Welding equipment for air compressor production

Abstract

The invention relates to the field of air compressor production, in particular to welding equipment for air compressor production. Comprising a first electric guide rail, a housing, a motor and the like. The first electric guide rails are slidably connected with two housings which are in bilateral symmetry. And each housing is fixedly connected with a motor. When the air storage tank is welded, the inner supporting assembly is unfolded in the air storage tank, the extrusion roller makes contact with the inner wall of the edge of the welding area of the air storage tank, then the motor drives the inner supporting assembly and the extrusion roller to rotate rapidly, and meanwhile the motor and the transmission assembly drive the air storage tank to rotate slowly; the problems that the butt joint faces of the gas storage tank body and the end socket are not flat, so that the contact faces of the gas storage tank body and the end socket are not tightly attached or staggered, welding defects such as pseudo soldering, incomplete penetration and weld beading are prone to occurring in the follow-up welding process, the structural strength of a welding seam is seriously weakened, and the service life of the welding seam is prolonged are solved. And the pressure-bearing requirement of the gas storage tank cannot be met.

Description

Technical Field

[0001] This invention relates to the field of air compressor manufacturing, and more particularly to a welding equipment for air compressor manufacturing. Background Technology

[0002] In the mass production of air compressor storage tanks, the industry generally uses welding equipment in conjunction with clamps to achieve the welding operation of the tank body and the end cap. The specific process is as follows: the prefabricated tank body and end cap are transported to the welding station by the conveying mechanism, and then the clamps are used to position and clamp the tank body and end cap to ensure that the contact surfaces to be welded are accurately aligned. Finally, the welding assembly is started to complete the welding operation of the circumferential weld.

[0003] However, the tank body and the end cap are prone to collision and squeezing during transportation, which can easily cause local depression deformation on the contact surface to be welded. This depression deformation will directly damage the flatness of the mating surface between the tank body and the end cap, resulting in poor contact or misalignment of the two contact surfaces. Subsequent welding is prone to defects such as incomplete welding, incomplete penetration, and weld beads, which seriously weaken the structural strength of the weld and cannot meet the pressure requirements of the gas storage tank. Furthermore, after the gas storage tank is welded, it needs to undergo airtightness testing. In the existing technology, manual testing is usually used, which consumes a lot of time and labor costs and prolongs the overall production cycle of the gas storage tank. Summary of the Invention

[0004] In order to overcome the shortcomings of the current air compressor storage tank production process, where the tank body and end cap are easily squeezed and collided during transportation, resulting in the indentation and deformation of the contact surface between the tank body and the end cap, making it difficult to guarantee the welding quality, and requiring additional sealing tests after welding, this invention provides a welding equipment for air compressor production.

[0005] The technical solution is as follows: A welding equipment for air compressor production includes a first electric guide rail; two symmetrically arranged covers are slidably connected to the first electric guide rail; a motor is fixedly connected to each cover; clamps are rotatably connected to the opposing sides of the two covers; each clamp is connected to the output end of a corresponding motor; a second electric guide rail is installed on the rear side of the first electric guide rail; two laser welders are slidably connected to the second electric guide rail; a rotating ring is rotatably connected inside the cover; the two clamps are respectively fixedly connected to the corresponding rotating ring; a transmission component for driving the rotating ring to rotate is connected to the output end of each motor; an air inflation pipe is connected to the output end of each motor; each motor... Each output end is connected to an inflation assembly for inflating the inflation tube; both rotating rings are rotatably connected to connecting pipes on opposite sides; each inflation tube passes through and is fixedly connected to its corresponding connecting pipe; each connecting pipe has an air outlet; each connecting pipe has a pressure sensor fixedly connected to it; each pressure sensor is connected to its corresponding air outlet; the connecting pipe is connected to an internal support assembly for internal support correction of the gas tank's inner wall; each internal support assembly is connected to a compression roller; each internal support assembly is connected to two elastic membranes; a second cavity is formed between the two elastic membranes; the second cavity is connected to the inflation tube; an auxiliary assembly for auxiliary clamping of the gas tank is connected to the first electric guide rail.

[0006] Preferably, the transmission assembly includes an internal gear ring fixedly connected within a rotating ring; each motor output end is fixedly connected to a connector, and a sun gear is fixedly connected to the outside of the connector; a number of planet gears are rotatably connected inside the housing; each planet gear meshes with the sun gear and the internal gear ring.

[0007] Preferably, the inflation assembly includes a sealing ring rotatably connected to the connector; each sealing ring is fixedly connected to a corresponding housing; each inflation tube is fixedly connected to a corresponding connector; a first cavity is formed between each sealing ring and the corresponding connector; an air inlet tube is fixedly connected to each sealing ring; one end of the air inlet tube communicates with the first cavity; the other end passes through the corresponding housing and communicates with the outside; each connector has a connecting groove that connects the first cavity to the corresponding inflation tube; the first cavity and the corresponding inflation tube are connected through the connecting groove.

[0008] Preferably, the inner support assembly includes a first electric push rod fixedly connected inside the inflation tube; a fixing rod fixedly connected inside each connecting tube; an air outlet formed between the outer side of each fixing rod and the inner wall of the corresponding connecting tube; a fixing block fixedly connected to the output end of each first electric push rod; several linkage mechanisms rotatably connected between each fixing block and the corresponding fixing rod, the linkage mechanism consisting of two connecting plates, the opposite sides of the two connecting plates being hinged to the corresponding fixing rod and fixing block respectively; the opposite sides of the two connecting plates being hinged to the corresponding extrusion rollers; one elastic membrane fixedly connected between all the extrusion rollers and the fixing blocks, and the other elastic membrane fixedly connected between all the extrusion rollers and the inflation tube.

[0009] Preferably, the auxiliary components include several fixed plates slidably connected to the first electric guide rail; a third electric guide rail is fixedly connected to each fixed plate; a connecting frame is slidably connected to each third electric guide rail; two clamping rings are slidably connected to each connecting frame, and each clamping ring has a sliding groove; two sliders are fixedly connected to each connecting frame, and each slider slides in a corresponding sliding groove; two second electric push rods are fixedly connected to each connecting frame; each clamping ring has a round hole; and each slider has a fixing hole.

[0010] Preferably, the extrusion roller has a groove in the middle.

[0011] Preferably, a sealing ring is also included, which is fixed inside the connector.

[0012] Preferably, the contact surface between the clamp and the gas tank is set to a rough surface.

[0013] Preferably, both the extrusion roller and the clamping ring are made of glass fiber.

[0014] Preferably, it also includes a laser cutter robot and a fourth motorized guide rail.

[0015] The beneficial effects are as follows: When welding the gas storage tank, the inner support assembly is unfolded inside the gas storage tank, so that the extrusion roller contacts the inner wall of the edge of the welding area of ​​the gas storage tank. Then, the inner support assembly and the extrusion roller are driven by a motor to rotate rapidly, while the gas storage tank is driven to rotate slowly by a motor and transmission assembly. This flattens and restores the concave and deformed areas of the contact surface between the gas storage tank body and the end cap, solving the problem of uneven mating surfaces between the gas storage tank body and the end cap, which causes the contact surfaces to not fit tightly or to be misaligned. This leads to welding defects such as incomplete welding, incomplete penetration, and weld beads during subsequent welding, which seriously weakens the structural strength of the weld and fails to meet the pressure requirements of the gas storage tank.

[0016] During welding, the air inlet pipe generates suction to draw in fumes entering the gas tank. After the inner support assembly unfolds, the elastic membrane stretches and forms a second cavity inside the welding area of ​​the gas tank. This second cavity isolates the fumes and welding slag entering the gas tank, preventing them from splashing inside. Simultaneously, the air inlet pipe is directly connected to the welding area of ​​the gas tank, allowing the suction force to act directly on the welding area, improving suction efficiency and product quality. After welding, the gas tank is pressurized by the air inlet pipe. Since the gas tank's interface, outlet, and pressure sensor are connected, the pressure sensor can monitor the gas pressure in real time. This allows for direct airtightness testing of the gas tank after welding, eliminating the need for subsequent manual inspection, thus reducing time and labor costs and improving production efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the welding equipment for air compressor production according to the present invention; Figure 2 This is a three-dimensional structural diagram of the gas storage tank of the present invention; Figure 3 This is a three-dimensional structural diagram of the combined housing, clamp, rotating ring, connecting frame, and clamping ring of the present invention. Figure 4 This is a three-dimensional structural diagram of the combined housing, clamp, air tank, rotating ring, connecting pipe, fixing rod, and linkage mechanism of the present invention. Figure 5 This is a three-dimensional structural diagram of the connector, sealing ring, air intake pipe and transmission assembly of the present invention. Figure 6 This is a cross-sectional view of the connector and sealing ring assembly of the present invention; Figure 7 This is a three-dimensional structural diagram of the assembly of the connecting pipe, fixing rod, and pressure sensor of the present invention; Figure 8 This is a three-dimensional structural diagram of the first electric push rod, fixed rod, fixed block, linkage mechanism and extrusion roller assembly of the present invention; Figure 9 This is a diagram showing the unfolded state of the linkage mechanism of the present invention; Figure 10 This is a three-dimensional structural diagram of the auxiliary component of the present invention; Figure 11 This is a cross-sectional view of the clamping ring of the present invention.

[0018] Explanation of reference numerals in the attached drawings: 1-First electric guide rail, 2-Cover, 3-Motor, 4-Clamping device, 5-Second electric guide rail, 6-Laser welder, 7-Laser cutter robot arm, 8-Air tank, 8001-End cap, 8002-Mating interface, 9-Fourth electric guide rail, 101-Rotating ring, 102-Internal gear ring, 103-Planetary gear, 104-Connector, 10401-First cavity, 10402-Connecting groove, 10403-Inflation pipe, 105-Sealing ring, 106-Inlet pipe, 107-Sun gear, 108-The fourth electric guide rail. An electric push rod, 109-elastic membrane, 10901-second cavity, 201-connecting pipe, 20101-air outlet, 202-fixed rod, 203-fixed block, 204-linkage mechanism, 205-squeezing roller, 20501-groove, 206-sealing ring, 207-pressure sensor, 301-fixed plate, 302-third electric guide rail, 303-connecting frame, 304-clamping ring, 30401-slide groove, 30402-round hole, 305-slider, 30501-fixing hole, 306-second electric push rod. Detailed Implementation

[0019] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0020] Example 1: A welding equipment for air compressor production, such as... Figures 1-11 As shown, it includes a first electric guide rail 1, a housing 2, a motor 3, a clamp 4, a second electric guide rail 5, and a laser welder 6; two symmetrical housings 2 are slidably connected to the first electric guide rail 1; a motor 3 is fixedly connected to each housing 2; clamps 4 are rotatably connected to the opposing sides of the two housings 2; each clamp 4 is connected to the output end of the corresponding motor 3; the second electric guide rail 5 is installed on the rear side of the first electric guide rail 1; two laser welders 6 are slidably connected to the second electric guide rail 5. It also includes a rotating ring 101, an inflation tube 10403, an elastic membrane 109, a compression roller 205, a connecting tube 201, a pressure sensor 207, an inflation assembly, a transmission assembly, an inner support assembly, and auxiliary components; a rotating ring 101 is rotatably connected inside each housing 2; two clamps 4 are respectively fixed to the corresponding rotating ring 101; a transmission assembly is connected to the output end of each motor 3; an inflation tube 10403 is connected to the output end of each motor 3; an inflation assembly is connected to the output end of each motor 3; a connecting tube 201 is rotatably connected to the opposing sides of the two rotating rings 101; each inflation tube 10403 passes through the corresponding connecting tube 201 and is fixed to it; an outlet is provided inside each connecting tube 201. Air inlet 20101; a pressure sensor 207 is fixedly connected to each connecting pipe 201; each pressure sensor 207 is connected to the corresponding air outlet 20101; an inner support assembly is connected to the connecting pipe 201; a compression roller 205 is connected to each inner support assembly; two elastic membranes 109 are connected to each inner support assembly. Initially, the membrane surface of the elastic membrane 109 is folded around the central axis to form a hollow prism with n-order rotational symmetry. Its cross-section is a regular concave polygon composed of n vertices and n concave edges; a second cavity 10901 is formed between the two elastic membranes 109; the second cavity 10901 is connected to the air inlet pipe 10403; an auxiliary assembly is connected to the first electric guide rail 1.

[0021] In this embodiment, the worker first spot welds two end caps 8001 to the left and right ends of the gas storage tank 8, thus fixing the end caps 8001 to the gas storage tank 8. Then, using an external loading robot, the gas storage tank 8 is placed on the left-side gripper 4, so that the left-side gripper 4 contacts the end cap 8001 at the left end of the gas storage tank 8. Then, the external worktable controls the first electric guide rail 1, driving the right-side cover 2 and gripper 4 to move to the left, completing the clamping of the gas storage tank 8. After completion, the external loading robot releases the gas storage tank 8. Then, the second electric guide rail 5 is controlled by the external worktable to move the laser welder 6 to the welding position of the gas storage tank 8 and weld the gas storage tank 8. During the welding process, the motor 3 is started, and the rotating ring 101 and the clamp 4 are driven to rotate slowly through the transmission component, which in turn drives the gas storage tank 8 to rotate slowly. Together with the laser welder 6, the tank body of the gas storage tank 8 is welded and fixed to the end cap 8001, thus completing the welding operation of the gas storage tank 8.

[0022] Because the gas tank 8 and the end cap 8001 are prone to collision and compression during transportation, the contact surfaces to be welded are easily subject to localized indentation deformation. This indentation deformation directly damages the flatness of the mating surfaces of the gas tank 8 and the end cap 8001, resulting in poor contact or misalignment. Subsequent welding is prone to defects such as incomplete welds, incomplete penetration, and weld beads, severely weakening the structural strength of the weld and failing to meet the pressure requirements of the gas tank 8. Therefore, when the external loading robot places the gas tank 8 on the left-side gripper 4, the mating interface 80 on the left end cap 8001 needs to be aligned. 02. Align the left-side connecting pipe 201, then move the gas tank 8 to the left, so that the left-side inner support assembly is inserted into the gas tank 8 through the left-side connecting interface 8002. Then, the right-side cover 2 and clamp 4 are moved to the left by the first electric guide rail 1 to clamp the gas tank 8. The right-side inner support assembly is then inserted into the gas tank 8 through the right-side connecting interface 8002. Then, the auxiliary assembly clamps the outer edge of the welding area of ​​the gas tank 8. After the gas tank 8 is clamped, the inner support assembly is unfolded, and then the inner support assembly pushes the extrusion roller 205 towards the inner edge of the welding area of ​​the gas tank 8. The extrusion process brings the extrusion roller 205 into contact with the inner edge of the welding area of ​​the gas tank 8. Then, the motor 3 is started, and through the motor 3 and transmission assembly, the rotating ring 101, the clamp 4, and the gas tank 8 rotate slowly. At this time, the motor 3 also drives the transmission assembly, the inflation assembly, the inflation pipe 10403, the connecting pipe 201, the inner support assembly, and the extrusion roller 205 to rotate. The transmission assembly ensures that the rotation speed of the extrusion roller 205 is greater than the rotation speed of the clamp 4 and the gas tank 8. Thus, during the welding process, the continuously rotating extrusion roller 205 presses against the inner edge of the welding area of ​​the gas tank 8, i.e., The concave deformation area of ​​the contact surface between the gas tank 8 and the end cap 8001 is squeezed. At this time, the outer wall of the edge of the welding area of ​​the gas tank 8 is clamped and limited by the auxiliary components. Therefore, during the continuous rotation and squeezing of the extrusion roller 205, the concave deformation area of ​​the contact surface between the gas tank 8 and the end cap 8001 will be flattened and restored. This solves the problem that the mating surface between the gas tank 8 and the end cap 8001 is uneven, which causes the two to not fit tightly or to be misaligned. This makes it easy for welding defects such as false welding, incomplete penetration, and weld beads to occur during subsequent welding, which seriously weakens the structural strength of the weld and fails to meet the pressure requirements of the gas tank 8.

[0023] Furthermore, such as Figures 3-6As shown: First, connect the inflation assembly to the external air pump, then start the external air pump to send gas through the inflation assembly into the inflation pipe 10403, and finally into the air storage tank 8. Then, perform an inflation and pressurization test on the air storage tank 8. After the air storage tank 8 is inflated, the air pressure inside the air storage tank 8 increases. At this time, the interface 8002 is connected to the air outlet 20101 and the pressure sensor 207. Therefore, the pressure sensor 207 can detect the air pressure inside the air storage tank 8 in real time. When the pressure sensor 207 detects that the internal air pressure of the air storage tank 8 continues to drop after pressurization, it indicates that the air storage tank 8 has a leak, and the product can be judged as unqualified. Therefore, this method allows for direct airtightness testing of the air storage tank 8 after welding, eliminating the need for subsequent manual testing, thus reducing time and labor costs, improving production efficiency, and preventing the generation of large amounts of welding slag and fumes during welding. These slag and fumes will enter the interior of the air storage tank 8. If the air storage tank 8 is used to store compressed air, inert gas... Gases (such as nitrogen) and process gases, with residual welding slag and fumes inside, can directly contaminate the medium and seriously affect product quality. Therefore, during the welding process, an external air pump can be used for suction, which in turn generates suction force in the inflation component and the inflation pipe 10403. This suction force is used to draw in the fumes entering the gas storage tank 8, improving the production quality of the gas storage tank 8. After the inner support component is deployed, the elastic membrane 109 is stretched and unfolded, forming a second cavity 10901 inside the welding area of ​​the gas storage tank 8. This cavity isolates the fumes and welding slag entering the gas storage tank 8 during the welding process, preventing welding slag from splashing inside the gas storage tank 8. This overcomes the problem of difficulty in effectively drawing in splashed welding slag due to the small diameter of the inflation pipe 10403. Furthermore, through the second cavity 10901, the inflation pipe 10403 is directly connected to the welding area of ​​the gas storage tank 8, allowing the suction force of the inflation pipe 10403 to act directly on the welding area of ​​the gas storage tank 8, improving the suction effect.

[0024] In some optional implementations of this embodiment, such as Figure 4 and Figure 5 As shown, the transmission assembly includes an internal gear ring 102, planetary gears 103, a connector 104, and a sun gear 107; the internal gear ring 102 is fixedly connected inside the rotating ring 101; the output end of each motor 3 is fixedly connected to a connector 104, and the sun gear 107 is fixedly connected to the outside of the connector 104; three planetary gears 103 arranged in a ring array are rotatably connected inside the housing 2; each planetary gear 103 meshes with the sun gear 107 and the internal gear ring 102.

[0025] In this embodiment, the specific working principle of the transmission component is as follows: During the welding process, taking the motor 3 on the right as an example, looking from right to left, starting the motor 3 drives the corresponding connector 104 and sun gear 107 to rotate clockwise, thereby driving the air inlet pipe 10403, connecting pipe 201, extrusion roller 205, and unfolded inner support assembly to rotate rapidly. At the same time, the sun gear 107 drives the planet gear 103 to rotate counterclockwise, and then the planet gear 103 drives the internal gear ring 102, rotating ring 101, clamp 4, and air tank 8 to rotate counterclockwise. At this time, the reference... Based on the principle of planetary reducers, the meshing motion of planetary gears 103 around sun gear 107 converts the high-speed, low-torque input of motor 3 into low-speed, high-torque output, ensuring the stability and accuracy of transmission and guaranteeing the rotational stability of gas tank 8 during the welding process. While driving gas tank 8 to rotate slowly and uniformly, the rapid rotation of the air filling pipe 10403, connecting pipe 201, extrusion roller 205, and unfolded inner support assembly extrudes and restores the edge of the welding area of ​​gas tank 8, i.e., the concave deformation area of ​​the contact surface between the gas tank body and the end cap 8001.

[0026] In some optional implementations of this embodiment, such as Figures 3-6 As shown, the inflation assembly includes a sealing ring 105 and an air inlet pipe 106; a sealing ring 105 is rotatably connected to the outside of each connector 104; each sealing ring 105 is fixedly connected to the corresponding housing 2; each inflation pipe 10403 is fixedly connected to the corresponding connector 104; a first cavity 10401 is formed between each sealing ring 105 and the corresponding connector 104; an air inlet pipe 106 is fixedly connected to each sealing ring 105; one end of the air inlet pipe 106 communicates with the first cavity 10401; the other end passes through the corresponding housing 2 and communicates with the outside; a connecting groove 10402 is provided in each connector 104; the first cavity 10401 is connected to the corresponding inflation pipe 10403 through the connecting groove 10402.

[0027] In this embodiment, the specific working principle of the inflation assembly is as follows: First, the air inlet pipe 106 is connected to the external air pump. After the gas storage tank 8 is welded, gas is delivered to the air inlet pipe 106 through the external air pump. Then, the gas in the air inlet pipe 106 enters the first cavity 10401, and then enters the inflation pipe 10403 through the connecting groove 10402. Finally, it is sent into the gas storage tank 8 through the inflation pipe 10403, thereby inflating and pressurizing the gas storage tank 8. During the welding process, the air inlet pipe 106 can be sucked by the external air pump, thereby causing the inflation pipe 10403 to generate suction force to suck the smoke entering the gas storage tank 8.

[0028] In some optional implementations of this embodiment, such as Figure 8 and Figure 9As shown, the internal support assembly includes a first electric push rod 108, a fixed rod 202, a fixed block 203, and a linkage mechanism 204; a first electric push rod 108 is fixedly connected inside each inflation tube 10403; a fixed rod 202 is fixedly connected inside each connecting tube 201; an air outlet 20101 is formed between the outer side of each fixed rod 202 and the inner wall of the corresponding connecting tube 201; a fixed block 203 is fixedly connected to the output end of each first electric push rod 108; each fixed block 203 is connected to the corresponding fixed rod 204. Six linkage mechanisms 204 arranged in a ring are rotatably connected between the fixed rods 202. Each linkage mechanism 204 consists of two connecting plates. The opposite sides of the two connecting plates are hinged to the corresponding fixed rods 202 and fixed blocks 203, respectively. The opposite sides of the two connecting plates are hinged to the corresponding extrusion rollers 205. One elastic membrane 109 is fixed between all the extrusion rollers 205 and the fixed blocks 203, and the other elastic membrane 109 is fixed between all the extrusion rollers 205 and the inflation tube 10403.

[0029] In this embodiment, the specific working principle of the inner support assembly is as follows: In the initial state, the output end of the first electric push rod 108 is in the extended state, and the linkage mechanism 204 is in the retracted state. During the process of clamping the gas tank 8 through the two clamps 4, the fixing block 203 and the linkage mechanism 204 can be smoothly inserted into the gas tank 8. After the gas tank 8 is clamped by the two clamps 4, taking the first electric push rod 108 on the right as an example, the output end of the first electric push rod 108 is controlled to retract to the right, thereby driving the fixing block 203 to move to the right. At this time, the fixing block 203 will squeeze the linkage mechanism 204. After being pressed, the two connecting plates of the linkage mechanism 204 will rotate adaptively, that is, rotate outward, thereby squeezing the extrusion roller 205 outward, so that the extrusion roller 205 contacts the inner wall of the edge of the welding area of ​​the gas tank 8. During this process, the extrusion roller 205 pulls one end of the elastic membrane 109 to unfold, and then the elastic membrane 109 will unfold outward like a long-handled umbrella, and then appear as Figure 9 The state shown.

[0030] In some optional implementations of this embodiment, such as Figure 10 and Figure 11As shown, the auxiliary components include a fixed plate 301, a third electric guide rail 302, a connecting frame 303, a clamping ring 304, a slider 305, and a second electric push rod 306; four symmetrically arranged fixed plates 301 are slidably connected to the first electric guide rail 1; a third electric guide rail 302 is fixedly connected to each fixed plate 301; a connecting frame 303 is slidably connected to each third electric guide rail 302; two clamping rings 304 are slidably connected to each connecting frame 303, and each clamping ring 304 has a groove 30401; each connecting... Each connecting frame 303 has two sliders 305 fixedly attached, and each slider 305 slides in a corresponding groove 30401. Each connecting frame 303 has two second electric push rods 306 fixedly attached. Each clamping ring 304 has a round hole 30402. Each slider 305 has a fixing hole 30501. In the initial state, the output end of the second electric push rod 306 is extended and passes through the corresponding round hole 30402 and is inserted into the corresponding fixing hole 30501, thereby fixing the clamping ring 304 and the slider 305.

[0031] In this embodiment, the specific working principle of the auxiliary component is as follows: In the initial state, the output end of the second electric push rod 306 is extended and passes through the corresponding round hole 30402 and is inserted into the corresponding fixing hole 30501, thereby fixing the clamping ring 304 and the slider 305. Therefore, after the gas tank 8 is clamped by the two clamps 4, the first electric guide rail 1 is controlled to drive the corresponding fixing plate 301 to move left and right, moving the two clamping rings 304 on the connecting frame 303 to the left and right sides of the welding area of ​​the gas tank 8. Then, the third electric guide rail 302 drives the two corresponding connecting frames 303 to move towards the opposite side, so that the clamping rings 304... 04 is attached to the left and right sides of the welding area of ​​the gas storage tank 8 to assist in clamping the gas storage tank 8. At the same time, it squeezes and limits the edge of the welding area of ​​the gas storage tank 8, that is, the outer side of the concave deformation area of ​​the contact surface between the gas storage tank 8 body and the end cap 8001. Then, when the motor 3 drives the unfolded inner support assembly and the extrusion roller 205 to squeeze the edge of the welding area of ​​the gas storage tank 8, that is, the concave deformation area of ​​the contact surface between the gas storage tank 8 body and the end cap 8001, the clamping ring 304 can limit the outer wall of the edge of the welding area of ​​the gas storage tank 8, so that the extrusion roller 205 can flatten and restore the concave deformation area of ​​the contact surface between the gas storage tank 8 body and the end cap 8001.

[0032] After the clamping ring 304 limits the outer edge of the welding area of ​​the gas tank 8, the output end of the second electric push rod 306 is retracted and reset, releasing the second electric push rod 306 from fixing the clamping ring 304 and the slider 305. Then, when the transmission component drives the gas tank 8 to rotate, the gas tank 8 will drive the clamping ring 304 to rotate. During this process, the slider 305 slides relative to the slide groove 30401, thereby avoiding the influence of the transmission component driving the gas tank 8 to rotate after the clamping ring 304 limits the outer edge of the welding area of ​​the gas tank 8.

[0033] In a further preferred embodiment of the present invention, such as Figure 8 and Figure 9 As shown, a groove 20501 is provided in the middle of the extrusion roller 205.

[0034] In this embodiment, a groove 20501 is provided in the middle of the extrusion roller 205 to prevent the extrusion roller 205 from contacting the welding surface of the gas storage tank 8, which would cause the extrusion roller 205 to be welded to the welding surface of the gas storage tank 8 during welding, thus affecting the normal operation of the equipment.

[0035] In a further preferred embodiment of the present invention, such as Figure 7 As shown, it also includes a sealing ring 206; the sealing ring 206 is fixedly connected inside the connecting pipe 201.

[0036] In this embodiment, after the interface 8002 is inserted into the connector 201, the interface 8002 will press against the sealing ring 206, thereby improving the sealing effect of the contact area between the interface 8002 and the connector 201 through the sealing ring 206, preventing gas from leaking from the contact area between the interface 8002 and the connector 201 when the gas storage tank 8 is being tested for leaks, thus affecting the leak detection.

[0037] In a further preferred embodiment of the present invention, such as Figures 1-3 As shown, the contact surface between the clamp 4 and the gas tank 8 is set as a rough surface.

[0038] In this embodiment, the friction between the clamp 4 and the gas tank 8 is increased, which improves the clamping effect of the clamp 4 on the gas tank 8 and avoids relative sliding between the clamp 4 and the gas tank 8 when the motor 3 drives the clamp 4 and the gas tank 8 to rotate, which would affect the welding operation.

[0039] In a further preferred embodiment of the present invention, such as Figure 3 and Figures 8-10 As shown, both the extrusion roller 205 and the clamping ring 304 are made of glass fiber.

[0040] In this embodiment, the extrusion roller 205 and the clamping ring 304 have good insulation and high temperature resistance, which can effectively block the conduction of welding current and avoid equipment short circuit or electric shock caused by current leakage. At the same time, it can prevent the extrusion roller 205 and the clamping ring 304 from softening and deforming when they approach the high temperature welding point, which would affect the extrusion roller 205's extrusion and reset effect on the inner edge of the welding area of ​​the gas storage tank 8 and the clamping and limiting effect of the clamping ring 304 on the outer edge of the welding area of ​​the gas storage tank 8.

[0041] Example 2: Based on Example 1, such as Figure 1 As shown, it also includes a laser cutter robot arm 7 and a fourth electric guide rail 9; the fourth electric guide rail 9 is mounted on the front side of the first electric guide rail 1; the laser cutter robot arm 7 is slidably connected to the fourth electric guide rail 9.

[0042] In this embodiment, after the air tank 8 is welded, the fourth electric guide rail 9 and the laser cutter robot 7 are started by the external control console. The fourth electric guide rail 9 drives the laser cutter robot 7 to move left and right to perform laser cutting on the air tank 8, opening the mounting slots on the surface of the air tank 8, reducing the production process, improving production efficiency, and facilitating the subsequent assembly of the air tank 8 with other parts of the air compressor.

[0043] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A welding device for air compressor production, comprising a first electric guide rail (1); two symmetrically arranged covers (2) are slidably connected to the first electric guide rail (1); a motor (3) is fixedly connected to each cover (2); a clamp (4) is rotatably connected to the opposing sides of the two covers (2); each clamp (4) is connected to the output end of the corresponding motor (3); a second electric guide rail (5) is installed on the rear side of the first electric guide rail (1); two laser welders (6) are slidably connected to the second electric guide rail (5); characterized in that, The utility model also comprises a rotating ring (101) rotatably connected in the cover (2); two clamps (4) are respectively fixedly connected on the corresponding rotating ring (101); the output end of each motor (3) is connected with a transmission assembly for driving the rotating ring (101) to rotate; the output end of each motor (3) is connected with an inflation pipe (10403); the output end of each motor (3) is connected with an inflation assembly for inflating the inflation pipe (10403); the opposite sides of the two rotating rings (101) are rotatably connected with butt pipes (201); each inflation pipe (10403) penetrates through the corresponding butt pipe (201) and is fixedly connected therewith; each butt pipe (201) is provided with a gas outlet (20101) therein; a pressure sensor (207) is fixedly connected on each butt pipe (201); each pressure sensor (207) is in communication with the corresponding gas outlet (20101); the butt pipe (201) is connected with an inner support assembly for supporting the inner wall of the gas storage tank (8); an extrusion roller (205) is connected on each inner support assembly; two elastic membranes (109) are connected on each inner support assembly; a second cavity (10901) is formed between the two elastic membranes (109); the second cavity (10901) is in communication with the inflation pipe (10403); an auxiliary assembly for assisting in clamping the gas storage tank (8) is connected on the first electric guide rail (1).

2. The welding apparatus for air compressor production as claimed in claim 1, wherein, The transmission assembly comprises an inner gear ring (102) fixedly connected in the rotating ring (101); the output end of each motor (3) is fixedly connected with a connecting head (104), and a sun gear (107) is fixedly connected to the outer side of the connecting head (104); a plurality of planetary gears (103) are rotatably connected in the cover (2); each planetary gear (103) is in meshing connection with the sun gear (107) and the inner gear ring (102).

3. The welding apparatus for air compressor production as claimed in claim 2, wherein, The inflation assembly comprises a sealing ring (105) rotatably connected on the connecting head (104); each sealing ring (105) is fixedly connected in the corresponding cover (2); each inflation pipe (10403) is fixedly connected with the corresponding connecting head (104); a first cavity (10401) is formed between each sealing ring (105) and the corresponding connecting head (104); an air inlet pipe (106) is fixedly connected on each sealing ring (105); one end of the air inlet pipe (106) is in communication with the first cavity (10401); the other end penetrates through the corresponding cover (2) and is in communication with the outside; a communication groove (10402) is formed in each connecting head (104) to communicate the first cavity (10401) with the corresponding inflation pipe (10403); the first cavity (10401) is communicated with the corresponding inflation pipe (10403) through the communication groove (10402).

4. The welding apparatus for air compressor production as claimed in claim 3, wherein, The internal support assembly includes a first electric push rod (108) fixedly connected inside the inflation tube (10403); a fixing rod (202) is fixedly connected inside each connecting tube (201); an air outlet (20101) is formed between the outer side of each fixing rod (202) and the inner wall of the corresponding connecting tube (201); a fixing block (203) is fixedly connected to the output end of each first electric push rod (108); and several fixing blocks (203) are rotatably connected to the corresponding fixing rod (202). The linkage mechanism (204) consists of two connecting plates. The opposite sides of the two connecting plates are hinged to the corresponding fixed rod (202) and fixed block (203) respectively. The opposite sides of the two connecting plates are hinged to the corresponding extrusion rollers (205). One elastic membrane (109) is fixed between all the extrusion rollers (205) and the fixed block (203), and the other elastic membrane (109) is fixed between all the extrusion rollers (205) and the inflation tube (10403).

5. The welding apparatus for air compressor production as claimed in claim 1, wherein, The auxiliary components include several fixed plates (301) slidably connected to the first electric guide rail (1); a third electric guide rail (302) is fixedly connected to each fixed plate (301); a connecting frame (303) is slidably connected to each third electric guide rail (302); two clamping rings (304) are slidably connected to each connecting frame (303), and each clamping ring (304) has a groove (30401); two sliders (305) are fixedly connected to each connecting frame (303), and each slider (305) slides in the corresponding groove (30401); two second electric push rods (306) are fixedly connected to each connecting frame (303); a round hole (30402) is opened on each clamping ring (304); and a fixing hole (30501) is opened on each slider (305).

6. The welding apparatus for air compressor production as claimed in claim 4, wherein, A groove (20501) is provided in the middle of the extrusion roller (205).

7. The welding apparatus for air compressor production as claimed in claim 4, wherein It also includes a sealing ring (206) fixed inside the butt joint (201).

8. The welding apparatus for air compressor production as claimed in claim 1, wherein, The contact surface between the clamp (4) and the gas tank (8) is set to a rough surface.

9. The welding apparatus for air compressor production as claimed in claim 6, wherein, The extrusion roller (205) and the clamping ring (304) are both made of glass fiber.

10. The welding apparatus for air compressor production as claimed in claim 9, wherein, It also includes a laser cutter robot (7) and a fourth electric guide rail (9); the fourth electric guide rail (9) is installed on the front side of the first electric guide rail (1); the laser cutter robot (7) is slidably connected on the fourth electric guide rail (9).

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