Tube plate welding turning gun rack

Abstract

The utility model discloses a tube plate welding rotating gun frame which comprises a base plate, a main shaft, a rotating assembly and a rotating frame. The base plate is of a structure used for installing the rotating bearing and the main shaft, and a bearing seat is arranged on the base plate; the rotating assembly is mounted on the base plate; a bearing hole of a rotating plate of the rotating stand is matched with a bearing of the main shaft, a seat plate is arranged below the rotating stand, and a shaft sleeve seat is arranged on the seat plate; the upper part of the main shaft is locked in the bearing seat, and the middle lower part of the main shaft is matched with the shaft sleeve seat through the shaft sleeve, is in interference fit with the rotating stand and is in movable fit with the main shaft; and the coaxiality of the upper end and the lower end of the rotating stand and the main shaft is jointly ensured by the bearing seat and the shaft sleeve seat. According to the scheme, the rotating frame can rotate freely and has good radial positioning, it is guaranteed that the coaxial precision of the welding gun is high in the process that the welding gun rotates around the main shaft, assistance is provided for precise welding, welding parameters such as the welding speed, the arc length and the angle are more stable, the welding quality is improved, and the operation labor intensity is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of welding processing of tube sheet structures, in particular to a tube sheet welding rotating gun stand in boiler and heat exchanger industries. Background Art

[0002] In the boiler and heat exchanger industry, their products often have tube sheet structures. Generally, the weld between the heat exchange tube and the tube sheet is welded on the tube sheet surface along the outside of the heat exchange tube, and the welding equipment will use a tube sheet automatic welding machine.

[0003] The tube sheet automatic welding machine generally includes a base plate with a reducer and a bearing seat installed. The bearing seat is installed with a motor, a reducer and a main shaft. The main shaft is installed with a turntable, and a gun clamp for mounting a welding gun is installed on the turntable. The turntable rotates driven by the motor and the reducer. The automatic tube sheet welding machine is equipped with a welding power supply. Driven by the electric control box, it replaces the manual clamping of the welding gun to complete the welding work on the outside of the heat exchange tube along the tube sheet surface.

[0004] In the process of realizing the utility model, the applicant found that the existing automatic tube-sheet welding machine has at least the following problems: in the existing automatic tube-sheet welding machine, the rotating frame cooperates with the main shaft through the bearing, and the coaxial accuracy of the welding gun on the rotating frame during the rotation around the main shaft cannot be guaranteed, thereby the welding accuracy of the welding gun during the rotation welding process cannot be guaranteed, and the weld path will be offset, resulting in poor welding quality.

[0005] In view of this, how to solve the problem that the existing tube-to-sheet automatic welding machine cannot ensure the coaxial accuracy of the welding gun during the rotation around the main axis has become a topic to be studied and solved by the present utility model. Utility Model Content

[0006] The utility model aims to provide a tube plate welding rotating gun stand.

[0007] To achieve the above-mentioned purpose, the utility model proposes a tube-sheet welding turret frame, the tube-sheet welding turret frame comprises a base plate, a main shaft, a rotating assembly and a rotating frame; the base plate is a structure for installing a rotating bearing and a main shaft, and a bearing seat is arranged on the base plate; the rotating assembly is installed on the base plate; the rotating frame comprises a rotating plate, a seat plate and a sleeve seat, the bearing hole on the rotating plate cooperates with the bearing of the main shaft, a seat plate is arranged below the rotating plate, and a sleeve seat is arranged on the seat plate; the upper part of the main shaft is locked in the bearing seat, the middle and lower parts of the main shaft cooperate with the sleeve seat through the sleeve, the sleeve is interference-fitted with the rotating frame and dynamically cooperates with the main shaft; the rotating frame is transmission-coordinated with the rotating assembly, and the rotating assembly drives the rotating frame to rotate around the main shaft; the bearing seat and the sleeve seat jointly ensure the coaxiality of the upper and lower ends of the rotating frame with the main shaft, and the distance between the bearing seat and the sleeve seat is more than 3 times the diameter of the main shaft.

[0008] The relevant contents of this utility model are explained as follows:

[0009] 1. Through the implementation of the above technical scheme of the utility model, through the study of the welding gun on the rotating frame in the existing tube-to-sheet automatic welding machine rotating around the main shaft, a tube-to-sheet welding rotating gun frame of the utility model is designed, the tube-to-sheet welding rotating gun frame includes a base plate, a main shaft, a rotating assembly, and a rotating frame, and is designed to ensure the coaxiality of the upper end and the lower end of the rotating frame with the main shaft by the bearing seat and the sleeve seat, the distance between the bearing seat and the sleeve seat is more than 3 times the diameter of the main shaft, wherein the components in the bearing seat lock the main shaft in the bearing seat, and the rotating plate of the rotating frame The bearing hole cooperates with the bearing of the main shaft to ensure the coaxiality between the upper end of the turret and the main shaft. A shaft sleeve seat is arranged on the seat plate at the lower end of the turret. The middle and lower parts of the main shaft cooperate with the shaft sleeve seat through the shaft sleeve, that is, the shaft sleeve at the lower end of the turret cooperates with the main shaft to ensure the coaxiality between its lower end and the main shaft, so that the turret can rotate freely and have good radial positioning. Due to the large spacing between the two ends and the small matching gap, the coaxial accuracy of the welding gun is guaranteed during the rotation around the main shaft, thereby providing assistance for precise welding, making welding parameters such as welding speed, arc length and angle more stable, improving welding quality and reducing operating labor intensity.

[0010] 2. In the above technical solution, a rib plate is provided on the seat plate for increasing strength, so as to strengthen the entire rotating frame.

[0011] 3. In the above technical solution, the distance between the bearing seat and the sleeve seat is 80cm-100cm. The distance is reasonably set so that the matching distance between the upper and lower ends of the rotating frame and the main shaft is large enough to ensure a sufficiently high coaxial accuracy.

[0012] 4. In the above technical solution, the rotating assembly includes a gearbox, a motor, and a driving gear. The gearbox is installed on a base plate, the motor is installed on the gearbox, the gearbox has an output shaft extending downward, the driving gear is installed on the output shaft, the driving gear is matched with the driven gear on the rotating frame, the motor rotates at a high speed under the action of the power supply, drives the gearbox to work, the gearbox is installed on the base plate, reduces the speed of the motor to a suitable speed and drives the driving gear to drive the driven gear, the driven gear is installed on the bearing and fixed to the rotating frame, and the driven gear is driven by the driving gear to rotate so as to rotate the welding gun on the rotating frame, thereby ensuring the accurate and stable rotation operation of the rotating frame and the welding gun.

[0013] 5. In the above technical solution, the rotating frame is connected to a gun clamp through an adjustment component, and the welding gun is mounted on the gun clamp. The adjustment component is used to adjust various angles and positions of the welding gun on the gun clamp, so that the tube-to-sheet welding rotating gun frame is suitable for tube-to-sheet welding of various specifications and process requirements.

[0014] 6. In the above technical solution, the adjustment assembly includes a cross slide for adjusting the vertical and horizontal positions of the welding gun, an axis clamp for adjusting the left and right angles of the welding gun, and a connecting card plate for adjusting the front and rear angles of the welding gun. The axis body of the cross slide is connected to the mounting hole of the rotating frame with screws, the hanging shaft is connected to the cross slide, the axis clamp is installed on the hanging shaft, and the gun clamp is installed on the connecting card plate. This structure ensures the reliability and accuracy of various angles and position adjustments of the welding gun on the gun clamp, thereby further improving the welding quality.

[0015] 7. In this utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0016] 8. In the present utility model, the orientation or position relationship indicated by the terms "center", "upper", "lower", "axial", "bottom", "inner", "outer", etc. is based on the orientation or position assembly relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0017] 9. In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0018] Due to the application of the above scheme, the utility model has the following advantages and effects compared with the prior art:

[0019] In the above technical scheme of the utility model, a tube-to-sheet welding turret frame of the utility model is designed by studying the process of the welding gun on the turret in the existing tube-to-sheet automatic welding machine rotating around the main shaft. The tube-to-sheet welding turret frame includes a base plate, a main shaft, a rotating assembly, and a turret, and is designed so that the coaxiality of the upper end and the lower end of the turret and the main shaft is jointly ensured by the bearing seat and the shaft sleeve seat. The distance between the bearing seat and the shaft sleeve seat is more than 3 times the diameter of the main shaft, wherein the components in the bearing seat lock the main shaft in the bearing seat, and the bearing hole of the rotating plate of the turret The bearing of the main shaft is matched to ensure the coaxiality of the upper end of the turret and the main shaft. A shaft sleeve seat is arranged on the seat plate at the lower end of the turret. The middle and lower parts of the main shaft are matched with the shaft sleeve seat through the shaft sleeve, that is, the shaft sleeve at the lower end of the turret is matched with the main shaft to ensure the coaxiality of its lower end with the main shaft. Due to the large spacing between the two ends and the small matching gap, the turret can rotate freely and have good radial positioning, ensuring the high coaxial accuracy of the welding gun during the rotation around the main shaft, thereby providing assistance for precise welding, making welding parameters such as welding speed, arc length and angle more stable, improving welding quality and reducing operating labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of a tube-to-sheet welding rotating gun frame structure according to an embodiment of the utility model;

[0021] Figure 2 It is a partial structural schematic diagram of an embodiment of the utility model;

[0022] FIG3 is a cross-sectional view of a rotating frame in an embodiment of the present utility model;

[0023] FIG. 4 is a plan view of a rotating frame in an embodiment of the present utility model.

[0024] The various parts of the above drawings are shown as follows:

[0025] 1. Gun card

[0026] 2. Connecting card board

[0027] 3. Axis card

[0028] 4. Hanging Scroll

[0029] 5. Cross slide

[0030] 6. Rotating rack

[0031] 61. Rotating plate

[0032] 62. Rib board

[0033] 63. Seat plate

[0034] 64. Sleeve seat

[0035] 7. Screws

[0036] 8. Dust cover

[0037] 9. Substrate

[0038] 10. Gearbox

[0039] 11. Handle wheel

[0040] 12. Pin

[0041] 13. Pull rod

[0042] 14. Electric motor

[0043] 15. Driving gear

[0044] 16. Beam ring

[0045] 17. Spindle

[0046] 18. Round nut A

[0047] 19. Bearing seat

[0048] 20. Round nut B

[0049] 21. Set screw

[0050] 22. Bearings

[0051] 23. Driven gear

[0052] 24. Retaining ring

[0053] 25. Round nut C

[0054] 26. Screws

[0055] 27. Bushing

[0056] 28. Washer

[0057] 29. Copper cooling ring

[0058] 30. Upper expansion cone

[0059] 31. Spring

[0060] 32. Expansion sleeve

[0061] 33. Lower expansion cone

[0062] 34. Slotted nuts

[0063] 35. Sales. DETAILED DESCRIPTION

[0064] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0065] like Figures 1 to 4 As shown, the embodiment of the utility model proposes a tube-to-sheet welding turret, which includes a base plate 9, a spindle 17, a rotating assembly, and a rotating frame 6; the base plate 9 is a structure for installing a rotating bearing and a spindle 17, and a bearing seat 19 is arranged on the base plate 9; the rotating assembly is installed on the base plate 9; the rotating frame 6 includes a rotating plate 61, a seat plate 63 and a sleeve seat 64, the bearing hole on the rotating plate 61 cooperates with the bearing of the spindle 17, a seat plate 63 is arranged below the rotating plate 61, and a sleeve seat is arranged on the seat plate 63 64; the upper part of the main shaft 17 is locked in the bearing seat 19, the middle and lower parts of the main shaft 17 are matched with the sleeve seat 64 through the sleeve 27, the sleeve 27 is interference fit with the rotating frame 6 and is dynamically matched with the main shaft 17; the rotating frame 6 is transmission matched with the rotating assembly, and the rotating assembly drives the rotating frame 6 to rotate around the main shaft 17; the bearing seat 19 and the sleeve seat 64 jointly ensure the coaxiality of the upper and lower ends of the rotating frame 6 and the main shaft 17, and the distance between the bearing seat 19 and the sleeve seat 64 is more than 3 times the diameter of the main shaft 17.

[0066] Through the implementation of the embodiment of the utility model, through the study of the welding gun on the rotating frame 6 in the existing tube-to-sheet automatic welding machine rotating around the main shaft 17, a tube-to-sheet welding rotating gun frame of the utility model is designed, the tube-to-sheet welding rotating gun frame includes a base plate 9, a main shaft 17, a rotating assembly, and a rotating frame 6, and is designed to be jointly ensured by the bearing seat 19 and the sleeve seat 64 The coaxiality of the upper end and the lower end of the rotating frame 6 and the main shaft 17, the distance between the bearing seat 19 and the sleeve seat 64 is more than 3 times the diameter of the main shaft 17, wherein the components in the bearing seat 19 lock the main shaft 17 in the bearing seat 19, and the rotating plate 61 at the upper end of the rotating frame 6 The bearing hole cooperates with the bearing of the main shaft 17 to ensure the coaxiality between the upper end of the rotating frame 6 and the main shaft 17. A sleeve seat 64 is provided on the seat plate 63 at the lower end of the rotating frame 6. The middle and lower parts of the main shaft 17 cooperate with the sleeve seat 64 through the sleeve 27, that is, the sleeve 27 at the lower end of the rotating frame 6 cooperates with the main shaft 17 to ensure the coaxiality of its lower end with the main shaft 17, so that the rotating frame 6 can rotate freely and have good radial positioning. Due to the large spacing between the two ends and the small matching gap, the coaxial accuracy of the welding gun is high during the rotation around the main shaft 17, thereby providing assistance for precise welding, making welding parameters such as welding speed, arc length, angle more stable, improving welding quality, and reducing operating labor intensity.

[0067] In the embodiment of the present invention, a rib plate for increasing strength is disposed on the seat plate 63 to strengthen the entire rotating frame 6 .

[0068] In the embodiment of the utility model, the distance between the bearing seat 19 and the sleeve seat 64 is 80cm-100cm. The distance is reasonably set so that the matching distance between the upper and lower ends of the rotating frame 6 and the main shaft 17 is large enough to ensure a sufficiently high coaxial accuracy.

[0069] In an embodiment of the utility model, the rotating assembly includes a gearbox 10, a motor 14, and a driving gear 15. The gearbox 10 is mounted on a substrate 9, and the motor 14 is mounted on the gearbox 10. The gearbox 10 extends downward with an output shaft, and the driving gear 15 is mounted on the output shaft. The driving gear 15 is matched with the driven gear 23 on the rotating frame 6. The motor 14 rotates at a high speed under the action of the power supply to drive the gearbox 10 to work. The gearbox 10 is mounted on the substrate 9, and the speed of the motor 14 is reduced to a suitable speed and drives the driving gear 15 to drive the driven gear 23. The driven gear 23 is mounted on a bearing and fixed to the rotating frame 6. The driven gear 23 is driven by the driving gear 15 to rotate so as to rotate the welding gun on the rotating frame 6. This structure ensures the accurate and stable rotation operation of the rotating frame 6 and the welding gun.

[0070] In the embodiment of the utility model, the rotating frame 6 is connected with a gun clamp 1 through an adjustment component, the welding gun is mounted on the gun clamp 1, and the adjustment component is used to adjust various angles and positions of the welding gun on the gun clamp 1, so that the tube-to-sheet welding rotating gun frame is suitable for tube-to-sheet welding of various specifications and process requirements. Specifically, the adjustment component includes a cross slide 5 for adjusting the vertical and horizontal positions of the welding gun, an axis clamp 3 for adjusting the left and right angles of the welding gun, and a connecting clamp plate 2 for adjusting the front and rear angles of the welding gun. The shaft body of the cross slide 5 is connected to the mounting hole of the rotating frame 6 by screws, the hanging shaft 4 is connected to the cross slide 5, the axis clamp 3 is installed on the hanging shaft 4, and the gun clamp 1 is installed on the connecting clamp plate 2. This structure ensures the reliability and accuracy of the various angles and positions of the welding gun on the gun clamp, thereby further improving the welding quality.

[0071] Next, the technical solution of the present utility model is described with reference to one specific detailed embodiment.

[0072] The basic structure of the tube sheet welding rotating gun rack of this detailed embodiment is as follows Figure 1 As shown, its specific structure is introduced as follows.

[0073] 1. Gun clamp, used to clamp the welding gun.

[0074] 2. Connect the clamp plate, connect the gun clamp and the axis clamp, and adjust the front and rear angles of the welding gun.

[0075] 3. Axis clamp connects the clamp plate and the hanging shaft, and realizes left and right angle adjustment of the welding gun.

[0076] 4. Hang the shaft and connect the cross slide and the shaft clamp.

[0077] 5. The cross slide connects the hanging shaft and the rotating frame, drives the welding gun to rotate around the main axis with the rotating frame, and adjusts the vertical and horizontal positions of the welding gun through the manual knob.

[0078] 6. The rotating frame connects the cross slide and the driven gear, and rotates with the driven gear around the main shaft. The upper end of the rotating frame has a stop structure that cooperates with the main shaft bearing to ensure the coaxiality between the upper end and the main shaft, and the lower end has a sleeve that cooperates with the main shaft to ensure the coaxiality between the lower end and the main shaft. Due to the large distance between the two ends and the small matching gap, the coaxial accuracy of the welding gun is high during the rotation around the main shaft.

[0079] 7. Use screws to fix the cross slide and the rotating frame.

[0080] 8. Dust cover, installed on the base plate, protects the gears and reduces mechanical damage and dust adhesion to the gears.

[0081] 9. Install the reducer, bearing seat and dust cover on the base plate.

[0082] 10. The gearbox is installed on the base plate, which reduces the speed of the electric motor to a suitable speed and drives the driving gear to drive the driven gear.

[0083] 11. The handle wheel has an eccentric pin hole, which is installed in the notch at the upper end of the pull rod and is connected to the pull rod through a pin. When the handle wheel is turned from the left (relaxed) position to the right (tightened) position, the pull rod is lifted twice the eccentric distance, and the expansion sleeve and the workpiece tube are expanded and positioned under the action of the expansion cone assembled at the lower end of the pull rod.

[0084] 12. The pin is installed in the pin hole, connecting the handle wheel and the pull rod, and transmitting the displacement of the handle wheel pin hole to the pull rod.

[0085] 13. The pull rod is installed in the spindle and has a precise sliding fit with the spindle (H8 / g7) to ensure coaxiality. The upper end is connected to the handle wheel through a pin, and the lower end is equipped with the upper and lower expansion cones with a precise sliding fit. A spring is installed between the upper and lower expansion cones. When the handle wheel is in the left position, the two expansion cones move away from each other under the push of the spring, the expansion sleeve shrinks, and the contact with the workpiece tube is loosened. A slotted nut is also installed at the lower end of the pull rod with a threaded fit. When the handle wheel rotates to the right, the nut, driven by the pull rod, overcomes the spring thrust, pushes the lower expansion cone close to the upper expansion cone, squeezes the expansion sleeve, and expands the expansion sleeve and the workpiece tube under the action of the inclined surface to complete the positioning.

[0086] 14. The electric motor is installed on the gearbox and rotates at high speed under the action of power to drive the gearbox to work.

[0087] 15. The driven gear is installed on the output shaft of the gearbox and drives the driven gear to rotate.

[0088] 16. The crossbeam ring is installed on the upper end of the main shaft and is sleeved outside the pull rod. The crossbeam is placed in the groove of the pull rod to provide a fulcrum for the handle wheel.

[0089] 17. The cone at the lower end of the main shaft bearing seat and the round nut A at the upper end of the main shaft bearing seat work together to lock it into the main shaft bearing seat. A tie rod is installed inside, and the tie rod and the main shaft slide precisely, so that the tie rod can slide axially and be fixed radially. The middle and lower part of the main shaft and the shaft sleeve are in dynamic fit (H8 / f7) to ensure that the coaxial accuracy of the rotating frame is high during the rotation around the main shaft. The lower end of the main shaft is connected to the copper cold ring through threads and stoppers, and the coaxiality is good.

[0090] 18. Round nut A, tighten the main shaft.

[0091] 19. The bearing seat is installed on the base plate, which is tightened by round nut B and fixed by set screws. A pair of deep groove ball bearings are installed on it, so that the gear and the rotating frame can rotate freely and be axially positioned. The lower end of the bearing seat is equipped with a retaining ring and round nut C. Round nut C is used to adjust the bearing shaft clearance and is tightened by set screws.

[0092] 20. Round nut B, tighten the bearing seat.

[0093] 21. Set screw, set nut B.

[0094] 22. The bearing is a deep groove ball bearing, mounted on the bearing seat, fixed in axial position by a round nut C, supporting the driven gear and the rotating frame.

[0095] 23. The driven gear is mounted on the bearing, fixed to the rotating frame, and driven by the driving gear.

[0096] 24. Retaining ring to prevent the round nut from contacting the bearing sleeve.

[0097] 25. Round nut C fixes the bearing through a retaining ring and is fixed with a set screw.

[0098] 26. Screws, connecting the rotating frame and the driven gear.

[0099] 27. The sleeve has an interference fit with the swivel frame and a dynamic fit with the spindle (H8 / f7), so that the swivel frame can rotate freely and have good radial positioning.

[0100] 28. Washer, extended copper cold ring and main shaft connection surface.

[0101] 29. Copper cooling ring, cooling the pipe end of the workpiece, reducing the possibility and degree of arc burning of the pipe end. Its upper end is connected to the main shaft through threads and stoppers, and its lower end is connected to the upper expansion cone through threads and stoppers. Due to the circumferential structure, it has good coaxiality with the connecting parts.

[0102] 30. The upper expansion cone is connected to the copper cold ring and precisely slides with the internal pull rod to provide strong support for the pull rod and make the pull rod radially stable. The upper expansion cone cooperates with the lower expansion cone to tighten or loosen the expansion sleeve and the workpiece tube under the action of the inclined surface.

[0103] 31. The spring is installed in the expansion sleeve, between the upper and lower expansion cones. When the pull rod is lowered, the upper and lower expansion cones move away from each other, thereby relaxing the expansion sleeve.

[0104] 32. The expansion sleeve has a radial elastic structure. The upper expansion cone cooperates with the lower expansion cone. Under the action of the inclined surface and the spring, it can achieve expansion or relaxation with the workpiece tube.

[0105] 33. The lower expansion cone is installed on the pull rod and precisely slides with the pull rod. When the pull rod rises, the pull rod pushes the lower expansion cone upward through the slotted nut, and the distance between the upper and lower expansion cones decreases. With the cooperation of the upper expansion cone, the expansion sleeve and the workpiece tube are expanded and positioned under the action of the inclined surface. When the pull rod descends, the lower expansion cone moves downward under the action of the spring, and the distance between the lower expansion cone and the upper expansion cone increases. Under the action of the inclined surface, the expansion sleeve and the workpiece tube are loosened.

[0106] 34. The slotted nut is connected to the pull rod through threads. Driven by the pull rod, the lower expansion cone is pushed upward. The degree of expansion can be adjusted by rotating the slotted nut.

[0107] 35. The pin is installed in the pin hole of the pull rod and the slot of the slotted nut to relatively fix the position of the slotted nut and the pull rod, that is, to fix the degree of tension of the handle wheel when it is in the tensioning position.

[0108] Among the above components, 9-22, 27-35 do not rotate with the rotating frame, and the installation of each component is based on the base plate / does not move, and is gradually installed on the base plate.

[0109] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A tube-to-sheet welding rotating gun stand, characterized in that: The tube-to-sheet welding turret frame comprises a base plate (9), a main shaft (17), a rotating assembly, and a rotating frame (6); the base plate (9) is a structure for installing a rotating bearing and a main shaft (17), and a bearing seat (19) is arranged on the base plate (9); the rotating assembly is installed on the base plate (9); the rotating frame (6) comprises a rotating plate (61), a seat plate (63), and a shaft sleeve seat (64); the bearing hole on the rotating plate (61) is matched with the bearing of the main shaft (17), the seat plate (63) is arranged below the rotating plate (61), and the shaft sleeve seat (64) is arranged on the seat plate (63); the main shaft (17) The upper part is locked in the bearing seat (19); the middle and lower parts of the main shaft (17) are matched with the sleeve seat (64) through the sleeve (27); the sleeve (27) is interference-fitted with the rotating frame (6) and dynamically matched with the main shaft (17); the rotating frame (6) is transmission-matched with the rotating assembly, and the rotating assembly drives the rotating frame (6) to rotate around the main shaft (17); the coaxiality of the upper and lower ends of the rotating frame (6) and the main shaft (17) is jointly guaranteed by the bearing seat (19) and the sleeve seat (64); the distance between the bearing seat (19) and the sleeve seat (64) is more than 3 times the diameter of the main shaft (17).

2. The tube-to-sheet welding rotating gun stand according to claim 1, characterized in that: The seat plate (63) is provided with a rib plate (62) for increasing strength.

3. The tube-to-sheet welding rotating gun stand according to claim 1, characterized in that: The distance between the bearing seat (19) and the shaft sleeve seat (64) is 80 cm to 100 cm.

4. The tube-to-sheet welding rotating gun stand according to claim 1, characterized in that: The rotating assembly comprises a gearbox (10), an electric motor (14), and a driving gear (15); the gearbox (10) is mounted on a base plate (9); the electric motor (14) is mounted on the gearbox (10); an output shaft extends downward from the gearbox (10); the driving gear (15) is mounted on the output shaft; the driving gear (15) is in transmission cooperation with a driven gear (23) on the rotating frame (6).

5. The tube-to-sheet welding rotating gun stand according to claim 1, characterized in that: The rotating frame (6) is connected to a gun clamp (1) via an adjustment component, and a welding gun is mounted on the gun clamp (1).

6. The tube-to-sheet welding rotating gun stand according to claim 5, characterized in that: The adjustment assembly comprises a cross slide (5) for adjusting the vertical and horizontal positions of the welding gun, an axis clamp (3) for adjusting the left and right angles of the welding gun, and a connecting clamp plate (2) for adjusting the front and rear angles of the welding gun. The axis body of the cross slide (5) is connected to the mounting hole of the rotating frame (6) by means of screws, the axis clamp (3) is mounted on the hanging shaft (4), the hanging shaft (4) is connected to the cross slide (5), and the gun clamp (1) is mounted on the connecting clamp plate (2).

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