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

Abstract

The invention belongs to the technical field of multi-axis motor motion structures, and relates to a multi-axis linkage symmetrical light-load motor motion structure and a workbench, the motion structure comprises a first cross beam, two ends of the first cross beam are provided with first end rotating shafts, the first end rotating shafts are rotatably connected with a first power plate, and the first power plate is in transmission connection with a first motor; the second cross beam is located above the first cross beam, second end rotating shafts are arranged at the two ends of the second cross beam, the second end rotating shafts are rotationally connected with second power plates, and the second power plates are in transmission connection with a second motor; the movement connecting base is arranged between the first cross beam and the second cross beam in a sliding mode, the first cross beam drives the movement connecting base to move along a first direction shaft, and the second cross beam drives the movement connecting base to move along 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] The present invention belongs to the technical field of multi-axis motor motion structure and workbench, and specifically relates to a multi-axis linkage symmetrical light-load motor motion structure and a workbench. Background Art

[0002] The motor slide is usually composed 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 is mounted on the Y-axis sliding module and driven by the X-axis motor or the Y-axis motor so that the slide can slide on the XY plane formed by the X-axis sliding module and the Y-axis sliding module.

[0003] However, in the existing motor motion structure, the motion load of the X-axis motor includes not only the X-axis sliding module, but also the Y-axis sliding module and the slide table installed on the X-axis sliding module, while the motion load of the Y-axis motor only includes the Y-axis sliding module and the slide table. Since the motion load of the X-axis motor is significantly higher than that of the Y-axis motor, the response speed of the X-axis motor is easily reduced; 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. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a multi-axis linkage symmetrical light-load motor motion structure and a workbench to solve the problem that in the clicking motion structure of the prior art, the motion load of the X-axis motor is significantly higher than the motion load of the Y-axis motor, which easily causes the response speed of the X-axis motor to decrease; and during long-term operation, the stability of the X-axis motor is lower than that of the Y-axis motor, which is more prone to failure.

[0005] One solution of the present invention provides a multi-axis linkage symmetrical light-load motor motion structure, comprising: a first crossbeam, a second crossbeam and a motion connection seat;

[0006] A first end rotating shaft is disposed at both ends of the first crossbeam, the first end rotating shaft is rotatably connected to a first power plate, and the first power plate is transmission-connected to a first motor;

[0007] The second crossbeam is located above the first crossbeam, and second end rotating shafts are arranged at both ends of the second crossbeam. The second end rotating shafts are rotatably connected to a second power plate, and the second power plate is drivingly connected to a second motor;

[0008] The motion connection seat is slidably arranged between the first beam and the second beam, the first motor is configured to transmit the first beam to drive the motion connection seat to move along the first direction axis, and the second motor is configured to transmit the second beam to drive the motion connection seat to move along the second direction axis, so that the first motor and the second motor can achieve light load.

[0009] In one of the schemes of the present invention, 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 beam, and the first connecting seat is slidably connected to the first beam via the first guide rail; a second guide rail is provided on the top of the second beam, and the second connecting seat is slidably connected to the second beam via the second guide rail.

[0010] In one of the schemes of the present invention, a first weight-reducing groove is arranged on the top of the first crossbeam, a weight-reducing opening is arranged on the side wall of the first weight-reducing groove, a weight-reducing blind hole is arranged on the bottom of the first weight-reducing groove; and the first guide rail is arranged at the bottom of the first weight-reducing groove.

[0011] In one of the schemes of the present invention, a second weight-reducing groove is disposed on the top of the second crossbeam, and a weight-reducing opening is disposed on the side wall of the second weight-reducing groove; and the second guide rail is disposed at the bottom of the second weight-reducing groove.

[0012] In one of the schemes of the present invention, the first connecting seat includes a first slider and a first connecting plate, the first slider is slidably matched 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 on the outer side of the first beam; the side of the first connecting plate away from the first beam is an installation plane.

[0013] In one of the schemes of the present invention, the second connecting seat includes a second slider, a second connecting plate and a bottom plate, the second slider is slidably matched 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 on the outer side of the second beam; the bottom plate is fixedly connected to the lower end of the second connecting plate, and the bottom plate is located at the bottom of the second beam, and the bottom plate is used to be fixedly connected to the first connecting seat.

[0014] In one of the schemes of the present invention, it also includes a base; the first motor is fixedly arranged on the upper surface of the base, the first power plate is slidably arranged on the upper surface of the base through 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 beam, and the first beam is driven by the two first motors.

[0015] In one of the schemes of the present invention, a boss is provided on the upper surface of the base, the second motor is fixedly provided on the boss, the second power plate is slidably provided on the boss through a slide rail, the second power plate is fixedly connected to the mover of the second motor, two second power plates are symmetrically provided on both sides of the second beam, and the second beam is driven by the two second motors.

[0016] In one of the schemes of the present invention, the first end rotating shaft includes a fixed shaft sleeve, the center of the fixed shaft sleeve has a latch hole, the first power board is provided with a latch, the latch of the first power board is plugged into the latch hole of the first end rotating shaft, so that the first end rotating shaft is rotatably connected with the first power board along the latch;

[0017] And / or, the second end rotating shaft includes a fixed sleeve, a pin hole is provided at the center of the fixed sleeve, a pin is provided on the second power plate, and the pin of the second power plate is inserted into the pin hole of the second end rotating shaft, so that the second end rotating shaft is rotatably connected with the second power plate along the pin.

[0018] In one of the schemes of the present invention, a workbench is also pointed out, including a multi-axis linkage symmetrical light-load motor motion structure as described in any one of the above-mentioned schemes.

[0019] The multi-axis linkage symmetrical light-load motor motion structure and workbench of the present invention can achieve the following technical effects:

[0020] 1. The first beam in the present invention is connected to the first motor through the first end rotating shaft, and the second beam is connected to the second motor through the second end rotating shaft, so that the operation of the first beam and the second beam is relatively independent, which effectively reduces the motion load of the first motor and the second motor, and makes the motion load of the first motor and the second motor similar, thereby improving the response speed of the motor when running; at the same time, since the motion connection seat is slidably arranged between the first beam and the second beam, when the first motor and the second motor respectively drive the first beam and the second beam to move, the motion connection seat can perform compound motion in different directions on the operating plane formed by the first direction axis and the second direction axis.

[0021] 2. The first crossbeam and the second crossbeam in the present invention are driven by the first motor or the second motor arranged in pairs, so that the thrust is more stable. Combined with the high-precision controller arranged on the first motor and the second motor, higher-precision synchronous drive is achieved.

[0022] 3. The first crossbeam and the second crossbeam in the present invention are symmetrically provided with the first end rotating shaft or the second end rotating shaft at both ends. Since each end rotating shaft can rotate independently, the mechanical interference of the crossbeams is avoided, making the operation more flexible and stable. In addition, the first crossbeam and the second crossbeam in the present invention form a cross structure or a cross-parallel structure, so that the motor motion structure has good structural symmetry, the motion support structure formed by the end rotating shaft is evenly stressed, and the operation accuracy is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 A schematic diagram showing the structure of the multi-axis linkage symmetrical light-load motor motion structure of the present invention;

[0025] Figure 2 A schematic diagram showing the structure of the first crossbeam of the present invention;

[0026] Figure 3 A schematic diagram showing the structure of the second crossbeam of the present invention;

[0027] Figure 4 A schematic diagram showing the structure of the kinematic connection seat of the present invention;

[0028] Figure 5 A schematic diagram showing the structure of the motor motion structure of the present invention being arranged on a base.

[0029] The following are the descriptions of the reference numerals:

[0030] 10-first crossbeam; 11-first end rotating shaft; 12-first power plate; 13-first guide rail; 14-first weight-reducing groove; 20-second crossbeam; 21-second end rotating shaft; 22-second power plate; 23-second guide rail; 24-second weight-reducing 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-bottom plate; 40-first motor; 50-second motor; 60-base; 61-boss; X-first direction axis; Y-second direction axis. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Please refer to Figure 1-Figure 5 , one embodiment of the present invention provides a multi-axis linkage symmetrical light-load motor motion structure, including: a first beam 10, a second beam 20 and a motion connection seat 30;

[0033] The first end rotating shaft 11 is disposed at both ends of the first cross beam 10, the first end rotating shaft 11 is rotatably connected to a first power plate 12, and the first power plate 12 is transmission-connected to a first motor 40;

[0034] The second cross beam 20 is located above the first cross beam 10, and second end shafts 21 are provided at both ends of the second cross beam 20. The second end shaft 21 is rotatably connected to a second power plate 22, and the second power plate 22 is transmission-connected to a second motor 50.

[0035] The motion connection seat 30 is slidably arranged between the first beam 10 and the second beam 20, the first motor 40 is configured to transmit the first beam 10 to drive the motion connection seat 30 to move along the first direction axis X, and the second motor 50 is configured to transmit the second beam 20 to drive the motion connection seat 30 to move along the second direction axis Y, so that the first motor 40 and the second motor 50 can achieve light load.

[0036] It can be understood that in the multi-axis linkage symmetrical light-load motor motion structure and workbench in this embodiment, the first beam 10 and the second beam 20 form a cross structure or a cross parallel structure, which can achieve the following technical effects:

[0037] 1. The first crossbeam 10 is connected to the first motor 40 through the first end rotating shaft 11, and the second crossbeam 20 is connected to the second motor 50 through the second end rotating shaft, so that the operation of the first crossbeam 10 and the second crossbeam 20 is relatively independent, which effectively reduces the motion load of the first motor 40 and the second motor 50, and makes the motion load of the first motor 40 and the second motor 50 similar, thereby reducing mutual interference between components, reducing the probability of equipment failure, and improving the stability and reliability of the equipment.

[0038] 2. Since the motion connection seat 30 is slidably arranged between the first beam 10 and the second beam 20, when the first motor 40 and the second motor 50 respectively drive the first beam 10 and the second beam 20 to move, the motion connection seat 30 can perform compound motion in different directions on the running plane formed by the first direction axis X and the second direction axis Y, and can realize complex motion trajectory and multi-axis linkage control to meet the diversified and refined processing and operation requirements in industrial production. For example, in CNC machine tool processing, the motion trajectory and motion speed of each axis can be determined according to the geometric shape and processing requirements of the workpiece through mathematical modeling and path planning algorithms.

[0039] 3. The first crossbeam 10 and the second crossbeam 20 are driven by the first motor 40 or the second motor 50 arranged in pairs, so that the thrust is more stable, and the high-precision controller arranged on the first motor 40 and the second motor 50 is combined to achieve a more accurate synchronous drive. Since the motion loads of the first motor 40 and the second motor 50 are similar and low, the response speed of the motor during operation can be improved, thereby improving the control accuracy of the entire motion mechanism, so that it performs well in industrial scenarios that require high-precision positioning and fast response, and can achieve high-speed and high-precision trajectory motion control of the end effector.

[0040] 4. The structure is relatively simple, and the connection and transmission relationship between the components are relatively clear, which is convenient for daily maintenance and servicing. It can be flexibly adjusted and optimized according to different industrial application scenarios and specific needs. For example, by changing the power of the motor, the length of the beam and other parameters, it can adapt to the requirements of different loads and motion ranges. It has strong versatility and adaptability.

[0041] Please refer to Figure 1-Figure 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 at the top of the first beam 10, and the first connecting seat 31 is slidably connected to the first beam 10 through the first guide rail 13; a second guide rail 23 is provided at the top of the second beam 20, and the second connecting seat 32 is slidably connected to the second beam 20 through the second guide rail 23.

[0042] It can be understood that in this embodiment, the following technical effects can be achieved:

[0043] 1. The first connecting seat 31 and the second connecting seat 32 are rotatably connected through an intermediate rotating shaft, wherein the first connecting seat 31 is provided with a latch or a sleeve, and the second connecting seat 32 is provided with a sleeve or a latch, and the rotation of the first connecting seat 31 and the second connecting seat 32 is achieved through the plug-in cooperation of the latch and the sleeve, thereby ensuring that the first connecting seat 31 and the second connecting seat 32 move synchronously while avoiding the deflected stress from being transmitted between the first connecting seat 31 and the second connecting seat 32.

[0044] 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 sliding, ensure that the movement of the first connecting seat 31 and the second connecting seat 32 on the guide rails is smoother and more precise, and each connecting seat slides on its own guide rail; for example, since the first beam 10 and the second beam 20 form a cross structure or a cross-parallel structure, when the first motor 40 drives the first beam 10 to move in the first direction axis X, the position of the first connecting seat 31 on the first beam 10 remains stationary, and the second connecting seat 32 slides along the second guide rail 23 on the second beam 20, or when the second motor 50 drives the second beam 20 to move in the second direction axis Y, the position of the second connecting seat 32 on the second beam 20 remains stationary, and the first connecting seat 31 slides along the first guide rail 13 on the first beam 10, which can more accurately control the movement position and ensure that the movement of the connecting seat on the guide rail is smoother and more precise.

[0045] Please refer to Figure 1 and Figure 2 In one embodiment of the present invention, a first weight-reducing groove 14 is provided at the top of the first crossbeam 10, a weight-reducing opening is provided at 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.

[0046] It can be understood that in this embodiment, the first weight-reducing groove 14 provided on the top of the first beam 10 and the weight-reducing openings on the side wall can effectively reduce the material usage of the first beam 10, thereby reducing the weight of the first beam 10, and also achieve light load for the motor, thereby improving the response speed of the motor when running.

[0047] Furthermore, in this embodiment, wire grooves are provided on the outer side and the bottom of the first beam 10. The wire grooves extend to both ends of the first beam 10. By burying and fixing steel wires in the wire grooves, the tensile properties of the steel wires are utilized, and the steel wires are tightened by tightening nuts and other components, thereby providing a fixed-direction force to the first beam 10 to offset the deformation caused by the beam's own weight.

[0048] Please refer to Figure 1 and Figure 3 In one embodiment of the present invention, a second weight-reducing groove 24 is provided at the top of the second crossbeam 20 , and a weight-reducing opening is provided at 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 .

[0049] It can be understood that in this embodiment, the second weight-reducing groove 24 provided on the top of the second beam 20 and the weight-reducing openings on the side wall can effectively reduce the material usage of the second beam 20, thereby reducing the weight of the second beam 20, and also achieve light load for the motor, thereby improving the response speed of the motor when running.

[0050] Furthermore, in the present embodiment, wire grooves are provided on the outer side and the bottom of the second beam 20. The wire grooves extend to both ends of the second beam 20. By burying and fixing steel wires in the wire grooves, the tensile properties of the steel wires are utilized, and the steel wires are tightened by tightening nuts and other components, thereby providing the second beam 20 with a force in a fixed direction to offset the deformation caused by the beam's own weight.

[0051] 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 matched 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 on the outer side of the first beam 10; the side of the first connecting plate 312 away from the first beam 10 is an installation plane.

[0052] It can be understood that in this embodiment, the first slider 311 and the first connecting plate 312 form a 7-shaped structure, and the mounting plane extending to the outside of the first beam 10 is used to assemble 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.

[0053] 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 bottom plate 323, the second slider 321 is slidably matched 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 on the outer side of the second beam 20; the bottom plate 323 is fixedly connected to the lower end of the second connecting plate 322, and the bottom plate 323 is located at the bottom of the second beam 20, and the bottom plate 323 is used to be fixedly connected to the first connecting seat 31.

[0054] It can be understood that in this embodiment, the second slider 321, the second connecting plate 322 and the bottom plate 323 form a C-shaped structure, the second slider 321 is slidably matched with the second guide rail 23 on the second beam 20, the second connecting plate 322 and the bottom plate 323 are suspended on the outside of the second beam 20, and are used to reduce the resistance of the second connecting seat 32 when sliding along the second guide rail 23, and at the same time, the bottom plate 323 is rotatably connected with the first slider 311 of the first connecting seat 31.

[0055] Please refer to Figure 5 In one embodiment of the present invention, it also includes a base 60; the first motor 40 is fixedly arranged on the upper surface of the base 60, the first power plate 12 is slidably arranged on the upper surface of the base 60 through a slide rail, and the first power plate 12 is fixedly connected to the mover of the first motor 40; the two first power plates 12 are symmetrically arranged on both sides of the first beam 10, and the first beam 10 is driven by the two first motors 40.

[0056] It can be understood that 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 field force. The mover can be directly connected to the load, transfer the power generated by the motor to the load, and drive the load to move or work.

[0057] In this embodiment, the first motors 40 are symmetrically arranged on both sides of the base 60, the first beam 10 is located between the two first motors 40, and a slide rail parallel to the first direction axis X is also arranged between the first motor 40 and the first beam 10. When the first power plate 12 is used for transmission connection, the first power plate 12 also slides with the slide rail to limit the sliding direction of the first power plate 12;

[0058] Furthermore, the first beam 10 is driven by the first motors 40 arranged in pairs, so that the thrust is more stable. Combined with the high-precision controller arranged on the first motors 40, a higher-precision synchronous drive of the first beam 10 is achieved.

[0059] 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 disposed on the boss 61, the second power plate 22 is slidably disposed on the boss 61 through a slide rail, the second power plate 22 is fixedly connected to the mover of the second motor 50, two second power plates 22 are symmetrically disposed on both sides of the second beam 20, and the second beam 20 is driven by the two second motors 50.

[0060] It can be understood that 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 beam 20 and the first beam 10 to avoid collision between the first beam 10 and the second beam 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 sliding stability;

[0061] In this embodiment, the power plate is connected to the mover of the second motor 50, and the second beam 20 is driven by the second motor 50 arranged in pairs, so that the thrust is more stable. Combined with the high-precision controller set on the second motor 50, a higher-precision synchronous drive of the second beam 20 is achieved.

[0062] In one of the scenarios of the embodiment, since the motion loads of the first motor 40 and the second motor 50 are similar and relatively low, the response speed of the motor during operation can be improved, thereby improving the control accuracy of the entire motion mechanism, enabling it to perform well in industrial scenarios that require high-precision positioning and rapid response. For example, in the design and application of high-precision industrial robots, high-speed and high-precision trajectory motion control of the end effector can be achieved.

[0063] In one embodiment of the present invention, the first end rotating shaft 11 includes a fixed sleeve, the center of the fixed sleeve has a latch hole, the first power plate 12 is provided with a latch, the latch of the first power plate 12 is plugged into the latch hole of the first end rotating shaft 11, so that the first end rotating shaft 11 is rotatably connected with the first power plate 12 along the latch;

[0064] And / or, the second end rotating shaft 21 includes a fixed shaft sleeve, a pin hole is provided at the center of the fixed shaft sleeve, a pin is provided on the second power plate 22, and the pin of the second power plate 22 is inserted into the pin hole of the second end rotating shaft 21, so that the second end rotating shaft 21 is rotatably connected with the second power plate 22 along the pin.

[0065] According to the previous embodiments, the first end rotating shaft 11 or the second end rotating shaft 21 is symmetrically arranged at both ends of the first cross beam 10 and the second cross beam 20. Since each end rotating shaft can rotate independently, the mechanical interference of the cross beams is avoided, making the operation more flexible and stable. The first cross beam 10 and the second cross beam 20 form a cross structure or a cross parallel structure, so that the motor motion structure has good structural symmetry, the motion support structure formed by the end rotating shaft is evenly stressed, and the operation accuracy is higher.

[0066] It can be understood that 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 latch connection. The connection structure is simple and easy to maintain.

[0067] In one application scenario of the present embodiment, the outer side surface of the fixed sleeve is further provided with a plurality of fixing screw holes, in which a top ball screw is provided, and the top of the top ball screw abuts against the latch, and the latch is constrained and fixed by a plurality of top ball screws. By providing a top ball nut with reasonable specifications, the offset position of the latch can be constrained within a reasonable range during the transmission operation of the end shaft and the power plate;

[0068] In addition, due to the presence of a spring in the ball screw, the transmission structure between the fixed sleeve and the first power plate 12 or the second power plate 22 has a certain elasticity, so that the transmission structure is more flexible when running, and when overshoot occurs, the transmission structure can be allowed to have a certain overshoot. This improves the overload resistance of the structure and makes the system more stable and durable.

[0069] In one of the embodiments of the present invention, a workbench is provided, comprising a multi-axis linkage symmetrical light-load motor motion structure as described in any one of the above-mentioned embodiments.

[0070] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A multi-axis linkage symmetrical light-load motor motion structure, characterized in that: include: A first crossbeam, a second crossbeam and a kinematic connection seat; A first end rotating shaft is disposed at both ends of the first crossbeam, the first end rotating shaft is rotatably connected to a first power plate, and the first power plate is transmission-connected to a first motor; The second crossbeam is located above the first crossbeam, and second end rotating shafts are arranged at both ends of the second crossbeam. The second end rotating shafts are rotatably connected to a second power plate, and the second power plate is drivingly connected to a second motor; The motion connection seat is slidably arranged between the first beam and the second beam, the first motor is configured to transmit the first beam to drive the motion connection seat to move along the first direction axis, and the second motor is configured to transmit the second beam to drive the motion connection seat to move along the second direction axis, so that the first motor and the second motor can achieve light load.

2. The multi-axis linkage symmetrical light-load motor motion structure according to claim 1, characterized in that: The motion connection seat comprises a first connection seat and a second connection seat connected to each other; A first guide rail is disposed 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 disposed on the top of the second cross beam, and the second connecting seat is slidably connected to the second cross beam via the second guide rail.

3. The multi-axis linkage symmetrical light-load motor motion structure according to claim 2, characterized in that: 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 arranged at the bottom of the first weight reduction groove.

4. The multi-axis linkage symmetrical light-load motor motion structure according to claim 2, characterized in that: 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 arranged at the bottom of the second weight reduction groove.

5. The multi-axis linkage symmetrical light-load motor motion structure according to claim 4, characterized in that: The first connecting seat includes a first sliding block and a first connecting plate. The first sliding block is slidably matched with the first guide rail; The first connecting plate is fixedly connected to the side surface of the first sliding block, and the first connecting plate is located on the outer side of the first crossbeam; the side surface of the first connecting plate away from the first crossbeam is a mounting plane.

6. The multi-axis linkage symmetrical light-load motor motion structure according to claim 2, characterized in that: The second connecting seat includes a second sliding block, a second connecting plate and a bottom plate. The second slider is slidably matched with the second guide rail; The upper end of the second connecting plate is fixedly connected to the side of the second sliding block, and the second connecting plate is located on the outer side of the second crossbeam; The bottom plate is fixedly connected to the lower end of the second connecting plate, and the bottom plate is located at the bottom of the second crossbeam. The bottom plate is used to be fixedly connected to the first connecting seat.

7. The multi-axis linkage symmetrical light-load motor motion structure according to any one of claims 1 to 6, characterized in that: It also includes a base; the first motor is fixedly arranged on the upper surface of the base, the first power plate is slidably arranged on the upper surface of the base through 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 beam, and the first beam is driven by the two first motors.

8. The multi-axis linkage symmetrical light-load motor motion structure according to claim 7, characterized in that: A boss is provided on the upper surface of the base, the second motor is fixedly provided on the boss, the second power plate is slidably provided on the boss through a slide rail, the second power plate is fixedly connected to the mover of the second motor, two second power plates are symmetrically provided on both sides of the second beam, and the second beam is driven by the two second motors.

9. The multi-axis linkage symmetrical light-load motor motion structure according to any one of claims 1 to 6, characterized in that: The first end rotating shaft comprises a fixed shaft sleeve, the center of the fixed shaft sleeve has a latch hole, the first power board is provided with a latch, the latch of the first power board is plugged into the latch hole of the first end rotating shaft, so that the first end rotating shaft is rotatably connected with the first power board along the latch; And / or, the second end rotating shaft includes a fixed sleeve, a pin hole is provided at the center of the fixed sleeve, a pin is provided on the second power plate, and the pin of the second power plate is inserted into the pin hole of the second end rotating shaft, so that the second end rotating shaft is rotatably connected with the second power plate along the pin.

10. A workbench, characterized in that: It comprises a multi-axis linkage symmetrical light-load motor motion structure as described in any one of claims 1-9.

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