Automatic welding equipment for special vehicle tank production

Abstract

The invention discloses automatic welding equipment for special vehicle tank production, and relates to the technical field of special vehicle tank welding, the automatic welding equipment comprises a displacement device, an auxiliary device and a welding robot, the welding robot is arranged on one side of the displacement device, and the output end of the welding robot is in transmission connection with the auxiliary device; a welding head is arranged at the output end of the welding robot, the displacement device is used for clamping a tank body, the tank body is clamped and fixed through the displacement device, the tank body is ensured to be welded stably during longitudinal seam welding, the tank body is driven to rotate during annular welding, and the welding robot welds the tank body through the welding head. And the tank welding diversity of the special vehicle is improved. And the welding quality is detected in real time through the auxiliary device, so that the welding quality is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of special vehicle tank body welding, in particular to an automatic welding device for special vehicle tank body production. Background Art

[0002] Special-purpose vehicle tank bodies generally refer to tank bodies used in vehicles with special functions, such as sprinkler trucks, transport tank trucks, tank-type dust particle special vehicles, etc. In order to ensure the stability of the transportation process, the welding quality requirements for special-purpose vehicle tank bodies are relatively strict.

[0003] Due to the different working conditions of special vehicle tanks, the shapes of tanks are also varied, including cylindrical, elliptical, and special-shaped structures, etc., which greatly increases the difficulty of welding. The current tank welding equipment uses manual or semi-automatic forms. The tanks are of different sizes. In the welding process of small tanks, manual welding is mostly relied on. Due to the technical level of the operators, the welding quality cannot be guaranteed. In the process of welding large tanks, manual welding is difficult due to the large size of the tanks, and safety cannot be guaranteed during the climbing process.

[0004] In addition, in order to ensure the high sealing of the tank body, the quality of the welding needs to be tested. When poor welding is found, it is necessary to re-clamp and reposition before welding, which greatly affects the welding efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic welding device for producing a special vehicle tank body, so as to solve the problems raised in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions: The invention discloses an automated welding equipment for producing special vehicle tank bodies. The automated welding equipment comprises a positioner, an auxiliary device and a welding robot. A welding robot is arranged on one side of the positioner. The output end of the welding robot is transmission-connected with the auxiliary device. A welding head is arranged on the output end of the welding robot. The positioner is used for clamping the tank body.

[0007] The tank body is clamped and fixed by the displacement device. When the longitudinal seam is welded, the tank body welding is ensured to be stable. When the circumferential welding is performed, the tank body is driven to rotate. The welding robot welds the tank body through the welding head. Through multi-mode welding, the tank body welding diversity of special vehicles is improved. The welding quality is detected in real time through auxiliary devices to ensure the welding quality.

[0008] Furthermore, the displacement device includes a support platform and a clamp, and the clamp is provided with two groups, the outer sides of the two groups of clamps are rotatably connected to the support platform, and the inner sides of the two groups of clamps are respectively in contact with the tank body; The auxiliary device includes a detection component and a mounting seat. The mounting seat is tightly connected to the output end of the welding robot. A through hole is set on the mounting seat. The welding head passes through the through hole on the mounting seat. The detection component is tightly connected to the mounting seat. The detection component includes a pressure-sensitive sheet, a hammer motor, a hammer and a rotating shaft. The hammer motor is tightly connected to the mounting seat. The output end of the hammer motor is connected to the hammer through the rotating shaft. The hammering point of the hammer faces the tank body, the pressure-sensitive sheet abuts against the surface of the tank body, and the hammering points of the pressure-sensitive sheet and the hammer are respectively located on both sides of the tank body weld. The pressure-sensitive sheet is made of piezoelectric ceramic.

[0009] The support table is used as the main supporting foundation for installing the clamp. Two symmetrically arranged clamps are used to clamp the two sides of the tank body respectively. When performing circumferential welding, the tank body is driven to rotate by the clamp, so as to facilitate the welding of the circumferential seam of the tank body. The mounting base is fixed to the output end of the welding robot, and is used to fix the detection component. At the same time, it can move with the welding head. After the welding is completed, the hammer motor fixed on the mounting base outputs torque to drive the shaft to rotate. During the rotation of the shaft, the hammer is driven to hammer to a position close to the weld. The hammering points of the pressure-sensitive sheet and the hammer are located on both sides of the weld. The pressure-sensitive sheet is crimped to the surface of the tank body. When the hammer hits the tank body, vibration is generated. When the welding quality is good, that is, the overall rigidity of both sides of the weld is large, the vibration attenuation transmitted to the bottom of the pressure-sensitive sheet is small, and the pressure-sensitive sheet is pressed against the surface of the tank body by a certain pressure, vibrating. It will cause a micro-displacement on the surface of the tank, thereby changing the pressure of the tank on the pressure-sensitive plate. The smaller the vibration attenuation, the greater the pressure transmitted to the pressure-sensitive plate. Under the action of mechanical stress, the relative displacement of the internal positive and negative charge centers is polarized, resulting in a piezoelectric effect, which draws out the current on the pressure-sensitive plate and uses it as a detection current. The greater the pressure, the greater the current generated. When a cold weld occurs or the welding is incomplete, the vibration attenuation is severe due to the poor connection quality at this time, so that the amplitude transmitted to the tank under the pressure-sensitive plate is low, the pressure on the pressure-sensitive plate is reduced, and the detection current is reduced, thereby performing real-time detection of the welding quality.

[0010] Furthermore, the detection component also includes a slide plate, a transmission groove is provided on the hammer, and clamping grooves are respectively provided on both sides of the hammer. The two ends of the slide plate pass through the transmission groove and the clamping groove for sliding connection. A clamping spring is provided in the clamping groove. The clamping spring abuts against the slide plate on one side away from the clamping groove, and is firmly connected to the slide plate on one side of the rotating shaft.

[0011] By setting a slide plate, both ends of which are clamped in the slots, when the shaft rotates, the slide plate drives the hammer to rotate and hammer on the tank body. Under the elastic force of the compression spring, as the shaft rotates further, the hammer abuts against the surface of the tank body, pushing the hammer to move away from the surface of the tank body and overcomes the force of the compression spring, so that the compression spring is further compressed. After passing the hammering point, the compression spring releases the elastic force and pushes the hammer to reset, thereby facilitating continuous striking. The transmission groove on the hammer is eccentrically set, with the long end close to the hammering point and the other end as the short end. The length of the long end is the farthest point from the wall of the transmission groove to the hammering point, which is recorded as the hammering length. The hammering length is less than the straight-line distance from the axis of the shaft to the tank body to prevent motion interference.

[0012] Furthermore, the outer side of the hammer is arranged in an arc shape.

[0013] By setting the hammer in an arc shape, the local stress on the hammering point of the tank can be reduced to prevent damage.

[0014] Furthermore, the auxiliary device also includes an adjusting component, which includes a transmission plate, a pressure-regulating cylinder and an elastic metal sheet. The pressure-regulating cylinder is tightly connected to the mounting seat, the output end of the pressure-regulating cylinder is tightly connected to the pressure-sensitive sheet, a transmission plate is provided on one side of the pressure-regulating cylinder, the elastic metal sheet is arranged in an arc shape, one end of the elastic metal sheet is tightly connected to the transmission plate, and the other end abuts against the outer circle of the tank.

[0015] By setting an adjustment component to detect the curvature of the tank surface in real time, it is convenient to adjust the rotation speed of the tank and ensure the uniformity of welding. The elastic metal sheet is initially in an arc shape, with one end fixed on the transmission plate and the other end abutting against the tank surface. The abutment point is located on the side of the position to be welded. When the curvature of the tank remains unchanged, the elastic metal sheet always fits the tank surface, and the clamp drives the tank to rotate at a constant speed. When the curvature of the tank increases, the elastic metal sheet is driven to deform toward the transmission plate. The deformation amount of the elastic metal sheet is positively correlated with the curvature of the tank, that is, the greater the curvature of the tank, the greater the deformation amount of the elastic metal sheet.

[0016] Furthermore, the adjustment component also includes a push rod and an induction coil. An induction slot is provided on the transmission plate, and the induction coil is placed in the induction slot. One end of the push rod is transmission-connected to the elastic metal sheet, and the other end is inserted into the induction slot. The axis of the push rod and the axis of the induction coil are colinear. The push rod is made of a magnetic material. The push rod and the notch of the induction slot are slidingly connected. A slide slot is provided on the elastic metal sheet, and the slide slot has a stepped cross-section. One end of the push rod is inserted into the slide slot, and the push rod and the slide slot are slidingly connected.

[0017] When the elastic metal sheet is deformed, the push rod is driven through the slide groove and the push rod to move along the axis, and the induction coil cuts the magnetic flux lines and generates an induced current. That is, the greater the curvature of the tank body, the greater the induced current. During the deformation of the elastic metal sheet, the push rod slides in the slide groove to prevent movement interference. The push rod is limited by the stepped setting of the slide groove cross section. That is, when the elastic metal sheet is reset, the push rod is driven to move in the direction close to the elastic metal sheet, thereby automatically resetting, facilitating continuity detection and improving detection efficiency.

[0018] As an optimization, the induction coil and the push rod form an induction circuit, and the pressure regulating cylinder is electrically connected to the induction circuit. According to the magnitude of the current in the induction circuit, the magnitude of the current input to the pressure regulating cylinder is automatically adjusted, that is, when the curvature is greater, the current in the induction circuit is greater, and the output displacement of the pressure regulating cylinder is greater, thereby ensuring that the pressure of the pressure sensing piece on the surface of the tank body tends to be consistent, and improving the detection accuracy.

[0019] As an optimization, the displacement device also includes a driving motor, the driving motor is tightly connected to the support platform, the output end of the driving motor is connected to the clamp transmission, and the driving motor is electrically connected to the induction circuit. Two driving cavities are set on the support platform, and the driving motor is placed in the driving cavity. Through transmission, the two clamps are driven to rotate, thereby clamping the tank body and driving the tank body to rotate.

[0020] As an optimization, the automated welding equipment also includes a track, which is located on one side of the support platform. The track is used to move the welding robot, and the track output displacement direction is parallel to the axis direction of the tank body. By setting the track, the welding robot is driven to move linearly, so as to facilitate the longitudinal seam welding of the tank body.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: after welding is completed, the torque is output by the hammer motor fixed on the mounting base to drive the rotating shaft to rotate. During the rotation of the rotating shaft, the hammer is driven to hammer to a position close to the weld, and the hammering points of the pressure-sensitive sheet and the hammer are located on both sides of the weld. The pressure-sensitive sheet is crimped to the surface of the tank body. When the hammer hammers onto the tank body, vibration is generated. When the welding quality is good, that is, the overall rigidity of both sides of the weld is large, the vibration attenuation transmitted to the bottom of the pressure-sensitive sheet is small, and the pressure-sensitive sheet is pressed against the surface of the tank body by a certain pressure, and the vibration will drive the surface of the tank body to produce micro-displacement , so that the pressure of the tank body on the pressure-sensitive piece changes. The smaller the vibration attenuation, the greater the pressure transmitted to the pressure-sensitive piece. Under the action of mechanical stress, the relative displacement of the internal positive and negative charge centers is polarized, resulting in a piezoelectric effect, which draws out the current on the pressure-sensitive piece as the detection current. The greater the pressure, the greater the current generated. When a cold weld occurs or the welding is incomplete, the vibration attenuation is severe due to the poor connection quality at this time, so that the amplitude transmitted to the tank body under the pressure-sensitive piece is low, the pressure on the pressure-sensitive piece is reduced, and the detection current is reduced, thereby performing real-time detection of the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the present invention; Figure 3 It is a structural schematic diagram of the present invention; Figure 4 It is a structural schematic diagram of the present invention; Figure 5 It is a structural schematic diagram of the present invention; Figure 6 It is a structural schematic diagram of the present invention.

[0023] In the figure: 1. displacement device; 11. support table; 12. fixture; 13. driving motor; 2. auxiliary device; 21. detection component; 211. pressure-sensitive sheet; 212. hammer motor; 213. hammer; 2131. transmission slot; 2132. card slot; 214. rotating shaft; 215. slide plate; 216. clamping spring; 22. adjustment component; 221. transmission plate; 2211. induction slot; 222. pressure-regulating cylinder; 223. elastic metal sheet; 2231. slide slot; 224. ejector rod; 225. induction coil; 23. mounting seat; 3. welding robot; 4. track; 5. tank body; 6. welding head. DETAILED DESCRIPTION

[0024] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0025] Example: Figure 1-Figure 6 As shown, the present invention provides a technical solution for automated welding equipment for producing special vehicle tank bodies.

[0026] An automated welding device for producing special vehicle tank bodies, the automated welding device comprising a displacement device 1, an auxiliary device 2 and a welding robot 3. The welding robot 3 is provided on one side of the displacement device 1, the output end of the welding robot 3 is transmission-connected to the auxiliary device 2, the output end of the welding robot 3 is provided with a welding head 6, and the displacement device 1 is used for clamping the tank body 5.

[0027] The tank body 5 is clamped and fixed by the displacement device 1. When performing longitudinal seam welding, the tank body 5 is ensured to be welded stably. When performing circumferential welding, the tank body 5 is driven to rotate. The welding robot 3 welds the tank body 5 through the welding head 6. Through multi-mode welding, the welding diversity of the tank body 5 of the special vehicle is improved. The auxiliary device 2 detects the welding quality in real time to ensure the welding quality.

[0028] Furthermore, the displacement device 1 includes a support platform 11 and a clamp 12. The clamp 12 is provided with two groups. The outer sides of the two groups of clamps 12 are rotatably connected to the support platform 11, and the inner sides of the two groups of clamps 12 are respectively in contact with the tank body 5. The auxiliary device 2 includes a detection component 21 and a mounting seat 23. The mounting seat 23 is tightly connected to the output end of the welding robot 3. A through hole is set on the mounting seat 23. The welding head 6 passes through the through hole on the mounting seat 23. The detection component 21 is tightly connected to the mounting seat 23. The detection component 21 includes a pressure-sensitive sheet 211, a hammer motor 212, a hammer 213 and a rotating shaft 214. The hammer motor 212 is tightly connected to the mounting seat 23. The output end of the hammer motor 212 is connected to the hammer 213 through the rotating shaft 214. The hammering point of the hammer 213 faces the tank body 5. The pressure-sensitive sheet 211 abuts against the surface of the tank body 5. The hammering points of the pressure-sensitive sheet 211 and the hammer 213 are respectively located on both sides of the weld of the tank body 5. The pressure-sensitive sheet 211 is made of piezoelectric ceramic.

[0029] The support platform 11 is used as the main support base for installing the clamp 12. The two symmetrically arranged clamps 12 are used to clamp the two sides of the tank body 5 respectively. When performing circumferential welding, the tank body 5 is driven to rotate by the clamp 12, so as to facilitate the welding of the circumferential seam of the tank body 5. The mounting seat 23 is fixed to the output end of the welding robot 3, and is used to fix the detection component 21. At the same time, it can move with the welding head 6. After the welding is completed, the hammer motor 212 fixed on the mounting seat 23 outputs torque to drive the rotating shaft 214 to rotate. During the rotation of the rotating shaft 214, the hammer 213 is driven to hammer to a position close to the weld. The hammering points of the pressure-sensitive sheet 211 and the hammer 213 are located on both sides of the weld. The pressure-sensitive sheet 211 is pressed against the surface of the tank body 5. When the hammer 213 hammers on the tank body 5, vibration is generated. When the welding quality is good, that is, the overall rigidity of the two sides of the weld is large, the vibration attenuation transmitted to the bottom of the pressure-sensitive sheet 211 is small, and the pressure-sensitive sheet 211 is certain The pressure is applied to the surface of the tank body, and the vibration will drive the surface of the tank body 5 to produce a micro-displacement, thereby causing the pressure of the tank body 5 on the pressure-sensitive plate 211 to change. The smaller the vibration attenuation, the greater the pressure transmitted to the pressure-sensitive plate 211. Under the action of mechanical stress, the relative displacement of the internal positive and negative charge centers is polarized, resulting in a piezoelectric effect, which draws out the current on the pressure-sensitive plate 211 as a detection current. The greater the pressure, the greater the current generated. When a cold weld occurs or the welding is incomplete, the vibration attenuation is severe due to the poor connection quality at this time, so that the amplitude transmitted to the tank body 5 under the pressure-sensitive plate 211 is low, the pressure on the pressure-sensitive plate 211 is reduced, and the detection current is reduced, thereby performing real-time detection of the welding quality.

[0030] Furthermore, the detection component 21 also includes a slide plate 215, a transmission groove 2131 is provided on the hammer 213, and slots 2132 are respectively provided on both sides of the hammer 213. The two ends of the slide plate 215 pass through the transmission groove 2131 and the slots 2132 for sliding connection. A clamping spring 216 is provided in the slot 2132. The clamping spring 216 abuts against the slide plate 215 on the side away from the slot 2132, and the side of the rotating shaft 214 is tightly connected to the slide plate 215.

[0031] By setting a slide plate 215, both ends of which are clamped in the slot 2132, when the shaft 214 rotates, the hammer 213 is driven to rotate through the slide plate 215 and hammers on the tank body 5. Under the elastic force of the compression spring 216, as the shaft 214 rotates further, the hammer 213 pushes the hammer 213 to move away from the surface of the tank body 5 under the action of the abutment of the surface of the tank body 5, and overcomes the force of the compression spring 216, so that the compression spring 216 is further compressed. After passing the hammering point, the compression spring 216 releases the elastic force and pushes the hammer 213 to reset, thereby facilitating continuous knocking. The transmission slot 2131 on the hammer 213 is eccentrically arranged, with the long end near the hammering point and the other end being the short end. The length of the long end is the distance from the wall of the transmission slot 2131 to the farthest point near the hammering point, which is recorded as the hammering length. The hammering length is less than the straight-line distance from the axis of the shaft 214 to the tank body 5 to prevent motion interference.

[0032] Furthermore, the outer side of the hammer 213 is arranged in an arc shape.

[0033] The arc-shaped setting of the hammer 213 can reduce the local stress on the hammering point of the tank body 5 to prevent damage.

[0034] Furthermore, the auxiliary device 2 also includes an adjusting component 22, which includes a transmission plate 221, a pressure-regulating cylinder 222 and an elastic metal sheet 223. The pressure-regulating cylinder 222 is fastened to the mounting seat 23, the output end of the pressure-regulating cylinder 222 is fastened to the pressure-sensitive sheet 211, a transmission plate 221 is provided on one side of the pressure-regulating cylinder 222, the elastic metal sheet 223 is arranged in an arc shape, one end of the elastic metal sheet 223 is fastened to the transmission plate 221, and the other end abuts against the outer circle of the tank body 5.

[0035] By setting the adjustment component 22, the surface curvature of the tank body 5 is detected in real time, so as to facilitate the adjustment of the rotation speed of the tank body 5 and ensure the uniformity of welding. The elastic metal sheet 223 is initially in an arc shape, with one end fixed on the transmission plate 221 and the other end abutting against the surface of the tank body 5, and the abutting point is located on the side of the position to be welded. When the curvature of the tank body 5 remains unchanged, the elastic metal sheet 223 is always attached to the surface of the tank body 5, and the clamp 12 drives the tank body 5 to rotate at a uniform speed. When the curvature of the tank body 5 increases, the elastic metal sheet 223 is driven to deform toward the side of the transmission plate 221. The deformation amount of the elastic metal sheet 223 is positively correlated with the curvature of the tank body 5, that is, the greater the curvature of the tank body 5, the greater the deformation amount of the elastic metal sheet 223.

[0036] Furthermore, the adjustment component 22 also includes a push rod 224 and an induction coil 225. The transmission plate 221 is provided with an induction groove 2211, and the induction coil 225 is placed in the induction groove 2211. One end of the push rod 224 is transmission-connected to the elastic metal sheet 223, and the other end is inserted into the induction groove 2211. The axis of the push rod 224 and the axis of the induction coil 225 are colinear. The push rod 224 is made of a magnetic material. The push rod 224 and the notch of the induction groove 2211 are slidably connected. A slide groove 2231 is provided on the elastic metal sheet 223. The cross-section of the slide groove 2231 is arranged in a stepped shape. One end of the push rod 224 is inserted into the slide groove 2231, and the push rod 224 and the slide groove 2231 are slidably connected.

[0037] When the elastic metal sheet 223 is deformed, the transmission is transmitted through the slide groove 2231 and the push rod 224, so that the push rod 224 moves along the axis, and the induction coil 225 moves to cut the magnetic flux lines and generate an induced current, that is, the greater the curvature of the tank body 5, the greater the induced current. During the deformation of the elastic metal sheet 223, the push rod 224 slides in the slide groove 2231 to prevent movement interference. The push rod 224 is limited by the stepped cross-section setting of the slide groove 2231, that is, when the elastic metal sheet 223 is reset, the push rod 224 is driven to move in the direction close to the elastic metal sheet 223, thereby automatically resetting, facilitating continuity detection and improving detection efficiency.

[0038] As an optimization, the induction coil 225 and the push rod 224 form an induction circuit, and the pressure regulating cylinder 222 is electrically connected to the induction circuit. According to the magnitude of the current in the induction circuit, the magnitude of the current input to the pressure regulating cylinder 222 is automatically adjusted, that is, when the curvature is greater, the greater the current in the induction circuit, the greater the output displacement of the pressure regulating cylinder 222, thereby ensuring that the pressure of the pressure sensing sheet 211 on the surface of the tank body 5 tends to be consistent, thereby improving the detection accuracy.

[0039] As an optimization, the displacement device 1 further includes a driving motor 13, the driving motor 13 is firmly connected to the support platform 11, the output end of the driving motor 13 is transmission-connected to the clamp 12, and the driving motor 13 is electrically connected to the induction circuit. Two driving cavities are provided on the support platform 11, and the driving motor 13 is placed in the driving cavity. Through transmission, the two clamps 12 are driven to rotate, thereby clamping the tank body 5 and driving the tank body 5 to rotate.

[0040] As an optimization, the automated welding equipment further includes a track 4, which is located on one side of the support platform 11. The track 4 is used to move the welding robot 3, and the output displacement direction of the track 4 is parallel to the axis direction of the tank body 5. By setting the track 4, the welding robot 3 is driven to move linearly, so as to facilitate the longitudinal seam welding of the tank body 5.

[0041] The working principle of the present invention is as follows: after welding is completed, the hammer motor 212 fixed on the mounting base 23 outputs torque to drive the rotating shaft 214 to rotate. During the rotation of the rotating shaft 214, the hammer 213 is driven to hammer to a position close to the weld, and the hammering points of the pressure-sensitive sheet 211 and the hammer 213 are located on both sides of the weld. The pressure-sensitive sheet 211 is pressed against the surface of the tank body 5. When the hammer 213 hammers onto the tank body 5, vibration is generated. When the welding quality is good, that is, the overall rigidity of both sides of the weld is large, the vibration attenuation transmitted to the bottom of the pressure-sensitive sheet 211 is small, and the pressure-sensitive sheet 211 is pressed against the surface of the tank body by a certain pressure. The vibration will drive the surface of the tank body 5 to produce The micro displacement is generated, so that the pressure of the tank body 5 on the pressure-sensitive plate 211 changes. The smaller the vibration attenuation is, the greater the pressure transmitted to the pressure-sensitive plate 211 is. Under the action of mechanical stress, the relative displacement of the internal positive and negative charge centers is polarized, resulting in piezoelectric effect, which draws out the current on the pressure-sensitive plate 211 as the detection current. The greater the pressure, the greater the current generated. When a cold weld occurs or the welding is incomplete, the vibration attenuation is severe due to the poor connection quality at this time, so that the amplitude of the tank body 5 transmitted to the pressure-sensitive plate 211 is low, the pressure on the pressure-sensitive plate 211 is reduced, and the detection current is reduced, thereby performing real-time detection of the welding quality.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automated welding equipment for special vehicle tank production, characterized in that: The automated welding equipment comprises a displacement device (1), an auxiliary device (2) and a welding robot (3); a welding robot (3) is provided on one side of the displacement device (1); an output end of the welding robot (3) is transmission-connected to the auxiliary device (2); a welding head (6) is provided at the output end of the welding robot (3); and the displacement device (1) is used for clamping a tank body (5).

2. The automatic welding equipment for producing special vehicle tanks according to claim 1 is characterized in that: The displacement device (1) comprises a support platform (11) and a clamp (12), wherein the clamp (12) is provided in two groups, the outer sides of the two groups of clamps (12) are rotatably connected to the support platform (11), and the inner sides of the two groups of clamps (12) are respectively in contact with the tank body (5); The auxiliary device (2) comprises a detection component (21) and a mounting seat (23); the mounting seat (23) is tightly connected to the output end of the welding robot (3); a through hole is provided on the mounting seat (23); the welding head (6) passes through the through hole on the mounting seat (23); the detection component (21) and the mounting seat (23) are tightly connected; the detection component (21) comprises a pressure sensing sheet (211), a hammer motor (212), a hammer (213) and a rotating shaft ( 214), the hammer motor (212) and the mounting seat (23) are tightly connected, the output end of the hammer motor (212) is connected to the hammer (213) through the rotating shaft (214), the hammer (213) has a hammering point facing the tank body (5), the pressure sensing sheet (211) is in contact with the surface of the tank body (5), the hammering points of the pressure sensing sheet (211) and the hammer (213) are respectively located on both sides of the weld of the tank body (5), and the pressure sensing sheet (211) is made of piezoelectric ceramic material.

3. The automatic welding equipment for producing special vehicle tanks according to claim 2 is characterized in that: The detection assembly (21) further comprises a slide plate (215), a transmission groove (2131) being provided on the hammer (213), and retaining grooves (2132) being provided on both sides of the hammer (213), two ends of the slide plate (215) passing through the transmission groove (2131) and the retaining grooves (2132) for sliding connection, a clamping spring (216) being provided in the retaining groove (2132), a side of the clamping spring (216) away from the retaining groove (2132) being in contact with the slide plate (215), and one side of the rotating shaft (214) being tightly connected to the slide plate (215).

4. The automatic welding equipment for producing special vehicle tanks according to claim 3 is characterized in that: The outer side of the hammer (213) is arranged in an arc shape.

5. The automatic welding equipment for producing special vehicle tanks according to claim 4 is characterized in that: The auxiliary device (2) further comprises an adjustment component (22), the adjustment component (22) comprising a transmission plate (221), a pressure regulating cylinder (222) and an elastic metal sheet (223), the pressure regulating cylinder (222) and the mounting seat (23) are tightly connected, the output end of the pressure regulating cylinder (222) and the pressure sensing sheet (211) are tightly connected, a transmission plate (221) is provided on one side of the pressure regulating cylinder (222), the elastic metal sheet (223) is arranged in an arc shape, one end of the elastic metal sheet (223) is tightly connected to the transmission plate (221), and the other end abuts against the outer circle of the tank body (5).

6. The automatic welding equipment for producing special vehicle tanks according to claim 5 is characterized in that: The adjustment assembly (22) further comprises a push rod (224) and an induction coil (225); an induction slot (2211) is provided on the transmission plate (221); the induction coil (225) is placed in the induction slot (2211); one end of the push rod (224) is transmission-connected to the elastic metal sheet (223); the other end is inserted into the induction slot (2211); the axis of the push rod (224) and the axis of the induction coil (225) are colinear; the push rod (224) is made of a magnetic material; the push rod (224) and the notch of the induction slot (2211) are slidably connected; a slide slot (2231) is provided on the elastic metal sheet (223); the slide slot (2231) has a stepped cross-section; one end of the push rod (224) is inserted into the slide slot (2231); the push rod (224) and the slide slot (2231) are slidably connected.

7. The automatic welding equipment for producing special vehicle tanks according to claim 6 is characterized in that: The induction coil (225) and the push rod (224) form an induction circuit, and the pressure regulating cylinder (222) is electrically connected to the induction circuit.

8. The automatic welding equipment for producing special vehicle tanks according to claim 7 is characterized in that: The displacement device (1) further comprises a drive motor (13), wherein the drive motor (13) is fixedly connected to the support platform (11), an output end of the drive motor (13) is transmission-connected to the clamp (12), and the drive motor (13) is electrically connected to the induction circuit.

9. The automatic welding equipment for producing special vehicle tanks according to claim 8 is characterized in that: The automated welding equipment further comprises a track (4), wherein the track (4) is located on one side of the support platform (11), the track (4) is used to move the welding robot (3), and the output displacement direction of the track (4) is parallel to the axial direction of the tank body (5).

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