Automatic assembly equipment for welding workpieces

Abstract

An automated welding workpiece assembly equipment includes a work table and a frame. The work table is provided with a first conveyor line for placing a first workpiece and a second conveyor line for placing a second workpiece. The work table is also provided with a first robot for clamping the first workpiece and a transfer mechanism for clamping the second workpiece. The work table is also provided with a second robot. The second robot is provided with a welding gun and a detector for detecting the pass of the second workpiece. The detector and the welding gun are respectively connected to the second robot part. The work table is also provided with a grinding mechanism. The frame is provided with a laser marking mechanism and a visual camera mechanism for detecting the pass of the first workpiece. The automated welding workpiece assembly equipment of the present invention has multiple process functions through the above-mentioned equipment, and integrates detection, assembly, welding and grinding, laser marking and other processes into one, with high integration and high space utilization.

Description

Technical Field

[0001] The invention relates to a workpiece welding device, in particular to an automatic workpiece welding assembly device. Background Art

[0002] In recent years, the domestic automated handling welding equipment has developed rapidly, but due to cost and technical constraints, most of the equipment is simple fixed welding equipment. Low-value products do not require strict combination welding accuracy, and it is sufficient as long as the performance can meet production needs.

[0003] Some other manufacturers, like the applicant, provide welding equipment that includes weld tracking and has greater performance advantages. However, the assembly deviation caused by the deviation in the incoming material size is difficult to correct, making it difficult for the equipment to meet the requirements of high-precision assembly welding. Therefore, the applicant is also actively developing assembly welding technology equipment that meets the requirements of high-precision assembly welding.

[0004] According to the research and development personnel of the applicant, the current metal products that require high-precision assembly welding (such as golf head welding) mainly use manual spot welding, which not only has high labor intensity, but also has low welding precision and low yield rate. Therefore, new equipment and technology are urgently needed to improve its production efficiency. Because the product materials are mostly die-casting and forging parts, the incoming materials have certain deformation and dimensional deviation. Summary of the invention

[0005] The purpose of the present invention is to provide an automated assembly welding workpiece equipment, which has multiple process functions, integrates detection, assembly, welding and grinding, laser marking and other processes, has high integration and high space utilization, so as to overcome the shortcomings of the prior art.

[0006] An automated assembly welding workpiece equipment designed for this purpose comprises a work table and a frame. A first conveyor line for placing a first workpiece and a second conveyor line for placing a second workpiece are arranged on the work table. A first robot for clamping the first workpiece and a transfer mechanism for clamping the second workpiece are also arranged on the work table. A second robot is also arranged on the work table. A welding gun and a detector for detecting the qualification of the second workpiece are arranged on the second robot. The detector and the welding gun are respectively connected to the second robot part. A grinding mechanism is also arranged on the work table. A laser marking mechanism and a visual camera mechanism for detecting the qualification of the first workpiece are arranged on the frame. Through the above-mentioned arrangement, the equipment has multiple process functions, integrates detection, assembly, welding and grinding, laser marking and other processes, has high integration and high space utilization.

[0007] The second robot is provided with a connection seat for connecting the welding gun and the detector, a connection plate is provided at the bottom of the connection seat, the detector is partially fixed on the connection plate, a circuit box for arranging the welding gun and the detector circuit is provided at the bottom of the connection plate, a fixed base is provided at the bottom of the circuit box, the welding gun is connected to the fixed base, and a blow fixing seat is provided between the welding gun and the fixed base. The second robot is driven to move to the second conveyor line through the detector, and then the detector detects whether the second workpiece is qualified. If it is qualified, the transfer mechanism grabs the second workpiece, which effectively improves the welding accuracy of the assembly between the workpieces, and can achieve that the product size error is within 0.1mm after the assembly and welding between the workpieces.

[0008] The grinding mechanism includes a supporting base with a rotating shaft, and a grinding wheel is arranged on the rotating shaft; the supporting base is provided with a rotating shaft fixing seat, and a bearing is arranged on the rotating shaft fixing seat, the rotating shaft passes through the rotating shaft fixing seat and is inserted into the bearing, a dustproof retaining ring is arranged on the opening of the rotating shaft fixing seat, and a fixing groove for installing an oil seal is arranged on the dustproof retaining ring, and a shaft sleeve, a front retaining ring, and a rear retaining ring are arranged on the rotating shaft, and the shaft sleeve, the front retaining ring, the rear retaining ring, and the oil seal are all sleeved on the rotating shaft, and the grinding wheel is located between the front retaining ring and the rear retaining ring, and the rear retaining ring is in contact with the shaft sleeve.

[0009] The transfer mechanism includes a pillar, a supporting plate arranged on the pillar, and a transverse motion platform arranged on the supporting plate. The transfer mechanism also includes a lifting platform and a grabbing part connected to the lifting platform. A clamping groove is provided on the grabbing part. A transverse motion structure is provided between the lifting platform and the transverse motion platform. The grabbing part on the lifting platform reciprocates along the transverse motion platform through the transverse motion structure. A lifting structure connected to the grabbing part is provided on the lifting platform. The grabbing part moves up and down along the lifting platform through the lifting structure. An elastic telescopic movable structure is provided between the grabbing part and the lifting structure. The transfer mechanism grabs the second workpiece through the lifting platform, the transverse motion platform and the grabbing part.

[0010] The first conveyor line includes a first frame of a first conveyor platform, which is arranged on a work surface through sliders and slide rails for reciprocating motion. The first conveyor platform is provided with a plurality of positioning bases, the positioning bases are provided with positioning pillars for cooperating with the first workpiece, the positioning bases are provided with clamping structures for clamping the first workpiece, the positioning bases are also provided with valves for controlling the activation of the clamping structures, and one side of the positioning base is provided with a receiving cavity for placing the assembled welding workpieces.

[0011] The first conveyor line and the second conveyor line are arranged in two layers, and a baffle is arranged on the outside of the accommodating cavity. The second conveyor line includes a second frame supporting the second conveyor platform. The second frame is arranged on the work table through sliders and slide rails for reciprocating motion. The second conveyor platform is provided with a plurality of accommodating grooves for placing the second workpiece.

[0012] The worktable is also provided with a secondary positioning mechanism for performing secondary positioning of the first workpiece; the secondary positioning mechanism comprises a first support seat, a fixed plate fixedly connected to the first support seat, a first positioning column and an elastically retractable plug shaft are arranged on the fixed plate, a hole matching the plug shaft is arranged on the first workpiece, the secondary positioning mechanism also comprises a swing cylinder, a swing cylinder body is movably connected to a part of the fixed plate; a swing plate is arranged between the swing cylinder piston rod and another part of the fixed plate, a second positioning column is arranged on the swing plate, and the swing plate part is matched and connected with the swing cylinder piston rod; another part of the swing plate is movably connected to another part of the fixed plate, the swing cylinder piston rod drives the second positioning column of the swing plate to move away from or approach the first positioning column, and the second positioning column approaches the first positioning column to form a first fixed area for fixing the first workpiece; or, the secondary positioning mechanism comprises a second support base, a positioning plate elastically retractably arranged on the second support base, an L-shaped first positioning block and a second positioning block are arranged on the positioning plate, a positioning inclined surface is arranged on the second positioning block, and a second fixed area for fixing the first workpiece is formed between the positioning inclined surface of the second positioning block and the L-shaped first positioning block.

[0013] The work surface is provided with a discharge trough for placing unqualified workpieces, and the bottom of the work surface is provided with a workbench base for placing electrical components, gas circuits and circuit wire tubes. The workbench base is provided with an unqualified workpiece accommodating cavity corresponding to the discharge trough. The first robot grabs the first workpiece and moves it to the visual camera mechanism. The visual camera mechanism identifies whether the surface of the first workpiece is qualified and transmits the information to the control system on the equipment. The control system compares the data entered by the welding process with the information transmitted by the visual camera mechanism, and the control system determines whether the first workpiece is qualified. If qualified, the first robot grabs the first workpiece to the assembly welding position; if unqualified, the first robot grabs the first workpiece to the discharge trough.

[0014] The automated assembly and welding workpiece equipment also includes a laser welder that cooperates with the second robot welding gun. A solenoid valve group that cooperates with the electrical components is provided on the workbench. A protective cover is provided around the solenoid valve group. The protective cover plays a protective role and a heat dissipation gap is provided on the protective cover. A wiring profile is provided between the laser welder and the workbench base, and a wiring groove is provided on the wiring profile.

[0015] The first robot is provided with an internal support clamp structure for clamping the first workpiece; an auxiliary mechanism is provided on the worktable surface corresponding to the unloading direction of the assembled welding workpiece, the auxiliary mechanism includes an auxiliary mechanism support seat, a loosening cylinder and a loosening positioning block are provided on the auxiliary mechanism support seat, a loosening clamping block is provided at one end of the loosening cylinder piston rod, the loosening clamping block is cooperatively connected with the loosening cylinder piston rod, and the loosening cylinder piston rod drives the loosening clamping block to approach or move away from the loosening positioning block.

[0016] The beneficial effects of the present invention are as follows:

[0017] The frame is provided with a visual camera mechanism for measuring the qualification of the first workpiece, which is a 3D camera. The second robot is provided with a detector for detecting the qualification of the second workpiece. The detector has the functions of measuring distance, detecting the thickness of the second workpiece and calculating the curvature of the second workpiece. Therefore, this equipment has the characteristics of measuring product accuracy and position information using CCD visual detectors and high-precision sensors. The equipment has multi-process functions, integrating detection, assembly, welding and grinding, laser marking and other processes, with high integration and high space utilization. It also uses vision to guide robots to accurately assemble products, and uses 3D vision to communicate with robots to accurately assemble and weld products.

[0018] Before the first workpiece and the second workpiece are welded and assembled, they are first inspected to eliminate unqualified workpieces, so that the product size error can be within 0.1mm after the workpieces are assembled and welded.

[0019] This equipment is compatible with multiple models of products and products of different materials (titanium alloy, stainless steel).

[0020] The design principle of this equipment can be applied to the same type of golf heads, or the fields of automated equipment such as handling, assembly, testing, and welding of metal products.

[0021] In summary, this equipment is a highly integrated, multifunctional intelligent assembly welding equipment, which can not only meet the process requirements of product assembly and welding, but also relatively reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of an automatic assembly welding workpiece equipment according to an embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of the structure of another orientation of the automatic assembly welding workpiece equipment according to one embodiment of the present invention.

[0024] Figure 3 This is a schematic structural diagram of a hidden dust cover of an automated assembly equipment for welding workpieces according to an embodiment of the present invention.

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of a work surface according to an embodiment of the present invention.

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of a first robot according to an embodiment of the present invention.

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of a second robot according to an embodiment of the present invention.

[0028] Figure 7 This is a schematic structural diagram of a welding gun and a detector on a second robot according to an embodiment of the present invention.

[0029] Figure 8 The figure is a schematic diagram of the structure of a grinding mechanism according to an embodiment of the present invention.

[0030] Fig. 9 It is a schematic diagram of the cross-sectional structure of a grinding mechanism according to an embodiment of the present invention.

[0031] Fig.10 It is a schematic structural diagram of one solution of the secondary positioning mechanism according to an embodiment of the present invention.

[0032] Fig.11 It is a structural schematic diagram of an auxiliary mechanism according to an embodiment of the present invention.

[0033] Fig.12 It is a schematic diagram of another structural scheme of the secondary positioning mechanism of one embodiment of the present invention.

[0034] Fig.13 This is a schematic diagram of another structural position of another solution of the secondary positioning mechanism of one embodiment of the present invention.

[0035] Fig.14 It is a structural schematic diagram of a transfer mechanism according to an embodiment of the present invention.

[0036] Fig.15 It is a structural schematic diagram of a transfer mechanism for grabbing a workpiece for welding according to an embodiment of the present invention.

[0037] Fig.16 The figure is a schematic structural diagram of a laser marking mechanism according to an embodiment of the present invention.

[0038] Fig.17 It is a structural schematic diagram of a visual camera mechanism according to an embodiment of the present invention.

[0039] Fig.18 It is a partial structural schematic diagram of the first conveyor line according to an embodiment of the present invention.

[0040] Fig.19 It is a partial structural schematic diagram of the second conveyor line according to an embodiment of the present invention. DETAILED DESCRIPTION

[0041] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0042] See also Figure 1-Figure 3, an automated assembly welding workpiece equipment, including a work table 1 and a frame 2. The work table 1 is provided with a first conveyor line 3 for placing a first workpiece and a second conveyor line 4 for placing a second workpiece. The work table 1 is also provided with a first robot 5 for clamping the first workpiece and a transfer mechanism 6 for clamping the second workpiece. The work table 1 is also provided with a second robot 7. The second robot 7 is provided with a welding gun and a detector 8 for detecting the qualification of the second workpiece. The detector 8 and the welding gun are respectively connected with parts of the second robot 7. The work table 1 is also provided with a grinding mechanism 9. The frame 2 is provided with a laser marking mechanism 10 and a visual camera mechanism 11 for detecting the qualification of the first workpiece.

[0043] In this embodiment, a plurality of plates forming dust covers are provided on the frame 2, hinges are provided between some of the plates and the frame 2, and some of the plates are opened and closed on the frame 2. Some of the plates are transparent; or some of the plates are provided with observation windows.

[0044] In this embodiment, the first workpiece is a golf head with a socket or a golf head shaft without a socket, and the second workpiece is a cover body assembled with the first workpiece.

[0045] In this embodiment, the laser marking mechanism 10 includes a laser head, and the laser marking mechanism 10 is fixed to the frame 2 through a first mounting plate. The visual camera mechanism 11 is a 3D camera, and the visual camera mechanism 11 is fixed to the frame 2 through a second mounting plate.

[0046] See also Figure 6 , Figure 7 The second robot 7 is provided with a connection seat 36 for connecting the welding gun and the detector 8. A connection plate 37 is provided at the bottom of the connection seat 36. The detector 8 is partially fixed on the connection plate 37. A circuit box 38 for arranging the circuits of the welding gun and the detector 8 is provided at the bottom of the connection plate 37. A fixed base 39 is provided at the bottom of the circuit box 38. The welding gun is connected to the fixed base 39. A blow fixing seat is provided between the welding gun and the fixed base 39. The second robot 7 is partially connected to the connection seat 36.

[0047] See also Figure 8 , Fig. 9 The grinding mechanism 9 includes a supporting base 41 provided with a rotating shaft 40, on which a grinding wheel 42 is provided; the supporting base 41 is provided with a rotating shaft fixing seat 43, on which a bearing is provided, the rotating shaft 40 passes through the rotating shaft fixing seat 43 and is inserted with the bearing, a dustproof retaining ring 44 is provided at the opening of the rotating shaft fixing seat 43, and a fixing groove for installing an oil seal 45 is provided on the dustproof retaining ring 44, and a shaft sleeve, a front retaining ring, and a rear retaining ring are provided on the rotating shaft 40, and the shaft sleeve, the front retaining ring, the rear retaining ring, and the oil seal 45 are all sleeved on the rotating shaft 40, and the grinding wheel 42 is located between the front retaining ring and the rear retaining ring, and the rear retaining ring is in contact with the shaft sleeve.

[0048] See also Fig.14 , Fig.15 The transfer mechanism 6 includes a pillar 30, a supporting plate 31 arranged on the pillar 30, and a transverse motion platform 32 arranged on the supporting plate 31. The transfer mechanism 6 also includes a lifting platform 33, a grabbing portion 34 connected to the lifting platform 33, a clamping groove 35 is provided on the grabbing portion 34, a transverse motion structure is provided between the lifting platform 33 and the transverse motion platform 32, and the grabbing portion 34 on the lifting platform 33 reciprocates along the transverse motion platform 32 through the transverse motion structure; a lifting structure connected to the grabbing portion 34 is provided on the lifting platform 33, and the grabbing portion 34 moves up and down along the lifting platform 33 through the lifting structure; an elastic telescopic movable structure is provided between the grabbing portion 34 and the lifting structure.

[0049] In this embodiment, the lateral motion structure and the lifting structure can both adopt the motor, the screw rod, and the nut movable block matched with the screw rod in the prior art.

[0050] Combination Figure 1-Figure 3 , see Fig.18 The first conveyor line 3 and the second conveyor line 4 are arranged in two layers, the upper and lower layers of the first conveyor line 3 both include a first frame of a first conveyor platform 46, the first frame is arranged on the work table 1 through sliders and slide rails for reciprocating motion, the first conveyor platform 46 is provided with a plurality of positioning bases 47, the positioning base 47 is provided with positioning pillars 49 for placing the first workpiece, the positioning base 47 is provided with a clamping structure for clamping the first workpiece, the positioning base 47 is also provided with a valve 48 for controlling the activation of the clamping structure, and a receiving cavity 50 for placing the assembled welding workpiece is provided on one side of the positioning base 47.

[0051] See also Fig.18 A blocking bar 51 is provided on the outer side of the accommodating cavity 50 .

[0052] See also Fig.19 The second conveyor line 4 includes a second frame supporting a second conveyor platform 52 on both the upper and lower layers. The second frame is arranged on the work surface 1 for reciprocating motion through sliders and rails. The second conveyor platform 52 is provided with a plurality of accommodating grooves 53 for placing the second workpiece.

[0053] See also Figure 1-Figure 3 A secondary positioning mechanism 12 is also provided on the work table 1 for performing secondary positioning on the first workpiece. Because the position of the first workpiece is approximate but not precise when the robot takes materials from the loading platform, the secondary positioning mechanism 12 performs secondary positioning.

[0054] See also Fig.12 , Fig.13The secondary positioning mechanism 12 includes a first support seat 18, a fixed plate 19 fixedly connected to the first support seat 18, a first positioning column 20 and an elastically retractable plug shaft 21 are provided on the fixed plate 19, and a hole matching the plug shaft 21 is provided on the first workpiece. The secondary positioning mechanism 12 also includes a swing cylinder 22, and the cylinder body of the swing cylinder 22 is movably connected to a part of the fixed plate 19; a swing plate 23 is provided between the piston rod of the swing cylinder 22 and another part of the fixed plate 19, and a second positioning column 24 is provided on the swing plate 23, and a part of the swing plate 23 is matched with the piston rod of the swing cylinder 22; another part of the swing plate 23 is movably connected to another part of the fixed plate 19, and the piston rod of the swing cylinder 22 drives the second positioning column 24 of the swing plate 23 to move away from or close to the first positioning column 20, and the second positioning column 24 is close to the first positioning column 20 to form a first fixed area for fixing the first workpiece.

[0055] In this embodiment, the first workpiece can be a golf head with a socket. After the first robot 5 takes the first workpiece (golf head) from the loading platform and puts it on the insertion shaft 21, the first robot 5 releases the clamp, and the swing cylinder 22 drives the swing plate 23 and the second positioning column 24 to rotate to a fixed position (the second positioning column 24 is close to the first positioning column 20). The first fixed area of ​​the golf head is formed between the second positioning column 24 and the first positioning column 20. In this way, the position of the irregular golf head is fixed, and the positioning is more accurate at this time.

[0056] In this embodiment, an insertion shaft base is provided between the fixed plate 19 and the insertion shaft 21, a groove for placing a compression spring is provided on the fixed plate 19, a guide portion is provided at the bottom of the insertion shaft base, and the compression spring is sleeved on the guide portion to allow the insertion shaft 21 to elastically expand and contract.

[0057] See also Fig.10 Alternatively, the secondary positioning mechanism 12 includes a second support base 25, a positioning plate 26 elastically and telescopically arranged on the second support base 25, an L-shaped first positioning block 27 and a second positioning block 28 are arranged on the positioning plate 26, and a positioning inclined surface 29 is arranged on the second positioning block 28. A second fixing area for fixing the first workpiece is formed between the positioning inclined surface 29 of the second positioning block 28 and the L-shaped first positioning block 27.

[0058] In this embodiment, the first workpiece may be a golf head handle without a socket. After the first robot 5 takes a golf head handle without a socket from the loading platform and places it on the second fixed area, the first robot 5 releases the clamp, and the golf head handle without a socket adapts to the position according to the positioning slope 29, so that the position of the irregular golf head handle is fixed.

[0059] In this embodiment, a pad assembly is provided between the second support base 25 and the positioning plate 26, and the pad assembly includes a first pad and a second pad. A spring and a spring base for fixing the spring are provided between the first pad and the second pad. The first pad is fixedly connected to the second support base 25, and the second pad is fixedly connected to the positioning plate 26.

[0060] Combination Figure 1-Figure 3 , see Figure 4 A discharge groove 13 for placing unqualified workpieces is provided on the work table 1, and a work table base 14 for placing electrical components, gas circuits and circuit wires is provided at the bottom of the work table 1. The work table base 14 is provided with an unqualified workpiece accommodating cavity corresponding to the discharge groove 13.

[0061] In this embodiment, the bottom wall of the accommodating cavity is arranged as an inclined surface, so as to facilitate the workpiece to slide down to the discharge port.

[0062] Combination Figure 1-Figure 3 , see Figure 4 , automated assembly welding workpiece equipment, also includes a laser welder 15 that cooperates with the welding gun of the second robot 7, a solenoid valve group that cooperates with the electrical components is provided on the work table 1, a protective cover 16 is provided on the periphery of the solenoid valve group, and a heat dissipation gap is provided on the protective cover 16; a wiring profile 17 is provided between the laser welder 15 and the work table base 14, and a wiring groove is provided on the wiring profile 17.

[0063] See also Figure 5 The first robot 5 is provided with an internal support fixture structure 58 for clamping the first workpiece; the internal support fixture structure 58 is detailed in the internal support clamping robot fixture device and golf club head grinding equipment disclosed in Chinese patent document No. CN110757333A, which will not be described in detail here.

[0064] See also Fig.11 An auxiliary mechanism 54 is provided on the work table 1 corresponding to the unloading direction of the assembled welding workpiece. The auxiliary mechanism 54 includes an auxiliary mechanism support seat 55. A loosening cylinder 56 and a loosening positioning block 57 are provided on the auxiliary mechanism support seat 55. A loosening clamp is provided at one end of the piston rod of the loosening cylinder 56. The loosening clamp is cooperatively connected with the piston rod of the loosening cylinder 56. The piston rod of the loosening cylinder 56 drives the loosening clamp to approach or move away from the loosening positioning block 57.

[0065] The specific working process is:

[0066] The first workpiece is manually placed in the upper and lower layers of the first conveyor line 3, and the second workpiece is manually placed in the upper and lower layers of the second conveyor line 4. The first conveyor line 3 conveys the first workpiece to the designated position, and the second conveyor line 4 conveys the second workpiece to the designated position. The first robot 5 grabs the first workpiece of the first conveyor line 3 and moves it to the secondary positioning mechanism 12 for secondary positioning. Then the first robot 5 moves the first workpiece to the visual camera mechanism 11. The visual camera mechanism 11 identifies whether the surface of the first workpiece is qualified and transmits the information to the control system on the equipment. The control system compares the data entered into this welding process with the information transmitted by the visual camera mechanism 11, and the control system determines whether the first workpiece is qualified. If qualified, the first robot 5 grabs the first workpiece to the assembly welding position; if unqualified, the first robot 5 grabs the first workpiece to the discharge trough 13.

[0067] While the first robot 5 is working, the second robot 7 drives the detector 8 to detect the second workpiece. Similarly, the detector 8 transmits information to the control system on the equipment. The control system compares the data entered into this welding process with the information transmitted by the detector 8, and determines whether the second workpiece is qualified. If qualified, the transfer mechanism 6 grabs the second workpiece, and then waits for the first robot 5 to drive the first workpiece to move to the second workpiece of the transfer mechanism 6. The first robot 5 assembles the first workpiece with the second workpiece, and the second robot 7 drives the welding gun to weld the first workpiece and the second workpiece. After welding is completed, the first robot 5 drives the assembled welded workpiece to move to the grinding mechanism 9 for grinding, and then the first robot 5 drives the assembled welded workpiece to move to the laser marking mechanism 10 for laser marking. After laser marking is completed, the first robot 5 drives the assembled welded workpiece to move to the accommodating cavity 50 of the first conveyor line 3.

[0068] If the first robot 5 has a high degree of clamping when gripping the workpiece and the workpiece is not easy to loosen, the workpiece can be loosened by the loosening cylinder 56 to facilitate loosening of the workpiece.

[0069] The above is a preferred embodiment of the present invention, which shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for illustrating the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automated welding workpiece assembly device, comprising a work surface (1) and a frame (2), characterized in that: A first conveyor line (3) for placing a first workpiece and a second conveyor line (4) for placing a second workpiece are provided on the work surface (1); a first robot (5) for clamping the first workpiece and a transfer mechanism (6) for clamping the second workpiece are also provided on the work surface (1); a second robot (7) is also provided on the work surface (1); a welding gun and a detector (8) for detecting whether the second workpiece is qualified are provided on the second robot (7); the detector (8) and the welding gun are respectively connected to a part of the second robot (7); a grinding mechanism (9) is also provided on the work surface (1); and a laser marking mechanism (10) and a visual camera mechanism (11) for detecting whether the first workpiece is qualified are provided on the frame (2); The worktable (1) is also provided with a secondary positioning mechanism (12) for performing secondary positioning on the first workpiece; the secondary positioning mechanism (12) comprises a first support seat (18), a fixed plate (19) fixedly connected to the first support seat (18), the fixed plate (19) being provided with a first positioning column (20), and an elastically retractable plug shaft (21), the first workpiece being provided with a hole that cooperates with the plug shaft (21), the secondary positioning mechanism (12) further comprising a swing cylinder (22), the cylinder body of the swing cylinder (22) being movably connected to a part of the fixed plate (19); a swing plate (23) being provided between a piston rod of the swing cylinder (22) and another part of the fixed plate (19), the swing plate (23) being provided with a second positioning column (24), and the swing plate (23) being cooperatively connected to a piston rod of the swing cylinder (22); Another part of the movable plate (23) is movably connected to another part of the fixed plate (19), and the piston rod of the swing cylinder (22) drives the second positioning column (24) of the swing plate (23) to move away from or approach the first positioning column (20), and the second positioning column (24) approaches the first positioning column (20) to form a first fixing area for fixing the first workpiece; or, the secondary positioning mechanism (12) comprises a second support base (25), a positioning plate (26) elastically and telescopically arranged on the second support base (25), an L-shaped first positioning block (27) and a second positioning block (28) are arranged on the positioning plate (26), a positioning inclined surface (29) is arranged on the second positioning block (28), and a second fixing area for fixing the first workpiece is formed between the positioning inclined surface (29) of the second positioning block (28) and the L-shaped first positioning block (27); The second robot (7) is provided with a connection seat (36) for connecting a welding gun and a detector (8), a connection plate (37) is provided at the bottom of the connection seat (36), the detector (8) is partially fixed on the connection plate (37), a circuit box (38) for arranging the circuits of the welding gun and the detector (8) is provided at the bottom of the connection plate (37), a fixed base (39) is provided at the bottom of the circuit box (38), the welding gun is connected to the fixed base (39), and a blow fixing seat is provided between the welding gun and the fixed base (39).

2. The automated assembly welding workpiece equipment according to claim 1, characterized in that: The grinding mechanism (9) comprises a support base (41) provided with a rotating shaft (40), the rotating shaft (40) being provided with a grinding wheel (42); the support base (41) being provided with a rotating shaft fixing seat (43), the rotating shaft fixing seat (43) being provided with a bearing, the rotating shaft (40) passing through the rotating shaft fixing seat (43) and being inserted into the bearing, a dustproof retaining ring (44) being provided at an opening of the rotating shaft fixing seat (43), the dustproof retaining ring (44) being provided with a fixing groove for installing an oil seal (45), the rotating shaft (40) being provided with a shaft sleeve, a front retaining ring, and a rear retaining ring, the shaft sleeve, the front retaining ring, the rear retaining ring, and the oil seal (45) being all sleeved on the rotating shaft (40), and the grinding wheel (42) being located between the front retaining ring and the rear retaining ring, and the rear retaining ring being in contact with the shaft sleeve.

3. The automated assembly welding workpiece equipment according to claim 1, characterized in that: The transfer mechanism (6) comprises a support column (30), a supporting plate (31) arranged on the support column (30), and a transverse motion platform (32) arranged on the supporting plate (31). The transfer mechanism (6) further comprises a lifting platform (33), a grabbing portion (34) connected to the lifting platform (33), a clamping groove (35) being provided on the grabbing portion (34), a transverse motion structure being provided between the lifting platform (33) and the transverse motion platform (32), and the grabbing portion (34) on the lifting platform (33) reciprocatingly moving along the transverse motion platform (32) via the transverse motion structure; a lifting structure connected to the grabbing portion (34) being provided on the lifting platform (33), and the grabbing portion (34) moving up and down along the lifting platform (33) via the lifting structure; and an elastic telescopic movable structure being provided between the grabbing portion (34) and the lifting structure.

4. The automated assembly welding workpiece equipment according to claim 1, characterized in that: The first conveyor line (3) comprises a first frame of a first conveyor platform (46), the first frame being arranged on a work surface (1) via a slider and a slide rail for reciprocating motion, a plurality of positioning bases (47) being arranged on the first conveyor platform (46), the positioning bases (47) being provided with positioning pillars (49) for cooperating with the first workpiece to be placed, the positioning bases (47) being provided with a clamping structure for clamping the first workpiece, the positioning bases (47) being provided with a valve (48) for controlling the activation of the clamping structure, and a receiving cavity (50) for placing the assembled welding workpiece on one side of the positioning base (47).

5. The automated assembly welding workpiece equipment according to claim 1 or 4, characterized in that: The first conveyor line (3) and the second conveyor line (4) are arranged in two layers, the outer side of the accommodating cavity (50) is provided with a blocking bar (51), the second conveyor line (4) comprises a second frame body supporting a second conveying platform (52), the second frame body is arranged on the work surface (1) through a slider and a slide rail for reciprocating motion, and the second conveying platform (52) is provided with a plurality of accommodating grooves (53) for placing the second workpiece.

6. The automated assembly welding workpiece equipment according to claim 1, characterized in that: A discharge trough (13) for placing unqualified workpieces is provided on the work surface (1), a work surface base (14) for placing electrical components, gas circuits and circuit wire tubes is provided at the bottom of the work surface (1), and an unqualified workpiece accommodating cavity is provided on the work surface base (14) corresponding to the discharge trough (13).

7. The automated assembly welding workpiece equipment according to claim 6, characterized in that: It also includes a laser welder (15) that cooperates with the welding gun of the second robot (7); a solenoid valve group that cooperates with the electrical components is provided on the work surface (1); a protective cover (16) is provided on the periphery of the solenoid valve group; and a heat dissipation notch is provided on the protective cover (16); a wiring profile (17) is provided between the laser welder (15) and the work table base (14); and a wiring groove is provided on the wiring profile (17).

8. The automated assembly welding workpiece equipment according to claim 1, characterized in that: The first robot (5) is provided with an internal support fixture structure (58) for clamping the first workpiece; the work table (1) is provided with an auxiliary mechanism (54) in the direction of unloading corresponding to the assembled welding workpiece, the auxiliary mechanism (54) comprising an auxiliary mechanism support seat (55), a loosening cylinder (56) and a loosening positioning block (57) being provided on the auxiliary mechanism support seat (55), a loosening clamping block being provided at one end of a piston rod of the loosening cylinder (56), the loosening clamping block being cooperatively connected with the piston rod of the loosening cylinder (56), and the piston rod of the loosening cylinder (56) driving the loosening clamping block to approach or move away from the loosening positioning block (57).

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