CN108655774B

CN108655774B - Working method of machining tool table for airplane titanium alloy parts

Info

Publication number: CN108655774B
Application number: CN201810382020.8A
Authority: CN
Inventors: 尹佳; 田斌; 林欣
Original assignee: Xian Aircraft Industry Group Co Ltd
Current assignee: Xian Aircraft Industry Group Co Ltd
Priority date: 2018-04-25
Filing date: 2018-04-25
Publication date: 2020-06-30
Anticipated expiration: 2038-04-25
Also published as: CN108655774A

Abstract

The invention relates to a working method of a machining tool table for an airplane titanium alloy part. The workbench comprises four parts, namely a base adjusting and fixing mechanism, a left lifting and pressing mechanism, a right lifting and pressing mechanism and an X-direction pressing mechanism, wherein the left lifting and pressing mechanism and the right lifting and pressing mechanism are fixedly arranged on the base adjusting and fixing mechanism and form a thread transmission and spline transmission matching relation with the base adjusting and fixing mechanism, and the X-direction pressing mechanism is fixedly arranged on the base adjusting and fixing mechanism. The multi-surface machining device can be manually and quickly adjusted, automatic adjustment of clamping size and position and clamping of set load are realized by driving equipment through the motor, and multi-surface machining is realized by driving a blank to lift and rotate through the motor.

Description

Working method of machining tool table for airplane titanium alloy parts

Technical Field

The invention belongs to the field of machine manufacturing, and particularly relates to a working method of a machining tool table for an airplane titanium alloy part, which is an auxiliary device for machining the part by a machine tool.

Background

Before machining the machined part with the machine tool, the blank needs to be fixed on the working plane of the machine tool. The existing method for fixing the part blank mainly utilizes a threaded pressing plate to fix the part blank on a working plane of a machine tool, a worker needs to manually tighten and fix the part blank by using a wrench, the operation is troublesome, the pressing force of each time is inconsistent, and the pressing force of the pressing plate on different positions on the same part blank is inconsistent, so that the fitting degree of each part and the working plane of the machine tool is different. In addition, the positioning positions of the machining of each part are not consistent, so that even the machining accuracy of the same part in the same batch can be greatly different.

The airplane structure uses a large amount of titanium alloy materials, and airplane titanium alloy parts are difficult to process, easy to deform and complex in part structure. At present, when a titanium alloy part is machined in a factory, a blank is fixed on a working surface of a machine tool, a first surface is roughly machined, a second surface is machined, and after heat treatment, the first surface and the second surface are finely machined, so that one part needs to be repeatedly clamped, and a large amount of work is brought. The clamping mode of the parts is that bolt pressing plates are adopted, the working strength of workers is high, the clamping time of the large-point parts can even exceed 4 hours, and the clamping efficiency is low. Because the tolerance range of the titanium alloy parts of the airplane type is small, the precision is high, and the repeated clamping brings great errors, the parts are scrapped out of tolerance, and serious loss is brought to a factory.

Disclosure of Invention

The invention aims to solve the problems mentioned in the background technology, and provides a working method of a machining tool table for an airplane titanium alloy part, which adopts manual small-amplitude quick adjustment, a motor drives equipment to still realize automatic adjustment of clamping size and clamping position of a part blank to be machined, and uses the combination of the motor and a pressure sensor to realize the clamping of set load, the motor drives the blank to complete actions of lifting, rotating, repeated clamping and the like, so as to realize one-time part clamping and finish the thought of a multi-surface machining task, and the adopted technical scheme is as follows:

a working method of a machining tool table for an airplane titanium alloy part comprises the following steps:

the machining tool table comprises four parts, namely a base adjusting and fixing mechanism, a left lifting and pressing mechanism, a right lifting and pressing mechanism and an X-direction pressing mechanism, wherein the base adjusting and fixing mechanism is fixed on a working platform of a machine tool through screws, the left lifting and pressing mechanism and the right lifting and pressing mechanism are fixed on the base adjusting and fixing mechanism through screws and form a thread transmission matching connection relation and a spline transmission and sliding matching connection relation with the base adjusting and fixing mechanism, and the X-direction pressing mechanism is divided into four parts and is fixed on the base adjusting and fixing mechanism through screws.

Placing a part blank to be processed on a base mounting plate, and then connecting an X-direction adjusting seat and a pin shaft hole of an X-direction pressing upright column by using a pin shaft, thereby completing the quick installation of two sets of X-direction pressing mechanisms at the front part;

rotating the X-direction lifting fixing handle, adjusting the X-direction lifting table to a proper height, reversely rotating the X-direction lifting fixing handle to lock the X-direction pressing upright post, recording the size according to the scale on the side surface of the X-direction pressing upright post, then rotating the X-direction adjusting fixing handle, adjusting the X-direction pressing linear guide rail to a proper position, and reversely rotating the X-direction adjusting fixing handle to lock the X-direction pressing linear guide rail;

if the length of the part blank to be processed is longer or shorter, a Y-direction adjusting hand wheel can be rotated to adjust the distance between the left pressing plate attachment layer and the right pressing plate attachment layer, a Y-direction adjusting fixed handle is rotated after the distance is proper to lock a Y-direction adjusting lead screw, and the size is recorded according to a Y-direction adjusting scale;

if the Y-direction clamping height is not proper, the lifting motor is controlled to adjust the left pressing plate and the right pressing plate to ascend or descend for the same distance, and when the Y-direction clamping height is properly adjusted, the rotating angle and the direction output by the lifting motor are recorded;

after the adjustment is finished, preparing to start to quickly tighten a part blank to be processed, firstly controlling a Y-direction adjusting motor to rotate in a forward direction to drive a left lifting pressing mechanism and a right lifting pressing mechanism to gradually approach, when a left pressure sensor and a right pressure sensor both output pressure values and the pressure values are close, and the part blank to be processed does not move any more, controlling the Y-direction adjusting motor to rotate in a reverse direction for setting an angle, so that a left pressing plate attachment layer and a right pressing plate attachment layer generate certain gaps with the part blank to be processed, and then controlling the Y-direction adjusting motor to stop rotating;

then controlling an X-direction adjusting motor to rotate in the forward direction to drive a front set of X-direction pressing mechanism and a rear set of X-direction pressing mechanism of the same X-direction adjusting linear guide rail to gradually approach, outputting pressure values when the front X-direction pressing plate layer or the rear X-direction pressing plate layer is attached, and controlling the X-direction adjusting motor to stop rotating when the part blank to be processed does not move any more when the pressure values are similar;

then controlling a Y-direction adjusting motor to rotate forwardly, and when the left pressure sensor and the right pressure sensor output pressure values which are similar to each other and the part blank to be processed does not move any more, controlling the Y-direction adjusting motor to stop rotating, and then starting a machine tool to process the upper surface of the part blank;

after one surface of the part is machined by the standby machine, controlling an X-direction adjusting motor to rotate reversely for a set angle, enabling the front and back X-direction pressing plate attached layers to generate a certain gap with a part blank to be machined, and then controlling the X-direction adjusting motor to stop rotating;

controlling the lifting motor to rotate in the forward direction, driving the left pressing plate and the right pressing plate to rise for the same distance, and recording the rotating angle and the direction output by the lifting motor;

then controlling a rotating motor to rotate forward for setting an angle, and driving a left pressing sleeve, a left pressure sensor, a left mounting and fixing cover, a left pressing plate attaching layer, a right pressing plate, a right mounting and fixing cover, a right pressure sensor, a right pressing sleeve and a part blank to rotate together for setting an angle;

then controlling the lifting motor to rotate reversely to drive the left pressing plate and the right pressing plate to descend for the same distance, and after the part blank is contacted with the base mounting plate, controlling the lifting motor to stop rotating and recording the rotating angle and the direction output by the lifting motor;

then controlling an X-direction adjusting motor to rotate in the forward direction to drive a front set of X-direction pressing mechanism and a rear set of X-direction pressing mechanism of the same X-direction adjusting linear guide rail to gradually approach, outputting pressure values when the front surface or the rear X-direction pressing plate attached layer is close to each other, controlling the X-direction adjusting motor to stop rotating when a part blank to be processed does not move any more, and then starting a machine tool to process the other surface of the part blank;

by analogy, a plurality of surfaces of the part blank can be processed;

when the part blank needs to be taken down after one or more surfaces are machined, the main shaft of the machine tool stops rotating, then the X-direction adjusting motor is controlled to rotate reversely for a set angle, so that a certain gap is formed between the front X-direction pressing plate attachment layer and the rear X-direction pressing plate attachment layer and the part blank to be machined, and then the X-direction adjusting motor is controlled to stop rotating;

then the Y-direction adjusting motor is controlled to rotate reversely for a set angle, so that a certain gap is formed between the left pressing plate attachment layer and the right pressing plate attachment layer and the part blank to be processed, and then the Y-direction adjusting motor is controlled to stop rotating, so that the clamping state of the part blank can be released;

and then the pin shaft between the front end X-direction adjusting seat and the X-direction pressing upright post is taken down, two sets of X-direction pressing mechanisms at the front part are taken down, the part blank is taken down from the base mounting plate, and then other parts can be continuously processed.

The invention has the following advantages:

1. the marking positioning hole of the base mounting plate is referred to, and the base adjusting and fixing mechanism can be rapidly positioned and fixed at the same position relative to the machine tool working platform by matching with the rotary base fixing handle, so that the repeatability of the processing flow of the same type of parts is improved, and the consistency of the parts is improved.

2. The use of the chuck fixing seat is convenient for the disassembly and the assembly of the chuck and the replacement of the chucks with different specifications, thereby improving the applicability and the flexibility of the processing of the cylinder blank.

3. The manual adjusting mechanism adopts parts such as a fixed handle, a hand wheel and the like to realize the adjustment of the size of the mechanism and the locking of the structure, and can realize manual quick adjustment to adapt to the change of a clamping position for the machining of parts with larger or smaller sizes.

4. Aiming at the parts with the sizes within the set range, the clamping positions of the left lifting and pressing mechanism and the right lifting and pressing mechanism can be automatically and rapidly adjusted by controlling the Y-direction adjusting motor and the lifting motor.

And 5, the Y-direction adjusting scale and the X-direction pressing stand column with scales are used, and the records of the rotating angle and the direction are output in the processing process of the lifting motor, so that the same adjusting amount is adopted for processing the same part later, and the quick adjustment is realized, thereby improving the processing efficiency and the processing consistency of the same part.

And 6, the Y-direction adjusting motor, the Y-direction adjusting positive and negative tooth screw rod, the X-direction adjusting motor, the X-direction adjusting positive and negative tooth screw rod and other parts are combined for use, so that the whole set of equipment can automatically adapt to the fixing and clamping requirements of parts within a certain size range.

And 7, the Y-direction adjusting motor, the X-direction adjusting motor, the left pressure sensor, the right pressure sensor and the X-direction pressure sensor are combined for use, so that the X-direction and Y-direction automatic and rapid clamping of the part can be realized, the clamping force of each time is ensured to be a set value, and the processing consistency of the same part and the clamping efficiency of the part are improved.

The X attaches the layer to the clamp plate, the left side clamp plate attaches the layer and attaches the layer with the right side clamp plate and adopt the rough rubber of taking the line of surface to make for under the prerequisite that keeps clamping-force and frictional force, reduce the damage to the part surface, improve the processingquality of part.

9. The lifting motor, the rotating motor and the matched parts are used, so that the part can be clamped at one time, and the processing of a plurality of surfaces can be automatically completed, thereby improving the processing efficiency and the processing quality of the part.

Drawings

FIG. 1: the invention relates to an integral structure diagram of a working method of a machining tool table for an airplane titanium alloy part;

FIG. 2: the invention discloses an integral forward side view of a base adjusting and fixing mechanism;

FIG. 3: the invention discloses an integral reverse side view of a base adjusting and fixing mechanism;

FIG. 4: the invention relates to an integral forward side view of a left lifting and pressing mechanism;

FIG. 5: the invention relates to an integral reverse side view of a left lifting pressing mechanism;

FIG. 6: the invention discloses a partial sectional view of a left lifting pressing mechanism;

FIG. 7: the invention relates to an integral forward side view of a right lifting pressing mechanism;

FIG. 8: the invention relates to an integral reverse side view of a right lifting pressing mechanism;

FIG. 9: the invention discloses a partial sectional view of a right lifting pressing mechanism;

FIG. 10: the invention relates to an integral structure diagram of an X-direction pressing mechanism;

FIG. 11: the invention relates to a partial cross section of an X-direction pressing mechanism.

1. A base adjusting and fixing mechanism, 2, a left lifting and pressing mechanism, 3, a right lifting and pressing mechanism, 4. an X-direction pressing mechanism, 1.1, a base mounting plate, 1.2, a front fixing side plate, 1.3, a rear fixing side plate, 1.4, a left fixing side plate, 1.5, a right fixing side plate, 1.6, a base fixing handle, 1.7, a Y-direction adjusting motor, 1.8, a Y-direction adjusting reducer, 1.9, a Y-direction adjusting linear guide rail, 1.10, a Y-direction adjusting linear guide rail slider, 1.11, a Y-direction adjusting positive and negative tooth lead screw, 1.12, a lifting and adjusting spline shaft, 1.13, an X-direction adjusting motor, 1.14, an X-direction adjusting linear guide rail, 1.15, an X-direction adjusting linear guide rail, 1.16, an X-direction adjusting linear guide rail slider, 1.17, an X-direction adjusting positive and negative tooth lead screw, 1.18, an X-direction adjusting seat, 1.19, a lifting motor, 1.20, a lifting and lifting chuck, 1.21, a left lifting and pressing mechanism, 2.1.1.2, a left lifting, 2.4. a left lifting linear guide rail sliding block, 2.5 a left lifting screw rod, 2.6 a left lifting driven bevel gear, 2.7 a left lifting driving bevel gear, 2.8 a left pressing plate, 2.9 a left pressing plate attached layer, 2.10 a rotating motor, 2.11 a rotating speed reducer, 2.12 a left spline shaft sleeve, 2.13 a rotating motor mounting seat, 2.14 a rotating shaft, 2.15 a left pressing sleeve, 2.16 a left pressure sensor, 2.17 a left mounting fixing cover, 3.1 a right support, 3.2 a right lifting table, 3.3 a right lifting linear guide rail, 3.4 a right lifting linear guide rail sliding block, 3.5 a right lifting screw rod, 3.6 a right lifting driven bevel gear, 3.7 a right lifting driving bevel gear, 3.8 a right pressing plate, 3.9 a right pressing plate attached layer, 3.10 a Y-direction adjusting screw rod, 3.11 a Y-direction adjusting clamping plate, 3.12 a Y-direction adjusting gauge sleeve, 3.13.14 a Y-direction adjusting scale sleeve, and 14 a handle, 3.15Y direction adjusting hand wheel, 3.16 right side spline shaft sleeve, 3.17 right side installation fixed cover, 3.18 right side pressure sensor, 4.1X direction pressing upright post, 4.2X direction elevating platform, 4.3X direction pressing linear guide rail, 4.4X direction pressing linear guide rail slide block, 4.5X direction lifting fixed handle, 4.6X direction adjusting fixed handle, 4.7X direction pressing installation sleeve, 4.8X direction installation handle, 4.9X direction pressure sensor, 4.10X direction installation fixed cover, 4.11X direction installation post, 4.12X direction pressing plate, 4.13X direction pressing plate attachment layer.

Detailed Description

The invention is further illustrated by the following figures and examples:

as shown in fig. 1-11, the working method of the aircraft titanium alloy part processing tool table according to the present invention includes four major parts, namely a base adjusting and fixing mechanism 1, a left lifting and pressing mechanism 2, a right lifting and pressing mechanism 3, and an X-direction pressing mechanism 4, wherein the base adjusting and fixing mechanism 1 is fixed on a working platform of a machine tool by screws, the left lifting and pressing mechanism 2 and the right lifting and pressing mechanism 3 are fixed on the base adjusting and fixing mechanism 1 by screws, and form a screw thread transmission fit connection relationship and a spline transmission and sliding fit connection relationship with the base adjusting and fixing mechanism 1, and the X-direction pressing mechanism 4 is divided into four parts and is fixed on the base adjusting and fixing mechanism 1 by screws; wherein the base adjusting and fixing mechanism 1 mainly comprises a base mounting plate 1.1, a front fixed side plate 1.2, a rear fixed side plate 1.3, a left fixed side plate 1.4, a right fixed side plate 1.5, a base fixed handle 1.6, a Y-direction adjusting motor 1.7, a Y-direction adjusting reducer 1.8, a Y-direction adjusting linear guide rail 1.9, a Y-direction adjusting linear guide rail slider 1.10, a Y-direction adjusting positive and negative tooth lead screw 1.11, a lifting adjusting spline shaft 1.12, an X-direction adjusting motor 1.13, an X-direction adjusting reducer 1.14, an X-direction adjusting linear guide rail 1.15, an X-direction adjusting linear guide rail slider 1.16, an X-direction adjusting positive and negative tooth lead screw 1.17, an X-direction adjusting seat 1.18, a lifting motor 1.19, a lifting reducer 1.20 and a chuck fixing seat 1.21, the upper surface of the base mounting plate 1.1 is symmetrically provided with a plurality of positioning hole marks, a kidney holes and kidney-shaped sink grooves, a step-shaped central position is arranged on the upper surface, and a mounting groove, two sides of a central counter bore along the X-axis direction are provided with guide rail mounting grooves, two rectangular grooves are arranged on two sides of the X-direction guide rail mounting groove, a row of threaded holes are respectively arranged on the front side, the back side, the left side and the right side, a lead screw mounting through hole and a spline shaft mounting through hole are arranged on the left side and the right side along the Y-axis direction, the inner side of the front fixed side plate 1.2 is provided with two bearing mounting holes, the middle lower part is provided with a row of counter bores and a row of threaded holes, mounting screws are arranged in the counter bores and are fixedly mounted on a base mounting plate 1.1, a base fixed handle 1.6 is mounted in the threaded holes, the threaded end of the base fixed handle 1.6 faces the base mounting plate 1.1, bearings are mounted in the inner side mounting holes and support one end of a cylindrical boss for adjusting the lead screws 1.17 with positive and negative teeth in the X-direction, the upper part, mounting screws in counter bores and mounting and fixing the counter bores on a base mounting plate 1.1, mounting a base fixing handle 1.6 in threaded holes, enabling the threaded end of the base fixing handle 1.6 to face the base mounting plate 1.1, mounting a bearing at the large-diameter part of the step bore, enabling the small-diameter part to penetrate through one end of a cylindrical boss with a key slot of an X-direction adjusting positive and negative screw rod 1.17, opening a step bore at the upper part of a left-direction fixing side plate 1.4, arranging the threaded holes by taking the step bore as the center circumference, opening a row of counter bores and a row of threaded holes at the middle lower part, mounting the screws in the counter bores and mounting and fixing the screw rod on the base mounting plate 1.1, mounting a base fixing handle 1.6 in the threaded holes, enabling the threaded end of the base fixing handle 1.6 to face the base mounting plate 1.1, mounting the bearing at the large-diameter part of the step bore, enabling the small-diameter part to penetrate through one end of the Y-direction adjusting positive and negative screw, the middle lower part is provided with a row of counter bores and a row of threaded holes, screws are arranged in the counter bores and are fixedly arranged on a base mounting plate 1.1, a base fixing handle 1.6 is arranged in the threaded holes, the threaded end of the base fixing handle 1.6 faces the base mounting plate 1.1, a bearing is arranged in the inner side mounting hole and is fixedly arranged on one end of a cylindrical boss of a Y-direction adjusting positive and negative screw rod 1.11 and a lifting adjusting spline shaft 1.12, the shell of the Y-direction adjusting speed reducer 1.8 is fixedly connected with the shell of the Y-direction adjusting speed reducer 1.8 by the input end of the screw, the output end of the Y-direction adjusting speed reducer is fixedly connected with a left-direction fixing side plate 1.4, the input shaft of the Y-direction adjusting speed reducer is fixedly connected with the output shaft of a Y-direction adjusting motor 1.7 by a key connection, the output hole is fixedly connected with the Y-direction adjusting positive and negative screw rod 1, a Y-direction adjusting linear guide rail sliding block 1.10 is arranged on the X-direction adjusting speed reducer 1.14, the shell of the X-direction adjusting speed reducer is fixedly connected with the shell of an X-direction adjusting motor 1.13 by the input end of a screw, the output end of the X-direction adjusting speed reducer is fixedly connected with a backward fixed side plate 1.3, the input shaft of the X-direction adjusting speed reducer is fixedly connected with the output shaft of the X-direction adjusting motor 1.13 by a key connection, the output hole is fixedly connected with an X-direction adjusting positive and negative tooth lead screw 1.17 by a key connection, an X-direction adjusting linear guide rail 1.15 is fixed on a guide rail mounting groove of a base mounting plate 1.1 along the X-axis direction by a screw, an X-direction adjusting linear guide rail sliding block 1.16 is arranged on the X-direction adjusting base 1.18, the upper surface of the X-direction adjusting base is provided with a counter bore, one side is provided with a threaded hole, the side surface of, the shell of the lifting speed reducer 1.20 is fixedly connected with the shell of the lifting motor 1.19 by using a screw input end, the output end is fixedly connected with the left-direction fixed side plate 1.4, an input shaft of the lifting speed reducer is fixedly connected with an output shaft of the lifting motor 1.19 by using a key connection, an output hole is fixedly connected with the lifting adjusting spline shaft 1.12 by using a key connection, the upper surface of the chuck fixing seat 1.21 is provided with a plurality of threaded holes and counter bores, screws are installed in the counter bores and are installed and fixed in stepped counter bores in the center of the base mounting plate 1.1, and corresponding chucks can be fixed by using the threaded holes according to actual conditions; the left lifting and pressing mechanism 2 mainly comprises a left bracket 2.1, a left lifting platform 2.2, a left lifting linear guide rail 2.3, a left lifting linear guide rail slider 2.4, a left lifting screw rod 2.5, a left lifting driven bevel gear 2.6, a left lifting driving bevel gear 2.7, a left pressing plate 2.8, a left pressing plate attachment layer 2.9, a rotating motor 2.10, a rotating speed reducer 2.11, a left spline shaft sleeve 2.12, a rotating motor mounting seat 2.13, a rotating shaft 2.14, a left pressing sleeve 2.15, a left pressure sensor 2.16 and a left mounting and fixing cover 2.17, wherein counterbores are arranged on two sides of the left bracket 2.1 along the Z-axis direction, screws are mounted in the counterbores and fixed on the Y-direction adjusting linear guide rail slider 1.10, a through groove is arranged in the middle position of the front of the left lifting and a step hole is arranged on one side of the through groove along the Z-axis direction, a bearing is arranged on the large-diameter part of the step hole, and a small-diameter part of the left, the big diameter part of the step hole at the lower part is provided with a bearing, the small diameter part passes through one end of a cylindrical boss with a key slot of a left lifting screw rod 2.5, two sides of a through groove are respectively provided with a row of threaded holes positioned at the outer side of the step hole, the left lifting linear guide rail 2.3 is fixedly installed by utilizing a screw, the boss at the lower part is provided with a threaded hole and a step hole, wherein the step hole is positioned below the previous step hole, the big diameter part of the step hole is provided with the bearing, the small diameter part passes through a left spline shaft sleeve 2.12, the threaded hole is in threaded fit relation with a Y-direction adjusting positive and negative thread screw rod 1.11, two sides of a left lifting platform 2.2 are provided with counter bores along the Y-axis direction, the screw is installed in the counter bores and is fixedly installed with a left lifting linear guide rail slide block 2.4, the center position of the sleeve structure is provided with a bearing installation hole, the left lifting linear guide rail slide block 2.4 is arranged on a left lifting linear guide rail 2.3 and is fixedly connected with a left lifting platform 2.2, the left lifting screw 2.5 is arranged on a left bracket 2.1 by a bearing, the end with a key groove is fixedly connected with a left lifting driven bevel gear 2.6 by a key, a left spline shaft sleeve 2.12 is arranged at the lower part of the left bracket 2.1 by a bearing, one end at the inner side is fixedly connected with a left lifting driving bevel gear 2.7, the left lifting driven bevel gear 2.6 and the left lifting driving bevel gear 2.7 form gear matching, the rotating motor mounting seat 2.13 is divided into a mounting plate and a sleeve part, the sleeve part is provided with a through hole along the radial direction, the mounting plate is provided with a threaded hole and a through hole which is coaxial with the sleeve part, and the sleeve part is arranged at the outer side of the sleeve structure of the left lifting platform 2.2, the shell of the rotary speed reducer 2.11 is fixedly connected with the shell of the rotary motor 2.10 by the input end of the screw, the output end of the rotary speed reducer is fixedly connected with a rotary motor mounting seat 2.13, the input shaft of the rotary speed reducer is fixedly connected with the output shaft of the rotary motor 2.10 by key connection, the output hole is fixedly connected with the rotary shaft 2.14 by key connection, the rotary shaft 2.14 is fixedly mounted in a sleeve structure of the left lifting platform 2.2 by a bearing, one end of the rotary speed reducer is connected with the rotary speed reducer 2.11 by key connection, the other end of the rotary speed reducer is connected with the left pressing sleeve 2.15, the left pressing sleeve 2.15 is internally provided with a step hole, the small diameter section of the step hole is provided with a key groove, a plurality of U-shaped grooves are uniformly distributed in the radial direction, the small diameter section of the left pressure sensor 2.16 is connected with the rotary shaft 2.14 by key connection, the left, the electric wire is connected with the outer side through a U-shaped groove, one side of the left pressing plate 2.8 is a flat plate, a left pressing plate attached layer 2.9 is fixedly arranged on the outer surface of the flat plate, the other side of the left pressing plate is a cylinder, a plurality of key grooves are uniformly distributed on the side surface of the cylinder, the key grooves are matched with the U-shaped groove of the left pressing sleeve 2.15 through key connection, a left fixing cover 2.17 is arranged on the left side to connect the left pressing plate 2.8 and the left pressing sleeve 2.15 together, the cylindrical circular surface of the left pressing plate 2.8 is in contact with the left pressure sensor 2.16, and the left pressing plate attached layer 2.9 is made of rubber with rough outer; the right lifting pressing mechanism 3 mainly comprises a right bracket 3.1, a right lifting platform 3.2, a right lifting linear guide rail 3.3, a right lifting linear guide rail slider 3.4, a right lifting screw rod 3.5, a right lifting driven bevel gear 3.6, a right lifting driving bevel gear 3.7, a right pressing plate 3.8, a right pressing plate attached layer 3.9, a Y-direction adjusting screw rod 3.10, a Y-direction adjusting clamping plate 3.11, a Y-direction adjusting scale 3.12, a right pressing sleeve 3.13, a Y-direction adjusting fixed handle 3.14, a Y-direction adjusting hand wheel 3.15, a right spline shaft sleeve 3.16, a right mounting fixed cover 3.17 and a right pressure sensor 3.18, wherein both sides of the right bracket 3.1 are provided with counter bores along the Z-axis direction, screws are mounted in the counter bores and fixed on the Y-direction adjusting linear guide rail slider 1.10, the front middle position of the right lifting pressing mechanism is provided with a through groove, one side of the central through groove is provided with a step hole along the Z-axis direction, and the upper step hole is, the small diameter part passes through one end of a cylindrical boss of a right lifting screw rod 3.5, a bearing is arranged at the large diameter part of a step hole at the lower part of the cylindrical boss, the small diameter part passes through one end of the cylindrical boss with a key slot of the right lifting screw rod 3.5, the other side of a central through groove is provided with a small-sized scale translation groove, a row of threaded holes are respectively arranged at the outer sides of the step holes at the two sides of the through groove, the right lifting linear guide rail 3.3 is fixedly installed by using screws, the boss at the lower part of the through groove is provided with a threaded hole and a step hole, the step hole is positioned below the previous step hole, a bearing is arranged at the large diameter part of the step hole, the small diameter part passes through a right spline shaft sleeve 3.16, the threaded holes of the small diameter part form a thread fit relation with a Y-direction adjusting positive and negative thread lead screw 1.11, counter bores are arranged at the two sides of the right lifting platform 3, a radial through threaded hole is arranged at the tail end of the inner side of the sleeve structure, a Y-direction adjusting fixed handle 3.14 is arranged by the threaded hole, one side of the Y-direction adjusting fixed handle is provided with a threaded hole along the Z-axis direction and forms a threaded fit relation with a right lifting screw rod 3.5, the other side of the Y-direction adjusting fixed handle is provided with a scale mounting hole along the Y direction, a right lifting linear guide rail slide block 3.4 is arranged on a right lifting linear guide rail 3.3 and is fixedly connected with a right lifting platform 3.2, the right lifting screw rod 3.5 is arranged on a right bracket 3.1 by a bearing, the end with a key groove is fixedly connected with a right lifting driven bevel gear 3.6 by a key connection, a right spline shaft sleeve 3.16 is arranged at the lower part of the right bracket 3.1 by a bearing, one end of the inner side is fixedly connected with a right lifting driving bevel gear 3.7, the right lifting driven bevel gear 3.6 and the right lifting bevel gear 3.7 form a gear, the middle part is a thread section, the tail end of the thread section close to the front is provided with a clamping groove, the front section is a cylindrical section, the rear section is fixedly installed with a Y-direction adjusting hand wheel 3.15 by key connection, the middle section is in thread transmission fit with a Y-direction threaded hole of a right lifting platform 3.2, the clamping groove is connected with a large hole end of a Y-direction adjusting clamping plate 3.11, the front section is provided with a bearing and is connected with a right pressing sleeve 3.13 by the bearing, the outer surface of the Y-direction adjusting scale 3.12 is provided with scales, one end of the Y-direction adjusting scale is provided with a clamping groove which is installed in a scale installing hole of the right lifting platform 3.2 and passes through a scale translation groove of a right bracket 3.1, the clamping groove is connected with a small hole end of the Y-direction adjusting clamping plate 3.11, the inner side of the right pressing sleeve 3.13 is a plurality of cylindrical sections and is uniformly provided with a plurality of U-shaped grooves along the radial direction, one end of the, the electric wire is connected with the outer side through a U-shaped groove, the other end of the electric wire is provided with a bearing and is connected with a Y-direction adjusting screw rod 3.10 through the bearing, one side of a right pressing plate 3.8 is a flat plate, a right pressing plate attached layer 3.9 is fixedly arranged on the outer surface of the flat plate, the other side of the right pressing plate is a cylinder, a plurality of key grooves are uniformly distributed on the side surface of the cylinder, the right pressing plate is matched with the U-shaped groove of a right pressing sleeve 3.13 through key connection, a right mounting and fixing cover 3.17 is used for connecting the right pressing plate 3.8 and the right pressing sleeve 3.13 together, the cylindrical surface of the right pressing plate 3.8 is in contact with a right pressure sensor 3.18, and the right pressing plate; the X-direction pressing mechanism 4 mainly comprises an X-direction pressing upright post 4.1, an X-direction lifting platform 4.2, an X-direction pressing linear guide rail 4.3, an X-direction pressing linear guide rail slide block 4.4, an X-direction lifting fixed handle 4.5, an X-direction adjusting fixed handle 4.6, an X-direction pressing mounting sleeve 4.7, an X-direction mounting handle 4.8, an X-direction pressure sensor 4.9, an X-direction mounting fixed cover 4.10, an X-direction mounting post 4.11, an X-direction pressing plate 4.12 and an X-direction pressing plate attachment layer 4.13, wherein the lower part of the X-direction pressing upright post 4.1 is provided with a pin shaft hole, the side surface is provided with scales, the inside is provided with a mounting groove, the mounting groove is inserted into an upper boss of the X-direction adjusting seat 1.18, the pin shaft holes of the X-direction adjusting seat 1 and the X-direction pressing upright post 4.1 are connected by a pin shaft, the X-direction lifting platform 4.2 is divided into a sliding frame and a mounting seat, two threaded holes are formed on the sliding frame part, and the X, the mounting surface of the mounting seat part deflects downwards by a certain angle, the middle of the mounting surface is provided with a threaded hole, an X-direction pressing linear guide rail sliding block 4.4 is mounted and fixed by the threaded hole, the front and the back of the mounting seat part are provided with penetrating threaded holes, an X-direction adjusting fixing handle 4.6 is mounted by the threaded hole, an X-direction pressing upright post 4.1 is mounted and arranged on the inner side of a sliding frame of an X-direction lifting platform 4.2, the outer surface of the X-direction pressing upright post 4.1 is locked by an X-direction lifting fixing handle 4.5, the X-direction pressing linear guide rail 4.3 is mounted on the X-direction pressing linear guide rail sliding block 4.4, the X-direction adjusting fixing handle 4.6 is locked to the upper surface of the pressing linear guide rail 4.3, the upper part of the X-direction pressing mounting sleeve 4.7 is provided with a penetrating guide rail mounting groove, the top is axially provided with a unthreaded hole and a threaded hole, the bottom is provided with a mounting hole, U-shaped grooves are uniformly distributed, one side of an X-direction pressure sensor 4.9 is attached to the inner surface of a mounting hole, an electric wire of the X-direction pressure sensor is connected with the outer side through a U-shaped groove, an X-direction compression linear guide rail 4.3 is inserted into a guide rail mounting groove of an X-direction compression mounting sleeve 4.7, an X-direction mounting handle 4.8 is fixed on a threaded hole at the upper part of the X-direction compression mounting sleeve 4.7 through a unthreaded hole at the upper part of the X-direction compression mounting sleeve 4.7 and a mounting hole of the X-direction compression linear guide rail 4.3, the X-direction mounting column 4.11 is structurally divided into three parts, one end of the X-direction mounting column is a large-diameter cylindrical section, a plurality of key grooves are uniformly distributed on the side surface of the cylinder, the key grooves are matched with the U-shaped groove of the X-direction compression mounting sleeve 4.7 through key connection, the middle section is a small-diameter cylindrical section, the other end of the X-direction mounting column 4.11 is a ball joint, the X-direction mounting fixing cover 4.10 is used for connecting the, and an X-direction pressing plate attaching layer 4.13 is fixedly arranged on the outer surface of the flat plate, the other side of the flat plate is a cylinder, is provided with a ball joint and is combined with the ball joint of the X-direction mounting column 4.11, and the X-direction pressing plate attaching layer 4.13 is made of rubber with rough outer surface and grains.

Before the invention is used, firstly, a pin shaft between a front end X-direction adjusting seat 1.18 and an X-direction pressing upright post 4.1 is taken down, two sets of X-direction pressing mechanisms 4 at the front part are taken down, then the invention is integrally placed on a working platform of a machine tool, a base fixing handle 1.6 is rotated to ensure that the base fixing handle 1.6 is locked at the front side, the rear side, the left side and the right side of the working platform of the machine tool, so that the position of the invention relative to the working platform of the machine tool is determined, then, the marking is carried out on the working platform of the machine tool through a marking positioning hole on a base mounting plate 1.1, so that when the invention is used again, the invention is fixed to the position marked before, the repeatability of the processing flow of the same part is improved, and the consistency of the; after the position of the invention is determined, a screw passes through a waist hole on the base mounting plate 1.1, is connected with a T-shaped groove of a machine tool working platform and is pressed in a waist hole shaped sinking groove, thereby improving the attaching degree of the base mounting plate 1.1 and the machine tool working platform and ensuring the rigidity thereof; when the cylinder blank needs to be processed, the chuck fixing seat 1.21 can be detached firstly, the chuck is fixed on the chuck fixing seat 1.21, then the chuck fixing seat 1.21 is installed and fixed in the step-shaped counter bore at the center of the base mounting plate 1.1, when the existing chuck does not conform to the use requirement and needs to be replaced, the chuck fixing seat 1.21 and the existing chuck can be detached, after the chuck is replaced, a new chuck is fixed on the chuck fixing seat 1.21, and then the chuck fixing seat 1.21 is installed and fixed in the step-shaped counter bore at the center of the base mounting plate 1.1.

The working process of the invention is as follows: placing a part blank to be processed on the base mounting plate 1.1, then inserting the X-direction pressing upright post 4.1 into an upper boss of the X-direction adjusting seat 1.18, and connecting the X-direction adjusting seat 1.18 with a pin shaft hole of the X-direction pressing upright post 4.1 by using a pin shaft, thereby completing the quick installation of the front two sets of X-direction pressing mechanisms 4; then, rotating an X-direction lifting fixing handle 4.5, adjusting an X-direction lifting table 4.2 to slide up and down along an X-direction pressing upright post 4.1, adjusting to a proper height, reversely rotating the X-direction lifting fixing handle 4.5 to lock the X-direction pressing upright post 4.1, fixing the relative position of the X-direction lifting table 4.2 and the X-direction pressing upright post 4.1, recording the size according to the side scale of the X-direction pressing upright post 4.1 so as to adopt the same adjustment amount and realize quick adjustment when the same parts are processed, then rotating an X-direction adjusting fixing handle 4.6, adjusting the X-direction pressing linear guide rail 4.3 to slide left and right along an X-direction pressing linear guide rail sliding block 4.4, adjusting to a proper position, reversely rotating the X-direction adjusting fixing handle 4.6 to lock the X-direction pressing linear guide rail 4.3, and fixing the relative positions of the X-direction pressing linear guide rail 4.3 and the X-direction pressing linear guide rail sliding block 4.4; if the length of the part blank to be processed is longer or shorter, the Y-direction adjusting hand wheel 3.15 can be rotated, so that the Y-direction adjusting screw rod 3.10 generates spiral motion relative to the right lifting table 3.2, the right pressing plate 3.8 is driven to move forwards or backwards, the distance between the left pressing plate attached layer 2.9 and the right pressing plate attached layer 3.9 is reduced or increased, the length size of the part blank to be processed is adapted, then the Y-direction adjusting fixing handle 3.14 is rotated to lock the Y-direction adjusting screw rod 3.10, the size is recorded according to the Y-direction adjusting scale 3.12, and the same adjusting amount is adopted and quick adjustment is realized when the same part is processed later; if the Y-direction clamping height is not proper, the lifting motor 1.19 is controlled to rotate forward or reversely for a certain angle, the lifting motor 1.19 drives the left spline shaft sleeve 2.12 and the right spline shaft sleeve 3.16 to rotate for the same angle through the lifting adjusting spline shaft 1.12 via the lifting speed reducer 1.20, and drives the left lifting screw rod 2.5 and the right lifting screw rod 3.5 to rotate for the same angle through the gear transmission between the left lifting driven bevel gear 2.6 and the left lifting driving bevel gear 2.7 and between the right lifting driven bevel gear 3.6 and the right lifting driving bevel gear 3.7, so that the left lifting platform 2.2 and the right lifting platform 3.2 drive the left pressing plate 2.8 and the right pressing plate 3.8 to ascend or descend by the same distance, when the height of the Y-direction clamping is properly adjusted, recording the rotating angle and the direction output by the lifting motor 1.19 so as to process the same parts later by the same adjusting amount and realize quick adjustment; after the adjustment is finished, the part blank to be processed is prepared to be rapidly tightened, firstly, a Y-direction adjusting motor 1.7 is controlled to rotate in a forward direction, the Y-direction adjusting motor 1.7 drives a Y-direction adjusting positive and negative screw rod to rotate through a Y-direction adjusting speed reducer 1.8, so as to drive a left lifting pressing mechanism 2 and a right lifting pressing mechanism 3 to gradually approach, when the part to be processed first contacts a left pressing plate attached layer 2.9 or a right pressing plate attached layer 3.9, a left pressure sensor 2.16 or a right pressure sensor 3.18 outputs an electric signal to prompt an output pressure value, the part blank to be processed moves to one side, at the moment, the Y-direction adjusting motor 1.7 is controlled to continue to rotate in the forward direction, when the left pressure sensor 2.16 and the right pressure sensor 3.18 both output pressure values and the pressure values are similar, and when the part blank to be processed does not move any more, the Y-direction adjusting motor 1, a left side pressing plate attachment layer 2.9 and a right side pressing plate attachment layer 3.9 generate a certain gap with a part blank to be processed, then a Y-direction adjusting motor 1.7 is controlled to stop rotating, then an X-direction adjusting motor 1.13 is controlled to rotate in a positive direction, the X-direction adjusting motor 1.13 drives an X-direction adjusting positive and negative tooth lead screw 1.17 to rotate through an X-direction adjusting speed reducer 1.14, so that a front set of X-direction pressing mechanisms and a rear set of X-direction pressing mechanisms of the same X-direction adjusting linear guide rail 1.15 are driven to gradually approach, when the part to be processed first contacts the front X-direction pressing plate attachment layer 4.13 or the rear X-direction pressing plate attachment layer, a front X-direction pressure sensor 4.9 or the rear X-direction pressure sensor outputs an electric signal to prompt to output a pressure value, the part blank to be processed moves to one side, at the moment, the X-direction adjusting motor 1.13 is controlled to continuously rotate in the positive direction, controlling an X-direction adjusting motor 1.13 to stop rotating, wherein the X-direction adjusting motor deflects downwards by a certain angle towards the mounting surface of a lifting table 4.2, so that a part blank to be processed is fastened in front and back to generate horizontal clamping force, meanwhile, the part blank to be processed generates downward pressure so as to increase the attaching degree of the part blank to be processed to a base mounting plate 1.1, then controlling a Y-direction adjusting motor 1.7 to rotate in the forward direction, and when a left-side pressure sensor 2.16 and a right-side pressure sensor 3.18 both output pressure values and the pressure values are close, and the part blank to be processed does not move any more, controlling a Y-direction adjusting motor 1.7 to stop rotating, and then starting a machine tool to process the upper surface of the part blank; after one surface of a part is processed by a standby machine, controlling an X-direction adjusting motor 1.13 to rotate reversely for a set angle, so that a certain gap is generated between the front and back X-direction pressing plate attached layers 4.13 and a part blank to be processed, then controlling the X-direction adjusting motor 1.13 to stop rotating, then controlling a lifting motor 1.19 to rotate forwardly, driving a left spline shaft sleeve 2.12 and a right spline shaft sleeve 3.16 to rotate for the same angle through a lifting adjusting spline shaft 1.12 by a lifting speed reducer 1.19, driving a left lifting driven bevel gear 2.6 and a left lifting driving bevel gear 2.7, driving a right lifting driven bevel gear 3.6 and a right lifting driving bevel gear 3.7 through gear transmission between the left lifting driven bevel gear 2.6 and the left lifting driving bevel gear 2.7, driving a left lifting screw 2.5 and a right lifting screw 3.5 to rotate for the same angle, driving a left pressing plate 2.8 and a right pressing plate 3.8 to ascend for the same distance by the left lifting platform 2.2 and the right lifting platform 3.2, and, so that the same adjustment amount is adopted for the subsequent processing of the same parts and the rapid adjustment is realized, then the rotating motor 2.10 is controlled to rotate forward for setting the angle, the rotating motor 2.10 drives the rotating shaft 2.14 to rotate through the rotating speed reducer 2.11, further drives the left pressing sleeve 2.15, the left pressure sensor 2.16, the left mounting fixing cover 2.17, the left pressing plate 2.8, the left pressing plate attaching layer 2.9, the right pressing plate attaching layer 3.9, the right pressing plate 3.8, the right mounting fixing cover 3.17, the right pressure sensor 3.18, the right pressing sleeve 3.13 and the part blank to rotate together for setting the angle, then the lifting motor 1.19 is controlled to rotate reversely, the lifting motor 1.19 drives the left spline shaft sleeve 2.12 and the right spline shaft sleeve 3.16 to rotate for the same angle through the lifting adjusting spline shaft 1.12 through the lifting adjusting spline shaft 1.20, and then passes through the left lifting driven bevel gear 2.6 and the left lifting driven bevel gear 2.7, the right lifting driven bevel gear 3.6 and the right lifting bevel gear 3.7, the left lifting screw 2.5 and the right lifting screw 3.5 are driven to rotate by the same angle, so that the left lifting table 2.2 and the right lifting table 3.2 drive the left pressing plate 2.8 and the right pressing plate 3.8 to descend by the same distance, after a part blank is contacted with the base mounting plate 1.1, the lifting motor 1.19 is controlled to stop rotating, and the rotating angle and the direction output by the lifting motor 1.19 are recorded, so that the same adjustment amount is adopted for processing the same parts later and quick adjustment is realized; then controlling an X-direction adjusting motor 1.13 to rotate positively, driving a front set of X-direction pressing mechanisms and a rear set of X-direction pressing mechanisms of the same X-direction adjusting linear guide rail 1.15 to gradually approach by the X-direction adjusting motor 1.13 through an X-direction adjusting speed reducer 1.14, when a part to be processed first contacts a front X-direction pressing plate attached layer 4.13 or a rear X-direction pressing plate attached layer 4.13, outputting an electric signal to prompt the output of a pressure value by a front X-direction pressure sensor 4.9 or a rear X-direction pressure sensor, controlling the X-direction adjusting motor 1.13 to continuously rotate positively, outputting a pressure value by the front X-direction pressing plate attached layer 4.13 or the rear X-direction pressing plate attached layer 4.13, controlling the X-direction adjusting motor 1.13 to stop rotating when the part blank to be processed does not move any more, and then starting a machine tool to process the other surface of the part; by analogy, a plurality of surfaces of the part blank can be processed; when the part blank needs to be taken down after one or more surfaces are machined, the main shaft of the machine tool stops rotating, then the X-direction adjusting motor 1.13 is controlled to rotate reversely for a set angle, so that the front and back X-direction pressing plate attached layers 4.13 generate a certain gap with the part blank to be machined, then the X-direction adjusting motor 1.13 is controlled to stop rotating, then the Y-direction adjusting motor 1.7 is controlled to rotate reversely for a set angle, so that the left-side pressing plate attached layer 2.9 and the right-side pressing plate attached layer 3.9 generate a certain gap with the part blank to be machined, then the Y-direction adjusting motor 1.7 is controlled to stop rotating, so that the clamping state of the part blank can be released, then the pin shaft between the front-end X-direction adjusting seat 1.18 and the X-direction pressing upright post 4.1 is taken down, the two sets of front X-direction pressing mechanisms 4 are taken down, then the part blank is taken down from the base mounting plate 1.1.

Claims

1. The working method of the aircraft titanium alloy part machining tool table is characterized by comprising the following steps of:

1-1: the workbench comprises four parts, namely a base adjusting and fixing mechanism (1), a left lifting and pressing mechanism (2), a right lifting and pressing mechanism (3) and an X-direction pressing mechanism (4), wherein the base adjusting and fixing mechanism (1) is fixedly arranged on a working platform of a machine tool by screws, the left lifting and pressing mechanism (2) and the right lifting and pressing mechanism (3) are fixedly arranged on the base adjusting and fixing mechanism (1) by screws and form a threaded transmission fit connection relation and a spline transmission and sliding fit connection relation with the base adjusting and fixing mechanism (1), and the X-direction pressing mechanism (4) is divided into four parts and is fixedly arranged on the base adjusting and fixing mechanism (1) by screws; the X-direction pressing mechanism (4) is divided into four parts and is fixedly arranged on the base adjusting and fixing mechanism (1) by screws; the base adjusting and fixing mechanism (1) is composed of a base mounting plate (1.1), a front fixed side plate (1.2), a rear fixed side plate (1.3), a left fixed side plate (1.4), a right fixed side plate (1.5), a base fixing handle (1.6), a Y-direction adjusting motor (1.7), a Y-direction adjusting speed reducer (1.8), a Y-direction adjusting linear guide rail (1.9), a Y-direction adjusting linear guide rail slider (1.10), a Y-direction adjusting positive and negative tooth lead screw (1.11), a lifting adjusting spline shaft (1.12), an X-direction adjusting motor (1.13), an X-direction adjusting speed reducer (1.14), an X-direction adjusting linear guide rail (1.15), an X-direction adjusting linear guide rail slider (1.16), an X-direction adjusting positive and negative tooth lead screw (1.17), an X-direction adjusting seat (1.18), a lifting motor (1.19), a lifting speed reducer (1.20) and a fixed seat (1.21), wherein a plurality of mark positioning holes are symmetrically formed in the upper surface of the base mounting plate (1, Waist hole and waist hole shaped sink groove, the geometric center position is opened with step shaped sink hole, the front and back sides along the Y axis direction are opened with guide rail mounting groove, the two sides along the X axis direction center sink hole are opened with guide rail mounting groove, the two sides of the X direction guide rail mounting groove are opened with two rectangular grooves, the front and back four sides are opened with a row of threaded holes respectively, the left and right sides along the Y axis direction are opened with a lead screw mounting through hole and a spline shaft mounting through hole, the inner side of the front fixed side plate (1.2) is opened with two bearing mounting holes, the middle and lower part is opened with a row of sink holes and a row of threaded holes, mounting screws are arranged in the sink holes and are mounted and fixed on the base mounting plate (1.1), the base fixed handle (1.6) is mounted in the threaded holes, the threaded end of the base fixed handle (1.6) faces the base mounting plate (1.1), the bearing is mounted in the inner side mounting hole, the upper part of the backward fixed side plate (1.3) is provided with a step hole, threaded holes are circumferentially arranged by taking the step hole as a center, the middle lower part of the backward fixed side plate is provided with a row of counter bores and a row of threaded holes, screws are arranged in the counter bores and are fixedly installed on a base mounting plate (1.1), a base fixed handle (1.6) is arranged in the threaded holes, the threaded end of the base fixed handle (1.6) faces the base mounting plate (1.1), the large-diameter part of the step hole is provided with a bearing, the small-diameter part of the step hole penetrates through one end of a cylindrical boss with a key groove of an X-direction adjusting positive and negative lead screw (1.17), the upper part of the left fixed side plate (1.4) is provided with the step hole, the threaded holes are circumferentially arranged by taking the step hole as the center, the middle lower part of the backward fixed side plate is provided with a row of counter bores and a row of threaded holes, the screws are arranged in the counter bores and are fixedly installed on the base mounting plate, a large-diameter part of the stepped hole is provided with a bearing, a small-diameter part of the small-diameter part passes through a Y-direction adjusting speed reducer, a small-diameter, the input shaft of the Y-direction adjusting speed reducer is fixedly connected with the output shaft of a Y-direction adjusting motor (1.7) through a key, the output shaft of the Y-direction adjusting speed reducer (1.8) is fixedly connected with a Y-direction adjusting positive and negative tooth lead screw (1.11) through a key, the Y-direction adjusting linear guide rail (1.9) is fixedly arranged in a guide rail installation groove of a base installation plate (1.1) along the Y-axis direction through a screw, a Y-direction adjusting linear guide rail sliding block (1.10) is arranged on the guide rail installation groove, the shell of the X-direction adjusting speed reducer (1.14) is fixedly connected with the shell of an X-direction adjusting motor (1.13) through a screw, the shell of the X-direction adjusting speed reducer (1.14) is fixedly connected with a rear fixed side plate (1.3), the input shaft of the X-direction adjusting speed reducer is fixedly connected with the output shaft of an X-direction adjusting motor (1.13) through a key, the X-direction adjusting speed reducer (1.14) is fixedly connected with an X-direction adjusting positive and negative tooth lead screw (1.17) through The X-direction adjusting linear guide rail sliding block (1.16) is arranged on the groove, a counter bore is formed in the upper surface of the X-direction adjusting seat (1.18), a threaded hole is formed in one side of the X-direction adjusting seat, a pin shaft hole is formed in the side face of an upper boss, a screw is arranged in the counter bore and fixedly arranged on the X-direction adjusting linear guide rail sliding block (1.16), the threaded hole and an X-direction adjusting positive and negative screw lead screw (1.17) form a thread fit relation, a shell of the lifting speed reducer (1.20) is fixedly connected with a shell of a lifting motor (1.19) through the screw, the shell of the lifting speed reducer (1.20) is fixedly connected with a left-direction fixed side plate (1.4), an input shaft of the lifting speed reducer is fixedly connected with an output shaft of the lifting motor (1.19) through a key, an output shaft of the lifting speed reducer (1.20) is fixedly connected with a lifting adjusting spline shaft (1.12) through the key, screws are arranged in the counter bores, the screws are fixedly arranged in the step-shaped counter bores in the center of the base mounting plate (1.1), and corresponding chucks can be fixed by utilizing the threaded holes according to actual conditions; the left lifting and pressing mechanism (2) consists of a left bracket (2.1), a left lifting platform (2.2), a left lifting linear guide rail (2.3), a left lifting linear guide rail slide block (2.4), a left lifting lead screw (2.5), a left lifting driven bevel gear (2.6), a left lifting driving bevel gear (2.7), a left pressing plate (2.8), a left pressing plate attaching layer (2.9), a rotating motor (2.10), a rotating speed reducer (2.11), a left spline shaft sleeve (2.12), a rotating motor mounting seat (2.13), a rotating shaft (2.14), a left pressing sleeve (2.15), a left pressure sensor (2.16) and a left mounting and fixing cover (2.17), wherein both sides of the left bracket (2.1) are provided with counter bores along the Z-axis direction, screws are mounted and fixed on the Y-direction adjusting linear guide rail slide block (1.10) in the counter bores, the middle position of the front is provided with a through groove, and one side of the through groove is provided with a step hole along the Z-axis direction, a bearing is arranged at the large-diameter part of a step hole at the upper part of the left lifting screw rod, a small-diameter part passes through one end of a cylindrical boss of a left lifting screw rod (2.5), a bearing is arranged at the large-diameter part of the step hole at the lower part of the left lifting screw rod, a small-diameter part passes through one end of the cylindrical boss with a key slot of the left lifting screw rod (2.5), a row of threaded holes are respectively arranged at the outer sides of the step holes at the two sides of a through groove, the left lifting linear guide rail (2.3) is fixedly installed by screws, a threaded hole and a step hole are arranged at the lower part of the through groove, the step hole is positioned below the previous step hole, a bearing is arranged at the large-diameter part of the step hole, the small-diameter part passes through a left spline shaft sleeve (2.12), the threaded hole and a Y-direction adjusting positive and negative thread lead screw rod (1.11) form a thread matching relationship, the center of the sleeve structure is provided with a sleeve structure with a bearing mounting hole, the tail end of the sleeve structure is provided with a radial through threaded hole, one side of the sleeve structure is provided with a threaded hole along the Z-axis direction and forms a thread fit relation with a left lifting screw rod (2.5), a left lifting linear guide rail sliding block (2.4) is arranged on a left lifting linear guide rail (2.3) and is fixedly connected with a left lifting platform (2.2), the left lifting screw rod (2.5) is arranged on a left bracket (2.1) by a bearing, the end with a key groove is fixedly connected with a left lifting driven bevel gear (2.6) by a key, a left spline shaft sleeve (2.12) is arranged at the lower part of the left bracket (2.1) by the bearing, one end at the inner side is fixedly connected with the left lifting driving bevel gear (2.7) and the left lifting driven bevel gear (2.6) and the left lifting driving bevel gear (2.7), the rotary motor mounting seat (2.13) is divided into two parts of a mounting plate and a sleeve, the sleeve part is radially provided with a through hole, the mounting plate is provided with a threaded hole and a through hole which is coaxial with the sleeve part, the sleeve part is arranged on the outer side of the sleeve structure of the left lifting platform (2.2) and is fixedly arranged by screws through the through hole and the threaded hole, the shell of the rotary speed reducer (2.11) is fixedly connected with the shell of the rotary motor (2.10) by screws, the shell of the rotary speed reducer (2.11) is fixedly connected with the rotary motor mounting seat (2.13), the input shaft of the rotary speed reducer is fixedly connected with the output shaft of the rotary motor (2.10) by key connection, the output shaft of the rotary speed reducer (2.11) is fixedly connected with the rotary shaft (2.14) by keys, the rotary shaft (2.14) is fixedly arranged and fixed in the sleeve structure of the left lifting platform (2.2) by bearings, and one end of, the other end is connected with a left pressing sleeve (2.15), a stepped hole is arranged in the left pressing sleeve (2.15), a small diameter section of the left pressing sleeve is provided with a key slot and is uniformly provided with a plurality of U-shaped slots along the radial direction, the small diameter section of the left pressing sleeve is connected with a rotating shaft (2.14) by a key, a left pressure sensor (2.16) is arranged on the inner side of the left pressing sleeve, one side of the left pressure sensor (2.16) is attached to the stepped surface, the electric wire of the left pressing sleeve is connected with the outer side of the stepped hole by the U-shaped slots, one side of the left pressing plate (2.8) is a flat plate, a left pressing plate attaching layer (2.9) is fixedly arranged on the outer surface of the flat plate, the other side of the left pressing plate is a cylinder, a plurality of key slots are uniformly distributed on the side of the cylinder, the key slots are matched with the U-shaped slots of the left pressing sleeve (2.15), a left pressing plate (2.8) is connected with the left pressing sleeve (2.15, the left pressing plate attached layer (2.9) is made of rubber with rough outer surface and grains; the right lifting and pressing mechanism (3) consists of a right bracket (3.1), a right lifting platform (3.2), a right lifting linear guide rail (3.3), a right lifting linear guide rail slide block (3.4), a right lifting screw (3.5), a right lifting driven bevel gear (3.6), a right lifting driving bevel gear (3.7), a right pressing plate (3.8), a right pressing plate attaching layer (3.9), a Y-direction adjusting screw (3.10), a Y-direction adjusting clamping plate (3.11), a Y-direction adjusting scale (3.12), a right pressing sleeve (3.13), a Y-direction adjusting fixed handle (3.14), a Y-direction adjusting hand wheel (3.15), a right spline shaft sleeve (3.16), a right mounting and fixing cover (3.17) and a right pressure sensor (3.18), wherein two sides of the right bracket (3.1) are provided with counter bores along the Z-axis direction, screws are mounted in the counter bores and are fixedly mounted on the Y-direction adjusting linear guide rail slide block (1.10), the middle position of the front face of the lifting linear guide rail is provided with a through groove, one side of the central through groove is provided with a step hole along the Z-axis direction, the large-diameter part of the step hole at the upper part is provided with a bearing, the small-diameter part of the central through groove passes through one end of a cylindrical boss of a right lifting screw rod (3.5), the large-diameter part of the step hole at the lower part is provided with a bearing, the small-diameter part of the small-diameter part passes through one end of the cylindrical boss of the right lifting screw rod (3.5) with a key slot, the other side of the central through groove is provided with a small-sized scale translation groove, two sides of the through groove are respectively provided with a row of threaded holes positioned outside the step hole, the threaded holes are fixedly arranged on a right lifting linear guide rail (3.3) by utilizing screws, the lower boss of the lower part is provided with a threaded hole and a step hole, wherein the step hole is positioned below the previous step hole, two sides of the right lifting platform (3.2) are provided with counter bores along the Y-axis direction, screws are arranged in the counter bores, a right lifting linear guide rail sliding block (3.4) is fixedly arranged, the center position of the sleeve structure is provided with a sleeve structure provided with a threaded hole, the tail end of the inner side of the sleeve structure is provided with a radial through threaded hole, a Y-direction adjusting fixed handle (3.14) is arranged by utilizing the threaded hole, one side of the right lifting linear guide rail sliding block (3.4) is provided with a threaded hole along the Z-axis direction and forms a threaded fit with a right lifting screw rod (3.5), the other side of the sleeve structure is provided with a scale mounting hole along the Y-direction, the right lifting linear guide rail sliding block (3.4) is arranged on the right lifting linear guide rail (3.3) and is fixedly connected with the right lifting platform (3.2), the right lifting screw rod (3.5) is arranged on a right bracket (3.1), the right spline shaft sleeve (3.16) is arranged at the lower part of the right bracket (3.1) by utilizing a bearing, one end at the inner side of the right spline shaft sleeve is fixedly connected with a right lifting driving bevel gear (3.7), and the right lifting driven bevel gear (3.6) and the right lifting driving bevel gear (3.7) form gear fit, the rear section of the Y-direction adjusting screw rod (3.10) is a cylindrical section with a key slot, the middle part is a threaded section, the tail end close to the front part of the threaded section is provided with a clamping groove, the front section is a cylindrical section, the rear section is fixedly arranged with a Y-direction adjusting hand wheel (3.15) by utilizing key connection, the section and a Y-direction threaded hole of the right lifting platform (3.2) form thread transmission fit, the clamping groove is connected with a large hole end for installing a Y-direction adjusting clamping plate (3.11), the front section is provided with the bearing and is connected with a right pressing sleeve (3.13) by utilizing the, the right-side pressure plate is arranged in a scale mounting hole of a right-side lifting table (3.2), penetrates through a scale translation groove of a right-side support (3.1), a clamping groove of the right-side pressure plate is connected with and mounted at a small hole end of a Y-direction adjusting clamping plate (3.11), the inner side of a right-side pressure sleeve (3.13) is provided with a plurality of cylindrical sections, a plurality of U-shaped grooves are uniformly distributed along the radial direction, one ends of the U-shaped grooves are provided with U-shaped grooves for mounting a right-side pressure sensor (3.18) in the inner side of the U-shaped grooves, one side of the right-side pressure sensor (3.18) is attached to a step surface, electric wires of the right-side pressure sensor are connected with the outer side through the U-shaped grooves, the other ends of the right-side pressure sleeve are provided with bearings, the Y-direction adjusting screw rod (3.10) is connected through the bearings, one side of the right-side pressure plate (3.8) is a flat plate, a right-side pressure plate attaching layer (3.9) is mounted and fixed on the outer surface of the flat plate The cylindrical round surface of the right pressing plate (3.8) is made to contact with the right pressure sensor (3.18), and the right pressing plate attachment layer (3.9) is made of rubber with rough outer surface and grains; the X-direction pressing mechanism (4) consists of an X-direction pressing upright post (4.1), an X-direction lifting platform (4.2), an X-direction pressing linear guide rail (4.3), an X-direction pressing linear guide rail slide block (4.4), an X-direction lifting fixed handle (4.5), an X-direction adjusting fixed handle (4.6), an X-direction pressing installation sleeve (4.7), an X-direction installation handle (4.8), an X-direction pressure sensor (4.9), an X-direction installation fixed cover (4.10), an X-direction installation post (4.11), an X-direction pressing plate (4.12) and an X-direction pressing plate attachment layer (4.13), wherein a pin shaft hole is formed in the lower part of the X-direction pressing upright post (4.1), scales are arranged on the side surface, an installation groove is formed in the inner part, the installation groove is inserted into an upper boss of the X-direction adjusting seat (1.18), the X-direction adjusting seat (1.18) and an upper boss of the X-direction pressing upright post (4.1) are connected by a pin shaft, and the X-direction lifting pin shaft hole of the X, the sliding frame part is provided with two through threaded holes, an X-direction lifting fixing handle (4.5) is installed by utilizing the threaded holes, the installation surface of the installation seat part deflects downwards for a certain angle, the middle of the installation surface is provided with the threaded hole, an X-direction pressing linear guide rail sliding block (4.4) is installed and fixed by utilizing the threaded hole, the front and the back of the installation seat part are provided with the through threaded holes, an X-direction adjusting fixing handle (4.6) is installed by utilizing the threaded hole, an X-direction pressing upright post (4.1) is installed and arranged on the inner side of the sliding frame of an X-direction lifting platform (4.2), the outer surface of the X-direction pressing upright post (4.1) is locked by utilizing the X-direction lifting fixing handle (4.5), the X-direction pressing linear guide rail (4.3) is installed on the X-direction pressing linear guide rail sliding block (4.4), the X-direction adjusting fixing handle (4.6) is locked on the upper surface of the X-direction pressing linear guide rail (4.3), and the, the top part is provided with a unthreaded hole and a threaded hole along the axial direction, the bottom part is provided with a mounting hole, a plurality of U-shaped grooves are uniformly distributed along the radial direction, one end of each U-shaped groove is provided with an X-direction pressure sensor (4.9), one side of the X-direction pressure sensor (4.9) is attached to the inner surface of the mounting hole, an electric wire of the X-direction pressure sensor is connected with the outer side of the mounting hole through the U-shaped groove, an X-direction compression linear guide rail (4.3) is inserted into a guide rail mounting groove of an X-direction compression mounting sleeve (4.7), an X-direction mounting handle (4.8) is fixed at the threaded hole at the upper part of the X-direction compression mounting sleeve (4.7) through the unthreaded hole at the upper part of the X-direction compression mounting sleeve (4.7) and the mounting hole of the X-direction compression linear guide rail (4.3), the X-direction mounting column (4.11) is structurally divided into three parts, a large-diameter cylindrical section is uniformly distributed with a plurality of, the other end is a ball joint, an X-direction mounting column (4.11) is connected with an X-direction pressing mounting sleeve (4.7) by utilizing an X-direction mounting fixing cover (4.10), the circular surface of a large-diameter cylinder of the X-direction mounting column (4.11) is in contact with an X-direction pressure sensor (4.9), one side of an X-direction pressing plate (4.12) is a flat plate, an X-direction pressing plate attaching layer (4.13) is mounted and fixed on the outer surface of the flat plate, the other side of the X-direction pressing plate attaching layer is a cylinder, is provided with a ball joint and is combined with the ball joint of the X-direction mounting column (4.11), and the X-direction pressing plate attaching layer (4.13) is made of rubber with rough outer surface and grains;

1-2: placing a part blank to be processed on a base mounting plate (1.1), and then connecting an X-direction adjusting seat (1.18) and a pin shaft hole of an X-direction pressing upright post (4.1) by using a pin shaft, thereby completing the quick installation of two sets of X-direction pressing mechanisms (4) at the front part;

1-3: rotating an X-direction lifting fixed handle (4.5), adjusting an X-direction lifting table (4.2) to a proper height, reversely rotating the X-direction lifting fixed handle (4.5) to lock an X-direction pressing upright post (4.1), recording the size according to the side scale of the X-direction pressing upright post (4.1), then rotating an X-direction adjusting fixed handle (4.6), adjusting an X-direction pressing linear guide rail (4.3) to a proper position, and reversely rotating the X-direction adjusting fixed handle (4.6) to lock an X-direction pressing linear guide rail (4.3);

if the length of the part blank to be processed is longer or shorter, a Y-direction adjusting hand wheel (3.15) can be rotated, the distance between the left pressing plate attached layer (2.9) and the right pressing plate attached layer (3.9) is adjusted, a Y-direction adjusting fixing handle (3.14) is rotated after the distance is proper to lock a Y-direction adjusting lead screw (3.10), and the size is recorded according to a Y-direction adjusting scale (3.12);

if the Y-direction clamping height is not proper, the lifting motor (1.19) is controlled to adjust the left pressing plate (2.8) and the right pressing plate (3.8) to ascend or descend for the same distance, and when the Y-direction clamping height is properly adjusted, the rotating angle and the direction output by the lifting motor (1.19) are recorded;

1-4: after adjustment is finished, preparing to start rapid clamping of a part blank to be processed, firstly controlling a Y-direction adjusting motor (1.7) to rotate forward to drive a left-side lifting pressing mechanism (2) and a right-side lifting pressing mechanism (3) to gradually approach, when a left-side pressure sensor (2.16) and a right-side pressure sensor (3.18) output pressure values which are close to each other, and when the part blank to be processed does not move any more, controlling the Y-direction adjusting motor (1.7) to rotate reversely for a set angle to enable a left-side pressing plate attached layer (2.9) and a right-side pressing plate attached layer (3.9) to generate a certain gap with the part blank to be processed, and then controlling the Y-direction adjusting motor (1.7) to stop rotating;

then controlling an X-direction adjusting motor (1.13) to rotate positively to drive a front set of X-direction pressing mechanism and a rear set of X-direction pressing mechanism of the same X-direction adjusting linear guide rail (1.15) to approach gradually, outputting pressure values when the front X-direction pressing plate attached layer (4.13) or the rear X-direction pressing plate attached layer (4.13) is close to each other, and controlling the X-direction adjusting motor (1.13) to stop rotating when a part blank to be processed does not move any more;

then, controlling a Y-direction adjusting motor (1.7) to rotate forwardly, and when the left pressure sensor (2.16) and the right pressure sensor (3.18) output pressure values which are similar to each other and the part blank to be processed does not move any more, controlling the Y-direction adjusting motor (1.7) to stop rotating, and then starting a machine tool to process the upper surface of the part blank;

1-5: after one surface of a part is machined by a standby machine, controlling an X-direction adjusting motor (1.13) to rotate reversely for a set angle, enabling the front and back X-direction pressing plate attaching layers (4.13) and a part blank to be machined to generate a certain gap, and then controlling the X-direction adjusting motor (1.13) to stop rotating;

then the lifting motor (1.19) is controlled to rotate positively to drive the left pressing plate (2.8) and the right pressing plate (3.8) to rise for the same distance, and the rotating angle and the direction output by the lifting motor (1.19) are recorded;

then controlling a rotating motor (2.10) to rotate forward for setting an angle, and driving a left pressing sleeve (2.15), a left pressure sensor (2.16), a left mounting and fixing cover (2.17), a left pressing plate (2.8), a left pressing plate attached layer (2.9), a right pressing plate attached layer (3.9), a right pressing plate (3.8), a right mounting and fixing cover (3.17), a right pressure sensor (3.18), a right pressing sleeve (3.13) and a part blank to rotate together for setting an angle;

then controlling a lifting motor (1.19) to rotate reversely to drive a left pressing plate (2.8) and a right pressing plate (3.8) to descend for the same distance, controlling the lifting motor (1.19) to stop rotating after the part blank is contacted with the base mounting plate (1.1), and recording the rotating angle and direction output by the lifting motor (1.19);

then controlling an X-direction adjusting motor (1.13) to rotate in the positive direction to drive a front set of X-direction pressing mechanisms and a rear set of X-direction pressing mechanisms of the same X-direction adjusting linear guide rail (1.15) to gradually approach, outputting pressure values when an X-direction pressing plate attached layer (4.13) on the front surface or the rear surface is close to the pressure values, controlling the X-direction adjusting motor (1.13) to stop rotating when a part blank to be processed does not move any more, and then starting a machine tool to process the other surface of the part blank;

by analogy, a plurality of surfaces of the part blank can be processed;

1-6: when the part blank needs to be taken down after one or more surfaces are machined, the main shaft of the machine tool stops rotating, then the X-direction adjusting motor (1.13) is controlled to rotate reversely for a set angle, so that the front and back X-direction pressing plate attaching layers (4.13) and the part blank to be machined generate a certain gap, and then the X-direction adjusting motor (1.13) is controlled to stop rotating;

1-7: then controlling a Y-direction adjusting motor (1.7) to rotate reversely for a set angle, so that a left pressing plate attached layer (2.9) and a right pressing plate attached layer (3.9) generate a certain gap with a part blank to be processed, and then controlling the Y-direction adjusting motor (1.7) to stop rotating, thereby releasing the clamping state of the part blank;

1-8: and then, taking down a pin shaft between the X-direction adjusting seat (1.18) at the front end and the X-direction pressing upright post (4.1), taking down two sets of X-direction pressing mechanisms (4) at the front part, taking down the part blank from the base mounting plate (1.1), and then continuously processing other parts.