CN214685961U

CN214685961U - Ball nut inner raceway grinding frock

Info

Publication number: CN214685961U
Application number: CN202022924961.5U
Authority: CN
Inventors: 王生煦; 张青芬; 杜伟; 李栋; 黄娟
Original assignee: SHANDONG BEST PRECISION CO Ltd
Current assignee: SHANDONG BEST PRECISION CO Ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-11-12
Anticipated expiration: 2030-12-09

Abstract

The utility model relates to a raceway grinding frock in ball nut belongs to frock clamp technical field, including the frock body, the frock body comprises frock body main aspects and frock body tip, the through-hole has been seted up to the internal portion of frock, the inside through-hole part of frock body tip left end sets to semi-open, the inside through-hole part internal diameter of frock body tip right-hand member is less, the less through-hole part of internal diameter is called the tip hole, the tip hole has been seted up to frock body tip inside, a pinhole and three screw hole have been seted up on the excircle of frock body tip, ball nut places in the through-hole, ball nut's nut tip cooperatees with the tip hole of the frock body, the pinhole intercommunication on the hole of turning back on the ball nut and the frock body tip, hole and pinhole that the pinhole fixes a location through a locating pin, the silk is fixed to ball nut in the installation. Adopt the utility model discloses can improve the efficiency of raceway grinding in the ball nut.

Description

Ball nut inner raceway grinding frock

Technical Field

The utility model relates to a raceway grinding frock in ball nut belongs to frock clamp technical field.

Background

In the production process of the ball screw pair, the grinding of the inner raceway of the ball nut is particularly important, each ball nut needs to be clamped and disassembled on a machine tool, and the outer circle and the end face need to be aligned before grinding, which is an important link for ensuring the grinding precision and stability of the inner raceway of the ball nut, but the link takes a large amount of time, and particularly in batch production and processing, higher production efficiency is difficult to ensure.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that exists among the prior art, provide a raceway grinding frock in ball nut that can improve grinding efficiency.

The utility model discloses a realize through following technical scheme:

the utility model provides a raceway grinding frock in ball nut, including the frock body, the frock body comprises frock body main aspects and frock body tip, the through-hole has been seted up to the internal portion of frock, the inside through-hole part of frock body tip left end sets to semi-open, the inside through-hole part internal diameter of frock body tip right-hand member is less, the less through-hole part of internal diameter is called the tip hole, the tip hole has been seted up to frock body tip inside, a pinhole and three screw hole have been seted up on the excircle of frock body tip, ball nut places in the through-hole, ball nut's nut tip cooperatees with the tip hole of frock body, hole and the pinhole intercommunication on frock body tip are turned to on the ball nut, hole and pinhole are fixed a location through a locating pin to hole and pinhole, the jackscrew is fixed ball nut in the downthehole installation.

The positioning pin is inserted into the returning hole of the ball nut through the pin hole, the three jackscrews are simultaneously propped against the outer circle of the small end of the nut, the axial positioning and the circumferential positioning of the ball nut are realized, the inner raceway of the ball nut can be processed after the positioning pin is extracted, and thus, the ball nut does not need to be frequently clamped and disassembled and aligned in batch processing of the ball nut, and the grinding efficiency of the inner raceway of the ball nut is improved.

Preferably, the inner diameter of the inner hole of the small end is the same as the outer diameter of the small end of the nut, and the inner diameter of the through hole is the same as the outer diameter of the large end of the ball nut.

Compared with the prior art, the utility model discloses the beneficial effect who has is:

Drawings

FIG. 1 is a schematic structural view of a tooling body;

FIG. 2 is a schematic view of a ball nut;

fig. 3 is a schematic structural view of the ball nut assembled on the tool body.

In the figure: 1. a tool body; 2. positioning pins; 3. carrying out top thread; 4. a large end of the tool body; 5. a small end inner hole; 6. a ball nut; 7. a small end of the nut; 8. a small end of the tool body; 9. a pin hole; 10. a silk hole; 11. a return hole; 12. and a through hole.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1-3 a ball nut inner raceway grinding frock, including the frock body 1, the frock body 1 comprises frock body main aspects 4 and frock body tip 8, through-hole 12 has been seted up to the frock body 1 inside, the inside through-hole 12 part of frock body tip 8 left end sets to semi-open, the inside through-hole 12 part internal diameter of frock body tip 8 right-hand member is less, the less through-hole 12 part of internal diameter is called tip hole 5, the tip hole 5 has been seted up to frock body tip 8 inside, a pinhole 9 and three screw hole 10 have been seted up on the excircle of frock body tip 8, ball nut 6 places in through-hole 12, nut tip 7 of ball nut 6 cooperatees with the tip hole 5 of frock body 1, the hole 9 intercommunication on the hole 11 that turns back on the ball nut 6 and the pinhole 9 on frock body tip 8, hole 11 and pinhole 9 are fixed a location through a locating pin 2, install jackscrew 3 in screw hole 10 and fix ball nut 6.

The inner diameter of the small end inner hole 5 is the same as the outer diameter of the small end 7 of the nut, and the inner diameter of the through hole 12 is the same as the outer diameter of the large end of the ball nut 6.

The working process is as follows:

the utility model discloses the during operation is earlier with chuck centre gripping frock body main aspects, alignment frock body tip excircle and terminal surface, guarantees the centering nature of the frock body. Put into the through-hole of the frock body with ball nut, then during the tip hole of pushing into the frock body with ball nut, rotate ball nut, when ball nut's the pinhole of returning to the pore pair on the frock body, insert ball nut's the hole that returns to with the locating pin through the pinhole of the frock body, withhold the excircle of nut tip with three jackscrew simultaneously, realize axial positioning and circumference location to ball nut, extract the back with the locating pin, just can process ball nut's interior raceway. Like this in ball nut's batch processing, needn't frequently the clamping with dismantle ball nut and alignment, and use the utility model discloses carry out the alignment to the frock when processing first ball nut, only need operate just can guarantee ball nut to positive after that to locating pin and jackscrew, just so realized improving the efficiency of ball nut inner raceway grinding.

In the description of the present invention, the terms "inside", "outside", "up", "down", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of description of the present invention and does not require the present invention to be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Claims

1. The utility model provides a raceway grinding frock in ball nut which characterized in that: comprises a tool body (1), the tool body (1) consists of a large end (4) of the tool body and a small end (8) of the tool body, a through hole (12) is arranged in the tool body (1), the part of the through hole (12) in the left end of the small end (8) of the tool body is arranged in a semi-open mode, the part of the through hole (12) in the right end of the small end (8) of the tool body has a smaller inner diameter, the part of the through hole (12) with the smaller inner diameter is called a small end inner hole (5), the small end (8) of the tool body is internally provided with a small end inner hole (5), the excircle of the small end (8) of the tool body is provided with a pin hole (9) and three screw holes (10), a ball nut (6) is placed in the through hole (12), the small end (7) of the ball nut (6) is matched with the small end inner hole (5) of the tool body (1), a return hole (11) on the ball nut (6) is communicated with the pin hole (9) on the small end (8) of the tool body, the return hole (11) and the pin hole (9) are positioned through a positioning pin (2), and a jackscrew (3) is arranged in the screw hole (10) to fix the ball nut (6).

2. The ball nut inner raceway grinding tool according to claim 1, characterized in that: the inner diameter of the small end inner hole (5) is the same as the outer diameter of the small end (7) of the nut, and the inner diameter of the through hole (12) is the same as the outer diameter of the large end of the ball nut (6).