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CN-121988969-A - Multi-station overturning and shifting workbench and feeding and discharging method

CN121988969ACN 121988969 ACN121988969 ACN 121988969ACN-121988969-A

Abstract

A multi-station overturning and shifting workbench and a loading and unloading method belong to the technical field of shifting machines, the multi-station overturning and shifting workbench comprises an overturning base, a C-shaped overturning mechanism is rotatably arranged on the overturning base, a front clamping mechanism and a reverse clamping mechanism are respectively arranged on two sides of the overturning mechanism, the front clamping mechanism and the reverse clamping mechanism are both in sliding connection with the side wall of an opening of the overturning mechanism, locking pins for locking the positions of the front clamping mechanism and the reverse clamping mechanism are arranged on the overturning mechanism, the front clamping mechanism and the reverse clamping mechanism are oppositely arranged in the opening of the overturning mechanism and are used for clamping and fixing workpieces, the overturning mechanism is used for controlling the loading and unloading positions of the workpieces, an loading and unloading platform is respectively arranged on two sides of the overturning mechanism and is used for pushing the front clamping mechanism and the reverse clamping mechanism to be connected or separated with the overturning mechanism, double-side feeding and unloading of the workpieces are achieved, and space suitability for ultra-long and ultra-wide workpieces is greatly improved.

Inventors

  • WANG MINGGANG
  • DING CHUANGUANG
  • LIU BO
  • LIU DA
  • Xin Tonghui

Assignees

  • 济南二机床集团有限公司

Dates

Publication Date
20260508
Application Date
20260410

Claims (10)

  1. 1. A multi-station turnover position-changing workbench comprises a turnover base (4) and is characterized in that a C-shaped turnover mechanism (1) is rotatably arranged on the turnover base (4), a front clamping mechanism (2) and a reverse clamping mechanism (3) are respectively arranged on two sides of the turnover mechanism (1), the front clamping mechanism (2) and the reverse clamping mechanism (3) are both in sliding connection with the side wall of an opening of the turnover mechanism (1), locking pins (114) for locking the positions of the front clamping mechanism (2) and the reverse clamping mechanism (3) are arranged on the turnover mechanism (1), the front clamping mechanism (2) and the reverse clamping mechanism (3) are oppositely arranged in the opening of the turnover mechanism (1) and used for clamping and fixing workpieces, the turnover mechanism (1) is used for controlling the feeding and discharging positions of the workpieces, and a feeding and discharging platform (5) is respectively arranged on two sides of the turnover mechanism (1) and used for pushing the front clamping mechanism (2) and the reverse clamping mechanism (3) to be connected with or separated from the turnover mechanism (1) so as to realize the feeding and discharging actions of the workpieces.
  2. 2. The multi-station turnover position changing workbench according to claim 1, wherein the opening of the turnover mechanism (1) comprises two mounting surfaces which are arranged up and down oppositely and are parallel, a first guide wheel assembly (14), a first side guide groove (15), a safety hanging lug (16) and a locking pin (114) are arranged on each mounting surface, a side propping assembly (115) is arranged between the two mounting surfaces in the opening, and the side propping assembly (115) is opposite to the opening of the turnover mechanism (1).
  3. 3. The multi-station turnover displacement workbench according to claim 2, wherein the positive clamping mechanism (2) comprises a first clamp body (21), a first vertical jacking table (22) and a secondary leveling table (23) are sequentially arranged on the first clamp body (21) along the length direction of the first clamp body, a first safety hook (28), a first supporting wheel set (212), a second supporting wheel set (213), a first push-pull hole (218), a guide wheel groove (2101), a first guide groove (214) and a first locking hole (217) are arranged at the bottom of the first clamp body (21), the first safety hook (28) is used for being connected with a safety hanging lug (16), the first supporting wheel set (212) and the second supporting wheel set (213) are used for being connected with an upper blanking platform (5), the guide wheel groove (2101) is used for being connected with a first guide wheel assembly (14), the first locking hole (217) is used for being connected with a locking pin (114), a third supporting wheel set (215) which is transversely arranged in the first guide groove (214), and the third supporting wheel set (215) is used for being connected with one side of the first supporting wheel set (15).
  4. 4. A multi-station turnover displacement workbench according to claim 3, wherein the secondary leveling platform (23) comprises a first platform main body (231) fixedly arranged on the first clamp body (21), a secondary leveling lifting plate (232) is movably arranged at the top of the first platform main body (231), the secondary leveling lifting plate (232) is connected with the first platform main body (231) through a secondary leveling guide rod (239) and a secondary lifting oil cylinder (233), a swinging support arm (234) is rotatably arranged on one side, close to the first vertical lifting platform (22), of the first platform main body (231), and the first platform main body (231) is connected with the swinging support arm (234) through a swinging oil cylinder (235).
  5. 5. The multi-station turnover displacement workbench according to claim 3, wherein the reverse clamping mechanism (3) comprises a second clamp body (31), a second vertical jacking table (32) and a reverse horizontal clamp (34) are sequentially arranged on the second clamp body (31) along the length direction of the second clamp body, a second safety hook (313), an auxiliary wheel set (39), a fifth supporting wheel set (316), a second push-pull hole (317), a guide wheel groove (2101), a second guide groove (314) and a second locking hole (318) are arranged at the bottom of the second clamp body (31), the second safety hook (313) is used for being connected with a safety hanging lug (16), the auxiliary wheel set (39) and the fifth supporting wheel set (316) are used for being in contact with an opening installation surface, the second push-pull hole (317) is used for being connected with an upper blanking platform (5), the guide wheel groove (2101) is used for being connected with a first guide wheel assembly (14), the second locking hole (318) is used for being connected with a locking pin (114), a fourth supporting wheel set (315) which is transversely arranged in the second guide groove (314), and the fourth supporting wheel set (315) is used for being connected with one side of the guide groove (15).
  6. 6. The multi-station turnover displacement workbench according to claim 5, wherein the reversely-mounted horizontal clamp (34) comprises a sliding table (341), a horizontal guide rail (33) is arranged on the second clamp body (31) along the length direction of the second clamp body, the sliding table (341) is slidably connected with the horizontal guide rail (33), the sliding table (341) is connected with a first push-pull oil cylinder (35), an intermediate adjusting frame (342) is detachably mounted on the sliding table (341), the intermediate adjusting frame (342) is rotatably connected with a fish-eye support (343), and the fish-eye support (343) is used for carrying out auxiliary support on one end bottom of a workpiece.
  7. 7. The multi-station turnover displacement workbench according to claim 5, wherein the feeding and discharging platform (5) comprises a second platform main body (51) and a push-pull mechanism (52), the push-pull mechanism (52) is arranged at the middle position of the second platform main body (51), the push-pull mechanism (52) comprises a pull buckle (521) connected with a first push-pull hole (218) and a second push-pull hole (317), the pull buckle (521) is connected with a second push-pull oil cylinder (55), the second platform main body (51) is provided with a second side guide groove (54), a second guide wheel assembly (56) and a locking oil cylinder (57), the second side guide groove (54) corresponds to the first side guide groove (15) one by one, the second guide wheel assembly (56) corresponds to the first guide wheel assembly (14) one by one, and the locking oil cylinder (57) is used for being connected with the first locking hole (217) and the second locking hole (318).
  8. 8. A loading and unloading method using the multi-station turnover displacement workbench according to any one of claims 5 to 7, comprising: The loading and unloading platform (5) pulls the positive clamping mechanism (2) from the turnover mechanism (1) to the upper part of the positive clamping mechanism for loading, and the first vertical jacking platform (22) and the secondary leveling platform (23) are adjusted according to the size and the structure of the materials to support the workpiece on the positive clamping mechanism (2); After the feeding is finished, the feeding and discharging platform (5) pushes the positive clamping mechanism (2) carrying the workpiece into the turnover mechanism (1); the reverse clamping mechanism (3) above the forward clamping mechanism (2) respectively adjusts the positions of the second vertical jacking table (32) and the reverse horizontal clamp (34) according to the shape and the size of the workpiece so as to compress the workpiece, and then the side jacking assembly (115) jacks the workpiece to finish feeding; After loading is completed, the turnover mechanism (1) turns 180 degrees and turns to the position of the loading and unloading platform (5) on the other side, and the positions of the front clamping mechanism (2) and the reverse clamping mechanism (3) are reversed; After the overturning is completed, the first vertical jacking table (22) and the secondary leveling table (23) are restored to the initial positions, and the side jacking assembly (115) is reset to leave the workpiece; then, the loading and unloading platform (5) at the opening side pulls the reverse clamping mechanism (3) from the turnover mechanism (1) to the upper part of the reverse clamping mechanism for unloading.
  9. 9. The loading and unloading method of claim 8, further comprising: The upper and lower material loading platform (5) pulls the reverse clamping mechanism (3) from the turnover mechanism (1) to the upper part of the reverse clamping mechanism for loading, the positions of the second vertical jacking platform (32) and the reverse horizontal clamp (34) are respectively adjusted according to the size and the structure of the material so as to be used for supporting the workpiece, and the workpiece is placed on the reverse clamping mechanism (3); after the feeding is finished, the feeding and discharging platform (5) pushes the reverse clamping mechanism (3) carrying the workpiece into the turnover mechanism (1); The positive clamping mechanism (2) above the reverse clamping mechanism (3) respectively adjusts the first vertical jacking table (22) and the secondary leveling table (23) according to the shape and the size of the workpiece so as to compress the workpiece, and then the side jacking assembly (115) jacks the workpiece to finish feeding; After loading is completed, the turnover mechanism (1) turns 180 degrees, the positions of the loading and unloading platform (5) on the other side are turned over, and the positions of the front clamping mechanism (2) and the reverse clamping mechanism (3) are reversed; after the overturning is completed, the second vertical jacking table (32) and the reverse horizontal clamp (34) are restored to the initial positions, and the side jacking assembly (115) is reset to leave the workpiece; Then, the loading and unloading platform (5) at the opening side pulls the positive clamping mechanism (2) from the turnover mechanism (1) to the upper part of the positive clamping mechanism for unloading.
  10. 10. The loading and unloading method of claim 8, further comprising the step of 90 ° loading: The turnover mechanism (1) rotates by 90 degrees to enable the opening to face upwards, and the positive clamping mechanism (2) and the reverse clamping mechanism (3) are vertically distributed on two sides of the opening; the second vertical jacking table (32), the reverse horizontal clamp (34), the first vertical jacking table (22) and the secondary leveling table (23) are respectively adjusted according to the size of the workpiece, so that a space is reserved for workpiece feeding, and the side jacking assembly (115) is lifted for receiving the workpiece; The workpiece is placed into the turnover mechanism (1) to be in contact with the side jacking assembly (115), and the positions of the first vertical jacking table (22), the secondary leveling table (23), the second vertical jacking table (32) and the reversely-installed horizontal clamp (34) are adjusted to compress the workpiece; the turnover mechanism (1) performs forward 90-degree turnover or reverse 90-degree turnover and blanking according to the requirements.

Description

Multi-station overturning and shifting workbench and feeding and discharging method Technical Field The invention relates to the technical field of position changing machines, in particular to a multi-station overturning position changing workbench and a loading and unloading method. Background In machining and welding manufacturing, the workpiece is often subjected to space pose transformation to achieve multi-face machining or to optimize the welding process, so that workpiece overturning equipment and a welding positioner become key process equipment. The workpiece overturning equipment is core weldment deflection equipment in welding automation, can overturn and incline the workpiece, adjust any welding seam to a welding position easy to weld such as flat welding or ship welding, greatly improve the quality and efficiency of the welding seam, reduce the labor intensity, and can also be used for assembly, cutting and detection. However, the existing welding workpiece overturning equipment mostly adopts a single side feeding and discharging mode, when the existing welding workpiece overturning equipment faces ultra-long and ultra-wide special-shaped workpieces, the space adaptability is poor, interference is easy to occur, the conventional clamps are of a fixed structure, the feeding and clamping modes are single, a multi-dimensional adjustable clamping mechanism is lacked, positioning and reliable clamping of irregular and multi-appearance workpieces are difficult to achieve, and the use requirements of efficient, safe and flexible overturning of complex workpieces cannot be met. Disclosure of Invention In order to solve the technical problems that the existing workpiece overturning equipment in the background technology mostly adopts a single-side feeding and discharging mode, has poor space adaptability and is easy to interfere when facing ultra-long and ultra-wide special-shaped workpieces, the invention provides a multi-station overturning and shifting workbench and a feeding and discharging method. The technical scheme of the invention is as follows: The invention provides a multi-station turnover position-changing workbench, which comprises a turnover base, wherein a C-shaped turnover mechanism is rotatably arranged on the turnover base, a front clamping mechanism and a reverse clamping mechanism are respectively arranged on two sides of the turnover mechanism, the front clamping mechanism and the reverse clamping mechanism are both in sliding connection with the side wall of an opening of the turnover mechanism, locking pins for locking the positions of the front clamping mechanism and the reverse clamping mechanism are arranged on the turnover mechanism, the front clamping mechanism and the reverse clamping mechanism are oppositely arranged in the opening of the turnover mechanism and are used for clamping and fixing a workpiece, the turnover mechanism is used for controlling the feeding and discharging positions of the workpiece, and an upper and lower feeding platform is respectively arranged on two sides of the turnover mechanism and is used for pushing the front clamping mechanism and the reverse clamping mechanism to be connected with or separated from the turnover mechanism so as to realize the feeding and discharging actions of the workpiece. The C-shaped turnover mechanism is matched with the bilateral feeding and discharging platforms, so that the two sides of the workpiece are fed and discharged, the space adaptability to ultra-long and ultra-wide special-shaped workpieces is greatly improved, structural interference in the feeding and turnover processes is avoided, the two groups of clamping mechanisms of the front clamping mechanism and the back clamping mechanism are oppositely arranged and can be independently and slidably adjusted, the multi-dimensional adjustable clamping structure is matched, stable positioning and reliable clamping of irregular and multi-appearance workpieces can be realized, the flexible turnover requirement of complex workpieces is met, the driving part is not arranged along with the turnover mechanism, the volume and the rotational inertia of the rotation mechanism are reduced, the operation energy consumption is reduced, and meanwhile, the stability and the operation reliability of the turnover process are improved. Preferably, the opening of the turnover mechanism comprises two mounting surfaces which are arranged up and down oppositely and are parallel, each mounting surface is provided with a first guide wheel assembly, a first side guide groove, a safety hanging lug and a locking pin, a side propping assembly is arranged between the two mounting surfaces in the opening, and the side propping assembly is opposite to the opening of the turnover mechanism. The upper and lower parallel mounting surfaces provide a stable sliding foundation for the clamping mechanism, the guide wheels and the guide grooves are matched to enable the clamping mechanism to push a