Multi-axis linkage symmetrical light-load motor motion structure and workbench

Abstract

The utility model belongs to the technical field of multi-shaft motor motion structures, and relates to a multi-shaft linkage symmetrical light load motor motion structure and a workbench. The first end rotating shaft is rotationally connected with a first power plate and is in transmission connection with a first motor; the second cross beam is positioned above the first cross beam to form a cross structure or a cross parallel structure; second end rotating shafts are arranged at the two ends of the second cross beam; the second end rotating shaft is rotationally connected with a second power plate and is in transmission connection with a second motor; the first cross beam and the second cross beam are oppositely arranged, the movement connecting seat is arranged between the first cross beam and the second cross beam in a sliding mode, and the first cross beam and the second cross beam respectively drive the movement connecting seat to move along a first direction shaft or a second direction shaft. The motion load of the first motor and the second motor is effectively reduced, and the response speed of the motors during operation is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of multi-axis motor motion structure and worktable, specifically relating to a multi-axis linkage symmetrical light-load motor motion structure and worktable. Background Technology

[0002] A motor slide table typically consists of a base, an X-axis sliding module, an X-axis motor, a Y-axis sliding module, and a Y-axis motor. The X-axis sliding module is slidably mounted on the guide rail of the base and slides along the X-axis direction. The Y-axis sliding module is slidably mounted on the guide rail of the X-axis sliding module and slides along the Y-axis direction. The slide table is mounted on the Y-axis sliding module and is driven by either the X-axis motor or the Y-axis motor, allowing the slide table to slide on the XY plane formed by the X-axis sliding module and the Y-axis sliding module.

[0003] However, in existing motor motion structures, the motion load of the X-axis motor includes not only the X-axis sliding module, but also the Y-axis sliding module and slide table mounted on the X-axis sliding module, while the motion load of the Y-axis motor only includes the Y-axis sliding module and slide table. Since the motion load of the X-axis motor is significantly higher than that of the Y-axis motor, it is easy to cause a decrease in the response speed of the X-axis motor; and during long-term operation, the stability of the X-axis motor is lower than that of the Y-axis motor, and it is more prone to failure. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a multi-axis linkage symmetrical light-load motor motion structure and a worktable to solve the problem that in the existing motor motion structure, the motion load of the X-axis motor is significantly higher than that of the Y-axis motor, which easily causes the response speed of the X-axis motor to decrease; and in long-term operation, the stability of the X-axis motor is lower than that of the Y-axis motor, and it is more prone to failure.

[0005] One embodiment of this utility model provides a multi-axis linkage symmetrical light-load motor motion structure, including: a first crossbeam, a second crossbeam, and a motion connecting seat;

[0006] The first crossbeam has a first end shaft at both ends, and the first end shaft is rotatably connected to a first power plate, which is connected to a first motor.

[0007] The second crossbeam is located above the first crossbeam. The two ends of the second crossbeam are provided with second end shafts. The second end shafts are rotatably connected to a second power plate, and the second power plate is connected to a second motor drive.

[0008] The motion connecting seat is slidably disposed between the first crossbeam and the second crossbeam. The first motor is configured to drive the first crossbeam to move the motion connecting seat along a first direction axis, and the second motor is configured to drive the second crossbeam to move the motion connecting seat along a second direction axis, so that the first motor and the second motor can achieve light load.

[0009] The first crossbeam and the second crossbeam form a cross structure or a cross-shaped parallel structure.

[0010] In one embodiment of this utility model, the motion connecting seat includes a first connecting seat and a second connecting seat connected to each other; a first guide rail is provided on the top of the first crossbeam, and the first connecting seat is slidably connected to the first crossbeam through the first guide rail; a second guide rail is provided on the top of the second crossbeam, and the second connecting seat is slidably connected to the second crossbeam through the second guide rail.

[0011] In one embodiment of this utility model, a first weight-reducing groove is provided on the top of the first crossbeam, a weight-reducing opening is provided on the side wall of the first weight-reducing groove, and a weight-reducing blind hole is provided at the bottom of the first weight-reducing groove; the first guide rail is provided at the bottom of the first weight-reducing groove.

[0012] In one embodiment of this utility model, a second weight-reducing groove is provided on the top of the second crossbeam, and a weight-reducing opening is provided on the side wall of the second weight-reducing groove; the second guide rail is provided at the bottom of the second weight-reducing groove.

[0013] In one embodiment of this utility model, the first connecting seat includes a first slider and a first connecting plate. The first slider is slidably engaged with the first guide rail. The first connecting plate is fixedly connected to the side of the first slider, and the first connecting plate is located outside the first crossbeam. The side of the first connecting plate away from the first crossbeam is a mounting plane.

[0014] In one embodiment of this utility model, the second connecting seat includes a second slider, a second connecting plate, and a base plate. The second slider is slidably engaged with the second guide rail. The upper end of the second connecting plate is fixedly connected to the side of the second slider, and the second connecting plate is located outside the second crossbeam. The base plate is fixedly connected to the lower end of the second connecting plate, and the base plate is located at the bottom of the second crossbeam. The base plate is used to fixally connect with the first connecting seat.

[0015] In one embodiment of this utility model, a base is also included; the first motor is fixedly mounted on the upper surface of the base, and the first power plate is slidably mounted on the upper surface of the base via a slide rail, and the first power plate is fixedly connected to the mover of the first motor; two first power plates are symmetrically arranged on both sides of the first crossbeam, and the first crossbeam is driven by the two first motors.

[0016] In one embodiment of this utility model, a boss is provided on the upper surface of the base, the second motor is fixedly mounted on the boss, the second power plate is slidably mounted on the boss via a slide rail, the second power plate is fixedly connected to the mover of the second motor, the two second power plates are symmetrically arranged on both sides of the second crossbeam, and the second crossbeam is driven by the two second motors.

[0017] In one embodiment of this utility model, the first end shaft includes a fixed bushing with a pin hole at its center. A pin is provided on the first power plate, and the pin of the first power plate is inserted into the pin hole of the first end shaft so that the first end shaft is rotatably connected to the first power plate along the pin.

[0018] And / or, the second end shaft includes a fixed bushing with a pin hole at its center, and a pin is provided on the second power plate. The pin of the second power plate is inserted into the pin hole of the second end shaft so that the second end shaft is rotatably connected to the second power plate along the pin.

[0019] In one embodiment of this utility model, a workbench is also provided, comprising a multi-axis linkage symmetrical light-load motor motion structure as described in any of the above embodiments.

[0020] The multi-axis linkage symmetrical light-load motor motion structure and worktable of this utility model can achieve the following technical effects:

[0021] 1. In this utility model, the first crossbeam is connected to the first motor via a first end rotating shaft, and the second crossbeam is connected to the second motor via a second end rotating head. This makes the operation of the first and second crossbeams relatively independent, effectively reducing the motion load of the first and second motors and making their motion loads similar, thus improving the response speed of the motors during operation. At the same time, since the motion connecting seat is slidably disposed between the first and second crossbeams, when the first and second motors drive the first and second crossbeams to move respectively, the motion connecting seat can perform compound movements in different directions on the running plane formed by the first and second direction axes.

[0022] 2. In this utility model, the first crossbeam and the second crossbeam are both driven by a pair of first motors or second motors, which makes the thrust more stable. Combined with the high-precision controllers set on the first motor and the second motor, higher precision synchronous drive is achieved.

[0023] 3. In this utility model, the first and second crossbeams are symmetrically provided with a first end shaft or a second end shaft at both ends. Since each end shaft can rotate independently, mechanical interference of the crossbeams is avoided, making the operation more flexible and stable. In addition, the first and second crossbeams in this utility model form a cross structure or a cross-parallel structure, which makes the motor motion structure have good structural symmetry. The motion support structure formed by the end shafts is evenly stressed and has higher running accuracy. Attached Figure Description

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

[0025] Figure 1 A schematic diagram illustrating the multi-axis linkage symmetrical light-load motor motion structure of this utility model;

[0026] Figure 2 This is a schematic diagram showing the structure of the first crossbeam of this utility model;

[0027] Figure 3 This is a schematic diagram showing the structure of the second crossbeam of this utility model;

[0028] Figure 4 This is a schematic diagram showing the structure of the motion connector of this utility model;

[0029] Figure 5 This is a schematic diagram showing the structure of the motor motion structure of this utility model mounted on the base.

[0030] The annotations in the attached figures are explained as follows:

[0031] 10-First crossbeam; 11-First end shaft; 12-First power plate; 13-First guide rail; 14-First weight reduction groove; 20-Second crossbeam; 21-Second end shaft; 22-Second power plate; 23-Second guide rail; 24-Second weight reduction groove; 30-Motion connecting seat; 31-First connecting seat; 311-First slider; 312-First connecting plate; 32-Second connecting seat; 321-Second slider; 322-Second connecting seat; 323-Base plate; 40-First motor; 50-Second motor; 60-Base; 61-Boss; X-First direction axis; Y-Second direction axis. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please refer to Figures 1-5 One embodiment of this utility model provides a multi-axis linkage symmetrical light-load motor motion structure, including: a first crossbeam 10, a second crossbeam 20 and a motion connecting seat 30;

[0034] The first crossbeam 10 has a first end shaft 11 at both ends, and the first end shaft 11 is rotatably connected to a first power plate 12, which is connected to the first motor 40 in a transmission connection.

[0035] The second crossbeam 20 is located above the first crossbeam 10. The two ends of the second crossbeam 20 are provided with second end shafts 21. The second end shafts 21 are rotatably connected to a second power plate 22. The second power plate 22 is connected to the second motor 50 in a transmission connection.

[0036] The motion connector 30 is slidably disposed between the first crossbeam 10 and the second crossbeam 20. The first motor 40 is configured to drive the first crossbeam 10 to move the motion connector 30 along the first direction axis X. The second motor 50 is configured to drive the second crossbeam 20 to move the motion connector 30 along the second direction axis Y, so that the first motor 40 and the second motor 50 can achieve light load.

[0037] Understandably, in the multi-axis linkage symmetrical light-load motor motion structure and worktable of this embodiment, the first crossbeam 10 and the second crossbeam 20 form a cross structure or a cross-parallel structure, which can achieve the following technical effects:

[0038] 1. The first crossbeam 10 is connected to the first motor 40 via the first end shaft 11, and the second crossbeam 20 is connected to the second motor 50 via the second end shaft. This makes the operation of the first crossbeam 10 and the second crossbeam 20 relatively independent, effectively reducing the motion load of the first motor 40 and the second motor 50, and making the motion load of the first motor 40 and the second motor 50 similar. This reduces mutual interference between components, lowers the probability of equipment failure, and improves the stability and reliability of the equipment.

[0039] 2. Since the motion connecting seat 30 is slidably disposed between the first crossbeam 10 and the second crossbeam 20, when the first motor 40 and the second motor 50 drive the first crossbeam 10 and the second crossbeam 20 to move respectively, the motion connecting seat 30 can perform compound movements in different directions on the running plane formed by the first direction axis X and the second direction axis Y. This enables complex motion trajectories and multi-axis linkage control, meeting the diverse and refined processing and operation needs in industrial production. For example, in CNC machine tool processing, the motion trajectory and speed of each axis can be determined by mathematical modeling and path planning algorithms according to the workpiece geometry and processing requirements.

[0040] 3. Both the first crossbeam 10 and the second crossbeam 20 are driven by a pair of first motors 40 or second motors 50, resulting in smoother thrust. Combined with high-precision controllers mounted on the first motors 40 and 50, higher precision synchronous drive is achieved. Because the motion loads of the first motors 40 and 50 are similar and relatively low, the response speed during motor operation is improved, thereby enhancing the control precision of the entire motion mechanism. This allows it to perform exceptionally well in industrial scenarios requiring high-precision positioning and rapid response, enabling high-speed, high-precision trajectory motion control of the end effector.

[0041] 4. The structure is relatively simple, and the connection and transmission relationship between the components is relatively clear, which facilitates daily maintenance and upkeep. It can be flexibly adjusted and optimized according to different industrial application scenarios and specific needs. For example, by changing parameters such as the power of the motor and the length of the crossbeam, it can adapt to the requirements of different loads and motion ranges, and has strong versatility and adaptability.

[0042] Please refer to Figures 1-4 In one embodiment of the present invention, the motion connecting seat 30 includes a first connecting seat 31 and a second connecting seat 32 connected to each other; a first guide rail 13 is provided on the top of the first crossbeam 10, and the first connecting seat 31 is slidably connected to the first crossbeam 10 through the first guide rail 13; a second guide rail 23 is provided on the top of the second crossbeam 20, and the second connecting seat 32 is slidably connected to the second crossbeam 20 through the second guide rail 23.

[0043] Understandably, the following technical effects can be achieved in this embodiment:

[0044] 1. The first connecting seat 31 and the second connecting seat 32 are rotatably connected by an intermediate rotating shaft. The first connecting seat 31 is provided with a pin or bushing, and the second connecting seat 32 is provided with a bushing or pin. The first connecting seat 31 and the second connecting seat 32 are rotated by the insertion and engagement of the pin and the bushing. This ensures that the first connecting seat 31 and the second connecting seat 32 move synchronously while avoiding the transmission of deflection stress between the first connecting seat 31 and the second connecting seat 32.

[0045] 2. Both the first guide rail 13 and the second guide rail 23 are high-precision guide rails, which can reduce friction and vibration during the sliding process, ensuring that the movement of the first connecting seat 31 and the second connecting seat 32 on the guide rails is more stable and precise, and that each connecting seat slides on its respective guide rail. For example, since the first crossbeam 10 and the second crossbeam 20 form a cross-shaped or parallel cross structure, when the first motor 40 drives the first crossbeam 10 to move along the first direction axis X, the first connecting seat 31 remains stationary on the first crossbeam 10, and the second connecting seat 32 slides along the second guide rail 23 on the second crossbeam 20. Alternatively, when the second motor 50 drives the second crossbeam 20 to move along the second direction axis Y, the second connecting seat 32 remains stationary on the second crossbeam 20, and the first connecting seat 31 slides along the first guide rail 13 on the first crossbeam 10. This allows for more precise control of the movement position, ensuring that the movement of the connecting seat on the guide rails is more stable and precise.

[0046] Please refer to Figure 1 and Figure 2 In one embodiment of the present invention, a first weight-reducing groove 14 is provided on the top of the first crossbeam 10, a weight-reducing opening is provided on the side wall of the first weight-reducing groove 14, and a weight-reducing blind hole is provided at the bottom of the first weight-reducing groove 14; the first guide rail 13 is provided at the bottom of the first weight-reducing groove 14.

[0047] Understandably, in this embodiment, the first weight-reducing groove 14 provided on the top of the first crossbeam 10 and the weight-reducing opening on the side wall can effectively reduce the amount of material used in the first crossbeam 10, thereby reducing the weight of the first crossbeam 10, and also achieving a light load on the motor, improving the response speed of the motor during operation.

[0048] Furthermore, in this embodiment, the outer side and bottom of the first crossbeam 10 are provided with wire grooves, which extend to both ends of the first crossbeam 10. By embedding and fixing steel wires in the wire grooves, the tensile properties of the steel wires are utilized. The steel wires are tightened by tightening nuts and other components, thereby providing a force in a fixed direction to the first crossbeam 10 to counteract the deformation caused by the crossbeam's own weight.

[0049] Please refer to Figure 1 and Figure 3 In one embodiment of the present invention, a second weight-reducing groove 24 is provided on the top of the second crossbeam 20, and a weight-reducing opening is provided on the side wall of the second weight-reducing groove 24; the second guide rail 23 is provided at the bottom of the second weight-reducing groove 24.

[0050] Understandably, in this embodiment, the second weight-reducing groove 24 provided on the top of the second crossbeam 20 and the weight-reducing opening on the side wall can effectively reduce the amount of material used in the second crossbeam 20, thereby reducing the weight of the second crossbeam 20, and also achieving a light load on the motor and improving the response speed of the motor during operation.

[0051] Furthermore, in this embodiment, the outer side and bottom of the second crossbeam 20 are provided with wire grooves, which extend to both ends of the second crossbeam 20. By embedding and fixing steel wires in the wire grooves, the tensile properties of the steel wires are utilized. The steel wires are tightened by tightening nuts and other components, thereby providing a force in a fixed direction to the second crossbeam 20 to counteract the deformation caused by the crossbeam's own weight.

[0052] Please refer to Figure 4 In one embodiment of the present invention, the first connecting seat 31 includes a first slider 311 and a first connecting plate 312. The first slider 311 is slidably engaged with the first guide rail 13. The first connecting plate 312 is fixedly connected to the side of the first slider 311, and the first connecting plate 312 is located outside the first crossbeam 10. The side of the first connecting plate 312 away from the first crossbeam 10 is a mounting plane.

[0053] Understandably, in this embodiment, the first slider 311 and the first connecting plate 312 form a 7-shaped structure, extending to the mounting plane outside the first crossbeam 10 for assembling the end effector, and one or more end effectors can be assembled. When assembling multiple end effectors, they are arranged in parallel and symmetrically on the first connecting seat 31.

[0054] Please refer to Figure 4 In one embodiment of the present invention, the second connecting seat 32 includes a second slider 321, a second connecting plate 322, and a base plate 323. The second slider 321 is slidably engaged with the second guide rail 23. The upper end of the second connecting plate 322 is fixedly connected to the side of the second slider 321, and the second connecting plate 322 is located outside the second crossbeam 20. The base plate 323 is fixedly connected to the lower end of the second connecting plate 322, and the base plate 323 is located at the bottom of the second crossbeam 20. The base plate 323 is used to be fixedly connected to the first connecting seat 31.

[0055] Understandably, in this embodiment, the second slider 321, the second connecting plate 322, and the base plate 323 form a C-shaped structure. The second slider 321 is slidably engaged with the second guide rail 23 on the second crossbeam 20. The second connecting plate 322 and the base plate 323 are suspended on the outside of the second crossbeam 20 to reduce the resistance when the second connecting seat 32 slides along the second guide rail 23. At the same time, the base plate 323 is rotatably inserted into the first slider 311 of the first connecting seat 31.

[0056] Please refer to Figure 5 In one embodiment of the present invention, a base 60 is further included; the first motor 40 is fixedly disposed on the upper surface of the base 60, and the first power plate 12 is slidably disposed on the upper surface of the base 60 through a slide rail, and the first power plate 12 is fixedly connected to the moving part of the first motor 40; the two first power plates 12 are symmetrically disposed on both sides of the first crossbeam 10, and the first crossbeam 10 is driven by the two first motors 40.

[0057] Understandably, in an electric motor, the mover is the direct carrier that converts electrical energy into mechanical energy. When current passes through the mover winding, a magnetic field is generated, and the mover moves under the action of the magnetic force. The mover can be directly connected to the load, transmitting the power generated by the motor to the load and driving the load to move or work.

[0058] In this embodiment, the first motor 40 is symmetrically arranged on both sides of the base 60, and the first crossbeam 10 is located between the two first motors 40. A slide rail parallel to the first direction axis X is also provided between the first motor 40 and the first crossbeam 10. When the transmission connection is made through the first power plate 12, the first power plate 12 also slides with the slide rail to limit the sliding direction of the first power plate 12.

[0059] Furthermore, the first crossbeam 10 is driven by a pair of first motors 40, which makes the thrust more stable. Combined with the high-precision controller set on the first motor 40, a higher precision synchronous drive of the first crossbeam 10 is achieved.

[0060] Please refer to Figure 5 In one embodiment of the present invention, a boss 61 is provided on the upper surface of the base 60, the second motor 50 is fixedly mounted on the boss 61, the second power plate 22 is slidably mounted on the boss 61 through a slide rail, the second power plate 22 is fixedly connected to the mover of the second motor 50, the two second power plates 22 are symmetrically arranged on both sides of the second crossbeam 20, and the second crossbeam 20 is driven by the two second motors 50.

[0061] Understandably, in this embodiment, the boss 61 is used to raise the installation height of the second motor 50 and the second power plate 22, so that a height difference is formed between the second crossbeam 20 and the first crossbeam 10, avoiding collision between the first crossbeam 10 and the second crossbeam 20; and a slide rail parallel to the second direction axis Y is provided on the boss 61, and the second power plate 22 slides with the slide rail, which can reduce mechanical errors and improve the stability of sliding.

[0062] In this embodiment, the power plate is connected to the mover of the second motor 50, and the second crossbeam 20 is driven by the paired second motors 50, making the thrust more stable. Combined with the high-precision controller set on the second motor 50, higher precision synchronous drive of the second crossbeam 20 is achieved.

[0063] In one scenario of the embodiment, since the motion loads of the first motor 40 and the second motor 50 are similar and low, the response speed of the motors during operation can be improved, thereby improving the control accuracy of the entire motion mechanism, making it perform well in industrial scenarios that require high-precision positioning and fast response, such as in the design and application of high-precision industrial robots, which can realize high-speed and high-precision trajectory motion control of the end effector.

[0064] In one embodiment of the present invention, the first end shaft 11 includes a fixed bushing with a pin hole at the center. The first power plate 12 is provided with a pin, and the pin of the first power plate 12 is inserted into the pin hole of the first end shaft 11 so that the first end shaft 11 is rotatably connected to the first power plate 12 along the pin.

[0065] And / or, the second end shaft 21 includes a fixed bushing with a pin hole at the center, and the second power plate 22 is provided with a pin. The pin of the second power plate 22 is inserted into the pin hole of the second end shaft 21 so that the second end shaft 21 is rotatably connected to the second power plate 22 along the pin.

[0066] As can be seen from the previous embodiments, the first crossbeam 10 and the second crossbeam 20 are symmetrically provided with a first end shaft 11 or a second end shaft 21 at both ends. Since each end shaft can rotate independently, mechanical interference of the crossbeams is avoided, making the operation more flexible and stable. Furthermore, the first crossbeam 10 and the second crossbeam 20 form a cross structure or a cross-parallel structure, which makes the motor motion structure have good structural symmetry. The motion support structure formed by the end shafts is subjected to uniform force, resulting in higher running accuracy.

[0067] Understandably, in this embodiment, the first end shaft 11 is rotatably connected to the first power plate 12 and the second end shaft 21 is rotatably connected to the second power plate 22 by means of a pin connection. The connection structure is simple and easy to maintain.

[0068] In one application scenario of this embodiment, the outer side of the fixed bushing is also provided with several fixing screw holes, and a top ball screw is provided in the fixing screw hole. The top of the top ball screw abuts against the pin. The pin is constrained and fixed by multiple top ball screws. By setting a top ball nut with reasonable specifications, the offset position of the pin can be constrained within a reasonable range during the transmission operation of the end shaft and the power plate.

[0069] Furthermore, the presence of a spring in the ball screw provides a degree of elasticity to the transmission structure between the fixed bushing and the first power plate 12 or the second power plate 22, making the transmission structure more flexible during operation. This allows for some overshooting of the transmission structure in the event of motion overshoot, thereby improving the structure's overload resistance and making the system more stable and durable.

[0070] In one embodiment of this utility model, a workbench is also provided, including a multi-axis linkage symmetrical light-load motor motion structure as described in any of the above embodiments.

[0071] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A multi-axis linkage symmetrical light-load motor movement structure, characterized in that, The utility model relates to a kind of cross beam, including: First cross beam, second cross beam and motion connecting seat; First cross beam both ends are provided with first end head pivot, first end head pivot is rotatably connected with first power plate, and first power plate is drivingly connected with first motor; Second cross beam is located above first cross beam, and second cross beam both ends are provided with second end head pivot, second end head pivot is rotatably connected with second power plate, and second power plate is drivingly connected with second motor; Motion connecting seat is slidably arranged between first cross beam and second cross beam, first motor is configured to drive first cross beam to drive motion connecting seat to move along first direction axis, and second motor is configured to drive second cross beam to drive motion connecting seat to move along second direction axis; Wherein, first cross beam and second cross beam form cross structure or cross parallel structure.

2. The multi-axis linkable symmetric light-load motor movement structure according to claim 1, wherein, Motion connecting seat includes first connecting seat and second connecting seat connected with each other; First cross beam top is provided with first guide rail, and first connecting seat is slidably connected with first cross beam by first guide rail; Second cross beam top is provided with second guide rail, and second connecting seat is slidably connected with second cross beam by second guide rail.

3. The multi-axis linkable symmetric light-load motor movement structure according to claim 2, wherein, First cross beam top is provided with first lightening groove, and the sidewall of first lightening groove is provided with lightening opening; First guide rail is arranged at the bottom of first lightening groove.

4. The multi-axis linkable symmetric light-load motor movement structure according to claim 2, wherein, Second cross beam top is provided with second lightening groove, and the sidewall of second lightening groove is provided with lightening opening; Second guide rail is arranged at the bottom of second lightening groove.

5. The multi-axis linkable symmetric light-load motor movement structure according to claim 4, wherein, First connecting seat includes first slider and first connecting plate, First slider is slidably connected with first guide rail; First connecting plate is fixedly connected with the side surface of first slider, and first connecting plate is located outside first cross beam;The side surface of first connecting plate away from first cross beam is mounting plane.

6. The multi-axis linkable symmetric light-load motor movement structure according to claim 2, wherein, Second connecting seat includes second slider, second connecting plate and bottom plate, Second slider is slidably connected with second guide rail; The upper end of second connecting plate is fixedly connected with the side surface of second slider, and second connecting plate is located outside second cross beam; Bottom plate is fixedly connected with the lower end of second connecting plate, and bottom plate is located at the bottom of second cross beam, and bottom plate is used to be fixedly connected with first connecting seat.

7. The multi-axis linkages symmetric light-load motor movement structure according to any one of claims 1-6, characterized in that, It further includes base;First motor is fixedly arranged on the upper surface of base, and first power plate is slidably arranged on the upper surface of base by sliding rail, and the mover of first motor is fixedly connected with first power plate;Two first power plates are symmetrically arranged on the two sides of first cross beam, and first cross beam is driven by two first motors.

8. The multi-axis linkable symmetric light-load motor movement structure according to claim 7, wherein, The upper surface of base is provided with boss, and second motor is fixedly arranged on the boss, and second power plate is slidably arranged on the boss by sliding rail, and the mover of second motor is fixedly connected with second power plate;Two second power plates are symmetrically arranged on the two sides of second cross beam, and second cross beam is driven by two second motors.

9. The multi-axis linkages symmetric light-load motor motion structure according to any one of claims 1-6, wherein, The first end rotating shaft comprises a fixed shaft sleeve, a bolt hole is formed in the center of the fixed shaft sleeve, a bolt is arranged on the first power plate, and the bolt of the first power plate is inserted into the bolt hole of the first end rotating shaft, so that the first end rotating shaft is rotationally connected to the first power plate along the bolt. And / or, the second end rotating shaft comprises a fixed shaft sleeve, a bolt hole is formed in the center of the fixed shaft sleeve, a bolt is arranged on the second power plate, and the bolt of the second power plate is inserted into the bolt hole of the second end rotating shaft, so that the second end rotating shaft is rotationally connected to the second power plate along the bolt.

10. A workbench characterized by, The multi-axis linkage symmetrical light-load motor movement structure comprises a plurality of power plates, a plurality of end rotating shafts, a plurality of connecting rods, a plurality of connecting shafts, a plurality of connecting plates, a plurality of connecting rods, a plurality of connecting shafts, a plurality of connecting plates, a plurality of connecting rods, a plurality of connecting shafts, a plurality of connecting plates, a plurality of connecting rods, a plurality of connecting shafts, a plurality of connecting plates, a plurality of connecting rods, a plurality of connecting shafts, a plurality of connecting plates, a plurality of connecting rods, a plurality of connecting shafts, a plurality of connecting plates, a plurality of connecting rods, a plurality of connecting shafts, a plurality of connecting plates, a plurality of connecting rods, a plurality of connecting shafts, a plurality of connecting plates, a plurality of connecting rods, a plurality of connecting shafts, a plurality of connecting plates, a plurality of connecting rods, a plurality of connecting shafts, a plurality of connecting plates, a plurality of connecting rods, a plurality of connecting shafts, a plurality of connecting plates, a plurality of connecting rods, a plurality of connecting shafts, a plurality of connecting plates, a plurality of connecting rods, a plurality of connecting shafts, a plurality

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