Workpiece circulation exchange device

Abstract

The utility model relates to the technical field of machining, in particular to a workpiece circulation and exchange device. Comprising a workpiece circulation exchange workbench and a workpiece universal clamp used for containing a motor base, the workpiece universal clamp is fixedly connected with the upper plane of the workpiece circulation exchange workbench, and the bottom of the workpiece circulation exchange workbench is provided with a guide rail groove used for guiding the workpiece circulation exchange workbench when the workpiece circulation exchange workbench enters and exits a machining station. The surface of the workpiece universal clamp is provided with a spigot used for being matched with a motor base, and the center of the spigot is provided with a center through hole penetrating through the top and the bottom. According to the device, the working efficiency of an automatic production line is remarkably improved, assembly errors are reduced, the consistency of product quality is ensured, disassembly is easy and convenient, and full-automatic circulation of workpieces among all stations is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing technical field, concretely relates to a workpiece flow exchange device. BACKGROUND

[0002] In the modern motor manufacturing and mechanical processing industry, there is still a lack of an automated device that can effectively support the rapid flow of workpieces between various stations. The current workpiece transfer method mainly relies on manual operation or semi-automatic equipment, which not only limits the speed of the production line, but also increases the risk of human error. For example, on a traditional production line, the transfer of large workpieces such as motor frames usually requires the use of cranes, forklifts or single-arm cranes to perform multiple handling, turning and unloading operations. These processes are complex and time-consuming, which seriously affects the overall production efficiency.

[0003] In addition, the workpiece flow system in the prior art also has obvious deficiencies in disassembly and reinstallation. The transfer of workpieces cannot be completely independent of manual intervention, and the disassembly process is complex and inefficient. These problems not only affect the consistency and reliability of product quality, but also restrict the overall efficiency of the automated production line.

[0004] Therefore, there is an urgent need for an automated device that supports the rapid flow of workpieces between various stations. SUMMARY

[0005] In view of the above, the present application provides a workpiece flow exchange device that can achieve the rapid flow of motor frames between various stations, and is simple to disassemble and efficient.

[0006] The workpiece flow exchange device provided by the present application comprises a workpiece flow exchange workbench and a workpiece universal clamp for placing a motor frame. The workpiece universal clamp is fixedly connected to the upper surface of the workpiece flow exchange workbench. The bottom of the workpiece flow exchange workbench is provided with a guide rail groove for guiding the workpiece flow exchange workbench when it enters or exits the machining station. The surface of the workpiece universal clamp is provided with a stop opening for adapting to the motor frame. The center of the stop opening is provided with a center through hole that penetrates the top and bottom.

[0007] The embodiment of the present application realizes efficient and accurate positioning and fixing of the motor frame before and after machining by integrating the workpiece circulation exchange workbench and the workpiece universal fixture for placing the motor frame. The workpiece universal fixture is fixedly connected with the upper plane of the workpiece circulation exchange workbench, thereby ensuring the stable connection between the two and improving the stability of the overall structure. The design of the bottom guide rail groove not only provides accurate guidance for entering and exiting the machining station, but also simplifies the installation and disassembly process. The center of the stopper is provided with a center through hole penetrating the top and bottom, which facilitates necessary measurement and operation, and at the same time ensures the accurate alignment of the motor frame. The device significantly improves the work efficiency of the automatic production line, reduces assembly errors and ensures the consistency of product quality.

[0008] In one embodiment, the workpiece universal fixture comprises a tooling plate fixedly connected with the upper plane of the workpiece circulation exchange workbench, and the upper plane of the tooling plate is provided with auxiliary pressing devices at two corners thereof for axial limiting cooperation with the top of the motor frame.

[0009] In one embodiment, the workpiece universal fixture comprises a tooling plate fixedly connected with the upper plane of the workpiece circulation exchange workbench, and the upper plane of the tooling plate is provided with auxiliary pressing devices at two corners thereof for axial limiting cooperation with the top of the motor frame.

[0010] In one embodiment, the auxiliary pressing device comprises a height-adjustable connecting rod and a hook-shaped clamp provided at the top of the connecting rod and rotatable around the axis of the connecting rod, and the hook-shaped clamp is used for axial limiting cooperation with the top of the motor frame.

[0011] In one embodiment, the auxiliary pressing device comprises a height-adjustable connecting rod and a hook-shaped clamp provided at the top of the connecting rod and rotatable around the axis of the connecting rod, and the hook-shaped clamp is used for axial limiting cooperation with the top of the motor frame.

[0012] In one embodiment, the stopper is an annular stepped inner stopper.

[0013] In one embodiment, the stopper is an annular stepped inner stopper.

[0014] In one embodiment, the tooling plate is provided with auxiliary positioning devices outside the auxiliary pressing devices for limiting cooperation with the bottom foot of the motor frame, the auxiliary positioning devices comprise an angular positioning support, a locking nut and a clamping bolt, the auxiliary positioning devices are provided with a plurality of positioning adjustment holes distributed in the horizontal direction, the clamping bolt is arranged in the positioning adjustment hole and abuts against the outside of the bottom foot, and the locking nut is threadedly connected with the clamping bolt.

[0015] The auxiliary positioning device of the embodiment of the application strengthens the foot limiting of the motor base. The clamping bolt on the angle positioning support can be screwed into the hole according to the opening of the workpiece blank foot, and the locking nut on the clamping bolt is pre-tightened to prevent loosening after adjustment. The structure not only provides reliable foot limiting, but also increases the flexibility and adaptability of the system. The auxiliary positioning device can realize the auxiliary positioning function of different specifications of workpieces by replacing long and short clamping bolts and adjusting the position of the clamping bolt on the angle positioning support, so as to ensure accurate positioning of each workpiece and improve the machining precision and product quality.

[0016] In one embodiment, the tool plate is provided with tool plate mounting bolts on both sides of the stop opening for cooperation with the tool plate connecting holes on the workpiece flow exchange workbench, tool plate positioning screws for cooperation with the tool plate positioning pin holes on the workpiece flow exchange workbench, and tensioning screws for cooperation with the workbench waist-shaped grooves on the workpiece flow exchange workbench.

[0017] The embodiment of the application ensures the stable connection between the workpiece universal fixture and the workpiece flow exchange workbench through the design of the mounting bolts, positioning screws and tensioning screws on the tool plate. Not only the stability of the workpiece during the entire machining process is ensured, but also the installation and disassembly process is simplified, and the convenience and efficiency of operation are improved.

[0018] In one embodiment, the workpiece flow exchange workbench includes two upwardly protruding upper protrusions on both sides and a bottom protrusion protruding downward from the bottom, the upper part of the side surface of the workpiece flow exchange workbench is wider than the lower part, and the side surface of the workpiece flow exchange workbench is provided with a cylindrical bolt hole extending inwardly at the position with smaller width.

[0019] The embodiment of the application can reliably fix the workbench when turning over and cleaning the workpiece at the cleaning station through the design of the cylindrical bolt hole, ensuring the safety and reliability of operation.

[0020] In one embodiment, the lower plane of the workpiece flow exchange workbench is provided with a downwardly opening positioning cone bowl inside the bottom protrusion.

[0021] The embodiment of the application can cooperate with the tapered positioning pin on the quick positioning and clamping tool of each device through the setting of the downwardly opening positioning cone bowl, realizing automatic alignment and positioning locking. Not only the repeated positioning accuracy of the workpiece at each station is improved, but also the stability and reliability of the system are enhanced. The cooperation form of the cone bowl and the tapered positioning pin is superior to the traditional guide column and guide sleeve, which can more effectively ensure the accurate positioning of the workpiece during the machining process, reduce the positioning error, and improve the machining precision and product quality.

[0022] In one embodiment, the workpiece flow exchange workbench is provided with a positioning buffer puller at one end face along the length direction of the guide groove and a feeding and taking handle at the other end face.

[0023] The positioning buffer puller and the feeding and taking handle ensure the smooth transmission and safe operation of the workpiece flow exchange workbench between different stations. The positioning buffer puller interacts with the polyurethane (PU) rod in the corresponding guide hole of the equipment fast positioning clamping tooling, realizing the slow positioning action of the workbench and being beneficial to long-term maintenance of the mold system accuracy. The feeding and taking handle serves as the interface part of the RGV car for pushing and pulling the exchange workbench, simplifying the operation process and improving the operation efficiency.

[0024] In one embodiment, the guide groove is a T-shaped guide groove with a larger upper opening width than lower opening width.

[0025] The workpiece flow exchange device provided by the embodiment of the present application realizes efficient and accurate positioning and fixing of the motor frame before and after machining by integrating the workpiece flow exchange workbench and the workpiece universal clamp for placing the motor frame. The workpiece universal clamp is fixedly connected with the upper plane of the workpiece flow exchange workbench, ensuring the stable connection therebetween and improving the stability of the overall structure. The design of the bottom guide groove not only provides accurate guidance for entering and exiting the machining station, but also simplifies the installation and disassembly process. The center of the stopper is provided with a center through hole penetrating the top and bottom, facilitating necessary measurement and operation, and ensuring accurate alignment of the motor frame. The device significantly improves the work efficiency of the automatic production line, reduces assembly errors, ensures the consistency of product quality, is easy to disassemble, and realizes full automation of workpiece flow between stations. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0027] Figure 1 is a structural schematic view of a workpiece flow exchange device provided by an embodiment of the present application;

[0028] Figure 2 is a structural schematic view of a workpiece universal clamp provided by an embodiment of the present application;

[0029] Figure 3 is Figure 2 the front view of

[0030] Figure 4 isFigure 2 Top view;

[0031] Figure 5 This is an assembly diagram of a general-purpose workpiece fixture and a motor base provided in one embodiment of this application;

[0032] Figure 6 This is a front view of a workpiece transfer and exchange worktable provided in an embodiment of this application;

[0033] Figure 7 yes Figure 6 A schematic diagram of the three-dimensional structure;

[0034] Figure 8 yes Figure 6 Top view;

[0035] Figure 9 yes Figure 6 A bottom view;

[0036] In the diagram: 40 - motor base, 401 - foot;

[0037] 41-General workpiece fixture, 411-Tooling plate, 4111-Stop, 4112-Center through hole, 4113-Counterhead, 412-Auxiliary clamping device, 4121-Connecting rod, 4122-Hook-shaped fixture, 413-Auxiliary positioning device, 4131-Angle positioning bracket, 4133-Clamping bolt, 4134-Locking nut, 4131a-Positioning adjustment hole, 414-Tooling plate mounting bolt, 415-Tooling plate positioning screw, 416-Tightening screw;

[0038] 42-Workpiece transfer and exchange worktable, 421-Guide rail groove, 422-Upper boss, 423-Bottom boss, 424-Positioning cone cup, 425-Positioning buffer pull pin, 426-Feeding and unloading handle, 427-Cylindrical pin hole, 428-Worktable waist-shaped groove, 429-Tooling plate connecting hole, 430-Tooling plate positioning pin hole. Detailed Implementation

[0039] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0040] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0041] In addition, in the description of the present application and the appended claims, the terms "first", "second", "third", etc. are used only to distinguish descriptions and cannot be understood as indicating or implying relative importance.

[0042] Reference to "one embodiment" or "some embodiments" or "one implementation" or "some implementations" etc. in the present application description means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearance of the phrases "in one embodiment", "in some embodiments", "in other some embodiments", "in yet some embodiments" etc. in various places in the specification is not necessarily all referring to the same embodiment, but means "one or more but not all embodiments", unless otherwise specifically noted. The terms "include", "contain", "have" and their variants mean "including but not limited to", unless otherwise specifically noted.

[0043] As shown in Figure 1 The workpiece flow exchange device provided by the embodiments of the present application includes a workpiece flow exchange workbench 42 and a workpiece universal clamp 41 for placing a motor frame 40. The workpiece universal clamp 41 is fixedly connected with the upper plane of the workpiece flow exchange workbench 42. The bottom of the workpiece flow exchange workbench 42 is provided with a guide rail groove 421 for guiding the workpiece flow exchange workbench 42 when entering and leaving a machining station. The surface of the workpiece universal clamp 41 is provided with a stop opening 4111 for adapting to the motor frame 40. The center of the stop opening 4111 is provided with a center through hole 4112 penetrating the top and bottom.

[0044] In application, the workpiece flow exchange device is used to realize the intelligent flow of workpieces (i.e. motor frames) in different stations in a production line. The workpiece flow exchange workbench 42 is a main component for exchanging and positioning the workpieces between the equipment stations in the production line and automatic clamping. The workpiece flow exchange workbench 42 is integrally cast and shaped and then processed in place after aging treatment. The center through hole 4112 facilitates subsequent process operations such as measurement and drilling, and at the same time ensures the accurate alignment of the motor frame, reduces the assembly error and ensures the consistency of product quality, and also facilitates the entry of tools and the discharge of iron filings in the subsequent process. The upper plane of the workpiece flow exchange workbench 42 is formed into a mounting surface matched with the workpiece universal clamp 41 through high-precision processing, and the two are fixedly connected through bolts. The guide rail groove 421 is located at the lower part of the workbench and is designed as a T-shaped groove structure, allowing the workbench to smoothly slide on an RGV trolley or other transmission equipment. The stop opening 4111 is designed as an annular stepped inner stop opening and is suitable for motor frames 40 of different specifications.

[0045] In one embodiment, as Figures 2 to 5As shown, the workpiece general fixture 41 includes a tooling plate 411 fixed to the upper plane of the workpiece flow exchange workbench 42, and the upper plane of the tooling plate 411 is provided with auxiliary pressing devices 412 for axial limiting cooperation with the top of the motor frame 40.

[0046] In application, the auxiliary pressing devices 412 further enhance the axial limiting effect of the motor frame. By providing these devices at the two corners of the upper plane of the tooling plate 411, the offset or vibration of the motor frame during processing can be effectively prevented, thereby improving the processing precision and reliability. It is particularly suitable for occasions that require high-precision processing, can significantly reduce product defects caused by looseness, and improve the yield. In addition, the introduction of auxiliary pressing devices makes the operation more convenient, reduces manual intervention, and improves production efficiency.

[0047] In one embodiment, the auxiliary pressing devices 412 include a height-adjustable connecting rod 4121 and a hook-shaped clamp 4122 provided at the top of the connecting rod 4121 and rotatable around the axis of the connecting rod 4121, the hook-shaped clamp 4122 is used for axial limiting cooperation with the top of the motor frame 40.

[0048] In application, the operator can adjust the height of the connecting rod according to different specifications of the motor frame, and achieve quick locking and unlocking by rotating the hook-shaped clamp. The connecting rod 4121 adopts a segmented design, which can adapt to motor frames 40 of different heights by replacing segments of different lengths or adjusting the number of segments. The hook-shaped clamp 4122 is a rotatable piece that can fit the surface of the workpiece when it comes into contact with the motor frame 40, and the lower surface of the hook-shaped clamp directly presses on the inclined support rib of the motor frame bottom foot plate to achieve the axial limiting function. The hook-shaped clamp 4122 can rotate freely before being locked, so that it can be adjusted to the appropriate position before the motor frame is placed, and then locked after the direction is adjusted.

[0049] In one embodiment, the stop 4111 is an annular stepped inner stop 4111.

[0050] In application, the design of the annular stepped inner stop 4111 aims to provide a unified positioning reference for motor frames of different specifications. The stop is composed of multiple concentric rings, and the difference between the inner and outer rings forms a stepped structure, which ensures accurate positioning of the motor frame when placed. In addition, there is enough space inside the stop as a tool safety clearance area to ensure that the machining of various parts of the inner bore is completed in one clamping, and it is also convenient for cleaning the generated iron filings.

[0051] In one embodiment, the tooling plate 411 is provided with a sink 4113 on both sides of the stop 4111, which is connected to the stop, and the sink is used for the avoidance of the fixed structure of the motor frame during installation, and facilitates the operator's self-checking of the total length dimension tolerance of the finished product motor frame, providing protection for improving workpiece quality.

[0052] In one embodiment, the tool plate 411 is provided with an auxiliary positioning device 413 outside the auxiliary pressing device 412 for limiting cooperation with the bottom foot 401 of the motor base 40. The auxiliary positioning device 413 includes an angular positioning bracket 4131, a locking nut 4134, and a clamping bolt 4133. The auxiliary positioning device 413 is provided with a plurality of positioning adjustment holes 4131a distributed in the horizontal direction. The clamping bolt 4133 is inserted into the positioning adjustment hole 4131a and abuts the outer side of the bottom foot 401. The locking nut 4134 is threadedly connected with the clamping bolt 4133.

[0053] In application, the angular positioning bracket 4131 is fixed on the tool plate 411, and the positioning adjustment holes 4131a are drilled thereon. These holes are arranged according to different opening distances of the motor base bottom foot, so as to adapt to various specifications of workpieces. After the clamping bolt 4133 is inserted into the corresponding positioning adjustment hole, the depth of rotation can be adjusted according to actual needs, so that the front end of the clamping bolt lightly abuts against the outer side of the motor base bottom foot 401. Finally, the locking nut 4134 is used to pre-tighten and prevent loosening of the clamping bolt, so as to ensure that the motor base remains stable and immovable during the entire machining process.

[0054] In one embodiment, the tool plate 411 is provided with a tool plate mounting bolt 414 on both sides of the stopper 4111 for cooperation with the tool plate connecting hole 429 on the workpiece flow exchange workbench 42, a tool plate positioning screw 415 for cooperation with the tool plate positioning pin hole 430 on the workpiece flow exchange workbench 42, and a tensioning screw 416 for cooperation with the workbench waist groove 428 on the workpiece flow exchange workbench 42.

[0055] In application, the connection between the tool plate 411 and the workpiece flow exchange workbench 42 is realized through a "one side and two pin" structure, that is, the lower plane of the tool plate is attached to the cooperation surface of the upper C-shaped boss (i.e., the upper boss) of the workbench, and the tool plate positioning screw 415 is cooperated with the tool plate positioning pin hole 430 to ensure the accurate relative position relationship between the two. Subsequently, the tool plate mounting bolt 414 is inserted through the tool plate connecting hole 429 to firmly combine the two. The tensioning screw 416 is embedded in the workbench waist groove 428, allowing a certain degree of floating adjustment to ensure that the tool plate can achieve the optimal horizontal state during installation.

[0056] In one embodiment, as shown in Figures 6 to 9 The workpiece flow exchange workbench 42 includes two upwardly protruding upper bosses 422 on both sides and a downwardly protruding bottom boss 423 at the bottom. The upper part of the side surface of the workpiece flow exchange workbench 42 is wider than the lower part, and the side surface of the workpiece flow exchange workbench 42 is provided with a cylindrical pin hole 427 extending inwardly at the position with smaller width.

[0057] In application, the workpiece flow exchange workbench 42 is overall solid in structure, and the upper bosses 422 and the bottom boss 423 on both sides enhance the structural strength. The design of the side width variation (wide at the top and narrow at the bottom) helps to reduce the weight, and also facilitates the interactive operation with other components such as cleaning devices and the like. The cylindrical pin holes 427 are distributed at the position with smaller width, which can play a fixing role when the workpiece is turned over for cleaning at the cleaning station, ensuring the safety of the workpiece and the convenience of operation.

[0058] In one embodiment, the lower plane of the workpiece flow exchange workbench 42 is provided with a downwardly open positioning cone bowl 424 inside the bottom boss 423.

[0059] In application, the positioning cone bowl 424 is designed in the form of opening downward, which is used to accommodate and tightly fit the tapered positioning pins on the quick positioning and clamping tool of each device. When the workpiece flow exchange workbench 42 is sent into the machining area, the positioning cone bowl 424 will be in contact with the tapered positioning pins, automatically guiding the workbench to the correct machining position. This matching mode is more accurate than the traditional guide column and guide sleeve, reduces the positioning error, and improves the machining precision.

[0060] In one embodiment, the workpiece flow exchange workbench 42 is provided with a positioning buffer puller 425 at one end along the length direction of the guide rail groove 421, and a feeding and taking handle 426 at the other end.

[0061] In application, the positioning buffer puller 425 is installed at one end of the workpiece flow exchange workbench 42, and when the workbench approaches the target station, its positioning buffer puller will be in contact with the polyurethane (PU) rod on the tail baffle of the guide pressure plate, realizing slow positioning action and protecting the system from impact damage. The feeding and taking handle 426 is located at the other end of the workbench, which is the key interface part of the RGV car pushing and pulling the workpiece flow exchange workbench, and its design needs to consider the convenience and safety of the operator, and usually adopts a C-shaped structure to provide sufficient holding space.

[0062] In one embodiment, the guide rail groove 421 is a T-shaped guide rail groove with the upper opening width greater than the lower opening width.

[0063] In application, the design purpose of the T-shaped guide rail groove 421 is to provide stable guiding support without affecting the flexibility of the workbench movement. The lower opening is smaller than the upper opening, which can realize the limiting in the height direction when the T-shaped guide rail groove 421 cooperates with the guide pressure plate on the quick positioning and clamping tool, so as to follow the lifting of the guide pressure plate.

[0064] The working principle of the device is as follows:

[0065] The operator places the motor frame 40 blank on the workpiece universal fixture 41 at the workpiece line preparation area. The motor frame is accurately positioned by the stop 4111 on the tooling plate 411 and the auxiliary positioning device 413, and is securely fixed by the auxiliary clamping device 412. Then, the workpiece universal fixture 41 is assembled to the workpiece flow transfer exchange table 42 to form a motor frame assembly. During the entire machining process, the motor frame assembly is transferred as a whole.

[0066] The above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A workpiece flow transfer exchange apparatus characterized by comprising: The utility model provides a motor stator core workpiece flow exchange workbench, including workpiece flow exchange workbench (42) and the workpiece general fixture (41) for placing motor stator core (40), workpiece general fixture (41) is fixedly connected with the upper plane of workpiece flow exchange workbench (42), the bottom of workpiece flow exchange workbench (42) is equipped with guide rail groove (421) for realizing the guidance when workpiece flow exchange workbench (42) goes in and out machining station, the surface of workpiece general fixture (41) is equipped with the stop mouth (4111) for adapting with motor stator core (40), the center of stop mouth (4111) is equipped with the center through -hole (4112) that penetrates top and bottom.

2. The workpiece flow switching device of claim 1, wherein The utility model discloses a motor stator core workpiece flow exchange workbench, including workpiece flow exchange workbench (42) and the workpiece general fixture (41) for placing motor stator core (40), workpiece general fixture (41) is fixedly connected with the upper plane of workpiece flow exchange workbench (42), the bottom of workpiece flow exchange workbench (42) is equipped with guide rail groove (421) for realizing the guidance when workpiece flow exchange workbench (42) goes in and out machining station, the surface of workpiece general fixture (41) is equipped with the stop mouth (4111) for adapting with motor stator core (40), the center of stop mouth (4111) is equipped with the center through -hole (4112) that penetrates top and bottom.

3. The workpiece flow switch apparatus of claim 2, wherein, The utility model discloses a motor stator core workpiece flow exchange workbench, including workpiece flow exchange workbench (42) and the workpiece general fixture (41) for placing motor stator core (40), workpiece general fixture (41) is fixedly connected with the upper plane of workpiece flow exchange workbench (42), the bottom of workpiece flow exchange workbench (42) is equipped with guide rail groove (421) for realizing the guidance when workpiece flow exchange workbench (42) goes in and out machining station, the surface of workpiece general fixture (41) is equipped with the stop mouth (4111) for adapting with motor stator core (40), the center of stop mouth (4111) is equipped with the center through -hole (4112) that penetrates top and bottom.

4. The workpiece flow switch of claim 1, wherein, The utility model discloses a motor stator core workpiece flow exchange workbench, including workpiece flow exchange workbench (42) and the workpiece general fixture (41) for placing motor stator core (40), workpiece general fixture (41) is fixedly connected with the upper plane of workpiece flow exchange workbench (42), the bottom of workpiece flow exchange workbench (42) is equipped with guide rail groove (421) for realizing the guidance when workpiece flow exchange workbench (42) goes in and out machining station, the surface of workpiece general fixture (41) is equipped with the stop mouth (4111) for adapting with motor stator core (40), the center of stop mouth (4111) is equipped with the center through -hole (4112) that penetrates top and bottom.

5. The workpiece flow switch apparatus of claim 2 wherein, The utility model discloses a motor stator core workpiece flow exchange workbench, including workpiece flow exchange workbench (42) and the workpiece general fixture (41) for placing motor stator core (40), workpiece general fixture (41) is fixedly connected with the upper plane of workpiece flow exchange workbench (42), the bottom of workpiece flow exchange workbench (42) is equipped with guide rail groove (421) for realizing the guidance when workpiece flow exchange workbench (42) goes in and out machining station, the surface of workpiece general fixture (41) is equipped with the stop mouth (4111) for adapting with motor stator core (40), the center of stop mouth (4111) is equipped with the center through -hole (4112) that penetrates top and bottom.

6. The workpiece flow switch apparatus of claim 2 wherein, The utility model discloses a motor stator core workpiece flow exchange workbench, including workpiece flow exchange workbench (42) and the workpiece general fixture (41) for placing motor stator core (40), workpiece general fixture (41) is fixedly connected with the upper plane of workpiece flow exchange workbench (42), the bottom of workpiece flow exchange workbench (42) is equipped with guide rail groove (421) for realizing the guidance when workpiece flow exchange workbench (42) goes in and out machining station, the surface of workpiece general fixture (41) is equipped with the stop mouth (4111) for adapting with motor stator core (40), the center of stop mouth (4111) is equipped with the center through -hole (4112) that penetrates top and bottom.

7. The workpiece flow switch apparatus of claim 1 wherein, The utility model discloses a motor stator core workpiece flow exchange workbench, including workpiece flow exchange workbench (42) and the workpiece general fixture (41) for placing motor stator core (40), workpiece general fixture (41) is fixedly connected with the upper plane of workpiece flow exchange workbench (42), the bottom of workpiece flow exchange workbench (42) is equipped with guide rail groove (421) for realizing the guidance when workpiece flow exchange workbench (42) goes in and out machining station, the surface of workpiece general fixture (41) is equipped with the stop mouth (4111) for adapting with motor stator core (40), the center of stop mouth (4111) is equipped with the center through -hole (4112) that penetrates top and bottom.

8. The workpiece flow switch apparatus of claim 7, wherein, ​ 9. The workpiece flow switch apparatus of claim 1 wherein, The workpiece flow transfer exchange workbench (42) is provided with a positioning buffer puller (425) at one end face along the length direction of the guide groove (421), and is provided with a feeding and taking material handle (426) at the other end face.

10. The workpiece flow switch apparatus of claim 1 wherein, The guide groove (421) is a T-shaped guide groove with a width of the upper opening being greater than that of the lower opening.

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