Rotary mechanical arm

Abstract

The utility model discloses a rotary mechanical arm which comprises a base and a locking mechanism. A mounting seat is arranged in the middle of the upper end of the base, a mounting groove is formed in the lower side in the mounting seat, an output rod is rotationally connected to the middle of the upper end of the mounting seat through a bearing, a connecting seat is arranged at the upper end of the output rod, and a transmission arm is connected to the upper end of the connecting seat through a fastening screw; the locking mechanism comprises a gear, six-edge sliding columns, sliding blocks, a connecting plate and an inserting block, the six-edge sliding columns are arranged on the front side and the rear side of the interior of the mounting groove correspondingly, and the left side of the outer surface of the six-edge sliding column on the front side and the right side of the outer surface of the six-edge sliding column on the rear side are slidably connected with the sliding blocks correspondingly. The rotating type mechanical arm can be locked and fixed, the problem that in the subsequent machining process, due to looseness of the rotating type mechanical arm, the machining effect of machining equipment is poor is solved, the cost is low, and meanwhile the rotating precision of the rotating type mechanical arm is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical arms, in particular to a rotary mechanical arm. Background Art

[0002] A rotary robot arm is a mechanical device that can rotate and turn. It is usually composed of multiple joints and connecting rods and can move with multiple degrees of freedom in space. The rotary robot arm can be used in various fields, such as industrial automation, aerospace, medical and other fields;

[0003] During the use of the rotary robot arm, the driving motor usually drives the processing equipment to rotate through the transmission arm, thereby adjusting the position of the processing equipment. The driving motor can also be used in conjunction with a reducer to improve the rotation accuracy and torque output of the rotary robot arm.

[0004] Although the existing rotary robotic arms can achieve precise rotation of the rotary robotic arms by driving motors during use, most motors often lack self-locking units, which leads to the rotary robotic arms being offset and loose during subsequent processing, affecting the working effect. Some rotary robotic arms have additional expensive self-locking units. Although they can lock and fix the rotary robotic arms, the cost is relatively high. Some rotary robotic arms adjust the position of the processing equipment through pneumatic or hydraulic drives. Although this driving method can self-lock, it is difficult to achieve precise position control due to the large torque output provided. For this reason, we propose a rotary robotic arm. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a rotating mechanical arm. Through the matching arrangement of gears and plug blocks, the rotating mechanical arm can be locked and fixed after it rotates, thereby solving the problem of processing effect of processing equipment due to loosening of the rotating mechanical arm in subsequent processing. The whole locking assembly is novel in design, firmly locked, simple in structure, and low in cost. At the same time, it also improves the rotation accuracy of the rotating mechanical arm, which can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotary mechanical arm, comprising a base and a locking mechanism;

[0007] Base: A mounting seat is arranged in the middle of the upper end thereof, a mounting groove is arranged on the lower side of the inner part of the mounting seat, an output rod is rotatably connected to the middle of the upper end of the mounting seat through a bearing, a connecting seat is arranged at the upper end of the output rod, and a transmission arm is connected to the upper end of the connecting seat through a fastening screw;

[0008] The locking mechanism comprises a gear, a hexagonal sliding column, a slider, a connecting plate and an insert block, wherein the hexagonal sliding column is respectively arranged on the front and rear sides of the mounting groove, and the left side of the outer surface of the front hexagonal sliding column and the right side of the outer surface of the rear hexagonal sliding column are respectively slidably connected with the slider, and a connecting plate is arranged at one end of the slider close to the inner center of the base, and an insert block is arranged in the middle of the relatively inner side surfaces of the two connecting plates, and the gear is arranged on the lower side of the outer arc surface of the output rod, and the insert blocks are plugged into the teeth of the outer arc surface of the gear. Through the matching arrangement of the gear and the insert block, the rotary mechanical arm can be locked and fixed after it rotates, which solves the problem of processing effect of the processing equipment due to loosening of the rotary mechanical arm in the subsequent processing process. The whole locking assembly is novel in design, firm in locking, simple in structure, low in cost, and also improves the rotation accuracy of the rotary mechanical arm.

[0009] Furthermore, it also includes a control switch group, which is located outside the base. The input end of the control switch group is electrically connected to the external power supply and can regulate the electrical components inside the device.

[0010] Furthermore, the locking mechanism also includes a limit rod, a fixing rod, an adjustment plate and a limit groove. The fixing rod is arranged in the middle of the bottom wall of the installation groove, and the middle part of the outer arc surface of the fixing rod is rotatably connected with the adjustment plate through a bearing. Limit grooves are arranged on the left and right sides of the upper end of the adjustment plate. The limit rods are arranged at the lower end of the slider. The limit rods are respectively located inside the vertically adjacent limit grooves, so as to adjust the position of the plug block.

[0011] Furthermore, it also includes an electric push rod, which is arranged in the middle of the left wall of the installation groove. The right end of the telescopic end of the electric push rod is fixedly connected to the left end of the connecting plate on the left side. The input end of the electric push rod is electrically connected to the output end of the control switch group, which can drive the slider on the left to move.

[0012] Furthermore, it also includes a motor, which is arranged in an avoidance groove arranged on the right side of the upper end of the connecting seat, the lower end of the motor output shaft is fixedly connected to the upper end of the output rod, the input end of the motor is electrically connected to the output end of the control switch group, and can drive the position of the connecting seat to rotate through the output rod.

[0013] Furthermore, it also includes a connecting joint, which is arranged on the upper side of the front end of the transmission arm and can be connected to external processing equipment through the connecting joint.

[0014] Furthermore, it also includes mounting holes, which are arranged at the four corners of the upper end of the base to support and fix the base and the upper equipment.

[0015] Compared with the prior art, the beneficial effects of the utility model are: the rotary mechanical arm has the following advantages:

[0016] After the adjustment is completed, the motor stops running and the electric push rod starts running through the control of the switch group, and the telescopic end of the electric push rod extends, thereby driving the left slider to move to the right, and the left slider drives the left limit rod to move to the right. At this time, the left limit rod slides inside the left limit slot and rotates relative to the left limit slot, so that the left limit rod drives the adjustment plate to rotate with the fixed rod as the center. At this time, the right limit rod slides inside the right limit slot and rotates relative to the right limit slot, and then drives the right slider to move to the left through the right limit rod, so that the spacing between the two connecting plates is gradually reduced, so that the plug block is re-engaged with the teeth of the outer arc surface of the gear, thereby realizing the locking and fixing of the rotating mechanical arm. Through the matching setting of the gear and the plug block, the rotating mechanical arm can be locked and fixed after it rotates, which solves the problem of the processing effect of the processing equipment due to the loosening of the rotating mechanical arm in the subsequent processing process. The entire locking assembly is novel in design, firmly locked, simple in structure, low in cost, and also improves the rotation accuracy of the rotating mechanical arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the front side cross-sectional structure of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the locking mechanism of the utility model.

[0020] In the figure: 1 base, 2 control switch group, 3 mounting seat, 4 mounting slot, 5 output rod, 6 connecting seat, 7 locking mechanism, 71 gear, 72 hexagonal sliding column, 73 slider, 74 connecting plate, 75 plug, 76 limit rod, 77 fixing rod, 78 adjustment plate, 79 limit slot, 8 transmission arm, 9 connecting joint, 10 motor, 11 electric push rod, 12 mounting hole. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-3 ,This embodiment provides a technical solution: a rotary mechanical arm, including a base 1 and a locking mechanism 7;

[0023] Base 1: A mounting seat 3 is provided in the middle of its upper end, a mounting groove 4 is provided on the lower side of the mounting seat 3, an output rod 5 is rotatably connected to the middle of the upper end of the mounting seat 3 through a bearing, a connecting seat 6 is provided at the upper end of the output rod 5, and a transmission arm 8 is connected to the upper end of the connecting seat 6 through a fastening screw. When working, the driving device drives the output rod 5 to rotate, thereby driving the connecting seat 6 to rotate through the output rod 5, and then the connecting seat 6 drives the processing equipment to rotate through the transmission arm 7, thereby adjusting the position of the processing equipment, and then the rotating mechanical arm can be locked by the locking device;

[0024] The locking mechanism 7 includes a gear 71, a hexagonal sliding column 72, a slider 73, a connecting plate 74 and an insert block 75. The hexagonal sliding column 72 is respectively arranged on the front and rear sides of the interior of the mounting groove 4. The left side of the outer surface of the front hexagonal sliding column 72 and the right side of the outer surface of the rear hexagonal sliding column 72 are respectively slidably connected with the slider 73. The end of the slider 73 close to the inner center of the base 1 is provided with a connecting plate 74. The middle part of the inner side of the two connecting plates 74 is provided with an insert block 75. The gear 71 is arranged on the lower side of the outer arc surface of the output rod 5. The insert blocks 75 are connected to the gear 71. 1 The teeth of the outer arc surface are plugged in, and the locking mechanism 7 also includes a limit rod 76, a fixing rod 77, an adjustment plate 78 and a limit groove 79. The fixing rod 77 is arranged at the middle of the bottom wall of the installation groove 4. The middle of the outer arc surface of the fixing rod 77 is rotatably connected with the adjustment plate 78 through a bearing. The left and right sides of the upper end of the adjustment plate 78 are provided with limit grooves 79. The limit rods 76 are arranged at the lower end of the slider 73. The limit rods 76 are respectively located inside the vertically adjacent limit grooves 79. After the adjustment is completed, the adjustment device starts to run through the control of the control device, and the telescopic end of the adjustment device is adjusted. The left slider 73 is extended to the right, and the left slider 73 drives the left limiting rod 76 to move to the right. At this time, the left limiting rod 76 slides inside the limiting groove 79 on the left and rotates relative to the limiting groove 79 on the left, so that the left limiting rod 76 drives the adjustment plate 78 to rotate around the fixed rod 77. At this time, the right limiting rod 76 slides inside the limiting groove 79 on the right and rotates relative to the limiting groove 79 on the right, thereby driving the right slider 73 to move to the left through the limiting rod 76 on the right, so that The spacing between the two connecting plates 74 is gradually reduced, so that the plug block 75 is re-engaged with the teeth of the outer arc surface of the gear 71, thereby realizing the locking and fixation of the rotating mechanical arm. Through the matching arrangement of the gear 71 and the plug block 75, the rotating mechanical arm can be locked and fixed after it rotates, thereby solving the problem of the processing effect of the processing equipment due to the loosening of the rotating mechanical arm in the subsequent processing process. The structural design is novel, the rotating mechanical arm is firmly locked, the structure is simple, the cost is low, and the rotation accuracy of the rotating mechanical arm is also improved.

[0025] Among them: it also includes a control switch group 2, which is located outside the base 1, and the input end of the control switch group 2 is electrically connected to the external power supply, which can regulate the electrical components inside the device.

[0026] Wherein: it also includes an electric push rod 11, the electric push rod 11 is arranged in the middle of the left wall of the installation groove 4, the right end of the telescopic end of the electric push rod 11 is fixedly connected to the left end of the connecting plate 74 on the left, the input end of the electric push rod 11 is electrically connected to the output end of the control switch group 2, the electric push rod 11 starts to run, the telescopic end of the electric push rod 11 extends, thereby driving the left slider 73 to move to the right, and the left slider 73 drives the left limiting rod 76 to move to the right. At this time, the left limiting rod 76 slides inside the left limiting groove 79 and rotates relative to the left limiting groove 79, so that the left limiting rod 76 drives the adjustment plate 78 to rotate around the fixed rod 77. At this time, the right limiting rod 76 slides inside the right limiting groove 79 and rotates relative to the right limiting groove 79, and then drives the right slider 73 to move to the left through the right limiting rod 76, so that the distance between the two connecting plates 74 is gradually reduced.

[0027] Wherein: it also includes a motor 10, the motor 10 is arranged in the avoidance groove arranged on the right side of the upper end of the connecting seat 6, the lower end of the output shaft of the motor 10 is fixedly connected to the upper end of the output rod 5, the input end of the motor 10 is electrically connected to the output end of the control switch group 2, through the control of the control switch group 2, the motor 10 starts to run, the output shaft of the motor 10 drives the output rod 5 to rotate, thereby driving the connecting seat 6 to rotate through the output rod 5, and then the connecting seat 6 drives the processing equipment to rotate through the transmission arm 7, thereby adjusting the position of the processing equipment.

[0028] Among them, it also includes a connecting joint 9, which is arranged on the upper side of the front end of the transmission arm 8 and is connected to external processing equipment through the connecting joint 9.

[0029] Among them: it also includes mounting holes 12, which are set at the four corners of the upper end of the base 1. Before use, the rotating robotic arm is moved to the designated work location, and the fastening bolts are passed through the mounting holes 12 to be installed and docked with the corresponding workstations, thereby achieving support and fixation of the base 1 and the upper equipment.

[0030] The working principle of a rotary robot arm provided by the utility model is as follows: before use, the rotary robot arm is moved to the designated work location, and the fastening bolts are passed through the mounting holes 12 to be installed and docked with the corresponding workstations, so as to realize the support and fixation of the base 1 and the upper equipment, and then connected with the external processing equipment through the connecting joint 9. When working, the electric push rod 11 starts to run through the control of the control switch group 2, and the telescopic end of the electric push rod 11 is shortened, thereby driving the left slider 73 to move to the left, and the left slider 73 drives the left limit rod 76 to the left. The left limiting rod 76 slides in the limiting slot 79 on the left and rotates relative to the limiting slot 79 on the left, so that the limiting rod 76 on the left drives the adjusting plate 78 to rotate around the fixing rod 77. At this time, the right limiting rod 76 slides in the limiting slot 79 on the right and rotates relative to the limiting slot 79 on the right, and then drives the right slider 73 to move rightward through the limiting rod 76 on the right, so that the distance between the two connecting plates 74 gradually increases, so that the plug block 75 is separated from the gear 71, and then the control switch group 2 is regulated. The motor 10 starts to run, and the output shaft of the motor 10 drives the output rod 5 to rotate, thereby driving the connecting seat 6 to rotate through the output rod 5, and then the connecting seat 6 drives the processing equipment to rotate through the transmission arm 7, thereby adjusting the position of the processing equipment. After the adjustment is completed, the motor 10 stops running through the control of the switch group 2, and the electric push rod 11 starts to run. The telescopic end of the electric push rod 11 extends, thereby driving the left slider 73 to move right, and the left slider 73 drives the left limit rod 76 to move right. At this time, the left limit rod 76 is in the left limit groove 79. The left limiting rod 76 drives the adjusting plate 78 to rotate around the fixing rod 77, and the right limiting rod 76 drives the adjusting plate 78 to rotate around the fixing rod 77. At this time, the right limiting rod 76 drives the right sliding block 73 to move to the left through the right limiting rod 76, so that the distance between the two connecting plates 74 is gradually reduced, and the plug block 75 is re-engaged with the teeth of the outer arc surface of the gear 71, thereby realizing the locking and fixation of the rotating robot arm, thereby improving the stability of the processing equipment.

[0031] It is worth noting that the motor 10 disclosed in the above embodiment can be selected as 5I K200A-AF, the electric push rod 11 can be selected as YRJ095, and the control switch group 2 is provided with control buttons corresponding to the motor 10 and the electric push rod 11 for controlling the switches thereof.

[0032] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A rotary robot arm, characterized in that: It comprises a base (1) and a locking mechanism (7); Base (1): A mounting seat (3) is provided in the middle of the upper end thereof, a mounting groove (4) is provided on the lower side of the mounting seat (3), an output rod (5) is rotatably connected to the middle of the upper end of the mounting seat (3) via a bearing, a connecting seat (6) is provided at the upper end of the output rod (5), and a transmission arm (8) is connected to the upper end of the connecting seat (6) via a fastening screw; The locking mechanism (7) comprises a gear (71), a hexagonal sliding column (72), a slider (73), a connecting plate (74) and an insert block (75). The hexagonal sliding column (72) is respectively arranged at the front and rear sides of the installation groove (4). The left side of the outer surface of the front hexagonal sliding column (72) and the right side of the outer surface of the rear hexagonal sliding column (72) are respectively slidably connected with the slider (73). The end of the slider (73) close to the inner center of the base (1) is provided with a connecting plate (74). The middle parts of the inner surfaces of the two connecting plates (74) are respectively provided with insert blocks (75). The gear (71) is arranged on the lower side of the outer arc surface of the output rod (5). The insert blocks (75) are respectively plugged into the teeth of the outer arc surface of the gear (71).

2. A rotary mechanical arm according to claim 1, characterized in that: It also comprises a control switch group (2), wherein the control switch group (2) is located outside the base (1), and an input end of the control switch group (2) is electrically connected to an external power supply.

3. A rotary mechanical arm according to claim 1, characterized in that: The locking mechanism (7) further comprises a limiting rod (76), a fixing rod (77), an adjusting plate (78) and a limiting groove (79); the fixing rod (77) is arranged at the middle part of the bottom wall of the mounting groove (4); the middle part of the outer arc surface of the fixing rod (77) is rotatably connected with the adjusting plate (78) via a bearing; limiting grooves (79) are arranged on both left and right sides of the upper end of the adjusting plate (78); the limiting rods (76) are arranged at the lower end of the slider (73); and the limiting rods (76) are respectively located inside the limiting grooves (79) adjacent to each other in the vertical direction.

4. A rotary mechanical arm according to claim 2, characterized in that: It also includes an electric push rod (11), which is arranged in the middle of the left wall of the installation groove (4), the right end of the telescopic end of the electric push rod (11) is fixedly connected to the left end of the connecting plate (74) on the left side, and the input end of the electric push rod (11) is electrically connected to the output end of the control switch group (2).

5. A rotary mechanical arm according to claim 2, characterized in that: It also includes a motor (10), which is arranged in an avoidance groove arranged on the right side of the upper end of the connecting seat (6), the lower end of the output shaft of the motor (10) is fixedly connected to the upper end of the output rod (5), and the input end of the motor (10) is electrically connected to the output end of the control switch group (2).

6. A rotary mechanical arm according to claim 1, characterized in that: It also comprises a connecting joint (9), wherein the connecting joint (9) is arranged on the upper side of the front end of the transmission arm (8).

7. The rotary robot arm according to claim 1, characterized in that: It also includes mounting holes (12), which are arranged at four corners of the upper end of the base (1).

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