Industrial robot seventh shaft

Abstract

The utility model relates to the technical field of industrial robots, and discloses an industrial robot seventh shaft which comprises a bottom plate, bottom beams are arranged on the front side and the rear side of the top of the bottom plate, sliding rails are arranged on the tops of the two bottom beams, and sliding blocks are arranged on the tops of the two sliding rails. According to the seventh shaft of the industrial robot, two first positioning blocks are driven to move relatively by screwing a first hand wheel, so that the two first positioning blocks are moved out of the interiors of two first positioning grooves correspondingly, at the moment, a gear can be pulled downwards to be taken out of a rectangular block, and therefore the purpose of conveniently disassembling the gear is achieved; in addition, two second positioning blocks can be driven to move backwards by screwing a second hand wheel, so that the two second positioning blocks are moved out of the interiors of two second positioning grooves correspondingly, at the moment, the mounting block can be pulled out of a rectangular strip hole, the purpose of conveniently disassembling the rack is achieved, and then the rack and the gear are conveniently replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial robots, in particular to a seventh axis of an industrial robot. Background Art

[0002] The seventh axis of an industrial robot refers to an external axis under the control of the industrial robot control system other than the axis of the industrial robot body. The setting of the seventh axis can greatly expand the application field of the industrial robot. The seventh axis of the industrial robot is usually composed of a track and a slide slidably arranged on the track. A rack is provided on the track, and a gear meshing with the rack is provided on the slide. The gear rotates under the drive of the driving mechanism, so that the slide slides along the track. However, during the use of the existing seventh axis of the industrial robot, since the rack is mostly fixedly connected to the track, and the gear is also mostly fixedly connected to the driving mechanism, it is difficult to disassemble the rack and the gear. When the rack and the gear are highly worn, it is not convenient to replace them. Therefore, a seventh axis of an industrial robot is proposed. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a seventh axis of an industrial robot, which has the advantages of easy disassembly of the rack and the gear, etc., and solves the problem that during use of the seventh axis of the existing industrial robot, the rack is mostly fixedly connected to the track, and the gear is also mostly fixedly connected to the driving mechanism, resulting in difficulty in disassembly of the rack and the gear, and it is inconvenient to replace the rack and the gear when they are highly worn.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose of facilitating the disassembly of the rack and the gear, the utility model provides the following technical solutions: a seventh axis of an industrial robot, comprising a bottom plate, bottom beams are arranged on both the front and rear sides of the top of the bottom plate, slide rails are arranged on the tops of the two bottom beams, sliders are arranged on the tops of the two slide rails, a slide table is arranged on the top of the front slider, one end of which is fixedly connected to the top of the rear slider, a U-shaped block is arranged on the top of the slide table, a servo motor is arranged on the top of the U-shaped block, and the output shaft of the servo motor extends to the inside of the U-shaped block A mounting shaft with one end extending to the bottom of the slide is provided, a rectangular strip hole is provided on the left side of the rear bottom beam, a mounting block is provided inside the rectangular strip hole, the front side of the inner wall of the rectangular strip hole is connected with a strip hole provided on the rear bottom beam, a rack with one end passing through the strip hole and extending to the front side of the rear bottom beam is provided on the front side of the mounting block, a shell is provided at the bottom of the mounting shaft, a rectangular block is provided at the bottom of the shell, a gear with one end fitted with the bottom of the shell and the other end meshing with the rack is provided on the outside of the rectangular block, and the top of the rectangular block is connected to the bottom of the shell. The part is provided with a slide groove, the rear side of the inner wall of the shell is provided with a first threaded rod with one end extending to the front side thereof, the front and rear ends of the outer side of the first threaded rod are provided with a moving block with one end movably connected to the inner top wall of the shell and the other end extending into the slide groove and movably connected to the inner bottom wall of the slide groove, the front side of the first threaded rod is provided with a first hand wheel, the front and rear sides of the inner wall of the gear are provided with a first positioning groove, the opposite sides of the two moving blocks are provided with a first positioning block with one end extending into the two first positioning grooves respectively, the rear side of the rear bottom beam is provided with a U-shaped plate, the left and right ends of the rear side of the inner wall of the U-shaped plate are provided with a second threaded rod with one end movably connected to the rear bottom beam, a traction block threadedly connected to the outer sides of the two second threaded rods is provided between the left and right sides of the inner wall of the U-shaped plate, the left and right ends of the rear side of the mounting block are provided with a second positioning groove, the left and right ends of the front side of the traction block are provided with a second positioning block with one end extending into the two second positioning grooves respectively, and the rear side of the U-shaped plate is provided with a driving component with one end extending into the interior thereof and fixedly connected to the outer sides of the two second threaded rods.

[0007] Preferably, the driving assembly includes a rotating shaft, a rotating shaft with one end extending into the interior of the U-shaped plate is movably installed on the rear side of the U-shaped plate, a driving gear located between two second threaded rods is fixedly installed on the outer side of the rotating shaft, a driven gear located on the rear side of the traction block and meshing with the driving gear at one end is fixedly installed on the outer sides of the two second threaded rods, and a second hand wheel is fixedly installed on the rear side of the rotating shaft.

[0008] Preferably, a first bearing is fixedly mounted on the rear side of the inner wall of the shell, and the first threaded rod is rotatably connected to the rear side of the inner wall of the shell via the first bearing.

[0009] Preferably, the outer side of one end of the first threaded rod located inside the shell is provided with two sections of threads, and the two sections of threads are equal in length and opposite in direction.

[0010] Preferably, the insides of the two moving blocks are each provided with a first threaded hole matched with the first threaded rod, and the front and rear sides of the inner bottom wall of the shell are each provided with through holes respectively matched with the moving tracks of the two moving blocks.

[0011] Preferably, second bearings are fixedly installed on the left and right ends of the rear side of the inner wall of the U-shaped plate and the left and right ends of the rear side of the rear bottom beam, and the second threaded rod is rotatably connected to the U-shaped plate and the rear bottom beam respectively through the second bearings.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a seventh axis of an industrial robot having the following

[0014] Beneficial effects:

[0015] The seventh axis of the industrial robot drives the first threaded rod to rotate by turning the first hand wheel, and the first threaded rod will drive the two moving blocks and the two first positioning blocks to move relative to each other during the rotation, so that the two first positioning blocks are respectively moved out from the inside of the two first positioning grooves, thereby releasing the position restriction of the gear. At this time, the gear can be pulled down to take it out from the rectangular block, thereby achieving the purpose of facilitating the disassembly of the gear. Secondly, the rotating shaft and the driving gear can be driven to rotate by turning the second hand wheel, and then the two second threaded rods are driven to rotate by the two driven gears, and the two second threaded rods will drive the traction block and the two second positioning blocks to move backward during the rotation, so that the two second positioning blocks are respectively moved out from the inside of the two second positioning grooves, thereby releasing the position restriction of the mounting block. At this time, the mounting block can be pulled out from the inside of the rectangular bar hole, thereby achieving the purpose of facilitating the disassembly of the rack, and then facilitating the replacement of the rack and the gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of the utility model;

[0017] Figure 2 It is a left side sectional view of the utility model;

[0018] Figure 3 The utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 A partial schematic diagram of a top view of a rear bottom beam of the utility model;

[0020] Figure 5 The utility model Figure 4 Enlarged view of point B in the middle.

[0021] In the figure: 1 bottom plate, 2 bottom beam, 3 slide rail, 4 slider, 5 slide table, 6 U-shaped block, 7 servo motor, 8 mounting shaft, 9 rectangular bar hole, 10 mounting block, 11 bar hole, 12 rack, 13 housing, 14 rectangular block, 15 gear, 16 slide groove, 17 first threaded rod, 18 moving block, 19 first hand wheel, 20 first positioning groove, 21 first positioning block, 22 U-shaped plate, 23 second threaded rod, 24 traction block, 25 second positioning groove, 26 second positioning block, 27 driving assembly, 271 rotating shaft, 272 driving gear, 273 driven gear, 274 second hand wheel. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 The utility model provides a technical solution: a seventh axis of an industrial robot, comprising a bottom plate 1, bottom beams 2 are fixedly installed on the front and rear sides of the top of the bottom plate 1, slide rails 3 are fixedly installed on the tops of the two bottom beams 2, sliders 4 are movably installed on the tops of the two slide rails 3, a slide table 5 with one end fixedly connected to the top of the rear slider 4 is fixedly installed on the top of the front slider 4, a U-shaped block 6 is fixedly installed on the top of the slide table 5, a servo motor 7 is fixedly installed on the top of the U-shaped block 6, the model of the servo motor 7 is MR-J2S-10A, the output shaft of the servo motor 7 extends to the inside of the U-shaped block 6 and is fixedly installed with a mounting shaft 8 with one end extending to the bottom of the slide table 5.

[0024] A rectangular strip hole 9 is provided on the left side of the rear bottom beam 2, and a mounting block 10 is movably installed inside the rectangular strip hole 9. The left and right sides of the mounting block 10 are flush with the left and right sides of the rear bottom beam 2 respectively, and the front side of the inner wall of the rectangular strip hole 9 is connected with a strip hole 11 provided on the rear bottom beam 2. The left and right sides of the inner wall of the strip hole 11 are both open in design. A rack 12 with one end passing through the strip hole 11 and extending to the front side of the rear bottom beam 2 is fixedly installed on the front side of the mounting block 10, a shell 13 is fixedly installed on the bottom of the mounting shaft 8, and a rectangular block 14 is fixedly installed on the bottom of the shell 13, and a gear 15 with one end fitted with the bottom of the shell 13 and the other end meshing with the rack 12 is movably installed on the outer side of the rectangular block 14, and a rectangular hole matching the rectangular block 14 is provided inside the gear 15.

[0025] A slide groove 16 is provided at the top of the rectangular block 14, and a first threaded rod 17 with one end extending to the front side thereof is movably installed on the rear side of the inner wall of the shell 13, and a first bearing is fixedly installed on the rear side of the inner wall of the shell 13. The first threaded rod 17 is rotatably connected to the rear side of the inner wall of the shell 13 through the first bearing. The first threaded rod 17 is located on the outer side of one end inside the shell 13 and is provided with two sections of threads, and the two sections of threads are equal in length and opposite in direction. The front and rear ends of the outer side of the first threaded rod 17 are both threadedly connected to a moving block 18 with one end movably connected to the inner top wall of the shell 13 and the other end extending into the inside of the slide groove 16 and movably connected to the inner bottom wall of the slide groove 16 , the interiors of the two moving blocks 18 are provided with first threaded holes that are compatible with the first threaded rod 17, the front and rear sides of the inner bottom wall of the shell 13 are provided with through holes that are respectively compatible with the moving trajectories of the two moving blocks 18, a first hand wheel 19 is fixedly installed on the front side of the first threaded rod 17, the front and rear sides of the inner wall of the gear 15 are provided with first positioning grooves 20, the opposite sides of the two moving blocks 18 are fixedly installed with first positioning blocks 21 with one end extending into the inside of the two first positioning grooves 20 respectively, and the front and rear sides of the inner wall of the slide groove 16 are connected with first mounting holes opened on the rectangular block 14 and compatible with the first positioning block 21.

[0026] A U-shaped plate 22 is fixedly installed on the rear side of the rear bottom beam 2, and a second threaded rod 23 with one end movably connected to the rear bottom beam 2 is movably installed on the left and right ends of the rear side of the inner wall of the U-shaped plate 22, and a second bearing is fixedly installed on the left and right ends of the rear side of the inner wall of the U-shaped plate 22 and the left and right ends of the rear side of the rear bottom beam 2, and the second threaded rod 23 is rotatably connected to the U-shaped plate 22 and the rear bottom beam 2 respectively through the second bearing, and a traction block 24 threadedly connected to the outer sides of the two second threaded rods 23 is movably installed between the left and right sides of the inner wall of the U-shaped plate 22, and second threaded holes respectively matched with the two second threaded rods 23 are provided on the left and right sides of the interior of the traction block 24, and second positioning grooves 25 are provided on the left and right ends of the rear side of the mounting block 10, and second positioning blocks 26 with one end extending to the inside of the two second positioning grooves 25 are fixedly installed on the left and right ends of the front side of the traction block 24.

[0027] A driving assembly 27 having one end extending into the interior and fixedly connected to the outer sides of the two second threaded rods 23 is movably installed on the rear side of the U-shaped plate 22. The driving assembly 27 includes a rotating shaft 271. A rotating shaft 271 having one end extending into the interior is movably installed on the rear side of the U-shaped plate 22. A second mounting hole adapted to the rotating shaft 271 is provided on the rear side of the U-shaped plate 22. A driving gear 272 located between the two second threaded rods 23 is fixedly installed on the outer side of the rotating shaft 271. A driven gear 273 located on the rear side of the traction block 24 and meshing with the driving gear 272 at one end is fixedly installed on the outer sides of the two second threaded rods 23. A second hand wheel 274 is fixedly installed on the rear side of the rotating shaft 271.

[0028] When in use, the servo motor 7 is started by an external controller to drive the installation shaft 8 and the gear 15 to rotate, and the gear 15 will drive the slide 5 to move left or right through the rack 12 meshing with it during the rotation process. When the rack 12 and the gear 15 are highly worn after long-term use, the first threaded rod 17 can be driven to rotate by turning the first hand wheel 19, and the first threaded rod 17 will drive the two moving blocks 18 and the two first positioning blocks 21 to move relative to each other during the rotation process, so that the two first positioning blocks 21 are respectively moved out of the inside of the two first positioning grooves 20, thereby releasing the position restriction of the gear 15, and at this time, the gear 15 can be pulled down to Take it out from the rectangular block 14. Secondly, the second hand wheel 274 can be turned to drive the rotating shaft 271 and the driving gear 272 to rotate, and then the two second threaded rods 23 can be driven to rotate through the two driven gears 273. During the rotation, the two second threaded rods 23 will drive the traction block 24 and the two second positioning blocks 26 to move backward, so that the two second positioning blocks 26 are respectively moved out from the inside of the two second positioning grooves 25, thereby releasing the position restriction of the mounting block 10. At this time, the mounting block 10 can be pulled out from the inside of the rectangular bar hole 9 to disassemble the rack 12, thereby facilitating the replacement of the worn rack 12 and gear 15.

[0029] In summary, the seventh axis of the industrial robot drives the first threaded rod 17 to rotate by turning the first hand wheel 19, and the first threaded rod 17 will drive the two moving blocks 18 and the two first positioning blocks 21 to move relative to each other during the rotation, so that the two first positioning blocks 21 are respectively moved out from the inside of the two first positioning grooves 20, thereby releasing the position restriction of the gear 15. At this time, the gear 15 can be pulled down to remove it from the rectangular block 14, thereby facilitating the disassembly of the gear 15. Secondly, the second hand wheel 274 can be turned to drive the rotating shaft 271 and the driving gear 272 to rotate, and then the two second threaded rods 23 are driven to rotate through the two driven gears 273, and the two During the rotation, the second threaded rod 23 will drive the traction block 24 and the two second positioning blocks 26 to move backward, so that the two second positioning blocks 26 are respectively moved out from the inside of the two second positioning grooves 25, thereby releasing the position restriction of the mounting block 10. At this time, the mounting block 10 can be pulled out from the inside of the rectangular bar hole 9, thereby achieving the purpose of facilitating the disassembly of the rack 12, and then facilitating the replacement of the rack 12 and the gear 15, solving the problem that during the use of the existing seventh axis of the industrial robot, the rack is mostly fixedly connected to the track, and the gear is also mostly fixedly connected to the driving mechanism, which makes it difficult to disassemble the rack and the gear, and when the rack and the gear are highly worn, it is inconvenient to replace them.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seventh axis of an industrial robot, comprising a base plate (1), wherein bottom beams (2) are arranged on both the front and rear sides of the top of the base plate (1), slide rails (3) are arranged on the tops of the two bottom beams (2), sliders (4) are arranged on the tops of the two slide rails (3), a slide table (5) is arranged on the top of the front slider (4), one end of which is fixedly connected to the top of the rear slider (4), a U-shaped block (6) is arranged on the top of the slide table (5), a servo motor (7) is arranged on the top of the U-shaped block (6), an output shaft of the servo motor (7) extends to the inside of the U-shaped block (6) and is provided with a mounting shaft (8) with one end extending to the bottom of the slide table (5), characterized in that: A rectangular strip hole (9) is provided on the left side of the rear bottom beam (2), a mounting block (10) is provided inside the rectangular strip hole (9), the front side of the inner wall of the rectangular strip hole (9) is connected to a strip hole (11) provided on the rear bottom beam (2), a rack (12) is provided on the front side of the mounting block (10), one end of which passes through the strip hole (11) and extends to the front side of the rear bottom beam (2), a housing (13) is provided at the bottom of the mounting shaft (8), a rectangular block (14) is provided at the bottom of the housing (13), and the rectangular block The outer side of the rectangular block (14) is provided with a gear (15) with one end being in contact with the bottom of the housing (13) and the other end being meshed with the rack (12); the top of the rectangular block (14) is provided with a slide groove (16); the rear side of the inner wall of the housing (13) is provided with a first threaded rod (17) with one end extending to the front side thereof; the front and rear ends of the outer side of the first threaded rod (17) are provided with a moving block (18) with one end movably connected to the inner top wall of the housing (13) and the other end extending into the slide groove (16) and movably connected to the inner bottom wall of the slide groove (16); A first hand wheel (19) is arranged at the front side of the first threaded rod (17); first positioning grooves (20) are arranged at both the front and rear sides of the inner wall of the gear (15); first positioning blocks (21) are arranged at opposite sides of the two moving blocks (18), one end of which extends into the inside of the two first positioning grooves (20) respectively; a U-shaped plate (22) is arranged at the rear side of the rear bottom beam (2); and second threaded rods (23) are arranged at both the left and right ends of the rear side of the inner wall of the U-shaped plate (22), one end of which is movably connected to the rear bottom beam (2); A traction block (24) is provided between the left and right sides of the inner wall of the mold plate (22) and is threadedly connected to the outer sides of the two second threaded rods (23); the left and right ends of the rear side of the mounting block (10) are both provided with second positioning grooves (25); the left and right ends of the front side of the traction block (24) are both provided with second positioning blocks (26) with one end extending into the inside of the two second positioning grooves (25) respectively; and the rear side of the U-shaped plate (22) is provided with a driving component (27) with one end extending into the inside thereof and fixedly connected to the outer sides of the two second threaded rods (23).

2. The seventh axis of an industrial robot according to claim 1, characterized in that: The driving assembly (27) comprises a rotating shaft (271), a rotating shaft (271) having one end extending into the interior of the U-shaped plate (22) being movably mounted on the rear side of the U-shaped plate (22), a driving gear (272) located between two second threaded rods (23) being fixedly mounted on the outer side of the rotating shaft (271), a driven gear (273) located on the rear side of the traction block (24) and having one end meshing with the driving gear (272) being fixedly mounted on the outer side of each of the two second threaded rods (23), and a second hand wheel (274) being fixedly mounted on the rear side of the rotating shaft (271).

3. The seventh axis of an industrial robot according to claim 1, characterized in that: A first bearing is fixedly mounted on the rear side of the inner wall of the housing (13), and the first threaded rod (17) is rotatably connected to the rear side of the inner wall of the housing (13) via the first bearing.

4. The seventh axis of an industrial robot according to claim 1, characterized in that: The first threaded rod (17) is provided with two sections of threads on the outer side of one end inside the housing (13), and the two sections of threads are of equal length and opposite directions.

5. The seventh axis of an industrial robot according to claim 1, characterized in that: The two moving blocks (18) are each provided with a first threaded hole matched with the first threaded rod (17), and the front and rear sides of the inner bottom wall of the housing (13) are each provided with through holes respectively matched with the moving tracks of the two moving blocks (18).

6. The seventh axis of an industrial robot according to claim 1, characterized in that: Second bearings are fixedly mounted on the left and right ends of the rear side of the inner wall of the U-shaped plate (22) and the left and right ends of the rear side of the rear bottom beam (2), and the second threaded rod (23) is rotatably connected to the U-shaped plate (22) and the rear bottom beam (2) respectively through the second bearings.

Images