Breaker shell branch pipe welding equipment and processing technology

Abstract

The invention discloses circuit breaker shell branch pipe welding equipment and a machining process, and relates to the technical field of welding machining, and the circuit breaker shell branch pipe welding equipment comprises a welding device and a clamping device; the welding device comprises a movable mechanism and a welding mechanism; the movable mechanism comprises a fixed frame, a sliding table, a first driving piece, a movable frame and a second driving piece; the clamping device comprises a clamping mechanism; the clamping mechanism comprises a seat body, a rotating frame, a third driving piece, two movable seats, two clamping assemblies and a plurality of fourth driving pieces. A circuit breaker shell machining process comprises the following steps that S1, a main pipe and a branch pipe are machined and formed; s2, the branch pipe and the outer side of the main pipe are preliminarily welded and fixed; s3, the main pipe is clamped and positioned on the clamping device; and S4, the welding device is controlled to complete inner side welding. The welding fixing efficiency and effect of the branch pipe and the main pipe can be effectively improved, and therefore the welding machining quality is effectively improved.

Description

Technical Field

[0001] This application relates to the technical field of welding processing, and in particular to a welding equipment and processing technology for a circuit breaker housing branch pipe. Background Technology

[0002] Ultra-high voltage circuit breakers are the most complex and important electrical equipment in high-voltage equipment. They are high-voltage circuit breakers with a rated voltage of over 800 kV and a short-time withstand voltage of 1650 kV and above. They have dual functions of control and protection and are mainly used in ultra-high voltage substations, power plants, switching stations, transmission lines and power lines.

[0003] Among them, the casing of the UHV circuit breaker is a core component that determines the safety, reliability and performance of the UHV circuit breaker and even the entire UHV transmission system. It is usually formed by welding and requires high precision in its processing.

[0004] The casing of an ultra-high voltage circuit breaker typically consists of a main pipe and multiple branch pipes, which are distributed symmetrically on both sides of the main pipe. During the welding process, workers need to weld the branch pipes to the main pipe, and to ensure the strength of the weld, welding is usually required on both the inner and outer sides. Due to the large size of the casing of ultra-high voltage circuit breakers, the welding process is difficult and involves a large amount of work, and the efficiency and effectiveness of manual welding are relatively limited. Summary of the Invention

[0005] This application provides a welding equipment and processing technology for branch pipes of circuit breaker housings, which can effectively improve the efficiency and effect of welding and fixing branch pipes to main pipes, thereby effectively improving the quality of welding processing of UHV circuit breaker housings.

[0006] On the one hand, this application provides a circuit breaker housing branch pipe welding device, which adopts the following technical solution: A circuit breaker housing branch pipe welding equipment includes a welding device and a clamping device, wherein the welding device is disposed on one side of the clamping device; The welding device includes a movable mechanism and a welding mechanism; The movable mechanism includes a fixed frame, a sliding table, a first driving member, a movable frame, and a second driving member; the fixed frame is vertically fixed, the sliding table is slidably disposed on the fixed frame in the vertical direction, and the first driving member is used to drive the sliding table to slide; the movable frame is movably disposed on the sliding table in the horizontal direction, and the second driving member is used to drive the movable frame to move; the welding mechanism includes a welding torch, and the welding torch is disposed at one end of the movable frame near the clamping device; The clamping device includes a clamping mechanism for clamping the housing; The clamping mechanism includes a base, a rotating frame, a third driving member, two movable seats, two clamping assemblies, and several fourth driving members. The rotating frame is rotatably disposed on the side of the base near the welding device, and its rotation axis is parallel to the movement direction of the movable frame. The third driving member is used to drive the movable frame. The movable seats are movably disposed on the rotating frame, and their movement direction is parallel to the length direction of the rotating frame. The fourth driving members are used to drive the movable seats to move. The two clamping assemblies correspond one-to-one with the two movable seats, and the clamping assemblies are disposed on the corresponding movable seats. The clamping assembly includes two pads and a tensioner; the pads are disposed on the side of the movable seat near the welding device, and are used to abut against the side of the main pipe near the clamping mechanism; the tensioner is disposed on the movable seat and is used to surround the main pipe and drive the main pipe to keep it abutting against the two pads.

[0007] By adopting the above technical solution, after the shell is clamped and positioned at both ends of the main pipe by two clamping components, the shell can be positioned as required by controlling the movement of the movable seat and the rotation of the rotating frame. Then, the welding device is controlled by the operator to place the welding point of the welding gun in the gap between the branch pipe and the main pipe, and welding can begin. In this process, the welding accuracy is high and the speed is fast, which can effectively improve the efficiency and effect of welding and fixing the branch pipe and the main pipe, thereby effectively improving the welding quality of the shell of the UHV circuit breaker.

[0008] Optionally, the welding mechanism further includes an adjustment component; the adjustment component is disposed at one end of the movable frame near the clamping device, the welding torch is detachably connected to the adjustment component, and the adjustment component is used to adjust the position of the welding torch.

[0009] By adopting the above technical solution, workers can easily make fine adjustments to the welding point of the welding torch, thereby meeting more precise welding processing requirements and further improving the welding effect.

[0010] Optionally, the welding device and the clamping device have a clearance groove for the rotating frame to rotate in and out.

[0011] By adopting the above technical solution, large-sized shells can be easily clamped on the clamping device, and the clamping device can easily adjust the position of the large-sized shells according to the requirements.

[0012] Optionally, the clamping device further includes an auxiliary mechanism for assisting the clamping mechanism in clamping the housing; The auxiliary mechanism includes a lifting platform; the lifting platform is disposed in the clearance groove, and its top is used to allow the housing to be placed vertically, and it is used to drive the housing to move in the vertical direction; when the rotating frame rotates to its length direction and is vertical, it is located above the lifting platform and aligned with the lifting platform along its length direction.

[0013] By adopting the above technical solution, before the housing is clamped and positioned on the clamping mechanism, it is first placed on the lifting platform. Then, the lifting platform is raised and lowered, the rotating frame is rotated, and the movable seat is moved so that the housing can be clamped and positioned by the two clamping components. This makes the process of clamping and positioning the housing on the clamping mechanism more convenient and faster.

[0014] Optionally, the clamping mechanism further includes a connecting seat and a fifth driving member, and it includes two fourth driving members in total; The connecting seat is movably mounted on the rotating frame, and its direction of movement is parallel to the length direction of the rotating frame. The fifth driving member is used to drive the connecting seat to move. The movable seat is movably connected to the connecting seat, and the two fourth driving members correspond one-to-one with the two movable seats.

[0015] By adopting the above technical solution, the two movable seats move to allow the two clamping components to clamp the two ends of the main tube. The connecting seat moves to control the movement of the clamped and positioned housing relative to the rotating frame so as to facilitate subsequent adjustment of the housing's position. This can effectively improve the flexibility of adjusting the housing's position and meet the clamping requirements of housings of different sizes.

[0016] Optionally, the tensioner includes a tensioning band, a tensioning wheel, a sixth drive member, and a seventh drive member; The outer side of the tensioning wheel engages with the inner side of the tensioning band. The sixth driving member is used to drive the tensioning wheel to move in a direction parallel to the rotation axis of the rotating frame, and the seventh driving member is used to drive the tensioning wheel to rotate. When the tension band wraps tightly around the main pipe, the rotation of the tension wheel drives the tension band to rotate the main pipe.

[0017] By adopting the above technical solution, the tensioner can not only clamp and position the housing, but also control the housing to rotate around the axis of the main pipe to adjust its position, thereby further meeting the welding position requirements of more housings.

[0018] Optionally, the side of the pad that abuts against the main pipe is provided with a plurality of rollers, and the rotation axis of the rollers is parallel to the rotation axis of the tensioning wheel.

[0019] By adopting the above technical solution, the frictional resistance between the main pipe and the pad can be reduced, thereby facilitating the rotation of the tensioning wheel to drive the tensioning belt to rotate the main pipe for position adjustment.

[0020] Optionally, the auxiliary mechanism further includes a positioning component for determining the clamping position of the housing; The positioning component includes a light-emitting element and a projection plate; the light-emitting element is disposed on the rotating frame, and its position on the rotating frame is aligned with the rotation axis of the rotating frame, and it is used to emit light along the rotation axis of the rotating frame in a direction closer to the welding device; the projection plate is disposed on the movable frame and located on the side of the welding torch away from the clamping device, and it is disposed perpendicular to the light-emitting direction of the light-emitting element.

[0021] By adopting the above technical solution, the staff can determine whether the axis of the branch pipe to be welded coincides with the rotation axis of the rotating frame by observing the shape of the light and shadow emitted by the light-emitting component on the projection board. This makes it convenient for the staff to adjust the position of the shell to the above state. During the subsequent operation of the welding device, the rotation of the rotating frame can complete the welding and fixing of the inner side of the branch pipe. At the same time, the projection board can block the bright light during the welding process during the operation of the welding device, thereby effectively protecting the eyes of the surrounding staff.

[0022] Optionally, the positioning component further includes a light-sensing module; the light-sensing module is disposed on the side of the projection plate near the light-emitting element, and is signal-connected to the fifth driving element and the two tensioners, and is used to drive the axis of the branch pipe to coincide with the rotation axis of the rotating frame.

[0023] By adopting the above technical solution, the optical sensing module can replace manual judgment to determine whether the housing position adjustment is in place, thereby further improving the accuracy of housing position adjustment, and thus further improving the efficiency and effect of subsequent welding.

[0024] On the other hand, this application provides a processing technology for the branch pipe of a circuit breaker housing, which adopts the following technical solution: A circuit breaker housing processing technology, based on the aforementioned circuit breaker housing branch pipe welding equipment, includes the following steps: S1. The main pipe and branch pipe are processed and formed; S2. The branch pipe is initially welded and fixed to the outer side of the main pipe; S3. The main tube is clamped and positioned on the clamping device; S4. Control the welding device to complete the inner welding.

[0025] In summary, this application includes at least one of the following beneficial effects: 1. The position of the casing can be adjusted according to welding requirements, and the welding device can be used to weld the inner side of the branch pipe in accordance with the position of the casing, thereby effectively improving the efficiency and effect of welding and fixing the branch pipe and the main pipe, and thus effectively improving the quality of welding processing of the casing of the UHV circuit breaker. 2. It can be applied to housings of different sizes, and can also meet the position adjustment requirements of housings of different sizes for internal welding; 3. It can effectively improve the positional accuracy of the shell after adjustment, thereby effectively ensuring the efficiency and effect of subsequent welding; 4. The welding process can effectively reduce the probability of bright light affecting surrounding workers. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a circuit breaker housing branch pipe welding equipment on one side of the welding device in Embodiment 1; Figure 2 This is a schematic diagram of the structure of a circuit breaker housing branch pipe welding equipment on one side of the clamping device in Embodiment 1; Figure 3 This is a schematic diagram of the structure of a circuit breaker housing branch pipe welding equipment on one side of the welding device in Embodiment 2; Figure 4 This is a schematic diagram of the structure of a circuit breaker housing branch pipe welding equipment on one side of the clamping device in Embodiment 2; Figure 5 This is a partial structural diagram of the clamping mechanism clamping the housing in Embodiment 2; Figure 6 This is a partial cross-sectional view of the shell during internal welding in Embodiment 2; Figure 7 This is a schematic diagram of the tensioner in Example 2; Figure 8 This is a schematic diagram of the clamping component in Embodiment 2.

[0027] Explanation of reference numerals in the attached drawings: 1. Welding device; 11. Movable mechanism; 111. Fixed frame; 112. Sliding table; 113. First driving component; 114. Movable frame; 115. Second driving component; 12. Welding mechanism; 121. Welding torch; 122. Adjustment assembly; 2. Clamping device; 21. Clamping mechanism; 211. Base; 212. Rotating frame; 213. Third driving component; 214. Movable base; 215. Clamping assembly; 2151. Tensioner; 2152, Pad; 216, Fourth Drive Component; 217, Connecting Seat; 218, Fifth Drive Component; 22, Auxiliary Mechanism; 221, Lifting Platform; 222, Positioning Component; 2221, Light-emitting Component; 2222, Projection Panel; 2223, Light Sensing Module; 3, Housing; 31, Main Pipe; 32, Branch Pipe; 101, Tensioning Belt; 102, Tensioning Roller; 103, Sixth Drive Component; 104, Seventh Drive Component; 105, Roller; 106, Relief Groove. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0029] Example 1: Reference Figure 1 and Figure 2 This application discloses a circuit breaker housing branch pipe welding device, used to assist in the inner welding and fixing of the branch pipe 32 and the main pipe 31 of the circuit breaker housing 3. Before use, the branch pipe 32 and the main pipe 31 need to be pre-fixed by tack welding on the outer side. In this embodiment, it is preferred that both the main pipe 31 and the branch pipe 32 are round pipes, and the radial dimension of the main pipe 31 is larger than the radial dimension of the branch pipe 32; and preferably, two branch pipes 32 need to be welded and fixed on the main pipe 31, and the two branch pipes 32 are symmetrically distributed on both sides of the main pipe 31.

[0030] The circuit breaker housing branch pipe welding equipment includes a welding device 1 for completing the inner welding and a clamping device 2 for positioning the housing 3 and adjusting the position of the housing 3. In this embodiment, preferably both the welding device 1 and the clamping device 2 are installed on the ground, and there is a clearance groove 106 between the two on the ground to facilitate the positioning and position adjustment of the housing 3 on the clamping device 2; in practical applications, in order to facilitate the entry and exit of the clearance groove 106, a step or other structure is usually provided on one side of the clearance groove 106.

[0031] The welding apparatus 1 includes an active mechanism 11 for initial adjustment of the welding positioning and a welding mechanism 12 for performing welding and allowing the operator to finely adjust the welding point position.

[0032] The movable mechanism 11 includes a fixed frame 111, a sliding table 112, a first driving component 113, a movable frame 114, and a second driving component 115.

[0033] The fixed frame 111 is fixedly installed on the ground in a vertical position along its length. The sliding table 112 is slidably installed on the fixed frame 111 along the vertical direction. The first driving member 113 is fixedly installed on the top of the fixed frame 111 and is used to drive the sliding table 112 to slide relative to the fixed frame 111. In this embodiment, the first driving member 113 is preferably a servo motor, and preferably the first driving member 113 drives the sliding table 112 to slide relative to the fixed frame 111 through chain drive. Since servo motors and chain drives are common existing technologies, they will not be described in detail here, and they are only briefly shown in the accompanying drawings.

[0034] The movable frame 114 is movably mounted on the sliding table 112 in a horizontal position along its length, with its direction of movement parallel to its own length. The welding device 1 is aligned with the clamping device 2 along its direction of movement. The second driving member 115 is fixedly mounted on the sliding table 112 and is used to drive the movable frame 114 to move relative to the sliding table 112. In this embodiment, the second driving member 115 is preferably a servo motor, and preferably the second driving member 115 drives the movable frame 114 to move by rotating the rollers 105. Since the servo motor and the rollers 105 rotating to drive the movable frame 114 to move (the movable frame 114 is positioned by being clamped and positioned by four rollers 105, and the four second driving members 115 synchronously drive the corresponding rollers 105 to rotate, thus driving the movable frame 114 to move) are common existing technologies, they will not be described in detail here, and only a brief representation is given in the accompanying drawings.

[0035] The welding mechanism 12 is installed on one end of the movable frame 114 near the clamping device 2. It includes a welding torch 121 for performing welding work and an adjustment component 122 for the operator to make fine adjustments to the welding point of the welding torch 121.

[0036] The adjustment component 122 is fixedly installed at the end of the movable frame 114, and the welding torch 121 is installed on the adjustment component 122. The adjustment component 122 is used to drive the welding torch 121 to make fine position adjustments relative to the movable frame 114. In this embodiment, the adjustment component 122 preferably includes three servo cylinders, which are used to control the welding point of the welding torch 121 to adjust its position along the X-axis, Y-axis, and Z-axis, respectively. The X-axis is parallel to the length direction of the movable frame 114, the Y-axis is horizontal and perpendicular to the length direction of the movable frame 114, and the Z-axis is vertical. Since the welding torch 121 and the adjustment component 122 with the above functions are common prior art, they will not be described in detail here, and they are only briefly shown in the accompanying drawings. In practical applications, to facilitate the operation of the adjustment component 122 while observing the welding point of the welding torch 121, it is preferable that the adjustment component 122 has a working platform on the ground below for the operator to position.

[0037] The clamping device 2 includes a clamping mechanism 21 for clamping the housing 3, and the clamping mechanism 21 includes a base 211, a rotating frame 212, a third driving member 213, two movable seats 214, two clamping assemblies 215 and several fourth driving members 216.

[0038] The base 211 is fixedly installed on the ground; the rotating frame 212 is a rectangular plate structure, with one side of its thickness direction rotatably connected to the base 211 and installed on the side of the base 211 close to the welding device 1. Its rotation axis is parallel to its own thickness direction and parallel to the movement direction of the movable frame 114, and its rotation axis is centered relative to its own length and width directions; the third driving member 213 is fixedly installed on the side of the base 211 away from the welding device 1, and is used to drive the rotating frame 212 to rotate relative to the base 211. In this embodiment, the third driving member 213 is preferably a servo motor.

[0039] The movable seat 214 is movably mounted on the rotating frame 212 and located on the side of the rotating frame 212 closest to the welding device 1, and its direction of movement is parallel to the length direction of the rotating frame 212; the two movable seats 214 are respectively close to the two ends of the rotating frame 212 in the length direction, and the two movable seats 214 are symmetrically distributed on the rotating frame 212; the fourth driving member 216 is fixedly mounted on one end of the rotating member in the length direction, and it is used to drive the two movable seats 214 to move synchronously and in opposite directions relative to the rotating frame 212. In this embodiment, the fourth driving member 216 is preferably a servo motor, and preferably the fourth driving member 216 achieves the above effect through a lead screw with reversed threads at both ends; since the lead screw with reversed threads at both ends is a common prior art, it will not be described in detail here, and it is only briefly shown in the accompanying drawings.

[0040] Two clamping components 215 correspond one-to-one with two movable seats 214, and the clamping components 215 are installed on the corresponding movable seats 214; the two clamping components 215 are used to clamp the two ends of the main pipe 31 in the length direction, and the clamping components 215 include two pads 2152 and tensioners 2151.

[0041] The pad 2152 has a wedge-shaped structure, and its wedge-shaped surface is used to abut against the outer side of the main pipe 31 to reduce the damage to the main pipe 31 when it is clamped by the clamping assembly 215. The pad 2152 is located on the side of the movable seat 214 away from the rotating frame 212. The two pads 2152 are respectively distributed at both ends of the movable seat 214 along the width direction of the rotating frame 212, and the wedge-shaped surfaces of the two pads 2152 face each other. In this embodiment, in order to improve the adaptability of the clamping assembly 215 to the main pipe 31 with different radial dimensions, it is preferable that the distance between the two pads 2152 can be adjusted (by manually turning the handwheel to control the synchronous reverse movement of the two pads 2152 by means of screw drive). Since the structure with the above function is a common prior art, it will not be described in detail here, and it is only briefly shown in the figure.

[0042] The tensioner 2151 is mounted on the movable seat 214, with its two ends connected to the two ends of the movable seat 214 along the width direction of the rotating seat. It is used to wrap around the outside of the main pipe 31, and its winding length is adjustable. In this embodiment, the tensioner 2151 is preferably a hand-cranked hoist tensioner 2151, which achieves tension by contacting the outside of the main pipe 31 with a chain. Since the hand-cranked hoist tensioner 2151 is a common prior art, it will not be described in detail here, and it is only briefly shown in the accompanying drawings.

[0043] During the clamping process of clamping the end of the main pipe 31, the tensioner 2151 is first adjusted to loosen until the end of the main pipe 31 can pass through, and then the tensioner 2151 is adjusted to tighten, so that the end of the main pipe 31 is clamped and positioned under the action of tensioner 2151 while simultaneously abutting against the two pads 2152.

[0044] During the clamping process of the clamping device 2 clamping the housing 3, the clearance groove 106 can provide more space for the rotation of the rotating frame 212 and the clamping of the housing 3, and when the rotating frame 212 rotates to the position where its length direction is vertical, its bottom is located in the clearance groove 106.

[0045] The implementation principle of the circuit breaker housing branch pipe welding equipment in this application is as follows: Move the housing 3 closer to the clamping device 2. After controlling the two movable seats 214 to move relative to the rotating frame 212 to a suitable position according to the length of the main pipe 31, pass both ends of the main pipe 31 through the two loosened tensioners 2151 respectively. Then, control the tensioners 2151 to tighten so that the outer side of the main pipe 31 abuts against the pad 2152, thus completing the clamping and positioning of the housing 3 on the rotating frame 212. Then, control the rotation of the rotating frame 212 to adjust the position of the housing 3, so that the branch pipe 32 to be welded on the inner side is positioned relative to the welding mechanism 12. The welding torch 121 is positioned appropriately. Then, the sliding table 112 is controlled to slide and the movable frame 114 is moved so that the welding torch 121 enters the inner side of the branch pipe 32 and is close to the welding point. The welding point of the welding torch 121 is then finely adjusted by the adjusting component 122 to make the welding point more precise. During the welding process, the operator observes the welding situation while controlling the rotating frame 212 to rotate. At the same time, the welding point is adjusted by the adjusting component 122 according to the changes in the welding point and the welding position requirements until the inner welding work is completed.

[0046] Example 2: Reference Figure 3 and Figure 4 The difference between this embodiment and embodiment 1 lies in the clamping device 2.

[0047] Reference Figure 3 and Figure 5 The clamping mechanism 21 also includes a connecting seat 217 and a fifth driving member 218. Both movable seats 214 are movably mounted on the connecting seat 217, and a total of two fourth driving members 216 are included, each corresponding to one of the two movable seats 214.

[0048] Reference Figure 5 and Figure 6 The connecting seat 217 has a rectangular plate-like structure and is movably mounted on the side of the rotating frame 212 near the welding device 1. Its direction of movement is parallel to its own length and parallel to the length direction of the rotating frame 212. The fifth driving member 218 is fixedly mounted on one end of the rotating frame 212 along its length and is used to drive the connecting seat 217 to move relative to the rotating frame 212. In this embodiment, the fifth driving member 218 is preferably a servo motor, and preferably, the fifth driving member 218 drives the connecting seat 217 to move through a lead screw drive.

[0049] The movable seat 214 is movably mounted on the side of the connecting seat 217 near the welding device 1, and its direction of movement is parallel to the length direction of the movable seat 214. The two movable seats 214 are respectively located near the two ends of the connecting seat 217 along its length. Two fourth driving members 216 are respectively fixedly mounted at the two ends of the connecting seat 217 along its length, and are used to drive the corresponding movable seat 214 to move relative to the connecting seat 217. In this embodiment, the fourth driving member 216 is preferably a servo motor, and preferably, the fourth driving member 216 drives the movable seat 214 to move via a lead screw drive.

[0050] At this time, controlling the two movable seats 214 to move relative to the connecting seat 217 can meet the clamping requirements of the main pipe 31 of different lengths and sizes, while controlling the connecting seat 217 to move can facilitate the clamping assembly 215 to be in a position that is convenient for clamping the main pipe 31 and facilitate the movement and adjustment of the main pipe 31 after clamping and positioning.

[0051] Reference Figure 5 and Figure 7 The tensioner 2151 includes a tensioning band 101, a tensioning wheel 102, a sixth drive member 103, and a seventh drive member 104.

[0052] The tension band 101 is an elastic and flexible strip structure, part of which extends into the interior of the movable seat 214, and the portion outside the movable seat 214 forms a ring structure through which the end of the main tube 31 passes. The tension wheel 102 is cylindrical in shape and is movably mounted inside the movable seat 214 with its axis parallel to the direction of movement of the movable seat 214, and its outer side contacts the inner side of the portion of the tension band 101 inside the movable seat 214. In this embodiment, it is preferable that the inner side of the tension band 101 engages with the outer side of the tension wheel 102, and preferably, when the inner side of the tension band 101 contacts the outer side of the main tube 31, the relative position can be fixed by friction.

[0053] The sixth driving member 103 is fixedly installed inside the movable seat 214, and is used to drive the tensioning wheel 102 to move relative to the movable seat 214 in a direction parallel to the rotation axis of the rotating frame 212. In this embodiment, the sixth driving member 103 is preferably a servo cylinder; since servo cylinders are common prior art, they will not be described in detail here, and are only briefly shown in the accompanying drawings.

[0054] The seventh driving member 104 is fixedly installed at the end of the piston rod of the sixth driving member 103. It is used to drive the tension wheel 102 to rotate relative to the movable seat 214, and its rotation axis coincides with its own axis. In this embodiment, the seventh driving member 104 is preferably a servo motor; when the tension wheel 102 rotates relative to the movable seat 214, it can drive the tension belt 101 to move accordingly, thereby causing the branch pipe 32 wound by the tension belt 101 to have a tendency to rotate about its own axis.

[0055] Reference Figure 5 and Figure 8 Furthermore, a plurality of rollers 105 are rotatably mounted on the wedge-shaped surface of the preferred pad 2152. When the branch pipe 32 is clamped and positioned, it will contact the plurality of rollers 105 on the pad 2152, and the rotation axis of the rollers 105 is parallel to the rotation axis of the tensioning wheel 102.

[0056] Reference Figure 3 and Figure 5 The clamping device 2 also includes an auxiliary mechanism 22 for assisting the clamping and positioning of the housing 3 and improving its positioning accuracy. The auxiliary mechanism 22 includes a lifting platform 221 for facilitating the clamping and positioning of the housing 3 by means of two clamping components 215 and a positioning component 222 for improving the clamping and positioning accuracy of the housing 3.

[0057] The lifting platform 221 is installed in the clearance groove 106, and its top allows the housing 3 to be placed vertically with the axis of the main pipe 31 in the same position. The top of the lifting platform 221 also has a groove to facilitate initial positioning of the housing 3 during placement. In this embodiment, the lifting platform 221 is preferably a scissor lift platform, and preferably the rotating frame 212 does not move in or out of the clearance groove 106 during rotation. Since scissor lift platforms are common existing technology, they will not be described in detail here, and are only briefly shown in the accompanying drawings.

[0058] At this time, when the rotating frame 212 rotates to a vertical position along its length, the connecting seat 217 moves downward to its limit position, and the movable seat 214 at the bottom also moves downward to its limit position, the tension band 101 of the tensioner 2151 at the bottom, located outside the movable seat 214, will be located at the top of the lifting platform 221 that has risen to the top, making it easier for the bottom of the main pipe 31 to pass through the tension band 101 at the bottom; then, by controlling the movement of the movable seat 214 at the top, the top of the main pipe 31 can pass through the tension band 101 at the top.

[0059] Reference Figure 5 and Figure 6 The positioning component 222 includes a light-emitting element 2221, a projection plate 2222, and a light-sensing module 2223.

[0060] The light-emitting element 2221 is fixedly installed on the side of the rotating frame 212 near the welding device 1. It is located at the position of the rotation axis of the rotating frame 212 and emits light in the direction of the rotation axis of the rotating frame 212 toward the welding device 1. The projection plate 2222 is a rectangular plate structure. It is fixedly installed on one end of the movable frame 114 near the clamping device 2 in a position perpendicular to the length direction of the movable frame 114, and it is located on the side of the adjustment component 122 away from the clamping device 2. The light-sensing module 2223 is installed on the side of the projection plate 2222 near the clamping device 2, and it is used to sense the light and shadow irradiated by the light-emitting element 2221 onto the projection plate 2222. In this embodiment, it is preferable that the light-emitting element 2221 is installed in an embedded manner on the rotating frame 212 to reduce the probability of positional interference between it and the movable seat 214.

[0061] After the housing 3 is clamped and positioned on the clamping device 2, the light-emitting element 2221 is located on the side of the housing 3 closest to the rotating frame 212. The light emitted by the light-emitting element 2221 will pass through the branch pipe 32 on the other side of the main pipe 31 corresponding to the branch pipe 32 to be welded on the inner side, and then illuminate the projection plate 2222. The light-sensing module 2223 will determine the position of the housing 3 based on its light-sensing area and shape, thereby facilitating the operator to adjust the position of the housing 3 until the axis of the branch pipe 32 to be welded coincides with the rotation axis of the rotating frame 212, thus facilitating the subsequent inner welding operation. In this embodiment, since the light-sensing module 2223 with the above-mentioned functions is common prior art, it will not be described in detail here, and it is only briefly shown in the accompanying drawings.

[0062] Subsequently, during the welding process of the welding device 1 on the inner side of the branch pipe 32, the projection plate 2222 can effectively reduce the impact of the bright light during the welding process on the surrounding workers on the side of the welding mechanism 12 away from the clamping device 2, thereby effectively protecting the eyes of the surrounding workers.

[0063] The implementation principle of the circuit breaker housing branch pipe welding equipment in this application is as follows: After the lifting platform 221 is raised to the top, the rotating frame 212 is rotated to a vertical position along its length, causing the tension strap 101 at the bottom to descend to the top of the lifting platform 221. Then, the housing 3 is placed vertically on top of the lifting platform 221, so that the bottom of the main pipe 31 passes through the tension strap 101 at the bottom. Next, the movable seat 214 at the top is moved so that the top of the main pipe 31 passes through the tension strap 101 at the top. Then, the sixth drive unit 103 is controlled to drive the tension wheel 102 to move and tighten the corresponding tension. The clamping of the housing 3 is completed by the belt 101, and then the connecting seat 217 is controlled to move to drive the housing 3 to move. At the same time, the seventh driving component 104 is controlled to drive the tension wheel 102 to rotate, which drives the tension belt 101 to drive the housing 3 to rotate for position adjustment, until the axis of the inner welding branch pipe 32 coincides with the rotation axis of the rotating frame 212. During the position adjustment of the housing 3, the operator can use the positioning component 222 to assist in judging the position status of the housing 3 during the position adjustment process, thereby effectively improving the position accuracy of the housing 3 after position adjustment and positioning.

[0064] Example 3: Reference Figure 1 and Figure 3 This application discloses a circuit breaker housing processing technology based on a circuit breaker housing branch pipe welding device disclosed in Embodiment 1 or Embodiment 2, including the following steps: S1, main pipe 31 and branch pipe 32 are processed and formed.

[0065] According to the size requirements of the housing 3, the main pipe 31 and the required number of branch pipes 32 are processed respectively.

[0066] S2, branch pipe 32 and main pipe 31 are initially welded and fixed on the outside.

[0067] After determining the welding position by tooling or directly placing the branch pipe 32 on the main pipe 31, the initial welding and fixing is completed by manual external spot welding or full welding.

[0068] S3, the main tube 31 is clamped and positioned on the clamping device 2.

[0069] The housing 3 is clamped and positioned by clamping the main tube 31 onto the clamping device 2 using two clamping components 215.

[0070] S4. Control welding device 1 to complete the inner welding.

[0071] The welding device 1, controlled by the staff, adjusts the welding point according to the welding requirements on the inside, and completes the internal welding and fixing between the branch pipe 32 and the main pipe 31.

[0072] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A welding device for branch pipes of a circuit breaker housing, characterized in that, It includes a welding device (1) and a clamping device (2), wherein the welding device (1) is disposed on one side of the clamping device (2); The welding device (1) includes a movable mechanism (11) and a welding mechanism (12); The movable mechanism (11) includes a fixed frame (111), a sliding table (112), a first driving member (113), a movable frame (114), and a second driving member (115); the fixed frame (111) is vertically fixed, the sliding table (112) is slidably disposed on the fixed frame (111) in the vertical direction, and the first driving member (113) is used to drive the sliding table (112) to slide; the movable frame (114) is movably disposed on the sliding table (112) in the horizontal direction, and the second driving member (115) is used to drive the movable frame (114) to move; the welding mechanism (12) includes a welding torch (121), and the welding torch (121) is disposed at one end of the movable frame (114) near the clamping device (2); The clamping device (2) includes a clamping mechanism (21) for clamping the housing (3); The clamping mechanism (21) includes a base (211), a rotating frame (212), a third driving member (213), two movable seats (214), two clamping assemblies (215), and several fourth driving members (216). The rotating frame (212) is rotatably disposed on the side of the base (211) near the welding device (1), and its rotation axis is parallel to the movement direction of the movable frame (114). The third driving member (213) is used to drive the movable frame (214). The movable seat (214) is movably disposed on the rotating frame (212), and its movement direction is parallel to the length direction of the rotating frame (212). The fourth driving member (216) is used to drive the movable seat (214) to move. The two clamping assemblies (215) correspond one-to-one with the two movable seats (214), and the clamping assemblies (215) are disposed on the corresponding movable seats (214). The clamping assembly (215) includes two pads (2152) and a tensioner (2151); the pads (2152) are disposed on the side of the movable seat (214) near the welding device (1), and are used to abut the main tube (31) near the side of the clamping mechanism (21); the tensioner (2151) is disposed on the movable seat (214), and is used to surround the main tube (31) and drive the main tube (31) to keep it abutting against the two pads (2152).

2. The circuit breaker housing branch pipe welding equipment according to claim 1, characterized in that, The welding mechanism (12) further includes an adjustment component (122); the adjustment component (122) is located at one end of the movable frame (114) near the clamping device (2), the welding torch (121) is detachably connected to the adjustment component (122), and the adjustment component (122) is used to adjust the position of the welding torch (121).

3. The circuit breaker housing branch pipe welding equipment according to claim 1, characterized in that, The welding device (1) and the clamping device (2) have a clearance groove (106) for the rotating frame (212) to rotate in and out.

4. The circuit breaker housing branch pipe welding equipment according to claim 3, characterized in that, The clamping device (2) further includes an auxiliary mechanism (22) for the auxiliary clamping mechanism (21) to clamp the housing (3). The auxiliary mechanism (22) includes a lifting platform (221); the lifting platform (221) is disposed in the relief groove (106), the top of which allows the housing (3) to be placed vertically, and it is used to drive the housing (3) to move in the vertical direction; when the rotating frame (212) rotates to the vertical position in its length direction, it is located above the lifting platform (221) and aligned with the lifting platform (221) in its length direction.

5. The circuit breaker housing branch pipe welding equipment according to claim 4, characterized in that, The clamping mechanism (21) also includes a connecting seat (217) and a fifth driving member (218), and it includes two fourth driving members (216). The connecting seat (217) is movably mounted on the rotating frame (212), and its direction of movement is parallel to the length direction of the rotating frame (212). The fifth driving member (218) is used to drive the connecting seat (217) to move. The movable seat (214) is movably connected to the connecting seat (217), and the two fourth driving members (216) correspond one-to-one with the two movable seats (214).

6. The circuit breaker housing branch pipe welding equipment according to claim 5, characterized in that, The tensioner (2151) includes a tensioning band (101), a tensioning wheel (102), a sixth drive member (103), and a seventh drive member (104). The outer side of the tensioning wheel (102) engages with the inner side of the tensioning band (101), the sixth driving member (103) is used to drive the tensioning wheel (102) to move in a direction parallel to the rotation axis of the rotating frame (212), and the seventh driving member (104) is used to drive the tensioning wheel (102) to rotate. When the tension band (101) wraps around and adheres to the main pipe (31), the tension wheel (102) rotates, causing the tension band (101) to drive the main pipe (31) to rotate.

7. The circuit breaker housing branch pipe welding equipment according to claim 6, characterized in that, The pad (2152) is rotatably equipped with multiple rollers on the side that abuts against the main pipe (31), and the rotation axis of the rollers (105) is parallel to the rotation axis of the tensioning wheel (102).

8. The circuit breaker housing branch pipe welding equipment according to claim 5, characterized in that, The auxiliary mechanism (22) also includes a positioning component (222) for determining the clamping position state of the housing (3). The positioning component (222) includes a light-emitting element (2221) and a projection plate (2222); the light-emitting element (2221) is disposed on the rotating frame (212), and its position on the rotating frame (212) is aligned with the rotation axis of the rotating frame (212), and it is used to emit light along the rotation axis of the rotating frame (212) in a direction closer to the welding device (1); the projection plate (2222) is disposed on the movable frame (114) and located on the side of the welding torch (121) away from the clamping device (2), and it is disposed perpendicular to the light-emitting direction of the light-emitting element (2221).

9. The circuit breaker housing branch pipe welding equipment according to claim 8, characterized in that, The positioning component (222) also includes a light sensing module (2223); the light sensing module (2223) is located on the side of the projection plate (2222) near the light-emitting element (2221), and is signal connected to the fifth driving element (218) and the two tensioners (2151), and is used to drive the axis of the branch pipe (32) to coincide with the rotation axis of the rotating frame (212).

10. A circuit breaker housing processing technology, based on a circuit breaker housing branch pipe welding equipment as described in any one of claims 1-9, characterized in that, Includes the following steps: S1, the main pipe (31) and branch pipe (32) are processed and formed; S2. The branch pipe (32) is initially welded and fixed to the outside of the main pipe (31); S3, the main tube (31) is clamped and positioned on the clamping device (2); S4. Control the welding device (1) to complete the inner welding.

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