CN215281032U

CN215281032U - Adjustable positioning and stopping device for inner cavity hole machining

Info

Publication number: CN215281032U
Application number: CN202121357040.3U
Authority: CN
Inventors: 华宇; 黄勤梁; 王思慧; 窦爱国; 糜伟琦; 傅强
Original assignee: Wuxi Runhe Machinery Co ltd
Current assignee: Wuxi Runhe Machinery Co ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-12-24
Anticipated expiration: 2031-06-18

Abstract

The utility model provides an adjustable location detent of inner chamber spot facing work, includes angle head locking piece and positioner main part, and the positioner main part is installed on lathe spindle drum and partly encircles the main shaft with screw nut, is equipped with positioning groove in the positioner main part, and angle head locking piece partly encircles the angle head in the appearance, and the internal surface is equipped with the stopper that matches with positioning groove on the angle head locking piece, and the outer fringe surface on the angle head locking piece is equipped with fixed slot, and fixed slot agrees with the matching with angle head moment arm. The calibration method and the calibration device simplify the complicated calibration work when workers replace different model angle heads, and reduce the probability of human errors. A more efficient and simple angular head positioning method is realized.

Description

Adjustable positioning and stopping device for inner cavity hole machining

Technical Field

The utility model relates to an adjustable location detent of inner chamber spot facing work of large-scale mechanical part especially is used for aeroengine machine casket hole machining technical field.

Background

The compressor casing is a difficult point in the processing of modern aeroengine parts due to the complex design structure (the surface is provided with a plurality of special-shaped hole sites), high hardness of materials, difficult processing, high requirement on dimensional precision and the like. Because of the structural particularity of the inner cavity hole of the casing, a machining center is usually adopted to match with a mechanical angle head to enter the inner cavity of the casing for machining. Therefore, the stability, accuracy and high efficiency of the angle head installation are guaranteed for efficiently and accurately machining the inner cavity hole of the casing. The angle head is an accessory of a machine tool, and the rotation center line of a cutter can form an angle with the rotation center line of the main shaft to process a workpiece after the angle head is arranged on the machine tool. The method is applied to various fields of machining of aviation, automobiles, molds and the like. The angle head is used, so that the processing range and the adaptability of the machine tool can be enlarged without changing the structure of the machine tool; machining center and planer type milling machine, wherein the light type milling machine can be arranged in the tool magazine and can be freely switched between the tool magazine and the main shaft of the machine tool; the medium-sized and heavy-sized machines have larger rigidity and torque, and can be suitable for most machining requirements. Because of the angle head expands the service performance of the machine tool, the angle head is equivalent to adding a shaft for the machine tool, and is more practical than a fourth shaft even under the condition that some large-scale workpieces are not easy to turn over or have high precision requirements.

In the prior art, when the angle head is installed, the moment wall of the angle head is fixed at a designated position through a stop block, so that the rotation is avoided. When the stop block is installed, the perpendicularity of the clamping groove needs to be adjusted to ensure the position accuracy of the angle head. However, in actual work, the traditional angle head stop block is not stably connected with the angle head, and when the machining allowance is large, the traditional angle head stop block is easy to shake, so that the machining quality of a workpiece is affected. Meanwhile, in order to adapt to processing of inner cavity holes of different products and specifications, angle heads of different models are required to be used, the traditional stop block can only be suitable for the angle head of a single model and specification, the stop block needs to be re-calibrated every time of re-installation, actual operation is very complicated, and workload is large.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose, for overcoming above-mentioned processing difficulty, to using the first processing machine casket hole of angle to add the problem that exists, according to the structure size of this main lathe (machining center etc.) main shaft in middle of this, designed one set of adjustable positioning device (fig. 1), convenient and fast when changing different model angle heads, the location is good moreover.

The technical scheme of the utility model, an adjustable location detent of inner chamber spot facing work, including angle head locking piece and positioner main part, the positioner main part is installed on the lathe spindle drum with screw nut and partly encircles the main shaft, is equipped with positioning groove in the positioner main part, and angle head locking piece partly encircles the angle head in the appearance, and the internal surface is equipped with the stopper that matches with positioning groove on the angle head locking piece, and the outer fringe surface on the angle head locking piece is equipped with fixed slot (draw-in groove B), and fixed slot agrees with the first moment arm of angle and matches (inserts the matching).

The side face of the angle head locking block fixing clamping groove is additionally provided with a fastening screw hole for locking the angle head moment arm clamping block, so that the stability is improved.

The angle head locking block is provided with angle head locking blocks of various specifications (different angles and sizes), the angle head locking block and the positioning device main body are fixed by a precision clamping groove, and the angle head locking blocks with different angles can be quickly replaced to adapt to angle heads of different models.

And fixing the positioning device main body at the position of the machine tool main shaft, and adjusting the position. When the angle head is needed to be used in the machining process, the installation of the angle head can be quickly finished and the position precision is ensured only by additionally installing the angle head locking block corresponding to the model of the angle head.

The utility model discloses especially, be used for the processing of compressor machine casket, the working process is, and this adjustable positioner includes the quick change angle head locking piece of positioner main part and polytypic specification. When the angle head is needed to be used, the positioning device main body is fixedly connected with the machining center main shaft, then the quick-change angle head locking block corresponding to the angle head is selected to be installed and fixed on the positioning device main body, and finally the angle head is installed for machining.

Has the advantages that: when specifically implementing the utility model discloses combine machining center main shaft model, optimized traditional angle head stop block. The stability of the angle head is improved when the inner cavity hole is machined by using the fastening screw; moreover, the locking blocks of different angle heads can be quickly replaced, so that the device can adapt to different types of angle heads; the processing efficiency and the quality of the inner cavity hole of the casing are improved. When in use, the utility model can firstly facilitate the workers to quickly install the positioning angle head; meanwhile, the mounting position precision of the angle head is ensured, and the mounting stability of the angle head is improved; and the complicated calibration work of workers during changing different types of angle heads is simplified, and the probability of human error is reduced. The method realizes a more efficient and simple angle head positioning method, ensures the high efficiency and stability of the inner cavity hole of the casing, and ensures that the machining quality of the casing meets the design requirement. But of course also for machining other larger mechanical pieces.

Drawings

FIG. 1 is a 3D view of an adjustable positioning and stopping device for machining an inner cavity hole of a compressor casing according to the present application;

FIG. 2 is an adjustable positioning stop;

FIG. 3 is a positioning device body;

fig. 4 shows an adjustable (quick-change) angle head locking block.

Detailed Description

The operation of the present invention will be briefly described with reference to the accompanying drawings:

the machine tool comprises a machine tool spindle 1, an angle head 2, an angle-adjustable head locking block 3, a positioning device body 4, a clamping groove A5 and a clamping groove B6. A clamping groove B6 in the angle-adjustable (quick-change) head locking block, a limiting block 7 and a locking threaded hole 8.

Firstly, connecting a positioning device main body (figure 3) with a main shaft of a machining center, marking the perpendicularity of a precision calibration clamping groove A, and fixing and locking by using screws; then, the adjustable (quick-change) angle head locking block (figure 4) is connected with the positioning device main body, and the limiting block is inserted into the clamping groove A for positioning and is fixed and locked by screws. And similarly, the perpendicularity of the precision clamping groove B is checked by marking a meter, and whether the machining requirement is met or not is confirmed. And finally, installing an angle head, connecting the driving tool shank with the main shaft, clamping a moment arm of the angle head into the precision clamping groove B, and locking by using a fastening screw. After the angle head is installed, the angle head can be processed.

Claims

1. The utility model provides an adjustable location detent of inner chamber spot facing work, characterized by, including angle head locking piece and positioner main part, the positioner main part is installed on lathe spindle drum and partly encircles the main shaft with screw nut, is equipped with positioning groove in the positioner main part, and angle head locking piece is partly around the angle head in the appearance, and the internal surface is equipped with the stopper that matches with positioning groove on the angle head locking piece, and the outer fringe surface on the angle head locking piece is equipped with fixed slot, and fixed slot agrees with the first moment arm of angle and matches.

2. The adjustable positioning and stopping device for processing the inner cavity hole as claimed in claim 1, wherein a fastening screw hole is additionally arranged on the side surface of the fixed clamping groove of the angle head locking block.

3. The adjustable positioning and stopping device for processing the inner cavity hole as claimed in claim 1, wherein the device is provided with angle head locking blocks with various specifications, and the angle head locking blocks and the positioning device body are fixed by precision clamping grooves.