CN117644403B - Numerical control machine tool workpiece machining platform and machining method - Google Patents

Abstract

The invention discloses a workpiece processing platform and a processing method of a numerical control machine tool, wherein the workpiece processing platform comprises an upper machine table for clamping and processing a workpiece, a lower machine table which is arranged below the upper machine table and can enable the upper machine table to transversely move, the upper machine table comprises a workbench, a rotating shaft seat coaxially arranged at the central position above the workbench, a rotating table arranged below the workbench, a rotating table driving mechanism which is arranged at one side of the rotating table and drives a rotating shaft of the rotating table to rotate so as to drive the workbench to rotate, an outer ring support arm which is arranged on the rotating shaft seat and can rotate around the central axis of the shaft seat in the rotating shaft seat, a rotary processing station which is arranged above the workbench and fixedly connected with the outer ring support arm, and a lifting processing station which is arranged on the rotary processing station, wherein the lifting processing station is provided with a workpiece positioning mechanism, and the workpiece processing platform of the numerical control machine tool can adjust the processing station and reduce the processing station according to requirements so as to adapt to different procedures and workpieces.

Description

Numerical control machine tool workpiece machining platform and machining method

Technical Field

The invention relates to the field of machine tool equipment, in particular to a numerical control machine tool workpiece machining platform and a machining method.

Background

The workpiece processing platform of the numerical control machine tool is a platform or a workbench for processing workpieces on the numerical control machine tool, and the numerical control machine tool is a machine tool for completing workpiece processing through computer control, and has higher precision, efficiency and flexibility compared with the traditional manual or semi-automatic machine tool.

The workpiece processing platform of the numerical control machine tool generally comprises a workbench, a clamp and an auxiliary system, wherein the workbench is used for fixing and supporting a workpiece to be processed, the workbench can move, rotate or incline according to the requirement, the clamp is used for fixing the position of the workpiece on the workbench so as to ensure the stability and the precision of the workpiece in the processing process, and the auxiliary system comprises a cutting fluid supply system, a cooling system and the like and is used for providing necessary technological conditions and protecting tools.

The numerical control machine tool workpiece processing platform has the advantages that high-precision, high-efficiency and high-repeatability workpiece processing can be realized, an operator can accurately control the workpiece processing process by writing a numerical control program, influence of human factors on processing quality is reduced, but the traditional numerical control machine tool workpiece processing platform is shared for a plurality of standardized parts, but cannot be used for different parts, especially nonstandard parts, different part processing needs to be carried out by adopting different processing platforms or replacing different clamps, equipment investment is increased, production efficiency is reduced, the traditional common processing platform can only sequentially process one part, and then the next part can be clamped and processed, so that shutdown and operation times are increased, and production efficiency is reduced.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a numerical control machine tool workpiece processing platform and a processing method for simultaneously processing a plurality of different parts, in particular nonstandard parts.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a digit control machine tool work piece processing platform, includes the last board that is used for work piece clamping processing, and set up in last board below, can make last board lateral shifting's lower board, go up the board including the workstation, and coaxial mounting in the pivot seat of workstation top central point put, and install the revolving stage in the workstation below, and set up in revolving stage one side and drive the pivot rotation of revolving stage in order to drive the rotatory revolving stage actuating mechanism of workstation, and set up on the pivot seat, can revolute axle seat central axis pivoted outer lane support arm in the pivot seat, and set up in the workstation top, with outer lane support arm fixed connection's rotation processing station, and set up the lift processing station on the rotation processing station, the lift processing station is including installing the lift seat on the rotation processing station, and install the lift cylinder in the lift seat, and drive the lift platform that goes up and down via the lift cylinder, the fixed work piece positioning mechanism that is used for fixing, spacing to work piece that is provided with on the lift platform, work piece positioning mechanism includes work piece place abutment and work piece fastener.

Further, the lower machine station comprises a platform base, transverse tracks arranged on the platform base, transverse moving seats arranged on the transverse tracks, an upper machine station moving motor arranged in the middle of one side of the platform base, and a screw rod which is arranged in the middle of the upper side of the platform base and driven to rotate by the upper machine station moving motor, wherein the screw rod is in threaded fit with the turntable, the transverse tracks are arranged in two and are respectively arranged on two sides of the length direction of the platform base, the transverse moving seats are provided with four transverse moving seats, the transverse moving seats are arranged on the two transverse tracks, and the turntable is arranged on the transverse tracks through the transverse moving seats.

Further, be equipped with outer lane support arm mounting groove on the pivot seat, be equipped with the annular rail in the outer lane support arm mounting groove, be equipped with the track access that can hold outer lane support arm business turn over on the annular rail, the outer lane support arm card is gone into in the annular rail to adopt bolted connection between with the pivot seat, rotate the processing station and be the L font setting, and be equipped with the removal wheel that can carry out annular movement on the workstation in the bottom of rotating the processing station, be provided with the brake block on the removal wheel.

Preferably, the inner wall of the outer ring support arm mounting groove is provided with a bolt hole which is matched with a bolt to fix the outer ring support arm and is in a groove shape along the horizontal direction, a screw hole for fixing the outer ring support arm is arranged above the rotating shaft seat, and two brake pads are arranged and symmetrically arranged on the left side and the right side of the movable wheel.

Preferably, the workpiece placing base is provided with a workpiece fastening device installation groove, the workpiece fastening device comprises a first support of a fixing piece installation sliding block pushing screw rod which is fixed at the front end of the workpiece fastening device installation groove and provided with a first through hole, a second support of the fixing piece installation sliding block pushing screw rod which is fixed at the rear end of the workpiece fastening device installation groove and provided with a second through hole, fixing piece installation sliding block pushing screws which are respectively installed in the first support of the fixing piece installation sliding block pushing screw rod and the second support of the fixing piece installation sliding block pushing screw rod through bearings at the front end and the rear end, fixing piece installation sliding blocks which penetrate through the fixing piece installation sliding block pushing screw rod and are in sliding fit with groove walls at two sides of the workpiece fastening device installation groove, a third through hole along the length direction of the workpiece fastening device installation groove is formed at the lower part of the fixing piece installation sliding block and is in spiral fit with the fixing piece installation sliding block pushing screw rod, the fixing piece installation sliding block pushing screw extending out of the second support of the fixing piece installation sliding block pushing screw is provided with a sliding block locking nut, the left end and the right end of the fixing piece installation sliding block are symmetrically provided with guide grooves respectively, the guide grooves are arranged along the up-down direction of the front end of the fixing piece installation sliding block, positive fastening blocks are respectively inserted into the guide grooves, the positive fastening blocks are of convex structures, the rear ends of the positive fastening blocks are inserted into the guide grooves, the inner sides of the front ends of the positive fastening blocks are provided with detachable racks, the middle part of the fixing piece installation sliding block is provided with a fourth through hole penetrating through the length direction of the fixing piece installation sliding block, the front end and the rear end of the fourth through hole are respectively provided with a gear rotation handle installation bearing, the inner holes of the gear rotation handle bearings at the front end and the rear end of the fourth through hole are penetrated with a gear rotation locking mechanism, the front end face of the gear rotating handle, which extends out of the fixing piece mounting sliding block, is provided with a gear, the gear is meshed with the detachable rack of the positive fastening block, and the positive fastening block can be driven to slide up and down along the guide groove.

Preferably, the two side walls of the fixing piece installation sliding block are provided with first convex strips along the length direction of the workpiece fastening device installation groove, and the two side wall of the workpiece fastening device installation groove is provided with first grooves which are in sliding fit with the first convex strips of the two side walls of the fixing piece installation sliding block.

Preferably, the gear rotary locking mechanism is in a nut or pin groove structure.

Preferably, the side surface of the positive fastening block above the gear is provided with a fifth through hole penetrating through the width directions of the two positive fastening blocks, a cross rod is penetrated in the fifth through hole of the two positive fastening blocks, the cross rod is tightly matched with the fifth through hole of the two positive fastening blocks, and the cross rod is positioned on the outer sides of the two positive fastening blocks and fixed through nuts.

Preferably, the upper part of the fixing piece installation slide block is provided with a workpiece lateral clamping mechanism, the workpiece lateral clamping mechanism comprises a clamping mechanism sliding groove which is arranged at the upper part of the fixing piece installation slide block, the front end of the clamping mechanism sliding groove is provided with a third support, a side fastening clamping rod lifting pushing block is arranged in the clamping mechanism sliding groove, the side fastening clamping rod lifting pushing block is of a lifting telescopic rod structure, the lower part of the side fastening clamping rod lifting pushing block is arranged in the clamping mechanism sliding groove and is in sliding tight fit with the groove walls at the two sides of the clamping mechanism sliding groove, the upper part exceeds the upper surface of the fixing piece installation slide block, the middle part of the lower part of the side fastening clamping rod lifting pushing block is provided with a side fastening clamping rod pushing block screw hole, a side fastening clamping rod pushing block screw rod which is arranged along the length direction of the clamping mechanism sliding groove is penetrated in the side fastening clamping rod pushing block screw hole, the rear end of the fixing piece installation slide block is provided with a side fastening clamp rod pushing block screw rod installation hole, the rear end of the side fastening clamp rod pushing block screw rod is installed in the side fastening clamp rod pushing block screw rod installation hole through a bearing, a pushing block screw rod locking nut is arranged at the part extending out of the fixing piece installation slide block, the front end of the side fastening clamp rod pushing block screw rod is installed in a third support through a bearing, the part of the side fastening clamp rod lifting pushing block above the fixing piece installation slide block is provided with two side fastening clamp rods, one end of each side fastening clamp rod is connected to the side fastening clamp rod lifting pushing block in a rotatable state along the direction parallel to the upper surface of the fixing piece installation slide block, the other end of each side fastening clamp rod is arranged at the upper end of the positive fastening block, a tension spring is arranged between the two side fastening clamp rods, the upper end of the positive fastening block is provided with a side fastening clamp rod rotatable support capable of rotating along the direction parallel to the upper surface of the positive fastening block, the other end of the side fastening clamping rod is arranged on the rotatable bracket of the side fastening clamping rod in a penetrating way.

Preferably, the two side fastening clamping rods are provided with balance telescopic rods which are connected with the two side fastening clamping rods and are close to the tension springs.

Preferably, the front ends of the two side fastening clamp rods are respectively provided with a side fastening clamp piece which is arranged along the upper surface parallel direction of the fixing piece installation sliding block and is angled to the side fastening clamp rods.

The invention provides a processing method of a workpiece processing platform of a numerical control machine tool, which comprises the following steps:

(1) Increasing and decreasing the outer ring support arms according to the number of the machined workpieces:

and (3) adding a support arm of the outer ring: inserting new outer ring support arms into the outer ring support arm mounting grooves of the rotating shaft seat through the track inlets and outlets, adjusting the positions of the loaded outer ring support arms to enable the outer ring support arms to form a uniform distribution state on the workbench, specifically adjusting the positions of the outer ring support arms according to the sizes of the workpieces to ensure that each workpiece has enough processing space, fixing the outer ring support arms on the rotating shaft seat by using bolts, fixing firmly, and finally installing a rotating processing station and a lifting processing station at the outer end of each outer ring support arm to enable a moving wheel and a brake pad of the rotating processing station to be arranged on the upper surface of the workbench;

Reducing the outer ring support arm: disassembling connecting bolts between the outer ring support arms and the rotating shaft seat, taking out the disassembled outer ring support arms at the mounting groove of the outer ring support arms of the rotating shaft seat through a track inlet and outlet 123, adjusting the positions of the rest outer ring support arms so as to enable each outer ring support arm to form an even distribution state on a workbench, fixing the outer ring support arms on the rotating shaft seat by using bolts, fixing firmly, and finally mounting a rotating processing station and a lifting processing station at the outer end of each outer ring support arm so that a moving wheel and a brake pad of the rotating processing station are arranged on the upper surface of the workbench;

(2) And (3) installing a workpiece:

the workpiece is placed on a workpiece placement base, a fixing piece installation sliding block pushing screw rod is rotated to move the fixing piece installation sliding block to the position close to the workpiece, then a gear rotating handle is rotated according to the height of the workpiece, the gear is rotated, the two positive fastening blocks are adjusted to the height capable of pressing the workpiece from the front through meshing of the gear and a detachable rack and a cross rod, meanwhile, the side fastening clamping rod is adjusted to be capable of lifting the pushing block, the side fastening clamping rod is parallel to the upper surface direction of the fixing piece installation sliding block, then the fixing piece installation sliding block pushing screw rod is rotated to enable the positive fastening block to press the workpiece, meanwhile, the side fastening clamping rod pushing screw rod is rotated, the side fastening clamping rod penetrates through a side fastening clamping rod rotatable support to move to two lateral directions, the workpiece is clamped from a side bag, then the side fastening clamping piece is rotated, the side fastening clamping piece is abutted against the workpiece, and the workpiece is reliably fixed on a workpiece positioning mechanism through a workpiece fastening device mounting groove and a workpiece fastening device which are oppositely arranged on the workpiece placement base;

When the workpiece is large or abnormal, the clamping of the workpiece can be finished simultaneously by adjusting the position of the outer ring support arm or by two or more groups of workpiece positioning mechanisms;

(3) Moving the workpiece to a position to be processed:

the upper machine table moving motor of the lower machine table is controlled to rotate, so that the workbench of the upper machine table moves to a set position along a transverse track under the rotating action of the lead screw, the turntable driving mechanism is started to drive the workbench and the rotating shaft seat to rotate, the outer ring support arm rotates along with the workbench, and the rotating machining station is positioned to a target position along with the rotation of the outer ring support arm;

(4) Machining a workpiece:

after the positioning of the rotary machining station is finished, starting a lifting cylinder to enable a lifting seat and a lifting platform to perform lifting movement, enabling the lifting platform to move the workpiece to a machining position, and finishing the machining of all workpieces and all working procedures of the workpieces on all workpiece positioning mechanisms fixed on the workbench through program setting;

(5) And (5) removing the workpiece:

after finishing the processing operation, start the lift cylinder, make lifting seat and lift platform descend to initial position, start the revolving stage actuating mechanism, will rotate the processing station and reset to initial position, the last board of control lower board removes the motor rotation, makes the workstation transversely move back to initial position, takes off the work piece that processes again.

Compared with the prior art, the invention has the beneficial effects that:

(1) The workpiece positioning mechanism realizes reliable clamping of workpieces in various application ranges, especially nonstandard workpieces, in front, back, left and right, single front and back fixing or left and right clamping or single positive fastening block fixing can be selected according to processing requirements, different workpiece processing can be applied, the operation is convenient and flexible, the applicability is strong, the clamping of large workpieces and special-shaped workpieces can be realized through the combination of the workpiece positioning mechanisms, the application range of a processing platform is enlarged, and the processing precision is ensured;

(2) The workbench, the rotary processing station and the lifting processing station realize accurate positioning of the workpiece positions, improve the processing efficiency and the processing precision, simultaneously facilitate the realization of one-time clamping and multi-working-procedure processing of multiple workpieces, further improve the working efficiency and enhance the adaptability and the universality of the machine tool;

(3) The rotating shaft seat and the outer ring support arm provide flexible and reliable structures for clamping multiple workpieces, the clamping quantity can be increased or decreased through the increase or decrease of the outer ring support arm, the rotating shaft seat provides a reliable fixing structure for the outer ring support arm, the angle of the outer ring support arm relative to the rotating shaft seat can be finely adjusted according to the specific shape and the size of the workpieces and the specific technological requirements in the machining process, the machining efficiency and the machining precision are greatly improved, and the reliable fixing of the workpieces can be further realized through the fixing of the rotating machining work displacement wheels;

(4) The turntable adopts a horizontal cam turntable structure, so that the accurate control of the rotation of the workbench is realized, the rotation is stable, the accuracy of the position of a workpiece is ensured, and the machining precision of the workpiece is improved;

(5) The turntable and the workbench realize transverse movement in a mode that the motor drives the screw rod to rotate, so that the position precision and the efficiency of the transverse movement are greatly improved, and the precision and the efficiency of workpiece processing are improved;

(6) The full-automatic accurate control of workpiece clamping of the workpiece positioning mechanism, workpiece lifting of a lifting processing station, rotation of a workbench and transverse movement can be realized through the program design of the control system of the numerical control machine tool and the application of a corresponding transmission mechanism, a cylinder, a sensor and the like, the whole processing process does not need manual operation, the full-automatic operation of a workpiece processing platform is realized, and the production efficiency and the processing precision are improved;

(7) All parts of the workpiece processing platform can completely meet the requirements of more users through a modularized design, and parts are easy to maintain and replace, so that the use and maintenance cost of the machine tool is greatly reduced.

Drawings

FIG. 1 is a schematic side view of a workpiece processing platform of a numerical control machine tool;

FIG. 2 is a schematic diagram of the whole structure of a workpiece processing platform of a numerical control machine tool;

FIG. 3 is a schematic view of a spindle base structure of a workpiece processing platform of a numerical control machine tool according to the present invention;

FIG. 4 is a schematic view of a base structure of a workpiece positioning mechanism of a workpiece processing platform of a numerical control machine tool according to the present invention;

FIG. 5 is a schematic diagram of a workpiece positioning mechanism of a workpiece processing platform of a numerical control machine tool;

FIG. 6 is an enlarged view of the structure of a workpiece positioning mechanism of a workpiece processing platform of a numerical control machine tool according to the present invention;

fig. 7 is an exploded view of a workpiece positioning mechanism of a workpiece processing platform of a numerical control machine tool according to the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to limit the invention, so that those skilled in the art may better understand the invention and practice it.

Examples

Referring to fig. 1-7, a workpiece processing platform of a numerically-controlled machine tool comprises an upper machine table 1 for clamping and processing a workpiece, a lower machine table 2 which is arranged below the upper machine table 1 and can enable the upper machine table 1 to transversely move, wherein the upper machine table 1 comprises a workbench 11, a rotating shaft seat 12 coaxially arranged at the central position above the workbench 11, a rotating table 17 arranged below the workbench 11, a rotating table driving mechanism 13 which is arranged at one side of the rotating table 17 and drives a rotating shaft of the rotating table 17 to rotate so as to drive the workbench 11 to rotate, an outer ring support arm 14 which is arranged on the rotating shaft seat 12 and can rotate around the central axis of the rotating shaft seat 12, a rotary processing station 15 which is arranged above the workbench 11 and fixedly connected with the outer ring support arm 14, and a lifting processing station 16 which is arranged on the rotary processing station 15.

First, the turntable 17 is a horizontal cam turntable, the turntable driving mechanism 13 is a driving motor, the turntable driving mechanism 13 is installed on one side of the turntable 17 and is used for driving a rotating shaft of the turntable 17 to rotate, the workbench 11 is fixedly connected to the upper end of the rotating shaft of the turntable 17 and can rotate along with the rotation of the rotating shaft of the turntable 17, the rotating shaft seat 12 is coaxially installed at the central position above the workbench 11, the outer ring support arm 14 is installed on the rotating shaft seat 12 according to process requirements, the rotating processing station 15 is installed above the workbench 11 at the outer end of the outer ring support arm 14, and the outer ring support arm 14 is fixedly connected with the outer end of the outer ring support arm 14.

A lifting machining station 16 is arranged on the rotary machining station 15, and the lifting machining station 16 can move a tool or a workpiece up and down in the machining process so as to realize different machining requirements; and installing a numerical control system and a corresponding electric control element for controlling the operation and the processing process of the whole processing platform.

The lower machine 2 comprises a platform base 21, a transverse track 24 arranged on the platform base 21, a transverse moving seat 22 arranged on the transverse track 24, an upper machine moving motor 23 arranged in the middle of one side of the platform base 21, and a screw rod 25 arranged in the middle of the upper machine moving motor 23 and driven to rotate by the upper machine moving motor 23, wherein the transverse track 24 is provided with two rotating tables, which are respectively arranged on two sides of the length direction of the platform base 21, the rotating tables 17 are arranged on the transverse track 24 through the transverse moving seat 22, in order to ensure that the rotating tables 17 are stably arranged and move on the transverse track 24, the transverse moving seat 22 is provided with four transverse moving seats, and the two transverse moving seats are arranged on the two transverse tracks 24 for better supporting the rotating tables 17 to move along the transverse track 24, and the screw rod 25 is matched with the rotating tables 17 through threads.

The rotating shaft seat 12 is coaxially and fixedly arranged above the workbench 11, the rotating shaft seat 12 is provided with an outer ring support arm mounting groove 121, an annular track 122 is arranged in the outer ring support arm mounting groove 121, the annular track 122 is provided with a track inlet and outlet 123 capable of accommodating the outer ring support arm 14, the outer ring support arm 14 is clamped in the annular track 122 and is connected with the rotating shaft seat 12 by bolts, the inner wall of the outer ring support arm mounting groove 121 is provided with bolt holes matched with the bolts to fix the outer ring support arm 14, the bolt holes can be arranged in a groove shape along the horizontal direction, thus the outer ring support arm 14 can be rotationally adjusted by a certain angle relative to the rotating shaft seat 12 and the workbench 11 around the central axis of the rotating shaft seat 12 before clamping a workpiece and during processing the workpiece according to the shape and processing technology requirements of the workpiece, the workpiece is positioned at a position more favorable for processing, and the processing efficiency of the processing platform is improved.

Through setting up outer lane support arm mounting groove 121 and annular track 122, outer lane support arm 14 can install in a flexible way and business turn over in pivot seat 12, and this kind of design makes upper machine 1 can adapt to the work piece processing demand of different sizes and shapes, provides bigger flexibility, adopts bolted connection between outer lane support arm 14 and the pivot seat 12, provides stable and firm bearing structure, and this is very important to stability and precision in the course of working.

According to the scheme, the outer ring support arms 14 can be conveniently moved in and out, and can be quickly replaced when the upper machine 1 runs, so that the number of machined workpieces is required, and the shape and size requirements of different workpieces are met, the operation flow is simplified, the downtime of the upper machine 1 is reduced, the production efficiency is improved, the workpieces can be reliably kept on the workbench 11 of the upper machine 1 through the design of the annular track 122, the problems that the workpieces are deviated or damaged due to swinging or vibration and the like are avoided, the mounting grooves of the outer ring support arms 14 and the design of the annular track 122 enable the upper machine 1 not to have potential safety hazards such as falling or swinging of the support arms during running, bolt holes which are matched with bolts to fix the outer ring support arms 14 in a groove shape along the horizontal direction are formed in the inner wall of the outer ring support arm mounting groove 121, so that the central axis of each outer ring support arm 14 can have a certain rotation angle relative to the rotating shaft seat 12 and the workbench 11, the workpieces with different shapes and sizes and machining requirements of different procedures are convenient, flexible, efficient and high applicability is strong.

The rotary processing station 15 is L-shaped, a moving wheel 151 capable of moving on the workbench 11 in a ring shape is arranged at the bottom of the rotary processing station 15, a brake block 152 is arranged on the moving wheel 151, the brake block 152 can be used for limiting and fixing the moving wheel 151, and in order to ensure the reliability of the rotary processing station 15 during limiting and fixing, the brake block 152 is provided with two brake blocks which are symmetrically arranged at the left side and the right side of the moving wheel 151; specifically, the rotary processing station 15 is welded or bolted to be fixed into an L-shaped structure by two steel plates, a vertical steel plate of the two steel plates with the L-shaped structure is fixed at the outer end of the outer ring support arm 14, and a moving wheel 151 is fixedly installed below a horizontal steel plate of the two steel plates with the L-shaped structure.

The rotary processing station 15 is arranged in an L shape and can move annularly at the bottom, so that the space of the upper machine table 1 is effectively utilized, and the design can simultaneously accommodate two stations of rotary processing and lifting processing in a limited space, so that the processing capacity and flexibility of the upper machine table 1 are improved; the bottom of the rotary processing station 15 is provided with a moving wheel 151, so that the rotary processing station can conveniently perform annular movement on the workbench 11. This makes the operation of going up board 1 more convenient nimble, can adjust the position and the angle of work piece fast, adapts to the processing demand of different work pieces and processes, also can be as required through bolt etc. with moving wheel 151 fixed in on the workstation 11 simultaneously to guarantee the stability and the precision requirement of processing.

The lifting processing station 16 comprises a lifting seat 161 installed on the rotary processing station 15, a lifting cylinder 162 installed in the lifting seat 161, and a lifting platform 163 driven to lift by the lifting cylinder 162, wherein the lifting platform 163 is provided with a workpiece positioning mechanism 164 for fixing and limiting a workpiece; specifically, the lifting seat 161 of the lifting processing station 16 is installed above the transverse steel plate of the two steel plates of which the rotating processing station 15 has an L-shaped structure.

The lifting processing station 16 adopts a combination of a lifting seat 161, a lifting cylinder 162 and a lifting platform 163, and realizes accurate lifting positioning and processing of a workpiece through lifting driving of the cylinder; the lifting platform 163 is fixedly provided with a workpiece positioning mechanism 164, the workpiece positioning mechanism 164 is used for fixing and limiting a workpiece, the workpiece positioning mechanism 164 comprises a workpiece placing base 1641 and a workpiece fastening device 1642, the workpiece placing base 1641 is provided with a workpiece fastening device mounting groove 16411, the workpiece fastening device 1642 comprises a first support 16421 of a fixing piece mounting slide block pushing screw rod which is fixed at the front end of the workpiece fastening device mounting groove 16411 and is provided with a first through hole, a second support 16422 of the fixing piece mounting slide block pushing screw rod which is fixed at the rear end of the workpiece fastening device mounting groove 16411 and is provided with a second through hole, the front end and the rear end of the second support 16424 of the fixing piece mounting slide block pushing screw rod are respectively arranged on the first support 16421 of the fixing piece mounting slide block pushing screw rod and the second support 16422 of the fixing piece mounting slide block pushing screw rod through bearings arranged in the through holes of the fixing piece mounting slide block pushing screw rod, the fixing member mounting slide 16423 is arranged on the fixing member mounting slide 16424 in a penetrating manner and is in sliding fit with the groove walls at two sides of the workpiece fastening device mounting groove 16411, a third through hole along the length direction of the workpiece fastening device mounting groove 16411 is formed in the lower portion of the fixing member mounting slide 16423, the fixing member mounting slide 16423 is in spiral fit with the fixing member mounting slide 16424, first raised strips along the length direction of the workpiece fastening device mounting groove 16411 are arranged on two side walls of the fixing member mounting slide 16423, first grooves which are in sliding fit with the first raised strips on two side walls of the fixing member mounting slide 16423 are formed in the groove walls at two sides of the workpiece fastening device mounting groove 16411, so that the fixing member mounting slide 16423 can move stably in the workpiece fastening device mounting groove 16411, and the fixing member mounting slide 16423 and the workpiece fastening device mounting groove 16411 can be matched in a roller manner, a slide block locking nut is arranged at one end of the fixing element installation slide block pushing screw 16424 extending out of the fixing element installation slide block pushing screw second support 16422, the fixing element installation slide block pushing screw 16424 can be locked, no rotation is caused, the front end of the fixing element installation slide block 16423 is symmetrically provided with guide grooves 164231 along the depth direction of the workpiece fastening device installation groove 16411, namely, the up-down direction of the front end of the fixing element installation slide block 16423, namely, the guide grooves are arranged along the up-down direction of the front end of the fixing element installation slide block 16423, positive fastening blocks 164232 are respectively inserted into the guide grooves 164231, the rear end of the positive fastening blocks 164232 of the convex structure is inserted into the guide grooves 164231, the front end of the positive fastening blocks 164232 of the convex structure is positioned outside the front end surface of the fixing element installation slide block 16423, the inner side of the front end of the positive fastening blocks 164232 of the convex structure is provided with detachable racks, the middle part of the fixing member mounting slide block 16423 is provided with a fourth through hole 164233 penetrating the length direction of the fixing member mounting slide block 16423, the front end and the rear end of the fourth through hole 164233 are respectively provided with a gear rotating handle mounting bearing, the inner holes of the gear rotating handle bearing at the front end and the rear end of the fourth through hole 164233 are penetrated with a gear rotating handle 164234, one end of the rear end of the gear rotating handle 164234 extending out of the fourth through hole 164233 is provided with a gear rotating locking mechanism which can lock the gear rotating handle 164234 to prevent the gear rotating handle from rotating any, the gear rotating locking mechanism can be a nut or a pin groove structure, the rear end of the gear rotating handle 164234 can be provided with a rear end surface extending out of a workpiece fastening device mounting groove 16411 so as to facilitate operation, the front end surface of the front end of the gear rotating handle 164234 extending out of the fixing member mounting slide block 16423 is provided with a gear 164235, the gear 164235 is meshed with a detachable rack arranged on the inner side of the front end of the positive fastening block 164232 and can drive the positive fastening block 164232 to slide up and down along the guide groove 164231, the front and back rotation of the gear 164235 and the detachable racks inside the front ends of the front fastening blocks 164232 can respectively drive the left and right front fastening blocks 164232 to ascend, so that in order to ensure that the two front fastening blocks 164232 can ascend reliably simultaneously when the two front fastening blocks 164232 are required to ascend simultaneously, the side surfaces of the two front fastening blocks 164232 above the gear 164235 are provided with fifth through holes 164237 penetrating through the width directions of the two front fastening blocks 164232, cross bars 164236 are penetrated in the fifth through holes 164237 of the two front fastening blocks 164232, the cross bars 164236 are tightly matched with the fifth through holes 164237 of the two front fastening blocks, and the cross bars 164236 penetrating out of the outer sides of the two front fastening blocks 164232 can be fixed through nuts so as to prevent the cross bars 164236 from sliding out of the fifth through holes 164237; the upper part of the fixing member mounting slide block 16423 is provided with a workpiece lateral clamping mechanism 16425, the workpiece lateral clamping mechanism 16425 comprises a clamping mechanism sliding groove 164251 arranged at the upper part of the fixing member mounting slide block 16423, the front end of the clamping mechanism sliding groove 164251 is provided with a third support 164258, the third support 164258 is provided with a bearing, a side fastening clamp bar lifting pushing block 164252 is arranged in the clamping mechanism sliding groove 164251, the side fastening clamp bar lifting pushing block 164252 is of a lifting telescopic bar structure, the lower part of the side fastening clamp bar lifting pushing block 164252 is arranged in the clamping mechanism sliding groove 164251 and is in sliding tight fit with the groove walls at two sides of the clamping mechanism sliding groove 164251, the upper part exceeds the upper surface of the fixing member mounting slide block 16423, the middle part of the lower part of the side fastening clamp bar lifting pushing block 164252 is provided with a side fastening clamp bar pushing block screw hole 164257, a side fastening clamp bar pushing block screw 164253 arranged along the length direction of the clamping mechanism sliding groove 164251 is arranged in a penetrating way in the side fastening clamp bar pushing block screw hole 164257, the rear end of the fixing member mounting slider 16423 is provided with a side-fastening-rod-pushing-block-screw mounting hole in which a bearing is provided, the rear end of the side-fastening-rod-pushing-block screw 164253 is mounted on the rear end of the fixing member mounting slider 16423 through the bearing in the side-fastening-rod-pushing-block-screw mounting hole, and a pushing-rod-locking nut is provided at a portion extending out of the fixing member mounting slider 16423, the front end of the side-fastening-rod-pushing-rod-164253 is mounted in the bearing of the third support 164258, the portion of the side-fastening-rod liftable pushing-rod 164252 above the fixing member mounting slider 16423 is provided with two side-fastening-rods 164254, one end of each side-fastening-rod 164254 is rotatably connected to the side-fastening-rod liftable pushing-block 164252 in a direction parallel to the upper surface of the fixing member mounting slider 16423, the other end is provided at the upper end of the positive-fastening-rod 164232, tension springs 164255 are arranged between the two side fastening clamp rods 164254, balance telescopic rods 164238 which are connected with the two side fastening clamp rods 164254 are arranged on the two side fastening clamp rods 164254 which are close to the tension springs 164255, side fastening clamp rod rotatable brackets 164256 which can rotate along the direction parallel to the upper surface of the front fastening block 164232 are arranged at the upper end of the front fastening block 164232, the other ends of the side fastening clamp rods 164254 are arranged on the side fastening clamp rod rotatable brackets 164256 in a penetrating way, side fastening clamp members 164259 which are arranged along the upper surface parallel direction of the fixing piece mounting slide blocks 16423 and are arranged at an angle with the side fastening clamp rods 164254 are arranged at the front end of each side fastening clamp rod 164254, the angle between the side fastening clamp members 164259 and the side fastening clamp rods 164254 is 90 degrees at the best, the side fastening clamp members 164259 can be made of different materials according to workpiece processing requirements, when fixing a workpiece, the fixing piece mounting slide blocks 16424 are pushed by rotating the fixing piece mounting slide blocks 16424 to move the fixing piece mounting slide blocks 16423 to the vicinity of workpieces, then the gear rotation handle 164234 is rotated according to the height of the workpiece, the gear 164235 is rotated, at this time, only one of the two positive fastening blocks 164232 is provided with a detachable rack, the gear 164235 is engaged with the detachable rack of the positive fastening block 164232, the positive fastening block 164232 is adjusted to a height capable of pressing the workpiece from the front, at the same time, since the two positive fastening blocks 164232 are connected by the cross bar 164236, the other positive fastening block 164232 is also raised to a corresponding height along with the rise, at this time, the locking mechanism is locked, the gear rotation handle 164234 is prevented from rotating, at the same time, the height of the side fastening clamp bar liftable push block 164252 is adjusted, the side fastening clamp bar 164254 is parallel to the upper surface direction of the fixing member mounting slider 16423, then the fixing member mounting slider pushes the screw 16424, the positive fastening block 164232 is pressed tightly against the workpiece, and the slider locking nut is screwed, at the same time, the side fastening clamp bar push bar screw 164253 is rotated, the side fastening clamping bars 164254 penetrate through the side fastening clamping bar rotatable support 164256 to move towards two sides, the workpiece is clamped from the side bags, the push block screw lock nut is screwed, then the side fastening clamping pieces 164259 are rotated, the side fastening clamping pieces 164259 are propped against the workpiece, the distance between the side fastening clamping pieces 164259 can be adjusted to enable the side fastening clamping bars 164254 to touch or not touch the workpiece, of course, when the front side and the rear side of the workpiece are not fixed, the workpiece fastening device mounting groove 16411 and the workpiece fastening device 1642 of the workpiece positioning mechanism 164 are symmetrically arranged, the workpiece positioning mechanism can realize front and rear and left and right simultaneous clamping through the workpiece fastening device 1642 in a limited space, simultaneously, single front and rear fixing or left and right clamping or single right fastening block fixing can be selected according to processing requirements, the automatic clamping control can be realized by the arrangement and application of a transmission mechanism, a cylinder, a sensor and the like, the purpose of automatic machine tool processing is achieved, and the automatic machine tool processing is particularly suitable for mass processing of irregular non-standard workpieces.

The scheme can realize different types of machining process combinations, for example, the lifting machining station 16 can be used for drilling or cutting operation in the rotating machining process, so that the multifunctional machining capability of the machining platform is improved; the workpiece positioning mechanism 164 can effectively ensure reliable positioning and clamping of the workpiece, improve the safety, stability and precision of machining, and ensure the stability, safety and full-automatic control of rotation, lifting and machining processes through reasonable program design and control.

A processing method adopting a numerical control machine tool workpiece processing platform comprises the following steps:

(1) Increasing and decreasing the outer ring support arms 14 according to the number of the processed workpieces:

when the number of the outer ring support arms 14 is increased before machining, new outer ring support arms 14 are inserted into the outer ring support arm mounting grooves 121 of the rotating shaft seat 12 through the track inlets and outlets 123, the positions of the loaded outer ring support arms 14 are adjusted so that the outer ring support arms 14 form an even distribution state on the workbench 11, if the sizes of the workpieces are different and machining is needed together, the positions of the outer ring support arms 14 can be specifically adjusted according to the sizes of the workpieces so as to ensure that each workpiece has enough machining space, then the outer ring support arms 14 are fixed on the rotating shaft seat 12 by bolts and are firmly fixed, finally, the rotating machining station 15 and the lifting machining station 16 are installed at the outer end of each outer ring support arm 14, so that the moving wheel 151 of the rotating machining station 15 is placed on the upper surface of the workbench, the annular movement and lifting of the workpieces on the workbench 11 are realized, and the brake pad 152 is put down when the workpieces are needed to be fixed, and the outer ring support arms 14 are more reliably fixed;

When the number of the workpieces is small, in order to save the processing time and improve the efficiency, before processing, the outer ring support arms 14 are firstly reduced, connecting bolts between the outer ring support arms 14 and the rotating shaft seat 12 are disassembled, the disassembled outer ring support arms 14 are taken out from the outer ring support arm mounting grooves 121 of the rotating shaft seat 12 through the track inlets and outlets 123, the positions of the rest outer ring support arms 14 are adjusted so that each outer ring support arm 14 forms an even distribution state on the workbench 11, then the outer ring support arms 14 are fixed on the rotating shaft seat 12 by using bolts and are firmly fixed, finally, a rotary processing station 15 and a lifting processing station 16 are arranged at the outer end of each outer ring support arm 14, so that a moving wheel 151 of the rotary processing station 15 is placed on the upper surface of the workbench, annular movement and lifting of the workpieces on the workbench 11 are realized, and a brake block 152 is put down when the fixing is needed, so that the fixing of the outer ring support arms 14 is more reliable;

(2) And (3) installing a workpiece:

placing the workpiece on a workpiece placement base 1641, rotating a fixing piece installation slider pushing screw 16424 to move the fixing piece installation slider 16423 to the vicinity of the workpiece, rotating a gear rotation handle 164234 according to the height of the workpiece, rotating a gear 164235, engaging a detachable rack with a gear and a cross bar 164236 to adjust two positive fastening blocks 164232 to a height capable of pressing the workpiece from the front, simultaneously adjusting the height of a side fastening clamp rod liftable pushing block 164252 to enable the side fastening clamp rod 164254 to be parallel to the upper surface direction of the fixing piece installation slider 16423, rotating the fixing piece installation slider pushing screw 16424 to enable the positive fastening block 164232 to press the workpiece, simultaneously rotating a side fastening clamp rod pushing screw 164253 to enable a side fastening clamp rod 164254 to pass through a side fastening clamp rod rotatable bracket 164256 to move in the two lateral directions, and then rotating a side fastening clamp 164259 to enable the side fastening clamp 164259 to clamp the workpiece from the side, and fixing the workpiece on the workpiece placement base 1641 by a workpiece fastening device mounting groove 16411 and a workpiece fastening device 1642 oppositely arranged on the workpiece placement base 1641, thereby reliably fixing the workpiece on a workpiece positioning mechanism;

When the workpiece is large or is special-shaped, the single workpiece positioning mechanism 164 can not finish clamping, the reliable clamping of the workpiece can be finished simultaneously by adjusting the position of the outer ring support arm 14 or by two or more groups of workpiece positioning mechanisms 164, so that the clamping device is convenient, flexible, reliable and efficient;

(3) Moving the workpiece to a position to be processed:

the upper machine table moving motor 23 of the lower machine table 2 is controlled to rotate, so that the workbench 11 of the upper machine table 1 moves to a set position along the transverse track 24 under the rotating action of the lead screw 25, so that subsequent processing operation is facilitated, the turntable driving mechanism 13 is started to drive the workbench 11 and the rotating shaft seat 12 to rotate, the outer ring support arm 14 rotates along with the workbench, and the rotary processing station 15 is positioned to a target position along with the rotation of the outer ring support arm 14;

(4) Machining a workpiece:

after the positioning of the rotary processing station 15 is completed, the lifting cylinder 162 is started to enable the lifting seat 161 and the lifting platform 163 to perform lifting movement, the lifting platform 163 moves the workpiece to a processing position, and the processing of all the workpieces on all the workpiece positioning mechanisms 164 fixed on the workbench 11 and all the working procedures of the workpieces are completed through program setting;

(5) And (5) removing the workpiece:

after the machining operation is completed, the lifting cylinder 162 is started, the lifting seat 161 and the lifting platform 163 are lowered to the initial positions, the turntable driving mechanism 13 is started, the rotary machining station 15 is reset to the initial positions, the upper machine table moving motor 23 of the lower machine table 2 is controlled to rotate, the workbench 11 is transversely moved back to the initial positions, and the machined workpiece is removed.

Of course, the embodiment of the invention can also be matched with a mechanical arm to complete all automatic operations of upper and lower workpieces.

The above-mentioned embodiments of the present invention are not intended to limit the scope of the present invention, and the embodiments of the present invention are not limited thereto, and all kinds of modifications, substitutions or alterations made to the above-mentioned structures of the present invention according to the above-mentioned general knowledge and conventional means of the art without departing from the basic technical ideas of the present invention shall fall within the scope of the present invention.

Claims (8)

1. The workpiece machining platform of the numerical control machine tool comprises an upper machine table for clamping and machining a workpiece, and a lower machine table which is arranged below the upper machine table and can enable the upper machine table to transversely move, and is characterized in that the upper machine table comprises a workbench, a rotating shaft seat coaxially arranged at the center position above the workbench, a rotating table arranged below the workbench, a rotating table driving mechanism which is arranged at one side of the rotating table and drives a rotating shaft of the rotating table to rotate so as to drive the workbench to rotate, an outer ring support arm which is arranged on the rotating shaft seat and can rotate around the central axis of the rotating shaft seat, a rotary machining station which is arranged above the workbench and fixedly connected with the outer ring support arm, and a lifting machining station which is arranged on the rotary machining station, wherein the lifting machining station comprises a lifting seat arranged on the rotary machining station, a lifting cylinder arranged in the lifting seat, and a lifting platform which is driven to lift by the lifting cylinder, and the workpiece positioning mechanism which is used for fixing and limiting the workpiece is fixedly arranged on the lifting platform comprises a workpiece placing base and a workpiece fastening device;

The rotary shaft seat is provided with an outer ring support arm mounting groove, an annular track is arranged in the outer ring support arm mounting groove, a track inlet and outlet capable of accommodating the outer ring support arm to enter and exit is arranged on the annular track, the outer ring support arm is clamped in the annular track and is connected with the rotary shaft seat by a bolt, the rotary processing station is L-shaped, the bottom of the rotary processing station is provided with a movable wheel capable of performing annular movement on a workbench, and the movable wheel is provided with a brake pad;

the inner wall of the outer ring support arm mounting groove is provided with a bolt hole which is matched with a bolt to fix the outer ring support arm and is in a groove shape along the horizontal direction, a screw hole for fixing the outer ring support arm is arranged above the rotating shaft seat, and two brake blocks are arranged and symmetrically arranged on the left side and the right side of the movable wheel;

the workpiece placing base is provided with a workpiece fastening device installation groove, the workpiece fastening device comprises a first support of a fixing piece installation sliding block pushing screw rod which is fixed at the front end of the workpiece fastening device installation groove and provided with a first through hole, a second support of the fixing piece installation sliding block pushing screw rod which is fixed at the rear end of the workpiece fastening device installation groove and provided with a second through hole, fixing piece installation sliding block pushing screws which are respectively installed in the first support of the fixing piece installation sliding block pushing screw rod and the second support of the fixing piece installation sliding block pushing screw rod through bearings at the front end and the rear end, fixing piece installation sliding blocks which penetrate through the fixing piece installation sliding block pushing screw rod and are in sliding fit with the groove walls at the two sides of the workpiece fastening device installation groove, a third through hole along the length direction of the workpiece fastening device installation groove is formed at the lower part of the fixing piece installation sliding block and is in spiral fit with the fixing piece installation sliding block pushing screw rod, the fixing piece installation sliding block pushing screw extending out of the second support of the fixing piece installation sliding block pushing screw is provided with a sliding block locking nut, the left end and the right end of the fixing piece installation sliding block are symmetrically provided with guide grooves respectively, the guide grooves are arranged along the up-down direction of the front end of the fixing piece installation sliding block, positive fastening blocks are respectively inserted into the guide grooves, the positive fastening blocks are of convex structures, the rear ends of the positive fastening blocks are inserted into the guide grooves, the inner sides of the front ends of the positive fastening blocks are provided with detachable racks, the middle part of the fixing piece installation sliding block is provided with a fourth through hole penetrating through the length direction of the fixing piece installation sliding block, the front end and the rear end of the fourth through hole are respectively provided with a gear rotation handle installation bearing, the inner holes of the gear rotation handle bearings at the front end and the rear end of the fourth through hole are penetrated with a gear rotation locking mechanism, the front end surface of the front end of the gear rotating handle, which extends out of the fixing piece mounting sliding block, is provided with a gear, and the gear is meshed with the detachable rack of the positive fastening block and can drive the positive fastening block to slide up and down along the guide groove;

The upper part of the fixing piece installation slide block is provided with a workpiece lateral clamping mechanism, the workpiece lateral clamping mechanism comprises a clamping mechanism sliding groove which is arranged at the upper part of the fixing piece installation slide block, the front end of the clamping mechanism sliding groove is provided with a third support, a side fastening clamping rod lifting pushing block is arranged in the clamping mechanism sliding groove, the side fastening clamping rod lifting pushing block is of a lifting telescopic rod structure, the lower part of the side fastening clamping rod lifting pushing block is arranged in the clamping mechanism sliding groove and is in sliding tight fit with the groove walls at the two sides of the clamping mechanism sliding groove, the upper part of the side fastening clamping rod lifting pushing block exceeds the upper surface of the fixing piece installation slide block, the middle part of the lower part of the side fastening clamping rod lifting pushing block is provided with a side fastening clamping rod pushing block screw hole, a side fastening clamping rod pushing block screw rod which is arranged along the length direction of the clamping mechanism sliding groove is penetrated in the side fastening clamping rod pushing block screw hole, the rear end of the fixing piece installation slide block is provided with a side fastening clamp rod pushing block screw rod installation hole, the rear end of the side fastening clamp rod pushing block screw rod is installed in the side fastening clamp rod pushing block screw rod installation hole through a bearing, a pushing block screw rod locking nut is arranged at the part extending out of the fixing piece installation slide block, the front end of the side fastening clamp rod pushing block screw rod is installed in a third support through a bearing, the part of the side fastening clamp rod lifting pushing block above the fixing piece installation slide block is provided with two side fastening clamp rods, one end of each side fastening clamp rod is connected to the side fastening clamp rod lifting pushing block in a rotatable state along the direction parallel to the upper surface of the fixing piece installation slide block, the other end of each side fastening clamp rod is arranged at the upper end of the positive fastening block, a tension spring is arranged between the two side fastening clamp rods, the upper end of the positive fastening block is provided with a side fastening clamp rod rotatable support capable of rotating along the direction parallel to the upper surface of the positive fastening block, the other end of the side fastening clamping rod is arranged on the rotatable bracket of the side fastening clamping rod in a penetrating way.

2. The numerical control machine workpiece machining platform according to claim 1, wherein the lower machine table comprises a platform base, transverse tracks arranged on the platform base, transverse moving seats arranged on the transverse tracks, an upper machine table moving motor arranged in the middle of one side of the platform base, and a screw rod which is arranged in the middle of the upper side of the platform base and driven to rotate by the upper machine table moving motor, the screw rod is in threaded fit with the turntable, two transverse tracks are arranged on two sides of the length direction of the platform base respectively, four transverse moving seats are arranged on the two transverse tracks, and the turntable is arranged on the transverse tracks through the transverse moving seats.

3. The workpiece processing platform of the numerical control machine tool according to claim 1, wherein first convex strips along the length direction of the workpiece fastening device mounting grooves are arranged on two side walls of the fixing piece mounting sliding block, and first grooves which are in sliding fit with the first convex strips on two side walls of the fixing piece mounting sliding block are formed on two side walls of the workpiece fastening device mounting grooves.

4. The workpiece processing platform of a numerical control machine tool according to claim 1, wherein the gear rotary locking mechanism is of a nut or pin slot structure.

5. The numerical control machine tool workpiece processing platform according to claim 1, wherein a fifth through hole penetrating through the width directions of the two positive fastening blocks is formed in the side face, above the gear, of the positive fastening block, a cross rod is arranged in the fifth through hole of the two positive fastening blocks in a penetrating mode, the cross rod is in tight fit with the fifth through hole of the two positive fastening blocks, and the cross rod is located on the outer side of the two positive fastening blocks and fixed through nuts.

6. The workpiece processing platform of the numerical control machine tool according to claim 1, wherein balance telescopic rods for connecting the two side fastening clamping rods are arranged on the two side fastening clamping rods close to the tension springs.

7. The workpiece processing platform of the numerical control machine tool according to claim 1, wherein the front ends of the two side fastening clamping rods are respectively provided with a side fastening clamping piece which is arranged along the upper surface parallel direction of the fixing piece installation sliding block and is angled to the side fastening clamping rods.

8. A method of machining a workpiece machining bed for a numerical control machine tool according to any one of claims 1 to 7, comprising the steps of:

(1) Increasing and decreasing the outer ring support arms according to the number of the machined workpieces:

and (3) adding a support arm of the outer ring: inserting new outer ring support arms into the outer ring support arm mounting grooves of the rotating shaft seat through the track inlets and outlets, adjusting the positions of the loaded outer ring support arms to enable the outer ring support arms to form an even distribution state on the workbench, specifically adjusting the positions of the outer ring support arms according to the sizes of the workpieces to ensure that each workpiece has enough processing space, fixing the outer ring support arms on the rotating shaft seat by using bolts, fixing firmly, and finally installing a rotating processing station and a lifting processing station at the outer end of each outer ring support arm to enable a moving wheel and a brake pad of the rotating processing station to be arranged on the upper surface of the workbench;

Reducing the outer ring support arm: disassembling connecting bolts between the outer ring support arms and the rotating shaft seat, taking out the disassembled outer ring support arms through a track inlet and outlet at the mounting groove of the outer ring support arms of the rotating shaft seat, adjusting the positions of the rest outer ring support arms so that each outer ring support arm forms an even distribution state on a workbench, fixing the outer ring support arms on the rotating shaft seat by using bolts, fixing firmly, and finally mounting a rotating processing station and a lifting processing station at the outer end of each outer ring support arm so that a moving wheel and a brake pad of the rotating processing station are arranged on the upper surface of the workbench;

(2) And (3) installing a workpiece:

the workpiece is placed on a workpiece placement base, a fixing piece installation sliding block pushing screw rod is rotated to move the fixing piece installation sliding block to the position close to the workpiece, then a gear rotating handle is rotated according to the height of the workpiece, the gear is rotated, the two positive fastening blocks are adjusted to the height capable of pressing the workpiece from the front through meshing of the gear and a detachable rack and a cross rod, meanwhile, the side fastening clamping rod is adjusted to be capable of lifting the pushing block, the side fastening clamping rod is parallel to the upper surface direction of the fixing piece installation sliding block, then the fixing piece installation sliding block pushing screw rod is rotated to enable the positive fastening block to press the workpiece, meanwhile, the side fastening clamping rod pushing screw rod is rotated, the side fastening clamping rod penetrates through a side fastening clamping rod rotatable support to move to two lateral directions, the workpiece is clamped from a side bag, then the side fastening clamping piece is rotated, the side fastening clamping piece is abutted against the workpiece, and the workpiece is reliably fixed on a workpiece positioning mechanism through a workpiece fastening device mounting groove and a workpiece fastening device which are oppositely arranged on the workpiece placement base;

When the workpiece is large or abnormal, the clamping of the workpiece is finished simultaneously by adjusting the position of the outer ring support arm or two or more groups of workpiece positioning mechanisms;

(3) Moving the workpiece to a position to be processed:

the upper machine table moving motor of the lower machine table is controlled to rotate, so that the workbench of the upper machine table moves to a set position along a transverse track under the rotating action of the lead screw, the turntable driving mechanism is started to drive the workbench and the rotating shaft seat to rotate, the outer ring support arm rotates along with the workbench, and the rotating machining station is positioned to a target position along with the rotation of the outer ring support arm;

(4) Machining a workpiece:

after the positioning of the rotary machining station is finished, starting a lifting cylinder to enable a lifting seat and a lifting platform to perform lifting movement, enabling the lifting platform to move the workpiece to a machining position, and finishing the machining of all workpieces and all working procedures of the workpieces on all workpiece positioning mechanisms fixed on the workbench through program setting;

(5) And (5) removing the workpiece:

after finishing the processing operation, start the lift cylinder, make lifting seat and lift platform descend to initial position, start the revolving stage actuating mechanism, will rotate the processing station and reset to initial position, the last board of control lower board removes the motor rotation, makes the workstation transversely move back to initial position, takes off the work piece that processes again.