Flexible transfer platform for stamping line clogging

Abstract

The present invention relates to a flexible transfer table for stamping line jamming, which includes a base, a support assembly, a working position, and a retracted position. One end of the base is connected to a fixed rotation mechanism, and the other end is movably connected to a moving rotation mechanism. The support assembly consists of at least two parts. The proximal end of each is connected to the top of the fixed rotation mechanism and the moving rotation mechanism, and the distal end is located at the working position or the retracted position according to the working state. When located at the working position, two support assemblies are arranged in parallel to place the stamping parts to be stacked. When located at the retracted position, the moving rotation mechanism moves one of the support assemblies along the base in a direction approaching the fixed rotation mechanism or away from the fixed rotation mechanism so that the distance between the support assemblies when located at the working position changes. The working positions are arranged in parallel such that the axis is parallel to the base, receiving the distal ends of the support assemblies in the working state of the transfer table. The retracted positions are located at both ends of the base respectively, receiving the distal ends of the support assemblies in the retracted state of the transfer table.

Description

Technical Field

[0001] (Cross - reference to related applications) This invention claims priority based on a Chinese patent application with an application number of 202211434218.9 and an invention title of "Flexible Transfer Table for Blocking of Stamping Line", filed with the China National Intellectual Property Administration on November 16, 2022, the entire content of which is incorporated herein by reference.

[0002] This invention relates to the technical field of manufacturing automotive parts, and more specifically, to a flexible transfer table for blocking of a stamping line.

Background Art

[0003] The description of this part is only for providing information on the background art related to this invention, and does not necessarily constitute prior art.

[0004] A large number of stamping parts are used in automotive parts. In order to improve production efficiency, there are stamping parts manufactured by stacking multiple workpieces and then stamping them at once. For example, in the case of the lower outer panel of the trunk, the lower outer panel of the tailgate, etc., it is necessary to carry stamping parts with 3 - 5 stacked workpieces into the material frame at once by a device and perform the stamping operation.

[0005] Depending on different process requirements, the number of workpieces to be stamped to be laminated on the material frame varies. In the lamination process, the workpieces to be stamped are taken out from the blanking device but have not yet been carried into the material frame (processing box) of the stamping device, so a temporary transfer space is required. And since the sizes of the workpieces to be stamped vary batch by batch according to the manufacturing requirements, the transfer space needs to have a certain degree of "flexibility" to accommodate changes in the sizes of the workpieces to be stamped. In addition, the device providing the transfer space should minimize the footprint as much as possible and not affect the mutual cooperation of the blanking device, stamping device, and stuffing device during operation. However, there is no device or apparatus in the prior art that can simultaneously meet the above requirements.

Summary of the Invention

[0006] In order to solve the technical problems existing in the above background art, the present invention provides a flexible transfer table for stuffing on a stamping line. By placing the support rods for supporting the laminated stamping parts at different positions, it can meet the requirements of laminating stamping parts of various sizes, reduce the usage frequency of the stuffing robot, and prevent the stuffing robot from occupying the operating space when lamination is not required, effectively reducing production costs and the purchase cost of the device.

[0007] To achieve the above object, the present invention adopts the following technical solutions.

[0008] One aspect of the present invention relates to a base, a support assembly, a working position, and a retracted position, where one end of the base is connected to a fixed rotation mechanism, and the other end is movably connected to a moving rotation mechanism. The support assemblies consist of at least two, with the proximal end of each connected to the top of the fixed rotation mechanism and the moving rotation mechanism, and the distal end located at the working position or the retracted position according to the working state. When in the working position, two support assemblies are arranged in parallel to place the stamping parts to be laminated. When in the retracted position, by the moving rotation mechanism, one of the support assemblies is moved along the base in a direction approaching the fixed rotation mechanism or away from the fixed rotation mechanism so that the distance between the support assemblies when in the working position changes. A plurality of working positions are arranged in parallel with their axes parallel to the base to receive the distal ends of the support assemblies in the working state of the transfer table. The retracted positions are located at both ends of the base respectively to receive the distal ends of the support assemblies in the retracted state of the transfer table, providing a flexible transfer table for jamming the stamping line.

[0009] The fixed rotation mechanism includes a fixed rotation holder fixedly connected to the base. The fixed rotation holder is movably connected to the fixed end of the cylinder. The movable end of the cylinder is movably connected to the proximal end of the first cylinder push rod. The distal end of the first cylinder push rod is fixedly connected to the bottom of the rotating shaft. The uppermost end of the rotating shaft is connected to the proximal end of the support assembly.

[0010] Both the cylinder and the first cylinder push rod are arranged horizontally. The operating axis of the cylinder and the axis of the first cylinder push rod form a predetermined angle. By the telescopic movement of the cylinder, the proximal end of the first cylinder push rod is rotated around its distal end at a predetermined angle, and the support assembly is rotated by the rotating shaft connected to the proximal end of the first cylinder push rod and arranged vertically.

[0011] The moving and rotating mechanism includes a moving and rotating holder movably connected to the base. The moving and rotating holder is movably connected to the fixed end of the cylinder. The movable end of the cylinder is movably connected to the proximal end of the second cylinder push rod. The distal end of the second cylinder push rod is fixedly connected to the bottom of the rotating shaft. The uppermost end of the rotating shaft is connected to the proximal end of the support assembly.

[0012] Both the cylinder and the second cylinder push rod are horizontally arranged. The operating axis of the cylinder and the axis of the second cylinder push rod form a predetermined angle. By the telescopic movement of the cylinder, the proximal end of the second cylinder push rod is rotated around its distal end at a predetermined angle, and the support assembly is rotated by the rotating shaft connected to the proximal end of the second cylinder push rod and arranged vertically.

[0013] The moving and rotating holder is movably connected to a linear guide rail provided at one end of the base and can move along the linear guide rail so as to approach or move away from the fixed rotating holder. The upper surface of the linear guide rail is covered by a telescopic protective cover.

[0014] The moving and rotating holder is provided with a first position limiting block on the end face facing the fixed rotating holder, and a second position limiting block is provided on the end face away from the fixed rotating holder. The position where the linear guide rail is provided has trigger switches corresponding to the first position limiting block and the second position limiting block.

[0015] The support assembly includes support rods. The proximal ends of the support rods are connected to the uppermost parts of the moving and rotating holder and the fixed rotating holder, rotate by the corresponding moving and rotating holder and fixed rotating holder respectively, are arranged in parallel and continuously, and a non-slip plate is provided on the upper surface of the support rods.

[0016] The retraction position includes a retraction column. The top of the retraction column is connected to a first fixed plate arranged horizontally. At one end of the first fixed plate, a first switch holder for connecting a detection switch is provided.

[0017] The working position includes a working column. The top of the working column is connected to a second fixed plate arranged horizontally. At one end of the second fixed plate, a second switch holder for connecting a detection switch is provided.

[0018] Compared with the prior art, the above one or more technical solutions have the following beneficial effects.

[0019] 1. By setting the support rods for supporting the stacked stamping parts at different positions, the requirements for stacking stamping parts of various sizes can be met, the usage frequency of the stuffing robot can be reduced, and according to the requirements of the stacking process, it can be switched to the working state or the retraction state. When stacking is not required, it can avoid occupying the operating space of the stuffing robot, and effectively reduce the production cost and the purchase cost of the device.

[0020] 2. The structure of the transfer table is compact, and it can meet the requirements of the stacking process only in a relatively small space among the stuffing device, the stamping device and the transport device of the stamping parts.

[0021] The internal structure of the transfer table controls the rotation operation by a cylinder, the control logic is simple, and it can be incorporated into the control logic as part of the stamping production line, which is preferable in terms of implementation.

[0022] The attached drawings constituting a part of the present invention are for providing a further understanding of the present invention. The schematic embodiments and their descriptions related to the present invention do not constitute an improper limitation to the present invention, but are for interpreting the present invention.

Brief Description of the Drawings

[0023]

Figure 1

Figure 2

Figure 3(a)

Figure 3(b)

Figure 4

Figure 5

Figure 6

Figure 7

Mode for Carrying Out the Invention

[0024] Hereinafter, the present invention will be further described with reference to the accompanying drawings and examples.

[0025] It should be noted that all the following detailed descriptions are exemplary for further explaining the present invention. Unless otherwise specified, all technical terms and scientific terms used in this specification have the same meaning as those generally understood by those with ordinary knowledge in the technical field to which the present invention belongs.

[0026] Also, the terms used in this specification are for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used in this specification, unless otherwise specified by the context, the singular form is intended to include the plural form, and in this specification, when the terms "comprising" and / or "containing" are used, it means that features, steps, operations, devices, assemblies, and / or combinations thereof exist.

[0027] As described in the background art, depending on different process requirements, the number of workpieces to be stamped to be laminated on the material frame is different. In the lamination process, the workpieces to be stamped are taken out from the blanking device but have not yet been carried into the stamping device, so a temporary transfer space is required. And since the size of the workpieces to be stamped varies batch by batch according to the manufacturing requirements, the transfer space needs to have a certain degree of flexibility to accommodate the change in the size of the workpieces to be stamped. In addition, the device providing the transfer space needs to minimize the footprint as much as possible and not affect the mutual cooperation of the operating blanking device, stamping device, and stuffing device. However, in the prior art, there is no device or apparatus that can satisfy the above requirements simultaneously.

[0028] The stuffing device carries the workpieces to be stamped from the blanking device into the processing box. The processing box is a device for fixing a plurality of laminated workpieces, for example, a material frame. After the lamination process is completed, the workpieces are carried into the stamping device together with the processing box to perform stamping processing.

[0029] Therefore, the following embodiments provide a flexible transfer platform for stuffing the stamping line. The flexible transfer platform for stuffing the stamping line is located between the stations of the blanking device and the stamping device on the stamping production line. In the working state, by straddling the stuffing device and placing the support assemblies for supporting the stacked stamping parts at different positions, the requirements for stacking stamping parts of various sizes can be met, the usage frequency of the stuffing robot can be reduced, and it can be switched between the working state and the retracted state according to the requirements of the stacking process. When there is no need to stack, it can avoid occupying the operating space of the stuffing robot, effectively reducing the production cost and the purchase cost of the device.

[0030] Embodiment 1 As shown in FIGS. 1 to 4, the flexible transfer platform for stuffing the stamping line includes a base, a support assembly, a working position, and a retracted position. One end of the base is connected to the fixed rotation mechanism, and the other end is movably connected to the moving rotation mechanism. The support assembly consists of at least two. The proximal ends of each are connected to the uppermost parts of the fixed rotation mechanism and the moving rotation mechanism respectively. The distal ends are located at the working position or the retracted position according to the working state. When located at the working position, two support assemblies are arranged in parallel to place the stamping parts to be stacked. When located at the retracted position, by the moving rotation mechanism, one support assembly is moved along the base in a direction approaching the fixed rotation mechanism or away from the fixed rotation mechanism so that the distance between the support assemblies when located at the working position changes. A plurality of working positions are arranged in parallel with their axes parallel to the base, and are used to receive the distal ends of the support assembly in the working state of the transfer platform. The retracted positions are located at both ends of the base respectively, and are used to receive the distal ends of the support assembly in the retracted state of the transfer platform.

[0031] Specifically, The bottom surface of the base 2 is fixed to the ground by the anchor plate 1. The base 2 has an integral structure. By adjusting the lifting height of the base 2 by each anchor plate 1, the base 2 is made horizontal.

[0032] The fixed rotation mechanism includes a fixed rotation holder 4 fixedly connected to the base 2. The fixed rotation holder 4 is movably connected to the fixed end of the cylinder 5. The movable end of the cylinder 5 is movably connected to the proximal end of the first cylinder push rod 6. The distal end of the first cylinder push rod 6 is fixedly connected to the bottom of the rotating shaft 7. The uppermost end of the rotating shaft 7 is connected to the proximal end of the support assembly.

[0033] Both the cylinder 5 and the first cylinder push rod 6 are horizontally arranged. The operating axis of the cylinder 5 and the axis of the first cylinder push rod 6 form a predetermined angle. By the telescopic movement of the cylinder 5, the proximal end of the first cylinder push rod 6 is rotated around its distal end at a predetermined angle, and the support assembly is rotated by the rotating shaft 7 connected to the proximal end of the first cylinder push rod 6 and arranged vertically.

[0034] In this embodiment, the fixed rotation holder 4 is a gantry fixed to the base 2. The upper beam of the gantry is movably connected to the support assembly by a connecting component. The rotating shaft 7 passes through the upper beam of the gantry and is connected to the support assembly by a bearing 9. When the cylinder 5 pushes the first cylinder push rod 6 to rotate the support assembly by 90°, it switches from the retracted position to the working position, or switches from the working position to the retracted position.

[0035] In this embodiment, the first cylinder push rod 6 and the rotating shaft 7 may be connected by an extension sleeve 8, or may be connected by any other connecting means.

[0036] The moving and rotating mechanism includes a moving and rotating holder 20 movably connected to the base 2. The moving and rotating holder 20 is movably connected to the fixed end of the cylinder 5. The movable end of the cylinder 5 is movably connected to the proximal end of the second cylinder push rod 18. The distal end of the second cylinder push rod 18 is fixedly connected to the bottom of the rotating shaft 7. The uppermost end of the rotating shaft 7 is connected to the proximal end of the support assembly.

[0037] Both the cylinder 5 and the second cylinder push rod 18 are horizontally arranged. The operating axis of the cylinder 5 and the axis of the second cylinder push rod 18 form a predetermined angle. By the telescopic movement of the cylinder 5, the proximal end of the second cylinder push rod 18 is rotated around its distal end at a predetermined angle, and the support assembly is rotated by the rotating shaft 7 connected to the proximal end of the second cylinder push rod 18 and vertically arranged.

[0038] In this embodiment, the moving and rotating holder 20 is a gantry with its bottom movably connected to the base 2. The upper beam of the gantry is movably connected to the support assembly by a connecting component. The rotating shaft 7 passes through the upper beam of the gantry and is connected to the support assembly by a bearing 9. When the cylinder 5 pushes the second cylinder push rod 18 to rotate the support assembly by 90°, it switches from the retracted position to the working position, or switches from the working position to the retracted position.

[0039] In this embodiment, the second cylinder push rod 18 and the rotating shaft 7 may be connected by an extension sleeve 8, or may be connected by any other connecting means.

[0040] The movable rotary holder 20 is movably connected to a linear guide rail 19 provided at one end of the base 2, and is movable along the linear guide rail 19 so as to approach or move away from the fixed rotary holder 4. The upper surface of the linear guide rail 19 is covered with a telescopic protective cover 16 to prevent dust, water vapor, and impurities from eroding the linear guide rail 1.

[0041] The power source for moving the movable rotary holder 20 along the linear guide rail 19 is not limited, and the movable rotary holder 20 may be moved by a motor or a driving element having the same function. In this embodiment, considering the load surface, a linear cylinder is provided on the end surface of the base 2, and the linear cylinder is used to move the movable rotary holder 20 along the linear guide rail 19.

[0042] The movable rotary holder 20 is provided with a first position limiting block 17 on the end surface facing the fixed rotary holder 4, and a second position limiting block 21 is provided on the end surface away from the fixed rotary holder 4. Position limitation when the movable rotary holder 20 moves along the linear guide rail 19 is realized by a trigger switch (for example, a photoelectric switch) connected to the provided position of the linear guide rail 19.

[0043] The support assembly includes a support rod 13. The proximal end of the support rod 13 is connected to the uppermost parts of the movable rotary holder 20 and the fixed rotary holder 4, and is rotated 90° by the corresponding movable rotary holder 20 and fixed rotary holder 4 respectively, so as to be arranged in parallel and continuously. A non-slip plate 14 is provided on the upper surface of the support rod 13.

[0044] As shown in FIGS. 3(a) to 3(b), the support rod 13 and the flange plate 35 are connected by a spring 12, a hinge shaft 10, and a hinge seat 11. The flange plate 35 is connected to the rotating shaft 7 by a flat key 37. The pressing lid 36 presses against the flange plate 35 and the rotating shaft 7. In such a structure, a flexible rotating rod is provided, which helps the rotating rod to pass through the high point of the nylon plate 28.

[0045] In this embodiment, the anti-slip plate may be an anti-slip plate made of rubber (not limited to rubber), and is for providing sufficient frictional force to prevent slipping when supporting the stamping parts to be laminated.

[0046] In this embodiment, at least two anti-slip plates are provided on each support rod 13. There is a certain interval between the two anti-slip plates, and a wedge-shaped block is connected to two adjacent end faces, so that a groove is formed between the anti-slip plates to stably and reliably place the stamping parts to be laminated.

[0047] In this embodiment, the wedge-shaped block may be a wedge-shaped block made of polyurethane, or any other material that meets the requirements.

[0048] The retracted position includes a retracted column 22. The uppermost part of the retracted column 22 is connected to a first fixed plate arranged horizontally. At one end of the first fixed plate, a first switch holder 27 for connecting a detection switch is provided.

[0049] In this embodiment, the retracted position includes the retracted column 22. The side of the retracted column 22 is connected to the first adjustment sheet 23. The uppermost part of the first adjustment sheet 23 is connected to the horizontally arranged first nylon mounting plate 24. The first nylon mounting plate 24 is located at the uppermost end of the retracted column 22. Both the first nylon plate 26 (the first fixing plate) and the guide roller 25 are connected to the upper surface of the first nylon mounting plate 24. At one end of the first nylon mounting plate 24, a first switch holder 27 for connecting a detection switch is provided. The first adjustment sheet 23 adjusts the height of the first nylon plate 24 so as to match the height of the support rod 13, thereby avoiding the support rod 13 from being deformed under force over a long period of time.

[0050] In this embodiment, two retracted positions are provided at both ends of the base 2 respectively. As shown in FIG. 5, the first retracted position 1051 is located at one end of the base 2 near the moving and rotating mechanism, and there is a certain distance between them. The second retracted position 1052 is located at one end of the base 2 near the fixed rotating mechanism, and there is a certain distance between them.

[0051] When both of the two retracted positions are in the retracted state where the transfer table does not operate, the distal end of the support rod 13 is received, and the two support rods 13 are in a continuous state, that is, they form 180°.

[0052] The working position includes the working column 32. The uppermost part of the working column 32 is connected to the horizontally arranged second fixing plate. At one end of the second fixing plate, a second switch holder 30 for connecting a detection switch is provided.

[0053] In this embodiment, the working position includes a working column 32. The side of the working column 32 is connected to a second adjustment sheet 31, and the second adjustment sheet 31 is connected to a second nylon mounting plate 29 horizontally arranged at the topmost part of the second adjustment sheet 31. The second nylon mounting plate 29 is located at the uppermost end of the working column 32. A second nylon plate 28 (second fixing plate) is connected to the upper surface of the second nylon mounting plate 29. At one end of the second nylon mounting plate 29, a second switch holder 30 for connecting a detection switch is provided. The second adjustment sheet 31 serves to adjust the height of the nylon plate 29 so as to be adapted to the height of the support rod 13. Thereby, the time-dependent deformation of the support rod 13 is avoided.

[0054] In this embodiment, the three working positions are provided in a straight line. As shown in FIG. 5, the first working position 1061 and the second working position 1062 respectively correspond to a moving rotation mechanism and are for receiving the distal end of the support rod 13. The third working position 1062 corresponds to the position of a fixed rotation mechanism and is for receiving the distal end of another support rod 13. When the intervals between the moving rotation mechanism and the fixed rotation mechanism are different for the first working position 1061 and the second working position 1062, by changing the interval between the two support rods 13, the requirement of stacking stamping parts of different sizes is satisfied.

[0055] In this embodiment, the base 2 is further provided with a residual pressure release valve 3, an electromagnetic valve 33, and an air pipe type drag chain 34 for controlling the operation period of the transfer table. The specific positions, structures, and functions of these members are not limited. For example, the residual pressure release valve 3 is respectively located on the fixed rotation holder 4 and the moving rotation holder 20 and is connected to the cylinder 5 via a pipe to release the residual pressure in the cylinder 5 as required. The electromagnetic valve 33 is respectively located on the fixed rotation holder 4 and the moving rotation holder 20 as shown in FIG. 2.

[0056] In the above-described structure, When it is necessary to stack stamping parts, the two cylinders 5 drive the corresponding cylinder push rods (6, 18) respectively, and the support rod 13 is rotated 90° from the retracted position to the working position by the rotating shaft 7 and moved. After rotation, the two support rods 13 are arranged in parallel so as to place the stamping parts. That is, it moves from the state of FIG. 3 to the states of FIGS. 1 and 2.

[0057] When the production of the stacked stamping parts is completed, the two cylinders 5 drive the corresponding cylinder push rods (6, 18) respectively, and the support rod 13 is rotated 90° from the working position to the retracted position by the rotating shaft 7 and moved, that is, it returns to the state of FIG. 3. In this case, since the two support rods 13 are located in the area between the stamping device (the positioning base 101 of the material frame) and the stuffing device (the stuffing robot 102), it does not affect the stamping production and does not occupy the upper space of the stuffing device.

[0058] When the moving and rotating mechanism moves along the linear guide rail 19 on the base 2, the distance between the moving and rotating mechanism and the fixed rotating mechanism is changed. When the two support rods 13 rotate and switch to the working position, by adjusting the distance between the two support rods 13, the requirement of stacking stamping parts of different sizes is met.

[0059] In the working position and the retracted position, the distal ends of the support rod 13 in the working state and the retracted state are supported by the corresponding columns to prevent the deformation of the support rod. The working position and the retracted position are arranged at different positions on the stamping production line. For example, the retracted position and the working position are located on both sides of the stuffing device respectively. Only when it is necessary to carry in the stacked stamping parts, the support rod 13 rotates 90° to the working position to straddle the stuffing device. After the stacking process is completed, the support rod 13 returns to the retracted position so as not to occupy the upper space of the stuffing device.

[0060] Next, the working process will be described.

[0061] As shown in FIG. 5, when there is no need to pack the laminated stamping parts, the two support rods 13 of the flexible transfer table 104 are respectively located at the first retracted position 1051 and the second retracted position 1052. The flexible transfer table 104 is arranged in the area between the packing robot 102 and the stamping device (the positioning table 101 of the material frame) together with the first retracted position 1051 and the second retracted position 1052.

[0062] As shown in FIG. 6, the blanking belt conveyor and the packing belt conveyor 103 are interlocked to convey the stamping workpiece to be laminated along a predetermined material flow direction. During this period, the packing robot 102 located on both sides of the material flow direction grabs the workpiece and stacks it into a predetermined number, and then carries it into the positioning table 101 of the material frame of the stamping device. The flexible transfer table 104 of this embodiment executes the lamination process in conjunction with the packing robot 102.

[0063] Before lamination, after the moving and rotating holder 20 moves a predetermined distance along the linear guide rail 19, the cylinder 5 rotates the two support rods 13 by 90° through the corresponding push rods (6, 18), so that the flexible transfer table 104 rotates from the retracted position shown in FIG. 5 to the working position respectively. When the detection switch on the working column obtains a trigger signal, the cylinder 5 is locked. After the position switching is completed, it is possible to stack stamping parts of different sizes. For example, it moves to the position of the second position limiting block 21, and it is possible to stack the stamping parts 109 with a large size shown in FIG. 6.

[0064] As shown in FIG. 6, when stacking large-sized stamping parts 109, the stamping parts on the automatic line tail belt conveyor are received by the stuffing belt conveyor, and the stuffing robot 102 grabs the stamping parts and places them on the support rod 103 of the flexible transfer table 104. When a predetermined number of stamping parts are placed, the stuffing robot 102 grabs the large-sized stacked stamping part 110 and places it in the material frame on the positioning table 101 of the material frame. The above operations are repeated until the placement in the material frame on the positioning table 101 of the material frame is completed, and then an empty material frame waiting for loading onto the positioning table 101 of the material frame by the stuffing robot 102 is carried in, and stamping is performed.

[0065] After stamping is completed, the push rods 6 and 18 are respectively retracted by the two cylinders 5, and the two support rods 13 are respectively rotated from the working column to the retraction column. When the detection switch on the retraction column determines that the distal end of the support rod 13 has accurately reached the retraction position in response to the trigger signal, the cylinder 5 is locked, the flexible transfer table 104 is returned to the retracted state, and the upper space of the stuffing robot 102 is not occupied so that the stuffing robot 102 can continue to work.

[0066] As shown in FIG. 7, when stacking small-sized stamping parts 107, the stamping parts on the automatic line tail belt conveyor are received by the stuffing belt conveyor, and the stuffing robot 102 grabs the stamping parts and places them on the support rod 103 of the flexible transfer table 104. When a predetermined number of stamping parts are placed, the stuffing robot 102 grabs the small-sized stacked stamping part 108 and places it in the material frame on the positioning table 101 of the material frame. The above operations are repeated until the placement in the material frame on the positioning table 101 of the material frame is completed, and then an empty material frame waiting for loading onto the positioning table 101 of the material frame by the stuffing robot 102 is carried in, and stamping is performed.

[0067] After stamping is completed, the push rods 6 and 18 are respectively retracted by the two cylinders 5, and the two support rods 13 are respectively rotated from the working column to the retraction column. When the detection switch on the retraction column determines that the distal end of the support rod 13 has accurately reached the retraction position in response to the trigger signal, the cylinder 5 is locked, the flexible transfer table 104 is returned to the retracted state, and the upper space of the stuffing robot 102 is not occupied so that the stuffing robot 102 can continue to work.

[0068] In this embodiment, as shown in FIG. 6, when stacking large-sized stamping parts 109, the distal end of the support rod 13 corresponding to the moving and rotating mechanism is located at the first working position 1061. As shown in FIG. 6, when stacking small-sized stamping parts 107, the distal end of the support rod 13 corresponding to the moving and rotating mechanism is located at the second working position 1062. However, the distal end of the support rod 13 corresponding to the fixed rotating mechanism remains unchanged and is located on the third working position 1063. Therefore, by moving the moving and rotating mechanism to the fixed rotating mechanism, the interval after the support rod 13 rotates and switches to the working position becomes smaller, and it becomes possible to stack small-sized stamping parts.

[0069] The above-described operation process can be realized by PLC programming with the transfer table as a part of the production line.

[0070] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. It is obvious to those skilled in the art that various changes and modifications can be made. All corrections, equivalent substitutions, improvements, etc. made without departing from the spirit and principles of the present invention are included in the scope of the claims of the present invention.

Description of Reference Numerals

[0071] 1: Anchor plate 2: Base 3: Residual pressure release valve 4: Fixed rotation holder 5: Cylinder 6: First cylinder push rod 7: Rotation axis 8: Expansion sleeve 9: Bearing 10: Hinge shaft 11: Hinge seat 12: Spring 13: Support rod 14: Anti-slip plate 15: Wedge-shaped block 16: Telescopic shield 17: First position limiting block 18: Second cylinder push rod 19: Linear guide rail 20: Moving and rotating holder 21: Second position limiting block 22: Retraction column 23: First adjustment sheet 24: First mounting plate 25: Guide roller 26: First nylon plate 27: First switch holder 28: Second nylon plate 29: Second mounting plate 30: Second switch holder 31: Second adjustment sheet 32: Working column 33: Electromagnetic valve 34: Air pipe type drag chain 35: Flange plate 36: Pushing lid 37: Flat key 101: Positioning base of the material frame 102: Stuffing robot 103: Stuffing belt conveyor 104: Flexible transfer table 1051: First retraction position 1052: Second retraction position 1061: First working position 1062: Second working position 1063: Third working position 107: Small-sized stamping parts 108: Small-sized laminated stamping parts 109: Large-sized stamping parts 110: Large-sized laminated stamping parts

Claims

1. comprising a base, a support assembly, a working position, and a retracted position; one end of the base is connected to a fixed rotation mechanism, and the other end is movably connected to a moving rotation mechanism; the support assembly consists of at least two parts, the proximal end of each is connected to the top of the fixed rotation mechanism and the moving rotation mechanism, and the distal end is located at the working position or the retracted position according to the working state. When located at the working position, two support assemblies are arranged in parallel to place the stamping parts to be stacked. When located at the retracted position, by the moving rotation mechanism, one support assembly is moved along the base in a direction approaching the fixed rotation mechanism or away from the fixed rotation mechanism so that the distance between the support assemblies when located at the working position changes; a plurality of the working positions are arranged in parallel with their axes parallel to the base, and are for receiving the distal ends of the support assembly in the working state of the transfer table; the retracted positions are located at both ends of the base respectively, and are for receiving the distal ends of the support assembly in the retracted state of the transfer table. A flexible transfer table for jamming a stamping line, characterized by the above.

2. The fixed rotation mechanism includes a fixed rotation holder fixedly connected to the base. The fixed rotation holder is movably connected to the fixed end of a cylinder. The movable end of the cylinder is movably connected to the proximal end of a first cylinder push rod. The distal end of the first cylinder push rod is fixedly connected to the bottom of a rotating shaft. The top end of the rotating shaft is connected to the proximal end of the support assembly. A flexible transfer table for jamming a stamping line according to Claim 1, characterized by the above.

3. Both the cylinder and the first cylinder push rod are horizontally arranged, and the operating axis of the cylinder and the axis of the first cylinder push rod form a predetermined angle. By the telescopic movement of the cylinder, the proximal end of the first cylinder push rod is rotated around its distal end at a predetermined angle, and the support assembly is rotated by a rotating shaft connected to the proximal end of the first cylinder push rod and arranged vertically. The flexible transfer platform for stuffing the stamping line according to claim 2, characterized in that.

4. The moving and rotating mechanism includes a moving and rotating holder movably connected to the base. The moving and rotating holder is movably connected to the fixed end of the cylinder. The movable end of the cylinder is movably connected to the proximal end of the second cylinder push rod. The distal end of the second cylinder push rod is fixedly connected to the bottom of the rotating shaft. The uppermost end of the rotating shaft is connected to the proximal end of the support assembly. The flexible transfer platform for stuffing the stamping line according to claim 1, characterized in that.

5. Both the cylinder and the second cylinder push rod are horizontally arranged, and the operating axis of the cylinder and the axis of the second cylinder push rod form a predetermined angle. By the telescopic movement of the cylinder, the proximal end of the second cylinder push rod is rotated around its distal end at a predetermined angle, and the support assembly is rotated by a rotating shaft connected to the proximal end of the second cylinder push rod and arranged vertically. The flexible transfer platform for stuffing the stamping line according to claim 4, characterized in that.

6. The moving and rotating holder is movably connected to a linear guide rail provided at one end of the base, and is movable along the linear guide rail so as to approach or move away from the fixed and rotating holder. The upper surface of the linear guide rail is covered by a telescopic protective cover. The flexible transfer platform for stuffing the stamping line according to claim 4, characterized in that.

7. The moving and rotating holder is provided with a first position-limiting block on the end face facing the fixed rotating holder, and a second position-limiting block on the end face away from the fixed rotating holder, and is characterized by having trigger switches corresponding to the first position-limiting block and the second position-limiting block at the position where the linear guide rail is provided. The flexible transfer table for jamming of the stamping line according to claim 4.

8. The support assembly includes a support rod. The proximal end of the support rod is connected to the uppermost part of the moving and rotating holder and the fixed rotating holder, rotates by the corresponding moving and rotating holder and fixed rotating holder respectively, is arranged in parallel and continuously, and is characterized by having an anti-slip plate provided on the upper surface. The flexible transfer table for jamming of the stamping line according to claim 1.

9. The retracted position includes a retracted column. The uppermost part of the retracted column is connected to a first fixed plate arranged horizontally. One end of the first fixed plate is provided with a first switch holder for connecting a detection switch. The flexible transfer table for jamming of the stamping line according to claim 1.

10. The working position includes a working column. The uppermost part of the working column is connected to a second fixed plate arranged horizontally. One end of the second fixed plate is provided with a second switch holder for connecting a detection switch. The flexible transfer table for jamming of the stamping line according to claim 1.

Images