Welding equipment and method for flowmeter shell production

Abstract

The invention discloses welding equipment for flowmeter shell production and a method thereof, belongs to the technical field of flowmeter welding, and provides the following scheme that the welding equipment comprises a welding mechanism, and a liquid circulating mechanism is arranged on the welding mechanism; according to the arc welding device, liquid attached to the temperature control adjusting equipment is scraped by the scraper through rotation of the turbulent flow assembly, so that the liquid flows uniformly to transfer temperature, the turbulent flow assembly drives the second magnet to rotate, the second magnet drives the first magnet and the steering assembly to rotate through magnetic attraction, and the arc welding device moves to conduct welding operation; the drainage assembly and the gear ring are driven by the rotating shaft to transmit, so that the drainage assembly can be matched with the liquid inlet assembly and the liquid outlet assembly to achieve vertical circulating flow of liquid, internal circulating temperature control is kept, thermal stress concentration in a welding area can be avoided, and meanwhile deformation of a new energy automobile flowmeter shell caused by thermal stress concentration is prevented; and the precision manufacturing requirements of new energy automobile parts are met.

Description

Technical Field

[0001] The present invention relates to the technical field of flowmeter welding, and particularly relates to a welding device and method for producing a flowmeter housing. Background Art

[0002] In the production process of new energy-driven vehicles such as plug-in hybrid drive, pure electric drive, and fuel cell drive, flowmeters are often used to measure the flow rate of liquid or gas media in new energy vehicles. When processing the flowmeter housing, welding equipment such as intelligent casting islands in cooperation with automatic and semi-automatic arc or plasma arc welders is used for welding. Among them, circumferential welding is a key process link, and the following technical risks need to be focused on for quality control: First, if the molten metal residues generated during the welding process are not effectively blocked, they may invade the internal cavity through the unblocked end of the housing, which not only significantly increases the difficulty of subsequent cleaning operations, but also the remaining hard welding slag may cause physical damage to the precision measurement components. Second, the heat conduction problem in the welding heat-affected zone cannot be ignored either. Especially when the wall thickness of the housing is relatively thin or the local structural strength is insufficient, local temperature gradients are likely to induce material thermal stress concentration, resulting in geometric deformation of the housing or even causing microstructural phase transformation, thereby affecting the measurement accuracy of the equipment and its overall service life.

[0003] In view of the above problems, the present invention document proposes a welding device and method for producing a flowmeter housing. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems that if the molten metal residues generated during the welding process are not effectively blocked, they may invade the internal cavity through the unblocked end of the housing, and that local temperature gradients during the welding process are likely to induce material thermal stress concentration, resulting in geometric deformation of the housing or even causing microstructural phase transformation, thereby affecting the measurement accuracy of the equipment and its overall service life, and to propose the described welding device and method for producing a flowmeter housing.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solution: A welding device for producing a flowmeter housing, including a welding mechanism, and a liquid circulation mechanism is arranged on the welding mechanism; The welding mechanism includes a welding adjustment component, one end of the welding adjustment component is connected to an elastic component, the elastic component passes through a liquid storage cylinder and is connected to a first piston, the first piston is arranged in the liquid storage cylinder, a protection component and a silica gel rubber airbag are arranged below the liquid storage cylinder, a steering component is arranged on the liquid storage cylinder, a plurality of first magnets are arranged in the steering component, and an arc welding device is arranged on the steering component; The liquid circulation mechanism includes a flow disturbance component which penetrates through the liquid storage cylinder and the first piston. A plurality of second magnets are arranged below the flow disturbance component. The second magnets and the first magnets respectively adhere to the inner wall and the outer surface of the liquid storage cylinder, and the second magnets and the first magnets attract each other magnetically. The bottom of the flow disturbance component is connected to a liquid outlet component, and the liquid outlet component is connected to a drainage component below. The drainage component is in transmission with two gear rings, and the gear rings are fixedly connected to the liquid storage cylinder through support rods. The drainage component is connected to a liquid inlet component below, and the liquid inlet component is located in the silicone rubber airbag.

[0006] Preferably, an inner installation part is fixedly installed inside the liquid storage cylinder, a temperature control and adjustment device is installed on the inner installation part, and a plurality of positioning rods are arranged below the liquid storage cylinder.

[0007] Preferably, the welding adjustment component includes a base, a support is fixedly connected above the base, and an electric push rod is fixedly installed on the support; A limit seat is fixedly connected above the base, and the limit seat limits the flowmeter housing.

[0008] Preferably, the protection component includes a cloth cover which is fixedly connected below the liquid storage cylinder, and an annular strip is fixedly connected below the cloth cover.

[0009] Preferably, the elastic component includes a fixed platform. The upper part of the fixed platform is fixedly connected to the electric push rod. Two sliding rods and two springs are fixedly connected below the fixed platform. The bottom ends of the two sliding rods are fixedly connected to the first piston. The sliding rods slide in sliding sleeves, the upper part of the sliding sleeves is fixedly connected to the springs, and the sliding sleeves are fixedly installed on the liquid storage cylinder.

[0010] Preferably, the steering component includes two guide rails which are fixedly installed on the outer surface of the liquid storage cylinder. A slide rail is slidably connected to the guide rails. A circular ring plate is fixedly connected between the two slide rails. A plurality of first magnets are fixedly connected inside the circular ring plate. A mounting plate is fixedly connected to one side of the circular ring plate, and the arc welding device is installed on the mounting plate.

[0011] Preferably, the flow disturbance component includes a frame which is fixedly connected above the liquid storage cylinder. A motor is fixedly installed on the frame. The output shaft of the motor is fixedly connected to a rotating shaft. The rotating shaft is respectively rotatably installed on the liquid storage cylinder and the first piston through two bearings. A plurality of fixing rods are fixedly connected to the outside of the rotating shaft. One ends of the plurality of fixing rods are fixedly connected to the same circular ring strip. A plurality of second magnets are installed on the outer surface of the circular ring strip. A scraper is installed below the circular ring strip, and the scraper adheres to the temperature control and adjustment device.

[0012] Preferably, the liquid outlet assembly includes a liquid outlet pipe provided with a plurality of liquid outlet heads. The top end of the liquid outlet pipe is fixedly connected to the rotating shaft, and the bottom end of the liquid outlet pipe communicates with two one-way liquid outlet pipes. The liquid inlet assembly includes a liquid inlet pipe, with two one-way liquid inlet pipes communicating above the liquid inlet pipe and a plurality of liquid inlet heads provided below the liquid inlet pipe.

[0013] Preferably, the drainage assembly includes a drainage cylinder. The upper and lower parts of the drainage cylinder communicate with two one-way liquid outlet pipes and two one-way liquid inlet pipes respectively. A second piston is arranged in the drainage cylinder. One side of the second piston is fixedly connected to a connecting rod, and the connecting rod passes through the drainage cylinder and is fixedly connected to an annular frame. A crankshaft is arranged in the annular frame. The crankshaft is rotatably installed on two fixing bars through two bearings respectively, and the two fixing bars are fixedly connected to the drainage cylinder. Both ends of the crankshaft are fixedly connected to gears, and the gears are meshed with a toothed ring.

[0014] A usage method of a welding device for manufacturing a flowmeter housing includes the following steps: S1. When welding the flowmeter housing, limit the flowmeter housing on the limit seat, and control the electric push rod to extend, so that the elastic component drives the liquid storage cylinder to move downward, causing the arc welding device and the silica gel rubber airbag to move downward. The silica gel rubber airbag enters the flowmeter housing. At the same time, the annular strip is limited by the top of the flowmeter housing, causing the cloth cover to contract. S2. After the positioning rod is inserted into the flowmeter flange hole for positioning, continue to push the liquid storage cylinder downward, which is blocked by the flowmeter housing. At this time, the spring deforms, and the sliding rod pushes the first piston downward, causing the liquid to continuously enter the silica gel rubber airbag, and the silica gel rubber airbag expands to fill the flowmeter housing. S3. Then adjust the welding angle of the arc welding device, and control the rotating shaft to rotate through the motor. The rotating shaft drives the fixed rod and the circular ring strip to rotate. The circular ring strip drives the second magnet to rotate. The second magnet drives the first magnet and the circular ring plate to rotate through magnetic attraction. The circular ring plate drives the arc welding device to rotate through the mounting plate for welding processing. S4. During the rotation of the rotating shaft, it also drives the liquid inlet assembly and the drainage assembly to rotate, causing the gears to revolve and mesh with the toothed ring for transmission. The gears drive the crankshaft to rotate. The crankshaft drives the connecting rod to reciprocate through the annular frame, and the connecting rod drives the second piston to reciprocate. The second piston extracts the bottom liquid through the liquid inlet heads, and the first piston switches the liquid inlet through two one-way liquid inlet pipes. At the same time, the liquid is transported unidirectionally through the one-way liquid outlet pipes, and the liquid is discharged to the temperature control and regulation equipment area through the liquid outlet heads. The temperature control and regulation equipment adjusts the liquid temperature, and the liquid is transported from top to bottom to realize liquid circulation, avoiding thermal stress concentration at the welding position. After welding, the electric push rod retracts upward, causing the spring to first drive the sliding rod and the first piston to reset upward, enabling the silicone rubber airbag to flow upward, and then the liquid storage cylinder resets upward in sequence. When the silicone rubber airbag detaches from the flowmeter housing, the cloth cover unfolds downward to protect the silicone rubber airbag. Then, the welded flowmeter housing is taken out, and the next round of welding operation is carried out.

[0015] Compared with the prior art, the present invention provides a welding device and method for producing a flowmeter housing, having the following beneficial effects: 1. For the welding device and method for producing the flowmeter housing, by rotating the flow disturbance component, the scraper scrapes off the liquid adhering to the temperature control adjustment device, thereby facilitating the uniform transfer of temperature by the liquid flow. Moreover, the flow disturbance component drives the second magnet to rotate, and the second magnet drives the first magnet and the steering component to rotate through magnetic attraction, enabling the arc welding device to move for welding operations. Secondly, through the rotation shaft driving the drainage component to be in transmission with the gear ring, the drainage component can cooperate with the liquid inlet component and the liquid outlet component to achieve the up and down circulating flow of the liquid, maintaining the internal circulating temperature control, thereby avoiding the concentration of thermal stress in the welding area and preventing the deformation of the new energy vehicle flowmeter housing caused by the concentration of thermal stress, meeting the precision manufacturing requirements of new energy vehicle accessories.

[0016] 2. For the welding device and method for producing the flowmeter housing, by pushing down the elastic component and the liquid storage cylinder with the electric push rod, the silicone rubber airbag enters the flowmeter housing, and by continuously pushing down, the elastic component is stressed to drive the first piston to move downward. At this time, the silicone rubber airbag expands to fill the flowmeter housing, and at the same time, the protection component seals the port of the flowmeter housing, effectively avoiding the entry of welding slag. Secondly, by driving the liquid storage cylinder to retract upward with the electric push rod, the silicone rubber airbag is pulled out of the flowmeter housing upward, and the cloth cover automatically unfolds downward to protect the silicone rubber airbag, preventing the adhesion of impurities from damaging the inside of the flowmeter housing during the next use.

[0017] 3. The welding equipment and method for producing the flowmeter housing drive the elastic component and the liquid storage cylinder to move downward through the welding adjustment component, so that the silica gel rubber airbag enters the flowmeter housing. When the liquid storage cylinder descends to the maximum limit, at this time, the first piston can be directly pushed by the elastic component to pressurize the liquid into the silica gel rubber airbag. The silica gel rubber airbag expands to fill the inner cavity of the flowmeter housing, thereby achieving the effect of internal support on the flowmeter housing. At this time, the second magnet is driven to rotate by the flow disturbance component, and the magnetic attraction between the second magnet and the first magnet can drive the steering component and the arc welding device to rotate, thereby performing a moving welding operation. At the same time, the flow disturbance component drives the drainage component to drive with the gear ring, so as to realize the circulating flow of the liquid, avoid the generation of thermal stress in the arc welding area, and cooperate with the internal support of the silica gel rubber airbag to effectively ensure the arc welding effect, improve the arc welding quality, and provide key technical support for the safety and reliability of new energy vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a perspective view of a welding equipment for producing a flowmeter housing according to the present invention; Figure 2 is a perspective view of the welding adjustment component of a welding equipment for producing a flowmeter housing according to the present invention; Figure 3 is a perspective view of the flowmeter housing of a welding equipment for producing a flowmeter housing according to the present invention positioned on the limit seat; Figure 4 is a perspective view of the cross-section of the silica gel rubber airbag inserted into the flowmeter housing of a welding equipment for producing a flowmeter housing according to the present invention; Figure 5 is a perspective view of the cross-section of the connection between the liquid storage cylinder and the steering component of a welding equipment for producing a flowmeter housing according to the present invention; Figure 6 is a perspective view of the liquid storage cylinder of a welding equipment for producing a flowmeter housing according to the present invention; Figure 7 is a perspective view of the cross-section of the connection between the steering component and the flow disturbance component of a welding equipment for producing a flowmeter housing according to the present invention; Figure 8 is a perspective view of the circular ring plate of a welding equipment for producing a flowmeter housing according to the present invention; Figure 9 is a perspective view of the cross-section of the drainage component of a welding equipment for producing a flowmeter housing according to the present invention; Figure 10 In the present invention Figure 9 Enlarged view of part A.

[0019] In the figure: 100, welding mechanism; 101, welding adjustment component; 1011, bracket; 1012, base; 1013, limit seat; 1014, electric push rod; 102, elastic component; 1021, fixed table; 1022, sliding rod; 1023, spring; 1024, sliding sleeve; 103, first piston; 104, liquid storage cylinder; 105, steering component; 1051, guide rail; 1052, circular ring plate; 1053, slide rail; 1054, mounting plate; 106, arc welding device; 107, inner mounting part; 108, temperature control adjustment equipment; 109, protection component; 1091, cloth cover; 1092, annular strip; 110, first magnet; 200, liquid circulation mechanism; 201, flow disturbance component; 2011, motor; 2012, frame; 2013, rotating shaft; 2014, annular strip; 2015, fixed rod; 2016, scraping plate; 202, liquid outlet component; 2021, liquid outlet pipe; 2022, liquid outlet head; 2023, one-way liquid outlet pipe; 203, gear ring; 204, silicone rubber airbag; 205, liquid inlet component; 2051, liquid inlet head; 2052, liquid inlet pipe; 2053, one-way liquid inlet pipe; 206, drainage component; 2061, drainage cylinder; 2062, second piston; 2063, connecting rod; 2064, fixed strip; 2065, crankshaft; 2066, annular frame; 2067, gear; 207, second magnet. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0022] Embodiment 1: Refer to Figures 1-8 , a welding device for producing a flowmeter housing, including a welding mechanism 100, and a liquid circulation mechanism 200 is arranged on the welding mechanism 100; The welding mechanism 100 includes a welding adjustment assembly 101. One end of the welding adjustment assembly 101 is connected to an elastic assembly 102. The elastic assembly 102 passes through a liquid storage cylinder 104 and is connected to a first piston 103. The first piston 103 is arranged in the liquid storage cylinder 104. A protection assembly 109 and a silica gel rubber airbag 204 are arranged below the liquid storage cylinder 104. A steering assembly 105 is arranged on the liquid storage cylinder 104. The steering assembly 105 includes two guide rails 1051. The two guide rails 1051 are fixedly installed on the outer surface of the liquid storage cylinder 104. A slide rail 1053 is slidably connected to the guide rails 1051. The guide rails 1051 can guide the slide rail 1053 to ensure the smooth sliding of the slide rail 1053. At the same time, both the guide rails 1051 and the slide rail 1053 are annular structures, so as to realize the smooth rotation of the circular ring plate 1052. A circular ring plate 1052 is fixedly connected between the two slide rails 1053. The inside of the circular ring plate 1052 is fixedly connected to a plurality of first magnets 110. One side of the circular ring plate 1052 is fixedly connected to a mounting plate 1054. An arc welding device 106 is installed on the mounting plate 1054. A plurality of first magnets 110 are arranged in the steering assembly 105, and an arc welding device 106 is arranged on the steering assembly 105; The liquid circulation mechanism 200 includes a flow disturbing component 201. The flow disturbing component 201 includes a frame 2012. The frame 2012 is fixedly connected above the liquid storage cylinder 104. A motor 2011 is fixedly installed on the frame 2012. The motor 2011 can be fixed through the frame 2012 to ensure the stability of the motor 2011. The output shaft of the motor 2011 is fixedly connected with a rotating shaft 2013. The rotating shaft 2013 is rotatably installed on the liquid storage cylinder 104 and the first piston 103 respectively through two bearings. The rotating shaft 2013 can smoothly perform rotational motion through the bearings, and sealed bearings can be switched according to requirements to ensure the sealing performance of the first piston 103. A plurality of fixing rods 2015 are fixedly connected to the outside of the rotating shaft 2013. One ends of the plurality of fixing rods 2015 are fixedly connected with the same circular ring strip 2014. A plurality of second magnets 207 are installed on the outer surface of the circular ring strip 2014. A scraping plate 2016 is installed below the circular ring strip 2014. The circular ring strip 2014 can be connected through the fixing rods 2015, so that the circular ring strip 2014 can drive the scraping plate 2016 to rotate, thereby removing the liquid attached to the temperature control and regulation device 108 and agitating the liquid, facilitating the uniform transfer of temperature of the liquid. The scraping plate 2016 is attached to the temperature control and regulation device 108. The flow disturbing component 201 penetrates through the liquid storage cylinder 104 and the first piston 103. A plurality of second magnets 207 are arranged below the flow disturbing component 201. The second magnets 207 and the first magnet 110 are respectively attached to the inner wall and the outer surface of the liquid storage cylinder 104, and the second magnets 207 and the first magnet 110 are magnetically attracted to each other. By the principle of magnetic attraction between the first magnet 110 and the second magnets 207, the rotation of the second magnets 207 can drive the second magnets 207 to move through magnetic force, and then drive the arc plate to rotate. The bottom of the flow disturbing component 201 is connected with a liquid outlet component 202. The liquid outlet component 202 is connected with a liquid guiding component 206 below. The liquid guiding component 206 is in transmission with two gear rings 203. The gear rings 203 are fixedly connected in the liquid storage cylinder 104 through support rods. The liquid guiding component 206 is connected with a liquid inlet component 205 below. The liquid inlet component 205 is located in the silica gel rubber airbag 204.

[0023] In this embodiment: The motor 2011 drives the rotation of the rotating shaft 2013. The rotating shaft 2013 drives the rotation of the fixed rod 2015 and the circular ring strip 2014, so that the scraper 2016 scrapes off the liquid adhering to the temperature control and adjustment device 108, which is beneficial to the uniform flow of the liquid and the transfer of temperature. Moreover, the circular ring strip 2014 drives the rotation of the second magnet 207. The second magnet 207 drives the rotation of the first magnet 110 and the circular ring plate 1052 through magnetic attraction. The circular ring plate 1052 drives the rotation of the arc welding device 106 through the mounting plate 1054, so that the arc welding device 106 moves to perform welding operations. Secondly, the rotating shaft 2013 drives the rotation of the liquid outlet pipe 2021 and the drainage cylinder 2061, so that the gear 2067 rotates around the sun and meshes with the gear ring 203 for transmission. Furthermore, the gear 2067 drives the self-rotation of the crankshaft 2065. The crankshaft 2065 drives the reciprocating movement of the connecting rod 2063 through the annular frame 2066, so that the second piston 2062 keeps reciprocating. Then, the liquid can be switched and extracted through the two one-way liquid inlet pipes 2053, and at the same time, it is discharged through the one-way liquid inlet pipe 2053, so that the liquid realizes up and down circulating flow, maintaining the internal circulating temperature control of the liquid storage cylinder 104 and the silica gel rubber airbag 204. Thus, the generation of thermal stress concentration in the welding area can be avoided, and at the same time, the deformation of the new energy vehicle flowmeter housing caused by thermal stress concentration can be prevented, meeting the precision manufacturing requirements of new energy vehicle parts.

[0024] Embodiment 2: Refer to Figures 2-3 、 Figures 6-7 and Figures 9-10 A welding device for producing a flowmeter housing includes a welding adjustment assembly 101. The welding adjustment assembly 101 includes a base 1012. A support 1011 is fixedly connected above the base 1012. An electric push rod 1014 is fixedly installed on the support 1011. The support 1011 can support the electric push rod 1014 to ensure the stability of the electric push rod 1014. At the same time, through the telescopic movement of the electric push rod 1014, the arc welding device 106 can smoothly perform welding operations. A limit seat 1013 is fixedly connected above the base 1012. The limit seat 1013 limits the flowmeter housing. The protection assembly 109 includes a cloth cover 1091. The cloth cover 1091 is fixedly connected below the liquid storage cylinder 104. An annular strip 1092 is fixedly connected below the cloth cover 1091. Due to the weight and downward pulling force of the annular strip 1092, the cloth cover 1091 can be smoothly unfolded downward, so that the cloth cover 1091 can smoothly protect the silica gel rubber airbag 204. The elastic component 102 includes a fixed platform 1021. Above the fixed platform 1021, it is fixedly connected to the electric push rod 1014. Below the fixed platform 1021, two sliding rods 1022 and two springs 1023 are fixedly connected. The sliding rods 1022 can be supported by the springs 1023. When the fixed platform 1021 moves downward, the liquid storage cylinder 104 can be driven in advance by the springs 1023. At the same time, when the liquid storage cylinder 104 descends to the maximum limit and generates a blockage with the flowmeter housing, the springs 1023 deform, thereby controlling the movement of the first piston 103, and then the liquid can be pressed into the silicone rubber airbag 204, thus filling the inner cavity of the flowmeter housing. When the fixed platform 1021 moves upward, the springs 1023 can drive the sliding rods 1022 to reset, enabling the first piston 103 to drain the liquid upward, thereby loosening the expansion support of the silicone rubber airbag 204 from the flowmeter housing. The bottom ends of the two sliding rods 1022 are fixedly connected to the first piston 103. The sliding rods 1022 slide in the sliding sleeves 1024. Above the sliding sleeves 1024, they are fixedly connected to the springs 1023. The sliding sleeves 1024 are fixedly installed on the liquid storage cylinder 104. Inside the liquid storage cylinder 104, an internal installation component 107 is fixedly installed. A temperature control adjustment device 108 is installed on the internal installation component 107. The temperature control adjustment device 108 can adjust the temperature of the liquid according to the welding requirements. Below the liquid storage cylinder 104, a plurality of positioning rods are provided. When the liquid storage cylinder 104 moves downward, the positioning rods can be inserted into the flange holes of the flowmeter housing, thereby further positioning the flowmeter housing; The liquid outlet component 202 includes a liquid outlet pipe 2021. A plurality of liquid outlet heads 2022 are provided on the liquid outlet pipe 2021. The top end of the liquid outlet pipe 2021 is fixedly connected to the rotating shaft 2013. The bottom end of the liquid outlet pipe 2021 is communicated with two one-way liquid outlet pipes 2023. The one-way liquid outlet pipes 2023 can achieve one-way liquid outlet, avoiding liquid backflow and enabling the liquid to be discharged upward smoothly; The liquid inlet component 205 includes a liquid inlet pipe 2052. Above the liquid inlet pipe 2052, two one-way liquid inlet pipes 2053 are communicated. The one-way liquid inlet pipes 2053 can perform one-way liquid inlet, avoiding liquid backflow downward. Below the liquid inlet pipe 2052, a plurality of liquid inlet heads 2051 are provided. Through the liquid inlet heads 2051, the operation of extracting liquid can be carried out smoothly; The drainage component 206 includes a drainage cylinder 2061. The upper and lower parts of the drainage cylinder 2061 are respectively communicated with two one-way liquid outlet pipes 2023 and two one-way liquid inlet pipes 2053. A second piston 2062 is arranged in the drainage cylinder 2061. One side of the second piston 2062 is fixedly connected with a connecting rod 2063. The connecting rod 2063 passes through the drainage cylinder 2061 and is fixedly connected with an annular frame 2066. The part of the connecting rod 2063 passing through the drainage cylinder 2061 can further increase the sealing structure, thereby increasing the sealing performance. A crankshaft 2065 is arranged in the annular frame 2066. The crankshaft 2065 is rotatably installed on two fixed bars 2064 through two bearings respectively. The crankshaft 2065 can stably perform a rotational motion through the bearings, and the crankshaft 2065 can slide in the annular frame 2066, so as to drive the annular frame 2066 to smoothly perform a reciprocating motion. The two fixed bars 2064 are fixedly connected to the drainage cylinder 2061. Both ends of the crankshaft 2065 are fixedly connected with gears 2067. The gears 2067 are meshed with a toothed ring 203. Through the revolution of the gears 2067, they can be meshed and driven with the toothed ring 203, so that the gears 2067 can drive the crankshaft 2065 to achieve self-rotation, and thus the reciprocating motion of the first piston 103 can be used to achieve the drainage operation.

[0025] In this embodiment: By pushing down the elastic component 102 and the liquid storage cylinder 104 with the electric push rod 1014, the silica gel rubber airbag 204 enters the flowmeter housing, and by continuously pushing down, a blocking force is generated between the liquid storage cylinder 104 and the flowmeter housing. At this time, the spring 1023 deforms under force, and then the sliding rod 1022 drives the first piston 103 to move downward, pressing the liquid into the silica gel rubber airbag 204. At this time, the silica gel rubber airbag 204 expands to fill the flowmeter housing, and the cloth cover 1091 closes the port of the flowmeter housing, which can effectively prevent welding slag from entering. Secondly, by driving the liquid storage cylinder 104 to retract upward with the electric push rod 1014, the silica gel rubber airbag 204 is pulled out of the flowmeter housing upward, and the cloth cover 1091 automatically unfolds downward to protect the silica gel rubber airbag 204, avoiding adhesion of impurities and causing damage to the inside of the flowmeter housing during the next use.

[0026] Example 3: Refer to Figures 2-8 , a welding device for producing a flowmeter housing, including a welding mechanism 100. The welding mechanism 100 includes a welding adjustment component 101. One end of the welding adjustment component 101 is connected with an elastic component 102. The elastic component 102 passes through the liquid storage cylinder 104 and is connected with the first piston 103. The first piston 103 is arranged in the liquid storage cylinder 104. A protection component 109 and a silica gel rubber airbag 204 are arranged below the liquid storage cylinder 104. A steering component 105 is arranged on the liquid storage cylinder 104. A plurality of first magnets 110 are arranged in the steering component 105. An arc welding device 106 is arranged on the steering component 105; The liquid circulation mechanism 200 includes a flow disturbance component 201 which penetrates through the liquid storage cylinder 104 and the first piston 103. A plurality of second magnets 207 are arranged below the flow disturbance component 201. The second magnets 207 and the first magnet 110 are respectively attached to the inner wall and the outer surface of the liquid storage cylinder 104, and the second magnets 207 and the first magnet 110 attract each other magnetically. The bottom of the flow disturbance component 201 is connected to a liquid outlet component 202, and the liquid outlet component 202 is connected to a drainage component 206 below. The drainage component 206 is in transmission with two toothed rings 203, and the toothed rings 203 are fixedly connected to the liquid storage cylinder 104 through support rods. The drainage component 206 is connected to a liquid inlet component 205 below, and the liquid inlet component 205 is located in the silicone rubber airbag 204.

[0027] In this embodiment: The elastic component 102 and the liquid storage cylinder 104 are driven to move downward by the welding adjustment component 101, so that the silicone rubber airbag 204 enters the flowmeter housing. When the liquid storage cylinder 104 drops to the maximum limit, at this time, the first piston 103 can be directly pushed to move by the elastic component 102, and then the liquid can be pressurized into the silicone rubber airbag 204. The silicone rubber airbag 204 expands to fill the inner cavity of the flowmeter housing, so as to provide an internal support effect for the flowmeter housing. At this time, the second magnet 207 is driven to rotate by the flow disturbance component 201, and the magnetic attraction between the second magnet 207 and the first magnet 110 can drive the steering component 105 and the arc welding device 106 to rotate, and then a moving welding operation can be carried out. At the same time, the flow disturbance component 201 drives the drainage component 206 to be in transmission with the toothed ring 203, so that the liquid can circulate and flow, the thermal stress generated in the arc welding area can be avoided, and at the same time, with the internal support of the silicone rubber airbag 204, the arc welding effect can be effectively guaranteed, the arc welding quality can be improved, and the key technical support for the safety and reliability of new energy vehicles is provided.

[0028] A method for using a welding device for producing a flowmeter housing includes the following steps: S1. When welding the flowmeter housing, the flowmeter housing is limited on the limit seat 1013, and the electric push rod 1014 is controlled to extend, so that the elastic component 102 drives the liquid storage cylinder 104 to move downward, so that the arc welding device 106 and the silicone rubber airbag 204 move downward, and the silicone rubber airbag 204 enters the flowmeter housing. At the same time, the annular strip 1092 is limited by the top of the flowmeter housing, so that the cloth cover 1091 contracts; S2. After the positioning rod is inserted into the flowmeter flange hole for positioning, the liquid storage cylinder 104 continues to be pushed downward and is blocked by the flowmeter housing. At this time, the spring 1023 deforms, and the sliding rod 1022 pushes the first piston 103 to move downward, so that the liquid continuously enters the silicone rubber airbag 204, and the silicone rubber airbag 204 expands to fill the flowmeter housing; S3. Then, adjust the welding angle of the arc welding device 106, and control the rotation of the rotating shaft 2013 through the motor 2011. The rotating shaft 2013 drives the fixed rod 2015 and the circular ring strip 2014 to rotate. The circular ring strip 2014 drives the second magnet 207 to rotate. The second magnet 207 drives the first magnet 110 and the circular ring plate 1052 to rotate through magnetic attraction. The circular ring plate 1052 drives the arc welding device 106 to rotate through the mounting plate 1054 for welding processing; S4. During the rotation of the rotating shaft 2013, it also drives the liquid inlet assembly 205 and the liquid drainage assembly 206 to rotate, causing the gear 2067 to revolve and mesh with the gear ring 203 for transmission, so that the gear 2067 drives the crankshaft 2065 to rotate. The crankshaft 2065 drives the connecting rod 2063 to reciprocate through the annular frame 2066, causing the connecting rod 2063 to drive the second piston 2062 to reciprocate. The second piston 2062 extracts the bottom liquid through the liquid inlet head 2051, and the first piston 103 switches the liquid inlet through two one-way liquid inlet pipes 2053, and simultaneously conducts one-way liquid infusion through the one-way liquid outlet pipe 2023, so that the liquid is discharged to the temperature control and regulation device 108 area through the liquid outlet head 2022. The temperature control and regulation device 108 adjusts the liquid temperature, and the liquid is transported from top to bottom to achieve liquid circulation, avoiding heat stress concentration at the welding position; S5. After welding, the electric push rod 1014 retracts upward, causing the spring 1023 to first drive the sliding rod 1022 and the first piston 103 to reset upward, causing the silica gel rubber airbag 204 to flow back upward. Then, the liquid storage cylinder 104 resets upward in sequence. When the silica gel rubber airbag 204 disengages from the flowmeter housing, the cloth cover 1091 unfolds downward to protect the silica gel rubber airbag 204. Then, take out the welded flowmeter housing, and then perform the next round of welding operation.

[0029] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent replacements or changes should be covered within the protection scope of the present invention.

Claims

1. A welding device for producing a flow meter housing, comprising a welding mechanism, characterized in that: A liquid circulation mechanism is provided on the welding mechanism; The welding mechanism comprises a welding adjustment component, one end of which is connected to an elastic component, the elastic component passes through a liquid storage cylinder and is connected to a first piston, the first piston is arranged in the liquid storage cylinder, a protective component and a silicone rubber airbag are arranged below the liquid storage cylinder, a steering component is arranged on the liquid storage cylinder, a plurality of first magnets are arranged in the steering component, and an arc welding device is arranged on the steering component; The liquid circulation mechanism includes a spoiler component, which runs through the liquid storage cylinder and the first piston. A plurality of second magnets are arranged below the spoiler component. The second magnets and the first magnets are respectively attached to the inner wall and the outer surface of the liquid storage cylinder, and the second magnets are magnetically attracted to the first magnets. The bottom of the spoiler component is connected to a liquid outlet component, and a drainage component is connected below the liquid outlet component. The drainage component is transmitted to two gear rings, and the gear rings are fixedly connected to the liquid storage cylinder through support rods. A liquid inlet component is connected below the drainage component, and the liquid inlet component is located in a silicone rubber airbag.

2. A welding device for producing a flow meter housing according to claim 1, characterized in that: An inner mounting piece is fixedly installed inside the liquid storage cylinder, a temperature control and regulating device is installed on the inner mounting piece, and a plurality of positioning rods are arranged below the liquid storage cylinder.

3. A welding device for producing a flow meter housing according to claim 2, characterized in that: The welding adjustment assembly comprises a base, a bracket is fixedly connected to the top of the base, and an electric push rod is fixedly installed on the bracket; A limit seat is fixedly connected above the base, and the limit seat limits the flow meter housing.

4. A welding device for producing a flow meter housing according to claim 3, characterized in that: The protection component comprises a cloth cover which is fixedly connected to the bottom of the liquid storage cylinder, and a ring strip is fixedly connected to the bottom of the cloth cover.

5. A welding device for producing a flow meter housing according to claim 4, characterized in that: The elastic component includes a fixed platform, the upper part of the fixed platform is fixedly connected to the electric push rod, the lower part of the fixed platform is fixedly connected to two sliding rods and two springs, the bottom ends of the two sliding rods are fixedly connected to the first piston, the sliding rods slide in the sliding sleeve, the upper part of the sliding sleeve is fixedly connected to the spring, and the sliding sleeve is fixedly installed on the liquid storage cylinder.

6. A welding device for producing a flow meter housing according to claim 5, characterized in that: The steering assembly includes two guide rails, which are fixedly installed on the surface of the liquid storage cylinder. A slide rail is slidably connected to the guide rail. A circular ring plate is fixedly connected between the two slide rails. The inside of the circular ring plate is fixedly connected to a plurality of first magnets. A mounting plate is fixedly connected to one side of the circular ring plate, and an arc welding device is installed on the mounting plate.

7. A welding device for producing a flow meter housing according to claim 6, characterized in that: The spoiler assembly includes a frame, which is fixedly connected to the top of the liquid storage cylinder, and a motor is fixedly installed on the frame. The output shaft of the motor is fixedly connected to a rotating shaft, and the rotating shaft is rotatably installed on the liquid storage cylinder and the first piston through two bearings. A plurality of fixed rods are fixedly connected to the outside of the rotating shaft, and one end of the plurality of fixed rods is fixedly connected to the same circular ring bar, and a plurality of second magnets are installed on the surface of the circular ring bar, and a scraper is installed below the circular ring bar, and the scraper is attached to the temperature control and adjustment device.

8. A welding device for producing a flow meter housing according to claim 7, characterized in that: The liquid outlet assembly includes a liquid outlet pipe, on which a plurality of liquid outlet heads are arranged, the top end of the liquid outlet pipe is fixedly connected to the rotating shaft, and the bottom end of the liquid outlet pipe is connected to two one-way liquid outlet pipes; The liquid inlet assembly comprises a liquid inlet pipe, the upper part of which is connected with two one-way liquid inlet pipes, and the lower part of which is provided with a plurality of liquid inlet heads.

9. A welding device for producing a flow meter housing according to claim 8, characterized in that: The drainage assembly includes a drainage tube, the top and bottom of the drainage tube are respectively connected to two one-way liquid outlet pipes and two one-way liquid inlet pipes, a second piston is arranged in the drainage tube, a connecting rod is fixedly connected to one side of the second piston, the connecting rod passes through the drainage tube and is fixedly connected to the annular frame, a crankshaft is arranged in the annular frame, the crankshaft is rotatably mounted on two fixing bars through two bearings, the two fixing bars are fixedly connected to the drainage tube, both ends of the crankshaft are fixedly connected to gears, and the gears are meshed with the gear rings.

10. The method for using the welding equipment for producing a flow meter housing according to claim 9, characterized in that: The following steps are involved: S1. When welding the flow meter housing, limit the flow meter housing on the limit seat, and control the electric push rod to extend, so that the elastic component drives the liquid storage cylinder to move downward, so that the arc welding device and the silicone rubber airbag move downward, and the silicone rubber airbag enters the flow meter housing. At the same time, the annular strip passes through the top limit of the flow meter housing to shrink the cloth cover; S2. After the positioning rod is inserted into the flange hole of the flow meter and positioned, the liquid storage cylinder continues to be pushed down and is blocked by the flow meter housing. At this time, the spring is deformed, and the slide rod pushes the first piston downward, so that the liquid continues to enter the silicone rubber airbag, and the silicone rubber airbag expands and fills the flow meter housing; S3, then adjust the welding angle of the arc welding device, and control the rotation of the shaft through the motor, the shaft drives the fixed rod and the circular ring bar to rotate, the circular ring bar drives the second magnet to rotate, the second magnet drives the first magnet and the circular ring plate to rotate through magnetic attraction, and the circular ring plate drives the arc welding device to rotate through the mounting plate to perform welding processing; S4. The rotating shaft also drives the liquid inlet assembly and the drainage assembly to rotate, so that the gear revolves and meshes with the gear ring, so that the gear drives the crankshaft to rotate, and the crankshaft drives the connecting rod to reciprocate through the annular frame, so that the connecting rod drives the second piston to reciprocate, and the second piston extracts the bottom liquid through the liquid inlet head, and the first piston switches the liquid inlet through two one-way liquid inlet pipes, and at the same time, the one-way liquid outlet pipe is used for one-way liquid infusion, so that the liquid is discharged to the temperature control device area through the liquid outlet head, so that the temperature control device adjusts the liquid temperature, and the liquid is transported from top to bottom to realize liquid circulation, so as to avoid the concentration of thermal stress at the welding position; S5. After welding, the electric push rod retracts upward, so that the spring first drives the slide rod and the first piston to reset upward, so that the silicone rubber airbag flows back upward, and then the liquid storage cylinder resets upward in turn. When the silicone rubber airbag is separated from the flow meter housing, the cloth cover is unfolded downward to protect the silicone rubber airbag, and then the welded flow meter housing is taken out, and then the next round of welding operation is carried out.

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