CN212600434U

CN212600434U - Shaft disc part clamping tool with small tool retracting space

Info

Publication number: CN212600434U
Application number: CN202021841420.XU
Authority: CN
Inventors: 李伟; 鲍宏峰; 宋艳东; 孟卫平
Original assignee: Taizhong Yuye Changzhi Hydraulic Industry Co ltd
Current assignee: Taizhong Yuye Changzhi Hydraulic Industry Co ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-02-26
Anticipated expiration: 2030-08-28

Abstract

The utility model provides a tight frock of reel class part clamp that tool retracting space is little belongs to frock clamp technical field, the utility model discloses a set up two round pin axles with one heart on the base and guarantee that its location benchmark with the part keeps unanimous, utilize the conical surface to compress tightly the part through setting up taper screw, reduced the height that the screw stretches out the part terminal surface, solved the problem of reel class part with the hobbing cutter space undersize, guaranteed the machining precision requirement of part simultaneously.

Description

Shaft disc part clamping tool with small tool retracting space

Technical Field

The utility model belongs to the technical field of frock clamp, specifically a tight frock of shaft disc class part clamp that the space of moving back the sword is little.

Background

In the machining process, the tool retracting space of a plurality of shaft and disc part parts is small, and even no tool retracting space exists, so that a pressing plate, a pressing block, a standard fastener and the like which are commonly used for clamping and positioning the parts cannot be used, the parts cannot be connected with a tool or the machining position of the tool is influenced after the parts are connected, the drawing size requirement cannot be met, and the clamping tool which can clamp and does not influence the machining size of the tool under the condition that the tool retracting space is small is needed.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes prior art's is not enough, provides a tight frock of shaft disc class part clamp that moves back the sword space is little, and the purpose is solved shaft disc class part because the frock that moves back the little cause in sword space can't press from both sides tightly or press from both sides the inaccurate problem of tight back cutter processing.

In order to achieve the above purpose, the present invention is achieved by the following technical solutions.

The utility model provides a tight frock of reel class part clamp that space of moving back sword is little, includes the base of fixed mounting on the lathe, is applicable to the reel class part that adopts the centre bore location, the upper and lower both ends of base are provided with the round pin axle, the round pin axle sets up with one heart, be provided with the location structure that is used for fixing a position the part on the base, the shape of location structure and the shape phase-match of part location portion, be provided with the tapering screw on the terminal surface of base, be used for with base and part fixed clamp are tight, the size of tapering screw with the aperture of mounting hole suits, the tapering of tapering screw needs to satisfy the demand in space of moving back the sword.

Further, the positioning structure is a boss.

Further, the cross-sectional shape of the base is circular.

Compared with the prior art, the utility model beneficial effect who has is: the conical surface is used for compressing the part by setting the taper screw, so that the height of the screw extending out of the end face of the part is reduced, the problem that the space between the shaft disc part and the hob is too small is solved, and the requirement on the machining precision of the part is met.

Drawings

FIG. 1 is a schematic view of the part and hob machining position;

FIG. 2 is a top view of the clamping tool for shaft disc type parts with small tool retracting space;

FIG. 3 is a rotated view along A-A of FIG. 2;

FIG. 4 is a schematic structural view of the assembly completion of the shaft disc type part clamping tool with small tool retracting space and the parts of the present invention;

fig. 5 is a schematic structural view of a taper screw.

The tool comprises a spline shaft 1, a spline hob 2, a mounting hole 3, a circular groove 4, a lightening hole 5, a part base 6, a tool base 11, a first pin shaft 12, a second pin shaft 13, a boss 14, a mounting hole 15, a threaded hole 16, a taper screw 17 and a nut 18.

Detailed Description

In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.

As shown in fig. 1, the shaft part adopting the center positioning comprises a circular part base 6 and a spline shaft 1 arranged on the part base 6, wherein a circular groove 4 and a lightening hole 5 are formed at the lower end of the part base 6, eight phi 13 mounting holes 3 are uniformly formed in the part base 6 along the circumferential direction, the effective processing length of the spline on the spline shaft 1 is long, the lowest point of a spline hob 2 and the height direction of the upper end face of the part base 6 are only 3.5mm, at the moment, if a national standard fastener is selected, a standard bolt of M12 needs to be selected for the mounting hole 1, the length of a top cap of the standard bolt is 12mm, the standard bolt interferes with the spline hob, and the machining cannot be performed, so that a pressing plate or a bolt nut cannot be adopted for pressing the part and the tool.

As shown in fig. 2 and 3, be used with the cooperation of fig. 1 part the utility model discloses press from both sides tight frock, including fixture base 11, fixture base 11's upper and lower both ends are provided with first round pin axle 12 and second round pin axle 13 respectively with the heart, are provided with boss 14 between fixture base 11 and second round pin axle 13 for play the positioning action with the locating hole cooperation of part, first round pin axle 12 is through the clamp with base fixed mounting in the main shaft of lathe (not shown in the figure), processing the utility model discloses adopt the centre bore location of first round pin axle 12 and second round pin axle 13 during the frock, keep unanimous with the location benchmark of part. Two mounting holes 15 with the diameter of 13mm and two threaded holes 16 with the diameter of M12 are symmetrically arranged on the end face of the tool base 11 along the radial direction, the mounting holes 15 and the threaded holes 16 are distributed at 90 degrees, the mounting holes 3 are matched with nuts 18 and self-developed taper screws 17 to fixedly clamp the base and the part to finish assembly, and as shown in FIG. 4, when the tool base is disassembled, two M12 bolts are screwed into the two threaded holes 16 from the lower end of the base 11 to eject the part.

As shown in fig. 5, a taper of 1: the taper screw 17 of 20, the purpose is to cooperate the mounting hole 3 of the part, its maximum diameter is processed into four kinds of specifications: phi 13.3 +/-0.02, phi 13.2 +/-0.02, phi 13.1 +/-0.02 and phi 13 +/-0.02, selecting two symmetrical mounting holes 1 on a part to mount taper screws, and selecting two taper screws to enable the maximum diameter of the two taper screws to be 0.1mm larger than the actual diameter of the mounting holes 1 according to the actual diameter of the mounting holes 1, so that a pressing force can be applied to the part when the taper screws are tightened, and the height of the screws can be guaranteed not to exceed 1mm of the end face of the part all the time, so that the tool retracting space between a hob and the end face of the part can be guaranteed.

The above description is for further details of the present invention with reference to specific preferred embodiments, and it should not be understood that the embodiments of the present invention are limited thereto, and it will be apparent to those skilled in the art that the present invention can be implemented in a plurality of simple deductions or substitutions without departing from the scope of the present invention, and all such alterations and substitutions should be considered as belonging to the present invention, which is defined by the appended claims.

Claims

1. The utility model provides a tight frock of shaft disc part clamp that space of moving back sword is little, includes the base of fixed mounting on the lathe, be provided with the mounting hole on the base, its characterized in that, the upper and lower both ends of base are provided with the round pin axle, the round pin axle sets up with one heart, be provided with the location structure that is used for fixing a position the part on the base, the shape of location structure and the shape phase-match of part location portion, be provided with the tapering screw on the terminal surface of base, be used for with base and part fixed clamp are tight, the size of tapering screw with the aperture of mounting hole suits, the tapering of tapering screw satisfies the demand that moves back the sword space.

2. The shaft disc part clamping tool with small tool retracting space as claimed in claim 1, wherein the positioning structure is a boss.

3. The tool for clamping the shaft disc type part with the small tool retracting space as claimed in claim 1, wherein the cross section of the base is circular.