Machining device for industrial robot parts

Abstract

A machining device for industrial robot parts, comprising a first frame plate (1), a second frame plate (2), a rotating disc (3), a correction device (4) and a fixing device (5). The rotating disc is rotationally connected to the center of the first frame plate, and the correction device is arranged on the rotating disc; a rotating assembly (6) is arranged between the fixing device and the first frame plate, and a plurality of supporting columns (8) are evenly distributed in the diagonal directions of the first frame plate; a positioning device (9) is further provided at the bottom portion of the first frame plate, and the correction device is used in cooperation with the supporting columns. After a universal ball (81) is used to lift a bottom plate (72), the correction device is used to correct a square tube (71) and the bottom plate to the center position, and the square tube and the bottom plate overlap and align with each other, thus avoiding misalignment between the square tube and the bottom plate at the welding positions. The fixing device can automatically fix rib plates (73) to required welding positions, and the correction device and the fixing device can adapt to the welding work of a base (7) within a certain size range, thereby satisfying production requirements of factories.

Description

The present invention relates to the field of robot part processing, and in particular to a processing device for industrial robot parts. Background Art An industrial robot base is a type of base that is used to support a robot body and to fix the same on the ground. For most of the existing bases, two bottom plates are respectively welded at upper and lower ends of a square tube, and then rib plates for reinforcement are welded between the bottom plates and the square tube, so as to form a complete base. During the existing welding work of bases, the operation mostly involves placing the bottom plates on the ground, then placing the square tube on the bottom plates, manually aligning the square tube with the bottom plates, and holding the square tube with a hand for welding. When the rib plates are welded, it is also necessary to first mark the positions to be welded on the bottom plates before welding. The lack of a corresponding positioning device in the welding process leads to deviation of positions between the square tube and the bottom plates as well as between the rib plates and the square tube, the bottom plates during welding, resulting in poorer accuracy of the welded base, which will affect the subsequent work of supporting a robot. Therefore, once the position deviation between the parts is found after the welding is completed, the base will have to be scrapped, which is leads to waste. When dealing with some bases with larger output, some factories will design corresponding positioning devices to assist welding, but sizes of bases required by different robots are different, and it is difficult for the existing specific positioning devices to meet welding requirements of the bases with different sizes. Summary of the Invention The purpose of the present invention is to provide a processing device for industrial robot parts, so as to solve the problems mentioned in the Background Art. A processing device for industrial robot parts includes a frame plate I, a frame plate II, a turn table, a calibration device, and fixing devices, where the frame plate I is fixedly connected above the frame plate II, the turn table is rotatably connected at a center of the frame plate I, and the calibration device is arranged on the turn table and is configured to calibrate a square tube and bottom plates on a robot base to a center position; the fixing device is arranged at one side of the frame plate I; the fixing devices are configured to fix rib plates to centers of the square tube and the bottom plates, and allows same to be in contact with the square tube and the bottom plates for fitting therewith; a rotating assembly is arranged between each of the fixing devices and the frame plate I; and the rotating assemblies are configured to rotate the fixing devices and maintain same in horizontal and vertical states; a plurality of support columns are uniformly distributed in a diagonal direction of the frame plate I, and universal balls are arranged at top ends of the support columns; and a positioning device is also arranged at a bottom of the frame plate I, four positioning holes for positioning the positioning device are equidistantly reserved along a circumference of the turn table, and the positioning device is configured to limit a rotation of the turn table. Preferably, the calibration device includes a motor I, where the motor I is fixedly connected to the frame plate II, and an output shaft of the motor I passes through the turn table and is fixedly connected to a gear; each of the upper and lower layers of the gear is engaged with a pair of parallel racks, and the racks of different layers are perpendicular to each other; and the racks are slidably connected to a limit block arranged on the turn table, and outer ends of the racks are fixedly connected to a push plate. Preferably, each of the fixing devices includes a rotating frame, a limit shaft and a two-way screw rod are rotatably comiected to an interior of the rotating frame, the limit shaft is slidably connected to two symmetrical clamp plates, the two clamp plates are respectively in thread connection with threads with two different turning directions of the two-way screw rod, a motor II is fixedly connected to an outer side of the rotating frame, an output shaft of the motor II is fixedly connected to the two-way screw rod, the rotating frame is also fixedly connected to an electric push rod, an output shaft of the electric push rod is fixedly connected to a connecting block, and a push block is hinged to the connecting block; and the rotating frames are connected to the frame plate I by means of the rotating assemblies, and the rotating assemblies are configured to rotate the rotated rotating frames and maintain same in horizontal and vertical states. Preferably, a plurality of sliding rollers are rotatably connected to outward extending inner sides of the clamp plates, and outer sides of the sliding rollers are provided with anti-skid layers. Preferably, each of the rotating assemblies includes a support and a sliding shaft; an articulated block is arranged at a back of each of the rotating frames, a spline groove I is formed inside the articulated block, the support is internally provided with a spline groove II which is the same as the spline groove I, the articulated block is located in the support, the sliding shaft is slidably connected to the articulated block and the support, one end of the sliding shaft is fixedly connected to a stopper I, the other end thereof is fixedly connected to a stopper II, and a spring I is sleeved outside the sliding shaft between the stopper I and the support; and a section of spline I is provided in a middle of the sliding shaft, a section of spline II is provided between the stopper I and the spline I, the spline I is slidably connected inside the spline groove I, and the spline II is slidably connected inside the spline groove II. Preferably, the positioning device includes an insertion rod and an electromagnet, where an outer end of the insertion rod passes through a bracket arranged at the bottom of the frame plate I and is fixedly connected to an iron piece, the insertion rod is slidably connected to the bracket, the insertion rod is provided with a limit ring, a spring II is sleeved outside the insertion rod between the limit ring and the bracket, the electromagnet is arranged at an outer side of the iron piece and is fixedly connected to the frame plate I, and balls are arranged at an inner end of the insertion rod. The present invention has the following advantages. Due to the fact that the calibration device is arranged at the center of the frame plate I and is used in conjunction with the support columns, after the bottom plates are lifted up by the universal balls, the calibration device is arranged to calibrate the square tube and the bottom plates to the center position, such that the square tube and the bottom plates are aligned with each other, which avoids deviation of welding positions between the square tube and the bottom plates; the fixing devices are respectively arranged at four sides of the calibration device, which can automatically fix the rib plates to positions to be welded, thus facilitating the subsequent welding work; the calibration device and the fixing devices can adapt to the welding work of bases in a certain size range, and there is no need to redesign a positioning tooling as before when dealing with the bases with different sizes, which achieves stronger adaptability and meets production needs of a factory; and in addition, the calibration device composed of the gear and the racks can also drive the turn table and the robot base to rotate together when the insertion rod is not inserted into the positioning hole, so as to replace a side edge of the rib plate to be welded while keeping the center position of the robot base unchanged. Brief Description of the Drawings FIG. 1 is a schematic diagram of the overall structure of the present invention; FIG. 2 is a schematic structural diagram of a calibration device after a base is cut open; FIG. 3 is a partial enlarged view at part A in FIG. 1; FIG. 4 is a schematic structural diagram of a fixing device; FIG. 5 is a schematic structural diagram of a rotating assembly; FIG. 6 is a schematic diagram of a turn table and a positioning device after being cut open; FIG. 7 is a partial enlarged view at part B in FIG. 6; and FIG. 8 is a schematic structural diagram of the robot base. In figures: 1 denotes a frame plate I; 11 denotes a through hole; 2 denotes a frame plate II; 3 denotes a turn table; 4 denotes a calibration device; 41 denotes a motor I; 42 denotes a gear; 43 denotes racks; 44 denotes a limit block; 45 denotes a push plate; 5 denotes a fixing device; 50 denotes a rotating frame; 501 denotes an articulated block; 51 denotes a limit shaft; 52 denotes a two-way screw rod; 53 denotes a clamp plate; 54 denotes a motor II; 55 denotes an electric push rod; 56 denotes a connecting block; 57 denotes a push block; 58 denotes sliding rollers; 6 denotes a rotating assembly; 61 denotes a support, 62 denotes a sliding shaft; 63 denotes a stopper I; 64 denotes a stopper II; 65 denotes a spring I; 66 denotes splines I; 67 denotes splines II; 7 denotes a base; 71 denotes a square tube; 72 denotes bottom plates; 73 denotes a rib plate; 8 denotes support columns; 81 denotes universal balls; 9 denotes a positioning device; 91 denotes an insertion rod; 92 denotes an electromagnet; 93 denotes a bracket; 94 denotes an iron piece; 95 denotes a limit ring; and 96 denotes a spring II. Detailed Description of the Invention In order to make it easy to understand the technical means, creation features, objectives and effects of the present invention, the present invention is further described below in conjunction with a specific embodiment. As shown in FIG. 1 to FIG. 8, a processing device for industrial robot parts includes a frame plate I 1, a frame plate II 2, a turn table 3, a calibration device 4, and fixing devices 5, where the frame plate I 1 is fixedly connected above the frame plate II 2, the turn table 3 is rotatably connected at a center of the frame plate I I, and the calibration device 4 is arranged on the turn table 3 and configured to calibrate a square tube 71 and bottom plates 72 on a robot base 7 to a center position; the fixing device 5 is arranged at one side of the frame plate I 1; the fixing devices 5 are configured to fix rib plates 73 to centers of the square tube 71 and the bottom plates 72, and allows same to be in contact with the square tube 71 and the bottom plates 72 for fitting therewith; a rotating assembly 6 is arranged between each of the fixing devices 5 and the frame plate I 1; and the rotating assemblies 6 are configured to rotate the fixing devices 5 and maintain same in horizontal and vertical states; a plurality of support columns 8 are uniformly distributed in a diagonal direction of the frame plate 11, and universal balls 81 are arranged at top ends of the support columns 8; and a positioning device 9 is also arranged at a bottom of the frame plate I 1, four positioning holes for positioning the positioning device 9 are equidistantly reserved along a circumference of the turn table 3, and the positioning device 9 is configured to limit a rotation of the turn table 3. In this embodiment, the calibration device 4 includes a motor 141, where the motor I 41 is fixedly connected to the frame plate II 2, and an output shaft of the motor I passes through the turn table 3 and is fixedly connected to a gear 42; each of the upper and lower layers of the gear 42 is engaged with a pair of parallel racks 43, and the racks 43 of different layers are perpendicular to each other; and the racks 43 are slidably connected to a limit block 44 arranged on the turn table 3, and outer ends of the racks 43 are fixedly connected to a push plate 45. In this embodiment, each of the fixing devices 5 includes a rotating frame 50, a limit shaft 51 and a two-w ay screw rod 52 are rotatably connected to an interior of the rotating frame 50, the limit shaft 51 is slidably connected to two symmetrical clamp plates 53, the two clamp plates 53 are respectively in thread connection with threads with two different turning directions of the two-way screw rod 52, a motor II 54 is fixedly connected to an outer side of the rotating frame 50, an output shaft of the motor II 54 is fixedly connected to the two-way screw rod 52, the rotating frame 50 is also fixedly connected to an electric push rod 55, an output shaft of the electric push rod 55 is fixedly connected to a coimecting block 56, and a push block 57 is hinged to the connecting block 56; and the rotating frames 50 are connected to the frame plate I 1 by means of the rotating assemblies 6, and the rotating assemblies 6 are configured to rotate the rotated rotating frames 50 and maintain same in horizontal and vertical states. In this embodiment, each of the rotating assemblies 6 includes a support 61 and a sliding shaft 62; an articulated block 501 is arranged at a back of each of the rotating frames 50, a spline groove I is formed inside the articulated block 501, the support 61 is internally provided with a spline groove II which is the same as the spline groove I, the articulated block 501 is located in the support 61, the sliding shaft 62 is slidably connected to the articulated block 501 and the support 61, one end of the sliding shaft 62 is fixedly connected to a stopper I 63, the other end thereof is fixedly connected to a stopper II 64, and a spring I 65 is sleeved outside the sliding shaft 62 between the stopper I 63 and the support 61; and a section of spline I 66 is provided in a middle of the sliding shaft 62, a section of spline II 67 is provided between the stopper 1 63 and the spline I 66, the spline I 66 is slidably connected inside the spline groove I, and the spline II 67 is slidably connected inside the spline groove II. In this embodiment, a plurality of sliding rollers 58 are rotatably connected to outward extending inner sides of the clamp plates 53, and outer sides of the sliding rollers 58 are provided with anti-skid layers to increase the vertical friction force against the rib plates 73. In this embodiment, the positioning device 9 includes an insertion rod 91 and an electromagnet 92, where an outer end of the insertion rod 91 passes through a bracket 93 arranged at the bottom of the frame plate I 1 and is fixedly connected to an iron piece 94, the insertion rod 91 is slidably connected to the bracket 93, the insertion rod 91 is provided with a limit ring 95, a spring II 96 is sleeved outside the insertion rod 91 between the limit ring 95 and the bracket 93, the electromagnet 92 is arranged at an outer side of the iron piece 94 and is fixedly connected to the frame plate I 1, and balls are arranged at an inner end of the insertion rod 91. Working process and working principle: The base 7 is supported by the square tube 71, and the bottom plates 72 are welded at both ends of the square tube. One of the bottom plates 72 is fixed to the ground, and the other bottom plate 72 is fixed to a robot. The bottom plates 72 are provided with square notches corresponding to an inner hole of the square tube 71. At the beginning, the rotating frames 50 are is in a vertical state, that is, the clamp plates 53 and the electric push rods 55 are in an upwardly facing vertical state, making room for the bottom plates 72 to be placed on the frame plate 11 subsequently. Step 1: The square tube 71 is positioned with one of the bottom plates 72. One of the bottom plates 72 is placed on the universal balls 81, and the calibration device 4 is located in the square notch of the bottom plate 72. At this time, the bottom plate 72 can move freely, and then the square tube 71 is approximately aligned with the square notch of the bottom plate 72. At this time, the insertion rod 91 is located in the positioning hole, and the position of the turn table 3 is fixed and cannot be rotated. The motor I 41 is started. The motor 1 41 drives the gear 42 to rotate clockwise, and the clockwise rotation of the gear 42 allows four racks 43 to extend outwards; the push plates 45 acts on the square tube 71 and inner sides of the square notches at the same time, so that the square tube 71 and the inner sides of the square notches are forcibly fitted with the push plates 45; and therefore, the square tube 71 and the square notches are calibrated to the center, and the square tube 71 can also keep aligned with the square notches. After the calibration of the square tube 71 and the bottom plates 72 is completed, a hydraulic cylinder is reset, a support plate descends, the universal balls 81 are collected back into a through hole 11, and the bottom plate 72 falls onto the frame plate 11. Step 3: The rib plates 73 is installed. In the initial state, the splines I 66 are located in the spline groove I, and the splines II 67 are located in the spline groove II. The stoppers I 63 are pressed to allow the sliding shafts 62 to slide towards one sides of the stoppers II 64, the splines I 66 are always in the spline groove I, and the moved splines II 67 move from the spline groove II to the spline groove I. At this time, smooth circumferential portions of the sliding shafts 62 are located in the spline groove II, and the rotating frames 50 can rotate normally. The rotating frames 50 are manually rotated to a certain angle, and at this time, backs of the rotating frames 50 are fitted with the supports 61; the stoppers 1 63 are released to allow the springs I 65 to be reset and the splines II 67 to be reinserted into the spline groove II, so as to maintain the horizontal state of the rotating frames 50. In the above state, the clamp plates 53 are also horizontal. Then, the rib plates 73 can pass through the part between the two clamp plates 53, and the rib plates 73 are both placed on the bottom plates 72. At this time, a spacing between the clamp plates 53 is relatively large, the rib plates 73 cannot be kept vertically in the center position, and the motors II 54 are started. The two-way screw rods 52 rotate in a positive direction, which drives the two clamp plates 53 to approach each other until the sliding rollers 58 on the clamp plates 53 clamp the rib plates 73. After the rib plates 73 are clamped, the electric push rods 55 are started, causing the push blocks 57 to be close to outer edges of the rib plates 73. The push blocks 57 are hinged to the connecting blocks 56, which can adapt to the inclination of the outer edges of the rib plates 73. The push blocks are in contact with the rib plates 73, making the rib plates 73 move towards the square tube 71 under the limit of the sliding rollers 58, and gradually adhere to the square tube 71, so that the rib plates 73 are fixed. Then, the fixed square tube 71, the bottom plates 72, and the rib plates 73 can be welded. Step 4: The rib plates 73 at other positions are welded. The clamp plates 53 release the welded rib plate 73, and then the stopper I 63 is pressed to rotate the clamp plates 53 to the vertical state and re-lock same. Thus, the interference with the rotation of the square tube 71 and the bottom plates 72 is avoided. The electromagnet 92 is energized to cause the electromagnet 92 to adsorb the iron piece 94, thus pulling out the insertion rod 91 from the positioning hole. At this time, the turn table 3 can rotate normally without being subjected to the limiting effect of the insertion rod 91. The motor I 41 is started to drive the gear 42 to still rotate clockwise. Since the racks 43 are restricted by the square tube 71 at this time, they caimot continue to extend outwards. Therefore, when the gear 42 rotates, the four racks 43 are driven to rotate together, thereby driving the bottom plates 72 and the square tube 71 to rotate. When the turn table 3 starts to rotate, the electromagnet 92 is de-energized, the insertion rod 91 moves towards a peripheral wall of the turn table 3 under the action of the spring II96, and the balls are in tangential contact with the peripheral wall of the turn table 3. After the turn table 3 rotates at a certain angle, the square tube 71 rotates to the other side, the insertion rod 91 is automatically inserted into the positioning hole under the action of the spring II 96, the turn table 3 is locked, and the motor 1 41 is stopped. Thereafter, the Step 3 may be repeated for welding the rib plates 73 in another direction. Repeat several times until all the rib plates 73 are welded. Step 5: The other bottom plate 72 is welded. The welded semi-finished product is taken out, the other bottom plate 72 is placed at an outer side of the calibration device 4, then the semi-finished product is placed on the second bottom plate 72 upside down, the calibration and positioning work of the bottom plate 72 and the square tube 71 is repeated, thus completing the welding of the other bottom plate 72. At this point, a complete bottom plate 72 is welded. From technical knowledge, it can be inferred that the present invention can be implemented through other embodiments that do not depart from its spiritual essence or necessary features. Therefore, the embodiments disclosed above are, in all respects, merely illustrative and not exclusive. All changes which come within the scope of the present invention or within the scope equivalent to the present invention are embraced by the present invention.

Claims

1. A processing device for industrial robot parts, characterized by comprising a frame plate I (1), a frame plate II (2), a turn table (3), a calibration device (4), and fixing devices (5), wherein the frame plate I (1) is fixedly connected above the frame plate II (2),the turn table (3) is rotatably connected at a center of the frame plate I (1), and the calibration device (4) is arranged on the turn table (3) and is configured to calibrate a square tube (71) and bottom plates (72) on a robot base (7) to a center position;the fixing device (5) is arranged at one side of the frame plate I (1); the fixing devices (5) are configured to fix rib plates (73) to centers of the square tube (71) and the bottom plates (72), and allows same to be in contact with the square tube (71) and the bottom plates (72) for fitting therewith; a rotating assembly (6) is arranged between each of the fixing devices (5) and the frame plate I (1); and the rotating assemblies (6) are configured to rotate the fixing devices (5) and maintain same in horizontal and vertical states;a plurality of support columns (8) are uniformly distributed in a diagonal direction of the frame plate I (1), and universal balls (81) are arranged at top ends of the support columns (8); anda positioning device (9) is also arranged at a bottom of the frame plate 1(1), four positioning holes for positioning the positioning device (9) are equidistantly resen cd along a circumference of the turn table (3), and the positioning device (9) is configured to limit a rotation of the turn table (3).

2. The processing device for the industrial robot parts according to claim 1, characterized in that the calibration device (4) comprises a motor I (41), wherein the motor I (41) is fixedly connected to the frame plate II (2), and an output shaft of the motor I passes through the turn table (3) and is fixedly connected to a gear (42); each of the upper and lower layers of the gear (42) is engaged with a pair of parallel racks (43), and the racks (43) of different layers are perpendicular to each other; and the racks (43) are slidably connected to a limit block (44) arranged on the turn table (3), and outer ends of the racks (43) are fixedly connected to a push plate (45).

3. The processing device for the industrial robot parts according to claim 1, characterized inthat each of the fixing devices (5) comprises a rotating frame (50), a limit shaft (51) and a two-way screw rod (52) are rotatably connected to an interior of the rotating frame (50), the limit shaft (51) is slidably connected to two symmetrical clamp plates (53), the two clamp plates (53) are respectively in thread connection with threads with two different turning directions of the two-way screw rod (52), a motor II (54) is fixedly connected to an outer side of the rotating frame (50), an output shaft of the motor II (54) is fixedly connected to the two-way screw rod (52), the rotating frame (50) is also fixedly connected to an electric push rod (55), an output shaft of the electric push rod (55) is fixedly connected to a connecting block (56), and a push block (57) is hinged to the connecting block (56); and the rotating frames (50) are connected to the frame plate I (1) by means of the rotating assemblies (6), and the rotating assemblies (6) are configured to rotate the rotated rotating frames (50) and maintain same in horizontal and vertical states.

4. The processing device for the industrial robot parts according to claim 3, characterized in that a plurality of sliding rollers (58) are rotatably connected to outward extending inner sides of the clamp plates (53), and outer sides of the sliding rollers (58) are provided with anti-skid layers.

5. The processing device for the industrial robot parts according to claim 3, characterized in that each of the rotating assemblies (6) comprises a support (61) and a sliding shaft (62); an articulated block (501) is arranged at a back of each of the rotating frames (50), a spline groove I is formed inside the articulated block (501), the support (61) is internally provided with a spline groove II which is the same as the spline groove I, the articulated block (501) is located in the support (61), the sliding shaft (62) is slidably connected to the articulated block (501) and the support (61), one end of the sliding shaft (62) is fixedly connected to a stopper I (63), the other end thereof is fixedly connected to a stopper II (64), and a spring I (65) is sleeved outside the sliding shaft (62) between the stopper I (63) and the support (61); and a section of spline I (66) is provided in a middle of the sliding shaft (62), a section of spline II (67) is provided between the stopper I (63) and the spline I (66), the spline I (66) is slidably connected inside the spline groove I, and the spline II (67) is slidably connected inside the spline groove II.

6. The processing device for the industrial robot parts according to claim 1, characterized in that the positioning device (9) comprises an insertion rod (91) and an electromagnet (92), wherein an outer end of the insertion rod (91) passes through a bracket (93) arranged at the bottom of the frame plate I (1) and is fixedly connected to an iron piece (94), the insertion rod (91) is slidablyconnected to the bracket (93), the insertion rod (91) is provided with a limit ring (95), a spring II (96) is sleeved outside the insertion rod (91) between the limit ring (95) and the bracket (93), the electromagnet (92) is arranged at an outer side of the iron piece (94) and is fixedly connected to the frame plate 1 (1), and balls are arranged at an inner end of the insertion rod (91).

Images