CN220680132U - Equal-dividing positioning and locking mechanism of main shaft and lathe - Google Patents

Abstract

The utility model discloses an equal-dividing positioning and locking mechanism of a main shaft and a lathe, which comprise a frame, wherein a body is rotatably arranged on the frame, clamping blocks which are distributed in a circumferential array and are used for clamping the body are movably arranged on the frame, positioning pins are arranged on the clamping blocks, and mortises matched with the positioning pins are formed in the body. According to the equal-degree positioning and locking mechanism of the spindle and the lathe, when the rotation angle of the body is required to be finely controlled, the clamping blocks can be driven to approach the body, positioning pins on the clamping blocks are inserted into the body to position the body, the clamping blocks clamp the body to avoid rotation relative to the frame, when the rotation angle is determined, the clamping blocks are driven to move in a direction away from the body, the clamping blocks are separated from the body, the body can be rotated at the moment, the clamping blocks are distributed in a circumferential array, the rotation angle of the body can be determined according to the number of the clamping blocks rotated by the body, and the clamping blocks clamp the body again after the rotation is completed.

Description

Equal-dividing positioning and locking mechanism of main shaft and lathe

Technical Field

The utility model relates to the technical field of lathe spindles, in particular to an equal-dividing positioning and locking mechanism of a spindle and a lathe.

Background

The main shaft is one of important components of the lathe and is mainly used for clamping a workpiece or a tool so as to keep the workpiece or the tool in accurate position relation with other parts of the lathe.

According to publication number CN216503680U, publication date 2022.05.13, an automatic locking device for a spindle clamp of a double-sided machine tool is disclosed, which comprises a connecting seat, an air cylinder, a motor, a piston rod, a connecting block, a movable outer sleeve and a fixed inner sleeve. The inside of the connecting seat is hollow; the air cylinder is arranged at one port of the connecting seat; the motor is arranged at the other port of the connecting seat. The piston rod is installed in the cylinder. The rear end of the movable outer sleeve is internally tangent to the inner wall of the connecting seat, the rear end of the movable outer sleeve is externally tangent to the fixed inner sleeve, and the outer surface of the fixed inner sleeve transmits torque to the inner surface of the movable outer sleeve; the fixed inner sleeve is fixed on a main shaft of the motor. The device is positioned through the cylinder, is locked through the motor rotation, executes respectively, and the execution is quick, accurate in place, and degree of automation is high, reduces manual operation.

In the prior art including the above patent, when a workpiece is processed, the workpiece needs to be fixed on a spindle, the spindle rotates with the workpiece so as to cut the workpiece by a cutter, but when fine processing is performed, the rotation angle of the workpiece needs to be precisely controlled, the spindle is directly rotatably mounted on a lathe, the rotation angle is difficult to control, and only experience or an additional measuring tool can be used for judging the rotation angle of the workpiece.

Disclosure of Invention

The utility model aims to provide an equal-degree positioning and locking mechanism of a main shaft and a lathe, and aims to solve the problem that the main shaft is rotatably arranged on the lathe and the rotating angle of the main shaft is difficult to accurately control.

In order to achieve the above purpose, the utility model provides an equal-degree positioning and locking mechanism of a main shaft, which comprises a frame, wherein a body is rotatably arranged on the frame, clamping blocks which are distributed in a circumferential array and are used for clamping the body are movably arranged on the frame, positioning pins are arranged on the clamping blocks, and mortises matched with the positioning pins are formed in the body.

Preferably, a driving ring for driving the clamping block to move is movably arranged on the frame.

Preferably, the driving ring is provided with a planar thread, and the clamping block is provided with a chute adapted to the planar thread.

Preferably, a deflector rod is movably arranged on the driving ring, and a tenon block is arranged on the deflector rod.

Preferably, the driving ring is provided with a mortise adapted to the tenon block.

Preferably, the frame is provided with a movable ring for driving the body to rotate.

Preferably, a ratchet and pawl mechanism is arranged between the movable ring and the body.

Preferably, the movable ring is provided with a mortise for the shift lever to move.

Preferably, the side wall of the mortise is hinged with a movable rod for limiting the deflector rod.

A lathe comprises the equal-dividing positioning and locking mechanism of the main shaft in the scheme.

In the technical scheme, the equal-dividing positioning and locking mechanism of the spindle and the lathe provided by the utility model have the following beneficial effects: when the rotation angle of the body needs to be finely controlled, a plurality of clamping blocks can be led to approach the body, positioning pins on the clamping blocks are inserted into the body to position the body, the clamping blocks clamp the body, the clamping blocks are prevented from rotating relative to the frame, the clamping blocks are used as starting points, when the rotation angle needs to be determined, the clamping blocks are driven to move in the direction away from the body, the clamping blocks are separated from the body, the body can be rotated at the moment, the clamping blocks are distributed in a circumferential array, the rotation angle of the clamping blocks can be determined according to the number of the clamping blocks rotated by the body, and the clamping blocks clamp the body again after the rotation is completed.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic diagram of the overall structure provided by an embodiment of the present utility model;

fig. 2 is a schematic diagram of an internal structure according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a frame; 11. a clamping block; 12. a positioning needle; 13. a drive ring; 14. a deflector rod; 141. tenon blocks; 2. a body; 21. a movable ring; 22. a movable rod.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1-2, an equal-degree positioning and locking mechanism of a main shaft comprises a frame 1, wherein a body 2 is rotatably arranged on the frame 1, clamping blocks 11 which are distributed in a circumferential array and used for clamping the body 2 are movably arranged on the frame 1, positioning pins 12 are arranged on the clamping blocks 11, and mortises matched with the positioning pins 12 are formed in the body 2.

Specifically, the body 2 in the above embodiment is specifically a main shaft.

In the above technical scheme, when the rotation angle of the body 2 needs to be finely controlled, the plurality of clamping blocks 11 can be led to approach the body 2, the positioning pins 12 on the clamping blocks 11 are inserted into the body 2 to position the body 2, the clamping blocks 11 clamp the body 2, the body 2 is prevented from rotating relative to the frame 1, when the rotation angle needs to be determined, the clamping blocks 11 are driven to move in a direction away from the body 2, the clamping blocks 11 are separated from the body 2, the body 2 can be rotated at the moment, the clamping blocks 11 are distributed in a circumferential array, the rotation angle can be determined according to the number of the clamping blocks 11 rotated by the body 2, and after the rotation is completed, the clamping blocks 11 clamp the body 2 again.

As a further provided embodiment of the present utility model, a driving ring 13 for driving the clamping block 11 to move is movably provided on the frame 1, a planar thread is provided on the driving ring 13, a chute adapted to the planar thread is provided on the clamping block 11, a deflector rod 14 is movably provided on the driving ring 13, a tenon block 141 is provided on the deflector rod 14, and a tenon slot adapted to the tenon block 141 is provided on the driving ring 13; after the angle required to be rotated is determined, the deflector rod 14 is pulled, the deflector rod 14 drives the driving disc to rotate, the plane threads on the driving disc move along the sliding grooves on the clamping blocks 11 and push the clamping blocks 11 to move away from the body 2, the clamping blocks 11 are separated from the body 2, the body 2 can rotate freely at the moment, the deflector rod 14 is pushed, the deflector rod 14 moves along the sliding grooves on the frame 1, the tenon block 141 on the deflector rod 14 leaves the driving ring 13 and enters the movable ring 21, at the moment, the deflector rod 14 is pulled, the tenon block 141 on the deflector rod 14 abuts against the end part of the movable rod 22 and pushes the movable ring 21 to rotate through the movable rod 22, a ratchet pawl mechanism between the movable ring 21 and the body 2 can transmit kinetic energy to drive the body 2 to rotate, the clamping blocks 11 are distributed in a circumferential array, the rotating angle of the body can be determined according to the number of the clamping blocks 11 rotated by the body 2, after the rotation is completed, the deflector rod 14 is pushed, the deflector rod 14 moves along the inclined surface of the movable rod 22 and pushes the movable rod 22, the tenon block 141 leaves the moving path of the tenon block 141 and moves until the tenon block 141 is opposite to the driving ring 13, the tenon block is pushed to the main shaft 13, the spindle 13 is pushed to rotate, the spindle 13 is pushed to the body 13 is pushed to the main shaft 13 again, and the spindle 13 is pushed to rotate the deflector rod 13, and the spindle 13 is pushed to rotate the spindle 13 to the spindle 13 is positioned.

As still another embodiment of the present utility model, a movable ring 21 for driving the body 2 to rotate is provided on the stand 1, a ratchet pawl mechanism is provided between the movable ring 21 and the body 2, a mortise for moving the shift lever 14 is provided on the movable ring 21, a movable lever 22 for limiting the shift lever 14 is hinged on a side wall of the mortise, a torsion spring is provided between the movable lever 22 and the movable ring 21, and a rotation damper is provided between the movable ring 21 and the stand 1; after the angle required to be rotated is determined, the deflector rod 14 is pulled, the deflector rod 14 drives the driving disc to rotate, the plane threads on the driving disc move along the sliding grooves on the clamping blocks 11 and push the clamping blocks 11 to move away from the body 2, the clamping blocks 11 are separated from the body 2, the body 2 can rotate freely at the moment, the deflector rod 14 is pushed, the deflector rod 14 moves along the sliding grooves on the frame 1, the tenon block 141 on the deflector rod 14 leaves the driving ring 13 and enters the movable ring 21, at the moment, the deflector rod 14 is pulled, the tenon block 141 on the deflector rod 14 abuts against the end part of the movable rod 22 and pushes the movable ring 21 to rotate through the movable rod 22, a ratchet pawl mechanism between the movable ring 21 and the body 2 can transmit kinetic energy to drive the body 2 to rotate, the clamping blocks 11 are distributed in a circumferential array, the rotating angle of the body can be determined according to the number of the clamping blocks 11 rotated by the body 2, after the rotation is completed, the deflector rod 14 is pushed, the deflector rod 14 moves along the inclined surface of the movable rod 22 and pushes the movable rod 22, the tenon block 141 leaves the moving path of the tenon block 141 and moves until the tenon block 141 is opposite to the driving ring 13, the tenon block is pushed to the main shaft 13, the spindle 13 is pushed to rotate, the spindle 13 is pushed to the body 13 is pushed to the main shaft 13 again, and the spindle 13 is pushed to rotate the deflector rod 13, and the spindle 13 is pushed to rotate the spindle 13 to the spindle 13 is positioned.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims (10)

1. The utility model provides a main shaft's isocratic location locking mechanism, its characterized in that, includes frame (1), rotate on frame (1) and be provided with body (2), the activity is provided with on frame (1) and is circumference array distribution and be used for the centre gripping grip block (11) of body (2), be provided with pilot pin (12) on grip block (11), offer on body (2) with the mortise of pilot pin (12) adaptation.

2. The equally-divided positioning and locking mechanism of the main shaft according to claim 1, characterized in that a driving ring (13) for driving the clamping block (11) to move is movably arranged on the frame (1).

3. The equal-dividing positioning and locking mechanism of a main shaft according to claim 2, wherein the driving ring (13) is provided with a plane thread, and the clamping block (11) is provided with a chute adapted to the plane thread.

4. The equal-degree positioning and locking mechanism of a main shaft according to claim 2, wherein a deflector rod (14) is movably arranged on the driving ring (13), and a tenon block (141) is arranged on the deflector rod (14).

5. The indexing locking mechanism of a spindle as claimed in claim 4, wherein said drive ring (13) is provided with a tongue and groove adapted to said tongue and groove (141).

6. The equally-divided positioning and locking mechanism of a spindle according to claim 4, characterized in that the frame (1) is provided with a movable ring (21) for driving the body (2) to rotate.

7. The indexing locking mechanism of a spindle according to claim 6, characterized in that a ratchet-pawl mechanism is provided between the movable ring (21) and the body (2).

8. The indexing locking mechanism of claim 7, wherein said movable ring (21) is provided with a slot for said lever (14) to move.

9. The indexing locking mechanism of claim 8, wherein the side walls of the mortise are hinged with a movable lever (22) for restraining the lever (14).

10. A lathe comprising the spindle of any one of claims 1 to 9, wherein the spindle is provided with an aliquoting positioning and locking mechanism.