High-speed workpiece carrying device for large press spacing of press line

Abstract

The invention discloses a high-speed workpiece carrying device for a large press interval of a press line. Comprising a mounting bracket, a lifting box body which is arranged on the mounting bracket and ascends and descends on the mounting bracket, and a feeding cross beam which is arranged at the lower end of the lifting box body and is in sliding connection with the lifting box body, the follow-up sliding plate is arranged at the lower end of the feeding cross beam and slides on the feeding cross beam, the adsorption device is arranged on the follow-up sliding plate and used for adsorbing workpieces, a follow-up sliding block is arranged between the lifting box body and the feeding cross beam, and the upper end of the follow-up sliding block is connected with the lifting box body in a sliding mode. The lower end of the follow-up sliding block is in sliding connection with the feeding cross beam, a gear is arranged in the middle of the follow-up sliding block, and racks meshed with the gear are arranged at the upper end of the feeding cross beam and the lower end of the lifting box body. And with the same transportation distance, the length of the cross beam is reduced, the weight is light, the processing and manufacturing cost is reduced, the width of the lifting box body is increased, the overall strength of the device is high, and the feeding precision is ensured.

Description

Technical Field

[0001] The invention relates to the field of stamping lines, in particular to a high-speed workpiece transport device for a stamping line with a large press spacing. Background Art

[0002] With the improvement of the automation level of stamping production lines, especially the performance improvement of stamping equipment such as mechanical presses, servo presses and multi-station presses, the stamping cycle has accelerated, forcing the handling devices between stamping production line equipment to have a faster production cycle to fully utilize the performance of the press. At present, there are two main types of handling devices for automatic stamping production lines: one is a mechanical single-arm feeding device. This single-arm device is a multi-joint mechanical device that can transport plate-shaped parts from the mold area of ​​the upper press to the mold area of ​​the lower press to achieve the corresponding function. This single-arm device is mostly redundant and has stronger adaptability to the mold. This device can achieve a higher production cycle. Due to its relatively complex structure and the large number of drive devices, the total installed power of the entire single arm is relatively large, resulting in a certain amount of energy consumption. There are certain inconveniences during the debugging and maintenance of the equipment.

[0003] There is an existing application number 201810837779, and the patent name is an invention patent for a mechanical double-arm feeding device. It discloses a technical solution. The device includes a mounting bracket, a lifting box, a beam, a follower device, a cross bar and an adsorption device. However, the beam 300 in the above device is long and heavy, which increases the processing and manufacturing cost, and the lifting box 200 is narrow, which has a poor supporting effect on the beam 300, reduces the rigidity of the entire device, and thus affects the feeding accuracy. Summary of the Invention

[0004] The purpose of the present invention is to solve the above problems and provide a high-speed workpiece handling device for a stamping line with a large press spacing. For the same transportation distance, the length of the beam is reduced, the weight is light, the processing and manufacturing costs are reduced, and the width of the lifting box is increased. The overall strength of the device is high, and the feeding accuracy is guaranteed.

[0005] The technical solution adopted by the present invention to solve the technical problem is: A high-speed workpiece handling device for a stamping line with a large press spacing comprises a mounting bracket, a lifting box body arranged on the mounting bracket and lifted and lowered on the mounting bracket, a feed beam arranged at the lower end of the lifting box body and slidably connected between the lifting box body, a follower slide plate arranged at the lower end of the feed beam and sliding on the feed beam, and an adsorption device for adsorbing the workpiece arranged on the follower slide plate, a follower slider is provided between the lifting box body and the feed beam, the upper end of the follower slider is slidably connected to the lifting box body, the lower end of the follower slider is slidably connected to the feed beam, a gear is provided in the middle position of the follower slider, and the upper end of the feed beam and the lower end of the lifting box body are both provided with racks meshing with the gear.

[0006] Furthermore, the lifting box is slidably connected to the mounting bracket, a lifting belt is provided in the mounting bracket and runs in the lifting box mounting bracket, the lifting belt is connected to the lifting box, and a lifting motor is provided at the upper end of the mounting bracket to drive the lifting belt to run.

[0007] Furthermore, a beam transmission belt running in the lifting box is provided in the lifting box, a first motor driving the beam transmission belt to move is provided on the lifting box, and the ends of the beam transmission belt are respectively connected to the corresponding ends of the feeding beam.

[0008] Furthermore, both ends of the feeding beam are provided with limit plates, and both ends of the beam transmission belt are respectively connected to the corresponding limit plates.

[0009] Furthermore, the follower slide is slidably connected to the feed beam, a follower slide transmission belt running in the feed beam is provided in the feed beam, and a second motor for driving the follower slide transmission belt is provided in the lifting box.

[0010] Furthermore, the adsorption device includes a cross bar and a plurality of suction cups arranged on the cross bar.

[0011] Furthermore, a plurality of sliding sleeves are evenly arranged on the crossbar, brackets are symmetrically arranged on the sliding sleeves, and the suction cups are installed at the ends of the brackets.

[0012] Furthermore, the follower slide is provided with a swing arm that swings on the follower slide, and the two ends of the cross bar are connected to the corresponding ends of the swing arm.

[0013] Furthermore, a rotating motor for driving the swing arm to swing is provided between the follower slide and the swing arm.

[0014] Furthermore, a crossbar rotating motor for driving the crossbar to rotate is provided at the lower end of the swing arm.

[0015] The beneficial effects of the present invention are: 1. The present invention provides a follower slider between the lifting box and the feed beam. The upper end of the follower slider is slidably connected to the lifting box, and the lower end of the follower slider is slidably connected to the feed beam. A gear is provided in the middle of the follower slider, and both the upper end of the feed beam and the lower end of the lifting box are provided with racks that mesh with the gear. When the feed beam moves, the gear on the follower slider rotates under the action of the rack on the feed beam, and the gear meshes with the rack on the lifting box, causing the follower slider to move on the lifting box. The follower slider can move a short distance in the same direction as the feed beam, providing dynamic guidance for the feed beam. The fulcrum of the feed beam is closer to the load side, which can effectively reduce the length of the feed beam's lever arm. For the same transfer distance, the feed beam is shorter and lighter, reducing processing and manufacturing costs, and increasing the width of the lifting box. The overall strength of the device is high, ensuring feeding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1 It is a right side view of the present invention; Figure 2 for Figure 1 A partial enlarged view of the middle part; Figure 3 It is a schematic diagram of the structure of the present invention; Figure 4 for Figure 3 A partial enlarged view of point B in the middle; Figure 5 This is a cross-sectional view of the lifting box and the feeding beam of the present invention; Figure 6 It is a schematic diagram of the working state of the present invention.

[0018] In the figure: mounting bracket 1, lifting box 2, feeding beam 3, follower slide 4, follower slider 5, gear 6, rack 7, lifting belt 8, lifting motor 9, beam transmission belt 10, first motor 11, limit plate 12, follower slide transmission belt 13, second motor 14, cross bar 15, suction cup 16, sliding sleeve 17, bracket 18, swing arm 19, rotating motor 20, cross bar rotating motor 21. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0020] like Figures 1 to 4 As shown, a high-speed workpiece handling device for a stamping line with a large press spacing includes a mounting bracket 1, a lifting box 2 arranged on the mounting bracket 1 and lifted and lowered on the mounting bracket 1, a feed beam 3 arranged at the lower end of the lifting box 2 and slidably connected with the lifting box 2, a follower slide 4 arranged at the lower end of the feed beam 3 and sliding on the feed beam 3, and an adsorption device for adsorbing the workpiece arranged on the follower slide 4, a follower slider 5 is provided between the lifting box 2 and the feed beam 3, the upper end of the follower slider 5 is slidably connected to the lifting box 2 through a guide rail slider, and the lower end of the follower slider 5 is slidably connected to the feed beam 3 through a guide rail slider, a gear 6 is provided in the middle position of the follower slider 5, the rotating shaft of the gear 6 is in the horizontal direction, and the upper end of the feed beam 3 and the lower end of the lifting box 2 are provided with a rack 7 meshing with the gear 6.

[0021] like Figure 6 As shown, the present invention is an extremely important part of the automated stamping line, which is located in the front and rear positions of the metal forming press. The plate-shaped parts are disassembled by the destacking device, passed through the cleaning machine / oiling machine, and the posture adjustment of the plate-shaped parts is completed by the centering device. The present invention is used to transport the plate-shaped parts that have completed centering from the centering platform to the mold area of ​​the forming press. The forming press completes the stamping process. The subsequent plate-shaped part transporting device transports the formed plate-shaped parts from the mold area of ​​the upper-order press to the mold area of ​​the lower-order press to complete the entire stamping process. The last-order transporting device transports the plate-shaped parts from the mold area of ​​the last-order press to the belt conveyor or other devices to complete the plate-shaped part transporting work of the entire automated stamping line.

[0022] When the aligned plate-shaped parts are transported from the centering platform to the die area of ​​the forming press, the lifting box 2 descends, the feed beam 3 moves to the extreme left end, the adsorption device adsorbs the workpiece, and then the lifting box 2 rises, and at the same time the feed beam 3 moves to the right, the adsorption device grabs the workpiece, and transports the workpiece to the die area of ​​the forming press, thereby completing the workpiece transportation.

[0023] When the feed beam 3 moves, the gear 6 on the follower slide 5 rotates under the action of the rack on the feed beam 3, and the gear 6 engages with the rack on the lifting box 2, causing the follower slide 5 to move on the lifting box 2. Since two follower slides 5 are provided in parallel, and the follower slides 5 can move a short distance in the same direction as the feed beam 3 moves, providing dynamic guidance for the feed beam. The fulcrum of the feed beam 3 is closer to the load side, which can effectively reduce the length of the force arm of the feed beam 3. For the same transfer distance, the feed beam 3 is shorter and lighter, which reduces processing and manufacturing costs, and increases the width of the lifting box. The overall strength of the device is high, ensuring feeding accuracy.

[0024] The present invention is used for the transportation of plate-shaped parts between presses in a high-speed automated stamping production line. It can transport plate-shaped parts from the upper station to the lower station more quickly. This process is not subject to the shape, material, and double-die spacing requirements of the formed parts and the corresponding mold opening angle requirements. Compared with the existing technology, the present invention simplifies the structure and control of the transport device. The overall structure is simple and compact. The lifting drive and the feeding drive have a certain degree of interchangeability and are easy to maintain. The space occupied by the transport device in the press mold area is compressed, the transport speed and efficiency of plate-shaped parts are improved, and the performance utilization efficiency of the press is improved. The present invention can more effectively match the new servo press production line, increase the popularity of high-speed automated stamping production lines, reduce production costs for automobile manufacturers, improve production efficiency and quality, and generate better economic and social benefits.

[0025] like Figure 3 As shown, the lifting box 2 and the mounting bracket 1 are slidably connected through a guide rail slider, and the guide rail is in the vertical direction, that is, the guiding direction of the lifting box 2 is in the vertical direction. A mounting plate is provided on the outside of the mounting bracket 1, and the main function of the mounting plate 103 is the mounting surface of the entire mounting bracket. A lifting belt 8 is provided in the mounting bracket 1 and runs in the lifting box 2 mounting bracket 1. The lifting belt 8 is connected to the lifting box 2, and a lifting motor 9 is provided at the upper end of the mounting bracket 1 to drive the lifting belt 8 to operate. Of course, those skilled in the art can think of that the lifting belt 8 can be driven by a screw or a gear; the function of the lifting belt 8 is to transmit the power of the lifting motor 9 to the lifting box 2, so that the lifting box 2 moves according to the set motion law, which is a dual motor or a single motor.

[0026] like Figure 3 and Figure 5As shown, the lifting box 2 is provided with a beam transmission belt 10 running in the lifting box 2, and the lifting box 2 is provided with a first motor 11 that drives the beam transmission belt 10 to move. The output end of the first motor 11 is provided with a synchronous pulley that cooperates with the beam transmission belt 10 and a tensioning pulley for tensioning the beam transmission belt 10. The tensioning pulleys are symmetrically arranged. In this embodiment, two first motors 11 are provided in parallel, and the ends of the beam transmission belt 10 are respectively connected to the corresponding ends of the feed beam 3.

[0027] The function of the lifting box 2 is to support the relevant drive, pulleys, etc. installed on the lifting box 2. The function of the first motor 11 is to drive the telescopic movement of the feeding beam 3.

[0028] like Figure 3 As shown, both ends of the feed beam 3 are equipped with limit plates 12. The ends of the beam drive belt 10 are connected to the corresponding limit plates 12. The limit plates 12 have three functions: first, to provide a hard limit when the feed beam 3 moves to the limit position; second, to fix the beam drive belt 10 and provide a tension adjustment device for the belt; and third, to fix the guide pulley of the follower slide drive belt. The beam drive belt 10 is used to drive the feed beam 3.

[0029] like Figure 3 and Figure 5 As shown, the follower slide 4 is slidably connected to the feed beam 3 via a guide rail slider. A follower slide drive belt 13 is installed within the feed beam 3, running within the feed beam 3. Pulleys are provided at both ends of the feed beam 3 to support the follower slide drive belt 13. A second motor 14 is installed within the lifting box 2 to drive the follower slide drive belt 13. A tensioner is symmetrically located within the lifting box 2 to tension the follower slide drive belt 13. The output shaft of the second motor 14 is equipped with a pulley that mates with the tensioned follower slide drive belt 13. The second motor 14 provides additional drive to the follower slide 4. The follower slide 4 is connected to the follower slide drive belt 13 and, driven by the follower slide drive belt 13, moves in tandem with the feed beam 3. The second motor 14 can operate or remain stationary. When the second motor 14 is operating, the follower slide 4 moves at a faster speed.

[0030] like Figure 3 As shown, the adsorption device includes a cross bar 15 and a plurality of suction cups 16 arranged on the cross bar 15, and the suction cups 16 are used to adsorb plate-shaped parts.

[0031] like Figure 3As shown, the crossbar 15 is evenly distributed with a plurality of sliding sleeves 17, and the sliding sleeves 17 are symmetrically provided with brackets 18. The suction cups 16 are mounted on the ends of the brackets 18. The brackets 18 are used to support the suction cups 16 to maintain a certain posture to facilitate the suction of plate-shaped parts. The sliding sleeves 17 are used to adjust the suction cups 16 along a fixed direction when the center distance between the suction cups 16 on both sides is adjusted.

[0032] like Figure 3 As shown, the follower slide 4 is provided with a swing arm 19 that swings on the follower slide 4, and the two ends of the cross bar 15 are connected to the corresponding ends of the swing arm 19. The swing arm 19 is installed on the follower slide 4 and is mainly used to compensate for the disadvantage that the follower slide 4 is limited by the speed of the guide rail within a certain period of time and has insufficient movement distance.

[0033] like Figure 3 As shown, a rotating motor 20 for driving the swing arm 19 to swing is provided between the follower slide 4 and the swing arm 19. The follower slide 4 is rotationally connected to the swing arm 19. The rotating motor 20 is fixed on the swing arm 19. The rotating flange of the rotating motor 20 is fixed on the follower slide 4 to realize the rotation of the swing arm 19 and achieve distance compensation during feeding.

[0034] like Figure 3 As shown, the lower end of the swing arm 19 is equipped with a crossbar rotation motor 21 that drives the crossbar 15 to rotate. The lower end of the swing arm 19 is equipped with a crossbar fixing flange, which connects the crossbar rotation motor to the crossbar, allowing the crossbar to rotate under the drive of the crossbar rotation motor. The crossbar rotation motor 21 allows the crossbar to have a certain degree of freedom during its movement; the crossbar is perpendicular to the movement direction of the feed beam and the centerline direction of the press in the stamping line. Therefore, during the movement of the handling device, the crossbar only grabs the plate-shaped parts at the center of the mold area of ​​the upstream press and then releases the plate-shaped parts at the center of the mold area of ​​the downstream press, completing the handling work of a single handling device.

[0035] When the upper and lower molds have a certain angle, the device of the present invention can timely adjust the posture of the cross bar when entering the mold area according to the mold opening angle, so as to make full use of the minimum slider opening height of the press, compress the time for the handling device to cooperate with the press, and improve the production rhythm of the stamping equipment.

[0036] In a particularly preferred embodiment, two or more groups of the plate-shaped parts handling devices constitute a plate-shaped parts handling system for an automated stamping production line.

[0037] A method for grabbing a plate-shaped part in the die area of ​​a preceding press or in a preceding station and transporting it to the die area of ​​a following press or in a following station using a handling device between presses of a stamping line or a multi-station press comprises the following steps: 1) The crossbar moves from its waiting position to the top of the plate-shaped parts in the die area of ​​the upper press; 2) The lifting box is lowered and the swing arm swings to reduce the height of the crossbar; 3) The suction cups on the crossbar absorb the plate-shaped parts; 4) The lifting box is lifted and the swing arm is swung to make the crossbar leave the lower die area of ​​the upper press; 5) The feeding beam moves along its axial direction, and the swing arm swings, so that the crossbar and the plate-shaped parts move into the mold area of ​​the lower die press; 6) The lifting box descends, the swing arm swings, the crossbar height is lowered, and the adsorption device releases the plate-shaped parts at the same time; 7) The lifting box is lifted and the swing arm is swung so that the crossbar leaves the lower die area of ​​the next sequence press; 8) The feeding beam moves along its axial direction, the swing arm swings, and enters the waiting position of the upper sequence press.

[0038] The present invention is used for the transportation of plate-shaped parts between presses in a high-speed automated stamping production line. It can transport plate-shaped parts from the upper station to the lower station more quickly. This process is not subject to the shape, material, and double-die spacing requirements of the formed parts and the corresponding mold opening angle requirements. Compared with the existing technology, the present invention simplifies the structure and control of the transport device. The overall structure is simple and compact. The lifting drive and the feeding drive have a certain degree of interchangeability and are easy to maintain. The space occupied by the transport device in the press mold area is compressed, the transport speed and efficiency of plate-shaped parts are improved, and the performance utilization efficiency of the press is improved. The present invention can more effectively match the new servo press production line, increase the popularity of high-speed automated stamping production lines, reduce production costs for automobile manufacturers, improve production efficiency and quality, and generate better economic and social benefits.

[0039] In the description of the present invention, it should be noted that the terms "left", "right", "up", "down", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0040] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

Claims

1. A high-speed workpiece handling device for a large press spacing of a stamping line, comprising a mounting bracket (1), a lifting box (2) arranged on the mounting bracket (1) and raised and lowered on the mounting bracket (1), a feed beam (3) arranged at the lower end of the lifting box (2) and slidably connected to the lifting box (2), a follower slide (4) arranged at the lower end of the feed beam (3) and sliding on the feed beam (3), and an adsorption device arranged on the follower slide (4) for adsorbing workpieces, characterized in that: A follower slider (5) is provided between the lifting box (2) and the feeding beam (3), the upper end of the follower slider (5) is slidably connected to the lifting box (2), and the lower end of the follower slider (5) is slidably connected to the feeding beam (3), a gear (6) is provided at the middle position of the follower slider (5), and a rack (7) meshing with the gear (6) is provided at the upper end of the feeding beam (3) and the lower end of the lifting box (2).

2. A high-speed workpiece handling device for a press line with large press spacing according to claim 1, characterized in that: The lifting box (2) is slidably connected to the mounting bracket (1); a lifting belt (8) running in the lifting box (2) mounting bracket (1) is provided in the mounting bracket (1); the lifting belt (8) is connected to the lifting box (2); and a lifting motor (9) for driving the lifting belt (8) to run is provided at the upper end of the mounting bracket (1).

3. A high-speed workpiece handling device for a press line with large press spacing as claimed in claim 1, characterized in that: A beam transmission belt (10) is provided in the lifting box (2) and operates in the lifting box (2). A first motor (11) is provided on the lifting box (2) for driving the beam transmission belt (10) to move. Ends of the beam transmission belt (10) are respectively connected to corresponding ends of the feed beam (3).

4. A high-speed workpiece handling device for a press line with large press spacing as claimed in claim 3, characterized in that: Both ends of the feeding beam (3) are provided with a limit plate (12), and both ends of the beam transmission belt (10) are respectively connected to the corresponding limit plates (12).

5. A high-speed workpiece handling device for a press line with large press spacing as claimed in claim 1, characterized in that: The follower slide (4) is slidably connected to the feed beam (3); a follower slide transmission belt (13) running in the feed beam (3) is provided in the feed beam (3); and a second motor (14) for driving the follower slide transmission belt (13) is provided in the lifting box (2).

6. A high-speed workpiece handling device for a press line with large press spacing as claimed in claim 1, characterized in that: The adsorption device comprises a crossbar (15) and a plurality of suction cups (16) arranged on the crossbar (15).

7. A high-speed workpiece handling device for a press line with large press spacing as claimed in claim 6, characterized in that: A plurality of sliding sleeves (17) are evenly arranged on the crossbar (15), a bracket (18) is symmetrically arranged on the sliding sleeve (17), and the suction cup (16) is mounted on the end of the bracket (18).

8. A high-speed workpiece handling device for a press line with large press spacing as claimed in claim 7, characterized in that: The follower slide (4) is provided with a swing arm (19) that swings on the follower slide (4), and both ends of the cross bar (15) are connected to the corresponding ends of the swing arm (19).

9. A high-speed workpiece handling device for a press line with large press spacing according to claim 8, characterized in that: A rotating motor (20) for driving the swing arm (19) to swing is provided between the follower slide (4) and the swing arm (19).

10. A high-speed workpiece handling device for a press line with large press spacing according to claim 8, characterized in that: A crossbar rotating motor (21) for driving the crossbar (15) to rotate is provided at the lower end of the swing arm (19).

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