A welding robot

Abstract

The present invention relates to the field of metal welding, and specifically to a welding robot, comprising a long strip-shaped base, a No. 1 slide groove is provided on the base, the No. 1 slide groove is provided along the length direction of the base, a No. 1 screw rod is rotatably connected in the No. 1 slide groove, a No. 1 slider is threadedly connected to the No. 1 screw rod, and the No. 1 slider is slidably connected in the No. 1 slide groove; a support plate is fixedly connected to the No. 1 slider, and two placement plates arranged in a "V" shape are provided on the support plate, and the placement plates are used to place workpieces to be welded; in the present invention, the structural design of the welding robot is designed with multiple welding heads, and the angle of each welding head is adjusted to the right position in advance, and then the cylinder needs to be controlled to drive the welding head to move up and down, and accurate coverage of the weld can be achieved. Compared with existing welding equipment or devices, not only the welding quality is significantly improved, but also the welding efficiency is improved. Six weldings are performed in an assembly line manner, which is stable and orderly.

Description

Technical Field

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

[0002] Welding is an important metal connection method and is widely used in many fields. In order to enhance the strength and quality of metal parts after welding, multiple welding is performed, that is, multiple welding is performed in the area where one welding has been completed to further improve the quality and strength of the weld. In some applications where welding quality and structural strength are particularly high, such as some building structures such as steel frame welding that play a supporting role, multiple welding is required to ensure the reliability and stability of the weld.

[0003] For the above-mentioned multiple welding methods, there are more precautions to be taken during welding compared to single welding. For example, the latter weld needs to cover the two welds of the former, or cover one of the welds and a metal part groove. The angle of the welding head needs to be accurately controlled to achieve weld coverage. At present, for this multiple welding method, due to the design of the welding equipment or device structure, it is impossible to accurately achieve weld coverage and it is difficult to meet the requirements of multiple welding.

[0004] Therefore, a welding robot is proposed to solve the above problems. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: a welding robot according to the present invention comprises a long strip base, a first slide groove is provided on the base, the first slide groove is provided along the length direction of the base, a first screw rod is rotatably connected in the first slide groove, a first slider is threadedly connected on the first screw rod, and the first slider is slidably connected in the first slide groove;

[0007] The first slide block is fixedly connected with a support plate, on which two placement plates arranged in a "V" shape are provided, and the placement plates are used to place the workpiece to be welded;

[0008] A plurality of groups of vertical plates are symmetrically arranged on both sides of the base, and a base block is fixedly connected to the end of each group of vertical plates. A No. 2 slide groove is arranged on the lower surface of the base block, a No. 2 screw rod is rotatably connected in the No. 2 slide groove, a No. 2 slider is threadedly connected to the No. 2 screw rod, a cylinder is connected to the lower end surface of the No. 2 slider, and a welding module is fixedly connected to the output end of the cylinder.

[0009] Preferably, the support plate is provided with a clearance opening, which is arranged at a position below the middle of the two placement plates, and the lower edge of each placement plate is rotatably connected to the upper surface of the support plate at both sides, and the lower edge of each support plate is fixedly connected to an adjustment plate;

[0010] The lower ends of the two adjustment plates are arranged in a flared shape, and a rectangular opening is provided at the lower end of each adjustment plate. A rotating pin is rotatably connected in the rectangular opening, and a third screw rod is arranged between the two rotating pins, and the third screw rod is threadedly connected to the rotating pin.

[0011] Preferably, the No. 1 slide groove is arranged on the lower surface of the base, and the bottom of the No. 1 sliding block extends upward into the No. 1 slide groove.

[0012] Preferably, the end of the No. 3 screw rod extends to the outside of the No. 1 slider, and the end of the No. 3 screw rod is fixedly connected to a swivel, a spring is provided between the swivel and the No. 1 slider, and the spring is sleeved on the No. 3 screw rod.

[0013] Preferably, a through hole is formed on each of the placement plates, and an electromagnet is fixedly connected in the through hole, and the electromagnet is used to absorb the workpiece to be welded.

[0014] Preferably, a rotation groove is provided on the lower end surface of each of the No. 2 sliders, and a connector is provided in the rotation groove. The connector can deflect toward the vertical plates on both sides in the rotation groove. The lower end of the connector is fixedly connected to the upper end of the cylinder body of the cylinder, and top screws are threadedly connected on both sides of the cylinder body, and the top screws are pressed against the lower surface of the No. 2 slider.

[0015] Preferably, two extension plates are symmetrically arranged on the center of the upper surface of the support plate, and a touch switch is arranged on the extension plate. The touch switch is used to control the execution of the cylinder, and the contact of the touch switch faces the inner wall of the vertical plate; an extrusion plate for extruding the contact is arranged on the inner wall of each vertical plate.

[0016] Preferably, a sliding hole is provided on the upper edge of each placement plate, a sliding rod is slidably connected in the sliding hole, a support bar is fixedly connected to the end of the sliding rod, a plurality of ball grooves are provided on the support bar, and steel balls are rotatably connected in the ball grooves.

[0017] Preferably, a power supply assembly is provided under the base, and the power supply assembly includes a long strip-shaped substrate, and a plurality of conductive grooves are opened on the upper surface of the substrate. The conductive grooves are opened along the length direction of the substrate, and the notch of each conductive groove is in an inverted "T" shape. The bottom of the conductive groove is slidably connected to the wheel body, and the wheel body is connected to a wire, and the end of the wire is fixedly connected to the lower surface of the No. 1 slider.

[0018] Preferably, each of the conductive slots has symmetrically opened inner side walls, the openings are opened along the length direction of the substrate, each opening slot has a conductive plate connected to a compression spring, the outer side walls of the conductive plate are arc-shaped, a sphere is provided between two adjacent conductive plates, and the sphere is electrically connected to the wire.

[0019] The present invention is beneficial in that:

[0020] 1. In the present invention, the structural design of the welding robot is designed with multiple welding heads. The angle of each welding head is adjusted in advance. Then, the cylinder needs to be controlled to drive the welding head to move up and down, and accurate coverage of the weld can be achieved. Compared with the existing welding equipment or devices, not only the welding quality is significantly improved, but also the welding efficiency is improved. Six weldings are performed in an assembly line manner, which is stable and orderly.

[0021] 2. In the present invention, an adjustment plate is provided on each placement plate, and the adjustment plate cooperates with the No. 3 screw rod to realize the angle between the two adjustment plates, thereby controlling the angle between the two placement plates. Subsequently, workpieces with different welding angles can be placed on the two placement plates, and workpieces with different welding angles can be lifted, thereby improving the adaptability of the welding robot. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional diagram of the welding robot of the present invention;

[0023] Figure 2 A side view of the welding robot in the present invention;

[0024] Figure 3 It is a schematic diagram of the cooperation between the No. 1 slider and the base in the present invention;

[0025] Figure 4 It is a three-dimensional diagram of a slider No. 1 in the present invention;

[0026] Figure 5 It is a three-dimensional diagram of the cooperation between the cylinder and the base block in the present invention;

[0027] Figure 6 It is a schematic diagram of the cooperation between the connector and the second slider in the present invention;

[0028] Figure 7 It is a three-dimensional diagram of the cooperation between the support plate and the placement plate in the present invention;

[0029] Figure 8 It is a three-dimensional diagram of the cooperation between the placement plate and the adjustment plate in the present invention;

[0030] Fig. 9 A top view of a slider No. 1 in the present invention;

[0031] Fig.10 It is a schematic diagram of the cooperation between the base plate and the wheel body in the present invention;

[0032] Fig.11 It is a three-dimensional diagram of the cooperation between the wheel body and the conductive slot in the present invention;

[0033] Fig.12 It is a three-dimensional diagram of the coordination between the sphere and the conductive plate in the present invention;

[0034] Fig.13 It is a schematic diagram of the coordination between the sphere and the wire in the present invention;

[0035] Fig.14 This is a schematic diagram of the first welding of the workpiece in the present invention;

[0036] Fig.15 This is a schematic diagram of the second welding of the workpiece in the present invention;

[0037] Fig.16 This is a schematic diagram of the third welding of the workpiece in the present invention;

[0038] Fig.17 This is a schematic diagram of the fourth welding of the workpiece in the present invention;

[0039] Fig.18 This is a schematic diagram of the fifth welding of the workpiece in the present invention;

[0040] Fig.19 This is a schematic diagram of the sixth welding of the workpiece in the present invention.

[0041] In the figure: 101, workpiece; 1, base; 2, No. 1 slide; 3, No. 1 screw rod; 4, No. 1 slider; 5, support plate; 6, placement plate; 7, vertical plate; 8, base block; 9, No. 2 slide; 10, No. 2 screw rod; 11, No. 2 slider; 12, cylinder; 13, welding head; 14, clearance port; 15, adjustment plate; 16, rectangular port; 17, rotating pin; 18, No. 3 screw rod; 19, rotating body; 20, spring; 21, through hole; 22, electromagnet; 23, rotating groove; 24, connector; 25, top screw; 26, extension plate; 27, touch switch; 28, extrusion plate; 29, sliding rod; 30, support bar; 31, steel ball; 32, base plate; 33, conductive groove; 34, wheel body; 35, wire; 36, clearance groove; 37, conductive plate; 38, sphere. DETAILED DESCRIPTION

[0042] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0043] Reference Figure 1 - Fig.19 A welding robot comprises a long strip base 1, a first slide groove 2 is provided on the base 1, the first slide groove 2 is provided along the length direction of the base 1, a first screw rod 3 is rotatably connected in the first slide groove 2, a first slider 4 is threadedly connected on the first screw rod 3, and the first slider 4 is slidably connected in the first slide groove 2;

[0044] The first slide block 4 is fixedly connected with a support plate 5, and the support plate 5 is provided with two placement plates 6 arranged in a "V" shape, and the placement plates 6 are used to place the workpiece 101 to be welded;

[0045] A plurality of groups of vertical plates 7 are symmetrically arranged on both sides of the base 1, and a base block 8 is fixedly connected to the end of each group of vertical plates 7. A second slide groove 9 is provided on the lower surface of the base block 8, and a second screw rod 10 is rotatably connected in the second slide groove 9. A second slider 11 is threadedly connected to the second screw rod 10, and a cylinder 12 is connected to the lower end surface of the second slider 11, and a welding module is fixedly connected to the output end of the cylinder 12;

[0046] In this embodiment, the first screw rod 3 and the second screw rod 10 are both driven to rotate by a servo motor, and the servo motor is connected to the backstage central control module;

[0047] In this embodiment, carbon dioxide shielded welding can be used, and the designed welding module includes a welding head 13, which is a welding gun for carbon dioxide shielded welding;

[0048] The specific operation steps of the welding robot are as follows:

[0049] Step 1: Loading: Place two metal workpieces 101 to be welded on the placement plate 6, as shown in FIG. Fig.14 As shown, two flat metal workpieces 101, the lower edges of the workpieces 101 are processed with grooves, and the two grooves are attached together;

[0050] Step 2: welding, the first screw rod 3 rotates, and drives the workpiece 101 to move through the first slider 4, and the workpiece 101 moves from one end of the base 1 to the other end of the base 1;

[0051] Welding is divided into six welding steps:

[0052] For the first welding, when the workpiece 101 moves to the bottom of the first base block 8, the first welding is performed, and the cylinder 12 under the base block 8 is controlled. The cylinder 12 drives the welding head 13 to move downward, and the first welding is performed at the groove position. While the first slide 4 moves, the welding head 13 welds at the groove. The welding result is shown in FIG. Fig.14 As shown, weld bead A covers the groove;

[0053] For the second welding, the No. 1 slider 4 continues to move. When the No. 1 slider 4 moves to the bottom of the second base block 8, the second welding is performed. The cylinder 12 under the base block 8 is controlled. The cylinder 12 drives the welding head 13 to move downward. At this time, the angle of the cylinder 12 has been adjusted in advance so that the end of the welding head 13 can accurately align with the welding position point. The second welding is performed. While the No. 1 slider 4 moves, the welding head 13 performs welding. The welding result is shown in FIG. Fig.15 As shown, weld bead B covers one side of weld bead A and covers the side wall of the left workpiece 101;

[0054] For the third welding, the No. 1 slider 4 continues to move. When the No. 1 slider 4 moves to the bottom of the third base block 8, the third welding is performed. The cylinder 12 under the base block 8 is controlled. The cylinder 12 drives the welding head 13 to move downward. At this time, the angle of the cylinder 12 has been adjusted in advance so that the end of the welding head 13 can accurately align with the welding position point. The third welding is performed. While the No. 1 slider 4 moves, the welding head 13 performs welding. The welding result is as follows: Fig.16 As shown, weld bead C covers weld bead A, weld bead B and the surface of the right workpiece 101;

[0055] For the fourth welding, the No. 1 slider 4 continues to move. When the No. 1 slider 4 moves to the bottom of the fourth base block 8, the fourth welding is performed. The cylinder 12 under the base block 8 is controlled. The cylinder 12 drives the welding head 13 to move downward. At this time, the angle of the cylinder 12 has been adjusted in advance so that the end of the welding head 13 can be accurately aligned with the welding position point. The fourth welding is performed. While the No. 1 slider 4 moves, the welding head 13 performs welding. The welding result is as follows: Fig.17 As shown, weld bead D covers one side of weld bead B and covers the side wall of the left workpiece 101;

[0056] For the fifth welding, the No. 1 slider 4 continues to move. When the No. 1 slider 4 moves to the bottom of the fifth base block 8, the fifth welding is performed. The cylinder 12 under the base block 8 is controlled. The cylinder 12 drives the welding head 13 to move downward. At this time, the angle of the cylinder 12 has been adjusted in advance so that the end of the welding head 13 can accurately align with the welding position point. The fifth welding is performed. While the No. 1 slider 4 moves, the welding head 13 performs welding. The welding result is as follows: Fig.18 As shown, weld bead E covers weld bead B, weld bead C and weld bead D;

[0057] For the sixth welding, the No. 1 slider 4 continues to move. When the No. 1 slider 4 moves to the bottom of the sixth base block 8, the second welding is performed. The cylinder 12 under the base block 8 is controlled. The cylinder 12 drives the welding head 13 to move downward. At this time, the angle of the cylinder 12 has been adjusted in advance so that the end of the welding head 13 can accurately align with the welding position point. The sixth welding is performed. While the No. 1 slider 4 moves, the welding head 13 performs welding. The welding result is as follows: Fig.19 As shown, weld bead F covers weld bead C, weld bead E and the side wall of the right workpiece 101;

[0058] Step 3: Unloading: After six weldings are completed, the first slide block 4 moves to the other end of the base 1 to take out the welded workpiece 101;

[0059] Step 4: Reset, first place the workpiece 101 to be welded on the placement rack, then the first screw rod 3 drives the first slider 4 to quickly move from the other end of the base 1 to one end of the base 1, and then repeat the above steps 1, 2 and 3;

[0060] Step 1, step 2, step 3 and step 4 are a cycle, just repeat;

[0061] The structural design of the welding robot is designed with multiple welding heads 13. The angle of each welding head 13 is adjusted in advance. Then, the cylinder 12 needs to be controlled to drive the welding head 13 to move up and down, and accurate coverage of the weld can be achieved. Compared with existing welding equipment or devices, not only the welding quality is significantly improved, but also the welding efficiency is improved. Six weldings are performed in an assembly line manner, which is stable and orderly.

[0062] Reference Figure 1 - Fig. 9 The support plate 5 is provided with a clearance opening 14, which is arranged at a position below the middle of the two placement plates 6, and the lower edge of each placement plate 6 is rotatably connected to the upper surface of the support plate 5 on both sides, and the lower edge of each support plate 5 is fixedly connected to an adjustment plate 15;

[0063] The lower ends of the two adjustment plates 15 are flared, and a rectangular opening 16 is formed at the lower end of each adjustment plate 15. A rotating pin 17 is rotatably connected in the rectangular opening 16. A third screw rod 18 is provided between the two rotating pins 17, and the third screw rod 18 is threadedly connected to the rotating pin 17.

[0064] An adjustment plate 15 is provided on each placement plate 6, and the adjustment plate 15 cooperates with the third screw rod 18 to realize the angle between the two adjustment plates 15, thereby controlling the angle between the two placement plates 6, and then the workpieces 101 with different welding angles can be placed on the two placement plates 6;

[0065] By rotating the No. 3 screw rod 18, the No. 3 screw rod 18 drives the swivel pin 17 to move relatively along the axial direction of the No. 3 screw rod 18. At the same time, the two ends of the swivel pin 17 are rotatably connected in the rectangular opening 16. The swivel pin 17 will automatically rotate to adapt to the deflection of the adjustment plate 15. The adjustment plate 15 deflects around the rotation connection of the placement plate 6, thereby driving the placement plate 6 to deflect, so that the two placement plates 6 form placement areas with different angles, that is, they hold up workpieces 101 with different welding angles, thereby improving the adaptability of the welding robot.

[0066] Reference Figure 1 - Figure 7 The first slide groove 2 is arranged on the lower surface of the base 1, and the bottom of the first slide block 4 extends upward into the first slide groove 2;

[0067] When placing the workpiece 101, some foreign matter on the workpiece 101 may fall along the clearance opening 14. At the same time, the particles generated during the welding of the workpiece 101 may also fall along the clearance opening 14. If these foreign matter or particles fall onto the No. 1 screw rod 3, it will hinder the operation between the No. 1 screw rod 3 and the No. 2 slider 4. For this reason, the No. 1 slide groove 2 is set on the lower surface of the base 1, which can prevent foreign matter or particles from falling onto the No. 1 screw rod 3, thereby improving the protection of the smooth movement of the No. 1 slider 4.

[0068] Reference Figure 1 - Figure 3 The end of the third screw rod 18 extends to the outside of the first slider 4, and a swivel 19 is fixed to the end of the third screw rod 18. A spring 20 is provided between the swivel 19 and the first slider 4, and the spring 20 is sleeved on the third screw rod 18;

[0069] The third screw rod 18 is threadedly connected to the swivel pin 17, and the third screw rod 18 passes through the outer side of the first slider 4. The third screw rod 18 rotates without restraint. After the first slider 4 moves back and forth many times, the vibration generated will cause the third screw rod 18 to rotate on its own, and the dead weight of the workpiece 101 presses down the placement plate 6, so that the angle enclosed by the two placement plates 6 has a tendency to expand on its own. For this reason, it is necessary to stabilize the third screw rod 18, and a spring 20 is provided. The extrusion force of the spring 20 is used on the swivel 19 and the first slider 4. The spring 20 increases the resistance of the third screw rod 18 when it rotates on its own, and stabilizes the placement plate 6.

[0070] Reference Figure 1 - Figure 8 A through hole 21 is formed on each of the placement plates 6, and an electromagnet 22 is fixedly connected in the through hole 21, and the electromagnet 22 is used to absorb the workpiece 101 to be welded;

[0071] An electromagnet 22 is arranged on the placement plate 6. The electromagnet is used to adsorb the workpiece 101, improve the stability of the workpiece 101, and can support a larger plate-shaped workpiece 101. The electromagnet can obtain magnetism when it is energized, and adsorb the workpiece 101. When the welding robot is running, only in step 3 of unloading, the electromagnet is not energized, and the electromagnet is continuously energized in the remaining steps 1, 2, and 4.

[0072] In step 4, the electromagnet is energized to attract the workpiece 101. At this time, the rotation speed of the No. 1 screw rod 3 can be increased, thereby increasing the movement and reset speed of the No. 1 slider 4, and correspondingly improving the overall welding efficiency of the welding robot.

[0073] Reference Figure 1 - Figure 6A rotation groove 23 is formed on the lower end surface of each of the second sliders 11, and a connecting body 24 is provided in the rotation groove 23. The connecting body 24 can deflect toward the vertical plates 7 on both sides in the rotation groove 23. The lower end of the connecting body 24 is fixedly connected to the upper end of the cylinder body of the cylinder 12. The two sides of the cylinder body are threadedly connected with a top screw 25, and the top screw 25 presses against the lower surface of the second slider 11;

[0074] Rotate the top screw 25 to control the up and down movement of the top screws 25 on both sides of the cylinder 12, so that the connector 24 deflects in the rotating groove 23, thereby controlling the deflection angle of the cylinder 12, thereby controlling the angle of the welding head 13, and then welding welds of different angles to increase the welding angle range.

[0075] Reference Figure 1 - Fig. 9 Two extension plates 26 are symmetrically arranged on the upper surface of the support plate 5, and a touch switch 27 is arranged on the extension plate 26. The touch switch 27 is used to control the execution of the cylinder 12, and the contact of the touch switch 27 faces the inner wall of the vertical plate 7; each of the vertical plates 7 is provided with a squeezing plate 28 for squeezing the contact on the inner wall;

[0076] A touch switch 27 is set to cooperate with the background central control module and is used to control the execution of each cylinder 12. When the No. 1 slider 4 is about to move to the bottom of one of the cylinders 12, the touch switch 27 on the extension plate 26 first contacts the extrusion plate 28 on the vertical plate 7 where the cylinder 12 is located. The extrusion plate 28 squeezes the contact, and the touch switch 27 cooperates with the background central control module to control the execution of the cylinder 12. The cylinder 12 drives the welding head 13 to move downward. When the welding head 13 moves to the specified height, the edge of the position to be welded on the workpiece 101 is accurately moved to the position below the welding head 13, and then welding is performed directly without waiting for the cylinder 12 to drive the welding head 13 to move downward, thereby saving time and improving efficiency.

[0077] Reference Figure 1 - Figure 8 A sliding hole is provided on the upper edge of each of the placement plates 6, and a sliding rod 29 is slidably connected in the sliding hole. A support bar 30 is fixedly connected to the end of the sliding rod 29. A plurality of ball grooves are provided on the support bar 30, and a steel ball 31 is rotatably connected in the ball groove;

[0078] A slide bar 29 is arranged on the placement plate 6 to cooperate with the support bar 30. The slide bar 29 is pulled out, and the support bar 30 holds up the back of the workpiece 101 to improve the stability of the workpiece 101. At the same time, the support bar 30 is provided with a steel ball 31, which can convert the sliding friction between the support bar 30 and the workpiece 101 into a rolling friction between the steel ball 31 and the workpiece 101, thereby reducing the friction resistance and making it easier to pull and retract the support bar 30.

[0079] Reference Figure 1 - Fig.13A power supply assembly is provided below the base 1, and the power supply assembly includes a long strip substrate 32, and a plurality of conductive slots 33 are provided on the upper surface of the substrate 32, and the conductive slots 33 are provided along the length direction of the substrate 32, and each conductive slot 33 is in an inverted "T" shape, and the bottom of the conductive slot 33 is slidably connected to a wheel body 34, and a wire 35 is connected to the wheel body 34, and the end of the wire 35 is fixedly connected to the lower surface of the first slider 4;

[0080] The power supply assembly is used to supply power and control the touch switch 27 and the electromagnet; the No. 1 slider 4 is slidably connected to the base 1, and the stability of the electrical connection needs to be considered. For this purpose, a wheel body 34 and a conductive slot 33 are provided. The wheel body 34 is made of a conductive material, and the wheel body 34 is electrically connected to the wire 35. When the No. 1 slider 4 moves, the No. 1 slider 4 drags the wheel body 34 to rotate and slide in the conductive slot 33 through the wire 35. The wheel body 34 can continue to contact the conductive slot 33 to ensure stable electrical transmission.

[0081] Reference Figure 1 - Fig.13 A symmetrically arranged clearance groove 36 is formed on the inner side wall of each conductive groove 33. The clearance groove 36 is formed along the length direction of the substrate 32. A conductive plate 37 connected to a compression spring is disposed in each clearance groove 36. The outer side wall of the conductive plate 37 is in an arc shape. A sphere 38 is disposed between two adjacent conductive plates 37. The sphere 38 is electrically connected to the wire 35.

[0082] In order to further improve the stable transmission of electricity, a sphere 38 and a conductive plate 37 are provided. The sphere 38 is made of a conductive material and is slidably connected between two adjacent conductive plates 37. The conductive plate 37 is connected to the give way groove 36 through a compression spring. The elastic force of the compression spring causes the conductive plate 37 to be squeezed onto the sphere 38, thereby improving the electrical connection stability between the wire 35 and the conductive groove 33.

[0083] Working principle:

[0084] The specific operation steps of the welding robot are as follows:

[0085] Step 1: Loading: Place two metal workpieces 101 to be welded on the placement plate 6, as shown in FIG. Fig.14 As shown, two flat metal workpieces 101, the lower edges of the workpieces 101 are processed with grooves, and the two grooves are attached together;

[0086] Step 2: welding, the first screw rod 3 rotates, and drives the workpiece 101 to move through the first slider 4, and the workpiece 101 moves from one end of the base 1 to the other end of the base 1;

[0087] Welding is divided into six welding steps:

[0088] For the first welding, when the workpiece 101 moves to the bottom of the first base block 8, the first welding is performed, and the cylinder 12 under the base block 8 is controlled. The cylinder 12 drives the welding head 13 to move downward, and the first welding is performed at the groove position. While the first slide 4 moves, the welding head 13 welds at the groove. The welding result is shown in FIG. Fig.14 As shown, weld bead A covers the groove;

[0089] For the second welding, the No. 1 slider 4 continues to move. When the No. 1 slider 4 moves to the bottom of the second base block 8, the second welding is performed. The cylinder 12 under the base block 8 is controlled. The cylinder 12 drives the welding head 13 to move downward. At this time, the angle of the cylinder 12 has been adjusted in advance so that the end of the welding head 13 can accurately align with the welding position point. The second welding is performed. While the No. 1 slider 4 moves, the welding head 13 performs welding. The welding result is shown in FIG. Fig.15 As shown, weld bead B covers one side of weld bead A and covers the side wall of the left workpiece 101;

[0090] For the third welding, the No. 1 slider 4 continues to move. When the No. 1 slider 4 moves to the bottom of the third base block 8, the third welding is performed. The cylinder 12 under the base block 8 is controlled. The cylinder 12 drives the welding head 13 to move downward. At this time, the angle of the cylinder 12 has been adjusted in advance so that the end of the welding head 13 can accurately align with the welding position point. The third welding is performed. While the No. 1 slider 4 moves, the welding head 13 performs welding. The welding result is as follows: Fig.16 As shown, weld bead C covers weld bead A, weld bead B and the surface of the right workpiece 101;

[0091] For the fourth welding, the No. 1 slider 4 continues to move. When the No. 1 slider 4 moves to the bottom of the fourth base block 8, the fourth welding is performed. The cylinder 12 under the base block 8 is controlled. The cylinder 12 drives the welding head 13 to move downward. At this time, the angle of the cylinder 12 has been adjusted in advance so that the end of the welding head 13 can be accurately aligned with the welding position point. The fourth welding is performed. While the No. 1 slider 4 moves, the welding head 13 performs welding. The welding result is as follows: Fig.17 As shown, weld bead D covers one side of weld bead B and covers the side wall of the left workpiece 101;

[0092] For the fifth welding, the No. 1 slider 4 continues to move. When the No. 1 slider 4 moves to the bottom of the fifth base block 8, the fifth welding is performed. The cylinder 12 under the base block 8 is controlled. The cylinder 12 drives the welding head 13 to move downward. At this time, the angle of the cylinder 12 has been adjusted in advance so that the end of the welding head 13 can accurately align with the welding position point. The fifth welding is performed. While the No. 1 slider 4 moves, the welding head 13 performs welding. The welding result is as follows: Fig.18 As shown, weld bead E covers weld bead B, weld bead C and weld bead D;

[0093] For the sixth welding, the No. 1 slider 4 continues to move. When the No. 1 slider 4 moves to the bottom of the sixth base block 8, the second welding is performed. The cylinder 12 under the base block 8 is controlled. The cylinder 12 drives the welding head 13 to move downward. At this time, the angle of the cylinder 12 has been adjusted in advance so that the end of the welding head 13 can accurately align with the welding position point. The sixth welding is performed. While the No. 1 slider 4 moves, the welding head 13 performs welding. The welding result is as follows: Fig.19 As shown, weld bead F covers weld bead C, weld bead E and the side wall of the right workpiece 101;

[0094] Step 3: Unloading: After six weldings are completed, the first slide block 4 moves to the other end of the base 1 to take out the welded workpiece 101;

[0095] Step 4: Reset, first place the workpiece 101 to be welded on the placement rack, then the first screw rod 3 drives the first slider 4 to quickly move from the other end of the base 1 to one end of the base 1, and then repeat the above steps 1, 2 and 3;

[0096] Step 1, step 2, step 3 and step 4 constitute a cycle, which can be repeated.

[0097] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A welding robot, characterized in that: The invention comprises a long strip-shaped base (1), a first slide groove (2) is provided on the base (1), the first slide groove (2) is provided along the length direction of the base (1), a first screw rod (3) is rotatably connected in the first slide groove (2), a first slider (4) is threadedly connected on the first screw rod (3), and the first slider (4) is slidably connected in the first slide groove (2); The first slide block (4) is fixedly connected to a support plate (5), and the support plate (5) is provided with two placement plates (6) arranged in a "V" shape, and the placement plates (6) are used to place the workpiece (101) to be welded; A plurality of groups of vertical plates (7) are symmetrically arranged on both sides of the base (1), and a base block (8) is fixedly connected to the end of each group of vertical plates (7). A second slide groove (9) is provided on the lower surface of the base block (8), a second screw rod (10) is rotatably connected in the second slide groove (9), a second slider (11) is threadedly connected to the second screw rod (10), a cylinder (12) is connected to the lower end surface of the second slider (11), and a welding module is fixedly connected to the output end of the cylinder (12); The support plate (5) is provided with a clearance opening (14), which is arranged at a position below the middle of the two placement plates (6), and the lower edge of each placement plate (6) is rotatably connected to the upper surface of the support plate (5) on both sides, and the lower edge of each support plate (5) is fixedly connected to an adjustment plate (15); The lower ends of the two adjustment plates (15) are arranged in a flared shape, and a rectangular opening (16) is provided at the lower end of each adjustment plate (15). A rotating pin (17) is rotatably connected in the rectangular opening (16), and a third screw rod (18) is arranged between the two rotating pins (17), and the third screw rod (18) is threadedly connected to the rotating pin (17); The first slide groove (2) is arranged on the lower surface of the base (1), and the bottom of the first slide block (4) extends upward into the first slide groove (2); A rotation groove (23) is provided on the lower end surface of each of the second sliders (11), and a connecting body (24) is provided in the rotation groove (23). The connecting body (24) can deflect in the rotation groove (23) toward the vertical plates (7) on both sides. The lower end of the connecting body (24) is fixedly connected to the upper end of the cylinder body of the cylinder (12), and the two sides of the cylinder body are threadedly connected with a top screw (25), and the top screw (25) presses against the lower surface of the second slider (11); A power supply assembly is provided below the base (1), the power supply assembly comprising a long strip-shaped substrate (32), a plurality of conductive slots (33) are provided on the upper surface of the substrate (32), the conductive slots (33) are provided along the length direction of the substrate (32), the notch of each conductive slot (33) is in an inverted "T" shape, the bottom of the conductive slot (33) is slidably connected to a wheel body (34), a wire (35) is connected to the wheel body (34), and the end of the wire (35) is fixedly connected to the lower surface of the first slider (4); Each of the conductive slots (33) has a symmetrically arranged inner wall thereof, the symmetrically arranged inner wall thereof being arranged along the length direction of the substrate (32), a conductive plate (37) connected by a compression spring in each symmetrically arranged inner wall thereof being in an arc shape, a sphere (38) being arranged between two adjacent conductive plates (37), and the sphere (38) being electrically connected to the conductive wire (35).

2. A welding robot according to claim 1, characterized in that: The end of the third screw rod (18) extends to the outside of the first slider (4), and the end of the third screw rod (18) is fixedly connected to a swivel (19), a spring (20) is provided between the swivel (19) and the first slider (4), and the spring (20) is sleeved on the third screw rod (18).

3. A welding robot according to claim 1, characterized in that: A through hole (21) is provided on each of the placement plates (6), an electromagnet (22) is fixedly connected in the through hole (21), and the electromagnet (22) is used to absorb the workpiece (101) to be welded.

4. A welding robot according to claim 1, characterized in that: Two extension plates (26) are symmetrically arranged on the center of the upper surface of the support plate (5), and a touch switch (27) is arranged on the extension plate (26). The touch switch (27) is used to control the execution of the cylinder (12), and the contact of the touch switch (27) faces the inner wall of the vertical plate (7); and a pressing plate (28) for pressing the contact is arranged on the inner wall of each vertical plate (7).

5. A welding robot according to claim 3, characterized in that: A sliding hole is provided on the upper edge of each placement plate (6), a sliding rod (29) is slidably connected in the sliding hole, a support bar (30) is fixedly connected to the end of the sliding rod (29), a plurality of ball grooves are provided on the support bar (30), and steel balls (31) are rotatably connected in the ball grooves.

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