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Wedge-shaped valve body turning tooling design and calculation of---2009-10-15
Processing of various types of wedge-shaped gate of the valve, usually exist in the wedge angle of 2 ¡ã 5 'inclined wedge surface processing M85 ¡Á 2-6H thread issues.
In order to improve work efficiency, specially a clamping surface of the completion of two wedge thread turning tooling process.
£ £ 1. Tooling Design
£ £ (1) Analysis of the workpiece
This class has the symmetry of the workpiece, if the workpiece around the offset e and parallel to the axis of O1'O2 'axis 180 ¡ã, then the right end of the thread the center of O2 left in the original thread of the centerline O1O extension line, and the right end of the screw face perpendicular to the centerline of the original thread left O1O, which face in parallel with the original thread left.
£ £ (2) design requirements
Analysis we can see from the workpiece to a fixture to complete two symmetrical wedge surface thread processing, the processing thread left, the left center O1 threaded spindle lathe centers must be online, thread-end with the spindle centerline vertical; in processing right-hand side thread When the workpiece in the fixture to be rotated 180 ¡ã, rotation center O2 after the right-hand side must also be threaded on a lathe spindle center line, and that the screw axis perpendicular to face with the spindle.
£ £ (3) structural characteristics of
In the casing there is an easy rotating T-slot, left the rotation matrix size of the center line of the same spindle centerline, so that the conversion can be used in different flange connection with a variety of lathe spindle; while the right end of the rotation matrix size of the intersection of the centerline and the right end of the surface should be on the move h, so that the center line with the lathe spindle centerline of the intersection of O threads in the left center of line matrix must be a right-hand side slope inclination of 2 ¡ã 52 '.
In order to rotate the workpiece before and after its left and right ends of thread centers on a lathe spindle center line, the right end of the rotating tire board three dimensions should be relative to the left of the centerline of rotation of the center line down the size offset e.
£ £ (4) Calculation of critical dimension
Tire plate 3 left and right ends of the center of rotation size deviation, that is, the workpiece around the O1'O2 'rotation offset e = 85 / (2tg2 ¡ã 52').
Matrix a left and right ends of the center of rotation size height difference h = ltg2 ¡ã 52 '.
£ £ 2. Fixture setup and application of
Will clamp flange directly connected with the converter in the car bed, connected with the CW6163 conversion flange. The use of the workpiece on the flange holes, with nut 12 will compress the workpiece in the fixture, the loose nut 5, rotating fixture to tire plate 3 on the scale line and the matrix on a scale-line right now, positioning pin 15 into the positioning After two sets, tighten the nut 5. Workpiece and fixture in the top of the top line, the car left oblique wedge surface of the thread, and if not, then the vehicle right-hand side thread. Processing finished at one end, parking, release the nut 5, the workpiece turn 180 ¡ã, so that tire plate 3 on the scale line and the pieces of a carcass on the scale-line right now, positioning pin 15 into the other end of positioning units, tighten the nut 5, Turning the other end can be threaded.
The clamp structure is simple, just replace the tires of different boards can be used for processing different sizes of the same valve. Practice shows that the turning tooling easy to use, a setup to complete the two wedge surface of thread processing, the processing can be fully guaranteed product quality.
In order to improve work efficiency, specially a clamping surface of the completion of two wedge thread turning tooling process.
£ £ 1. Tooling Design
£ £ (1) Analysis of the workpiece
This class has the symmetry of the workpiece, if the workpiece around the offset e and parallel to the axis of O1'O2 'axis 180 ¡ã, then the right end of the thread the center of O2 left in the original thread of the centerline O1O extension line, and the right end of the screw face perpendicular to the centerline of the original thread left O1O, which face in parallel with the original thread left.
£ £ (2) design requirements
Analysis we can see from the workpiece to a fixture to complete two symmetrical wedge surface thread processing, the processing thread left, the left center O1 threaded spindle lathe centers must be online, thread-end with the spindle centerline vertical; in processing right-hand side thread When the workpiece in the fixture to be rotated 180 ¡ã, rotation center O2 after the right-hand side must also be threaded on a lathe spindle center line, and that the screw axis perpendicular to face with the spindle.
£ £ (3) structural characteristics of
In the casing there is an easy rotating T-slot, left the rotation matrix size of the center line of the same spindle centerline, so that the conversion can be used in different flange connection with a variety of lathe spindle; while the right end of the rotation matrix size of the intersection of the centerline and the right end of the surface should be on the move h, so that the center line with the lathe spindle centerline of the intersection of O threads in the left center of line matrix must be a right-hand side slope inclination of 2 ¡ã 52 '.
In order to rotate the workpiece before and after its left and right ends of thread centers on a lathe spindle center line, the right end of the rotating tire board three dimensions should be relative to the left of the centerline of rotation of the center line down the size offset e.
£ £ (4) Calculation of critical dimension
Tire plate 3 left and right ends of the center of rotation size deviation, that is, the workpiece around the O1'O2 'rotation offset e = 85 / (2tg2 ¡ã 52').
Matrix a left and right ends of the center of rotation size height difference h = ltg2 ¡ã 52 '.
£ £ 2. Fixture setup and application of
Will clamp flange directly connected with the converter in the car bed, connected with the CW6163 conversion flange. The use of the workpiece on the flange holes, with nut 12 will compress the workpiece in the fixture, the loose nut 5, rotating fixture to tire plate 3 on the scale line and the matrix on a scale-line right now, positioning pin 15 into the positioning After two sets, tighten the nut 5. Workpiece and fixture in the top of the top line, the car left oblique wedge surface of the thread, and if not, then the vehicle right-hand side thread. Processing finished at one end, parking, release the nut 5, the workpiece turn 180 ¡ã, so that tire plate 3 on the scale line and the pieces of a carcass on the scale-line right now, positioning pin 15 into the other end of positioning units, tighten the nut 5, Turning the other end can be threaded.
The clamp structure is simple, just replace the tires of different boards can be used for processing different sizes of the same valve. Practice shows that the turning tooling easy to use, a setup to complete the two wedge surface of thread processing, the processing can be fully guaranteed product quality.
