A flowmeter cylinder end flange welding device

Abstract

This application relates to a welding device for the end flange of a flow metering cylinder, comprising a base platform. A first positioning mechanism is provided on the base platform, comprising a drive frame fixed to the base platform, a drive wheel fixedly connected to the output end of the drive frame, and a sliding frame slidably connected to the base platform. A drive component for moving the sliding frame is provided on the base platform, and a mating wheel is rotatably connected to the sliding frame. Positioning grooves are formed on the end faces of the drive wheel and the mating wheel that are close to each other. The welding device further comprises a second positioning mechanism, comprising a U-shaped frame located between the drive frame and the sliding frame. Grooves are fixedly connected to both side walls of the U-shaped frame, and multiple limiting blocks are fixedly connected to the two side walls of the grooves that are close to each other. The welding device also includes a welding robot mounted on the base platform, with the welding end of the welding robot located at the U-shaped frame. This application enables operators to weld flanges and cylinders more easily and conveniently.

Description

Technical Field

[0001] This application relates to the field of flow meter cylinder processing devices, and in particular to a flow meter cylinder end flange welding device. Background Technology

[0002] Flanges need to be welded to both ends of the side wall of the flow metering cylinder. The usual method for welding the flanges is as follows: the operator first puts one flange on the cylinder, keeping the flange and the cylinder in the same position, and then uses a welding device to weld this flange to the cylinder. Finally, following the same operation, the other flange is welded to the cylinder. After the flange welding is completed, the welding position is tapped to shake off the weld slag on the cylinder.

[0003] Because the welding process requires operators to manually maintain the position of the flange and the cylinder, and the cylinder needs to be rotated continuously during the welding process, and the two flanges need to be welded in sequence, the operator needs to perform many steps in the flange welding process, making the welding of the flange and the cylinder difficult. Summary of the Invention

[0004] To enable operators to weld flanges and cylinders more easily and conveniently, this application provides a method.

[0005] This application provides a flow metering cylinder end flange welding device with the following technical solution:

[0006] A flow metering cylinder end flange welding device includes a base platform. The base platform is provided with a first positioning mechanism for supporting and positioning the cylinder. The first positioning mechanism includes a drive frame fixed on the base platform. The drive frame has a rotatable shaft-shaped output end. A coaxial drive wheel is fixedly connected to the output end of the drive frame. A sliding frame is also slidably connected to the base platform. The sliding direction of the sliding frame is consistent with the axial direction of the drive wheel. The base platform is provided with a drive component for driving the sliding frame to move. A mating wheel coaxial with the drive wheel is rotatably connected to the sliding frame. An annular positioning groove for the cylinder to be inserted is opened on the end faces of the drive wheel and the mating wheel that are close to each other.

[0007] The welding device also includes a second positioning mechanism for supporting and positioning the flange. The second positioning mechanism includes a U-shaped frame fixed on the base platform. The two side walls of the U-shaped frame are arranged along the width direction of the base platform. The U-shaped frame is located between the drive frame and the sliding frame. Vertically arranged grooves are fixedly connected to the two adjacent side walls of the U-shaped frame. Multiple limiting blocks are fixedly connected to the two adjacent side walls of the grooves. The multiple limiting blocks are arranged along the length direction of the grooves. The distance between two opposite limiting blocks on the grooves is greater than the thickness of the flange.

[0008] The welding apparatus also includes a welding robot mounted on a base platform, with the welding end of the welding robot located at the U-shaped frame.

[0009] Optionally, two crossbars are provided between two opposite sidewalls of the tank. The two crossbars are symmetrically distributed along the length of the tank. Both ends of the crossbars are fixed to the corresponding sidewalls of the tank. A rotating ring is sleeved on the crossbar. The rotating ring and the crossbar can rotate relative to each other. The rotating ring is located between two opposite limiting blocks. The rotating ring can roll with the flange.

[0010] Optionally, the drive wheel is also provided with a fixing component to make the cylinder and the drive wheel fit together more stably.

[0011] Optionally, the drive wheel has a cavity, and the fixing component includes two abutting blocks that are slidably inserted into the end face of the drive wheel near the mating wheel. The two abutting blocks are symmetrically distributed along the circumference of the drive wheel. The drive wheel has strip holes that correspond one-to-one with the abutting blocks. A slider is fixedly connected to the end of the abutting block away from the mating wheel. The slider is located in the cavity and contacts the cavity wall.

[0012] A guide rod is slidably inserted through the slider. The length of the guide rod is set along the sliding direction of the slider. The guide rod is fixed to the cavity wall. A return spring is sleeved on the guide rod. The return spring is located on the side of the slider near the edge of the drive wheel. One end of the return spring is fixed to the cavity wall, and the other end of the return spring is fixed to the slider.

[0013] A fixed plate is fixedly connected to the slider, and an anti-detachment plate is fixedly connected to the end of the guide rod away from the outer wall of the drive wheel. The return spring causes the fixed plate to abut against the anti-detachment plate. At this time, the distance between the ends of the two abutting blocks that are far apart from each other is less than the inner diameter of the cylinder.

[0014] The fixing component also includes a power component that drives the clamping block to move toward the edge of the drive wheel.

[0015] Optionally, the power component includes a drive block that corresponds one-to-one with the abutment block. The drive block is located on the positioning groove, protrudes from the end face of the drive wheel, passes through the end face of the drive wheel, and is slidably inserted into the drive wheel. The sliding direction of the drive block is set along the axial direction of the drive wheel.

[0016] A plug-in rod is fixedly connected to the surface of the drive block inside the cavity. The plug-in rod passes through the end face of the drive wheel near the mating wheel and slides into the drive wheel. A limit plate is fixedly connected to one end of the plug-in rod outside the drive wheel. A drive spring is sleeved on the plug-in rod. One end of the drive spring is fixed to the drive block, and the other end of the drive spring is fixed to the cavity wall on the side of the cavity away from the mating wheel.

[0017] A rotating wheel coaxial with the plug rod is rotatably connected to the cavity wall on the side away from the mating wheel. The plug rod passes through the rotating wheel and is threadedly engaged with the rotating wheel. The two do not have self-locking properties. The distance between the outer walls of the two rotating wheels that are close to each other is b1, and the distance between the side walls of the two fixed plates that are close to each other is b2. b1 is less than b2.

[0018] Push rods are fixedly connected to the sides of the two rotating wheels that are close to each other. The end of the push rod away from the rotating wheel is inclined towards the side wall of the drive wheel. A support rod is fixedly connected to the end of the push rod away from the rotating wheel. The length direction of the support rod is set along the axial direction of the drive wheel. A hinge block is hinged to the end of the support rod near the abutment block. The hinge block is slidably connected to the corresponding fixed plate and is located on the surface of the fixed plate near the anti-detachment plate. The sliding direction of the hinge block is perpendicular to the length direction of the guide rod.

[0019] Optionally, a T-shaped connecting block is fixedly connected to the surface of the rotating wheel away from the mating wheel, and an annular connecting groove is opened on the cavity wall on the side away from the mating wheel. The connecting block is adapted to the connecting groove, the connecting groove is coaxial with the rotating wheel, and the connecting block is slidably inserted into the connecting groove.

[0020] Optionally, the drive wheel is also equipped with a striking component, which causes the cylinder to vibrate, thereby shaking off the welding slag on the cylinder.

[0021] Optionally, the striking assembly includes a fixing tube corresponding to each of the plug rods. The fixing tube is sleeved on the outside of the corresponding plug rod and fixed to the end face of the drive wheel away from the mating wheel. The inner diameter of the fixing tube is greater than the length of the limiting plate.

[0022] The fixed tube is provided with multiple striking blocks, which are distributed along the length of the fixed tube. The limiting plate is located on one side of the striking blocks. The side wall of the striking block near the limiting plate is an arc-shaped side wall, and the arc-shaped side wall of the striking block protrudes towards the limiting plate. The fixed tube is provided with mounting grooves that correspond one-to-one with the striking blocks. The mounting grooves penetrate the side wall of the fixed tube, and each striking block is slidably inserted into the corresponding mounting groove.

[0023] A connecting rod is fixedly connected to the side wall of the striking block near the outer wall of the fixed tube. A protruding plate is fixedly connected to one end of the connecting rod outside the fixed tube. A limiting spring is sleeved on the connecting rod between the protruding plate and the fixed tube. One end of the limiting spring is fixed to the fixed tube, and the other end of the limiting spring is fixed to the protruding plate.

[0024] A gear is rotatably connected to the end face of the drive wheel near the fixed tube. The axial direction of the gear is perpendicular to the axial direction of the fixed tube. A rack that meshes with the gear is also slidably connected to the drive wheel. The length direction and sliding direction of the rack are both set along the length direction of the connecting rod. A striking spring is fixedly connected to the rack. The end of the striking spring away from the rack is fixed to the drive wheel.

[0025] A striking rod is fixedly connected to one end face of the gear. The end of the striking rod away from the gear is located between the gear and the fixed tube, and the end of the striking rod away from the gear is inclined towards the fixed tube and the drive wheel.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. By setting up a base platform, a first positioning mechanism, a second positioning mechanism, a drive frame, drive wheels, a sliding frame, mating wheels, drive components, a U-shaped frame, a trough, and limit blocks, the first and second positioning mechanisms can position the cylinder and flange when welding the cylinder and flange. At the same time, they can also drive the cylinder and flange to rotate. Furthermore, the welding robot can weld two flanges simultaneously, reducing the number of steps that operators need to take during the flange welding process, making it easier and more convenient for operators to weld the flange and cylinder.

[0028] 2. By setting up a clamping block, slider, guide rod, anti-detachment plate, fixing plate, return spring, drive block, plug rod, limit plate, drive spring, rotating wheel, push rod, support rod, hinge block, and mating groove, the clamping block can clamp the cylinder during the process of inserting the cylinder into the positioning groove on the drive wheel, thereby fixing the cylinder and the drive wheel, allowing the cylinder to rotate better with the drive wheel. During the welding process, the relative rotation between the cylinder and the drive wheel is reduced, thus making the welding work more stable.

[0029] 3. By setting up a fixed pipe, a striking block, a connecting rod, a convex plate, a limit spring, a gear, a rack, a striking spring, a striking rod, and a transmission plate, the driving block can strike the driving wheel while moving, causing the driving wheel and the cylinder to vibrate, thereby shaking off the welding slag on the cylinder and reducing the workload of workers when cleaning the welding slag. Attached Figure Description

[0030] Figure 1 This is a schematic diagram illustrating the overall structure of the welding apparatus in an embodiment of this application.

[0031] Figure 2 This is a schematic diagram illustrating part of the structure of the second positioning mechanism in an embodiment of this application.

[0032] Figure 3 This is a schematic diagram illustrating the structure on the drive wheel in an embodiment of this application.

[0033] Figure 4 This is a schematic diagram illustrating the positional relationship between the clamping block and the corresponding driving block in an embodiment of this application.

[0034] Figure 5 This is a cross-sectional view illustrating the internal structure of the cavity in an embodiment of this application.

[0035] Figure 6 This is a cross-sectional view illustrating the positional relationship between the clamping block and the corresponding driving block in an embodiment of this application.

[0036] Figure 7 It is a manifestation Figure 6 Enlarged view of the structure at point A in the middle.

[0037] Figure 8 This is a cross-sectional view illustrating the structure of the striking component in an embodiment of this application.

[0038] Figure 9 This is a cross-sectional view illustrating the connection relationship between the rotor and the drive wheel in an embodiment of this application.

[0039] Figure 10 This is a cross-sectional view illustrating the connection relationship between the rack and the drive wheel in an embodiment of this application.

[0040] Explanation of reference numerals in the attached drawings: 1. Base platform; 2. First positioning mechanism; 21. Drive frame; 22. Drive wheel; 221. Cavity; 222. Strip hole; 223. Connecting groove; 224. Sliding groove; 23. Sliding frame; 24. Mating wheel; 25. Positioning groove; 3. Second positioning mechanism; 31. U-shaped frame; 32. Groove body; 33. Limiting block; 34. Rotating ring; 35. Crossbar; 4. Fixing assembly; 41. Clamping block; 42. Slider; 43. Guide rod; 44. Anti-detachment plate; 45. Return spring; 46. Fixing plate; 461 47. Mating groove; 471. Power component; 472. Drive block; 473. Insert rod; 474. Limiting plate; 475. Rotary wheel; 476. Connecting block; 477. Push rod; 478. Support rod; 479. Hinge block; 5. Striking assembly; 51. Fixing tube; 511. Mounting groove; 52. Striking block; 53. Connecting rod; 54. Protruding plate; 55. Limiting spring; 56. Gear; 561. Mounting bracket; 562. Striking rod; 57. Rack; 571. Sliding block; 58. Striking spring; 59. Transmission plate. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0042] This application discloses a welding device for the end flanges of a flow metering cylinder. It includes a base platform 1, on which a first positioning mechanism 2 for supporting and positioning the cylinder and a second positioning mechanism 3 for supporting and positioning two flanges (the cylinder and flanges are not shown in the figures); it also includes a welding robot (also not shown in the figures), whose welding end is located at the second positioning mechanism 3.

[0043] The first positioning mechanism 2 includes a drive frame 21 fixedly connected to the upper surface of the base platform 1. The drive frame 21 has a rotatable shaft-shaped output end. The axial direction of the output end of the drive frame 21 is the same as the length direction of the base platform 1. A coaxial drive wheel 22 is fixedly connected to the output end of the drive frame 21. A sliding frame 23 is also slidably connected to the base platform 1. A mating wheel 24 coaxial with the drive wheel 22 is rotatably connected to the sliding frame 23. The diameters of the drive wheel 22 and the mating wheel 24 are the same. The sliding direction of the sliding frame 23 is set along the axial direction of the mating wheel 24. The base platform 1 is also provided with a drive component for driving the sliding frame 23 to move. The drive component is not shown in the figure. Positioning grooves 25 for inserting the end of the cylinder are opened on the end faces of the drive wheel 22 and the mating wheel 24 that are close to each other.

[0044] The second positioning mechanism 3 includes a U-shaped frame 31. The two side walls of the U-shaped frame 31 are arranged along the width direction of the base platform 1. Two grooves 32 are fixedly connected to the side of the two side walls of the U-shaped frame 31 that are close to each other. The two grooves 32 on each side wall are distributed along the length direction of the base platform 1. The length direction of the grooves 32 is set along the height direction of the base platform 1. Multiple limiting blocks 33 are fixedly connected to the two side walls of the grooves 32. The multiple limiting blocks 33 are evenly distributed along the length direction of the grooves 32. The distance between the side walls of two opposing limiting blocks 33 that are close to each other is greater than the thickness of the flange. By setting the limiting blocks 33, the flange can be limited.

[0045] The groove 32 is also provided with a rotating ring 34 that rolls with the flange. Each groove 32 is provided with two rotating rings 34. The axial direction of the rotating ring 34 is consistent with the axial direction of the drive wheel 22. The two rotating rings 34 in the groove 32 are symmetrically distributed along the length of the groove 32. A crossbar 35 is inserted into the rotating ring 34. The crossbar 35 is located between the two side walls of the groove 32. Both ends of the crossbar 35 are fixed to the corresponding side walls of the groove 32. The crossbar 35 and the rotating ring 34 rotate with each other. When the flange is inserted into the two opposite grooves 32, the flange is located between the two opposite limit blocks 33. The circumferential side wall of the flange contacts the outer side wall of the rotating ring 34. When the flange rotates, the flange and the rotating ring 34 roll with each other, making the flange rotate more smoothly.

[0046] When welding the flanges onto the cylinder, the operator inserts one flange into a pair of slots 32 and the other flange into another pair of slots 32, so that the axial direction of both flanges is along the length of the base platform 1, and each flange is located between a corresponding pair of limiting blocks 33, with the circumferential sidewall of the flange in contact with the rotating ring 34; the cylinder is inserted into the two flanges, and one end of the cylinder is inserted into the positioning groove 25 of the drive wheel 22. The drive component is controlled to move the sliding frame 23 and the mating wheel 24 toward the drive wheel 22. When the sliding frame 23 moves into position, the end of the bottom cylinder corresponding to the mating wheel 24 is inserted into the positioning groove 25 of the mating wheel 24. At this time, the drive component is controlled to keep the sliding frame 23 and the mating wheel 24 in their current positions. At this time, the drive wheel 22 and the mating wheel 24 cooperate to support and position the cylinder.

[0047] The welding robot is controlled to weld two flanges simultaneously. During the welding process, the drive frame 21 is controlled to operate, causing the output shaft of the drive frame 21 to drive the drive wheel 22, the cylinder, and the mating wheel 24 to rotate. At the same time, the cylinder drives the flange to rotate. During the rotation of the flange, the flange and the rotating ring 34 roll together. With the above settings, during the welding process, the operator does not need to manually maintain the position of the flange and the cylinder, and can weld two flanges at the same time. This reduces the number of steps that the operator needs to take during the flange welding process, making it easier and more convenient for the operator to weld the flange and the cylinder.

[0048] To reduce the relative rotation between the cylinder and the drive wheel 22 and the mating wheel 24, and to allow the cylinder to rotate better with the drive wheel 22 and the mating wheel 24, a fixing component 4 for fixing the cylinder is provided on the mating wheel 24. The fixing component 4 includes two abutting blocks 41 that are slidably inserted into the end face of the mating wheel 24 near the drive wheel 22. The two abutting blocks 41 are both located within the circle formed by the positioning groove 25. The two abutting blocks 41 are symmetrically distributed along the circumference of the mating wheel 24. The mating wheel 24 has a cavity 221. A strip hole 222 corresponding to the abutting block 41 is opened on the end face of the mating wheel 24 near the drive wheel 22. The length direction of the strip hole 222 is arranged along the radial direction of the mating wheel 24.

[0049] A slider 42 is fixedly connected to the clamping block 41 and inserted into the strip hole 222. The slider 42 is located in the cavity 221 and contacts the cavity wall of the cavity 221 near the drive wheel 22. The slider 42 cooperates with the strip hole 222, so that the clamping block 41 and the mating wheel 24 are slidably connected. A guide rod 43 is slidably inserted into the slider 42 and passes through it. The length direction of the guide rod 43 is set along the length direction of the strip hole 222. One end of the guide rod 43 is fixed to the cavity wall of the cavity 221 near the outer wall of the mating wheel 24, and the other end of the guide rod 43 is fixedly connected to an anti-detachment plate 44.

[0050] A return spring 45 is fixedly connected to the side wall of slider 42 away from anti-detachment plate 44. The return spring 45 is sleeved on guide rod 43. One end of the return spring 45 is fixed to slider 42, and the other end is fixed to the cavity wall corresponding to cavity 221. A fixing plate 46 is fixedly connected to the side wall of slider 42 near anti-detachment plate 44. The length direction of fixing plate 46 is perpendicular to the length direction of guide rod 43. The return spring 45 causes fixing plate 46 to abut against anti-detachment plate 44. In the initial state, the return spring 45 is not subjected to external force. At this time, the positions of the two abutting blocks 41 are in the initial position, and the distance between the two abutting blocks 41 on the side away from each other is less than the inner diameter of the cylinder.

[0051] The fixing component 4 also includes a power component 47 that drives the two abutment blocks 41 to move. The power component 47 includes a drive block 471 that corresponds one-to-one with the abutment blocks 41. The abutment blocks 41 and the corresponding drive blocks 471 are arranged in a clockwise direction. The drive blocks 471 are located on the positioning groove 25 and pass through the end face of the mating wheel 24 near the drive wheel 22 and are slidably inserted into the mating wheel 24. The side of the drive block 471 near the drive wheel 22 protrudes from the mating wheel 24. The end of the drive block 471 away from the drive wheel 22 is inserted into the cavity 221. The moving direction of the drive block 471 is set along the axial direction of the mating wheel 24.

[0052] A plug rod 472 is fixedly connected to the side wall of the drive block 471 in the cavity 221. The length direction of the plug rod 472 is arranged along the axial direction of the mating wheel 24. The plug rod 472 passes through the end face of the mating wheel 24 away from the drive wheel 22 and is slidably plugged into the mating wheel 24. A limit plate 473 is fixedly connected to one end of the plug rod 472 outside the mating wheel 24. A drive spring 474 located in the cavity 221 is sleeved on the plug rod 472. One end of the drive spring 474 is fixedly connected to the drive block 471, and the other end of the drive spring 474 is fixed to the cavity wall of the cavity 221 away from the drive wheel 22. When the drive spring 474 is not subjected to external force, the state of the drive spring 474 is the initial state. At this time, the drive spring 474 causes the drive block 471 to protrude out of the mating wheel 24. The position of the drive block 471 at this time is the initial position.

[0053] The power component 47 also includes a rotating wheel 475 rotatably connected to the cavity wall of the cavity 221 on the side away from the drive wheel 22. The rotating wheel 475 is coaxial with the plug rod 472. A T-shaped connecting block 476 is fixedly connected to the end face of the rotating wheel 475 away from the drive wheel 22. A circular connecting groove 223 is opened on the corresponding cavity wall of the cavity 221. The connecting groove 223 is adapted to the connecting block 476, and the connecting groove 223 is also coaxial with the plug rod 472. The connecting block 476 is slidably inserted into the connecting groove 223. The connecting block 476 and the connecting groove 223 cooperate to make the rotating wheel 475 and the mating wheel 24 rotatably connected. The plug rod 472 passes through the rotating wheel 475 and is threadedly engaged with the rotating wheel 475. Neither of them has self-locking properties.

[0054] The minimum distance between the adjacent sides of the outer walls of the two rotating wheels 475 is b1, and the distance between the adjacent side walls of the two fixed plates 46 is b2, where b1 is less than b2. A push rod 477 is fixedly connected to the adjacent side of each of the two rotating wheels 475. The end of the push rod 477 away from the rotating wheel 475 is inclined towards the corresponding fixed plate 46, i.e., the end of the push rod 477 away from the rotating wheel 475 is inclined towards the outer wall of the mating wheel 24. The end of the push rod 477 away from the rotating wheel 475 is fixed. A support rod 478 is connected, and the length direction of the support rod 478 is arranged along the axial direction of the mating wheel 24. A T-shaped hinge block 479 is hinged to one end of the support rod 478 near the drive wheel 22. The hinge block 479 is located on the side of the fixed plate 46 near the anti-detachment plate 44. A mating groove 461 corresponding to the hinge block 479 is opened on the side wall of the fixed plate 46 near the anti-detachment plate 44. The length direction of the mating groove 461 is arranged along the length direction of the fixed plate 46. The hinge block 479 is slidably inserted into the mating groove 461.

[0055] When fixing the cylinder, one end of the cylinder is inserted into the positioning groove 25 of the drive wheel 22. The drive component is controlled to move the sliding frame 23 and the mating wheel 24 towards the cylinder. During this process, the clamping block 41 is gradually inserted into the cylinder. When the cylinder contacts the drive block 471, as the sliding frame 23 and the mating wheel 24 continue to move, the cylinder pushes the drive block 471 into the cavity 221 and compresses the drive spring 474. The drive block 471 drives the insertion rod 472 and the limiting plate 473 to move. When the insertion rod 472 moves, it cooperates with the rotating wheel 475, causing the rotating wheel 475 to drive the push rod 477, the support rod 478 and the hinge block 479 to rotate. This causes the hinge block 479 to move towards the outer wall of the mating wheel 24. The hinge block 479 pushes the fixing plate 46, the slider 42 and the clamping block 41 to move, causing the two clamping blocks 41 to move away from each other. At the same time, it also compresses the return spring 45.

[0056] When the end of the cylinder away from the drive wheel 22 is inserted into the positioning groove 25 of the mating wheel 24, the sliding frame 23 and the mating wheel 24 move into place. At this time, the drive block 471 and the clamping block 41 also move into place. The clamping block 41 abuts against the inner wall of the cylinder. The clamping block 41 cooperates with the cylinder and the mating wheel 24, so that the cylinder and the mating wheel 24 can maintain synchronous rotation. During the welding of the flange, the relative rotation between the cylinder and the mating wheel 24 and the drive wheel 22 is reduced.

[0057] After welding is completed, the control drive unit operates, causing the sliding frame 23 and the mating wheel 24 to move away from the drive wheel 22. Simultaneously, the drive spring 474 returns to its original deformation and pushes the drive block 471 outward from the drive wheel 22. The drive block 471 pushes the cylinder and flange to move, causing the flange to move within the groove 32. The drive block 471 drives the insertion rod 472 and the limiting plate 473 to move and reset. The insertion rod 472 cooperates with the rotating wheel 475, causing the push rod 477, support rod 478, and hinge to... Block 479 moves to the center of mating wheel 24 and resets. Hinged block 479 engages with fixed plate 46. At the same time, reset spring 45 also returns to its original deformation and pushes slider 42, pressing block 41 and fixed plate 46 to move and reset. When the cylinder disengages from driving block 471, reset spring 45 and driving spring 474 both return to their initial state. Push rod 477, hinged block 479, driving block 471 and pressing block 41 all return to their initial positions. Pressing block 41 also disengages from cylinder.

[0058] To further reduce the workload of operators, a striking component 5 is also provided on the drive wheel 22. When the sliding frame 23 and the mating wheel 24 move away from the drive wheel 22, the striking component 5 works to strike the drive wheel 22, causing the cylinder to vibrate and thus shaking off the welding slag on the cylinder, reducing the workload of operators in cleaning the welding slag. The striking component 5 includes a fixed tube 51 that corresponds one-to-one with the plug rod 472. The fixed tube 51 is sleeved on the plug rod 472 and is located on the side of the drive wheel 22 away from the mating wheel 24. The fixed tube 51 is fixed to the drive wheel 22, and the inner diameter of the fixed tube 51 is greater than the length of the limiting plate 473.

[0059] The fixed tube 51 is provided with multiple striking blocks 52. The limiting plate 473 is located on one side of the striking block 52. The side wall of the striking block 52 near the limiting plate 473 is an arc-shaped side wall, and the arc-shaped side wall of the striking block 52 protrudes in the direction close to the axis of the fixed tube 51. The fixed tube 51 is provided with mounting grooves 511 corresponding to the striking blocks 52. The mounting grooves 511 penetrate the side wall of the fixed tube 51. A connecting rod 53 is fixedly connected to the side wall of the striking block 52 away from the limiting plate 473. The length direction of the connecting rod 53 is set along the sliding direction of the striking block 52.

[0060] A protruding plate 54 is fixedly connected to one end of the connecting rod 53 outside the fixed tube 51. A limiting spring 55 is provided between the protruding plate 54 and the fixed tube 51, and is sleeved on the connecting rod 53. One end of the limiting spring 55 is fixed to the outer wall of the fixed tube 51, and the other end of the limiting spring 55 is fixed to the protruding plate 54. In the initial state, the driving spring 474 causes the limiting plate 473 to be located at the end of the fixed tube 51 closer to the driving wheel 22, and all the corresponding striking blocks 52 are located on the side of the limiting plate 473 away from the driving wheel 22. At this time, the limiting spring 55 is in the initial state, and the projections of the limiting plate 473 and the striking blocks 52 along the axial direction of the fixed tube 51 overlap.

[0061] A mounting bracket 561 is fixedly connected to the end face of the drive wheel 22 away from the mating wheel 24. A gear 56 is rotatably connected to the mounting bracket 561. The axis of the gear 56 is perpendicular to the axis of the drive wheel 22. Both the mounting bracket 561 and the gear 56 are located on the side of the convex plate 54 away from the connecting rod 53. A striking rod 562 is fixedly connected to one end face of the gear 56. In the initial state, the end of the striking rod 562 away from the gear 56 is located between the gear 56 and the fixed tube 51, and the end of the striking rod 562 away from the gear 56 is inclined towards the drive wheel 22 and contacts the end face of the drive wheel 22 away from the mating wheel 24.

[0062] A rack 57, which meshes with a gear 56, is slidably connected to the end face of the drive wheel 22 away from the mating wheel 24. The length direction of the rack 57 is consistent with the length direction of the connecting rod 53. A sliding block 571 is fixedly connected to the surface of the rack 57 near the drive wheel 22. A sliding groove 224 adapted to the sliding block 571 is provided on the drive wheel 22. The length direction of the sliding groove 224 is movable in the length direction of the connecting rod 53. A connecting block 476 is slidably inserted into the connecting groove 223. A striking spring 58 is fixedly connected to the side wall of the sliding block 571 away from the fixed tube 51. The end of the striking spring 58 away from the sliding block 571 is fixed to the groove wall of the corresponding end of the sliding groove 224. A transmission plate 59 is fixedly connected to the end face of the rack 57 near the fixed tube 51. The end faces of the transmission plate 59 and the fixed tube 51 away from the drive wheel 22 are flush.

[0063] As the sliding frame 23 and the mating wheel 24 move closer to the drive wheel 22, the cylinder pushes the drive block 471 into the cavity 221. The drive block 471 drives the insertion rod 472 and the limiting plate 473 to move, causing the limiting plate 473 to move away from the drive wheel 22 in the fixed tube 51. During this process, the limiting plate 473 pushes the striking block 52 out of the fixed tube 51. The striking block 52 drives the connecting rod 53 and the protruding plate 54 to move, while the limiting spring 55 is stretched. The movement of the protruding plate 54 pushes the transmission plate 59 and the rack 57 to move, while also compressing the striking spring 58. The rack 57 and the gear 56 cooperate, causing the gear 56 to drive the striking rod 562 to rotate. The striking rod 562 strikes the drive wheel 22, causing the drive wheel 22 and the cylinder to vibrate.

[0064] When the limiting plate 473 disengages from the striking block 52, the limiting spring 55 returns to its original deformation and drives the convex plate 54, connecting rod 53, and striking block 52 to reset. At this time, the striking spring 58 also returns to its original deformation, causing the transmission plate 59, rack 57, gear 56, and striking rod 562 to return to their initial positions. As the limiting plate 473 continues to move, it sequentially pushes the remaining striking blocks 52 to move. Each time the striking block 52 moves and resets, it causes the gear 56 and striking rod 562 to rotate. The drive wheel 22 and the cylinder are struck once during the movement and reset process. As the sliding frame 23 and the mating wheel 24 move away from the drive wheel 22, the drive block 471 drives the plug rod 472 and the limiting plate 473 to move and reset. During this process, the striking block 52, the protruding plate 54, the transmission plate 59, the rack 57, the striking spring 58, the gear 56 and the striking rod 562 work together to strike the drive wheel 22 and the cylinder again, thereby shaking off the welding slag attached to the cylinder.

[0065] The implementation principle of the flow metering cylinder end flange welding device in this application embodiment is as follows: Two flanges are each inserted into two pairs of grooves 32. At this time, the rotating ring 34 contacts the side wall of the flange. The cylinder is inserted into the positioning groove 25 of the mating wheel 24, and the driving component is controlled to work, so that the sliding frame 23, the mating wheel 24 and the cylinder move towards the driving wheel 22. As the mating wheel 24 and the cylinder continue to move, the cylinder pushes the driving block 471 to move into the driving wheel 22. The driving block 471, the insertion rod 472, the push rod 477, the hinge block 479, the fixing plate 46 and the slider 42 cooperate to move the pressing block 41 to abut against the inner wall of the cylinder, thereby fixing the cylinder and the driving wheel 22. During the movement of the driving block 471, the limiting plate 473, the striking block 52, the connecting rod 53, the protruding plate 54, the transmission plate 59, the rack 57, the gear 56 and the striking rod 562 cooperate to strike the driving wheel 22.

[0066] The welding robot is controlled to weld the flange and the cylinder. Simultaneously, the drive frame 21 is controlled to rotate the cylinder, mating wheel 24, and flange via the drive wheel 22. After welding, the drive components are controlled to move the sliding frame 23 and mating wheel 24 away from the drive wheel 22 and reset. At the same time, the drive block 471 moves and resets under the action of the drive spring 474. The drive block 471 cooperates with the rotating wheel 475, push rod 477, hinge block 479, and fixing plate 46 to move and reset the clamping block 41, releasing the fixation of the cylinder. The drive block 471 cooperates with the limiting plate 473, striking block 52, connecting rod 53, protruding plate 54, transmission plate 59, rack 57, gear 56, and striking rod 562 to strike the drive wheel 22, causing the cylinder to vibrate and dislodging the welding slag on the cylinder. When the mating wheel 24 is no longer in contact with the cylinder, the cylinder can be removed.

[0067] 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 flow metering cylinder end flange welding device, characterized in that: The system includes a base platform (1), on which a first positioning mechanism (2) is provided for supporting and positioning the cylinder. The first positioning mechanism (2) includes a drive frame (21) fixed on the base platform (1). The drive frame (21) has a rotatable shaft-shaped output end. A coaxial drive wheel (22) is fixedly connected to the output end of the drive frame (21). A sliding frame (23) is also slidably connected on the base platform (1). The sliding direction of the sliding frame (23) is consistent with the axial direction of the drive wheel (22). The base platform (1) is provided with a drive component for moving the sliding frame (23). A mating wheel (24) coaxial with the drive wheel (22) is rotatably connected on the sliding frame (23). An annular positioning groove (25) for inserting the cylinder is opened on the end faces of the drive wheel (22) and the mating wheel (24) that are close to each other. The welding device also includes a second positioning mechanism (3) for supporting and positioning the flange. The second positioning mechanism (3) includes a U-shaped frame (31) fixed on the base (1). The two side walls of the U-shaped frame (31) are arranged along the width direction of the base (1). The U-shaped frame (31) is located between the drive frame (21) and the sliding frame (23). Vertically arranged grooves (32) are fixedly connected to the two side walls of the U-shaped frame (31) that are close to each other. Multiple limiting blocks (33) are fixedly connected to the two side walls of the grooves (32) that are close to each other. The multiple limiting blocks (33) are arranged along the length direction of the grooves (32). The distance between two opposing limiting blocks (33) on the grooves (32) is greater than the thickness of the flange. The welding device also includes a welding robot mounted on the base (1), with the welding end of the welding robot located at the U-shaped frame (31); The drive wheel (22) is also provided with a fixing component (4) to make the cylinder and the drive wheel (22) fit more stably; The drive wheel (22) has a cavity (221). The fixing component (4) includes two abutting blocks (41) that are slidably inserted into the end face of the drive wheel (22) near the mating wheel (24). The two abutting blocks (41) are symmetrically distributed along the circumference of the drive wheel (22). The drive wheel (22) has a strip hole (222) that corresponds to the abutting block (41). A slider (42) is fixedly connected to the end of the abutting block (41) away from the mating wheel (24). The slider (42) is located in the cavity (221) and the slider (42) is in contact with the cavity wall of the cavity (221). A guide rod (43) is slidably inserted into the slider (42), and the length direction of the guide rod (43) is set along the sliding direction of the slider (42). The guide rod (43) is fixed to the cavity wall of the cavity (221). A reset spring (45) is sleeved on the guide rod (43). The reset spring (45) is located on the side of the slider (42) near the edge of the drive wheel (22). One end of the reset spring (45) is fixed to the cavity wall of the cavity (221), and the other end of the reset spring (45) is fixed to the slider (42). A fixed plate (46) is fixedly connected to the slider (42), and an anti-detachment plate (44) is fixedly connected to one end of the guide rod (43) away from the outer wall of the drive wheel (22). The reset spring (45) makes the fixed plate (46) abut against the anti-detachment plate (44). At this time, the distance between the ends of the two abutting blocks (41) that are far apart from each other is less than the inner diameter of the cylinder. The fixing component (4) also includes a power component (47) that drives the abutment block (41) to move toward the edge of the drive wheel (22). The power component (47) includes a drive block (471) that corresponds one-to-one with the abutment block (41). The drive block (471) is located on the positioning groove (25). The drive block (471) protrudes from the end face of the drive wheel (22) and passes through the end face of the drive wheel (22) and is slidably inserted with the drive wheel (22). The sliding direction of the drive block (471) is set along the axial direction of the drive wheel (22). A plug rod (472) is fixedly connected to the surface of the drive block (471) inside the cavity (221). The plug rod (472) passes through the end face of the drive wheel (22) near the mating wheel (24) and is slidably plugged into the drive wheel (22). A limit plate (473) is fixedly connected to one end of the plug rod (472) outside the drive wheel (22). A drive spring (474) is sleeved on the plug rod (472). One end of the drive spring (474) is fixed to the drive block (471), and the other end of the drive spring (474) is fixed to the cavity wall of the cavity (221) away from the mating wheel (24). On the cavity wall away from the mating wheel (24) of the cavity (221), there is a rotating wheel (475) coaxial with the plug rod (472). The plug rod (472) passes through the rotating wheel (475) and is threadedly engaged with the rotating wheel (475). The two do not have self-locking properties. The distance between the outer walls of the two rotating wheels (475) that are close to each other is b1, and the distance between the side walls of the two fixing plates (46) that are close to each other is b2. b1 is less than b2. Push rods (477) are fixedly connected to the side of each of the two rotating wheels (475) that are close to each other. The end of the push rod (477) away from the rotating wheel (475) is inclined toward the side wall of the drive wheel (22). The end of the push rod (477) away from the rotating wheel (475) is fixedly connected to a support rod (478). The length direction of the support rod (478) is set along the axial direction of the drive wheel (22). The end of the support rod (478) near the abutment block (41) is hinged to a hinge block (479). The hinge block (479) is slidably connected to the corresponding fixed plate (46). The hinge block (479) is located on the surface of the fixed plate (46) near the anti-detachment plate (44). The sliding direction of the hinge block (479) is perpendicular to the length direction of the guide rod (43).

2. The flow metering cylinder end flange welding device according to claim 1, characterized in that: Two crossbars (35) are provided between two opposite side walls of the groove (32). The two crossbars (35) are symmetrically distributed along the length of the groove (32). Both ends of the crossbars (35) are fixed to the corresponding side walls of the groove (32). A rotating ring (34) is sleeved on the crossbar (35). The rotating ring (34) and the crossbar (35) can rotate relative to each other. The rotating ring (34) is located between two opposite limit blocks (33). The rotating ring (34) can roll with the flange.

3. The flow metering cylinder end flange welding device according to claim 1, characterized in that: A T-shaped connecting block (476) is fixedly connected to the surface of the rotating wheel (475) away from the mating wheel (24). A circular connecting groove (223) is opened on the cavity wall of the cavity (221) away from the mating wheel (24). The connecting block (476) is adapted to the connecting groove (223). The connecting groove (223) is coaxial with the rotating wheel (475). The connecting block (476) is slidably inserted into the connecting groove (223).

4. The flow metering cylinder end flange welding device according to claim 1, characterized in that: The drive wheel (22) is also provided with a striking component (5), which causes the cylinder to vibrate, thereby shaking off the welding slag on the cylinder.

5. The flow metering cylinder end flange welding device according to claim 4, characterized in that: The striking assembly (5) includes a fixed tube (51) corresponding to each of the plug rods (472). The fixed tube (51) is sleeved on the outside of the corresponding plug rod (472) and fixed to the end face of the drive wheel (22) away from the mating wheel (24). The inner diameter of the fixed tube (51) is greater than the length of the limiting plate (473). The fixed tube (51) is provided with multiple striking blocks (52), which are distributed along the length of the fixed tube (51). The limiting plate (473) is located on one side of the striking block (52). The side wall of the striking block (52) near the limiting plate (473) is an arc-shaped side wall, and the arc-shaped side wall of the striking block (52) protrudes towards the limiting plate (473). The fixed tube (51) is provided with mounting grooves (511) corresponding to the striking blocks (52). The mounting grooves (511) penetrate the side wall of the fixed tube (51), and each striking block (52) is slidably inserted into the corresponding mounting groove (511). A connecting rod (53) is fixedly connected to the side wall of the striking block (52) near the outer wall of the fixed tube (51). A protruding plate (54) is fixedly connected to one end of the connecting rod (53) outside the fixed tube (51). A limiting spring (55) is sleeved on the connecting rod (53) between the protruding plate (54) and the fixed tube (51). One end of the limiting spring (55) is fixed to the fixed tube (51), and the other end of the limiting spring (55) is fixed to the protruding plate (54). A gear (56) is rotatably connected to the end face of the drive wheel (22) near the fixed tube (51). The axial direction of the gear (56) is perpendicular to the axial direction of the fixed tube (51). A rack (57) that meshes with the gear (56) is also slidably connected to the drive wheel (22). The length direction and sliding direction of the rack (57) are both set along the length direction of the connecting rod (53). A striking spring (58) is fixedly connected to the rack (57). The end of the striking spring (58) away from the rack (57) is fixed to the drive wheel (22). A striking rod (562) is fixedly connected to one end face of the gear (56). The end of the striking rod (562) away from the gear (56) is located between the gear (56) and the fixed tube (51), and the end of the striking rod (562) away from the gear (56) is inclined toward the fixed tube (51) and the drive wheel (22).

Images