A welding device for stainless steel filter processing

Abstract

The present application relates to filter processing technical field, especially to a kind of welding device for stainless steel filter processing, including screen plate and base, the base top is equipped with conveying belt for conveying screen plate and welding mechanism, the output end of the conveying belt is equipped with for pushing screen plate pusher assembly, the top of the base is equipped with with pusher assembly position corresponding lower mould block by lifting assembly, the two sides of the lower mould block are equipped with end cap seat and mounting seat respectively, the main shaft is rotatably connected on the mounting seat, the outer wall of the main shaft is equipped with for clamping the inner wall of screen plate air bag assembly and for supporting welding site gasket assembly.The present application does not need to disassemble workpiece, effectively reduces clamping adjustment time, while avoiding the deformation of workpiece caused by multiple clamping, improves production efficiency while guaranteeing product consistency, gasket wheel follows at the bottom of weld, plays a supporting role, helps to prevent welding or welding drop drop, avoids damaging the sealing property or filtering precision of filter element.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of filter processing, in particular to a welding device for stainless steel filter processing. BACKGROUND

[0002] The stainless steel filter is widely used in food, pharmaceutical, chemical, water treatment and other high-precision filtration fields due to its excellent corrosion resistance, high strength and good sanitary performance. The core component of the stainless steel filter is a stainless steel filter core, which is usually formed by rolling a precisely punched net-shaped stainless steel plate into a cylindrical body after welding the longitudinal seam, and then welding the ring seam with the end covers at both ends. In the field of filter core production and manufacturing, the welding process is the core link to realize the connection of the filter core cylinder and the end cover, ensure the structural integrity and sealing performance of the filter core.

[0003] At present, the existing technology relies on manual or semi-automatic equipment. The rolling, positioning, clamping of the net plate and the assembly of the end cover and other links often require manual intervention or are carried out in different devices in steps, which has problems such as difficult clamping, long adjustment time, large positioning error, etc. Especially for the ring seam welding of the end cover, the chuck positioning is easy to cause workpiece deformation, and multiple clamping is required, which seriously restricts the production efficiency and product consistency, and it is difficult to realize large-scale stable production. At the same time, when welding the thin-walled net plate, improper heat input control may cause welding through, welding drop and other phenomena, which damages the sealing performance and filtering precision of the filter core, thereby the practicability of the welding device for filter processing is poor. SUMMARY

[0004] The purpose of the present application is to solve the problem of poor practicability of the welding device for filter processing in the prior art, and to provide a welding device for stainless steel filter processing.

[0005] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows: a welding device for stainless steel filter processing, comprising a net plate and a base, the top of the base is provided with a conveying belt for conveying the net plate and a welding mechanism, the output end of the conveying belt is provided with a pushing assembly for pushing the net plate, the top of the base is provided with a lower mold block corresponding to the position of the pushing assembly through a lifting assembly, the two sides of the lower mold block are respectively provided with an end cover seat and a mounting seat, the mounting seat is rotatably connected with a main shaft, and the main shaft is located directly above the lower mold block, the inside of the end cover seat is provided with a cavity aligned with the main shaft, and a plurality of end covers are arranged in the cavity along the axial direction, the top of the end cover seat is provided with a limiting assembly, the outer wall of the main shaft is provided with a gas bag assembly for clamping the inner wall of the net plate and a gasket assembly for supporting the welding position, the gas bag assembly comprises a gas bag one and a gas bag two fixedly installed on the outer wall of the main shaft, and the gasket assembly comprises a sliding rod slidingly connected to the inside of the main shaft, and one end of the sliding rod extends out of the main shaft and is rotatably connected with a gasket wheel.

[0006] Preferably, the pushing assembly comprises an electric cylinder I fixedly installed on the top of the base, an output end of the electric cylinder I is fixedly installed with a pushing plate, and the pushing plate is arranged opposite to the bearing surface of the lower mold block.

[0007] Preferably, the lifting assembly comprises a cylinder I fixedly installed in the base, an output end of the cylinder I is fixedly connected with the bottom of the lower mold block, and the cylinder I is used for driving the lower mold block to lift.

[0008] Preferably, the end cover seat and the mounting seat are both slidingly connected to the top of the base, a cylinder II is fixedly installed on the top of the base, an output end of the cylinder II is fixedly connected with the side of the end cover seat away from the mounting seat, and the cylinder II is used for driving the end cover seat to approach or move away from the mounting seat.

[0009] Preferably, the two sides of the main shaft are respectively provided with a shaping assembly, the shaping assembly comprises a mold block seat fixedly installed on the top of the base, a cylinder IV is fixedly installed on the top of the mold block seat, and an output end of the cylinder IV is fixedly installed with an upper mold block close to the main shaft.

[0010] Preferably, the limiting assembly comprises a cylinder III fixedly installed on the top of the end cover seat, the cylinder III is vertically arranged and internally provided with a mechanical sensor, an output end of the cylinder III is fixedly installed with a horizontally arranged cylinder II, an output end of the cylinder II is fixedly installed with a limiting plate I, the limiting plate I is provided with a tapered opening with a wide lower part and a narrow upper part, a cylinder IV is fixedly installed on the top of the mounting seat, and an output end of the cylinder IV is towards the end cover seat and fixedly installed with a limiting plate II.

[0011] Preferably, the slide rod is elastically connected with the main shaft through the spring sleeved on the outer wall of the slide rod, and a displacement sensor for monitoring the displacement of the slide rod is fixedly installed in the main shaft.

[0012] Preferably, the welding mechanism comprises a lifting support slidingly connected to the top of the base, a welding gun is fixedly installed on the lifting support, an air suction mechanism is arranged above the welding gun, an argon gas interface of the welding gun is connected with an external argon gas supply device, a plurality of groups of air injection ports are formed in the outer wall of the main shaft and are arranged in a ring array around the outer wall of the main shaft, and a gas and electricity integrated rotary joint is fixedly connected to the end of the main shaft away from the end cover seat, and the gas and electricity integrated rotary joint is respectively communicated with the air duct of the air bag assembly and the gas source pipeline of the air injection port.

[0013] Preferably, a motor I is fixedly installed on the side wall of the mounting seat, an output shaft of the motor I is drivingly connected with the main shaft through a gear mechanism, a cylinder III is fixedly installed on the side of the end cover seat away from the mounting seat, a piston rod of the cylinder III horizontally extends into the placing cavity and is fixedly installed with a pushing block used for pushing the end cover out of the end cover seat.

[0014] Preferably, the top of the base is provided with a blanking port, and the blanking port is located below the end cover seat, and the sidewall of the base is provided with a discharge port in communication with the blanking port.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] 1. The present application integrates automatic net plate conveying, cylindrical shaping, longitudinal seam welding, automatic end cover feeding, ring seam welding and finished product blanking, without disassembling the workpiece, reducing clamping adjustment time, avoiding workpiece deformation caused by clamping force, improving production efficiency, ensuring product consistency, effectively solving the problem of traditional filter welding requiring multiple clamping positioning (such as clamping the cylinder body to weld the straight seam, and then disassembling and clamping the end cover to weld the ring seam), which not only wastes time but also affects precision due to clamping errors.

[0017] 2. In the present application, the gasket wheel follows the weld seam at the bottom and plays a supporting role, preventing weld penetration or weld drops, avoiding damage to the sealing performance or filtering accuracy of the filter, and the displacement sensor monitors the displacement of the slide rod in real time. When the displacement exceeds the set value, the control system stops welding immediately and sends an alarm to notify the staff to handle it, which helps to timely find the problem of excessive weld fluctuation caused by unloading, assembly, etc., prevents stress concentration points, damages the sealing performance, affects the appearance of the filter, and effectively ensures the welding quality.

[0018] 3. In the present application, a gas jet is arranged inside the main shaft, and argon gas is supplied through a gas-electric integrated rotary joint, which can continuously spray argon gas to the back of the weld seam during welding, forming a local oxygen-free environment, fundamentally eliminating the problem of oxidation of the back of the weld seam at high temperature, producing a chromium-poor layer and an oxide skin, and combining with the argon gas sprayed by the welding gun itself, forming a double protection for the front and back of the weld seam, ensuring that the entire weld seam can form a bright, silver-white high-quality weld seam, maintaining its best and consistent corrosion resistance. At the same time, the suction port of the suction mechanism is aligned with the welding area, which can immediately suck out harmful smoke and ozone generated during welding, not only protecting the health of the operator, but also allowing the operator to observe the molten pool more clearly, reducing the occurrence of welding defects.

[0019] 4. In the present application, when ring welding, a gas bag is used to internally expand and tighten the net plate and clamp the end cover, replacing the traditional mechanical chuck clamping, avoiding workpiece deformation caused by clamping force, and further ensuring welding quality. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The present application proposes a whole structure schematic diagram of a welding device for stainless steel filter processing;

[0021] Figure 2 is Figure 1 a local enlarged view of X in the middle;

[0022] Figure 3 is Figure 1 a close-up view of the middle Y;

[0023] Figure 4 is a back view of a partial axonometric view of a welding device for processing stainless steel filters according to the present invention;

[0024] Figure 5 is a partial axonometric view of a welding device for processing stainless steel filters according to the present invention; Figure 1 ;

[0025] Figure 6 is a half axonometric view of a welding device for processing stainless steel filters according to the present invention;

[0026] Figure 7 is Figure 6 a close-up view of the middle Z;

[0027] Figure 8 is a partial axonometric view of a welding device for processing stainless steel filters according to the present invention; Figure 2 .

[0028] In the figure: 1 screen, 2 end cover, 3 conveying belt, 4 base, 5 welding gun, 6 end cover seat, 7 mounting seat, 8 block seat, 41 discharge port, 42 electric cylinder one, 43 blanking port, 44 lower block, 45 cylinder one, 51 suction mechanism, 61 cylinder two, 62 limit plate one, 63 electric cylinder two, 64 electric cylinder three, 65 cylinder three, 71 main shaft, 72 gas-electric integrated rotary joint, 73 motor one, 74 motor two, 75 electric cylinder four, 76 air jet port, 77 gasket wheel, 78 air bag one, 79 air bag two, 710 limit plate two, 711 gear mechanism, 712 spring, 713 sliding rod, 714 displacement sensor, 81 cylinder four, 82 upper block. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0030] With reference to Figures 1 to 8The utility model relates to a welding device for stainless steel filter processing, which is applied to stainless steel filter core welding, realizes the overall control of the device through a control assembly, sends action instructions to each execution component, and comprises a base 4, the top of the base 4 is provided with a conveying belt 3 for conveying a mesh plate 1, the output end of the conveying belt 3 is provided with a pushing assembly, the pushing assembly comprises an electric cylinder one 42 fixedly installed on the top of the base 4, the output end of the electric cylinder one 42 is fixedly installed with a push plate, the top of the base 4 is provided with a lower mould block 44, the push plate is oppositely arranged with the bearing surface of the lower mould block 44, and the push plate is used for pushing the mesh plate 1 from the conveying belt 3 to the lower mould block 44, the bottom of the lower mould block 44 is fixedly connected with the inner wall of the base 4 through a cylinder one 45, the lower mould block 44 is driven to ascend and descend through the cylinder one 45, the top of the base 4 is slidably connected with an end cover seat 6 and a mounting seat 7, the lower mould block 44 is located between the end cover seat 6 and the mounting seat 7, the top of the base 4 is fixedly installed with a cylinder two 61 with the output end fixedly connected with the end cover seat 6, and the cylinder two 61 is located on the side, away from the mounting seat 7, of the end cover seat 6, a placing cavity is formed in the inside of the end cover seat 6, a plurality of end covers 2 are linearly arranged in the placing cavity along the axial direction, a feeding channel is formed in the outer wall of the end cover seat 6 and communicates with the placing cavity, and the feeding channel is used for supplementing the end covers 2, a main shaft 71 is rotatably connected to the side, close to the end cover seat 6, of the mounting seat 7, the main shaft 71 is located directly above the lower mould block 44 and opposite the opening of the placing cavity of the end cover seat 6, a motor two 74 is fixedly installed on the mounting seat 7, the motor two 74 is used for driving the mounting seat 7 to move at a constant speed along a straight line (this is prior art, and the specific structure will not be repeated here), a shaping assembly is arranged on the two sides of the main shaft 71, the shaping assembly comprises a mould block seat 8 fixedly installed on the top of the base 4, a cylinder four 81 is fixedly installed on the top of the mould block seat 8, the output end of the cylinder four 81 is close to the main shaft 71 and is fixedly installed with an upper mould block 82, a gap is reserved between the two upper mould blocks 82, the cylinder two 61 drives the end cover seat 6 to be close to the mounting seat 7, one end of the main shaft 71 is inserted into the end cover seat 6, a supporting point is added to the main shaft 71, and the stability of the main shaft 71 is enhanced, the conveying belt 3 conveys the mesh plate 1 to the pushing assembly, the electric cylinder one 42 drives the push plate to push the mesh plate 1 to the lower mould block 44, the cylinder one 45 drives the lower mould block 44 to ascend and be close to the main shaft 71, the mesh plate 1 is clamped and shaped and bent by the lower mould block 44 and the main shaft 71, the cylinder four 81 on the two sides of the main shaft 71 drives the upper mould block 82 to extend out, clamps the upper part of the mesh plate 1 in cooperation with the main shaft 71, shapes the mesh plate 1 into a cylindrical shape, and the interface of the mesh plate 1 is located in the gap between the upper mould blocks 82, so that subsequent welding is facilitated.

[0031] The top of the end cover seat 6 is fixedly installed with an electric cylinder three 64 arranged vertically, and a mechanical sensor is arranged in the inside of the electric cylinder three 64. The telescopic end of the electric cylinder three 64 is fixedly installed with an electric cylinder two 63 arranged horizontally. The telescopic end of the electric cylinder two 63 is fixedly installed with a limiting plate one 62. A tapered opening with a wide lower part and a narrow upper part is arranged on the limiting plate one 62. A gasket assembly is arranged on the main shaft 71. The gasket assembly comprises a sliding rod 713 which is slidingly connected to the inside of the main shaft 71. One end of the sliding rod 713 extends out of the main shaft 71 and is rotatably connected with a gasket wheel 77. The sliding rod 713 is elastically connected with the main shaft 71 through a spring 712 which is sleeved on the outer wall of the sliding rod 713, so as to realize elastic return. A displacement sensor 714 is fixedly installed in the inside of the main shaft 71. The detection end of the displacement sensor 714 is aligned with the sliding rod 713, and is used for monitoring the displacement of the sliding rod 713. The electric cylinder three 64 drives the electric cylinder two 63 to drive the limiting plate one 62 to move downwards. When the tapered opening contacts the main shaft 71, the mechanical sensor detects the pressure and feeds back a signal. The electric cylinder three 64 stops moving. The motor two 74 drives the mounting seat 7 to move at a constant speed along a straight line, so that the main shaft 71 continuously inserts into the end cover seat 6. The limiting plate one 62 limits the screen plate 1 to slide with the main shaft 71. When the gasket wheel 77 in the main shaft 71 contacts the screen plate 1 and is pressed downwards, the sliding rod 713 extrudes the spring 712 to slide downwards. The displacement sensor 714 detects the displacement change and feeds back a signal. The mounting seat 7 stops moving.

[0032] The outer wall of the main shaft 71 is provided with a plurality of groups of air injection ports 76, each group of air injection ports 76 is arranged in a ring array around the outer wall of the main shaft 71, the main shaft 71 is fixedly connected with the gas-electric integrated rotary joint 72 at the end away from the end cover seat 6, the gas-electric integrated rotary joint 72 supplies argon gas to the air injection port 76 through the gas circuit, the main shaft 71 is provided with a gas bag assembly, the gas bag assembly includes a gas bag one 78 and a gas bag two 79 fixedly installed on the outer wall of the main shaft 71, the gas bag one 78 is located at the middle position of the main shaft 71, and the gas bag two 79 is located at the end of the main shaft 71 away from the mounting seat 7, the gas inlets of the gas bag one 78 and the gas bag two 79 are communicated with the gas force interface of the gas-electric integrated rotary joint 72 through the internal gas circuit of the main shaft 71, the top of the base 4 is slidably connected with a lifting support, the welding gun 5 and the air suction mechanism 51 are fixedly installed on the lifting support, and the air suction mechanism 51 is located above the welding gun 5, the argon gas interface of the welding gun 5 is connected with an external argon gas supply device, the control assembly controls the lifting support to drive the welding gun 5 to move to the straight seam arc starting point and arc starting according to the feedback signal, to adapt to the error in the blanking and positioning of the filter plate 1, prevent the welding from being missed or deviated to affect the quality and production efficiency of the filter element, the welding gun 5 and the mounting seat 7 advance at the same speed, the gasket wheel 77 follows the movement at the bottom of the weld, prevents the welding from being penetrated or the welding drops from falling, causes the filter element sealing or the filtering precision to be damaged, the gas-electric integrated rotary joint 72 supplies argon gas to the air injection port 76, the air injection port 76 continuously sprays air, the filter element is commonly used for filtering chemical agents, food, high-purity water and other media, the corrosion resistance of the back of the weld (usually the side through which the medium flows in / out) is as important as the front, and stainless steel will react with oxygen and nitrogen in the air at high temperature, causing oxidation, generating chromium carbide, thereby causing a chromium-poor layer, causing the corrosion resistance of the back of the weld to drop sharply, and producing oxide scale, the air injection port 76 sprays argon gas to the back of the weld, the argon gas replaces and removes the air on the back of the welding area, thereby forming an oxygen-free local environment, ensuring that the back of the weld can also form a bright, silvery and high-quality weld, maintaining its best corrosion resistance, saving the trouble of subsequent pickling, polishing or re-passivation of the back weld, which is crucial for filter elements with complex structure and difficult to access the inside, at the same time, the welding gun 5 sprays argon gas to form double protection, so that the weld in the welding process is completely located in an oxygen-free environment, preventing the weld from appearing oxide scale, causing the corrosion resistance to drop sharply and affecting the appearance and quality of the filter element, double protection ensures that the weld has consistent and complete passivation ability throughout the range, fundamentally eliminating the potential corrosion leakage risk caused by back oxidation, the suction port of the air suction mechanism 51 continuously sucks away the welding fume in the weld area, the air outlet is connected with an external exhaust system through a pipeline, effectively sucking away the smoke and ozone generated during welding, enabling the operator to more clearly observe the molten pool and the welding process, reducing welding defects, while protecting the health of workers and the environment, the displacement sensor 714 monitors the displacement of the slide rod 713 in real time, when the displacement exceeds the set value, the control assembly stops welding immediately and sends an alarm to notify the worker to handle, preventing the weld from forming stress concentration points due to excessive fluctuation caused by blanking, assembly and other reasons,The damage of the sealing affects the appearance of the filter element. After the straight seam welding to the end, the gasket wheel 77 is separated from the mesh plate 1, the slide rod 713 is reset under the action of the spring 712, the welding gun 5 stops arc and moves up and returns to the upper of the arc starting point.

[0033] The side wall of the mounting seat 7 is fixedly provided with a motor one 73, the output shaft of the motor one 73 is connected with the main shaft 71 through a gear mechanism 711, and is used for driving the main shaft 71 to rotate at a constant speed. The top of the mounting seat 7 is fixedly provided with an electric cylinder four 75, the output end of the electric cylinder four 75 faces the end cover seat 6, and a limiting plate two 710 is fixedly arranged. The side of the end cover seat 6 away from the mounting seat 7 is fixedly provided with a cylinder three 65, the piston rod of the cylinder three 65 horizontally extends into the placing cavity and is fixedly provided with a pushing block, the pushing block is used for pushing the end cover 2 out of the end cover seat 6. The control assembly calculates the deviation between the theoretical arc starting point and the actual arc starting point, controls the electric cylinder four 75 to extend, and realizes the limiting of the mesh plate 1 through the limiting plate two 710. During the constant speed resetting process of the mounting seat 7, the electric cylinder four 75 keeps limiting, until the gasket wheel 77 is separated from the mesh plate 1 and located at the other end of the mesh plate 1. The cylinder three 65 extends to push out an end cover 2. The limiting plate one 62 moves down to push the end cover 2 to the arc starting point and then resets, so that the end cover 2 corresponds to the position of the air bag one 78. The air bag one 78 expands to support the mesh plate 1 from the inside and clamp the end cover 2. The motor one 73 drives the main shaft 71 to rotate at a constant speed through the gear mechanism 711. The welding gun 5 moves down to complete the circular seam welding. The argon protection and the air exhaust and smoke exhaust actions continue during the welding process. After the welding is completed, the air bag one 78 is deflated, the circular seam welding of the other end stop arc point is carried out. After the main shaft 71 is adjusted in position according to the deviation, the pushing, clamping and rotating welding actions of the end cover 2 are repeated, the circular seam welding of the other end is completed, and the problems such as large clamping difficulty, long adjustment time, large error, easy deformation and the need for multiple clamping in the conventional end cover 2 welding using chuck positioning are avoided. The efficiency and quality are improved to realize automation.

[0034] The top of the base 4 is provided with a blanking hole 43, and the blanking hole 43 is located below the end cover seat 6. The side wall of the base 4 is provided with a discharge hole 41 in communication with the blanking hole 43. After the circular seam welding is completed, the limiting plate one 62 moves down after reaching the arc starting point. During the resetting process of the end cover seat 6, the limiting plate one 62 pulls down the welded filter element, the filter element falls into the blanking hole 43 and falls out of the discharge hole 41.

[0035] In use, the raw material net plate 1 is sent into the device through the conveying belt 3, the end cover 2 is placed into the end cover seat 6, the power, gas and argon are connected into the main shaft 71 through the pneumatic and electric integrated rotary joint 72 to supply each internal component, after the work starts, the air cylinder two 61 pushes the end cover seat 6 to the end and makes one end of the main shaft 71 inserted, in order to improve the strength of the main shaft 71, the air cylinder one 42 pushes the net plate 1 to the lower die block 44, the air cylinder one 45 drives the lower die block 44 to rise, the net plate 1 is clamped by the lower die block 44 and the main shaft 71 and is shaped and bent, at the same time, the air cylinder four 81 drives the upper die block 82 to extend and cooperate with the main shaft 71 to clamp the upper part of the net plate 1 which is turned up, the net plate 1 is completed to be shaped into a cylindrical shape, and the interface of the net plate 1 is located in the gap reserved between the upper die block 82, waiting for the welding gun 5 to carry out the straight seam welding.

[0036] The air cylinder three 64 drives the limiting plate one 62 to move down, the limiting plate one 62 is provided with a tapered opening which is wide at the lower part and narrow at the upper part, with the moving down of the limiting plate one 62, the opening is in contact with the main shaft 71, the mechanical sensor in the air cylinder three 64 stops working after detecting the force, then the mounting seat 7 is driven by the motor two 74 to move forward at a constant speed, the main shaft 71 moves forward together and continuously inserts into the end cover seat 6, the limiting plate one 62 limits the net plate 1 to prevent the net plate 1 from slipping with the main shaft 71, finally, the lining wheel 77 in the main shaft 71 contacts and is pressed down by the net plate 1, causing the slide rod 713 to slide down, the displacement sensor 714 immediately feeds back the signal, and the mounting seat 7 stops.

[0037] The welding gun 5 moves to the arc starting point of the straight seam according to the feedback signal and starts the arc to adapt to the error in the blanking and positioning of the net plate 1, prevent the welding from being missed or deviated to affect the quality and production efficiency of the filter element, the air outlet 76 continuously sprays argon, the welding gun 5 moves forward at the same speed as the mounting seat 7, the lining wheel 77 follows the bottom of the welding seam, preventing the welding from being penetrated or the welding drops from falling to damage the sealing performance or the filtering precision of the filter element, the welding gun 5 automatically sprays argon during welding to protect, the air suction mechanism 51 continuously sucks air, so that the welding seam in the welding is completely located in an oxygen-free environment, the displacement sensor 714 monitors the displacement of the slide rod 713 in real time during welding, and when the displacement exceeds the set value, the welding is immediately stopped and an alarm is given to inform the worker to handle, finally, the straight seam is welded to the end, the lining wheel 77 comes out of the net plate 1 and moves up on the slide rod 713 under the action of the spring 712, the welding gun 5 stops the arc and moves up to above the arc starting point.

[0038] The upper mold block 82 is reset with the lower mold block 44, the next mesh plate 1 is pushed onto the lower mold block 44 to wait for processing, the control assembly calculates the deviation according to the theoretical arc starting point and the current arc starting point and feeds back, the electric cylinder four 75 extends according to the deviation, the mesh plate 1 is limited through the limiting plate two 710, then the mounting seat 7 is uniformly reset, the electric cylinder four 75 is matched with the follow-up, the mesh plate 1 is limited, until the gasket wheel 77 comes out of the mesh plate 1, the cylinder three 65 extends to push out an end cover 2, the limiting plate one 62 moves down and pushes the end cover 2 to the arc starting point and then resets, the air bag one 78 inflates to support the mesh plate 1 from the inside and clamp the end cover 2, then the motor one 73 drives the main shaft 71 to rotate at a constant speed through the gear mechanism 711, the welding gun 5 moves down to complete the welding of the circular seam, the argon protection consistent with the straight seam welding is carried out during the period, so as to ensure the welding quality, then the air bag one 78 deflates, the main shaft 71 is adjusted according to the deviation, the next end cover 2 is pushed out, the limiting plate one 62 pushes the end cover 2 to the arc stopping point and then completes the welding of the circular seam, finally the limiting plate one 62 moves down to the arc starting point, the end cover seat 6 is reset and the filter element after welding is pulled down, the filter element falls into the dropping port 43 and falls out of the discharge port 41.

[0039] The above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A welding device for processing of stainless steel filters, comprising a screen plate (1) and a base (4), characterized in that, The bottom (4) top is provided with a conveying belt (3) for conveying the mesh plate (1) and a welding mechanism for welding longitudinal seam and ring seam, the output end of the conveying belt (3) is provided with a pushing assembly for pushing the mesh plate (1), the top of the bottom (4) is provided with a lower mold block (44) corresponding to the position of the pushing assembly through a lifting assembly, the two sides of the lower mold block (44) are respectively provided with an end cap seat (6) and a mounting seat (7), the mounting seat (7) is rotatably connected with a main shaft (71), and the main shaft (71) is located directly above the lower mold block (44), the inside of the end cap seat (6) is provided with a cavity opening aligned with the main shaft (71) and a placing cavity, and a plurality of end caps (2) are arranged in the placing cavity along the axial direction, the top of the end cap seat (6) is provided with a limiting assembly, the outer wall of the main shaft (71) is provided with a gas bag assembly for expanding and supporting the mesh plate (1) from the inside and clamping the end cap (2) and a gasket assembly for supporting the welding position, the gas bag assembly comprises a gas bag one (78) and a gas bag two (79) fixedly installed on the outer wall of the main shaft (71), the gasket assembly comprises a sliding rod (713) slidably connected to the inside of the main shaft (71), and one end of the sliding rod (713) extends out of the main shaft (71) and is rotatably connected with a gasket wheel (77), and the end cap seat (6) and the mounting seat (7) are slidably connected to the top of the bottom (4). The limiting assembly comprises an electric cylinder three (64) fixedly installed on the top of the end cap seat (6), the electric cylinder three (64) is vertically arranged, and a mechanical sensor is arranged in the electric cylinder three (64), the telescopic end of the electric cylinder three (64) is fixedly installed with an electric cylinder two (63) arranged transversely, the telescopic end of the electric cylinder two (63) is fixedly installed with a limiting plate one (62), the limiting plate one (62) is provided with a tapered opening which is wide at the bottom and narrow at the top, and the top of the mounting seat (7) is fixedly installed with an electric cylinder four (75), the output end of the electric cylinder four (75) faces the end cap seat (6) and is fixedly installed with a limiting plate two (710).

2. The welding apparatus for stainless steel filter processing according to claim 1, characterized by The pushing assembly comprises an electric cylinder one (42) fixedly installed on the top of the bottom (4), and the output end of the electric cylinder one (42) is fixedly installed with a push plate, and the push plate is arranged opposite to the bearing surface of the lower mold block (44).

3. The welding apparatus for stainless steel filter processing according to claim 1, characterized by The lifting assembly comprises a gas cylinder one (45) fixedly installed in the bottom (4), and the output end of the gas cylinder one (45) is fixedly connected with the bottom of the lower mold block (44), and the gas cylinder one (45) is used for driving the lower mold block (44) to lift.

4. The welding apparatus for stainless steel filter processing according to claim 1, characterized by The top of the bottom (4) is fixedly installed with a gas cylinder two (61), the output end of the gas cylinder two (61) is fixedly connected with one side of the end cap seat (6) away from the mounting seat (7), which is used for driving the end cap seat (6) to approach or move away from the mounting seat (7), and the mounting seat (7) is fixedly installed with a motor two (74), and the motor two (74) is used for driving the mounting seat (7) to move uniformly along a straight line.

5. The welding apparatus for stainless steel filter processing according to claim 1, characterized by Two sides of the main shaft (71) are respectively provided with a plastic assembly, the plastic assembly comprises a mold block seat (8) fixedly installed on the top of the base (4), the top of the mold block seat (8) is fixedly installed with a cylinder four (81), the output end of the cylinder four (81) is close to the main shaft (71) and is fixedly installed with an upper mold block (82).

6. The welding apparatus for stainless steel filter processing according to claim 1, characterized by The slide rod (713) is elastically connected with the main shaft (71) through the spring (712) sleeved on the outer wall of the slide rod (713), and the inside of the main shaft (71) is fixedly installed with a displacement sensor (714) for monitoring the displacement of the slide rod (713).

7. The welding apparatus for stainless steel filter processing according to claim 1, characterized by The welding mechanism comprises a lifting support slidably connected to the top of the base (4), the lifting support is fixedly installed with a welding gun (5), the upper portion of the welding gun (5) is provided with an air suction mechanism (51), the argon gas interface of the welding gun (5) is connected with an external argon gas supply device, a plurality of groups of air injection ports (76) are formed in the outer wall of the main shaft (71), and each group of air injection ports (76) is arranged in an annular array around the outer wall of the main shaft (71), one end of the main shaft (71) away from the end cover seat (6) is fixedly connected with a gas and electricity integrated rotary joint (72), and the gas and electricity integrated rotary joint (72) is respectively in communication with the air duct of the air bag assembly and the gas source pipeline of the air injection port (76).

8. The welding apparatus for stainless steel filter processing according to claim 1, characterized by The sidewall of the mounting seat (7) is fixedly installed with a motor one (73), the output shaft of the motor one (73) is drivingly connected with the main shaft (71) through a gear mechanism (711), one side of the end cover seat (6) away from the mounting seat (7) is fixedly installed with a cylinder three (65), the piston rod of the cylinder three (65) horizontally extends into the placement cavity and is fixedly installed with a pushing block for pushing the end cover (2) out of the end cover seat (6).

9. The welding apparatus for stainless steel filter processing according to claim 1, characterized by The top of the base (4) is provided with a blanking port (43), and the blanking port (43) is located below the end cover seat (6), and the sidewall of the base (4) is provided with a discharge port (41) in communication with the blanking port (43).

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