Heavy-load robot seventh shaft

Abstract

The utility model discloses a heavy load type robot seventh shaft which comprises a base, a supporting plate movably arranged on the base and a robot fixedly arranged on the top of the supporting plate, the supporting plate is connected with the base through a movable guide assembly, and the movable guide assembly comprises rectangular pipes symmetrically and fixedly arranged on the two side edges of the base. Fixing strips are symmetrically and fixedly arranged at the tops of the two rectangular pipes, first guide rails are fixedly arranged at the tops of the fixing strips, second guide rails are symmetrically and fixedly arranged on the opposite sides of the two fixing strips, sliding blocks are symmetrically and fixedly arranged at the two ends of the bottom of the supporting plate, and the sliding blocks are slidably connected to the first guide rails and the second guide rails. According to the heavy-load type robot seventh shaft, the arranged supporting plate is movably connected with the base through the movable guide assembly, the movable guide assembly adopts the double-guide-rail design, the stress of the guide rails can be dispersed, and therefore the stability is improved, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of industrial robot attachment devices, in particular to a seventh axis of a heavy-load robot. Background Art

[0002] The seventh axis of a heavy-duty robot, also known as the robot external axis or additional axis, is an important component of the industrial robot system, especially in the industrial automation production line. The seventh axis of a robot, also known as the robot ground rail, robot ceiling rail, robot guide rail, etc., is mainly used to expand the robot's operating radius and enhance its scope of use and function. For the seventh axis of a heavy-duty robot, its design pays more attention to the load-bearing capacity and stability to meet the needs of heavy-duty operations.

[0003] The current ground rails generally adopt a conventional single-rail structure when in use. When the robot's pallet moves on it, the rails will be under great pressure and are very easy to wear, which greatly reduces the service life and indirectly increases the cost.

[0004] Therefore, it is necessary to propose a heavy-duty robot seventh axis to solve the above problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a seventh axis of a heavy-duty robot, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The cam is an axially movable member which is adapted to move relative to the support frame and is adapted to move relative to the support frame when the cam is in motion.

[0008] Preferably, the number of the sliding blocks located on the same side of the bottom of the support plate is two, and the two sliding blocks on the same side are respectively arranged at the left and right ends of the support plate.

[0009] Preferably, the number of the first rollers on each of the sliders is two;

[0010] The number of the second roller on each of the sliders is one;

[0011] The number of the third roller on each of the sliding blocks is one, and the third roller, the second roller and the two first rollers are arranged alternately.

[0012] Preferably, the rectangular tube is arranged along the length direction of the base, and the rectangular tube is in a "concave" shape, and the rectangular tube is fixedly sleeved on the side of the base.

[0013] Preferably, the fixing strip is arranged along the length direction of the rectangular tube;

[0014] The first guide rail and the second guide rail are both arranged along the length direction of the fixing bar.

[0015] Preferably, the outer side of the slider is provided with mounting grooves corresponding to the first roller, the second roller and the third roller one by one, a fixed shaft is fixedly arranged in the mounting groove corresponding to the first roller, the first roller is rotatably connected to the inner end of the fixed shaft, an eccentric shaft is rotatably arranged in the mounting grooves corresponding to the second roller and the third roller, and the second roller and the third roller are rotatably connected to the inner end of the eccentric shaft.

[0016] Compared with the prior art, the utility model provides a heavy-duty robot seventh axis, which has the following beneficial effects:

[0017] 1. The seventh axis of the heavy-duty robot is movably connected with the base through a movable guide assembly through a support plate. The movable guide assembly mainly includes a rectangular tube, a fixed bar, a first guide rail, a second guide rail, a slider, a first roller, a second roller, and a third roller. The fixed bar is installed directly above the rectangular tube so that the rectangular tube is subjected to positive pressure as a whole. The first guide rail and the second guide rail are respectively fixed on two adjacent planes of the fixed bar, that is, arranged at 90 degrees. The first guide rail directly above is subjected to pressure from two first rollers, the side of the second guide rail is subjected to pressure from the second roller, and the bottom of the second guide rail is supported by rolling by the third roller. This structure can disperse the force, thereby improving stability and extending service life.

[0018] 2. The seventh axis of the heavy-duty robot corresponds to the second roller and the third roller through the eccentric shaft set. The position of the eccentric shaft can be adjusted by positive and negative rotation to achieve the purpose of locking and loosening, which is convenient for compatibility with the errors caused by continuous multi-section assembly during the actual installation process, reduces the difficulty of assembly adjustment and facilitates disassembly and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the specific structure of the end of the base of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the bottom perspective of the support plate of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the slider of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the utility model in a disassembled state of the first roller, the third roller, the second roller and the sliding block.

[0024] In the figure: 1, base; 2, robot; 3, pallet; 4, slider; 5, rectangular tube; 6, fixing bar; 7, first guide rail; 8, second guide rail; 9, first roller; 10, second roller; 11, third roller; 12, mounting groove; 13, eccentric shaft; 14, fixed shaft. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1-5 As shown, a seventh axis of a heavy-duty robot comprises a base 1, a support plate 3 movably arranged on the base 1, and a robot 2 fixedly arranged on the top of the support plate 3. The support plate 3 is connected to the base 1 through a movable guide assembly. The movable guide assembly comprises rectangular tubes 5 symmetrically fixedly arranged on two sides of the base 1. The rectangular tubes 5 are arranged along the length direction of the base 1, and the rectangular tubes 5 are "concave" shaped, and the rectangular tubes 5 are fixedly sleeved on the sides of the base 1. Fixed bars 6 are symmetrically fixedly arranged on the tops of the two rectangular tubes 5. The fixed bars 6 are arranged along the length direction of the rectangular tubes 5. A first guide rail 7 is fixedly arranged along the top of the fixed bars 6. Second guide rails 8 are symmetrically fixedly arranged on the opposite sides of the two fixed bars 6. The first guide rail 7 and the second guide rail 8 are both arranged along the length direction of the fixed bars 6. The bottom ends of the support plate 3 are symmetrically fixedly arranged with Slide block 4, and the number of slide blocks 4 located on the same side of the bottom of the support plate 3 is two, and the two slide blocks 4 on the same side are respectively arranged at the left and right ends of the support plate 3, and the slide block 4 is slidably connected to the first guide rail 7 and the second guide rail 8, the upper end of the inner side of the slide block 4 is rotatably connected with the first roller 9 rolling on the top of the first guide rail 7, the number of first rollers 9 on each slide block 4 is two, the inner bottom of the slide block 4 is rotatably connected with the third roller 11 rolling on the bottom of the second guide rail 8, the end of the inner side of the slide block 4 away from the fixed bar 6 is rotatably connected with the second roller 10 rolling on the side of the second guide rail 8 away from the fixed bar 6, the number of second rollers 10 on each slide block 4 is one, the number of third rollers 11 on each slide block 4 is one, and the third rollers 11, the second rollers 10 and the two first rollers 9 are staggered;

[0027] When in use, a fixing bar 6 is installed directly above the rectangular tube 5, so that the rectangular tube 5 is subjected to positive pressure as a whole. The first guide rail 7 and the second guide rail 8 are respectively fixed on two adjacent planes of the fixing bar 6, that is, arranged at 90 degrees. The first guide rail 7 directly above is subjected to pressure from two first rollers 9, the side of the second guide rail 8 is subjected to pressure from the second roller 10, and the bottom of the second guide rail 8 is supported by rolling by the third roller 11. This structure can disperse the force, thereby improving stability and extending service life, and greatly improving the load capacity. The total load capacity is 7 tons and the total length is 22 meters.

[0028] Furthermore, the outer side of the slider 4 is provided with mounting grooves 12 corresponding to the first roller 9, the second roller 10, and the third roller 11, and a fixed shaft 14 is fixedly provided in the mounting groove 12 corresponding to the first roller 9 by screws, and the first roller 9 is rotatably connected to the inner end of the fixed shaft 14;

[0029] An eccentric shaft 13 is rotatably arranged in the installation groove 12 corresponding to the second roller 10 and the third roller 11, and the second roller 10 and the third roller 11 are rotatably connected to the inner end of the eccentric shaft 13. The eccentric shaft 13 is arranged to correspond to the second roller 10 and the third roller 11, and the position of the eccentric shaft 13 can be adjusted by forward and reverse rotation to achieve the purpose of locking and loosening, which is convenient for compatibility with errors caused by continuous assembly of multiple sections during actual installation, reduces the difficulty of assembly adjustment and facilitates disassembly and replacement. After rotating the eccentric shaft 13, it can also be fixed and locked by screws.

[0030] In addition, an identification hole is provided on the outer end of the eccentric shaft 13 for setting an identification to prevent misoperation.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A seventh axis of a heavy-duty robot, comprising a base (1), a support plate (3) movably arranged on the base (1), and a robot (2) fixedly arranged on the top of the support plate (3), characterized in that: The support plate (3) is connected to the base (1) via a movable guide assembly, the movable guide assembly comprising rectangular tubes (5) symmetrically fixedly arranged on two side edges of the base (1), the tops of the two rectangular tubes (5) are symmetrically fixedly arranged with fixing strips (6), the tops of the fixing strips (6) are fixedly arranged with a first guide rail (7), the opposite sides of the two fixing strips (6) are symmetrically fixedly arranged with a second guide rail (8), the two ends of the bottom of the support plate (3) are symmetrically fixedly arranged with sliders (4), and the sliders (4) are slidably connected to the first guide rail (7) and the second guide rail (8), the upper end of the inner side of the slider (4) is rotatably connected to a first roller (9) rolling on the top of the first guide rail (7), the inner bottom of the slider (4) is rotatably connected to a third roller (11) rolling on the bottom of the second guide rail (8), and the inner end of the slider (4) away from the fixing strip (6) is rotatably connected to a second roller (10) rolling on the side of the second guide rail (8) away from the fixing strip (6).

2. The seventh axis of a heavy-duty robot according to claim 1, characterized in that: There are two sliders (4) located on the same side of the bottom of the support plate (3), and the two sliders (4) on the same side are respectively arranged at the left and right ends of the support plate (3).

3. The seventh axis of a heavy-duty robot according to claim 1, characterized in that: The number of the first rollers (9) on each of the sliders (4) is two; The number of the second roller (10) on each of the sliders (4) is one; The number of the third roller (11) on each of the slide blocks (4) is one, and the third roller (11), the second roller (10) and the two first rollers (9) are arranged in an alternating manner.

4. The seventh axis of a heavy-duty robot according to claim 1, characterized in that: The rectangular tube (5) is arranged along the length direction of the base (1), and the rectangular tube (5) is in a "concave" shape, and the rectangular tube (5) is fixedly sleeved on the side of the base (1).

5. The seventh axis of a heavy-duty robot according to claim 4, characterized in that: The fixing strip (6) is arranged along the length direction of the rectangular tube (5); The first guide rail (7) and the second guide rail (8) are both arranged along the length direction of the fixing bar (6).

6. The seventh axis of a heavy-duty robot according to claim 1, characterized in that: The outer side of the slider (4) is provided with mounting grooves (12) corresponding to the first roller (9), the second roller (10) and the third roller (11), a fixed shaft (14) is fixedly arranged in the mounting groove (12) corresponding to the first roller (9), the first roller (9) is rotatably connected to the inner end of the fixed shaft (14), an eccentric shaft (13) is rotatably arranged in the mounting grooves (12) corresponding to the second roller (10) and the third roller (11), and the second roller (10) and the third roller (11) are rotatably connected to the inner end of the eccentric shaft (13).

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