An assembly fixture for welding flanges at the port of a butterfly valve.

Abstract

This utility model relates to the field of assembly fixture technology, specifically an assembly fixture for welding butterfly valve port flanges. It includes a workbench with multiple clamping blocks slidably connected to its top. Two mounting slots are formed on the inner side of each clamping block, and mounting pieces are inserted into these slots. Rubber pads are fixedly connected to the outside of the mounting pieces. A slot is formed on the inner side of each clamping block, and a locking block is engaged within this slot. The locking block slidably connects to the inside of the clamping block through the mounting pieces. A placement slot is formed on the outer side of the inner side of each clamping block. By inserting the rubber pads onto the clamping blocks using mounting pieces and engaging the mounting pieces with locking blocks, the rubber pads can be easily installed and removed. This not only reduces the labor intensity of workers but also shortens replacement time, thereby reducing labor costs, without affecting the welding efficiency of butterfly valve port flanges.

Description

Technical Field

[0001] This utility model relates to the field of assembly fixture technology, and more specifically, to an assembly fixture for welding the port flange of a butterfly valve. Background Technology

[0002] When welding the flange of a butterfly valve, an assembly fixture is generally used for limiting the position. An assembly fixture is a special tool used to fix, position and support parts during mechanical assembly or welding. It ensures that the parts maintain the correct position and posture during processing or welding through physical constraints, thereby ensuring assembly accuracy and welding quality.

[0003] A search revealed a flanged pipe support and its fixing clamp in the prior art, with patent publication number CN210524266U. The specification describes the use of bolts, which are connected to the sleeve via interlocking threads during installation. In use, a bearing seat is inserted to cause the clamp to rotate relative to the bolts. This design allows for adjustment based on the outer diameter of the flanged pipe support, making adjustment convenient and easy to operate. It solves the problem of time-consuming complex operations required by traditional adjustments, making it more practical.

[0004] However, in actual use, the contact surface between the clamp and the butterfly valve is generally buffered and protected by a rubber pad. After long-term use, the surface of the rubber pad gradually wears down, making it necessary to replace it. Since the rubber pad is usually attached to the clamp surface with glue, it is inconvenient to disassemble and replace it, resulting in low replacement efficiency, which in turn affects the welding efficiency of the butterfly valve port flange. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an assembly fixture for welding the port flange of a butterfly valve, so as to solve the problem that in the prior art, the rubber gasket is generally connected to the surface of the fixture by glue, which makes the disassembly and replacement of the rubber gasket inconvenient, resulting in low replacement efficiency and thus affecting the welding efficiency of the port flange of the butterfly valve.

[0006] To solve the above technical problems, this utility model provides the following technical solution: an assembly fixture for welding flanges at the port of a butterfly valve, comprising a workbench, a plurality of clamping blocks slidably connected to the top of the workbench, two mounting grooves being opened on the inner side of the clamping blocks, mounting pieces being inserted into the interior of the mounting grooves, rubber pads being fixedly connected to the exterior of the mounting pieces, a slot being opened on the inner side of the clamping blocks, a locking block being locked into the interior of the slot, and the locking block being slidably connected to the interior of the clamping blocks through the mounting pieces.

[0007] The clamping block has a placement groove on its inner outer side, a placement piece is fixedly connected to the side of the clamping block away from the groove, a pull rod is fixedly connected to the end of the placement piece away from the clamping block, and an elastic element is sleeved on the outside of the pull rod.

[0008] The top of the workbench has multiple sliding grooves, the bottom of the clamping block has a slot, a threaded sleeve is inserted into the slot, and a two-way lead screw is threaded into the threaded sleeve.

[0009] The outer side of the rubber pad is in contact with the inner side of the clamping block, and there are two sets of clamping blocks, each set of clamping blocks is symmetrically designed.

[0010] The card block is slidably connected inside the placement slot, the placement piece is slidably connected inside the placement slot, and the pull rod is slidably connected inside the placement slot.

[0011] One end of the elastic element is fixedly connected to the inner wall of the placement groove, and the other end of the elastic element is fixedly connected to the placement piece.

[0012] The upper inner side of the threaded sleeve slides against the outer side of the locking block, the threaded sleeve is slidably connected to the inside of the corresponding groove, and the bidirectional lead screw is rotatably connected to the inside of the groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In the above solution, the rubber gasket is conveniently installed and removed by inserting the mounting plate onto the clamping block and using the locking block to lock the mounting plate. This not only reduces the labor intensity of workers but also reduces replacement time, thereby reducing labor costs, and does not affect the welding efficiency of the butterfly valve port flange. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a front view of the present invention;

[0017] Figure 3 For the present utility model Figure 2 Cross-sectional view of the structure at point AA;

[0018] Figure 4 For the present utility model Figure 3 Enlarged view of the structure at point A in the middle.

[0019] [Figure Labels]

[0020] 1. Workbench; 2. Clamping block; 3. Mounting slot; 4. Rubber pad; 5. Mounting piece; 6. Slot; 7. Clamping block; 8. Placement slot; 9. Placement piece; 10. Elastic element; 11. Pull rod; 12. Threaded sleeve; 13. Slot; 14. Slide groove; 15. Double-acting lead screw. Detailed Implementation

[0021] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0022] Example 1: Please refer to Figures 1 to 4 This utility model provides a technical solution: an assembly fixture for welding flanges at the port of a butterfly valve, including a workbench 1. Multiple clamping blocks 2 are slidably connected to the top of the workbench 1. The clamping blocks 2 are in two sets, each set being symmetrically designed, allowing the clamping blocks 2 to clamp the butterfly valve and flange respectively. Two mounting grooves 3 are opened on the inner side of each clamping block 2, and mounting pieces 5 are inserted into the inside of the mounting grooves 3, providing installation space for the mounting pieces 5. A rubber pad 4 is fixedly connected to the outside of the mounting piece 5, with the outer side of the rubber pad 4 fitting against the inner side of the clamping block 2, resulting in high installation stability of the rubber pad 4. A slot 6 is opened on the inner side of the clamping block 2, and a locking block 7 is engaged inside the slot 6. The locking block 7 passes through the mounting piece 5 and is slidably connected inside the clamping block 2, allowing for convenient installation and removal of the rubber pad 4.

[0023] When the rubber pad 4 needs to be replaced, by pulling the locking block 7 to the side away from the locking groove 6, the locking block 7 can be disengaged from the inside of the mounting piece 5. Then, the rubber pad 4 can be pulled away from the clamping block 2, so that the rubber pad 4 can drive the mounting piece 5 to disengage from the inside of the clamping block 2, making the rubber pad 4 easy to remove. Conversely, by attaching the rubber pad 4 to the clamping block 2 and inserting the mounting piece 5 into the inside of the mounting groove 3, the locking block 7 can be slid into the inside of the locking groove 6, so that the locking block 7 can penetrate the mounting piece 5 and engage with the inside of the locking groove 6, so that the mounting piece 5 can be limited, thus making the rubber pad 4 easy to install.

[0024] Example 2: Based on Example 1, in order to facilitate the pulling of the locking block 7, a placement groove 8 is provided on the inner and outer sides of the clamping block 2. The locking block 7 is slidably connected to the inside of the placement groove 8, which provides space for the locking block 7 to move. A placement piece 9 is fixedly connected to the side of the locking block 7 away from the locking groove 6. The placement piece 9 is slidably connected to the inside of the placement groove 8, which limits the placement piece 9 so that it will not deviate when sliding. A pull rod 11 is fixedly connected to the end of the placement piece 9 away from the locking block 7. The pull rod 11 is slidably connected to the inside of the placement groove 8, which limits the pull rod 11 so that it can slide smoothly. An elastic element 10 is sleeved on the outside of the pull rod 11. One end of the elastic element 10 is fixedly connected to the inner wall of the placement groove 8, and the other end of the elastic element 10 is fixedly connected to the placement piece 9.

[0025] When the locking block 7 needs to be pulled, the pull rod 11 is pulled to move the placement piece 9 outward, which in turn causes the placement piece 9 to compress the elastic element 10 and deform, thus driving the locking block 7 into the placement groove 8. Conversely, by releasing the pull rod 11, the elastic element 10 is reset, which in turn pushes the placement piece 9 inward, so that the placement piece 9 pushes the locking block 7 through the mounting piece 5 and engages with the inside of the groove 6.

[0026] Example 3: Based on Example 2, in order to facilitate the replacement of the rubber pad 4 to accommodate butterfly valves of different sizes, the top of the workbench 1 is provided with multiple sliding grooves 14, and the bottom of the clamping block 2 is provided with a slot 13. A threaded sleeve 12 is inserted into the slot 13, and the slot 13 provides installation space for the threaded sleeve 12. The upper inner side of the threaded sleeve 12 slides against the outer side of the clamping block 7, so that the clamping block 7 can limit the threaded sleeve 12. The threaded sleeve 12 is slidably connected to the inside of the corresponding sliding groove 14. The sliding groove 14 limits the threaded sleeve 12, allowing the threaded sleeve 12 to slide smoothly. The threaded sleeve 12 is internally threaded with a double-acting screw 15, which is used to drive the threaded sleeve 12 to move. The double-acting screw 15 is rotatably connected to the inside of the sliding groove 14, and the sliding groove 14 limits the double-acting screw 15, allowing the double-acting screw 15 to rotate smoothly.

[0027] When it is necessary to move the clamping block 2, select the required model of clamping block 2, insert the clamping block 2 into the threaded sleeve 12, and use the locking block 7 to limit the threaded sleeve 12 so that the threaded sleeve 12 can be connected to the clamping block 2. Then, by rotating the bidirectional screw 15, the threaded sleeves 12 on the front and rear sides can be moved to the same side, so that the threaded sleeve 12 can drive the clamping block 2 to clamp the flange of the butterfly valve port through the slot 13.

[0028] The working process of this utility model is as follows:

[0029] When clamping the flange at the butterfly valve port is required, the appropriate clamping block 2 is selected, and the pull rod 11 is pulled. This causes the pull rod 11 to move the placement piece 9 outward, which in turn causes the placement piece 9 to compress the elastic element 10, causing it to deform and drive the locking block 7 into the placement groove 8. The rubber pad 4 then fits against the clamping block 2, and the mounting piece 5 is inserted into the mounting groove 3. The clamping block 2 is then engaged with the threaded sleeve 12. Releasing the pull rod 11 allows the elastic element 10 to reset, pushing the placement piece 9 inward, thus allowing the placement piece 9 to push the locking block 7 through. The mounting plate 5 engages with the slot 6, limiting the mounting plate 5 and facilitating the installation of the rubber gasket 4. This allows the threaded sleeve 12 to connect with the clamping block 2. By rotating the bidirectional screw 15, the threaded sleeves 12 on both sides can be moved to the same side, allowing the threaded sleeves 12 to clamp the clamping block 2 through the slot 13, thus providing high flexibility. Conversely, the rubber gasket 4 can be disassembled from the clamping block 2, reducing the labor intensity of workers, shortening replacement time, lowering labor costs, and without affecting the welding efficiency of the butterfly valve port flange.

[0030] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0031] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An assembly fixture for butterfly valve port flange welding, characterized by, Includes a workbench (1), the top of which is slidably connected to multiple clamping blocks (2), the inner side of which has two mounting slots (3), the inside of which is inserted into the mounting slots (3) and the outside of which is fixedly connected to a rubber pad (4), the inner side of which has a slot (6), the inside of which is engaged with a locking block (7), the locking block (7) passing through the mounting block (5) and slidably connected to the inside of the clamping block (2).

2. The assembly fixture for welding of butterfly valve port flanges as claimed in claim 1 wherein, The clamping block (2) has a placement groove (8) on its inner outer side. The side of the clamping block (7) away from the groove (6) is fixedly connected to a placement piece (9). The end of the placement piece (9) away from the clamping block (7) is fixedly connected to a pull rod (11). An elastic element (10) is sleeved on the outside of the pull rod (11).

3. The assembly fixture for welding of butterfly valve port flanges as claimed in claim 2 wherein, The top of the workbench (1) is provided with multiple sliding grooves (14), and the bottom of the clamp (2) is provided with a slot (13). A threaded sleeve (12) is inserted into the slot (13), and a two-way lead screw (15) is threaded into the threaded sleeve (12).

4. The assembly fixture for welding of butterfly valve port flanges as claimed in claim 2 wherein, The outer side of the rubber pad (4) is in contact with the inner side of the clamping block (2). The clamping block (2) consists of two sets, and each set of clamping blocks (2) is symmetrically designed.

5. The assembly fixture for welding the port flange of a butterfly valve according to claim 2, characterized in that, The card block (7) is slidably connected inside the placement slot (8), the placement piece (9) is slidably connected inside the placement slot (8), and the pull rod (11) is slidably connected inside the placement slot (8).

6. The assembly fixture for welding the port flange of a butterfly valve according to claim 3, characterized in that, One end of the elastic element (10) is fixedly connected to the inner wall of the placement groove (8), and the other end of the elastic element (10) is fixedly connected to the placement piece (9).

7. The assembly fixture for welding the port flange of a butterfly valve according to claim 3, characterized in that, The upper inner side of the threaded sleeve (12) slides against the outer side of the locking block (7), the threaded sleeve (12) is slidably connected to the inside of the corresponding position groove (14), and the bidirectional lead screw (15) is rotatably connected to the inside of the groove (14).

Images