A gun cleaning and wire cutting device for robot welding double-wire CMT welding gun

Abstract

The invention discloses a gun cleaning and wire cutting device for a robot welding double-wire CMT welding gun, comprising a box body, a welding gun angle adjustment structure, a double-wire welding gun, a first vertical detection device and a second vertical detection device. The first vertical detection device and the second vertical detection device are used to detect the inclination direction and the inclination angle of a gun barrel of the double-wire welding gun at two different angles respectively. Detection rods 1 and 2 of the first vertical detection device and the second vertical detection device are in contact with the gun barrel of the double-wire welding gun. When the gun barrel of the double-wire welding gun is in a vertical state, gear 1 does not rotate. When the gun barrel of the double-wire welding gun is tilted, gear 1 is driven to rotate. The rotation direction and the rotation angle of gear 1 are detected by an angle sensor, the inclination direction and the inclination angle of the double-wire welding gun are calculated, and the welding gun angle adjustment structure is used to adjust the double-wire welding gun according to its inclination angle.

Description

Technical Field

[0001] The invention relates to the field related to robot welding auxiliary equipment, in particular to a gun cleaning and wire cutting device for a robot welding double-wire CMT welding gun. Background Art

[0002] ‌The double-wire CMT welding gun is a welding device that combines CMT cold metal transfer technology and double-wire welding technology. The double-wire CMT welding gun performs well in various welding applications and is suitable for welding carbon steel, stainless steel, aluminum, copper, nickel and other materials. With the rapid development of science and technology, artificial intelligence technology has also made great progress. Robots are widely used as intelligent devices. When the robot welding double-wire CMT welding gun is in use, more fine chips and welding slag are likely to appear on the outside and inner wall of the double-wire welding gun. The existing double-wire welding gun is automatically cleaned and wire-cut by setting a gun cleaning and wire cutting device;

[0003] For example, the Chinese invention with the publication number CN110814220B discloses an automatic gun cleaning and wire cutting device for robot welding double-wire CMT welding gun, comprising a bottom box, an upper box body is arranged on the top surface of the bottom box, the upper box body is in the shape of a rectangle, a horizontal partition is arranged in the middle of the upper box body, and the upper box body is divided into an upper cleaning chamber and a lower cleaning chamber; a center hole 1 is arranged at the center of the top surface of the upper cleaning chamber, the center hole 1 is circular, and the diameter of the center hole 1 is larger than the barrel diameter of the double-wire welding gun; a center hole 2 is arranged in the middle of the bottom surface of the upper cleaning chamber, and the diameter of the center hole 2 is equal to that of the center hole 1; it adopts a cleaning brush to clean the outside and inside of the double-wire welding gun, and simultaneously cuts the wire; it has the advantage of being easy to use, and while cutting the wire, the outside and inside of the welding gun are cleaned, which ensures the normal use of the welding gun and can extend its service life;

[0004] Although the above-mentioned automatic gun cleaning and wire cutting device for robot welding double-wire CMT welding gun can realize automatic gun cleaning and wire cutting of the double-wire welding gun, by using cleaning brush 1 and cleaning brush 2 to brush the inner wall and outer wall of the barrel of the double-wire welding gun, it cannot ensure that the barrel of the double-wire welding gun is parallel to the cleaning brush 1 and cleaning brush 2. When the barrel of the double-wire welding gun is tilted, brushing it may easily cause the rotating shafts of the cleaning brush 1 and cleaning brush 2 to collide with the barrel of the double-wire welding gun, causing damage to the barrel and rotating shaft of the double-wire welding gun. Summary of the invention

[0005] Therefore, in order to solve the above-mentioned shortcomings, the present invention provides a gun cleaning and wire cutting device for a robot welding double-wire CMT welding gun.

[0006] The present invention is implemented in this way: a gun cleaning and wire cutting device for a robot welding double-wire CMT welding gun is constructed, the device comprises a box body, a welding gun angle adjustment structure, a double-wire welding gun, a first vertical detection device and a second vertical detection device, the welding gun angle adjustment structure is installed on the top of the box body, the first vertical detection device is installed on both the left and right sides of the inner top of the box body, the second vertical detection device is installed on the front side of the inner top of the box body, the first vertical detection device and the second vertical detection device are used to detect the verticality of the double-wire welding gun, and the welding gun angle adjustment structure is used to fix and adjust the angle of the double-wire welding gun;

[0007] The first vertical detection device includes an outer frame, a detection rod 1, a detection rod 2, an infrared transmitter, an infrared receiver, a gear 1, a toothed plate assembly, a transmission shaft, and an angle sensor. The detection rod 1 and the detection rod 2 respectively penetrate the left side wall of the outer frame, and the infrared transmitter and the infrared receiver are respectively installed on the left sides of the outer walls of the detection rod 1 and the detection rod 2. A gear 1 is provided in the inner middle part of the outer frame, and toothed plate assemblies are respectively provided on the upper and lower sides of the gear 1, and the gear 1 and the toothed plate assembly are meshed with each other. The two groups of toothed plate assemblies are respectively connected to the detection rod 1 and the detection rod 2, and the center of the gear 1 is connected to the angle sensor through a transmission shaft.

[0008] Preferably, an outer wall brushing device is provided on the rear side of the inner top end of the box body, electric wire cutters are provided on the front and rear sides of the inner side of the box body, and the electric wire cutters are connected to a manipulator, and the manipulator is fixed to the inner wall of the box body, a support frame is provided in the middle of the inner bottom end of the box body, an inner wall brushing assembly is installed inside the support frame, collection frames are provided on the left and right sides of the inner bottom end of the box body, the bottom end of the box body is fixedly connected to the bottom plate, and a controller assembly is installed on the left side of the top end of the bottom plate.

[0009] Preferably, a slider passes through the outside of the transmission shaft, support plates are fixed on the front and rear sides of the inner part of the outer frame, a sliding groove is horizontally opened inside the support plate, and the slider slides along the inner wall of the sliding groove, and the angle sensor is fixed to the outside of the slider, the right end of the outer frame is fixedly connected to the telescopic rod of the electric push rod 2, and the electric push rod 2 is fixed to the outside of the box.

[0010] Preferably, the tooth plate assembly includes a tooth plate, a limit rod, a spring, an adjustment component 1, an adjustment component 2 and a connecting rod, the inner middle part of the tooth plate is horizontally penetrated by the limit rod, the left and right sides of the outer wall of the limit rod are equipped with springs, the left and right ends of the limit rod are fixedly connected to the outer frame, the left and right sides of the tooth plate are elastically connected to the adjustment component 1 and the adjustment component 2 through the spring respectively, and the adjustment component 1 and the adjustment component 2 are fixedly connected to the outer frame, one side of the tooth plate is meshed with gear 1, and the other side of the tooth plate is fixedly connected to the connecting rod.

[0011] Preferably, the second adjustment component includes a movable plate, a screw, a support frame and a knob, the inner sides of the movable plate are transversely penetrated by the screw and the limit rod respectively, and the inner wall of the movable plate is threadedly connected to the screw, one end of the screw is rotatably connected to the support frame through a bearing, and the other end of the screw is transmission connected to the knob through a coupling, the support frame is fixed to the inner wall of the outer frame, and the knob is arranged on the outer side of the outer frame, and the movable plate is elastically connected to the toothed plate through a spring.

[0012] Preferably, the welding gun angle adjustment structure includes a rotating frame, a vertical plate, a longitudinal rotating shaft, a motor 1, a support frame 1, a transverse rotating shaft, a motor 2, a welding gun socket, a clamp and an electric push rod 1. The middle parts of the front and rear sides of the rotating frame are rotatably connected with the vertical plate through the longitudinal rotating shaft respectively, the outer side of the vertical plate is fixed with a motor 1, and the output shaft of the motor 1 is transmission-connected with the longitudinal rotating shaft through a coupling. The support frame 1 is arranged in the inner middle part of the rotating frame, the middle parts of the left and right ends of the support frame 1 are rotatably connected with the rotating frame through the transverse rotating shaft respectively, the output shaft of the motor 2 is transmission-connected with the transverse rotating shaft through a coupling, the motor 2 is fixed to the outer side of the rotating frame, the bottom end wall of the support frame 1 is provided with two welding gun sockets, clamps are provided on the front and rear sides of the interior of the support frame 1, the outer sides of the two clamps are respectively connected with the telescopic rods of the two electric push rods 1, and the electric push rod 1 is fixed to the outer side of the support frame 1.

[0013] Preferably, the outer wall brushing device comprises a movable shell 1, a motor 3, a rotating plate, a brush shaft 1, a gear 2, a gear 3, an outer wall cleaning brush and an electric push rod 3, a motor 3 is fixed to the middle part of the bottom end of the movable shell 1, an output shaft at the top end of the motor 3 passes through the center of the gear 3 and is transmission-connected to one end of the rotating plate, and the other end of the rotating plate is rotationally connected to the bottom end of the brush shaft 1 through a bearing, a gear 2 is mounted on the outer bottom of the brush shaft 1, the gear 2 and the gear 3 are meshed with each other, and the bottom edge of the gear 3 is fixedly connected to the movable shell 1, an outer wall cleaning brush is arranged on the top of the outer wall of the brush shaft 1, the rear side of the movable shell 1 is fixedly connected to the telescopic rod of the electric push rod 3, and the electric push rod 3 is fixed to the outside of the box.

[0014] Preferably, the inner wall brushing assembly includes a movable shell 2, a motor 4, a gear 4, a gear 5, a brush shaft 2, an inner wall cleaning brush, a connecting frame, an electric push rod 4 and a partition, a motor 4 is fixed to the middle part of the bottom end of the movable shell 2, an output shaft at the top of the motor 4 is transmission connected to the center of the gear 4, gears 5 are arranged on the left and right sides of the gear 4, the gear 5 and the gear 4 are meshed with each other, the center of the gear 5 is vertically penetrated by the brush shaft 2, and the brush shaft 2 is transmission connected to the gear 5, the bottom end of the brush shaft 2 is rotatably connected to the movable shell 2 through a bearing, and the top end of the brush shaft 2 extends out of the movable shell 2, an inner wall cleaning brush is arranged on the top of the outer wall of the brush shaft 2, the bottom end edge of the movable shell 2 is fixedly connected to the connecting frame, and the bottom end of the connecting frame is connected to the telescopic rod of the electric push rod 4, the electric push rod 4 is fixed to the bottom of the partition, and the partition is fixed to the inner middle part of the support frame.

[0015] The present invention has the following advantages: The present invention provides a robot welding double-wire CMT welding gun cleaning and wire cutting device through improvement, which has the following improvements compared with the same type of equipment:

[0016] The invention discloses a gun cleaning and wire cutting device for a double-wire CMT welding gun of a robot. The gun angle adjustment structure, a first vertical detection device and a second vertical detection device are provided. The first vertical detection device and the second vertical detection device are used to detect the inclination direction and the inclination angle of the gun barrel of the double-wire welding gun at two different angles respectively. The detection rods 1 and 2 of the first vertical detection device and the second vertical detection device are in contact with the gun barrel of the double-wire welding gun. When the gun barrel of the double-wire welding gun is in a vertical state, the detection rods 1 and 2 drive the gear 1 to move, and the gear 1 does not rotate. When the gun barrel of the double-wire welding gun is tilted, the detection rod 1 or the detection rod 2 contracts to drive the gear 1 to rotate. The rotation direction and the rotation angle of the gear 1 are detected by an angle sensor, and the inclination direction and the inclination angle of the double-wire welding gun are calculated. The gun angle adjustment structure is used to adjust the double-wire welding gun according to its inclination angle to ensure the angle of the double-wire welding gun, and to avoid collision with the wire cutting structure and the brushing structure when the double-wire welding gun is cleaned and wire cut, thereby causing damage to the double-wire welding gun and the gun cleaning and wire cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 It is a front view of the internal structure of the box body of the present invention;

[0019] Figure 3 This is a right view of the top structure inside the box of the present invention;

[0020] Figure 4 It is a schematic diagram of the internal structure of the first vertical detection device of the present invention;

[0021] Figure 5 It is a schematic diagram of the transmission shaft structure of the present invention;

[0022] Figure 6 It is a schematic diagram of the structure of the tooth plate assembly of the present invention;

[0023] Figure 7 The present invention Figure 6 A local enlarged structural schematic diagram of area A;

[0024] Figure 8 It is a schematic diagram of the welding gun angle adjustment structure of the present invention;

[0025] Fig. 9 It is a right view of the internal structure of the outer wall scrubbing device of the present invention;

[0026] Fig.10 It is a schematic diagram of the internal structure of the inner wall scrubbing component of the present invention.

[0027] Among them: box body-1, welding gun angle adjustment structure-2, double-wire welding gun-3, first vertical detection device-4, second vertical detection device-5, outer wall brushing device-6, electric wire cutters-7, manipulator-8, inner wall brushing assembly-9, support frame-10, through hole-101, collection frame-11, bottom plate-12, controller assembly-13, rotating frame-21, vertical plate-22, longitudinal rotating shaft-23, motor-24, support frame-25, horizontal rotating shaft-26, motor-27, welding gun socket-28, clamp-29, electric push rod-210, outer frame-41, detection rod-42, detection rod-43, infrared transmitter-44, infrared receiver-45, gear-46, gear plate assembly-47, transmission shaft-48 , slider-49, angle sensor-410, support plate-411, slide groove-412, electric push rod two-413, tooth plate-471, limit rod-472, spring-473, adjustment component one-474, adjustment component two-475, connecting rod-476, movable plate-4751, screw-4752, support frame-4753, knob-4754, movable shell one-61, motor three-62, rotating plate-63, brush shaft one-64, gear two-65, gear three-66, outer wall cleaning brush-67, electric push rod three-68, movable shell two-91, motor four-92, gear four-93, gear five-94, brush shaft two-95, inner wall cleaning brush-96, connecting frame-97, electric push rod four-98, partition-99. DETAILED DESCRIPTION

[0028] The following will be combined with the attached Figure 1-10The present invention is described in detail, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-3 The present invention discloses a gun cleaning and wire cutting device for a robot welding double-wire CMT welding gun, comprising a box body 1, a welding gun angle adjustment structure 2, a double-wire welding gun 3, a first vertical detection device 4 and a second vertical detection device 5. The welding gun angle adjustment structure 2 is installed on the top of the box body 1, the first vertical detection device 4 is installed on both sides of the inner top of the box body 1, and the second vertical detection device 5 is installed on the front side of the inner top of the box body 1. The first vertical detection device 4 and the second vertical detection device 5 are used to detect the verticality of the double-wire welding gun 3, and the welding gun angle adjustment structure 2 is used to fix and adjust the angle of the double-wire welding gun 3.

[0030] The two first vertical detection devices 4 are symmetrically arranged, and two second vertical detection devices 5 are arranged, the two second vertical detection devices 5 are aligned in a straight line front and back with the twin-wire welding gun 3, the first vertical detection device 4 and the second vertical detection device 5 have the same structure, and when the first vertical detection device 4 and the second vertical detection device 5 are viewed from above, the first vertical detection device 4 is horizontally arranged and the second vertical detection device 5 is vertically arranged.

[0031] An outer wall brushing device 6 is provided at the rear side of the inner top of the box body 1, electric wire cutters 7 are provided on both the front and rear sides of the inner side of the box body 1, and the electric wire cutters 7 are connected to a manipulator 8, and the manipulator 8 is fixed to the inner wall of the box body 1, a support frame 10 is provided in the middle of the inner bottom end of the box body 1, and an inner wall brushing component 9 is installed inside the support frame 10, and a collection frame 11 is provided on both the left and right sides of the inner bottom end of the box body 1, the bottom end of the box body 1 is fixedly connected to the bottom plate 12, and a controller component 13 is installed on the left side of the top end of the bottom plate 12, and the controller component 13 is used to control the circuit equipment of the box body 1, and a single-chip microcomputer is provided in the controller component 13;

[0032] The electric wire cutter 7 is used to cut the wire of the barrel of the double-wire welding gun 3. The manipulator 8 is a kind of machine that can imitate certain movements of human hands and arms. The electric wire cutter 7 is controlled by the manipulator 8 to move in multiple directions. The electric wire cutter 7 and the manipulator 8 are both mature existing technologies. The Chinese invention with the publication number CN110814220B discloses an automatic gun cleaning and wire cutting device for robot welding double-wire CMT welding gun, which uses the wire cutter to cooperate with the position sensor to sense the position of the double-wire welding gun, and cuts the wire of the barrel of the double-wire welding gun by the wire cutter;

[0033] The electric wire cutter 7 can adopt the wire cutting technology in the automatic gun cleaning and wire cutting device for robot welding double-wire CMT welding gun to achieve wire cutting of the double-wire welding gun;

[0034] A through hole 101 is opened in the middle of the left and right sides of the support frame 10, and the position of the through hole 101 is aligned with the position of the movable shell 91 after moving down. The movable shell 91 fits against the inner wall of the support frame 10, and the left and right sides of the movable shell 91 are inclined outward from top to bottom, which is conducive to the dust and debris falling into the support frame 10 to fall into the collection frame 11 through the through hole 101, and after the movable shell 91 moves up, the movable shell 91 blocks the top of the support frame 10, which is conducive to introducing the debris into the collection frame 11.

[0035] See also Figure 4-5 The first vertical detection device 4 includes an outer frame 41, a detection rod 1 42, a detection rod 2 43, an infrared transmitter 44, an infrared receiver 45, a gear 1 46, a toothed plate assembly 47, a transmission shaft 48, and an angle sensor 410. The detection rod 1 42 and the detection rod 2 43 respectively penetrate the left side wall of the outer frame 41, and the infrared transmitter 44 and the infrared receiver 45 are respectively installed on the left side of the outer wall of the detection rod 1 42 and the detection rod 2 43. A gear 1 46 is provided in the inner middle part of the outer frame 41, and toothed plate assemblies 47 are respectively provided on the upper and lower sides of the gear 1 46, and the gear 1 46 and the toothed plate assembly 47 are meshed with each other. The two sets of toothed plate assemblies 47 are respectively connected to the detection rod 1 42 and the detection rod 2 43, and the center of the gear 1 46 is connected to the angle sensor 410 through the transmission shaft 48;

[0036] The infrared transmitter 44 is used to transmit infrared light, and the infrared receiver 45 is used to receive the infrared light of the infrared transmitter 44. This is a mature existing technology. The infrared transmitter 44 and the infrared receiver 45 are used to check whether the ends of the detection rod 1 42 and the detection rod 2 43 are in the same vertical line. At the same time, it can be used to calibrate the initial angle detected by the angle sensor 410 to the gear 1 46. When the ends of the detection rod 1 42 and the detection rod 2 43 are not in the same vertical line, the infrared receiver 45 cannot receive the infrared light of the infrared transmitter 44. The detection device 410 detects the rotation direction and rotation angle, controls the adjustment component 1 474 and the adjustment component 2 475 to adjust the position of the tooth plate 471, and when the ends of the detection rod 1 42 and the detection rod 2 43 are in the same vertical line, the infrared receiver 45 receives the infrared light of the infrared transmitter 44, and at this time calibrates the angle sensor 410, sets the angle as the initial angle, and detects the angle difference between the rotation angle of the gear 1 46 and the initial angle, and the rotation direction of the gear 1 46 through the angle sensor 410, and calculates the barrel tilt angle of the double-wire welding gun 3;

[0037] Pressure sensors or photoelectric sensors can be installed on the protruding ends of the detection rod 1 42 and the detection rod 2 43. The pressure sensors or photoelectric sensors are mature existing technologies. When the detection rod 1 42 and the detection rod 2 43 are in contact with the double-wire welding gun 3, the induction is triggered to monitor whether the detection rod 1 42 and the detection rod 2 43 are in contact with the barrel of the double-wire welding gun 3.

[0038] A slider 49 passes through the outer side of the transmission shaft 48, and support plates 411 are fixed on the front and rear sides of the inner part of the outer frame 41. A slide groove 412 is horizontally opened inside the support plate 411, and the slider 49 slides along the inner wall of the slide groove 412, and the angle sensor 410 is fixed to the outer side of the slider 49, and the right end of the outer frame 41 is fixedly connected to the telescopic rod of the electric push rod 413, and the electric push rod 413 is fixed to the outer side of the box body 1.

[0039] See also Figure 6-7 The tooth plate assembly 47 includes a tooth plate 471, a limiting rod 472, a spring 473, an adjustment assembly 1 474, an adjustment assembly 2 475 and a connecting rod 476. The inner middle part of the tooth plate 471 is horizontally penetrated by the limiting rod 472. The left and right sides of the outer wall of the limiting rod 472 are both equipped with springs 473. The left and right ends of the limiting rod 472 are fixedly connected to the outer frame 41. The left and right sides of the tooth plate 471 are elastically connected to the adjustment assembly 1 474 and the adjustment assembly 2 475 through the spring 473, and the adjustment assembly 1 474 and the adjustment assembly 2 475 are fixedly connected to the outer frame 41. One side of the tooth plate 471 is meshed with the gear 1 46, and the other side of the tooth plate 471 is fixedly connected to the connecting rod 476.

[0040] The second adjustment component 475 includes a movable plate 4751, a screw rod 4752, a support frame 4753 and a knob 4754. The inner sides of the movable plate 4751 are respectively penetrated horizontally by the screw rod 4752 and the limit rod 472, and the inner wall of the movable plate 4751 is threadedly connected with the screw rod 4752. One end of the screw rod 4752 is rotatably connected with the support frame 4753 through a bearing, and the other end of the screw rod 4752 is transmission-connected with the knob 4754 through a coupling. The support frame 4753 is fixed to the inner wall of the outer frame 41, and the knob 4754 is arranged on the outer side of the outer frame 41. The movable plate 4751 is elastically connected with the tooth plate 471 through the spring 473.

[0041] When adjusting the initial positions of the detection rod 1 42 and the detection rod 2 43, the screw rod 4752 is driven to rotate by turning the knob 4754, and the rotation of the screw rod 4752 drives the movable plate 4751 to move. By adjusting the position of the movable plate 4751 and the pressure of the spring 473, the tooth plate 471 is moved until the infrared receiver 45 receives the infrared light from the infrared transmitter 44, thereby completing the initial position adjustment of the detection rod 1 42 and the detection rod 2 43.

[0042] See also Figure 8 The welding gun angle adjustment structure 2 includes a rotating frame 21, a vertical plate 22, a longitudinal rotating shaft 23, a motor 24, a support frame 25, a transverse rotating shaft 26, a motor 27, a welding gun socket 28, a clamping plate 29 and an electric push rod 210. The middle parts of the front and rear sides of the rotating frame 21 are rotatably connected with the vertical plate 22 through the longitudinal rotating shaft 23 respectively. The outer side of the vertical plate 22 is fixed with a motor 24, and the output shaft of the motor 24 is transmission-connected with the longitudinal rotating shaft 23 through a coupling. The support frame 25 is arranged in the inner middle part of the rotating frame 21. The middle parts of the left and right ends of the support frame 1 25 are rotatably connected to the rotating frame 21 through the transverse rotating shaft 26 respectively, the output shaft of the motor 27 is transmission-connected to the transverse rotating shaft 26 through a coupling, the motor 27 is fixed to the outside of the rotating frame 21, the bottom end wall of the support frame 1 25 is provided with two welding gun sockets 28, the front and rear sides of the interior of the support frame 1 25 are provided with clamping plates 29, the outer sides of the two clamping plates 29 are respectively connected to the telescopic rods of the two electric push rods 1 210, and the electric push rods 1 210 are fixed to the outside of the support frame 1 25;

[0043] Motor 1 24 and motor 2 27 are both Panasonic A5 series servo motors, which have the characteristics of high precision, high speed and high performance, and increase the angle adjustment accuracy of the double-wire welding gun 3.

[0044] See also Fig. 9 , the outer wall scrubbing device 6 includes a movable shell 1 61, a motor 3 62, a rotating plate 63, a brush shaft 1 64, a gear 2 65, a gear 3 66, an outer wall cleaning brush 67 and an electric push rod 3 68. The motor 3 62 is fixed to the middle of the bottom end of the movable shell 1 61, and the output shaft at the top of the motor 3 62 passes through the center of the gear 3 66 and is transmission-connected to one end of the rotating plate 63, and the other end of the rotating plate 63 is rotationally connected to the bottom end of the brush shaft 1 64 through a bearing, and the outer bottom of the brush shaft 1 64 is sleeved with a gear 2 65, and the gear 2 65 and the gear 3 66 are meshed with each other, and the bottom edge of the gear 3 66 is fixedly connected to the movable shell 1 61, and the outer wall cleaning brush 67 is arranged on the top of the outer wall of the brush shaft 1 64, and the rear side of the movable shell 1 61 is fixedly connected to the telescopic rod of the electric push rod 3 68, and the electric push rod 3 68 is fixed to the outer side of the box body 1;

[0045] There are two groups of outer wall brushing devices 6, which are respectively used to clean the outer walls of the two cavities of the twin-wire welding gun 3.

[0046] See also Fig.10The inner wall brushing assembly 9 includes a movable shell 2 91, a motor 4 92, a gear 4 93, a gear 5 94, a brush shaft 2 95, an inner wall cleaning brush 96, a connecting frame 97, an electric push rod 4 98 and a partition 99. The motor 4 92 is fixed to the middle of the bottom end of the movable shell 2 91. The output shaft of the motor 4 92 is connected to the center of the gear 4 93. The gear 5 94 is arranged on both sides of the gear 4 93. The gear 5 94 meshes with the gear 4 93. The center of the gear 5 94 is vertically penetrated by the brush shaft 2 95. , and the brush shaft 2 95 is transmission connected with the gear 5 94, the bottom end of the brush shaft 2 95 is rotationally connected with the movable shell 2 91 through a bearing, and the top of the brush shaft 2 95 extends out of the movable shell 2 91, and an inner wall cleaning brush 96 is provided on the top of the outer wall of the brush shaft 2 95, the bottom edge of the movable shell 2 91 is fixedly connected with the connecting frame 97, and the bottom end of the connecting frame 97 is connected with the telescopic rod of the electric push rod 4 98, the electric push rod 4 98 is fixed to the bottom of the partition 99, and the partition 99 is fixed to the inner middle part of the support frame 10.

[0047] The present invention provides a gun cleaning and wire cutting device for a robot welding double-wire CMT welding gun through improvement, and its working principle is as follows;

[0048] First, by inserting the barrel of the double-wire welding gun 3 into the welding gun socket 28 of the support frame 1 25, and then controlling the electric push rod 1 210 to push the clamping plate 29, the double-wire welding gun 3 is clamped and fixed by the clamping plate 29 to prevent the double-wire welding gun 3 from moving when cleaning the gun and cutting the wire;

[0049] Second, before cleaning the gun and cutting the wire, it is necessary to detect the verticality of the barrel of the double-wire welding gun 3, and control the electric push rod 2 413 of the first vertical detection device 4 and the second vertical detection device 5 to extend respectively, so that the outer frame 41 of the first vertical detection device 4 and the second vertical detection device 5 moves inward, and contacts the barrel of the double-wire welding gun 3 through the detection rod 1 42 and the detection rod 2 43 on the upper and lower sides of the inner side of the outer frame 41. When the barrel of the double-wire welding gun 3 is in a vertical state, the detection rod 1 42 and the detection rod 2 43 drive the tooth plates 471 on the upper and lower sides of the gear 1 46 to move outward synchronously, and the two tooth plates 471 drive the gear 1 46 to move outward, and the gear 1 46 drives the slider 49 to slide along the slide groove 412 through the transmission shaft 48. The gear 1 46 does not rotate, and the infrared light emitted by the infrared transmitter 44 is received by the infrared receiver 45, and it is determined that the double-wire welding gun 3 is in a vertical state;

[0050] Third, when the barrel of the twin-wire welding gun 3 is tilted, when the detection rod 1 42 or the detection rod 2 43 contacts the barrel, the movement stroke between the detection rod 1 42 and the detection rod 2 43 deviates, and the movement strokes of the toothed plates 471 on the upper and lower sides of the gear 1 46 are different, driving the gear 1 46 to rotate. The rotation direction and rotation angle of the gear 1 46 are detected by the angle sensor 410, and the tilt direction and tilt angle of the twin-wire welding gun 3 are calculated;

[0051] Fourth, according to the detected tilt direction and tilt angle of the twin-wire welding gun 3, the motor 1 24 of the welding gun angle adjustment structure 2 is controlled to drive the rotating frame 21 to rotate through the longitudinal rotating shaft 23. When the rotating frame 21 rotates, the support frame 1 25 and the twin-wire welding gun 3 rotate synchronously, and the motor 2 27 is controlled to drive the support frame 1 25 and the twin-wire welding gun 3 to rotate synchronously through the transverse rotating shaft 26. The twin-wire welding gun 3 is rotated forward and backward and left and right by controlling the motor 1 24 and the motor 2 27 respectively, so as to realize the angle adjustment of the twin-wire welding gun 3;

[0052] Fifth, when the double-wire welding gun 3 is cleaned and the wires are cut, the electric wire cutter 7 is controlled by the manipulator 8 to move the double-wire welding gun 3 to cut the wires, and the movable shell 1 61 is moved to the bottom position of the barrel of the double-wire welding gun 3 by controlling the electric push rod 3 68 to extend, and the outer wall cleaning brush 67 is fitted with the outer wall of the barrel of the double-wire welding gun 3, and the rotating plate 63 is driven to rotate by controlling the motor 3 62, and the rotating plate 63 drives the brush shaft 1 64 and the outer wall cleaning brush 67 to rotate along the outer wall of the barrel of the double-wire welding gun 3, and at the same time, the gear 2 65 at the bottom of the brush shaft 1 64 is meshed with the gear 3 66, so that when the brush shaft 1 64 rotates in a circle, the gear 2 65 rotates by meshing with the gear 3 66, so that the brush shaft 1 64 and the outer wall cleaning brush 67 rotate, and the outer wall of the double-wire welding gun 3 is brushed;

[0053] The movable shell 91 is pushed upward by controlling the electric push rod 4 98, so that the brush shaft 2 95 and the inner wall cleaning brush 96 are extended into the barrel of the double-wire welding gun 3, and the motor 4 92 is controlled to drive the gear 4 93 to rotate at the center of the circle. The rotation of the gear 4 93 drives the gears 5 94 on the left and right sides to rotate synchronously, and the gear 5 94 drives the brush shaft 2 95 at the center of the circle to rotate, and the brush shaft 2 95 drives the inner wall cleaning brush 96 to brush the inner wall of the double-wire welding gun 3.

[0054] The above shows and describes the basic principle, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0055] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A gun cleaning and wire cutting device for a robot welding double-wire CMT welding gun, characterized in that: The invention comprises a box body (1), a welding gun angle adjustment structure (2), a twin-wire welding gun (3), a first vertical detection device (4) and a second vertical detection device (5), wherein the welding gun angle adjustment structure (2) is installed on the top of the box body (1), the first vertical detection device (4) is installed on both left and right sides of the top of the inner part of the box body (1), and the second vertical detection device (5) is installed on the front side of the top of the inner part of the box body (1), the first vertical detection device (4) and the second vertical detection device (5) are used to detect the verticality of the twin-wire welding gun (3), and the welding gun angle adjustment structure (2) is used to fix and adjust the angle of the twin-wire welding gun (3); The first vertical detection device (4) comprises an outer frame (41), a detection rod 1 (42), a detection rod 2 (43), an infrared transmitter (44), an infrared receiver (45), a gear 1 (46), a toothed plate assembly (47), a transmission shaft (48), and an angle sensor (410). The detection rod 1 (42) and the detection rod 2 (43) respectively penetrate the left side wall of the outer frame (41). The left side of the outer wall of the detection rod 1 (42) and the detection rod 2 (43) are respectively provided with an infrared transmitter (44), an infrared receiver (45), a gear 1 (46), a toothed plate assembly (47), a transmission shaft (48), and an angle sensor (410). The outer frame (41) is provided with a gear 1 (46) in the middle of the inner part, and toothed plate assemblies (47) are respectively provided on the upper and lower sides of the gear 1 (46), and the gear 1 (46) and the toothed plate assemblies (47) are meshed with each other, and the two sets of toothed plate assemblies (47) are respectively connected to the detection rod 1 (42) and the detection rod 2 (43), and the center of the gear 1 (46) is connected to the angle sensor (410) through a transmission shaft (48).

2. According to claim 1, a robot welding double-wire CMT welding gun cleaning and wire cutting device is characterized in that: An outer wall scrubbing device (6) is arranged at the rear side of the inner top of the box (1), electric wire cutters (7) are arranged on both the front and rear sides of the inner side of the box (1), and the electric wire cutters (7) are connected to a manipulator (8), and the manipulator (8) is fixed to the inner wall of the box (1), a support frame (10) is arranged at the middle of the inner bottom of the box (1), an inner wall scrubbing assembly (9) is installed inside the support frame (10), and collection frames (11) are arranged on both the left and right sides of the inner bottom of the box (1), the bottom of the box (1) is fixedly connected to a bottom plate (12), and a controller assembly (13) is installed on the left side of the top of the bottom plate (12).

3. According to claim 1, a robot welding double-wire CMT welding gun cleaning and wire cutting device is characterized in that: A slider (49) passes through the outer side of the transmission shaft (48), support plates (411) are fixed on both the front and rear sides of the inner side of the outer frame (41), a slide groove (412) is transversely opened inside the support plate (411), and the slider (49) slides along the inner wall of the slide groove (412), and the angle sensor (410) is fixed to the outer side of the slider (49), the right end of the outer frame (41) is fixedly connected to the telescopic rod of the second electric push rod (413), and the second electric push rod (413) is fixed to the outer side of the box body (1).

4. According to claim 1, a robot welding double-wire CMT welding gun cleaning and wire cutting device is characterized in that: The tooth plate assembly (47) comprises a tooth plate (471), a limiting rod (472), a spring (473), an adjustment assembly 1 (474), an adjustment assembly 2 (475) and a connecting rod (476); the limiting rod (472) penetrates the inner middle portion of the tooth plate (471) transversely; springs (473) are mounted on both left and right sides of the outer wall of the limiting rod (472); both left and right ends of the limiting rod (472) are fixedly connected to the outer frame (41); the left and right sides of the tooth plate (471) are elastically connected to the adjustment assembly 1 (474) and the adjustment assembly 2 (475) via the spring (473), respectively; the adjustment assembly 1 (474) and the adjustment assembly 2 (475) are fixedly connected to the outer frame (41); one side of the tooth plate (471) is meshed with the gear 1 (46); and the other side of the tooth plate (471) is fixedly connected to the connecting rod (476).

5. According to claim 4, a robot welding double-wire CMT welding gun cleaning and wire cutting device is characterized in that: The second adjustment component (475) comprises a movable plate (4751), a screw (4752), a support frame (4753) and a knob (4754); the inner sides of the movable plate (4751) are respectively penetrated transversely by the screw (4752) and the limit rod (472); the inner wall of the movable plate (4751) is threadedly connected to the screw (4752); one end of the screw (4752) is rotationally connected to the support frame (4753) via a bearing; the other end of the screw (4752) is transmission-connected to the knob (4754) via a coupling; the support frame (4753) is fixed to the inner wall of the outer frame (41); the knob (4754) is arranged on the outer side of the outer frame (41); and the movable plate (4751) is elastically connected to the tooth plate (471) via a spring (473).

6. According to claim 1, a robot welding double-wire CMT welding gun cleaning and wire cutting device is characterized in that: The welding gun angle adjustment structure (2) comprises a rotating frame (21), a vertical plate (22), a longitudinal rotating shaft (23), a motor (24), a support frame (25), a transverse rotating shaft (26), a motor (27), a welding gun socket (28), a clamping plate (29) and an electric push rod (210). The middle parts of the front and rear sides of the rotating frame (21) are respectively rotatably connected to the vertical plate (22) via the longitudinal rotating shaft (23). The outer side of the vertical plate (22) is fixed with a motor (24), and the output shaft of the motor (24) is transmission-connected to the longitudinal rotating shaft (23) via a coupling. The support frame (25) is arranged at the rotating frame (21). In the middle of the inner part, the middle parts of the left and right ends of the support frame 1 (25) are respectively rotatably connected to the rotating frame (21) through a transverse rotating shaft (26), the output shaft of the motor 2 (27) is transmission-connected to the transverse rotating shaft (26) through a coupling, the motor 2 (27) is fixed to the outer side of the rotating frame (21), the bottom end wall of the support frame 1 (25) is provided with two welding gun sockets (28), the front and rear sides of the interior of the support frame 1 (25) are both provided with clamping plates (29), the outer sides of the two clamping plates (29) are respectively connected to the telescopic rods of the two electric push rods 1 (210), and the electric push rods 1 (210) are fixed to the outer side of the support frame 1 (25).

7. According to claim 2, a robot welding double-wire CMT welding gun cleaning and wire cutting device is characterized in that: The outer wall cleaning device (6) comprises a movable shell (61), a motor (62), a rotating plate (63), a brush rotating shaft (64), a gear (65), a gear (66), an outer wall cleaning brush (67) and an electric push rod (68). The motor (62) is fixed to the middle of the bottom end of the movable shell (61). The output shaft at the top end of the motor (62) passes through the center of the gear (66) and is transmission-connected to one end of the rotating plate (63). The other end of the rotating plate (63) is connected to the brush rotating shaft through a bearing. The bottom end of shaft one (64) is rotatably connected, and the outer bottom of the brush shaft one (64) is provided with a gear two (65), the gear two (65) and the gear three (66) are meshed with each other, and the bottom edge of the gear three (66) is fixedly connected to the movable shell one (61), and the top of the outer wall of the brush shaft one (64) is provided with an outer wall cleaning brush (67), the rear side of the movable shell one (61) is fixedly connected to the telescopic rod of the electric push rod three (68), and the electric push rod three (68) is fixed to the outer side of the box body (1).

8. According to claim 2, a robot welding double-wire CMT welding gun cleaning and wire cutting device is characterized in that: The inner wall brushing assembly (9) comprises a movable shell (2) (91), a motor (4) (92), a gear (4) (93), a gear (5) (94), a brush shaft (2) (95), an inner wall cleaning brush (96), a connecting frame (97), an electric push rod (4) (98) and a partition (99). The motor (4) (92) is fixed to the middle of the bottom end of the movable shell (91). The output shaft at the top of the motor (4) (92) is connected to the center of the gear (4) (93) by transmission. The gear (5) (94) is arranged on both sides of the left and right sides of the gear (93). The gear (5) (94) and the gear (4) (93) are meshed with each other. The center of the gear (5) (94) is connected to the brush shaft (2) (95). The movable housing (91) is vertically penetrated, and the brush shaft (95) is connected to the gear (94) in a transmission manner. The bottom end of the brush shaft (95) is rotatably connected to the movable housing (91) through a bearing, and the top end of the brush shaft (95) extends out of the movable housing (91). An inner wall cleaning brush (96) is provided on the top of the outer wall of the brush shaft (95). The bottom edge of the movable housing (91) is fixedly connected to the connecting frame (97), and the bottom end of the connecting frame (97) is connected to the telescopic rod of the electric push rod (98). The electric push rod (98) is fixed to the bottom of the partition (99), and the partition (99) is fixed to the inner middle part of the support frame (10).

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