotatably mounted on the frame, and the push-pull rods are rotatably connected to the brackets; When the main wheel rotates, the main wheel drives the two brackets to rotate synchronously in opposite directions through two push-pull rods, and the two brackets gradually rotate from a horizontal open state to a vertical closed state.

[0004] Furthermore, the bracket is composed of a rotating shaft rotatably inserted into the frame, an oblique arm fixed on the rotating shaft, and a supporting arm slidably mounted on the oblique arm, and the oblique arm and the supporting arm are connected by a spring sheet; The support arm is used to carry the plate, and the inclined arm is used to connect with the push-pull rod. In the natural state, the support arm is horizontal, and the inclined arm is inclined toward the side away from the support arm.

[0005] Furthermore, an auxiliary arm is rolled on the side wall of the supporting arm, and a plurality of suction cups are arranged on the supporting arm and the auxiliary arm, and the plurality of suction cups are interconnected.

[0006] Furthermore, the bracket also includes a limiting plate for limiting the inclined arm, and the limiting plate is fixed on the frame. When the inclined arm contacts the limiting plate, the bracket arm is horizontal.

[0007] Furthermore, the push-pull rod is a telescopic rod, and a spring is arranged inside the telescopic rod. In a natural state, the spring pushes the telescopic rod to extend to a maximum length.

[0008] Furthermore, a worm gear is arranged on the circumferential outer wall of the main wheel, a circular groove is opened in the middle of the circumferential outer wall of the main wheel, a clamping plate is arranged in the circular groove, the bottom of the clamping plate is fixed on the frame, a motor is arranged on the frame, a worm is arranged at the output end of the motor, and the worm is meshed with the worm gear on the main wheel.

[0009] Furthermore, the bracket also includes an inclined slot provided on the frame, a baffle is slidably arranged in the inclined slot, and the baffle is connected to the frame via a leaf spring; The baffle is used to block the plate on the conveyor belt. When the bracket flips the plate, the plate overcomes the elastic force of the leaf spring and pushes the baffle to move.

[0010] Further, the rotating shaft is hollow; The bracket also includes an electromagnetic control valve fixed on the frame, one input end of the electromagnetic control valve is connected to the outside air, the other input end of the electromagnetic control valve is connected to the inside of the rotating shaft, the output end of the electromagnetic control valve is connected to the external suction pump, the interior of the support arm is hollow, the interior of the support arm is connected to the suction cup on the support arm and the suction cup on the auxiliary arm, and the interior of the rotating shaft is connected to the interior of the support arm through an air pipe.

[0011] The beneficial effects of the present invention are: The flipping mechanism provided by the present invention only needs one set of main wheels as the driving system to complete the flipping action of the plate. Compared with the traditional method that requires the cooperation of at least two robotic arms, the cost of equipment purchase and maintenance is significantly reduced; the design of the mechanism allows the plate to be flipped during the conveying process, avoiding the problem that the conveying must be stopped when the plate is flipped in the traditional method, effectively improving the plate conveying efficiency and reducing the waiting time in the production process; since the main wheel only needs to rotate in one direction to achieve the flipping of the plate, the control of the entire system becomes simpler, and no complicated program is required to control the forward and reverse rotation, which reduces the design difficulty of the control system, and its structure is simple and easy to operate. The entire flipping mechanism is relatively compact and occupies a small space, which is easy to integrate into the existing production line without significantly changing the existing equipment layout; since the main wheel rotates continuously, the two brackets can continuously flip the plate, making the entire plate processing process smoother and improving the overall operation efficiency of the production line; in summary, the technical solution not only solves the problems existing in the traditional plate flipping process, but also further optimizes the plate processing process and enhances the economy and practicality of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 is a schematic structural diagram of a flip unit in an embodiment of the present invention; Figure 3 is a schematic structural diagram of a bracket in an embodiment of the present invention; Figure 4 yes Figure 3 A schematic diagram of the structure from another perspective; Figure 5 Schematic diagram of the structure of the main wheel in an embodiment of the present invention.

[0014] Reference numerals: 1. Conveyor belt; 2. Turning unit; 3. Frame; 4. Main wheel; 5. Push-pull rod; 6. Bracket; 7. Rotating shaft; 8. Inclined arm; 9. Support arm; 10. Shrapnel; 11. Auxiliary arm; 12. Suction cup; 13. Limit plate; 14. Clamp plate; 15. Motor; 16. Worm; 17. Baffle; 18. Leaf spring; 19. Solenoid control valve; 20. Air pipe. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0016] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. This embodiment is written in a progressive manner.

[0018] like Figures 1 to 5 As shown, a turning mechanism for a plate processing and forming machine tool of the present invention comprises two conveyor belts 1 distributed front and back and a turning unit 2 located in the middle of the two conveyor belts 1. The two conveyor belts 1 are used for horizontally conveying plates, and the turning unit 2 is used for turning over the plates on the two conveyor belts 1. The flip unit 2 includes a frame 3 and a main wheel 4, two push-pull rods 5 and two brackets 6 arranged on the frame 3. The frame 3 is used to lift the main wheel 4, the push-pull rods 5 and the brackets 6. The axis of the main wheel 4 is horizontal and perpendicular to the conveying direction of the conveyor belt 1. The two push-pull rods 5 are respectively arranged on the two end surfaces of the main wheel 4, and the push-pull rods 5 are eccentrically connected to the main wheel 4. The two brackets 6 are distributed front and back on the frame 3, and the two brackets 6 are rotatably installed on the frame 3, and the push-pull rods 5 are rotatably connected to the brackets 6; When the main wheel 4 rotates, the main wheel 4 drives the two brackets 6 to rotate synchronously in opposite directions through the two push-pull rods 5, and the two brackets 6 gradually rotate from a horizontal open state to a vertical closed state.

[0019] In detail, the two conveyor belts 1 are used to convey the plates horizontally. When the plates are conveyed to the position of the flipping unit 2, the flipping unit 2 turns the plates over, and the upper surface of the original plates faces downward and contacts the conveyor belt 1. The conveyor belt 1 conveys the plates. In this process, the plates are continuously conveyed horizontally, so the plates in motion can be flipped. The frame 3 provides support positions for the main wheels 4, push-pull rods 5 and brackets 6. The two push-pull rods 5 are respectively located on the front and rear end surfaces of the main wheels 4, and the two push-pull rods 5 are respectively connected to the two brackets 6. The two brackets 6 are relative to each other on the frame 3. In the natural state, the upper surface of the bracket 6 is lower than the upper surface of the conveyor belt 1, the two push-pull rods 5 are horizontal, and the push-pull rods 5 and the center point of the main wheels 4 are on the same horizontal plane, so that the initial positions of the two brackets 6 can be limited.

[0020] When it is necessary to flip the plate, the plate is transported to the position of a bracket 6 through two conveyor belts 1. At this time, the main wheel 4 rotates, and the main wheel 4 drives the two brackets 6 to rotate synchronously in the opposite direction through two push-pull rods 5. The two brackets 6 rotate upward in the opposite direction from the horizontal state, that is, the two brackets 6 gradually change from the open state to the closed state. One bracket 6 lifts and flips the plate on the conveyor belt 1 during the upward flipping process. When the two brackets 6 approach and contact the plate at the same time, due to the inertia of the plate movement, the plate will be transferred from one bracket 6 to the other bracket 6, thereby realizing the position exchange of the plate on the two brackets 6, and the direction of the plate changes. At this time, the main wheel 4 pushes the bracket 6 to rotate to the maximum angle, and then the main wheel 4 continues to rotate and pulls the bracket 6 to reset. The bracket 6 will carry the plate to gradually become horizontal and place the plate on the conveyor belt 1, thereby realizing the flipping of the plate, and in this process, the plate continues to move in position, thereby realizing the simultaneous and continuous motion mode of plate transportation and flipping.

[0021] It should be pointed out that since the main wheel 4 rotates continuously, the two brackets 6 move continuously and continuously transport and flip multiple plates on the conveyor belt 1, thereby improving the continuity of the work, and since the main wheel 4 only needs to rotate in one direction, its operation is more convenient, and there is no need to control the forward and reverse rotation of the motor or the cumbersome operation of controlling the forward and reverse rotation of the main wheel 4, thereby simplifying the structure and operation method.

[0022] The flipping mechanism provided by the present invention only needs one set of main wheels 4 as the driving system to complete the flipping action of the plate. Compared with the traditional method that requires the cooperation of at least two robotic arms, the cost of equipment purchase and maintenance is significantly reduced; the design of the mechanism allows the plate to be flipped during the conveying process, avoiding the problem that the conveying must be stopped when the plate is flipped in the traditional method, effectively improving the plate conveying efficiency and reducing the waiting time in the production process; since the main wheel 4 only needs to rotate in one direction to achieve the flipping of the plate, the control of the entire system becomes simpler, and no complicated program is required to control the forward and reverse rotation, which reduces the design difficulty of the control system, and its structure is simple and easy to operate. The entire flipping mechanism structure is relatively compact and occupies a small space, which is easy to integrate into the existing production line without significantly changing the existing equipment layout; since the main wheel 4 rotates continuously, the two brackets 6 can continuously flip the plate, making the entire plate processing process smoother and improving the overall operation efficiency of the production line; in summary, this technical solution not only solves the problems existing in the traditional plate flipping process, but also further optimizes the plate processing process and enhances the economy and practicality of the system.

[0023] Furthermore, the bracket 6 is composed of a rotating shaft 7 rotatably inserted on the frame 3, an oblique arm 8 fixed on the rotating shaft 7, and a supporting arm 9 slidably mounted on the oblique arm 8, and the oblique arm 8 and the supporting arm 9 are connected by a spring sheet 10; The supporting arm 9 is used to carry the plate, and the oblique arm 8 is used to connect with the push-pull rod 5. In the natural state, the supporting arm 9 is horizontal, and the oblique arm 8 is inclined toward the side away from the supporting arm 9.

[0024] In detail, the rotating shaft 7 supports the inclined arm 8 and the supporting arm 9, and the rotating shaft 7 serves as a fulcrum to enable the bracket 6 to rotate normally. The supporting arm 9 can slide on the inclined arm 8 in a prescribed manner, and the spring sheet 10 can provide an elastic thrust for the supporting arm 9. When the push-pull rod 5 pulls the inclined arm 8 to rotate, the inclined arm 8 will drive the rotating shaft 7 and the supporting arm 9 to rotate synchronously, and the supporting arm 9 can lift the plate and flip it.

[0025] When plates of different thicknesses need to be turned over, since the space between the two brackets 6 when closed is the thickness of the plate, the support arm 9 needs to be able to slide on the inclined arm 8, and the spring sheet 10 can provide a restoring elastic force for the support arm 9.

[0026] Furthermore, an auxiliary arm 11 is rolled on the side wall of the supporting arm 9 , and a plurality of suction cups 12 are provided on both the supporting arm 9 and the auxiliary arm 11 , and the plurality of suction cups 12 are interconnected.

[0027] In detail, a plurality of suction cups 12 are provided on the supporting arm 9 and the auxiliary arm 11, and a chamber is provided in the middle of the supporting arm 9, which is connected to each suction cup 12, so that when the supporting arm 9 moves, the supporting arm 9 can drive the plate to move synchronously, and the suction cups 12 can adsorb and fix the plate, thereby preventing the plate from slipping.

[0028] When the plate is exchanged between the two brackets 6, the suction cup 12 on one bracket 6 stops adsorbing the plate, and the suction cup 12 on the other bracket 6 can just adsorb the plate. The auxiliary arm 11 is mainly provided to increase the contact area between the bracket 6 and the plate and improve the supporting effect on the plate.

[0029] Furthermore, the bracket 6 also includes a limiting plate 13 for limiting the inclined arm 8. The limiting plate 13 is fixed on the frame 3. When the inclined arm 8 contacts the limiting plate 13, the bracket arm 9 is horizontal.

[0030] In detail, by providing the limiting plate 13 , the initial positions of the oblique arm 8 and the supporting arm 9 can be positioned.

[0031] Furthermore, the push-pull rod 5 is a telescopic rod, and a spring is arranged inside the telescopic rod. In the natural state, the spring pushes the telescopic rod to extend to the maximum length.

[0032] In detail, due to the setting of the spring, the telescopic rod can be kept in an extended state in the natural state. When the main wheel 4 rotates, the main wheel 4 can push the inclined arm 8 to move through the telescopic rod in this state.

[0033] When the limit plate 13 contacts the inclined arm 8 and the supporting arm 9 returns to a horizontal state, the main wheel 4 continues to rotate, and the rotation point of the push-pull rod 5 on the main wheel 4 continues to approach the bracket 6. At this time, the main wheel 4 will push the telescopic rod to contract, that is, when the supporting arm 9 stops moving, the main wheel 4 continues to rotate and compress the telescopic rod. When the rotation point of the push-pull rod 5 on the main wheel 4 reaches the shortest distance from the bracket 6 and then gradually increases, the telescopic rod gradually extends until it reaches its maximum length. During this process, the supporting arm 9 always remains stationary. Using this process, the conveyor belt 1 transports the plate to the supporting arm 9, thereby providing the supporting arm 9 with a gap period for waiting for the plate to move to the specified position while the main wheel 4 rotates continuously and smoothly.

[0034] Furthermore, a worm gear is provided on the circumferential outer wall of the main wheel 4, a circular groove is opened in the middle of the circumferential outer wall of the main wheel 4, a clamping plate 14 is provided in the circular groove, the bottom of the clamping plate 14 is fixed on the frame 3, a motor 15 is provided on the frame 3, a worm 16 is provided at the output end of the motor 15, and the worm 16 is meshed with the worm gear on the main wheel 4.

[0035] In detail, the main wheel 4 can be installed on the frame 3 through the clamping plate 14, which is convenient for supporting the main wheel 4, and this method will not cause interference to the two push-pull rods 5 and the worm 16 on the two end surfaces of the main wheel 4. The motor 15 can smoothly drive the main wheel 4 to rotate smoothly and unidirectionally through the worm 16.

[0036] Furthermore, the bracket 6 also includes an inclined groove opened on the frame 3, a baffle 17 is slidably arranged in the inclined groove, and the baffle 17 is connected to the frame 3 through a leaf spring 18; The baffle 17 is used to block the plate on the conveyor belt 1. When the bracket 6 flips the plate, the plate overcomes the elastic force of the leaf spring 18 and pushes the baffle 17 to move.

[0037] In detail, due to the action of the leaf spring 18, the baffle 17 is located at one end of the highest point of the chute. At this time, the top of the baffle 17 is exposed outside the chute, and the plate is smoothly transported on the two conveyor belts 1. When the plate moves to the position of the baffle 17, the exposed baffle 17 blocks and positions the plate. When the bracket 6 flips the plate, the plate overcomes the elastic force of the leaf spring 18 and pushes the baffle 17 to move. At this time, the baffle 17 slides in the chute and is gradually hidden in the chute, thereby avoiding the baffle 17 from hindering the flipping of the plate. When the bracket 6 returns to its initial state, the leaf spring 18 pushes the baffle 17 to gradually appear again.

[0038] Further, the rotating shaft 7 is hollow; The bracket 6 also includes an electromagnetic control valve 19 fixed on the frame 3, one input end of the electromagnetic control valve 19 is connected to the outside air, the other input end of the electromagnetic control valve 19 is connected to the inside of the rotating shaft 7, and the output end of the electromagnetic control valve 19 is connected to the external suction pump. The interior of the support arm 9 is hollow, and the interior of the support arm 9 is connected to the suction cup 12 on the support arm 9 and the suction cup 12 on the auxiliary arm 11. The interior of the rotating shaft 7 is connected to the interior of the support arm 9 through the air pipe 20.

[0039] In detail, when the electromagnetic control valve 19 controls its input end to be connected with the rotating shaft 7, the external suction pump can extract the air inside the support arm 9 through the rotating shaft 7 and the air pipe 20, thereby adsorbing and fixing the plate through the suction cup 12. When the electromagnetic control valve 19 controls its two input ends to be connected, the outside air can directly enter the support arm 9, thereby restoring the suction cup 12 to a normal pressure state, and the suction cup 12 stops adsorbing and fixing the plate.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A turning mechanism for a sheet metal processing and forming machine tool, characterized in that: It includes two conveyor belts distributed front and back and a turning unit located in the middle of the two conveyor belts, the two conveyor belts are used to horizontally convey the plates, and the turning unit is used to turn over the plates on the two conveyor belts; The flip unit comprises a frame and a main wheel arranged on the frame, two push-pull rods and two brackets, the frame is used to lift the main wheel, the push-pull rod and the bracket, the main wheel axis is horizontal and perpendicular to the conveying direction of the conveyor belt, the two push-pull rods are arranged on the two end surfaces of the main wheel, and the push-pull rods are eccentrically connected to the main wheel, the two brackets are distributed front and back on the frame, and the two brackets are rotatably mounted on the frame, and the push-pull rods are rotatably connected to the brackets; When the main wheel rotates, the main wheel drives the two brackets to rotate synchronously in opposite directions through two push-pull rods, and the two brackets gradually rotate from a horizontal open state to a vertical closed state.

2. The turning mechanism for a sheet metal forming machine tool according to claim 1, characterized in that: The bracket is composed of a rotating shaft rotatably inserted on the frame, an inclined arm fixed on the rotating shaft, and a supporting arm slidably mounted on the inclined arm, and the inclined arm and the supporting arm are connected by a spring sheet; The support arm is used to carry the plate, and the inclined arm is used to connect with the push-pull rod. In the natural state, the support arm is horizontal, and the inclined arm is inclined toward the side away from the support arm.

3. The turning mechanism for a sheet metal processing and forming machine tool according to claim 2 is characterized in that: An auxiliary arm is rolled on the side wall of the supporting arm, and a plurality of suction cups are arranged on the supporting arm and the auxiliary arm, and the plurality of suction cups are connected to each other.

4. The turning mechanism for a sheet metal processing and forming machine tool according to claim 3 is characterized in that: The bracket also includes a limiting plate for limiting the position of the inclined arm, the limiting plate is fixed on the frame, and when the inclined arm contacts the limiting plate, the bracket arm is horizontal.

5. The turning mechanism for a sheet metal forming machine tool according to claim 4 is characterized in that: The push-pull rod is a telescopic rod, and a spring is arranged inside the telescopic rod. In the natural state, the spring pushes the telescopic rod to extend to the maximum length.

6. The turning mechanism for a sheet metal forming machine tool according to claim 5, characterized in that: A worm gear is arranged on the circumferential outer wall of the main wheel, a circular groove is opened in the middle of the circumferential outer wall of the main wheel, a clamping plate is arranged in the circular groove, the bottom of the clamping plate is fixed on the frame, a motor is arranged on the frame, a worm is arranged at the output end of the motor, and the worm is meshed with the worm gear on the main wheel.

7. The turning mechanism for a sheet metal forming machine tool according to claim 6, characterized in that: The bracket also includes an inclined slot provided on the frame, a baffle is slidably arranged in the inclined slot, and the baffle is connected to the frame via a leaf spring; The baffle is used to block the plate on the conveyor belt. When the bracket flips the plate, the plate overcomes the elastic force of the leaf spring and pushes the baffle to move.

8. The turning mechanism for a sheet metal forming machine tool according to claim 7, characterized in that: The rotating shaft is hollow; The bracket also includes an electromagnetic control valve fixed on the frame, one input end of the electromagnetic control valve is connected to the outside air, the other input end of the electromagnetic control valve is connected to the inside of the rotating shaft, the output end of the electromagnetic control valve is connected to the external suction pump, the interior of the support arm is hollow, the interior of the support arm is connected to the suction cup on the support arm and the suction cup on the auxiliary arm, and the interior of the rotating shaft is connected to the interior of the support arm through an air pipe.

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