Robot walking sliding table capable of moving in multiple directions

Abstract

The invention provides a robot walking sliding table capable of moving in multiple directions, and relates to the field of robot sliding tables, the robot walking sliding table comprises a base, one end and the middle of the top of the base are each provided with a first bearing seat, a first lead screw is installed through the two first bearing seats, and a first lead screw nut is installed on the outer side of the first lead screw; a first connecting seat is fixedly connected to the outer side of the first lead screw nut, a first movable frame is fixedly connected to the top of the first connecting seat, two second bearing seats are fixedly mounted at the top of the first movable frame, and a second lead screw is mounted through the two second bearing seats; according to the large-span high-precision translation sliding table, the second movable frame is arranged, the length of the first lead screw and the length of the second lead screw which are short can be overlapped, large-span translation of the robot is achieved, large-span translation of the robot is completed under the condition that the length of the lead screws is not increased, and therefore the requirement of the robot for the large-span high-precision translation sliding table in the actual production activity is met.

Description

Technical Field

[0001] The invention belongs to the technical field of robot slides, in particular to a robot walking slide capable of realizing multi-directional movement. Background Art

[0002] A slide is a mechanical device that is commonly used to achieve precise linear motion in areas such as machine tools, automation equipment, and robots. It consists of one or more sliding elements that can move freely on fixed guide rails. The main function of a slide is to support a workpiece or tool so that it can be accurately positioned and moved in one or more directions. The slide can achieve a large range of movement for the robot, thereby increasing the robot's working range.

[0003] Common robots include lead screw slides driven by lead screws and lead screw nuts and rack slides driven by gear racks. Compared with rack slides, the movement accuracy of lead screw slides can reach millimeter level, which is much greater than the movement accuracy of rack slides. At the same time, compared with rack slides, lead screw slides make less noise when working. However, when the lead screw used in a lead screw slide is too long, the middle part of the lead screw is prone to jumping during rotation, which will cause the accuracy and stability of the lead screw to decrease over time, and also reduce the service life of the lead screw. This limits the use of lead screw slides in robot applications that meet large spans and high precision requirements.

[0004] In summary, the present invention provides a robot walking slide that can achieve multi-directional movement to solve the above problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a robot walking slide that can realize multi-directional movement, which is achieved by the following specific technical means:

[0006] A robot walking slide capable of realizing multi-directional movement comprises a base, one end of the top of the base and the middle thereof are respectively provided with a first bearing seat, and a first lead screw is installed through two of the first bearing seats, a first lead screw nut is installed on the outer side of the first lead screw, a first connecting seat is fixedly connected to the outer side of the first lead screw nut, a first movable frame is fixedly connected to the top of the first connecting seat, two second bearing seats are fixedly installed on the top of the first movable frame, and a second lead screw is installed through two of the second bearing seats, a second lead screw nut is installed on the outer side of the second lead screw, and a first connecting seat is fixedly connected to the outer side of the second lead screw nut A second connecting seat, the top of the second connecting seat is fixedly connected to a second movable frame, the other end of the top of the base is installed with a third bearing seat, and a spline shaft is installed through the third bearing seat, the end of the spline shaft away from the third bearing seat is connected to the first screw through a coupling transmission, the outer side of the spline shaft is meshingly connected with a spline sleeve, the outer side of the spline sleeve is rotatably connected to the third connecting seat, and the third connecting seat is fixedly connected to the first movable frame, the outer side of the spline sleeve is also fixedly connected to the first gear, one end of the second screw is fixedly connected to the second gear, and the first gear and the second gear are meshingly connected.

[0007] As a preferred technical solution of the present invention, fourth bearing seats are installed at both ends of the top of the second movable frame, and a third screw is installed through the two fourth bearing seats, a third screw nut is installed on the third screw, a fourth connecting seat is fixedly connected to the outer side of the third screw nut, and a mounting platform is fixedly connected to the top of the fourth connecting seat.

[0008] As a preferred technical solution of the present invention, two first guide rails are installed on both sides of the first lead screw at the top of the base, two groups of first guide rail sliders are arranged at the bottom of the first movable frame, and the two groups of first guide rail sliders are respectively slidably connected to the two first guide rails.

[0009] As a preferred technical solution of the present invention, two second guide rails are installed on both sides of the second lead screw at the top of the first movable frame, two second guide rail sliders are provided at the bottom of the second movable frame, and the two second guide rail sliders are respectively slidably connected to the two second guide rails.

[0010] As a preferred technical solution of the present invention, two third guide rails are respectively arranged on both sides of the third lead screw at the top of the second movable frame, two third guide rail sliders are respectively arranged at the bottom of the mounting platform, and the two third guide rail sliders are respectively slidably connected to the two third guide rails.

[0011] As a preferred technical solution of the present invention, a first motor is fixedly installed on one side of the second movable frame, and the output end of the first motor is transmission-connected to the second screw, and a second motor is fixedly installed on one side of the mounting platform, and the output end of the second motor is transmission-connected to the third screw.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The present invention sets up a second movable frame, which can overlap the lengths of the two shorter first lead screws and the second lead screw to achieve a larger span translation of the robot. The large span translation of the robot can be completed without increasing the length of the lead screw, thereby meeting the robot's demand for a large span and high precision translation slide in actual production activities. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the present invention as a whole;

[0015] Figure 2 It is a three-dimensional schematic diagram of the base of the present invention;

[0016] Figure 3 is a three-dimensional schematic diagram of the first movable frame of the present invention;

[0017] Figure 4 It is a three-dimensional schematic diagram of the second movable frame of the present invention.

[0018] In the figure:

[0019] 1. Base; 2. First bearing seat; 3. First lead screw; 4. First lead screw nut; 5. First connecting seat; 6. First movable frame; 7. Second bearing seat; 8. Second lead screw; 9. Second lead screw nut; 10. Second connecting seat; 11. Second movable frame; 12. Third bearing seat; 13. Spline shaft; 14. Spline sleeve; 15. Third connecting seat; 16. First gear; 17. Second gear; 18. Fourth bearing seat; 19. Third lead screw; 20. Third lead screw nut; 21. Fourth connecting seat; 22. Mounting platform; 23. First guide rail; 24. First guide rail slider; 25. Second guide rail; 26. Second guide rail slider; 27. Third guide rail; 28. Third guide rail slider; 29. ​​First motor; 30. Second motor. DETAILED DESCRIPTION

[0020] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] like Figure 1-4As shown, the present invention provides a robot walking slide that can realize multi-directional movement, including a base 1, a first bearing seat 2 is respectively arranged at one end and the middle of the top of the base 1, and a first screw 3 is installed through two first bearing seats 2, a first screw nut 4 is installed on the outer side of the first screw 3, a first connecting seat 5 is fixedly connected to the outer side of the first screw nut 4, a first movable frame 6 is fixedly connected to the top of the first connecting seat 5, two second bearing seats 7 are fixedly installed on the top of the first movable frame 6, and a second screw 8 is installed through the two second bearing seats 7, a second screw nut 9 is installed on the outer side of the second screw 8, and a second connecting The second movable frame 11 is fixedly connected to the top of the second connecting seat 10, and a third bearing seat 12 is installed on the other end of the top of the base 1, and a spline shaft 13 is installed through the third bearing seat 12, and the end of the spline shaft 13 away from the third bearing seat 12 is connected to the first lead screw 3 through a coupling transmission, and the outer side of the spline shaft 13 is meshingly connected with a spline sleeve 14, and the outer side of the spline sleeve 14 is rotatably connected with the third connecting seat 15, and the third connecting seat 15 is fixedly connected to the first movable frame 6, and the outer side of the spline sleeve 14 is also fixedly connected with a first gear 16, and one end of the second lead screw 8 is fixedly connected with a second gear 17, and the first gear 16 and the second gear 17 are meshingly connected.

[0022] When the second lead screw 8 rotates, the second lead screw nut 9 installed on its surface will drive the second movable frame 11 fixedly connected to it to move. At the same time, the rotation of the second lead screw 8 will drive the second gear 17 to rotate. The rotation of the second gear 17 will drive the first gear 16 meshing with it to rotate. The first gear 16 drives the spline sleeve 14 fixedly connected to it to rotate. The spline sleeve 14 drives the spline shaft 13 meshing with it to rotate. The first lead screw 3 is driven to rotate through the spline shaft 13. When the first lead screw 3 rotates, the first lead screw nut 4 installed on its surface will drive the first movable frame 6 to move. That is to say, when the second lead screw 8 rotates to drive the second movable frame 11 to move, the first lead screw 3 will rotate synchronously to drive the first movable frame 6 to move. Since the second movable frame 11 is installed on the first movable frame 6, the moving strokes of the first movable frame 6 and the second movable frame 11 will be superimposed, so that the moving span of the second movable frame 11 is greatly improved.

[0023] It should be noted that, as the optimal technical solution, in the present invention, the length, diameter, pitch and other parameters of the first lead screw 3 and the second lead screw 8 are the same. Such an arrangement can make the lengths of the first lead screw 3 and the second lead screw 8 close to the limit without causing increased vibration, so that the moving span of the second movable frame 11 reaches the maximum.

[0024] Among them, fourth bearing seats 18 are installed at both ends of the top of the second movable frame 11, and a third screw 19 is installed through two fourth bearing seats 18. The third screw 19 is installed with a third screw nut 20. The outer side of the third screw nut 20 is fixedly connected with a fourth connecting seat 21, and the top of the fourth connecting seat 21 is fixedly connected with a mounting platform 22.

[0025] The mounting platform 22 is used to mount the robot. The second movable frame 11 drives the robot to complete a large-span lateral movement, and the third lead screw 19 and the third lead screw nut 20 drive the robot to perform a small-span longitudinal movement, thereby further increasing the robot's working range.

[0026] Among them, two first guide rails 23 are installed on both sides of the first lead screw 3 at the top of the base 1, and two groups of first guide rail sliders 24 are arranged at the bottom of the first movable frame 6, and the two groups of first guide rail sliders 24 are slidably connected to the two first guide rails 23 respectively.

[0027] The first guide rail 23 is arranged in parallel with the first lead screw 3 , which can effectively improve the stability of the movement of the first movable frame 6 and improve the bearing capacity of the first movable frame 6 .

[0028] Among them, two second guide rails 25 are installed on both sides of the second lead screw 8 at the top of the first movable frame 6, and two second guide rail sliders 26 are arranged at the bottom of the second movable frame 11, and the two second guide rail sliders 26 are slidably connected to the two second guide rails 25 respectively.

[0029] The second guide rail 25 is arranged in parallel with the second lead screw 8 , which can effectively improve the movement stability of the second movable frame 11 and improve the bearing capacity of the second movable frame 11 .

[0030] Among them, two third guide rails 27 are respectively arranged on both sides of the third lead screw 19 at the top of the second movable frame 11, and two third guide rail sliders 28 are arranged at the bottom of the installation platform 22, and the two third guide rail sliders 28 are respectively slidably connected to the two third guide rails 27.

[0031] The third guide rail 27 is arranged in parallel with the third lead screw 19 , which can effectively improve the movement stability of the installation platform 22 and improve the bearing capacity of the installation platform 22 .

[0032] Among them, a first motor 29 is fixedly installed on one side of the second movable frame 11, and the output end of the first motor 29 is transmission-connected to the second screw 8, and a second motor 30 is fixedly installed on one side of the mounting platform 22, and the output end of the second motor 30 is transmission-connected to the third screw 19.

[0033] The second lead screw 8 is driven to rotate by the first motor 29, thereby realizing the lateral translation of the robot, and the third lead screw 19 is driven to rotate by the second motor 30, thereby realizing the longitudinal translation of the robot.

[0034] Specific working principle:

[0035] The second motor 30 drives the second lead screw 8 to rotate. When the second lead screw 8 rotates, the second lead screw nut 9 installed on its surface drives the second movable frame 11 fixedly connected to it to move. At the same time, the rotation of the second lead screw 8 drives the second gear 17 to rotate. The rotation of the second gear 17 drives the first gear 16 meshed with it to rotate. The first gear 16 drives the spline sleeve 14 fixedly connected to it to rotate. The spline sleeve 14 drives the spline shaft 13 meshed with it to rotate. The first lead screw 3 is driven to rotate through the spline shaft 13. When the first lead screw 3 rotates, the first lead screw nut installed on its surface 4 will drive the first movable frame 6 to move, that is, when the second lead screw 8 rotates to drive the second movable frame 11 to move, the first lead screw 3 will rotate synchronously to drive the first movable frame 6 to move, and because the second movable frame 11 is installed on the first movable frame 6, the moving strokes of the first movable frame 6 and the second movable frame 11 will be superimposed, so that the moving span of the second movable frame 11 is greatly improved, and the second lead screw 8 is driven to rotate by the first motor 29 to realize the lateral translation of the robot, and the third lead screw 19 is driven to rotate by the second motor 30 to realize the longitudinal translation of the robot.

[0036] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A robot walking slide capable of moving in multiple directions, characterized in that: The invention comprises a base (1), wherein one end and the middle of the top of the base (1) are respectively provided with a first bearing seat (2), and a first lead screw (3) is installed through two of the first bearing seats (2), a first lead screw nut (4) is installed on the outer side of the first lead screw (3), a first connecting seat (5) is fixedly connected to the outer side of the first lead screw nut (4), a first movable frame (6) is fixedly connected to the top of the first connecting seat (5), two second bearing seats (7) are fixedly installed on the top of the first movable frame (6), and a second lead screw (8) is installed through the two second bearing seats (7), a second lead screw nut (9) is installed on the outer side of the second lead screw (8), a second connecting seat (10) is fixedly connected to the outer side of the second lead screw nut (9), and the top of the second connecting seat (10) is fixedly connected to the outer side of the second lead screw nut (9). A second movable frame (11) is fixedly connected, a third bearing seat (12) is installed at the other end of the top of the base (1), and a spline shaft (13) is installed through the third bearing seat (12), one end of the spline shaft (13) away from the third bearing seat (12) is connected to the first lead screw (3) through a coupling, the outer side of the spline shaft (13) is meshingly connected with a spline sleeve (14), the outer side of the spline sleeve (14) is rotatably connected with a third connecting seat (15), and the third connecting seat (15) is fixedly connected to the first movable frame (6), the outer side of the spline sleeve (14) is also fixedly connected with a first gear (16), one end of the second lead screw (8) is fixedly connected with a second gear (17), and the first gear (16) and the second gear (17) are meshingly connected.

2. The robot walking slide capable of realizing multi-directional movement as claimed in claim 1, characterized in that: Both ends of the top of the second movable frame (11) are installed with fourth bearing seats (18), and a third lead screw (19) is installed through the two fourth bearing seats (18), and a third lead screw nut (20) is installed on the third lead screw (19), and a fourth connecting seat (21) is fixedly connected to the outer side of the third lead screw nut (20), and a mounting platform (22) is fixedly connected to the top of the fourth connecting seat (21).

3. The robot walking slide capable of realizing multi-directional movement as claimed in claim 1, characterized in that: Two first guide rails (23) are installed on the top of the base (1) on both sides of the first lead screw (3), and two groups of first guide rail sliders (24) are arranged at the bottom of the first movable frame (6), and the two groups of first guide rail sliders (24) are respectively slidably connected to the two first guide rails (23).

4. The robot walking slide capable of realizing multi-directional movement as claimed in claim 1, characterized in that: Two second guide rails (25) are installed on the top of the first movable frame (6) on both sides of the second lead screw (8), and two second guide rail sliders (26) are arranged at the bottom of the second movable frame (11), and the two second guide rail sliders (26) are respectively slidably connected to the two second guide rails (25).

5. The robot walking slide capable of realizing multi-directional movement as claimed in claim 2, characterized in that: Two third guide rails (27) are respectively arranged on both sides of the third lead screw (19) at the top of the second movable frame (11), and two third guide rail sliders (28) are respectively arranged at the bottom of the mounting platform (22), and the two third guide rail sliders (28) are respectively slidably connected to the two third guide rails (27).

6. The robot walking slide capable of realizing multi-directional movement as claimed in claim 2, characterized in that: A first motor (29) is fixedly mounted on one side of the second movable frame (11), and an output end of the first motor (29) is transmission-connected to the second lead screw (8); a second motor (30) is fixedly mounted on one side of the mounting platform (22), and an output end of the second motor (30) is transmission-connected to the third lead screw (19).

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