Fixing clamp for large flange plate production and machining

Abstract

The utility model relates to the technical field of flange plate clamping, in particular to a fixing clamp for producing and machining a large flange plate. A rotating shaft is fixed to the surface of a workbench, an upper ring is fixed to the upper end of a lower ring, a connecting sleeve is movably arranged between the upper ring and the lower ring, a clamping rod is movably arranged in the connecting sleeve, a clamping roller is fixed to the end of the clamping rod, and a flange plate is arranged on the outer surface of the clamping roller. The screw rod can drive the nut to move in the axis direction of the screw rod when the screw rod rotates, the nut moves to be farther away from the axis of the lower ring, the larger the moving distance of the nut is, the larger the rotating amplitude of the lower ring is, and when the flange plate is clamped by the multiple sets of clamping rollers, clamping and fixing of the flange plate on the workbench are achieved. The distance between the clamping roller and the axis of the lower ring in the clamping mode can be adjusted by rotating the screw rod so as to adapt to flange plates of different sizes, and the adjustability of the clamp is achieved when the flange plates are clamped.

Description

Technical Field

[0001] The utility model relates to the technical field of flange clamping, in particular to a fixing fixture for producing and processing large flanges. Background Art

[0002] A flange is a disc-shaped metal body with fixing holes around it, which is used to connect pipes, valves and other equipment.

[0003] In the existing technology, flanges are common metal parts in the machinery industry. Their main function is connection. They are usually used to connect two sets of pipes to form a closed piping system. The interface connected by flanges has better sealing effect and can be easily disassembled and installed.

[0004] However, when processing the flange, its clamping and fixing on the workbench is particularly important, and the existing flange clamping method is not convenient for reasonable extension adjustment of the clamping area of ​​its own end according to needs, resulting in poor convenience when clamping and using it. Utility Model Content

[0005] The purpose of the utility model is to provide a fixing fixture for the production and processing of a large flange, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a fixing fixture for the production and processing of a large flange, the fixing fixture for the production and processing of a large flange comprising:

[0007] A workbench, wherein a screw is movably provided on the surface of the workbench, a nut is sleeved on the outer surface of the screw, a fixing block is fixed on the outer surface of the nut, and a rotating shaft is fixed on the surface of the workbench;

[0008] The lower ring has an upper ring fixed on its upper end, a connecting sleeve is movably provided between the upper and lower rings, a clamping rod is movably provided inside the connecting sleeve, a clamping roller is fixed on the end of the clamping rod, and a flange is provided on the outer surface of the clamping roller.

[0009] Preferably, a connecting groove is provided on the surface of the workbench, an annular groove is provided on the inner wall of the connecting groove, a connecting block is fixed on the bottom of the lower ring, and an annular block is fixed on the surface of the connecting block.

[0010] Preferably, the annular block corresponds to and is clamped in the annular groove, and is movably connected. The annular groove has the same diameter as the annular block, the connecting groove has the same diameter as the connecting block, and the diameter of the annular groove is larger than the diameter of the connecting groove.

[0011] Preferably, a support block is fixed on the surface of the workbench, a through hole is provided on the surface of the support block, a positioning groove is provided on the inner wall of the through hole, and a positioning block is fixed on the outer surface of the end of the screw.

[0012] Preferably, the positioning block corresponds to and is locked in the positioning groove, and is movably connected to the positioning groove. The diameter of the positioning groove is the same as that of the positioning block, and the diameter of the positioning groove is larger than the diameter of the through hole.

[0013] Preferably, a support hole is opened on the surface of the upper ring, and a support rod is fixed on the upper surface of the connecting sleeve. The support rod corresponds to the support hole and is clamped to form a movably connected connection.

[0014] Preferably, a positioning hole is provided at the end of the clamping rod opposite to the clamping roller, the positioning hole corresponds to and is clamped with the rotating shaft to be movably connected, and the fixing block is fixed to the surface of the lower ring.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] Due to the thread fit and the nut being restricted by the fixed block and unable to rotate, the rotation of the screw will drive the nut to move along its axial direction, and the movement of the nut will get farther and farther away from the axis of the lower ring. Therefore, the greater the distance the nut moves, the greater the amplitude of rotation of the lower ring. When multiple sets of clamping rollers clamp the flange, the flange is clamped and fixed on the workbench. The distance between the clamping rollers and the axis of the lower ring in this clamping method can be adjusted by rotating the screw to adapt to flanges of different sizes, thereby realizing the adjustability of the fixture when clamping the flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the workbench structure of the present utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the drive assembly of the utility model;

[0020] Figure 4 This is an exploded schematic diagram of the clamping assembly structure of the utility model;

[0021] Figure 5 This is a schematic cross-sectional view of the support assembly structure of the present invention.

[0022] In the figure: 1. Workbench; 2. Connecting sleeve; 3. Upper ring; 4. Clamping rod; 5. Flange; 6. Nut; 7. Screw; 8. Rotating shaft; 9. Support block; 10. Through hole; 11. Positioning groove; 12. Annular groove; 13. Connecting groove; 14. Positioning block; 15. Fixing block; 16. Clamping roller; 17. Positioning hole; 18. Support rod; 19. Lower ring; 20. Support hole; 21. Annular block; 22. Connecting block. DETAILED DESCRIPTION

[0023] In order to clearly and completely describe the objectives and technical solutions of the present invention and make the advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1: Please refer to Figures 1 to 5 The utility model provides a technical solution: a fixing fixture for the production and processing of large flanges, a screw rod 7 is movably provided on the surface of a workbench 1, a nut 6 is sleeved on the outer surface of the screw rod 7, and a fixing block 15 is fixed on the outer surface of the nut 6. Due to the threaded fit and the nut 6 is restricted by the fixing block 15 and cannot rotate, the screw rod 7 will drive the nut 6 to move along its axial direction when it rotates, and a rotating shaft 8 is fixed on the surface of the workbench 1.

[0025] An upper ring 3 is fixed to the upper end of the lower ring 19, and a connecting sleeve 2 is movably provided between the upper ring 3 and the lower ring 19. A clamping rod 4 is movably provided inside the connecting sleeve 2. When the lower ring 19 rotates, the clamping rod 4 will be pulled toward the axis of the lower ring 19 through the connecting sleeve 2 to rotate around the rotating shaft 8. A clamping roller 16 is fixed to the end of the clamping rod 4, and a flange 5 is provided on the outer surface of the clamping roller 16. The distance between the clamping roller 16 and the axis of the lower ring 19 in this clamping method can be adjusted by rotating the screw 7 to adapt to flanges 5 of different sizes, thereby realizing the adjustability of the clamp when clamping the flange 5.

[0026] On the basis of Example 1, in order to achieve the adjustability of the clamp when clamping the flange 5, a connecting groove 13 is opened on the surface of the workbench 1, an annular groove 12 is opened on the inner wall of the connecting groove 13, a connecting block 22 is fixed to the bottom of the lower ring 19, and an annular block 21 is fixed on the surface of the connecting block 22.

[0027] The annular block 21 corresponds to and is clamped in the annular groove 12, and is movably connected. The diameter of the annular groove 12 is the same as that of the annular block 21, and the diameter of the connecting groove 13 is the same as that of the connecting block 22. The diameter of the annular groove 12 is larger than the diameter of the connecting groove 13, so the lower ring 19 will not be separated from the workbench 1, and a movable connection is achieved between the lower ring 19 and the workbench 1.

[0028] A support block 9 is fixed on the surface of the workbench 1 , a through hole 10 is opened on the surface of the support block 9 , a positioning groove 11 is opened on the inner wall of the through hole 10 , and a positioning block 14 is fixed on the outer surface of the end of the screw rod 7 .

[0029] The positioning block 14 corresponds to and is locked in the positioning groove 11, and is movably connected. The diameter of the positioning groove 11 is the same as the diameter of the positioning block 14. The diameter of the positioning groove 11 is larger than the diameter of the through hole 10, so the screw 7 will not be separated from the support block 9, which plays a positioning role in the rotation of the screw 7 in the through hole 10.

[0030] A support hole 20 is opened on the surface of the upper ring 3, and a support rod 18 is fixed on the upper surface of the connecting sleeve 2. The support rod 18 corresponds to the support hole 20 and is clamped to form a movably connected connection.

[0031] A positioning hole 17 is provided at the end of the clamping rod 4 opposite to the clamping roller 16. The positioning hole 17 corresponds to the rotating shaft 8 and is clamped, forming a movably connected connection. The fixing block 15 is fixed to the surface of the lower ring 19. The rotation of the lower ring 19 will pull the clamping rod 4 toward the axis of the lower ring 19 through the connecting sleeve 2 to rotate around the rotating shaft 8, so that the clamping roller 16 moves toward the surface of the flange 5.

[0032] The specific scheme is as follows: first, the flange 5 is placed on the workbench 1, and the flange 5 is located at the inner position of the upper and lower rings, and then the screw 7 is rotated. Due to the threaded fit and the nut 6 is restricted by the fixed block 15 and cannot rotate, the screw 7 will drive the nut 6 to move along its axial direction when it rotates. The movement of the nut 6 will push the lower ring 19 to rotate through the fixed block 15, and the movement of the nut 6 will be farther and farther away from the axis of the lower ring 19, so the greater the distance the nut 6 moves, the greater the rotation amplitude of the lower ring 19. The rotation of the lower ring 19 will pull the clamping rod 4 to the axis of the lower ring 19 through the connecting sleeve 2 to rotate around the rotating shaft 8, so that the clamping roller 16 moves toward the surface of the flange 5. When multiple groups of clamping rollers 16 clamp the flange 5, the flange 5 is clamped and fixed on the workbench 1. The distance between the clamping roller 16 and the axis of the lower ring 19 of this clamping method can be adjusted by rotating the screw 7, so as to adapt to flanges 5 of different sizes, thereby realizing the adjustability of the clamp when clamping the flange 5.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing fixture for the production and processing of large flanges, characterized by: The fixing fixture for producing and processing the large flange includes: A workbench (1), wherein a screw (7) is movably provided on the surface of the workbench (1), a nut (6) is sleeved on the outer surface of the screw (7), a fixing block (15) is fixed on the outer surface of the nut (6), and a rotating shaft (8) is fixed on the surface of the workbench (1); A lower ring (19) is provided, wherein an upper ring (3) is fixed to the upper end of the lower ring (19), a connecting sleeve (2) is movably provided between the upper ring (3) and the lower ring (19), a clamping rod (4) is movably provided inside the connecting sleeve (2), a clamping roller (16) is fixed to the end of the clamping rod (4), and a flange (5) is provided on the outer surface of the clamping roller (16).

2. The fixing fixture for producing and processing a large flange according to claim 1, characterized in that: A connecting groove (13) is provided on the surface of the workbench (1), an annular groove (12) is provided on the inner wall of the connecting groove (13), a connecting block (22) is fixed on the bottom of the lower ring (19), and an annular block (21) is fixed on the surface of the connecting block (22).

3. The fixing fixture for producing and processing a large flange according to claim 2, characterized in that: The annular block (21) corresponds to and is locked with the annular groove (12) to be movably connected. The annular groove (12) has the same diameter as the annular block (21). The connecting groove (13) has the same diameter as the connecting block (22). The diameter of the annular groove (12) is larger than the diameter of the connecting groove (13).

4. The fixing fixture for producing and processing a large flange according to claim 3 is characterized in that: A support block (9) is fixed on the surface of the workbench (1), a through hole (10) is provided on the surface of the support block (9), a positioning groove (11) is provided on the inner wall of the through hole (10), and a positioning block (14) is fixed on the outer surface of the end of the screw rod (7).

5. The fixing fixture for producing and processing a large flange according to claim 4, characterized in that: The positioning block (14) corresponds to and is locked with the positioning groove (11) to be movably connected, and the diameter of the positioning groove (11) is the same as that of the positioning block (14), and the diameter of the positioning groove (11) is larger than the diameter of the through hole (10).

6. The fixing fixture for producing and processing a large flange according to claim 5, characterized in that: A support hole (20) is provided on the surface of the upper ring (3), and a support rod (18) is fixed on the upper surface of the connecting sleeve (2). The support rod (18) corresponds to the support hole (20) and is clamped to form a movably connected connection.

7. The fixing fixture for producing and processing a large flange according to claim 6, characterized in that: A positioning hole (17) is provided at the end of the clamping rod (4) opposite to the clamping roller (16). The positioning hole (17) corresponds to and is clamped with the rotating shaft (8) to form a movably connected connection. The fixing block (15) is fixed on the surface of the lower ring (19).

Images