Hardware welding robot

Abstract

The invention provides a hardware welding robot, and relates to the field of hardware machining. The hardware welding robot comprises a bottom frame, a clamping support is fixed to the top end of the bottom frame, a clamping structure used for fixing a rectangular hardware workpiece is arranged in the clamping support, two sets of outer rotating rings and inner rotating rings are arranged on the outer side of the hardware workpiece, and the axes of the outer rotating rings and the axes of the inner rotating rings are perpendicular to each other; and welding structures for welding the hardware workpiece are arranged on the outer rotating ring and the inner rotating ring. According to the hardware welding robot, the rectangular hardware workpiece can be clamped and fixed through the clamping structure, and the welding structure can be driven to move around the hardware workpiece in multiple directions by rotating the outer rotating ring and the inner rotating ring, so that the hardware workpiece can be welded and machined in multiple directions through the welding structure, and the hardware workpiece can be welded without being disassembled; and therefore, the welding machining efficiency of the hardware workpiece is improved.

Description

Technical Field

[0001] The invention relates to the field of hardware processing, in particular to a hardware welding robot. Background Art

[0002] Hardware refers to five metals: gold, silver, copper, iron, and tin. Hardware in modern society is more extensive, such as hardware tools, hardware parts, daily hardware, construction hardware, and security products. When processing rectangular hardware, it is sometimes necessary to weld the rectangular hardware, so corresponding welding robots are used to accurately weld the hardware.

[0003] Application number CN202020067512.0 discloses a welding robot suitable for hardware, including a body, a screw rod is arranged on the outer side of a first cross bar, a driving shaft of a second driving device is drivingly connected to the right end of the screw rod, a movable connection block is movably connected to the first cross bar, a driving shaft of the first driving device is drivingly connected to a first telescopic rod, the first telescopic rod is sequentially connected to a fixed housing, a welding device body and a welding work head, a movable connection plate is movably connected to a first slide rail and a second slide rail, a driving shaft of a third driving device is drivingly connected to a pressing plate through a second telescopic rod, and a conveyor belt is arranged in the middle of a workbench;

[0004] When the above patent structure is used for welding rectangular hardware, the rectangular hardware is first clamped and fixed with two sets of pressure plates, and then the welding work head is moved in the up and down and left and right directions to realize the welding of the rectangular hardware. However, this welding method can only weld the upper surface of the rectangular hardware. When it is necessary to weld other surfaces of the rectangular hardware, it is necessary to disassemble the rectangular hardware and clamp it again, which is inconvenient to operate. Therefore, it is inconvenient to weld the rectangular hardware in all directions, which reduces the efficiency of hardware welding. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the present invention provides a hardware welding robot, which solves the problem that it is inconvenient to perform multi-directional and efficient welding processing on rectangular hardware parts during welding processing on rectangular hardware parts.

[0007] (II) Technical solution

[0008] In order to achieve the above purpose of facilitating multi-directional and efficient welding of rectangular hardware during welding of rectangular hardware, the present invention is implemented through the following technical solutions: a hardware welding robot, comprising a base frame, a clamping bracket is fixed on the top of the base frame, a clamping structure for fixing a rectangular hardware workpiece is arranged in the clamping bracket, and two sets of outer rotating rings and inner rotating rings with mutually perpendicular axes are arranged on the outside of the hardware workpiece, and welding structures for welding the hardware workpiece are arranged on the outer rotating ring and the inner rotating ring;

[0009] The chassis comprises side brackets, which are fixed on four groups of side surfaces of the rectangular chassis, the front and rear groups of side brackets are equipped with external forward and reverse motors, and the left and right groups of side brackets are equipped with internal forward and reverse motors;

[0010] The outer rotating ring comprises an outer rotating ring groove, the outer rotating ring groove is arranged on the surface of the outer rotating ring, an outer ring limit block is fixed inside the outer rotating ring groove, and an outer rotating shaft is fixed on the outer ring limit block;

[0011] The inner rotating ring comprises an inner rotating ring groove, the inner rotating ring groove is arranged on the surface of the inner rotating ring, an inner ring limit block is fixed inside the inner rotating ring groove, and an inner rotating shaft is fixed on the inner ring limit block;

[0012] The welding structure comprises an upper follow-up slider and a lower follow-up slider, wherein an upper electric rod is mounted on the upper follow-up slider, an upper welding gun is mounted on the bottom end of the upper electric rod, a lower electric rod is mounted on the lower follow-up slider, and a lower welding gun is mounted on the top end of the lower electric rod.

[0013] Preferably, the front and rear groups of the outer forward and reverse motors are symmetrically arranged, and the left and right groups of the inner forward and reverse motors are symmetrically arranged.

[0014] Preferably, the output ends of the front and rear groups of outer forward and reverse motors are respectively fixedly connected to the front and rear groups of outer rotating shafts of the outer rotating ring, and the output ends of the left and right groups of inner forward and reverse motors are respectively fixedly connected to the left and right groups of inner rotating shafts of the inner rotating ring.

[0015] Preferably, the outer rotating ring is located outside the inner rotating ring, and a gap is left between the outer rotating ring and the inner rotating ring, and the axes of the outer rotating ring and the inner rotating ring are arranged perpendicular to each other.

[0016] Preferably, the outer swivel ring groove divides the outer swivel ring into two, the outer ring limit block fixes the two outer swivel rings together, the inner swivel ring groove divides the inner swivel ring into two, and the inner ring limit block fixes the two inner swivel rings together.

[0017] Preferably, the follow-up upper slider and the follow-up lower slider are both composed of two groups of I-shaped blocks, and the two groups of I-shaped blocks are staggered at 90 degrees, the outer I-shaped block is slidably connected to the outer rotating ring groove, and the inner I-shaped block is slidably connected to the inner rotating ring groove.

[0018] Preferably, the follow-up upper slider is located above the outer rotating ring and the inner rotating ring, the follow-up lower slider is located below the outer rotating ring and the inner rotating ring, and the upper welding gun and the lower welding gun are connected to an external welding machine via a connecting line.

[0019] Preferably, the clamping bracket is located between the upper welding gun and the lower welding gun, and the clamping structure comprises a horizontal forward and reverse motor and a vertical forward and reverse motor, the horizontal forward and reverse motor is installed on the left and right sides of the clamping bracket, and the vertical forward and reverse motor is installed on the front and back sides of the clamping bracket, a horizontal screw rod is fixed between the output ends of the two groups of horizontal forward and reverse motors, and a vertical screw rod is fixed between the output ends of the two groups of vertical forward and reverse motors, a slide groove is opened on the upper side surface of the clamping bracket, a horizontal slide slides inside the slide groove in the left and right directions, and a vertical slide slides inside the slide groove in the front and back directions, a horizontal electric rod is installed inside the horizontal slide, a horizontal clamping plate is fixed at one inner end of the horizontal electric rod, a vertical electric rod is installed inside the vertical slide, and a vertical clamping plate is fixed at one inner end of the vertical electric rod, and rectangular hardware is clamped and fixed in the horizontal clamping plate and the vertical clamping plate.

[0020] Preferably, the transverse screw rod passes through the transverse slide and is threadedly connected to the transverse slide, and the vertical screw rod passes through the vertical slide and is threadedly connected to the vertical slide.

[0021] Preferably, the transverse clamping plate and the vertical clamping plate are both right-angled plates, and the transverse clamping plate and the vertical clamping plate are compatible with rectangular hardware.

[0022] (III) Beneficial effects

[0023] The present invention provides a hardware welding robot having the following beneficial effects:

[0024] 1. By placing the rectangular hardware on the horizontal clamping plate and the vertical clamping plate, the horizontal electric rod can drive the front and rear sets of horizontal clamping plates to approach each other, so that the front and rear ends of the rectangular hardware can be clamped and fixed, and the vertical electric rod can drive the left and right sets of vertical clamping plates to approach each other, so that the left and right ends of the rectangular hardware can be clamped and fixed. Therefore, rectangular hardware of different sizes can be processed and quickly clamped and fixed.

[0025] 2. When it is necessary to weld the upper and lower surfaces and the front and back surfaces of the rectangular hardware, the rectangular hardware is clamped and fixed separately by the left and right sets of vertical clamping plates. The inner forward and reverse motor can drive the inner rotating ring to rotate forward and reversely through the inner rotating shaft, and can drive the follow-up upper slider and the follow-up lower slider to move along the circumferential direction of the outer rotating ring, so that the follow-up upper slider can drive the upper welding gun and the follow-up lower slider can drive the lower welding gun to move around the circumferential direction of the rectangular hardware. At this time, the upper electric rod can drive the upper welding gun close to the rectangular hardware, and the lower electric rod can drive the lower welding gun close to the rectangular hardware, so that the upper and lower surfaces and the front and back surfaces of the rectangular hardware can be welded in different positions in multiple directions.

[0026] 3. When welding is required on the upper and lower surfaces and the left and right surfaces of rectangular hardware, the outer forward and reverse motor can drive the outer rotating ring to rotate forward and reversely through the outer rotating shaft, and can drive the follow-up upper slider and the follow-up lower slider to move along the circumferential direction of the inner rotating ring, so that the follow-up upper slider can drive the upper welding gun and the follow-up lower slider can drive the lower welding gun to move around the circumferential direction of the rectangular hardware. At this time, the upper electric rod can drive the upper welding gun close to the rectangular hardware, and the lower electric rod can drive the lower welding gun close to the rectangular hardware, so that multi-directional welding processing can be performed on different positions on the upper and lower surfaces and the left and right surfaces of the rectangular hardware. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a diagram showing the combination of the structural clamping bracket, the outer rotating ring and the inner rotating ring of the present invention;

[0029] Figure 3 This is a schematic diagram of the structural clamping bracket of the present invention;

[0030] Figure 4 It is a combined diagram of the outer rotating ring and the inner rotating ring of the structure of the present invention;

[0031] Figure 5 This is an exploded view of the outer swivel ring and the inner swivel ring of the structure of the present invention;

[0032] Figure 6 It is a partial cross-sectional view of the outer swivel ring and the inner swivel ring of the structure of the present invention;

[0033] Figure 7 It is a schematic diagram of the follow-up upper slider of the structure of the present invention.

[0034] Among them, 1, bottom frame; 101, side bracket; 102, external forward and reverse motor; 103, internal forward and reverse motor; 2, clamping bracket; 201, horizontal forward and reverse motor; 202, vertical forward and reverse motor; 203, horizontal screw rod; 204, vertical screw rod; 205, slide; 206, horizontal slide; 207, vertical slide; 208, horizontal electric rod; 209, horizontal clamping plate; 210, vertical electric rod; 211 , vertical clamping plate; 212, rectangular hardware; 3, outer swivel; 301, outer swivel groove; 302, outer ring limit block; 303, outer shaft; 4, inner swivel; 401, inner swivel groove; 402, inner ring limit block; 403, inner shaft; 5, welding structure; 501, follow-up upper slider; 502, follow-up lower slider; 503, upper electric rod; 504, upper welding gun; 505, lower electric rod; 506, lower welding gun. DETAILED DESCRIPTION

[0035] The present invention is further described below in conjunction with the accompanying drawings and embodiments. In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] See also Figure 1-Figure 7 The present invention provides a technical solution: a hardware welding robot, comprising a base frame 1, a clamping bracket 2 is fixed on the top of the base frame 1, a clamping structure for fixing a rectangular hardware workpiece is arranged in the clamping bracket 2, and two sets of outer rotating rings 3 and inner rotating rings 4 with mutually perpendicular axes are arranged on the outside of the hardware workpiece, and welding structures 5 for welding the hardware workpiece are arranged on the outer rotating ring 3 and the inner rotating ring 4;

[0037] The chassis 1 includes side brackets 101, which are fixed on four groups of side surfaces of the rectangular chassis 1. External forward and reverse motors 102 are installed in the front and rear groups of side brackets 101, and internal forward and reverse motors 103 are installed in the left and right groups of side brackets 101.

[0038] The outer rotating ring 3 comprises an outer rotating ring groove 301, which is provided on the surface of the outer rotating ring 3, an outer ring stopper 302 is fixed inside the outer rotating ring groove 301, and an outer rotating shaft 303 is fixed on the outer ring stopper 302;

[0039] The inner rotating ring 4 comprises an inner rotating ring groove 401, which is provided on the surface of the inner rotating ring 4, an inner ring stopper 402 is fixed inside the inner rotating ring groove 401, and an inner rotating shaft 403 is fixed on the inner ring stopper 402;

[0040] The welding structure 5 includes an upper follow-up slider 501 and a lower follow-up slider 502. An upper electric rod 503 is installed on the upper follow-up slider 501. An upper welding gun 504 is installed at the bottom of the upper electric rod 503. A lower electric rod 505 is installed on the lower follow-up slider 502. A lower welding gun 506 is installed at the top of the lower electric rod 505.

[0041] In this embodiment, the front and rear two groups of external forward and reverse motors 102 are symmetrically arranged, and the left and right two groups of internal forward and reverse motors 103 are symmetrically arranged;

[0042] Specifically, the output ends of the front and rear two groups of external forward and reverse motors 102 are fixedly connected to the front and rear two groups of external rotating shafts 303, so that the outer rotating ring 3 can be supported for rotation. The output ends of the left and right two groups of internal forward and reverse motors 103 are fixedly connected to the left and right two groups of internal rotating shafts 403, so that the inner rotating ring 4 can be supported for rotation.

[0043] In this embodiment, the output ends of the front and rear two groups of outer forward and reverse motors 102 are respectively fixedly connected to the front and rear two groups of outer shafts 303 of the outer rotating ring 3, and the output ends of the left and right two groups of inner forward and reverse motors 103 are respectively fixedly connected to the left and right two groups of inner shafts 403 of the inner rotating ring 4;

[0044] Specifically, the outer forward and reverse motor 102 can drive the outer rotating ring 3 to rotate through the outer rotating shaft 303 , and the inner forward and reverse motor 103 can drive the inner rotating ring 4 to rotate through the inner rotating shaft 403 .

[0045] In this embodiment, the outer rotating ring 3 is located outside the inner rotating ring 4, and a gap is left between the outer rotating ring 3 and the inner rotating ring 4, and the axes of the outer rotating ring 3 and the inner rotating ring 4 are arranged perpendicular to each other;

[0046] Specifically, when the outer rotating ring 3 rotates, it can drive the follow-up upper slider 501 and the follow-up lower slider 502 to move inside the inner rotating ring 4. When the inner rotating ring 4 rotates, it can also drive the follow-up upper slider 501 and the follow-up lower slider 502 to move inside the outer rotating ring 3.

[0047] In this embodiment, the outer swivel groove 301 divides the outer swivel ring 3 into two parts, the outer ring limit block 302 fixes the two parts of the outer swivel ring 3 together, the inner swivel groove 401 divides the inner swivel ring 4 into two parts, and the inner ring limit block 402 fixes the two parts of the inner swivel ring 4 together;

[0048] Specifically, it is convenient for the follow-up upper slider 501 and the follow-up lower slider 502 to move between the two groups of outer ring limit blocks 302 inside the outer rotating ring groove 301, and it is convenient for the follow-up upper slider 501 and the follow-up lower slider 502 to move between the two groups of inner ring limit blocks 402 in the inner rotating ring groove 401, so that the upper welding gun 504 and the lower welding gun 506 can weld and process both sides of the rectangular hardware 212 at the same time.

[0049] In this embodiment, the follow-up upper slider 501 and the follow-up lower slider 502 are both composed of two groups of I-shaped blocks, and the two groups of I-shaped blocks are staggered at 90 degrees, the outer I-shaped block is slidably connected to the outer rotating ring groove 301, and the inner I-shaped block is slidably connected to the inner rotating ring groove 401;

[0050] Specifically, when the outer rotating ring 3 or the inner rotating ring 4 rotates at the same time, it can drive the follow-up upper slider 501 and the follow-up lower slider 502 to move simultaneously, and can move the follow-up upper slider 501 and the follow-up lower slider 502 to different positions outside the rectangular hardware 212, so that the upper welding gun 504 and the lower welding gun 506 can perform welding processing on different positions on the surface of the rectangular hardware 212.

[0051] In this embodiment, the follow-up upper slider 501 is located above the outer rotating ring 3 and the inner rotating ring 4, the follow-up lower slider 502 is located below the outer rotating ring 3 and the inner rotating ring 4, and the upper welding gun 504 and the lower welding gun 506 are connected to the external welding machine through a connecting line;

[0052] Specifically, when the outer rotating ring 3 or the inner rotating ring 4 rotates, it can simultaneously drive the follow-up upper slider 501 and the follow-up lower slider 502 to move, so that the upper welding gun 504 and the lower welding gun 506 can also move simultaneously, so that the upper welding gun 504 and the lower welding gun 506 can simultaneously perform welding processing on different positions of the rectangular hardware 212.

[0053] In this embodiment, the clamping bracket 2 is located between the upper welding gun 504 and the lower welding gun 506, and the clamping structure includes a horizontal forward and reverse motor 201 and a vertical forward and reverse motor 202. The horizontal forward and reverse motor 201 is installed on the left and right sides of the clamping bracket 2, and the vertical forward and reverse motor 202 is installed on the front and back sides of the clamping bracket 2. A horizontal screw rod 203 is fixed between the output ends of the two groups of horizontal forward and reverse motors 201, and a vertical screw rod 204 is fixed between the output ends of the two groups of vertical forward and reverse motors 202. The upper side surface of the clamping bracket 2 is provided with a sliding Slot 205, a horizontal slide 206 slides inside the left-right slide 205, a vertical slide 207 slides inside the front-back slide 205, a horizontal electric rod 208 is installed inside the horizontal slide 206, a horizontal clamping plate 209 is fixed to one end of the inside of the horizontal electric rod 208, a vertical electric rod 210 is installed inside the vertical slide 207, a vertical clamping plate 211 is fixed to one end of the inside of the vertical electric rod 210, and a rectangular hardware 212 is clamped and fixed inside the horizontal clamping plate 209 and the vertical clamping plate 211;

[0054] Specifically, the horizontal electric rod 208 can drive the front and rear groups of horizontal clamping plates 209 to approach each other, and the vertical electric rod 210 can drive the left and right groups of vertical clamping plates 211 to approach each other. Therefore, the rectangular hardware 212 can be clamped and fixed at the same time by the front and rear groups of horizontal clamping plates 209 and the left and right groups of vertical clamping plates 211, or the rectangular hardware 212 can be clamped and fixed individually.

[0055] In this embodiment, the horizontal screw rod 203 passes through the horizontal slide 206 and is threadedly connected to the horizontal slide 206, and the vertical screw rod 204 passes through the vertical slide 207 and is threadedly connected to the vertical slide 207;

[0056] Specifically, when it is necessary to weld the upper and lower surfaces and the front and back surfaces of the rectangular hardware 212, the horizontal electric rod 208 is retracted to separate the horizontal clamping plate 209 from the rectangular hardware 212, and the horizontal forward and reverse motor 201 is started to drive the horizontal screw rod 203 to rotate, and then the horizontal screw rod 203 can drive the horizontal slide 206 to move, so that the horizontal slide 206 can drive the horizontal electric rod 208 to move to the non-center side of the clamping bracket 2. Similarly, when it is necessary to weld the upper and lower surfaces and the left and right surfaces of the rectangular hardware 212, the vertical electric rod 210 is retracted to separate the vertical clamping plate 211 from the rectangular hardware 212, and started, the vertical forward and reverse motor 202 can drive the vertical screw rod 204 to rotate, and then the vertical screw rod 204 can drive the vertical slide 207 to move, so that the vertical slide 207 can drive the vertical electric rod 210 to move to the non-center side of the clamping bracket 2.

[0057] In this embodiment, the horizontal clamping plate 209 and the vertical clamping plate 211 are both right-angled plates, and the horizontal clamping plate 209 and the vertical clamping plate 211 are compatible with the rectangular hardware 212;

[0058] Specifically, the front and rear ends of the rectangular hardware 212 can be clamped and fixed separately from the front and rear sides by the horizontal clamping plate 209, and the left and right ends of the rectangular hardware 212 can be clamped and fixed separately from the left and right sides by the vertical clamping plate 211.

[0059] The working principle and use process of the present invention are as follows: by placing the rectangular hardware 212 on the horizontal clamping plate 209 and the vertical clamping plate 211, the horizontal electric rod 208 can drive the front and rear groups of the horizontal clamping plates 209 to approach each other, so that the front and rear ends of the rectangular hardware 212 can be clamped and fixed, and the vertical electric rod 210 can drive the left and right groups of the vertical clamping plates 211 to approach each other, so that the left and right ends of the rectangular hardware 212 can be clamped and fixed, so that the rectangular hardware 212 of different sizes can be processed and quickly clamped and fixed. When the upper and lower surfaces and the front and rear surfaces of the rectangular hardware 212 need to be welded, the horizontal electric rod 208 is retracted to make the horizontal clamping plate 209 separate from the rectangular hardware 212. Then, the transverse electric rod 208 is moved to the non-center side of the clamping bracket 2 through the transverse slide 206 to prevent the subsequent transverse electric rod 208 from interfering with the upper welding gun 504 and the lower welding gun 506. At this time, the rectangular hardware 212 is clamped and fixed by the left and right groups of vertical clamping plates 211. At this time, the left and right groups of inner forward and reverse motors 103 are started, and then the inner forward and reverse motors 103 can drive the inner rotating ring 4 to rotate forward and reverse through the inner rotating shaft 403, and in the process of the forward and reverse rotation of the inner rotating ring 4, the outer rotating ring 3 is kept stationary, and the follow-up upper slider 501 and the follow-up lower slider 502 can be driven to move along the circumferential direction of the outer rotating ring 3, so that the follow-up upper slider 501 can drive the upper welding gun 504 and the follow-up lower slider 502 The lower welding gun 506 can be driven to move in a circular direction around the rectangular hardware 212. At this time, the upper electric rod 503 can drive the upper welding gun 504 to approach the rectangular hardware 212, and the lower electric rod 505 can drive the lower welding gun 506 to approach the rectangular hardware 212, so that the upper and lower surfaces and the front and back surfaces of the rectangular hardware 212 can be welded in multiple directions. When the upper and lower surfaces and the left and right surfaces of the rectangular hardware 212 need to be welded, the vertical electric rod 210 is retracted to make the vertical clamping plate 211 separate from the rectangular hardware 212, and then the vertical electric rod 210 is moved to the non-center side of the clamping bracket 2 through the vertical slide 207 to avoid the subsequent vertical electric rod 210 and the upper welding gun 504 and the lower welding gun 5 06 interferes, and the rectangular hardware 212 is clamped and fixed by the front and rear two groups of horizontal clamping plates 209. At this time, the front and rear two groups of external forward and reverse motors 102 are started, and then the external forward and reverse motors 102 can drive the outer rotating ring 3 to rotate in the forward and reverse directions through the outer rotating shaft 303, and in the process of the outer rotating ring 3 rotating in the forward and reverse directions, the inner rotating ring 4 is kept stationary, and the follow-up upper slider 501 and the follow-up lower slider 502 can be driven to move along the circumferential direction of the inner rotating ring 4, so that the follow-up upper slider 501 can drive the upper welding gun 504 and the follow-up lower slider 502 can drive the lower welding gun 506 to move around the rectangular hardware 212 in the circumferential direction. At this time, the upper electric rod 503 can drive the upper welding gun 504 to approach the rectangular hardware 212,The lower electric rod 505 can drive the lower welding gun 506 to approach the rectangular hardware 212, so that the upper and lower surfaces and the left and right surfaces of the rectangular hardware 212 can be welded in multiple directions. In addition, when the outer rotating ring 3 and the inner rotating ring 4 are rotated to the inclined position, the upper slider 501 and the lower slider 502 can be driven to move toward the vertical edge of the rectangular hardware 212 at the same time, so that the upper slider 501 can drive the upper welding gun 504 to move through the upper electric rod 503, and the lower slider 502 can also drive the lower welding gun 506 to move through the lower electric rod 505, so that the different positions on the surface of the rectangular hardware 212 can be welded in multiple directions.

[0060] 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 metal welding robot, comprising a base frame (1), characterized in that: A clamping bracket (2) is fixed to the top of the base frame (1), a clamping structure for fixing a rectangular hardware workpiece is arranged inside the clamping bracket (2), and two sets of outer rotating rings (3) and inner rotating rings (4) with mutually perpendicular axes are arranged on the outside of the hardware workpiece, and welding structures (5) for welding the hardware workpiece are arranged on the outer rotating rings (3) and the inner rotating rings (4); The base frame (1) comprises side brackets (101), the side brackets (101) being fixed on four groups of side surfaces of the rectangular base frame (1), the front and rear groups of the side brackets (101) being provided with external forward and reverse motors (102), and the left and right groups of the side brackets (101) being provided with internal forward and reverse motors (103); The outer rotating ring (3) comprises an outer rotating ring groove (301), wherein the outer rotating ring groove (301) is provided on the surface of the outer rotating ring (3), an outer ring limit block (302) is fixed inside the outer rotating ring groove (301), and an outer rotating shaft (303) is fixed on the outer ring limit block (302); The inner rotating ring (4) comprises an inner rotating ring groove (401), wherein the inner rotating ring groove (401) is provided on the surface of the inner rotating ring (4), an inner ring limit block (402) is fixed inside the inner rotating ring groove (401), and an inner rotating shaft (403) is fixed on the inner ring limit block (402); The welding structure (5) comprises an upper follow-up slider (501) and a lower follow-up slider (502); an upper electric rod (503) is mounted on the upper follow-up slider (501); an upper welding gun (504) is mounted at the bottom end of the upper electric rod (503); a lower electric rod (505) is mounted on the lower follow-up slider (502); and a lower welding gun (506) is mounted at the top end of the lower electric rod (505).

2. A hardware welding robot according to claim 1, characterized in that: The front and rear groups of the outer forward and reverse motors (102) are symmetrically arranged, and the left and right groups of the inner forward and reverse motors (103) are symmetrically arranged.

3. A hardware welding robot according to claim 1, characterized in that: The output ends of the front and rear groups of the outer forward and reverse motors (102) are respectively fixedly connected to the front and rear groups of the outer rotating shafts (303) of the outer rotating ring (3), and the output ends of the left and right groups of the inner forward and reverse motors (103) are respectively fixedly connected to the left and right groups of the inner rotating shafts (403) of the inner rotating ring (4).

4. A hardware welding robot according to claim 1, characterized in that: The outer rotating ring (3) is located outside the inner rotating ring (4), and a gap is left between the outer rotating ring (3) and the inner rotating ring (4). The axes of the outer rotating ring (3) and the inner rotating ring (4) are arranged perpendicular to each other.

5. The hardware welding robot according to claim 1, characterized in that: The outer rotating ring groove (301) divides the outer rotating ring (3) into two parts, the outer ring limiting block (302) fixes the two parts of the outer rotating ring (3) to each other, the inner rotating ring groove (401) divides the inner rotating ring (4) into two parts, and the inner ring limiting block (402) fixes the two parts of the inner rotating ring (4) to each other.

6. A hardware welding robot according to claim 1, characterized in that: The upper follower slider (501) and the lower follower slider (502) are both composed of two groups of I-shaped blocks, and the two groups of I-shaped blocks are staggered at 90 degrees, the outer I-shaped blocks are slidably connected to the outer rotating ring groove (301), and the inner I-shaped blocks are slidably connected to the inner rotating ring groove (401).

7. A hardware welding robot according to claim 1, characterized in that: The follow-up upper slider (501) is located above the outer rotating ring (3) and the inner rotating ring (4), the follow-up lower slider (502) is located below the outer rotating ring (3) and the inner rotating ring (4), and the upper welding gun (504) and the lower welding gun (506) are connected to an external welding machine via a connecting line.

8. The hardware welding robot according to claim 1, characterized in that: The clamping bracket (2) is located between the upper welding gun (504) and the lower welding gun (506), and the clamping structure comprises a horizontal forward and reverse motor (201) and a vertical forward and reverse motor (202), wherein the horizontal forward and reverse motor (201) is installed on the left and right sides of the clamping bracket (2), and the vertical forward and reverse motor (202) is installed on the front and rear sides of the clamping bracket (2), a horizontal screw rod (203) is fixed between the output ends of the two groups of the horizontal forward and reverse motors (201), and a vertical screw rod (204) is fixed between the output ends of the two groups of the vertical forward and reverse motors (202), and a slide groove (203) is provided on the upper side surface of the clamping bracket (2). 5), a horizontal slide (206) slides inside the slide groove (205) in the left-right direction, and a vertical slide (207) slides inside the slide groove (205) in the front-back direction, a horizontal electric rod (208) is installed inside the horizontal slide (206), a horizontal clamping plate (209) is fixed to one end of the inner side of the horizontal electric rod (208), a vertical electric rod (210) is installed inside the vertical slide (207), a vertical clamping plate (211) is fixed to one end of the inner side of the vertical electric rod (210), and rectangular hardware (212) is clamped and fixed inside the horizontal clamping plate (209) and the vertical clamping plate (211).

9. A hardware welding robot according to claim 8, characterized in that: The transverse screw rod (203) passes through the transverse slide (206) and is threadedly connected to the transverse slide (206), and the vertical screw rod (204) passes through the vertical slide (207) and is threadedly connected to the vertical slide (207).

10. The hardware welding robot according to claim 8, characterized in that: The transverse clamping plate (209) and the vertical clamping plate (211) are both right-angled plates, and the transverse clamping plate (209) and the vertical clamping plate (211) are compatible with the rectangular hardware (212).

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