Transfer machine for transferring workpieces between power and free chain conveying system and travelling crane

Abstract

The utility model discloses a transfer machine for transferring workpieces between a power and free chain conveying system and a travelling crane, which comprises a rack, a moving mechanism, at least two transfer parts and a lifting mechanism, the moving mechanism is arranged at the bottom of the rack and is configured to move the at least two transfer parts after a power and free trolley moves to a transfer station; the rack moves and moves back and forth between the power and free trolley and the travelling crane; the at least one transferring part is arranged on the two opposite sides of the rack, and the at least two transferring parts are movably arranged on the rack in the vertical direction; and the lifting mechanism is arranged on the rack and is configured to enable the transferring part to ascend or descend when the rack moves and moves back and forth between the power and free trolley and the travelling crane, so that the workpieces on the power and free trolley are transferred to the travelling crane or the workpieces on the travelling crane are transferred to the power and free trolley. Workpiece transfer operation between the power and free chain conveying system and the travelling crane can be achieved, operation efficiency is high, and safety and reliability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of accumulation and release chains, in particular to a transfer machine used for transferring workpieces between an accumulation and release chain conveying system and a traveling crane. Background Art

[0002] The power-free chain production line is a highly efficient automated production line conveying equipment. It connects various production links through the power-free chain conveying system to achieve continuous conveying and production of products. In the power-free chain production line, the transfer machine is usually used to move products from one production link to another, improving production efficiency and reducing manual operations. The transfer machine can work in conjunction with other conveying systems such as catenary conveyor systems, swing chain conveyor systems, self-propelled hoist conveyor systems, programmable crane conveyor systems and skid conveyor systems. This design allows products to be automatically and continuously conveyed through the power-free chain conveyor system at various stages of the coating process, such as spray pre-treatment, moisture drying, painting, leveling and paint drying.

[0003] Traditional transfer machines usually include pallet trucks, forklifts, stackers, conveyor belts, etc., which can carry workpieces from the power-free chain conveyor system and transfer them to the crane, or carry workpieces from the crane and transfer them to the power-free chain conveyor system. Manual transfer of workpieces between the power-free chain conveyor system and the crane by forklift is inefficient, and workpieces are prone to collision, which not only causes damage to the workpieces, but also poses a safety hazard. Therefore, there is an urgent need for a transfer machine suitable for transferring workpieces between the power-free chain conveyor system and the crane to improve work efficiency and operation safety. Utility Model Content

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a transfer machine suitable for transferring workpieces between a power-and-free chain conveyor system and a traveling crane.

[0005] To this end, the utility model provides a transfer machine for transferring workpieces between a power-free chain conveying system and a traveling crane, wherein the power-free chain conveying system comprises a chain track on which a conveying chain is laid, a bearing track, and a power-free trolley supported on the bearing track and driven to move by the conveying chain, wherein a transfer station is arranged on the bearing track, and the traveling crane is arranged at the position of the transfer station, and wherein the transfer machine comprises:

[0006] frame;

[0007] A moving mechanism is disposed at the bottom of the frame and is configured to: after the accumulation trolley moves to the transfer station, move the frame and move back and forth between the accumulation trolley and the traveling trolley;

[0008] At least one transfer unit is movably disposed on the frame in an up-down direction;

[0009] The lifting mechanism is arranged on the frame and is configured to: when the frame moves and travels back and forth between the accumulating trolley and the traveling crane, the transfer part is raised or lowered to realize the transfer of the workpiece on the accumulating trolley to the traveling crane or the transfer of the workpiece on the traveling crane to the accumulating trolley.

[0010] According to one embodiment of the utility model, the mobile mechanism includes a mobile track laid on the ground, a mobile wheel rotatably arranged at the bottom of the frame and supported on the mobile track, and a mobile power assembly arranged on the frame and used to drive the mobile wheel to rotate.

[0011] According to one embodiment of the utility model, the mobile power assembly includes a mobile motor arranged at the bottom of the frame, a transmission shaft connected to the mobile motor, a gear installed on the transmission shaft, and a rack laid on the ground along the extension direction of the mobile track, and the gear is meshed with the rack.

[0012] According to an embodiment of the present utility model, a sliding assembly is provided between the transfer portion and the frame.

[0013] According to an embodiment of the utility model, the sliding assembly includes a sliding seat and a sliding wheel disposed on the sliding seat and in rolling contact with the side wall of the frame.

[0014] According to one embodiment of the utility model, the lifting mechanism includes a lifting cylinder and a guide shaft slidably arranged on the frame along the up and down directions, one end of the guide shaft is connected to the cylinder shaft of the lifting cylinder, and the other end of the guide shaft is connected to the transfer part.

[0015] According to an embodiment of the present invention, the transfer machine includes two transfer parts, and the two transfer parts are arranged on two opposite sides of the frame.

[0016] According to an embodiment of the present invention, the transfer portion includes a base plate and at least one support rod disposed on the base plate and extending in a horizontal direction.

[0017] According to an embodiment of the present invention, the support rods of the two transfer parts extend relatively toward the inner side of the frame.

[0018] According to one embodiment of the utility model, the transfer machine includes a control mechanism, which includes a controller, at least one material detection sensor arranged at the transfer station and used to detect workpieces, and at least one trolley detection sensor arranged at the transfer station and used to detect an accumulation trolley. The controller is signal-connected to the material detection sensor and the trolley detection sensor, respectively. The controller is configured to: after the accumulation trolley moves to the transfer station, control the moving mechanism and the lifting mechanism based on feedback signals from the material detection sensor and the trolley detection sensor to move the frame and travel back and forth between the accumulation trolley and the traveling carriage, and to raise or lower the transfer part to achieve the transfer of the workpiece on the accumulation trolley to the traveling carriage or the transfer of the workpiece on the traveling carriage to the accumulation trolley.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] The transplanter of the utility model includes a frame, a moving mechanism, at least one transfer unit and a lifting mechanism. The moving mechanism is arranged at the bottom of the frame and is configured to move the frame and move back and forth between the accumulation trolley and the trolley after the accumulation trolley moves to the transfer station. At least one transfer unit is movably arranged on the frame in the up and down directions. The lifting mechanism is arranged on the frame and is configured to make the transfer unit rise or fall when the frame moves and moves back and forth between the accumulation trolley and the trolley so that the transfer unit transfers the workpiece on the accumulation trolley to the trolley or transfers the workpiece on the trolley to the accumulation trolley. The workpiece transfer operation between the accumulation chain conveyor system and the trolley can be realized, and the operation efficiency is high and safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a plan view of a transfer machine according to an embodiment of the utility model;

[0022] Figure 2 yes Figure 1 A side perspective view of the transfer machine shown in;

[0023] Figure 3 yes Figure 1 A top perspective view of the transfer machine shown in ;

[0024] Figure 4 It is a schematic diagram of an embodiment of the present invention in which an accumulation and release trolley of an accumulation and release chain conveying system hangs a workpiece and moves to a transfer station, and then a transfer machine moves toward one side of the accumulation and release trolley;

[0025] Figure 5 yes Figure 4 A local enlarged view of point A shown in FIG;

[0026] Figure 6It is a schematic diagram of a transfer machine according to an embodiment of the utility model carrying workpieces from a stacking trolley and moving toward a side of a traveling crane;

[0027] Figure 7 This is a schematic diagram of an embodiment of the utility model in which a transfer machine unloads a workpiece onto a material storage mechanism, and a crane mounts the workpiece from the material storage mechanism;

[0028] Figure 8 It is a side view schematic diagram of an embodiment of the utility model in which a transfer machine unloads a workpiece onto a material storage mechanism and a crane mounts the workpiece from the material storage mechanism;

[0029] Fig. 9 This is a schematic diagram of a transfer machine according to an embodiment of the utility model completing a workpiece transfer operation, with the workpiece being suspended by a crane;

[0030] Fig.10 This is a side view schematic diagram of a transfer machine in one embodiment of the utility model completing a workpiece transfer operation, with the workpiece being suspended by a crane;

[0031] Fig.11 This is a schematic diagram of a transfer machine according to an embodiment of the utility model completing the transfer operation of multiple workpieces, and the multiple workpieces are suspended by a crane;

[0032] Fig.12 This is a control flow chart of a transfer machine in one embodiment of the utility model transferring workpieces between a power-and-free chain conveyor system and a traveling crane;

[0033] The reference numerals are as follows:

[0034] 100. Transfer machine;

[0035] 1. Frame;

[0036] 2. Moving mechanism; 21. Moving track; 22. Moving wheel; 23. Moving power assembly; 231. Moving motor; 232. Transmission shaft; 233. Gear; 234. Rack;

[0037] 3. Transfer unit; 31. Base plate; 32. Support rod; 33. Sliding assembly; 331. Sliding seat; 332. Sliding wheel;

[0038] 4. Lifting mechanism; 41. Lifting cylinder; 42. Guide shaft; 43. Bushing;

[0039] 5. Material storage mechanism; 51. Material storage rack; 52. Storage space; 53. Support part;

[0040] 6. Control mechanism; 61. Controller; 62. Material detection sensor; 63. Carriage detection sensor;

[0041] 200, accumulation and release chain conveying system; 201, chain track; 202, load-bearing track; 203, accumulation and release trolley; 204, stopper; 205, hanging part; 206, hanging parts;

[0042] 300, traveling crane; 301, traveling track; 302, lifting motor; 303, rope reel; 304, lifting rope; 305, lifting part; 306, lifting parts; 307, traveling frame; 308, traveling motor; 309, traveling wheel;

[0043] 400, workpiece;

[0044] 500. Truss. DETAILED DESCRIPTION

[0045] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction on the technical solution of the utility model.

[0046] An embodiment of the utility model provides a transfer machine 100 for transferring a workpiece 400 between a power-free chain conveyor system 200 and a crane 300. The transfer machine 100 can transfer the workpiece 400 on the power-free chain conveyor system 200 to the crane 300, so that the workpiece 400 is hoisted to other workstations on the production line by the crane 300 for process processing of the corresponding process. Alternatively, the workpiece 400 hoisted on the crane 300 is transferred to the power-free chain conveyor system 200, so that it is transported to a downstream process by the power-free chain conveyor system 200 for process processing of the corresponding process.

[0047] It should be noted that the aforementioned production line can be a coating production line, or other production lines that use a power-and-release chain conveyor system to convey workpieces for process processing. For example, it can be an automobile coating production line, a casting workshop production line, an electrical parts assembly production line, a logistics and storage transportation line, etc. The workpiece 400 can be a large workpiece, and its structure and shape can be regular or irregular. The workpiece 400 can also be a batch of small workpieces, which are loaded through a material box, and there is no specific limitation.

[0048] Combination Figure 4 , Figure 5 As shown, in one embodiment of the present invention, a truss 500 is arranged in a workshop of an automobile painting production line, and the accumulation and release chain conveying system 200 and the crane 300 are respectively installed on the truss 500.

[0049] The accumulation and release chain conveying system 200 includes a chain track 201 on which a conveying chain (not shown) is laid, a carrying track 202, and an accumulation and release trolley 203 supported on the carrying track 202 and moved by the conveying chain. A transfer station is arranged on the carrying track 202, and the crane 300 is arranged at the transfer station position.

[0050] A stopper 204 is installed on the truss 500 near the bearing rail 202. The stopper 204 is closed by default, so that the accumulation trolley 203 traveling to the transfer station is intercepted by the stopper 204, and stops at the transfer station for accumulation. This allows the transfer machine 100 to move and travel back and forth between the accumulation trolley 203 and the trolley 300, so as to transfer the workpiece 400 on the accumulation trolley 203 to the trolley 300, so that the workpiece 400 can be transferred to the corresponding process equipment by the trolley 300 for process treatment, such as lifting the workpiece 400 to the powder dipping tank or the electrothermal tank of the coating production line by the trolley 300. Alternatively, the workpiece 400 on the crane 300 is transferred to the accumulation trolley 203, and transported to the next process by the accumulation trolley 203 for corresponding process processing. For example, after the automobile workpiece is dipped in powder or electrophoresis, it can be lifted by the crane 300 and separated from the dip pool or electrophoresis pool, and then transferred to the accumulation trolley 203 by the transfer machine 100, and transported to the downstream cleaning equipment or dehydration equipment by the accumulation trolley 203 for corresponding process processing. It should be noted that the upstream and downstream sequence of the process or the process equipment applicable to the transfer machine 100 is not specifically limited and will not be described in detail here.

[0051] The structure of the traveling crane 300 mainly includes a travel track 301, a lifting motor 302, a rope reel 303, a lifting rope 304, a lifting part 305, a lifting member 306, a traveling frame 307, a traveling motor 308 and a traveling wheel 309. The travel track 301 is arranged on the truss 500, the traveling frame 307 is movably arranged on the travel track 301 through the traveling wheel 309, the traveling motor 308 is arranged on the traveling frame 307 and is used to drive the traveling wheel 309 to rotate, the lifting motor 308 and the rope reel 303 are respectively installed on the traveling frame 307, the lifting motor 308 is connected to the rope reel 303 in a transmission manner, one end of the lifting rope 304 is wound around the rope reel 303, and the other end is connected to the lifting part 305, and the lifting member 306 is installed on the lifting part 305. There can be multiple lifting parts 305, and the multiple lifting parts 305 are arranged at intervals. One lifting part 305 can be used to hang one large workpiece or a material frame loaded with batches of small workpieces, and multiple lifting parts 305 are suitable for hanging multiple large workpieces or multiple material frames loaded with batches of small workpieces, without specific limitation.

[0052] according to Figure 1 , Figure 2 as well as Figure 3As shown, an embodiment of the present utility model provides a transfer machine 100 , the structure of which mainly includes a frame 1 , a moving mechanism 2 , a transfer part 3 and a lifting mechanism 4 .

[0053] The moving mechanism 2 is configured to move the frame 1 to travel back and forth between the accumulating trolley 203 and the traveling crane 300 of the accumulating chain conveying system 200 after the accumulating trolley 203 moves to the transfer station.

[0054] The moving mechanism 2 includes a moving track 21 laid on the ground, a moving wheel 22 rotatably arranged at the bottom of the frame 1 and supported on the moving track 21 , and a moving power assembly 23 arranged on the frame 1 and used for driving the moving wheel 22 to rotate.

[0055] The power is output to the moving wheel 22 through the moving power assembly 23, thereby driving the moving wheel 22 to move along the moving track 21, thereby driving the frame 1 to move.

[0056] Specifically, the mobile power assembly 23 includes a mobile motor 231 arranged at the bottom of the frame 1, a transmission shaft 232 connected to the mobile motor 231, a gear 233 installed on the transmission shaft 232, and a rack 234 laid on the ground along the extension direction of the mobile track 21, and the gear 233 is meshed with the rack 234.

[0057] Through the meshing transmission between the gear 233 and the rack 234, the power is output to the moving wheel 22, thereby driving the moving wheel 22 to move along the moving track 21, driving the frame 1 to move. In some embodiments, the moving power assembly 23 is not limited to the transmission structure of the gear rack, and other transmission structures may also be used, such as the moving motor 231 is connected to the moving wheel 22, or the moving wheel 22 is driven by a belt transmission structure, which is not specifically limited.

[0058] In order to realize the extension and retraction of the transfer part 3 in the up-down direction, so as to facilitate the transfer part 3 to load or unload the workpiece, the transfer part 3 is movably arranged on the frame 1 in the up-down direction. Specifically, a sliding assembly 33 is arranged between the transfer part 3 and the frame 1. The transfer part 3 can be moved in the up-down direction relative to the frame 1 through the sliding assembly 33, so as to realize the lifting action. The sliding assembly 33 includes a sliding seat 331, and a sliding wheel 332 arranged on the sliding seat 331 and in rolling contact with the side wall of the frame 1. In some embodiments, the sliding assembly 33 is not limited to the structure of a sliding seat pulley, but may also adopt the structure of a sliding seat rail or a sliding seat groove or a guide rail guide sleeve, without specific limitation.

[0059] There are two transfer parts 3, and the two transfer parts 3 are arranged on opposite sides of the frame 1. The transfer part 3 includes a base plate 31 and a support rod 32 arranged on the base plate 31. The support rods 32 of the two transfer parts 3 extend relatively toward the inner side of the frame 1. In some embodiments, there may be only one transfer part 3, which is suitable for carrying a material frame filled with small workpieces. In order to facilitate stable carrying of workpieces 400, such as large workpieces, the number of transfer parts 3 may be more than two, and more than two transfer parts 3 may be arranged on opposite sides of the frame 1, without specific limitation. In some embodiments, the support rod 32 of the transfer part 3 may be configured to be compatible with the hanging part 206 on the crane 300, or to be compatible with the shape of a large workpiece, or to be compatible with the shape of a material frame loaded with a batch of small workpieces, without specific limitation.

[0060] The lifting mechanism 4 is arranged on the frame 1 and is used to drive the transfer part 3 to rise or fall. The lifting mechanism 4 is configured to: when the frame 1 moves and travels back and forth between the accumulation trolley 203 and the trolley 300, the transfer part 3 rises or falls to achieve the transfer of the workpiece 400 on the accumulation trolley 203 to the trolley 300 or the transfer of the workpiece 400 on the trolley 300 to the accumulation trolley 203. Specifically, the lifting mechanism 4 includes a lifting cylinder 41, and a guide shaft 42 slidably arranged on the frame 1 along the up and down directions, one end of the guide shaft 42 is connected to the cylinder shaft of the lifting cylinder 41, and the other end of the guide shaft 42 is connected to the transfer part 3. A shaft sleeve 43 may be provided on the frame 1, and the guide shaft 42 is slidably fitted in the shaft sleeve 43. Since the guide shaft 42 is relatively long, a plurality of shaft sleeves 43 may be arranged on the frame 1 at intervals along the length direction of the guide shaft 42, and there is no specific limitation.

[0061] Combination Figure 4 , Figure 8 As shown, in order to facilitate the crane 300 to lift workpieces in batches and improve the workpiece transportation efficiency, in one embodiment of the utility model, a storage mechanism 5 can be provided at the transfer station.

[0062] Specifically, the material storage mechanism 5 includes a material storage rack 51, a storage space 52 disposed in the material storage rack 51 and capable of accommodating at least one workpiece 400, and at least one support portion 53 disposed on the material storage rack 51 and used to support the workpiece 400. In order to facilitate the temporary storage of multiple large workpieces or multiple material frames loaded with batches of small workpieces, multiple support portions 53 are disposed on the material storage rack 51, and the multiple support portions 53 are arranged at intervals. Among them, the shape and structure of the support portion 53 can be set to match the shape of a large workpiece, so as to be suitable for supporting a large workpiece, or to match the shape of a material frame loaded with batches of small workpieces, so as to be suitable for supporting a material frame loaded with batches of small workpieces, and there is no specific limitation.

[0063] Combination Figure 5 , Fig.12As shown, the transfer machine 100 may include a control mechanism 6. The control mechanism 6 may include a controller 61, a material detection sensor 62 and a trolley detection sensor 63 which are arranged on the truss 500 and located at the transfer station.

[0064] The controller 61 is signal-connected to the material detection sensor 62 and the trolley detection sensor 63 respectively, and the controller 61 is configured as follows: after the accumulating trolley 203 moves to the transfer station position, based on the feedback signals of the material detection sensor 62 and the trolley detection sensor 63, the moving mechanism 2 and the lifting mechanism 4 are controlled to move the frame 1 and travel back and forth between the accumulating trolley 203 and the trolley 300, and to raise or lower the transfer part 3 to realize the transfer of the workpiece 400 on the accumulating trolley 203 to the trolley 300 or the transfer of the workpiece 400 on the trolley 300 to the accumulating trolley 203.

[0065] The controller 61 may be a PLC controller or an industrial computer (IPC), the material detection sensor 62 may be a photoelectric sensor or an ultrasonic sensor, and the trolley detection sensor 63 may be a photoelectric sensor or a position sensor or an identification sensor, without any specific limitation.

[0066] Combination Figure 4 As shown, when the accumulation trolley 203 moves to the transfer station, the accumulation trolley 203 is intercepted by the stopper 204 because the stopper 204 is in the closed state, and the accumulation trolley 203 stops and accumulates on the carrying track 202 of the accumulation chain conveyor system 200. The trolley detection sensor 63 feeds back the detection signal (which can be a position signal or an identification signal) of the accumulation trolley 204 to the controller 61, and the material detection sensor 62 feeds back the detection signal of the workpiece mounted on the accumulation trolley 204 to the controller 61.

[0067] Combination Figure 6 As shown, the controller 61 sends a control signal to the mobile motor 231 based on the detection signals of the material detection sensor 62 and the trolley detection sensor 63. The mobile motor 231 drives the transfer machine 100 to move to the accumulation trolley 203. The controller 61 sends a control signal to the lifting cylinder 41, so that the lifting cylinder 41 drives the transfer part 3 to rise and carry the workpiece 400 on the accumulation trolley 203.

[0068] Combination Figure 7 , Figure 8 As shown, the controller 61 sends a control signal to the moving motor 231, so that the moving motor 231 drives the transfer machine 100 to move to the material storage mechanism 5 below the position of the traveling vehicle 300 for temporary storage.

[0069] Combination Fig. 9 , Fig.10As shown, the controller 61 sends a control signal to the crane 300, thereby controlling the crane 300 to lift the workpiece to other equipment on the production line for processing in the corresponding process.

[0070] Combination Fig.11 As shown, multiple accumulating trolleys 203 can be parked and accumulated on the carrying track 201 of the accumulating chain conveying system 200. When the multiple accumulating trolleys 203 move to the transfer station, the front accumulating trolley 203 is intercepted by the stopper 204, and the subsequent accumulating trolleys 203 are successively blocked by the previous accumulating trolley 203, so that the multiple accumulating trolleys 203 are leaning against each other in an accumulating parking state, so that multiple workpieces 400 are transported to the transfer station, and then the controller 61 controls the transfer machine 100 to move and travel back and forth between the accumulating trolley 203 and the trolley 300, so as to transfer the workpieces 400 to the trolley 300 one by one.

[0071] In certain embodiments, the accumulating trolley 203 of the accumulating chain conveying system 200 can also transport the workpieces 400 to the transfer station one by one, and the transfer machine 100 travels back and forth between the accumulating trolley 203 and the crane 300 multiple times. The transfer machine 100 can transfer the workpieces one by one to the storage mechanism 5 for temporary storage. After a plurality of workpieces 400 are stored in the storage mechanism 5, the controller 61 sends a control signal to the crane 300 to control the crane 300 to lift a plurality of workpieces 400 in batches, thereby realizing batch operations and improving operation efficiency. There is no specific limitation.

[0072] It should be noted that the accumulation chain conveyor system 200 transports the workpiece 400 to the transfer station via the accumulation trolley 203, and the transfer machine 100 transfers the workpiece 400 on the accumulation trolley 203 to the crane 300. In some embodiments, the transfer machine 100 can also transfer the workpiece 400 hoisted on the crane 300 to the accumulation trolley 203 of the accumulation chain conveyor system 200. Specifically, the crane 300 can lift a plurality of workpieces 400 that have been processed to the storage mechanism 5 for temporary storage, and then the accumulation chain conveyor system 200 can transport the empty accumulation trolley 203 to the transfer station via the carrying rail 201 and be intercepted and accumulated by the stopper 204, and then the controller 61 can control the transfer machine 100 to move and move to

[0073] Return between the accumulation trolley 203 and the traveling crane 300, and transfer the workpieces 400 temporarily stored on the storage mechanism 5 to the accumulation trolley 203 one by one. Then the controller 61 can send a control signal to the stopper 204, thereby opening the stopper 204, and releasing the accumulation trolley 203 fully loaded with workpieces, so that the accumulation trolley 203 is transported to the downstream process for corresponding process processing, without specific limitation.

[0074] The technical scope of the present invention is not limited to the contents in the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical concept of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A transfer machine for transferring workpieces between a power-free chain conveyor system and a traveling crane, wherein the power-free chain conveyor system comprises a chain track on which a conveyor chain is laid, a bearing track, and a power-free trolley supported on the bearing track and driven to move by the conveyor chain, wherein a transfer station is arranged on the bearing track, and the traveling crane is arranged at the position of the transfer station, and wherein: The transfer machine comprises: Rack(1); A moving mechanism (2) is arranged at the bottom of the frame (1) and is configured to: after the accumulating trolley moves to the transfer station, move the frame (1) back and forth between the accumulating trolley and the traveling carriage; At least one transfer unit (3) is movably arranged on the frame (1) in an up-down direction; A lifting mechanism (4) is disposed on the frame (1) and is configured to cause the transfer portion (3) to rise or fall when the frame (1) moves and reciprocates between the accumulating trolley and the traveling crane so as to transfer the workpiece on the accumulating trolley to the traveling crane or to transfer the workpiece on the traveling crane to the accumulating trolley.

2. The transfer machine according to claim 1, characterized in that: The moving mechanism (2) comprises a moving track (21) laid on the ground, a moving wheel (22) rotatably arranged at the bottom of the frame (1) and supported on the moving track (21), and a moving power assembly (23) arranged on the frame (1) and used for driving the moving wheel (22) to rotate.

3. The transfer machine according to claim 2, characterized in that: The mobile power assembly (23) comprises a mobile motor (231) arranged at the bottom of the frame (1), a transmission shaft (232) connected to the mobile motor (231), a gear (233) mounted on the transmission shaft (232), and a rack (234) laid on the ground along the extension direction of the mobile track (21), the gear (233) meshing with the rack (234).

4. The transfer machine according to claim 1, characterized in that: A sliding assembly (33) is provided between the transfer portion (3) and the frame (1).

5. The transfer machine according to claim 4, characterized in that: The sliding assembly (33) comprises a sliding seat (331) and a sliding wheel (332) arranged on the sliding seat (331) and in rolling contact with a side wall of the frame (1).

6. The transfer machine according to claim 1, characterized in that: The lifting mechanism (4) comprises a lifting cylinder (41) and a guide shaft (42) slidably arranged on the frame (1) in an up-down direction, one end of the guide shaft (42) being connected to the cylinder shaft of the lifting cylinder (41), and the other end of the guide shaft (42) being connected to the transfer part (3).

7. The transfer machine according to claim 1, characterized in that: The transfer machine comprises two transfer parts (3), and the two transfer parts (3) are arranged at two opposite sides of the frame (1).

8. The transfer machine according to claim 7, characterized in that: The transfer part (3) comprises a base plate (31) and at least one support rod (32) arranged on the base plate (31).

9. The transfer machine according to claim 8, characterized in that: The support rods (32) of the two transfer parts (3) extend relatively toward the inner side of the frame (1).

10. The transfer machine according to claim 1, characterized in that: The transfer machine comprises a control mechanism (6), the control mechanism (6) comprising a controller (61), at least one material detection sensor (62) arranged at the transfer station and used to detect workpieces, and at least one trolley detection sensor (63) arranged at the transfer station and used to detect an accumulation trolley. The controller (61) is signal-connected to the material detection sensor (62) and the trolley detection sensor (63), respectively. The controller (61) is configured to: after the accumulation trolley moves to the transfer station, control the moving mechanism (2) and the lifting mechanism (4) based on feedback signals from the material detection sensor (62) and the trolley detection sensor (63), so that the frame (1) moves and travels back and forth between the accumulation trolley and the traveling crane, and so that the transfer part (3) rises or falls to achieve the transfer of the workpiece on the accumulation trolley to the traveling crane or the transfer of the workpiece on the traveling crane to the accumulation trolley.

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