Clamping and fixing mechanism for tubular workpiece machining

Abstract

The utility model discloses a clamping and fixing mechanism for tubular workpiece machining, which comprises a workbench, an anti-slip pad is arranged at the lower end of the workbench, a fixed clamping component, a movable clamping component and a rotating mechanism for driving the movable clamping component to move are arranged at the upper end of the workbench, the fixed clamping component is arranged on the workbench, and the movable clamping component is arranged on the workbench. The movable clamping assembly is arranged on the moving mechanism; the fixed clamping assembly comprises a fixed clamping plate, a movable clamping plate and an adjusting bolt for driving the movable clamping plate to move, and the fixed clamping assembly and the movable clamping assembly are the same in structure; the rotating mechanism comprises a fan-shaped groove formed in the workbench, a driving rod is rotationally arranged in the fan-shaped groove, a connecting plate is arranged at one end of the driving rod, the movable clamping assembly is arranged on the connecting plate, a groove matched with the connecting plate is formed in one side of the fan-shaped groove, and a limiting mechanism used for fixing the driving rod is arranged at the lower end of the workbench. Compared with the prior art, the device has the advantage of being suitable for machining, fixing and limiting pipe fittings with different bending degrees.

Description

Technical Field

[0001] The utility model relates to the technical field of tubular workpiece limiting, in particular to a clamping and fixing mechanism for machining tubular workpieces. Background Technique

[0002] Tubular workpieces are a major category among many common components, including various pipe fittings, and their common feature is that their longitudinal sections are all circular;

[0003] Existing pipe fittings are generally divided into two categories. One is straight pipes, and the other is bent pipes with different degrees of bending. Whether it is a straight pipe or a bent pipe, it needs to be clamped and fixed during the production and processing process, which requires the use of a clamping and fixing mechanism for pipe fittings;

[0004] The traditional clamping and fixing mechanism for pipe fittings has a relatively simple structure, usually consisting of a workbench and a limiting mechanism arranged on the workbench. In order to improve the stability during the machining of pipe fittings, two limiting mechanisms are usually arranged on the workbench to clamp the pipe fittings. Although this improves the clamping stability of the pipe fittings, the relative angle between the two limiting mechanisms cannot be flexibly changed, and only the linear distance between the two limiting mechanisms can be changed, resulting in poor adaptability when fixing pipe fittings with different bending degrees. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] The technical problem to be solved by the utility model is that the relative position relationship of the existing limiting mechanism for pipe fittings can only be adjusted in terms of the linear distance, and it cannot be flexibly applied to the clamping, fixing and limiting of pipe fittings with different bending degrees.

[0007] (2) Technical Solutions

[0008] To solve the above technical problems, the technical solution provided by the utility model is as follows:

[0009] A clamping and fixing mechanism for machining tubular workpieces, including a workbench, a non-slip pad is provided at the lower end of the workbench, a fixed clamping component, a movable clamping component and a rotating mechanism for driving the movable clamping component to move are provided at the upper end of the workbench, the fixed clamping component is arranged on the workbench, and the movable clamping component is arranged on the rotating mechanism;

[0010] The fixed clamping component includes a fixed clamping plate, a movable clamping plate and an adjusting bolt for driving the displacement of the movable clamping plate, and the structures of the fixed clamping component and the movable clamping component are the same;

[0011] The rotating mechanism includes a sector-shaped groove formed in the workbench. A driving rod is rotatably provided in the sector-shaped groove. One end of the driving rod is provided with a connecting plate, and the moving clamping assembly is arranged on the connecting plate. A groove cooperating with the connecting plate is provided on one side of the sector-shaped groove, and a limiting mechanism for fixing the driving rod is provided at the lower end of the workbench.

[0012] As an improvement, the fixed clamping assembly further includes a fixed support plate. The adjusting bolt is threadedly connected to the fixed support plate and one end is rotatably connected to the moving clamping plate.

[0013] As an improvement, guiding grooves are formed on both the workbench and the connecting plate. A guiding slider slidably connected to the guiding groove is provided at the lower end of the moving clamping plate.

[0014] As an improvement, the limiting mechanism includes a rotating shaft fixedly connected to one end of the driving rod. The rotating shaft is rotatably connected to the workbench and one end extends to the lower end of the workbench. External threads are provided at one end of the rotating shaft, and a locking nut is threadedly connected to the external threads.

[0015] As an improvement, a handle rod is welded to one side of the locking nut.

[0016] As an improvement, the longitudinal sections of both the fixed clamping plate and the moving clamping plate are isosceles trapezoids, and anti-slip rubber pads are adhesively attached to the inner walls of the fixed clamping plate and the moving clamping plate.

[0017] (III) Beneficial effects

[0018] The advantages of the present utility model compared with the prior art are as follows: The rotating mechanism can drive the moving clamping mechanism to perform circular motion with the rotation center of the driving rod as the center through the driving rod and the connecting plate, and the driving rod is limited and fixed by the limiting mechanism, so that the relative angle between the fixed clamping assembly and the moving clamping assembly can be changed, so that on the basis of being able to clamp and fix a straight pipe, it can better adapt to the clamping and fixing of bent pipes with different bending degrees, thereby improving the flexibility and application range of its use. Description of the drawings

[0019] Figure 1 is a schematic structural view of a clamping and fixing mechanism for processing tubular workpieces of the present utility model Figure 1 .

[0020] Figure 2 is a schematic structural view of a clamping and fixing mechanism for processing tubular workpieces of the present utility model Figure 2 .

[0021] Figure 3 is a reference view of the use state of a clamping and fixing mechanism for processing tubular workpieces of the present utility model.

[0022] As shown in the figure: 1. Workbench; 2. Fixed clamping assembly; 3. Movable clamping assembly; 4. Sector-shaped groove; 5. Groove; 6. Anti-slip pad; 7. Rotating mechanism; 8. Fixed clamping plate; 9. Movable clamping plate; 10. Fixed support plate; 11. Adjusting bolt; 12. Guide groove; 13. Driving rod; 14. Connecting plate; 15. Rotating shaft; 16. Locking nut; 17. Handle rod. Detailed implementation manners

[0023] The following further elaborates on the present utility model in conjunction with the accompanying drawings.

[0024] In conjunction with the attached Figure 1 、 3 As shown, a clamping and fixing mechanism for processing tubular workpieces includes a workbench 1. An anti-slip pad 6 is provided at the lower end of the workbench 1. The anti-slip pad 6 is located at the four corner positions of the bottom surface of the workbench 1 and is adhesively connected to the workbench 1. The setting of the anti-slip pad 6 improves the stability of the placement of the workbench 1. A fixed clamping assembly 2, a movable clamping assembly 3, and a rotating mechanism 7 for driving the movement of the movable clamping assembly 3 are provided at the upper end of the workbench 1. The fixed clamping assembly 2 is arranged on the workbench 1, and the movable clamping assembly 3 is arranged on the rotating mechanism 7;

[0025] In conjunction with the attached Figure 3 As shown, the fixed clamping assembly 2 includes a fixed clamping plate 8, a movable clamping plate 9, and an adjusting bolt 11 for driving the displacement of the movable clamping plate 9. The fixed clamping assembly 2 further includes a fixed support plate 10. The adjusting bolt 11 is threadedly connected to the fixed support plate 10 and one end is rotatably connected to the movable clamping plate 9. The structures of the fixed clamping assembly 2 and the movable clamping assembly 3 are the same. By rotating the adjusting bolt 11, the movable clamping plate 9 can be driven to move relative to the fixed clamping plate 8, thereby realizing the clamping of the pipe fitting;

[0026] Guide grooves 12 are provided on both the workbench 1 and the connecting plate 14. A guide slider slidably connected to the guide groove 12 is provided at the lower end of the movable clamping plate 9. The setting of the guide slider and the guide groove 12 improves the stability of the movement of the movable clamping plate 9. The longitudinal sections of the fixed clamping plate 8 and the movable clamping plate 9 are both isosceles trapezoids. The setting of the isosceles trapezoid structure can better adapt to clamping pipe fittings of different diameters. Anti-slip rubber pads are adhesively attached to the inner walls of the fixed clamping plate 8 and the movable clamping plate 9, which can improve the stability of clamping the pipe fitting;

[0027] In conjunction with the attached Figure 1 、 3As shown in the figure, the rotating mechanism 7 includes a sector-shaped groove 4 formed on the workbench 1. A driving rod 13 is rotatably arranged in the sector-shaped groove 4. One end of the driving rod 13 is provided with a connecting plate 14. The moving clamping assembly 3 is arranged on the connecting plate 14. One side of the sector-shaped groove 4 is provided with a groove 5 that cooperates with the connecting plate 14. A limiting mechanism for fixing the driving rod 13 is provided at the lower end of the workbench 1.

[0028] Combined with the attached Figure 2 As shown in the figure, the limiting mechanism includes a rotating shaft 15 fixedly connected to one end of the driving rod 13. The rotating shaft 15 is rotatably connected to the workbench 1 and one end extends to the lower end of the workbench 1. One end of the rotating shaft 15 is provided with an external thread, and a locking nut 16 is threadedly connected to the external thread. One side of the locking nut 16 is welded with a handle rod 17. By rotating the locking nut 16 through the handle rod 17, the locking nut 16 is tightly attached to the lower end surface of the workbench 1, thereby fixing the driving rod 13.

[0029] When the present utility model is specifically implemented, the rotation angle of the driving rod in the sector-shaped groove is adjusted according to the type of pipe fittings to be clamped and fixed. Specifically, as shown in the attached drawings of the specification Figure 1 As shown in the figure, the driving rod is in contact with one side edge of the sector-shaped groove. At this time, the fixed clamping assembly and the moving clamping assembly are on the same straight line, and straight pipes can be clamped at this time; as shown in the attached drawings of the specification Figure 3 As shown in the figure, when the driving rod rotates to be in contact with the other side edge of the sector-shaped groove, the fixed clamping assembly and the moving clamping assembly are perpendicular to each other. At this time, right-angled pipe fittings can be clamped and fixed. At the same time, the connecting plate is located in the groove. In addition, when the driving rod is located between the two side edges of the sector-shaped groove, pipe fittings with various bending angles can be clamped and fixed, thereby improving the adaptability and flexibility of clamping pipe fittings;

[0030] As shown in the attached drawings of the specification Figure 2 As shown in the figure, after the driving rod moves in place, it can be fixed through the limiting mechanism at the lower end of the workbench. Specifically, the locking nut is rotated through the handle rod so that the locking nut is tightly attached to the lower end surface of the workbench. In order to improve the stability of fixation, the locking nut can be selected as a locknut;

[0031] For the specific clamping and fixing of pipe fittings, the adjusting bolt can be rotated. Under the action of screw thread engagement and feeding, the adjusting bolt drives the moving clamping plate to move towards the fixed clamping plate, and the pipe fittings are clamped and fixed in the trapezoidal clamping grooves of the two clamping plates. At the same time, different feeding amounts of the adjusting bolt can clamp pipe fittings with different pipe diameters, further improving its adaptability.

[0032] The above description has been made on the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the creation of the present utility model, design without creativity structural modes and embodiments similar to the technical solution, they shall fall within the protection scope of the present utility model.

Claims

1. A clamping and fixing mechanism for machining a tubular workpiece, including a workbench (1), and an anti-slip pad (6) is provided at the lower end of the workbench (1), characterized in that: At the upper end of the workbench (1), there are a fixed clamping component (2), a movable clamping component (3), and a rotating mechanism (7) for driving the movable clamping component (3) to move. The fixed clamping component (2) is arranged on the workbench (1), and the movable clamping component (3) is arranged on the rotating mechanism (7). The fixed clamping component (2) includes a fixed clamping plate (8), a movable clamping plate (9), and an adjusting bolt (11) for driving the displacement of the movable clamping plate (9). The structures of the fixed clamping component (2) and the movable clamping component (3) are the same. The rotating mechanism (7) includes a sector-shaped groove (4) opened on the workbench (1). A driving rod (13) is rotatably arranged in the sector-shaped groove (4). One end of the driving rod (13) is provided with a connecting plate (14). The movable clamping component (3) is arranged on the connecting plate (14). A groove (5) for cooperating with the connecting plate (14) is arranged on one side of the sector-shaped groove (4). A limiting mechanism for fixing the driving rod (13) is arranged at the lower end of the workbench (1).

2. The clamping and fixing mechanism for processing tubular workpieces according to claim 1, wherein: The fixed clamping component (2) further includes a fixed support plate (10). The adjusting bolt (11) is threadedly connected to the fixed support plate (10) and one end is rotatably connected to the movable clamping plate (9).

3. The clamping and fixing mechanism for machining tubular workpieces according to claim 2, wherein: Guide grooves (12) are opened on both the workbench (1) and the connecting plate (14). A guide slider that is slidably connected to the guide groove (12) is arranged at the lower end of the movable clamping plate (9).

4. A clamping and fixing mechanism for machining a tubular workpiece according to claim 1, characterized in that: The limiting mechanism includes a rotating shaft (15) fixedly connected to one end of the driving rod (13). The rotating shaft (15) is rotatably connected to the workbench (1) and one end extends to the lower end of the workbench (1). External threads are arranged at one end of the rotating shaft (15), and a locking nut (16) is threadedly connected to the external threads.

5. The clamping and fixing mechanism for machining tubular workpieces according to claim 4, wherein: A handle rod (17) is welded to one side of the locking nut (16).

6. The clamping and fixing mechanism for processing tubular workpieces according to claim 1, characterized in that: The longitudinal sections of the fixed clamping plate (8) and the movable clamping plate (9) are both isosceles trapezoids. Anti-slip rubber pads are adhesively attached to the inner walls of the fixed clamping plate (8) and the movable clamping plate (9).

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