Flange sealing groove machining clamp

Abstract

The utility model relates to the technical field of machining clamps, in particular to a flange sealing groove machining clamp which comprises a fixed base, an upper positioning face and a positioning and clamping mechanism, the upper positioning face is arranged right above the fixed base, and the positioning and clamping mechanism is arranged between the fixed base and the upper positioning face. The positioning clamping mechanism comprises positioning plates, positioning bolts and positioning nuts, the two positioning plates are symmetrically installed between the fixed base and the upper positioning face, positioning threaded holes are symmetrically formed in the two sides of the upper positioning face, the positioning bolts are in threaded connection with the interiors of the positioning threaded holes, and the positioning bolts are in threaded connection with the interiors of the positioning threaded holes. The positioning nut is in threaded connection with the bottom end of the positioning bolt; according to the machining clamp, deformation of a machined part or deviation of the machining size can be prevented, the machining efficiency is high, the service life of the machining clamp is long, parts of the positioning and clamping device can be independently detached and replaced, the time for shutdown and repeated manufacturing of tools is shortened, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model patent relates to the technical field of mechanical processing fixtures, and specifically, to a flange sealing groove processing fixture. Background Art

[0002] When processing flanges, the workpiece sealing groove needs to be processed in coordination with the CNC machining center machine tool. The processing size and the precision requirements of the coordination are very strict. Generally speaking, the CNC machining center machine tool processing method is to clamp the workpiece to be processed through a three-jaw self-centering chuck, but this traditional method usually requires the machining center to find the reference through a lever table, which is time-consuming and labor-intensive, and the precision is not up to standard. The processing precision often fails to meet the design requirements. This traditional method is not suitable for high-precision large workpieces, and the processing efficiency is low. Therefore, the present application provides a flange sealing groove processing fixture. Utility Model Content

[0003] The utility model aims to provide a flange sealing groove processing fixture, aiming to solve the problem that the traditional method usually requires the machining center to find the reference through a lever table, which is time-consuming and labor-intensive and the precision is not up to standard, and the machining precision often fails to meet the design requirements. The use of this traditional method is not suitable for high-precision large workpieces and has low machining efficiency.

[0004] The utility model is implemented in this way, comprising a fixed base, an upper positioning surface and a positioning clamping mechanism, wherein the upper positioning surface is arranged vertically directly above the fixed base, and the positioning clamping mechanism is arranged between the fixed base and the upper positioning surface;

[0005] The positioning clamping mechanism includes a positioning plate, a positioning bolt and a positioning nut. Two positioning plates are provided and are symmetrically installed between the fixed base and the upper positioning surface. Positioning threaded holes are symmetrically opened on both sides of the upper positioning surface. The positioning bolts are threadedly connected in the positioning threaded holes, and the positioning nuts are threadedly connected to the bottom ends of the positioning bolts.

[0006] Furthermore, the fixed base is a plate-shaped structure.

[0007] Furthermore, the height and inner contour of the positioning plate match the outer contour of the workpiece to be processed.

[0008] Furthermore, the outer contour of the upper positioning surface is provided with certain depressions, the outer contour of the positioning plate is provided with positioning holes, the number of the depressions matches the number of the positioning holes, and the positioning holes match the depressions provided on the upper positioning surface.

[0009] Furthermore, the recess is an arc-shaped structure and one end thereof matches the contour of the positioning hole.

[0010] Furthermore, the outer contour of the upper positioning surface abuts against the outer contour of the workpiece to be processed.

[0011] Furthermore, an adjustment component is arranged in the middle of the back side of the positioning plates on both sides, and the adjustment component includes a rotating sleeve and a threaded rod. Two threaded rods are arranged, and the opposite ends of the threaded rods on both sides are respectively threadedly connected to the inside of the end of the rotating sleeve, and the opposite ends of the threaded rods on both sides are respectively fixedly connected to the fixed base and the upper positioning surface, and a plurality of limit rods are respectively fixedly connected to the edge positions of the side walls relative to the fixed base and the upper positioning surface, and limit holes are respectively opened at corresponding positions on the upper and lower sides of the positioning plate and the back plate, and the limit rods are slidably arranged in the limit holes.

[0012] Compared with the prior art, the utility model can prevent deformation of the workpiece or deviation of the processing size, has high processing efficiency, and has a reasonable layout. By setting a positioning plate and a positioning bolt, it can save costs while improving accuracy. The processing fixture has a long service life, and the parts of the positioning clamping device can be disassembled and replaced separately, which reduces the time of downtime and repeated production of tooling and improves processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of a flange sealing groove processing fixture provided by the utility model;

[0014] Figure 2 This is a front view of a flange sealing groove processing fixture provided by the utility model;

[0015] Figure 3 It is a side view of a flange sealing groove processing fixture provided by the utility model;

[0016] Figure 4 It is a top view of a flange sealing groove processing fixture provided by the utility model;

[0017] Figure 5 The utility model is a structural schematic diagram of an adjustment component of a flange sealing groove processing fixture.

[0018] The figure marks involved in the above drawings are: 1. fixed base; 2. positioning plate; 3. upper positioning surface; 4. positioning bolt; 5. positioning nut; 6. recess; 7. positioning hole; 8. positioning threaded hole; 9. adjustment assembly; 91. rotating sleeve; 92. threaded rod; 93. limiting hole; 94. limiting rod. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] The implementation of the utility model is described in detail below in conjunction with a specific embodiment, including a fixed base 1, an upper positioning surface 3 and a positioning clamping mechanism, wherein the upper positioning surface 3 is arranged vertically directly above the fixed base 1, and the positioning clamping mechanism is arranged between the fixed base 1 and the upper positioning surface 3;

[0021] The positioning clamping mechanism includes a positioning plate 2, a positioning bolt 4 and a positioning nut 5. The positioning plates 2 are provided with two and are symmetrically installed between the fixed base 1 and the upper positioning surface 3. The upper positioning surface 3 has positioning threaded holes 8 symmetrically opened on both sides. The positioning bolts 4 are threadedly connected in the positioning threaded holes 8, and the positioning nuts 5 are threadedly connected to the bottom ends of the positioning bolts 4. During operation, the parts are limited by the fixed plate, which is convenient for fixing the parts during processing and ensuring the accuracy of processing. In addition, the upper positioning surface 3 is in contact with the workpiece to be processed, and the workpiece is further clamped and fixed by manually tightening the positioning bolts 4 and the positioning nuts 5.

[0022] The fixed base 1 is a plate-shaped structure.

[0023] The height and inner contour of the positioning plate 2 match the outer contour of the workpiece to be processed; during operation, the workpiece to be processed is further limited, which can overcome the problems of non-coplanar flange sections and irregular parts shapes, ensure the accuracy of processing alignment, and improve processing efficiency.

[0024] The outer contour of the upper positioning surface 3 is provided with certain recesses 6, and the outer contour of the positioning plate 2 is provided with positioning holes 7. The number of the recesses 6 matches the number of the positioning holes 7, and the positioning holes 7 match the recesses 6 provided on the upper positioning surface 3. During operation, the two ends of the positioning plate 2 contact the flange, and then are clamped and fixed by the recesses 6 on the upper positioning surface 3. The space is flexibly used for clamping and fixing. At the same time, the number and position setting of the positioning holes 7 play an indicative role in the fixing direction of the workpiece to be processed.

[0025] The recess 6 is an arc-shaped structure and one end thereof matches the contour of the positioning hole 7;

[0026] The outer contour of the upper positioning surface 3 abuts against the outer contour of the workpiece to be processed; when working, the upper positioning surface 3 has a certain thickness, and its outer contour abuts against the outer contour of the workpiece to be processed, which plays a role in supporting and positioning the workpiece to be processed. By limiting the processing part to a certain extent, the processing accuracy required in the design drawing is guaranteed.

[0027] An adjusting assembly 9 is provided in the middle of the back side of the positioning plates 2 on both sides, and the adjusting assembly 9 includes a rotating sleeve 91 and a threaded rod 92. Two threaded rods 92 are provided, and the opposite ends of the threaded rods 92 on both sides are respectively threadedly connected to the inside of the end of the rotating sleeve 91, and the opposite ends of the threaded rods 92 on both sides are respectively fixedly connected to the fixed base 1 and the upper positioning surface 3, and the fixed base 1 and the upper positioning surface 3 are respectively fixedly connected with a plurality of limiting rods 94 at the edge positions of the opposite side walls, and the positioning plate 2 and the corresponding positions on the upper and lower sides of the back plate are respectively provided with limiting holes 93, and the limiting rods 94 are slidably set in the limiting holes 93; when working, by rotating the rotating sleeve 91, the threaded rods 92 on both sides are pushed to move in opposite directions, thereby changing the distance between the fixed base 1 and the upper positioning surface 3, so that it is suitable for clamping and fixing workpieces of different sizes; the limiting rods 94 and the limiting holes 93 cooperate to limit the fixed base 1 and the upper positioning surface 3 to reciprocate only along a straight line.

[0028] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] Reference Figure 1-5 As shown, it is a preferred embodiment provided by the utility model.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flange sealing groove processing fixture, characterized in that: It comprises a fixed base (1), an upper positioning surface (3) and a positioning clamping mechanism, wherein the upper positioning surface (3) is arranged vertically directly above the fixed base (1), and the positioning clamping mechanism is arranged between the fixed base (1) and the upper positioning surface (3); The positioning clamping mechanism comprises a positioning plate (2), a positioning bolt (4) and a positioning nut (5); two positioning plates (2) are provided and are symmetrically mounted between the fixed base (1) and the upper positioning surface (3); positioning threaded holes (8) are symmetrically opened on both sides of the upper positioning surface (3); the positioning bolt (4) is threadedly connected in the positioning threaded hole (8); and the positioning nut (5) is threadedly connected to the bottom end of the positioning bolt (4).

2. A flange sealing groove processing fixture according to claim 1, characterized in that: The fixed base (1) is a plate-shaped structure.

3. A flange sealing groove processing fixture according to claim 2, characterized in that: The height and inner contour of the positioning plate (2) match the outer contour of the workpiece to be processed.

4. A flange sealing groove processing fixture according to claim 3, characterized in that: The outer contour of the upper positioning surface (3) is provided with recesses (6), and the outer contour of the positioning plate (2) is provided with positioning holes (7), the number of the recesses (6) matches the number of the positioning holes (7), and the positioning holes (7) match the recesses (6) provided on the upper positioning surface (3).

5. A flange sealing groove processing fixture according to claim 4, characterized in that: The recess (6) is an arc-shaped structure and one end thereof matches the contour of the positioning hole (7).

6. A flange sealing groove processing fixture according to claim 5, characterized in that: The outer contour of the upper positioning surface (3) abuts against the outer contour of the workpiece to be processed.

7. A flange sealing groove processing fixture according to claim 6, characterized in that: An adjustment assembly (9) is arranged in the middle of the back side of the positioning plates (2) on both sides. The adjustment assembly (9) comprises a rotating sleeve (91) and a threaded rod (92). Two threaded rods (92) are arranged. The opposite ends of the threaded rods (92) on both sides are respectively threadedly connected to the inside of the end of the rotating sleeve (91). The opposite ends of the threaded rods (92) on both sides are respectively fixedly connected to the fixed base (1) and the upper positioning surface (3). The fixed base (1) and the upper positioning surface (3) are respectively fixedly connected to the edge positions of the side walls thereof. The positioning plate (2) and the back plate are respectively provided with limiting holes (93) at corresponding positions on the upper and lower sides thereof. The limiting rods (94) are slidably arranged in the limiting holes (93).

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