CN219747545U - Single taper shaft processing tool - Google Patents

Abstract

The utility model discloses a single taper shaft machining tool, which belongs to the technical field of tool clamps and comprises an annular mounting sleeve, a plurality of movable blocks arranged on the mounting sleeve in an annular array manner and a driving piece for driving the movable blocks to move along the radial direction of the mounting sleeve; a plurality of mounting grooves for mounting the movable blocks are formed in the side wall of the mounting sleeve, sliding grooves are formed in the two side walls of the mounting grooves, and sliding blocks matched with the sliding grooves are formed in the two sides of the movable blocks; the movable block is provided with a driving surface which is contacted with the driving piece; the driving surface is an inclined surface extending along the axial direction of the mounting sleeve. The device overcomes the limitation of limited deformation of the mounting sleeve, can adapt to more workpieces with different specifications and sizes, and further improves the practicability of the device.

Description

Single taper shaft processing tool

Technical Field

The utility model relates to the technical field of tool fixtures, in particular to a single taper shaft machining tool.

Background

The existing cylindrical grinding process of the hollow shaft in daily machining is to position and install a workpiece by matching the hollow shaft with various plugs or pull rod spindles with central holes. The diameter of the inner hole of the part is measured firstly when the outer circle of the hollow shaft is processed each time, the plug is matched and turned according to the measured diameter, then the plug is inlaid into the inner hole, and the center hole is corrected and turned on a lathe. The excircle is processed by a method of 'one clamping one top' or 'double top' on a lathe or a grinding machine. However, because the apertures of the parts are different, plugs with different diameters are inlaid in different holes and used once, so that materials are wasted and the period is influenced. The processing method needs a plurality of working procedures and a plurality of processing machine tools, has long processing time and influences the processing efficiency and the processing precision of parts. Moreover, the plug needs to be disassembled by penetrating the long round rod into the hollow shaft and knocking the hollow shaft by using a hammer to take out the hollow shaft, so that the inner hole of the hollow shaft can be damaged by pulling, and the inner hole is scrapped out of tolerance.

The patent of application number CN201720648807.5 discloses a hollow shaft cylindrical grinding frock, including expanding sleeve and tapering dabber, the cover suit is in the hollow shaft, and tapering dabber suit is in the cover that expands, and the tapering dabber is the thick conical shaft of the thin rear end in front end, and the cover that expands is the cylindrical elasticity cover that expands of surface, and the internal surface of cover that expands matches with tapering dabber, and the cover rear end that expands is provided with keeps off along, and the cover front end that expands is provided with a plurality of openings along lengthwise direction, and the opening is crisscross along circumference to be distributed. The technology is characterized in that a plurality of openings are formed in an expansion sleeve, and the expansion sleeve is endowed with expansion deformation function through the openings, so that a workpiece is clamped from the inner wall of the workpiece. However, the technology has certain defects that the expansion sleeve does not have expansion deformation performance, and the expansion sleeve is only deformed through an opening on the expansion sleeve, so that the deformation amount is very limited, and the expansion sleeve cannot adapt to parts with more specifications.

In view of the above, the present inventors have made intensive studies to solve the above-mentioned drawbacks of the prior art.

Disclosure of Invention

The utility model mainly aims to provide a single taper shaft machining tool which solves the problems in the background technology.

In order to achieve the above object, the solution of the present utility model is:

a single taper shaft processing tool comprises an annular mounting sleeve, a plurality of movable blocks arranged on the mounting sleeve in an annular array manner, and a driving piece for driving the movable blocks to move along the radial direction of the mounting sleeve; a plurality of mounting grooves for mounting the movable blocks are formed in the side wall of the mounting sleeve, sliding grooves are formed in the two side walls of the mounting grooves, and sliding blocks matched with the sliding grooves are formed in the two sides of the movable blocks; the movable block is provided with a driving surface which is contacted with the driving piece; the driving surface is an inclined surface extending along the axial direction of the mounting sleeve.

Further, a guide post is arranged in the chute, and two ends of the guide post are respectively connected with the inner top wall and the inner bottom wall of the chute; and the sliding block is provided with a guide hole matched with the guide post.

Further, a reset spring is sleeved on the guide post, one end of the reset spring is fixedly connected with the inner top wall of the sliding groove, and the other end of the reset spring is fixedly connected with the top of the sliding block.

Further, the movable block is also provided with a clamping surface which is contacted with the workpiece; the clamping surfaces are stepped and extend along the axial direction of the mounting sleeve.

Further, a mounting plate is further formed on one end face of the mounting sleeve, a through hole for the driving piece to pass through is formed in the mounting plate, and a plurality of mounting holes are further formed in the mounting plate.

Further, the driving piece comprises a connecting rod matched with the through hole and a driving ball in sliding contact with the driving surface.

After the structure is adopted, compared with the prior art, the single taper shaft machining tool has the following beneficial effects:

1. according to the device, the plurality of movable blocks are arranged on the mounting sleeve in the annular array mode, the driving piece drives the movable blocks to move along the radial direction of the mounting sleeve, the clamping surface of the movable blocks clamps and positions the workpiece from the inner wall of the workpiece, the limitation of limited deformation of the mounting sleeve is overcome through movement of the movable blocks, the device can adapt to workpieces with different specifications and sizes, and the practicability of the device is further improved.

2. The guide post is arranged in the chute, and the guide hole matched with the guide post is formed in the sliding block, so that the movable block can be kept stable during moving, and the workpiece clamping and positioning effects are improved.

3. The clamping surface of the movable block is arranged to be in a stepped shape, so that the clamping device can be further suitable for workpieces with different specifications and sizes.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is an exploded view of FIG. 1;

FIG. 4 is an enlarged partial schematic view of FIG. 3A;

FIG. 5 is a schematic view of the construction of the mounting sleeve;

fig. 6 is a schematic structural view of the movable block.

Legend description: the mounting sleeve 1, the mounting groove 11, the sliding groove 111, the guide post 112, the mounting disc 12, the through hole 121, the mounting hole 122, the movable block 2, the sliding block 21, the guide hole 211, the driving surface 22, the clamping surface 23, the driving piece 3, the connecting rod 31, the driving ball 32 and the return spring 4.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 6, the single taper shaft processing tool according to the present utility model includes an annular mounting sleeve 1, a plurality of movable blocks 2 arranged on the mounting sleeve 1 in an annular array, and a driving member 3 for driving the movable blocks 2 to move along a radial direction of the mounting sleeve 1; a plurality of mounting grooves 11 for mounting the movable blocks 2 are formed on the side wall of the mounting sleeve 1, sliding grooves 111 are formed on the two side walls of the mounting grooves 11, and sliding blocks 21 matched with the sliding grooves 111 are formed on the two sides of the movable blocks 2; the movable block 2 has a driving surface 22 in contact with the driving member 3; the driving surface 22 is an inclined surface extending in the axial direction of the mounting bush 1. In this embodiment, the driving surface 22 is inclined gradually inward from the end far from the workpiece to the end near the workpiece; in addition, the driving element 3 can be controlled to move by a hydraulic cylinder. When the driving element 3 moves toward the workpiece, the driving element 3 slides along the driving surface 22, and the movable block 2 is pushed out, so that the movable block 2 is expanded outward, and the workpiece is clamped and positioned.

In this embodiment, a guiding post 112 is further disposed in the sliding slot 111, and two ends of the guiding post 112 are respectively connected with the inner top wall and the inner bottom wall of the sliding slot 111; the slider 21 is formed with a guide hole 211 which is engaged with the guide post 112. The guide post 112 is also sleeved with a return spring 4, one end of the return spring 4 is fixedly connected with the inner top wall of the chute 111, and the other end is fixedly connected with the top of the slide block 21. By providing the guide post 112 in the chute 111 and providing the guide hole 211 on the slider 21, which is engaged with the guide post 112, the movable block 2 can be kept stable during movement without tilting, and the effect of clamping and positioning the workpiece can be improved.

In this embodiment, the movable block 2 also has a clamping surface 23 that is in contact with the workpiece; the holding surface 23 is stepped and extends in the axial direction of the mounting bush 1. The stepped clamping surface 23 gradually increases from one end close to the workpiece to one end far away from the workpiece; the stepped clamping surface 23 can further adapt to workpieces of different specifications, and in addition, the clamping surface 23 can be subjected to chamfering treatment or the clamping surface 23 is arranged to be a circular arc surface, so that the workpieces can be prevented from being damaged.

In this embodiment, a mounting plate 12 is further formed on one end surface of the mounting sleeve 1, a through hole 121 through which the driving member 3 passes is formed in the mounting plate 12, and a plurality of mounting holes 122 are further formed in the mounting plate 12. The driving member 3 includes a connection rod 31 fitted with the through hole 121, and a driving ball 32 in sliding contact with the driving surface 22. Specifically, the mounting hole 122 is a threaded hole, the whole mounting sleeve 1 can be fixedly mounted on the processing machine tool through bolts, and a piston rod of the hydraulic cylinder is connected with the connecting rod 31; in addition, the driving surface 22 is an arc surface matched with the driving ball 32, so that the contact area between the driving ball 32 and the driving surface 22 is increased, and the driving ball 32 can drive the movable block 2 more accurately.

The working process of the embodiment comprises the steps of firstly sleeving a workpiece on a first-stage clamping surface 23 which is matched relatively according to the size of the workpiece, and then driving a driving piece 3 to move through a hydraulic cylinder, so that a driving ball 32 of the driving piece 3 pushes a movable block 2 outwards, and clamping and positioning the work price from the inner wall of the workpiece.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. The single taper shaft machining tool is characterized by comprising an annular mounting sleeve, a plurality of movable blocks which are arranged on the mounting sleeve in an annular array manner, and a driving piece for driving the movable blocks to move along the radial direction of the mounting sleeve; a plurality of mounting grooves for mounting the movable blocks are formed in the side wall of the mounting sleeve, sliding grooves are formed in the two side walls of the mounting grooves, and sliding blocks matched with the sliding grooves are formed in the two sides of the movable blocks; the movable block is provided with a driving surface which is contacted with the driving piece; the driving surface is an inclined surface extending along the axial direction of the mounting sleeve.

2. The single-taper shaft machining tool according to claim 1, wherein guide posts are further arranged in the sliding grooves, and two ends of each guide post are respectively connected with the inner top wall and the inner bottom wall of each sliding groove; and the sliding block is provided with a guide hole matched with the guide post.

3. The single-taper shaft machining tool according to claim 2, wherein a return spring is further sleeved on the guide post, one end of the return spring is fixedly connected with the inner top wall of the sliding groove, and the other end of the return spring is fixedly connected with the top of the sliding block.

4. The single taper shaft tooling of claim 1, wherein the movable block further has a clamping surface in contact with the workpiece; the clamping surfaces are stepped and extend along the axial direction of the mounting sleeve.

5. The single taper shaft tooling of claim 1, wherein an end face of the mounting sleeve is further formed with a mounting plate, the mounting plate is formed with a through hole through which the driving member passes, and the mounting plate is further formed with a plurality of mounting holes.

6. The single taper shaft tooling of claim 5, wherein the driving member includes a connecting rod mated with the through bore and a driving ball in sliding contact with the driving surface.