Variable moment arm material handling mechanism and material variable moment arm carousel

Abstract

The utility model provides a kind of variable moment arm mechanism and material variable moment carousel handling tool, it is related to product testing equipment technical field, including variable moment module and multiple take and place material arm;Variable moment module's variable moment shaft is rotatably installed in frame, its outer circumferential surface is spaced apart and is equipped with multiple positioning slots along the axial direction, the spacing between every two adjacent positioning slots when variable moment shaft is at two rotation angles respectively N1 and N2 and N1 ≠N2;Slide rail axial both ends are fixedly connected to frame;Mounting seat is slidably arranged on slide rail, and each mounting seat lower end is respectively fixedly connected with one take and place material arm;Each mounting seat is equipped with follow-up lug, and follow-up lug is one-to-one embedded in each positioning slot;Rotary drive component drives variable moment shaft to rotate to adjust the spacing between every two adjacent mounting seat.The utility model can quickly switch different spacing requirements in the process of taking and placing material, greatly improve the flexibility and production efficiency of material handling and processing in automatic production line.

Description

Technical Field

[0001] This utility model relates to the field of product testing equipment technology, and in particular to a variable torque arm mechanism and a material variable torque turntable handling fixture. Background Technology

[0002] With the rapid development of the electronics industry, flexible printed circuit boards (FPCs) are crucial components, making functional testing during the production process paramount. Rigorous functional testing must be conducted before FPC boards are assembled at the factory to ensure product quality. In existing technologies, testing facilities typically use unloading trays and finished product shipping trays to hold and store FPC boards for testing. The specific process is as follows: the FPC board is first placed in the unloading tray; after functional testing, it needs to be transferred from the unloading tray to the finished product shipping tray for storage and subsequent shipping operations.

[0003] However, because the number of cells on the unloading tray and the finished product shipping tray is the same but the spacing between the cells is different, the process of transferring FPC boards from the unloading tray to the finished product shipping tray currently mainly relies on manual tray-turning operations. This is not only time-consuming but also requires a large investment of manpower and resources, increasing production and time costs. Utility Model Content

[0004] The purpose of this invention is to provide a variable torque arm mechanism and a variable torque turntable material handling fixture to alleviate the above-mentioned technical problems existing in the prior art.

[0005] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:

[0006] In a first aspect, this utility model provides a torque-changing material arm mechanism, including a torque-changing module and multiple material picking and placing arms;

[0007] The torque converter module includes a frame, a torque converter shaft, a slide rail, a rotary drive assembly, and at least two mounting seats. The torque converter shaft is rotatably mounted on the frame. Multiple positioning grooves are axially spaced on the outer circumferential surface of the torque converter shaft. The distance between any two adjacent positioning grooves is N1 when the torque converter shaft is at one rotation angle, and N2 when the torque converter shaft is at another rotation angle; therefore, N1 ≠ N2. The two ends of the slide rail are fixedly connected to the frame. The mounting seats are slidably mounted on the slide rail, and each mounting seat has a material handling arm fixedly connected to its lower end. Each mounting seat has a follower protrusion, which is embedded in each of the positioning grooves. The rotary drive assembly is fixed to the frame and driven by the torque converter shaft, driving the torque converter shaft to rotate, causing each follower protrusion to slide along its corresponding positioning groove, thereby adjusting the distance between any two adjacent mounting seats.

[0008] In an optional embodiment, the rotary drive assembly includes a drive motor, a first transmission wheel, a second transmission wheel, and a transmission belt; the drive motor is arranged vertically at a distance from the torque converter shaft, the first transmission wheel is fixed to the output shaft of the drive motor, the second transmission wheel is fixed to one end of the torque converter shaft, and the transmission belt surrounds and drives the first transmission wheel and the second transmission wheel.

[0009] In an optional embodiment, the loading and unloading arm includes a fixing frame, a lifting assembly, and a suction nozzle assembly;

[0010] The fixing frame is fixedly connected to the corresponding mounting base;

[0011] The lifting assembly includes a lifting drive unit and a lifting actuator unit. The lifting drive unit is fixedly installed on the fixed frame and is connected to the lifting actuator unit in a transmission manner.

[0012] The suction nozzle assembly includes an air pipe connector and a suction nozzle connected to the air pipe connector via an air passage. The suction nozzle is directly or indirectly fixed to the lifting actuator, and the suction end of the suction nozzle is located below the lifting actuator with its opening facing downward.

[0013] In an optional embodiment, the lifting assembly is a cylinder piston rod assembly; the lifting drive unit is a vertically arranged cylinder, and the lifting actuator is a piston rod connected to the cylinder.

[0014] In an optional embodiment, the pick-and-place arm further includes a suction nozzle rotation adjustment assembly, which includes a rotation drive and a rotation execution part. The rotation drive is fixedly installed on the lifting execution part, and the top of the suction nozzle is fixedly connected to the lower end surface of the rotation execution part.

[0015] In an optional embodiment, the nozzle rotation adjustment assembly is a rotary motor assembly, the rotation drive unit includes a rotary motor, and the rotation execution unit is a motor shaft.

[0016] In an optional embodiment, the mounting base and the positioning slot are each provided with at least six.

[0017] Secondly, this utility model provides a material torque-changing turntable handling fixture, including a mounting plate, a horizontal drive assembly mounted on the mounting plate, and a torque-changing material arm mechanism as described in any of the foregoing embodiments; the frame is fixedly connected to the action execution part of the horizontal drive assembly.

[0018] In an optional embodiment, the mounting plate has mutually perpendicular X and Y directions in a horizontal plane, and the horizontal drive assembly includes an X-direction drive assembly and a Y-direction drive assembly.

[0019] The X-axis drive component is mounted on the mounting plate, the Y-axis drive component is mounted on the action execution part of the X-axis drive component, and the frame is fixedly connected to the action execution part of the Y-axis drive component; or, the Y-axis drive component is mounted on the mounting plate, the X-axis drive component is mounted on the action execution part of the Y-axis drive component, and the frame is fixedly connected to the action execution part of the X-axis drive component.

[0020] In an optional implementation, the X-axis drive assembly and the Y-axis drive assembly are respectively electric slide assemblies.

[0021] This utility model can achieve at least the following beneficial effects:

[0022] This embodiment adjusts the rotation angle of the torque-changing shaft by rotating the drive assembly, which can change the spacing between adjacent positioning slots, thereby achieving precise adjustment of the spacing between mounting bases. This design allows the pick-and-place arm 200 to adapt to material slots with different spacings, improving the versatility and flexibility of the equipment. It can quickly switch between different spacing requirements (e.g., from N1 of the pick-and-place tray to N2 of the place-out tray) during the pick-and-place process. Especially in FPC board testing and shipping scenarios, it can transfer materials from the unloading tray (picking tray) to the finished product shipping tray (place-out tray) and supports other types of "place-out tray" operations such as defective product trays, significantly improving production efficiency.

[0023] The core advantage of this embodiment lies in its ability to achieve efficient spacing adjustment through a simple mechanical structure, which greatly improves the flexibility and production efficiency of material handling and processing in automated production lines. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 An isometric view of the overall structure of the torque-changing boom mechanism provided in this embodiment of the utility model;

[0026] Figure 2 for Figure 1 Enlarged view of the local structure of region A in the middle;

[0027] Figure 3 A schematic diagram of the overall structure of the torque converter module in the torque converter arm mechanism provided in this embodiment of the utility model;

[0028] Figure 4An isometric view of the overall structure of the material torque converter turntable handling fixture provided in this embodiment of the utility model;

[0029] Figure 5 This is a schematic diagram illustrating the cooperation relationship between the material torque converter turntable handling fixture and the material conveying fixture provided in an embodiment of this utility model.

[0030] Icons: 100-Torque Variable Module; 200-Pick-and-Put Arm; 300-Material Conveying Fixture; 1-Frame; 2-Torque Variable Shaft; 21-Positioning Slot; 3-Slide Rail; 4-Mounting Base; 41-Following Protrusion; 5-Rotary Drive Assembly; 51-Drive Motor; 511-First Transmission Wheel; 512-Second Transmission Wheel; 513-Transmission Belt; 61-Fixed Frame; 62-Lifting Assembly; 63-Nose Assembly; 631-Air Pipe Connector; 632-Nose; 64-Nose Rotation Adjustment Assembly; 7-Mounting Plate; 8-X-Directional Drive Assembly; 9-Y-Directional Drive Assembly. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] It should be noted that similar labels and letters in the accompanying drawings indicate similar items. Therefore, once an item is defined in one accompanying drawing, it does not need to be further defined and explained in subsequent accompanying drawings.

[0034] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] Furthermore, the terms "horizontal" and "vertical" do not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0038] First aspect

[0039] This embodiment provides a variable torque boom mechanism, referring to... Figures 1 to 4 The torque converter arm mechanism includes a torque converter module 100 and multiple loading / unloading arms 200. The torque converter module 100 includes a frame 1, a torque converter shaft 2, a slide rail 3, a rotary drive assembly 5, and at least two mounting bases 4. The torque converter shaft 2 is rotatably mounted on the frame 1. Multiple positioning grooves 21 are axially spaced on the outer circumferential surface of the torque converter shaft 2. The distance between any two adjacent positioning grooves 21 when the torque converter shaft 2 is at one rotation angle is N1, and the distance between any two adjacent positioning grooves 21 when the torque converter shaft 2 is at another rotation angle is N2. N1≠N2; the two ends of the slide rail 3 are fixedly connected to the frame 1 in the axial direction; the mounting base 4 is slidably disposed on the slide rail 3, and a material picking arm 200 is fixedly connected to the lower end of each mounting base 4. Each mounting base 4 is provided with a follower protrusion 41, and the follower protrusion 41 is embedded in each positioning groove 21 in a corresponding manner; the rotary drive assembly 5 is fixed to the frame 1 and is connected to the torque converter shaft 2 for driving the torque converter shaft 2 to rotate, so that each follower protrusion 41 slides along the corresponding positioning groove 21, thereby adjusting the distance between each pair of adjacent mounting bases 4.

[0040] When using, refer to Figure 5Used in conjunction with the material conveying fixture 300, the rotation angle of the rotary drive component 5 is adjusted according to the distance N1 between adjacent acupoints on the material-collecting tray, causing each follower protrusion 41 to slide along the corresponding positioning groove 21, thereby adjusting the distance between each pair of adjacent mounting seats 4 to N1. The material-collecting and dispensing structure at the lower end of the picking and dispensing arm 200 is used to grab or suck up the material. Then, the rotation angle of the rotary drive component 5 is adjusted according to the distance N2 between adjacent acupoints on the dispensing tray, causing each follower protrusion 41 to slide along the corresponding positioning groove 21, thereby adjusting the distance between each pair of adjacent mounting seats 4 to N2, completing the dispensing operation. When the above operation process is applied to a testing mechanism, in the operation process of transferring FPC boards from the unloading tray to the finished product shipping tray for storage and subsequent shipping operations, the above-mentioned "picking tray" is the "unloading tray", and the above-mentioned "dispensing tray" is the "finished product shipping tray". In the shipping process, other "dispensing trays" such as defective product trays can also be designed.

[0041] It should be noted that in this embodiment, the torque-changing arm mechanism can be moved above the corresponding material tray according to the different positions of the picking tray and the discharging tray, or the material conveying fixture 300 can move the picking tray and the discharging tray below the moving torque-changing arm mechanism respectively.

[0042] In this embodiment, the rotation angle of the torque-changing shaft 2 can be adjusted by the rotary drive component 5, thereby changing the spacing between adjacent positioning slots 21 and achieving precise adjustment of the spacing between mounting bases 4. This design allows the pick-and-place arm 200 to adapt to material slots with different spacings, and can quickly switch between different spacing requirements (e.g., from N1 of the pick-and-place tray to N2 of the place-and-place tray) during the pick-and-place process. Especially in FPC board testing and shipping scenarios, materials can be transferred from the unloading tray (picking tray) to the finished product shipping tray (place-and-place tray), and other types of "place-and-place tray" operations such as defective product trays are supported, which significantly improves production efficiency.

[0043] The core advantage of this embodiment lies in its ability to achieve efficient spacing adjustment through a simple mechanical structure, which greatly improves the flexibility and production efficiency of material handling and processing in automated production lines.

[0044] In an optional embodiment of this invention, the rotary drive assembly 5 includes a drive motor 51, a first transmission wheel 511, a second transmission wheel 512, and a transmission belt 513. The drive motor 51 and the torque converter shaft 2 are arranged vertically at intervals. The first transmission wheel 511 is fixed to the output shaft of the drive motor 51, the second transmission wheel 512 is fixed to one end of the torque converter shaft 2, and the transmission belt 513 surrounds and drives the first transmission wheel 511 and the second transmission wheel 512. In this optional embodiment, the drive motor 51 and the torque converter shaft 2 are arranged vertically at intervals, which can effectively utilize the internal space of the equipment and reduce the overall size of the rotary drive assembly 5 and the torque converter shaft 2 in the lateral space. This design is particularly suitable for applications with limited space. At the same time, power transmission is achieved through the first transmission wheel 511, the second transmission wheel 512, and the transmission belt 513, which has high transmission efficiency and stability. Compared to direct connection or other complex transmission mechanisms, this design is relatively simple, and the connection relationship between the components (drive motor 51, first transmission wheel 511, second transmission wheel 512 and transmission belt 513) is clear, which facilitates installation, debugging and later maintenance.

[0045] In an optional embodiment of this example, the material handling arm 200 includes a fixed frame 61, a lifting assembly 62, and a suction nozzle assembly 63; the fixed frame 61 is fixedly connected to the corresponding mounting base 4; the lifting assembly 62 includes a lifting drive unit and a lifting actuator unit, the lifting drive unit is fixedly installed on the fixed frame 61 and is connected to the lifting actuator unit in a transmission manner; the suction nozzle assembly 63 includes an air pipe connector 631 and a suction nozzle 632 that is connected to the air pipe connector 631 through an air passage, the suction nozzle 632 is directly or indirectly fixed to the lifting actuator unit, and the suction end of the suction nozzle 632 is located below the lifting actuator unit with its opening facing downward. In this optional embodiment, the material handling arm 200 includes a fixed frame 61, a lifting assembly 62, and a suction nozzle assembly 63. The lifting assembly 62 achieves precise height adjustment through a lifting drive and a lifting actuator. This design allows the suction nozzle 632 to flexibly approach or move away from the target object, thereby adapting to different material handling needs. The suction nozzle assembly 63 realizes the suction function of the suction nozzle 632 through an air pipe connector 631 and an air passage. The suction end of the suction nozzle 632 is located below the lifting actuator and the opening faces downward. This layout ensures efficient adsorption and release of materials, and is especially suitable for handling planar objects, while reducing damage to materials during handling.

[0046] In an optional embodiment of this invention, the lifting assembly 62 is a cylinder piston rod assembly; the lifting drive unit is a vertically arranged cylinder, and the lifting actuator is a piston rod connected to the cylinder. In other optional embodiments of this invention, the lifting assembly 62 may also be an electric push rod assembly, a hydraulic cylinder piston rod assembly, or a motor ball screw assembly, etc.

[0047] In an optional embodiment of this example, the pick-and-place arm 200 further includes a suction nozzle rotation adjustment assembly 64. The suction nozzle rotation adjustment assembly 64 includes a rotation drive unit and a rotation execution unit. The rotation drive unit is fixedly mounted on the lifting execution unit, and the top of the suction nozzle 632 is fixedly connected to the lower end surface of the rotation execution unit. This optional embodiment allows the suction nozzle 632 to be rotated and adjusted in the horizontal plane via the rotation drive unit and the rotation execution unit. This allows the suction nozzle to rotate according to the angle of the material on the pick-up tray and the angle at which the material needs to be placed on the place-out tray, thus meeting the needs of more complex pick-and-place scenarios.

[0048] In an optional embodiment of this example, the nozzle rotation adjustment assembly 64 is a rotary motor assembly. The rotation drive unit includes a rotary motor, and the rotation execution unit is a motor shaft. By using a rotary motor as the drive source and the motor shaft as the execution component, precise control of the nozzle rotation angle can be achieved. The nozzle rotation adjustment assembly 64 can also be a rotary cylinder assembly or a rotary hydraulic cylinder assembly.

[0049] In an optional embodiment of this example, the mounting base 4 and the positioning slot 21 are each provided with at least six, so as to realize the synchronous picking and releasing of at least six materials at a time, thereby improving production efficiency.

[0050] Second aspect

[0051] This embodiment also provides a material variable torque turntable handling fixture, including a mounting plate 7, a horizontal drive assembly mounted on the mounting plate 7, and a variable torque arm mechanism provided in any of the optional embodiments of the first aspect; the frame 1 is fixedly connected to the action execution part of the horizontal drive assembly, which is used to control the movement of the variable torque arm mechanism between the picking plate and the unloading plate.

[0052] In an optional embodiment of this example, the mounting plate 7 has mutually perpendicular X and Y directions in the horizontal plane, and the horizontal drive assembly includes an X-direction drive assembly 8 and a Y-direction drive assembly 9. In some optional embodiments, the X-direction drive assembly 8 is mounted on the mounting plate 7, the Y-direction drive assembly 9 is mounted on the actuation part of the X-direction drive assembly 8, and the frame 1 is fixedly connected to the actuation part of the Y-direction drive assembly 9. In other optional embodiments, the Y-direction drive assembly 9 is mounted on the mounting plate 7, the X-direction drive assembly 8 is mounted on the actuation part of the Y-direction drive assembly 9, and the frame 1 is fixedly connected to the actuation part of the X-direction drive assembly 8.

[0053] In an optional embodiment of this example, the X-axis drive assembly 8 and the Y-axis drive assembly 9 are electric slide table assemblies. In other optional embodiments of this example, the X-axis drive assembly 8 and the Y-axis drive assembly 9 may also be cylinder piston rod assemblies, electric push rod assemblies, hydraulic cylinder piston rod assemblies, or motor ball screw pairs, etc.

[0054] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to mutually. The above embodiments in this specification are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A variable torque boom mechanism, characterized in that: Includes a torque converter module and multiple pick-and-place arms; The torque converter module includes: frame; A torque converter shaft is rotatably mounted on the frame. Multiple positioning grooves are axially spaced on the outer circumferential surface of the torque converter shaft. When the torque converter shaft is at one rotation angle, the distance between each two adjacent positioning grooves is N1, and when the torque converter shaft is at another rotation angle, the distance between each two adjacent positioning grooves is N2. Then, N1≠N2. The slide rail is fixedly connected to the frame at both ends along the axial direction. At least two mounting seats are slidably disposed on the slide rail, and each mounting seat is fixedly connected to a material picking and placing arm at its lower end; each mounting seat is provided with a follower protrusion, and the follower protrusion is embedded in each of the positioning grooves in a corresponding manner; And a rotary drive assembly, fixed to the frame and connected to the torque converter shaft, for driving the torque converter shaft to rotate, so that each of the follower protrusions slides along the corresponding positioning groove, thereby adjusting the spacing between each pair of adjacent mounting seats.

2. The variable torque feeder mechanism according to claim 1, characterized in that: The rotary drive assembly includes a drive motor, a first transmission wheel, a second transmission wheel, and a transmission belt; The drive motor and the torque converter shaft are arranged vertically at intervals. The first transmission wheel is fixed to the output shaft of the drive motor, and the second transmission wheel is fixed to one end of the torque converter shaft. The transmission belt surrounds and drives the first transmission wheel and the second transmission wheel.

3. The variable torque feeder mechanism according to claim 1, characterized in that: The loading and unloading arm includes a fixed frame, a lifting assembly, and a suction nozzle assembly; The fixing frame is fixedly connected to the corresponding mounting base; The lifting assembly includes a lifting drive unit and a lifting actuator unit. The lifting drive unit is fixedly installed on the fixed frame and is connected to the lifting actuator unit in a transmission manner. The suction nozzle assembly includes an air pipe connector and a suction nozzle connected to the air pipe connector via an air passage. The suction nozzle is directly or indirectly fixed to the lifting actuator, and the suction end of the suction nozzle is located below the lifting actuator with its opening facing downward.

4. The variable torque feeder mechanism according to claim 3, characterized in that: The lifting assembly is a cylinder piston rod assembly; the lifting drive unit is a vertically arranged cylinder, and the lifting actuator is a piston rod connected to the cylinder.

5. The variable torque feeder mechanism according to claim 3, characterized in that: The material handling arm also includes a suction nozzle rotation adjustment assembly, which includes a rotation drive unit and a rotation execution unit. The rotation drive unit is fixedly installed on the lifting execution unit, and the top of the suction nozzle is fixedly connected to the lower end surface of the rotation execution unit.

6. The variable torque feeder mechanism according to claim 5, characterized in that: The nozzle rotation adjustment assembly is a rotary motor assembly, the rotation drive unit includes a rotary motor, and the rotation execution unit is a motor shaft.

7. The variable torque boom mechanism according to claim 1, characterized in that: The mounting base and the positioning slot are each provided with at least six.

8. A material handling fixture for a variable torque rotary table, characterized in that: It includes a mounting plate, a horizontal drive assembly mounted on the mounting plate, and a torque-changing arm mechanism as described in any one of claims 1-7; the frame is fixedly connected to the actuation unit of the horizontal drive assembly.

9. The material handling fixture for a variable torque turntable according to claim 8, characterized in that: The mounting plate has mutually perpendicular X and Y directions in a horizontal plane, and the horizontal drive assembly includes an X-direction drive assembly and a Y-direction drive assembly. The X-axis drive component is mounted on the mounting plate, the Y-axis drive component is mounted on the action execution part of the X-axis drive component, and the frame is fixedly connected to the action execution part of the Y-axis drive component; or, the Y-axis drive component is mounted on the mounting plate, the X-axis drive component is mounted on the action execution part of the Y-axis drive component, and the frame is fixedly connected to the action execution part of the X-axis drive component.

10. The material handling fixture for a variable torque turntable according to claim 9, characterized in that: The X-axis drive assembly and the Y-axis drive assembly are respectively electric slide table assemblies.

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