Milling clamp with adjustable angle

Abstract

A V-shaped groove is formed in the center of a clamp body, a rotating shaft is transversely and rotationally installed on the lower front portion of the clamp body, two angle adjusting screws are symmetrically installed in the rotating shaft, the angle adjusting screws penetrate through the clamp body and are in threaded connection with the rotating shaft, and locking nuts are installed on the angle adjusting screws. Ball head supporting nails are symmetrically installed on the rear side of the bottom of the clamp body. The two clamping screws are symmetrically installed on the upper portion of the clamp body, and the rotary pressing plate is installed on the two clamping screws and fixed through the clamping bolts. According to the angle-adjustable milling clamp, four-line long-axis skewed slots can be machined on a machining center without a four-axis rotary table, the clamp is provided with the angle-adjustable rotating mechanism and the angle-adjustable screw to enable the clamp body to incline by different angles, and therefore multi-angle long-axis skewed slot machining or inclined plane machining is achieved. The long shaft milling groove angle and length size accuracy with different angle requirements is ensured, the working efficiency is high, and the rejection rate is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fixture technical field especially relates to a long shaft machining fixture. BACKGROUND

[0002] Some long shaft workpiece products need to mill out different angle inclined grooves, and the inclined groove end surface and the positioning pin center have length size requirements, and the inclined groove end surface to the positioning pin has certain axial positioning size requirements, and it is extremely difficult to process the inclined groove on the machining center without four-axis rotary table, the processing efficiency is low, the waste rate is high, and there is no suitable fixture. SUMMARY

[0003] In order to solve the above problems existing in the processing of long shaft workpieces with inclined grooves, the utility model provides an adjustable angle milling fixture.

[0004] The utility model discloses a technical scheme that is adopted to realize the above-mentioned purpose: adjustable angle milling fixture, the V-shaped groove is equipped at the center of the clamping body 4, the rotary shaft 8 is horizontally rotatably installed at the lower front part of the clamping body 4, two angle adjusting screws 9 are symmetrically installed in the rotary shaft 8, the angle adjusting screw 9 passes through the clamping body 4 and is in screw connection with the rotary shaft 8, and the locking nut 10 is installed on the angle adjusting screw 9; the round ball head support nail 7 is symmetrically installed at the bottom rear side of the clamping body 4; the two clamping screw rods 5 are symmetrically installed at the upper part of the clamping body 4, and the rotary pressing plate 3 is installed on the two clamping screw rods 5 and is fixed through the clamping bolt 1.

[0005] The clamping body 4 is installed with the positioning pin 6 corresponding to the workpiece pin hole.

[0006] One end of the rotary pressing plate 3 is provided with a threaded hole and is in screw connection with one clamping screw rod 5, and the other end of the rotary pressing plate 3 is a half-closed groove structure and is clamped with the other clamping screw rod 5.

[0007] The lower part of the clamping screw rod 5 is the clamping support 2, and the clamping support 2 is installed on the clamping body 4.

[0008] The adjustable angle milling fixture can process the four-line long shaft inclined groove on the machining center without four-axis rotary table, the angle adjusting rotary mechanism is arranged on the fixture, the angle adjusting screw makes the clamping body tilt at different angles, so that the long shaft inclined groove processing or inclined plane processing of various angles is realized, the long shaft milling groove angle and length size of different angle requirements are accurate, the working efficiency is high, and the waste rate is low. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is the front view of the adjustable angle milling fixture of the utility model.

[0010] Figure 2 It is Figure 1 The B-B section view of

[0011] Figure: 1, clamping nut, 2, clamping pillar, 3, rotary pressure plate, 4, clamping concrete, 5, clamping screw, 6, positioning pin, 7, round ball head support nail, 8, rotating shaft, 9, angle adjusting screw, 10, locking nut. DETAILED DESCRIPTION

[0012] The adjustable angle milling fixture structure of the utility model is shown as Figure 1 and Figure 2 , the center of the clamping concrete 4 is provided with a V-shaped groove, the clamping concrete 4 is provided with a positioning pin 6 corresponding to the pin hole of the workpiece, the lower front part of the clamping concrete 4 is provided with a rotating shaft 8 installed in a transverse rotating mode, two angle adjusting screws 9 are symmetrically installed in the rotating shaft 8, the angle adjusting screws 9 pass through the clamping concrete 4 and are in threaded connection with the rotating shaft 8, and a locking nut 10 is installed on the angle adjusting screw 9; the bottom rear side of the clamping concrete 4 is symmetrically provided with a round ball head support nail 7; the upper part of the clamping concrete 4 is symmetrically provided with two clamping screws 5, the lower part of the clamping screw 5 is a clamping pillar 2, the clamping pillar 2 is installed on the clamping concrete 4, a rotary pressure plate 3 is installed on the two clamping screws 5 and is fixed through a clamping bolt 1, one end of the rotary pressure plate 3 is provided with a threaded hole and is in threaded connection with one clamping screw 5, and the other end of the rotary pressure plate 3 is in half-closed groove type structure and is clamped with the other clamping screw 5.

[0013] In use, (1) the fixture is first placed on the working table of the machining center, the spherical surfaces of the two round ball head support nails 7 are tangent to the surface of the working table, and the rotating shaft 8 can rotate on the clamping concrete 4, so that the two angle adjusting screws 9 are always perpendicular to the platform when the heights of the two angle adjusting screws 9 are different. The heights of the two angle adjusting screws 9 are rotated to change the inclination angle of the V-shaped groove of the clamping concrete 4, the inclination angle of the V-shaped groove of the clamping concrete 4 is measured by using a protractor, and the inclination angle is consistent with the required angle of the inclined groove of the workpiece long shaft, and the locking nut 10 locks the two angle adjusting screws 9. (2) the pin hole of the long shaft of the workpiece to be machined is placed in the positioning pin 6 on the clamping concrete 4, and the outer cylindrical surface of the long shaft of the workpiece is centered and positioned on the V-shaped groove of the clamping concrete 4. (3) one end of the rotary pressure plate 3 is installed on the clamping screw 5, and a hexagonal nut 1 is arranged on the rotary pressure plate 3 to ensure that the rotary pressure plate 3 can rotate flexibly, the rotary pressure plate 3 is rotated to press the long shaft, the other end of the rotary pressure plate 3 is in half-closed groove structure, and the rotary pressure plate 3 is clamped on the other clamping screw 5 after being adjusted, and the clamping bolt 5 is locked to press the long shaft. Then the milling groove is started. The adjustable angle milling fixture is positioned by the outer circle of the workpiece shaft diameter and the positioning pin hole, and the rotary pressure plate is used to press the long shaft workpiece to perform milling groove machining. On the machining center without a four-axis rotary table, an angle adjusting rotating mechanism is designed on the fixture, the angle adjusting screws make the clamping concrete inclined at different angles, so that various angle long shaft inclined groove machining or inclined plane machining is realized.

Claims

1. Adjustable angle milling fixture, characterized by: A V-shaped groove is provided at the center of the clamp body (4); a rotating shaft (8) is installed on the lower front part of the clamp body (4) for horizontal rotation; two angle adjustment screws (9) are symmetrically installed in the rotating shaft (8); the angle adjustment screws (9) pass through the clamp body (4) and are threadedly connected to the rotating shaft (8); a locking nut (10) is installed on the angle adjustment screw (9); a spherical head support nail (7) is symmetrically installed on the rear side of the bottom of the clamp body (4); two clamping screws (5) are symmetrically installed on the upper part of the clamp body (4); the rotary pressure plate (3) is installed on the two clamping screws (5) and fixed by the clamping bolt (1).

2. The adjustable angle milling fixture according to claim 1, characterized in that: A positioning pin (6) corresponding to the pin hole of the workpiece is installed on the clamp body (4).

3. The adjustable angle milling fixture according to claim 1, characterized in that: One end of the rotary pressure plate (3) is provided with a threaded hole and is threadedly connected to a clamping screw (5); the other end of the rotary pressure plate (3) is a semi-closed groove structure and is clamped to another clamping screw (5).

4. The adjustable angle milling fixture according to claim 1, characterized in that: The lower part of the clamping screw (5) is a clamping support (2), and the clamping support (2) is installed on the clamping body (4).

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