An adjustable pressure vessel tube sheet welding tool

Abstract

The utility model provides a kind of adjustable pressure vessel tube plate welding tool, including, bearing frame, the top surface of bearing frame is fixedly connected with net plate, adjusting assembly, the adjusting assembly includes cylinder, support frame, baffle and clamping piece, the outer periphery of cylinder and the bearing frame are fixedly connected, the support frame is hinged by pin shaft and the cylinder, the top end of baffle and the support frame are fixedly connected, the clamping piece is located at the bottom end of the support frame, the utility model relates to welding tool technical field, by clamping piece cooperation baffle, pressure vessel tube and pressure vessel plate are fixed, rotating support frame drives pressure vessel tube and pressure vessel plate to rotate in the outer wall of cylinder, and then the position of pressure vessel tube and pressure vessel plate not welded exposes, prevent the welding position of pressure vessel tube and pressure vessel plate from being shielded, to facilitate to pressure vessel tube and pressure vessel plate are annularly welded.

Description

Technical Field

[0001] This utility model relates to the field of welding tooling technology, and in particular to an adjustable pressure vessel tube sheet welding tooling. Background Technology

[0002] Pressure vessel pipes are pipe fittings used to connect pressure vessels to external equipment or pipelines. Their main function is to transfer the medium inside the pressure vessel to other equipment or systems. Pressure vessel pipes are usually made of seamless steel pipes or welded steel pipes to ensure their reliability and safety under harsh conditions such as high pressure and high temperature.

[0003] When welding pressure vessel pipes and pressure vessel plates, welding fixtures are required for pre-fixation. The welding position of the pressure vessel pipes and pressure vessel plates is circular. The bottom of the pressure vessel pipes and pressure vessel plates is close to the welding fixtures, which obstructs the welding position and makes it inconvenient to use a welding gun for welding. Utility Model Content

[0004] The purpose of this utility model is to provide an adjustable pressure vessel tube sheet welding fixture, which solves the problem that the bottom of the pressure vessel tube and pressure vessel plate is blocked due to their proximity to the welding fixture.

[0005] This utility model provides: an adjustable pressure vessel tube sheet welding fixture, comprising:

[0006] A support frame, the top surface of which is fixedly connected to a mesh plate;

[0007] An adjustment assembly is used to simultaneously flip the pressure vessel tube sheet to perform circumferential welding on the pressure vessel tube sheet.

[0008] The adjustment assembly includes a cylinder, a support frame, a baffle, and a clamping component;

[0009] The outer periphery of the cylinder is fixedly connected to the support frame. The support frame is hinged to the cylinder via a pin. A positioning pin is provided in the support frame. The positioning pin is connected to a threaded hole on the cylinder. The top end of the baffle is fixedly connected to the support frame. The clamping member is located at the bottom end of the support frame. The clamping member and the baffle are arranged parallel to each other. The clamping member is used to fix the pressure vessel tube so that the pressure vessel plate on the side wall of the baffle and the pressure vessel tube are pressed together.

[0010] The support frame is machined in an "I" shape.

[0011] Preferably, the clamping component includes a mounting frame, a double-threaded rod, a slider, and a clamping plate;

[0012] The top of the mounting frame is fixedly connected to the support frame. The mounting frame and the baffle are arranged in parallel. The double-threaded rod is connected to the mounting frame through a bearing. The slider and the double-threaded rod are internally threaded. The clamping plate is fixedly connected to the outer periphery of the slider. The protruding end of the clamping plate is inserted into the groove of the mounting frame. A textured plate is fixedly connected in the clamping plate. The textured plate is used to increase the friction between the plate and the pressure vessel tube.

[0013] Preferably, the baffle is provided with a clamping element;

[0014] The clamping component includes a screw, a handwheel, and a fixed disc;

[0015] The screw and the baffle are internally threaded together. One end of the screw is fixedly connected to a handwheel, and the other end of the screw is fixedly connected to a fixed plate.

[0016] Preferably, a lifting assembly is fixedly connected to the bottom end of the support frame, and the lifting assembly is used to adjust the working height of the support frame;

[0017] The lifting assembly includes a connecting block, a telescopic component, and a base;

[0018] The connecting block and the support frame are fixedly connected, the output end of the telescopic component is connected to the connecting block, and the bottom end of the telescopic component is fixedly connected to the base.

[0019] Preferably, the telescopic component is a hydraulic rod.

[0020] Preferably, the support frame is equipped with a cleaning component, which is used to grind the welding surface of the pressure vessel tube sheet;

[0021] The cleaning components include a motor and a grinding wheel;

[0022] The outer periphery of the motor is connected to the support frame, and the grinding wheel is fixedly connected to the output end of the motor.

[0023] This utility model provides an adjustable pressure vessel tube sheet welding fixture:

[0024] By using a cylinder, support frame, positioning pin, baffle, clamping parts, etc., the pressure vessel pipe and pressure vessel plate are fixed by the clamping parts and the baffle. After the initial welding of the contact position of the pressure vessel pipe and pressure vessel plate, the support frame is rotated on the outer wall of the cylinder to drive the pressure vessel pipe and pressure vessel plate to rotate. The positioning pin is used to fix the position of the support frame on the outer wall of the cylinder, so that the unwelded position of the pressure vessel pipe and pressure vessel plate is exposed, preventing the welding position of the pressure vessel pipe and pressure vessel plate from being blocked, so as to facilitate the circumferential welding of the pressure vessel pipe and pressure vessel plate. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model.

[0026] Figure 2 This is an assembly drawing of the pressure vessel tube sheet and the overall mechanism in this utility model.

[0027] Figure 3 This is a structural schematic diagram of the cylinder, support frame, positioning pin, and baffle in this utility model.

[0028] Figure 4 This is a structural diagram of the connecting block, telescopic component, and base in this utility model.

[0029] Figure 5 This is a schematic diagram of the structure of the double-threaded rod, slider, clamping plate, and textured plate in this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1-Bearing frame, 11-Mesh plate, 12-Debris removal parts, 121-Motor, 122-Grinding wheel, 2-Adjusting assembly, 21-Cylinder, 22-Support frame, 221-Positioning pin, 23-Baffle, 231-Clamping parts, 231a-Screw, 231b-Handwheel, 231c-Fixing plate, 24-Clamping parts, 241-Mounting frame, 242-Double-ended threaded rod, 243-Slider, 244-Clamping plate, 244a-Grinding plate, 3-Lifting assembly, 31-Connecting block, 32-Telescopic parts, 33-Base. Detailed Implementation

[0032] In this embodiment, as Figure 1 and Figure 5 As shown, an adjustable pressure vessel tube sheet welding fixture includes a support frame 1, a mesh plate 11 fixedly connected to the top surface of the support frame 1, and an adjustment assembly 2. The adjustment assembly 2 is used to simultaneously flip the pressure vessel tube sheet to perform circumferential welding on the pressure vessel tube sheet. The adjustment assembly 2 includes a cylinder 21, a support frame 22, a baffle 23, and a clamping member 24. The outer periphery of the cylinder 21 is fixedly connected to the support frame 1. The support frame 22 is hinged to the cylinder 21 by a pin. A positioning pin 221 is disposed in the support frame 22 and connected to a threaded hole on the cylinder 21. The top end of the baffle 23 is fixedly connected to the support frame 22. The clamping member 24 is located at the bottom end of the support frame 22. The clamping member 24 and the baffle 23 are arranged in parallel. The clamping member 24 is used to fix the pressure vessel tube so that the pressure vessel plate on the side wall of the baffle 23 and the pressure vessel tube abut against each other.

[0033] The support frame 22 is machined into an "I" shape.

[0034] Therefore, the pressure vessel pipe and pressure vessel plate are fixed by the clamping member 24 in conjunction with the baffle 23. After the contact position of the pressure vessel pipe and pressure vessel plate is initially welded, the support frame 22 is rotated on the outer wall of the cylinder 21. The support frame 22 drives the pressure vessel pipe and pressure vessel plate to rotate. The position of the support frame 22 on the outer wall of the cylinder 21 is fixed by the positioning pin 221, so that the unwelded position of the pressure vessel pipe and pressure vessel plate is exposed, so as to facilitate the circumferential welding of the pressure vessel pipe and pressure vessel plate.

[0035] Specifically, the support frame 1 is right-angled, the mesh plate 11 is designed to place welding tools, the cylinder 21 is hollow, the support frame 22 rotates around the outer circumference of the cylinder 21, and threaded holes that match the positioning pins 221 are distributed in a ring on both sides of the cylinder 21. The corresponding surfaces of the baffle 23 and the clamping member 24 are used to place the pressure vessel plate.

[0036] In some embodiments, such as Figure 3 and Figure 5 As shown, the clamping component 24 includes a mounting frame 241, a double-threaded rod 242, a slider 243, and a clamping plate 244. The top end of the mounting frame 241 is fixedly connected to the support frame 22. The mounting frame 241 and the baffle 23 are arranged in parallel. The double-threaded rod 242 is connected to the mounting frame 241 through a bearing. The slider 243 is internally threaded to the double-threaded rod 242. The clamping plate 244 is fixedly connected to the outer periphery of the slider 243. The protruding end of the clamping plate 244 is inserted into the groove of the mounting frame 241. A textured plate 244a is fixedly connected to the clamping plate 244. The textured plate 244a is used to increase the friction between the clamping plate and the pressure vessel tube.

[0037] Specifically, the mounting frame 241 is U-shaped, and the rotation of the double-threaded rod 242 can drive the two clamping plates 244 to move towards each other. Each clamping plate 244 is provided with two textured plates 244a, and the included angle between the two textured plates 244a in the clamping plate 244 is 90 degrees. The mounting frame 241 is machined with a sliding groove that matches the protruding end of the clamping plate 244.

[0038] In some embodiments, such as Figure 3 As shown, a clamping member 231 is provided in the baffle 23. The clamping member 231 includes a screw 231a, a handwheel 231b and a fixing plate 231c. The screw 231a and the baffle 23 are internally threaded. One end of the screw 231a is fixedly connected to the handwheel 231b, and the other end of the screw 231a is fixedly connected to the fixing plate 231c.

[0039] Specifically, the screw 231a moves laterally in the baffle 23, the handwheel 231b is used to drive the screw 231a to rotate, and the fixed plate 231c is machined with stripes to increase the friction between the fixed plate 231c and the pressure vessel plate.

[0040] In some embodiments, such as Figure 4 As shown, a lifting assembly 3 is fixedly connected to the bottom end of the support frame 1. The lifting assembly 3 is used to adjust the working height of the support frame 1. The lifting assembly 3 includes a connecting block 31, a telescopic member 32 and a base 33. The connecting block 31 is fixedly connected to the support frame 1, the output end of the telescopic member 32 is connected to the connecting block 31, and the bottom end of the telescopic member 32 is fixedly connected to the base 33.

[0041] Specifically, there are two connecting blocks 31, which are symmetrically distributed about the support frame 1. The telescopic component 32 is located between the base 33 and the connecting block 31. The base 33 is used to support the overall mechanism. By adjusting the height of the support frame 1, workers of different heights can weld the pressure vessel tube sheet.

[0042] In some embodiments, such as Figure 4 As shown, the telescopic component 32 is a hydraulic rod.

[0043] Specifically, the telescopic component 32 adopts a hydraulic rod design, which facilitates the up and down movement of the support frame 1. The telescopic component 32 can also be replaced by other telescopic structures.

[0044] In some embodiments, such as Figure 2 As shown, the support frame 1 is equipped with a cleaning component 12, which is used to grind the welded surface of the pressure vessel tube sheet. The cleaning component 12 includes a motor 121 and a grinding wheel 122. The outer periphery of the motor 121 is connected to the support frame 1, and the grinding wheel 122 is fixedly connected to the output end of the motor 121.

[0045] Motor 121 is a servo motor. When the grinding wheel 122 rotates, it can grind the welding surface of the pressure vessel tube sheet to improve the welding effect of the pressure vessel tube sheet. In addition, the grinding wheel 122 can also be replaced with other grinding materials, such as sandpaper.

[0046] The working principle of this application is illustrated below with a preferred embodiment:

[0047] First, the telescopic component 32 is activated, causing the connecting block 31 to move. The connecting block 31 then raises the support frame 1, adjusting its height to facilitate welding work. The welded ends of the pressure vessel plate and pressure vessel pipe are ground using a rotating grinding wheel 122. The pressure vessel pipe is then placed between two clamping plates 244. Rotating the double-threaded rod 242 in the mounting frame 241 moves the two clamping plates 244 towards each other, clamping the pressure vessel pipe with the abrasive plates 244a located within the clamping plates 244. The pressure vessel plate is then placed... The pressure vessel tube is welded at the end, and then the screw 231a is rotated by the handwheel 231b. The screw 231a drives the fixed plate 231c to move to clamp the pressure vessel plate. Then, the contact position of the pressure vessel tube and the pressure vessel plate is welded. The support frame 22 is rotated on the outer wall of the cylinder 21. The support frame 22 drives the pressure vessel tube and the pressure vessel plate to rotate. The position of the support frame 22 on the outer wall of the cylinder 21 is fixed by the positioning pin 221, so that the unwelded position of the pressure vessel tube and the pressure vessel plate is exposed, so as to facilitate the circumferential welding of the pressure vessel tube and the pressure vessel plate.

Claims

1. An adjustable pressure vessel tube sheet welding fixture, characterized in that, include: The top surface of the support frame (1) is fixedly connected to the mesh plate (11). Adjustment component (2), the adjustment component (2) is used to simultaneously flip the pressure vessel tube sheet to perform circumferential welding on the pressure vessel tube sheet; The adjustment assembly (2) includes a cylinder (21), a support frame (22), a baffle (23), and a clamping member (24). The outer periphery of the cylinder (21) is fixedly connected to the bearing frame (1). The support frame (22) is hinged to the cylinder (21) by a pin. A positioning pin (221) is provided in the support frame (22). The positioning pin (221) is connected to the threaded hole on the cylinder (21). The top end of the baffle (23) is fixedly connected to the support frame (22). The clamping member (24) is located at the bottom end of the support frame (22). The clamping member (24) and the baffle (23) are arranged in parallel. The clamping member (24) is used to fix the pressure vessel tube so that the pressure vessel plate on the side wall of the baffle (23) and the pressure vessel tube abut against each other. The support frame (22) is machined into an "I" shape.

2. The adjustable pressure vessel tube sheet welding fixture according to claim 1, characterized in that, The clamping member (24) includes a mounting frame (241), a double-threaded rod (242), a slider (243), and a clamping plate (244). The top of the mounting frame (241) is fixedly connected to the support frame (22). The mounting frame (241) and the baffle (23) are arranged in parallel. The double-threaded rod (242) is connected to the mounting frame (241) through a bearing. The slider (243) is internally threaded to the double-threaded rod (242). The clamping plate (244) is fixedly connected to the outer periphery of the slider (243). The protruding end of the clamping plate (244) is inserted into the groove of the mounting frame (241). A textured plate (244a) is fixedly connected in the clamping plate (244). The textured plate (244a) is used to increase the friction between the plate and the pressure vessel tube.

3. The adjustable pressure vessel tube sheet welding fixture according to claim 1, characterized in that, The baffle (23) is provided with a clamping element (231); The clamping member (231) includes a screw (231a), a handwheel (231b), and a fixing plate (231c). The screw (231a) and the baffle (23) are internally threaded together. One end of the screw (231a) is fixedly connected to a handwheel (231b), and the other end of the screw (231a) is fixedly connected to a fixed disc (231c).

4. The adjustable pressure vessel tube sheet welding fixture according to claim 1, characterized in that, The bottom end of the support frame (1) is fixedly connected to a lifting component (3), which is used to adjust the working height of the support frame (1); The lifting assembly (3) includes a connecting block (31), a telescopic component (32), and a base (33); The connecting block (31) and the support frame (1) are fixedly connected, the output end of the telescopic member (32) is connected to the connecting block (31), and the bottom end of the telescopic member (32) is fixedly connected to the base (33).

5. The adjustable pressure vessel tube sheet welding fixture according to claim 4, characterized in that, The telescopic component (32) is a hydraulic rod.

6. The adjustable pressure vessel tube sheet welding fixture according to claim 1, characterized in that, The support frame (1) is equipped with a cleaning component (12), which is used to grind the welding surface of the pressure vessel tube sheet; The cleaning component (12) includes a motor (121) and a grinding wheel (122); The outer periphery of the motor (121) is connected to the support frame (1), and the grinding wheel (122) is fixedly connected to the output end of the motor (121).

Images