CN212205885U - Machine tool external working condition simulator based on automatic precision machining - Google Patents

Abstract

The utility model provides an outer operating mode analog machine of lathe based on automatic precision finishing, including the base, set up the analog machine base in the base top, set up at the Y axle subassembly of analog machine base one side, set up the X axle subassembly on the Y axle subassembly, set up the Z axle subassembly on the X axle subassembly to and be provided with the first system of inclining on the Z axle subassembly, be provided with the dial indicator on the head of inclining be provided with on the analog machine base be provided with the measurement base on the analog machine base, be provided with a benchmark system on measuring the base at least to the reading of dial indicator is for referring to, through drawing the dial indicator alignment measurement base repeatedly. The utility model is used for inspect the part.

Description

Machine tool external working condition simulator based on automatic precision machining

Technical Field

The utility model relates to a hardware technical requirement, control technique, operating mode simulation scheme, measurement scheme, automatic communication technique, NC processing technology that are used for outer operating mode analog device of lathe and supporting system. In particular to the control, operation and control of a simulator, a personnel operation scheme, a working condition simulation scheme, coordinate system creation and conversion, and the communication and control technology of the simulator and a CNC machining center or other related systems. In particular to a machine tool external working condition simulator based on automatic precision machining.

Background

At present, with the acceleration of life rhythm and the high quality of life, people have higher demands on the quality and the updating period of terminal products, and higher quality requirements and shorter production periods are provided for the manufacturing industry, so that the proportion of precision machines in enterprise production is gradually increased, and meanwhile, enterprises need to carry out lean production to shorten the manufacturing period. Lean production requires that data sharing and transmission can be realized among all processes and inspections, the clamping, alignment and inspection time on a machine tool are reduced as much as possible, the actual utilization rate of the machine tool is improved, the production auxiliary time is reduced, the reject ratio of products is reduced, and the requirements of enterprises on machining precision, production efficiency and process monitoring are met.

Taking a typical milling and discharging process in die manufacturing as an example, a workpiece needs to be aligned on a machine tool before milling, a part needs to be inspected after milling, alignment needs to be performed on an electric spark machining machine again when the process is changed to discharging machining, and inspection needs to be performed after machining. Due to the fact that clamping methods and clamps used by different types of machine tools are different, state information of parts cannot be transmitted, the parts can only be clamped and aligned for multiple times, and machining and inspection errors of the parts are further increased due to manual operation, clamping modes and the like. If process monitoring and machining parameter optimization are performed during the milling or electric discharge machining process, the machining equipment must have an online detection function, or repeated part inspection and parameter adjustment are required, resulting in a long product manufacturing cycle.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an outer operating mode analog machine of lathe based on automatic precision finishing.

The utility model adopts the technical proposal that:

a machine tool external working condition simulator based on automatic precision machining comprises

A base, a simulator base arranged above the base,

a Y shaft assembly arranged on one side of the base of the simulator, an X shaft assembly arranged on the Y shaft assembly, a Z shaft assembly arranged on the X shaft assembly, and a side head system arranged on the Z shaft assembly, wherein a dial indicator is arranged on the side head,

the simulator is characterized in that a measuring base is arranged on the simulator base, at least one reference system is arranged on the measuring base, and the measuring base is aligned by repeatedly pulling the lever dial indicator by taking the reading of the lever dial indicator as reference.

Furthermore, the Y-axis assembly comprises a Y-axis transmission mechanism arranged on one side of the base, a Y-axis guide rail arranged on the Y-axis transmission mechanism, a support column is arranged in the Y-axis guide rail, a Y-axis metering system is arranged at the Y-axis guide rail,

an X-axis transmission mechanism is arranged on the supporting column, an X-axis guide rail is arranged on the X-axis transmission mechanism, an X-axis metering system is arranged along the X-axis guide rail,

a slide is installed on an X-axis guide rail, a Z-axis transmission assembly is installed on the slide, a Z-axis transmission mechanism is installed on the Z-axis transmission assembly, a Z-axis guide rail is installed on the Z-axis transmission mechanism, a Z-axis metering system is installed on the Z-axis guide rail, and a side head system is installed on the Z-axis guide rail.

Furthermore, the X-axis transmission mechanism, the Y-axis transmission mechanism and the Z-axis transmission mechanism are selected from one of a ball screw, a linear motor and a synchronous belt transmission.

Furthermore, an alignment operation controller and a measurement operation controller are arranged in the base.

Furthermore, still be provided with display screen, alignment operation electronic hand wheel and measurement operation hand operator on the analog machine base, alignment operation electronic hand wheel and measurement operation hand operator correspond electric connection with alignment operation controller and measurement operation controller respectively.

The utility model provides a simulation machine can accomplish arbitrary process and shut down, inspects the spare part. And if the machining is qualified, continuing machining, if the machining is not qualified, repairing the machined part under the original coordinate system after the CNC machining unit is clamped according to the measurement information, and then checking the machined part again until the machined part is qualified. Can trail the whole link promptly when the test piece, the analysis solves the problem, and the online control course of working of full closed loop during volume production effectively improves the machined part quality to through processing equipment do not shut down, personnel work does not wait for, promote processing equipment efficiency by a wide margin.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a simulator body;

FIG. 2 is a schematic diagram of the accuracy of the installation and repositioning of the reference system;

3A, 3B, the installation schematic diagram of the alignment module of the simulator;

FIG. 4 is a schematic view of a contact measurement module;

FIG. 5A, FIG. 5B, FIG. 5C, FIG. 5D, FIG. 5E, FIG. 5F. schematic drawing table alignment and reference system coordinate system creation;

FIG. 6A and FIG. 6B are high-precision re-inspection diagrams after the simulator is pulled out of the table;

FIGS. 7A, 7B are diagrams of workpiece pose and critical dimension inspection;

FIG. 8 is a graph of coordinate offset of a reference system and offset of a coordinate system of a different machine;

FIG. 9A, FIG. 9B, FIG. 9C, FIG. 9D, FIG. 9E, FIG. 9F. different workpiece position transition schematic and algorithm diagram;

FIG. 10 is a flowchart comparing the clamping of the reference system with the conventional clamping;

FIG. 11 is a flow chart comparing the clamping of the datum system with the conventional clamping for inspection and trimming;

FIG. 12 is a flowchart of the integration and comparison of the multi-machine coordinate system of the reference system;

FIG. 13 is a flow chart comparing multi-function testing of the simulator with conventional multi-station testing;

FIG. 14 is a schematic view of the alignment operation of the simulator;

FIG. 15 is a schematic view of the operation and control of the measurement operation of the simulator;

fig. 16A, 16B, 16C, 16D, and 16e are schematic views of the multifunction probe.

Detailed Description

The invention will be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions are provided to explain the invention, but not to limit the invention.

Referring to fig. 1 to 16E, the utility model discloses a machine tool external working condition simulator based on automatic precision machining, include

A base 1, a simulator base 2 arranged above the base 1,

a Y shaft assembly arranged on one side of the simulator base 2, an X shaft assembly arranged on the Y shaft assembly, a Z shaft assembly arranged on the X shaft assembly, and a side head system arranged on the Z shaft assembly, wherein a dial indicator 19 is arranged on the side head,

a measuring base 16 is arranged on the simulator base 2, at least one reference system 17 is arranged on the measuring base 16, the measuring base 16 is aligned by repeatedly pulling the dial indicator 16 by taking the reading of the dial indicator 16 as reference,

then, by taking the central point of the measuring base 16 as the center, setting the original point of the fixture coordinate system by the same characteristic structure, obtaining the actual coordinate values of the original point of the coordinate system of the reference system 17 under the simulator and the CNC, recording the difference value of the three-axis coordinates for compensation, thus obtaining the overlapped construction of the coordinate systems of the simulator and the CNC different machine,

after the coordinate systems of the different machines are overlapped and built, the actual position of the workpiece to be machined and the coordinate origin position deviation value are measured by the simulator, the position deviation value and the NC machining technology are used for controlling the machining unit to work through the communication module, and the aim of alignment by the simulator is fulfilled.

In the utility model, the simulator alignment installation mode as shown in figure 3A and figure 3B is adopted, fig. 3A shows an externally-mounted mounting, which includes a side head base mounting base 100 mounted on the lower portion of the Z-axis transmission assembly, a side head base 101 disposed on the bottom of the side head base mounting base 100, an externally-mounted surface head base 107 disposed on the lower portion of the side head base 101, a contact-type side head 108 disposed on the lower portion of the externally-mounted surface head base, an externally-hung arm 102 disposed on one side of the side head base mounting base 101, a positioning knob 101 is arranged on the outer hanging arm 102, a dial indicator seat 104 is arranged at the lower end of the outer hanging arm, an external dial indicator 106 is arranged at the lower end of the dial indicator seat 104, a pre-tightening knob 103 and a fine adjustment knob 105 are arranged on an external hanging arm, the positioning knob is used for positioning the outer hanging arm on one side of the Z-axis transmission assembly, the pre-tightening knob is used for fixing the dial indicator seat and the outer hanging arm, and the fine adjustment knob is used for fine adjustment of the lever dial indicator.

Fig. 3B adopts a direct connection, which includes a side head base mounting seat mounted on the lower portion of the Z-axis transmission assembly, a direct connection side head base 110 disposed at the bottom of the side head base mounting seat, a direct connection adapter rod 109 disposed at the bottom of the direct connection side head base 110, and a direct connection dial indicator 111 disposed on the direct connection adapter rod.

Furthermore, the Y-axis assembly comprises a Y-axis transmission mechanism arranged on one side of the base, a Y-axis guide rail 10 arranged on the Y-axis transmission mechanism, a support column 9 arranged in the Y-axis guide rail 10, a Y-axis metering system arranged at the Y-axis guide rail 10,

an X-axis transmission mechanism is arranged on the supporting column 9, an X-axis guide rail 6 is arranged on the X-axis transmission mechanism 5, an X-axis metering system 8 is arranged along the X-axis guide rail 6,

the X-axis guide rail 6 is provided with a slide seat, the slide seat is provided with a Z-axis transmission assembly, the Z-axis transmission assembly is provided with a Z-axis transmission mechanism, and a Z-axis guide rail arranged on the Z-axis transmission mechanism is provided with a Z-axis metering system, and the side head system is arranged on the Z-axis guide rail.

Furthermore, the X-axis transmission mechanism, the Y-axis transmission mechanism and the Z-axis transmission mechanism are selected from one of a ball screw, a linear motor and a synchronous belt transmission.

Furthermore, an alignment operation controller and a measurement operation controller are arranged in the base.

Furthermore, still be provided with display screen, alignment operation electronic hand wheel and measurement operation hand operator on the analog machine base, alignment operation electronic hand wheel and measurement operation hand operator correspond electric connection with alignment operation controller and measurement operation controller respectively.

The utility model also provides an alignment method, which utilizes the external working condition simulator based on the automatic precision machining and comprises a simulator, a CNC and NC combined operation unit,

the reading of the lever dial indicator is taken as reference, the measuring base is aligned by repeatedly pulling the lever dial indicator,

then, the center point of the measuring base is taken as the center, the original point of the coordinate system of the clamp is set by the same characteristic structure, the actual coordinate values of the original point of the coordinate system of the reference system under the simulator and the CNC are obtained, the difference value of the three-axis coordinates is recorded for compensation, and the overlapped construction of the coordinate systems of the simulator and the CNC different machine is obtained,

after the coordinate systems of the different machines are overlapped and built, the actual position of the workpiece to be machined and the coordinate origin position deviation value are measured by the simulator, the position deviation value and the NC machining technology are used for controlling the machining unit to work through the communication module, and the aim of alignment by the simulator is fulfilled.

Further, the same reference system is established under the CNC and NC combined operation, unified alignment is carried out, a simulation machine is used as a transfer machine, and coordinate difference information of a plurality of different positions is obtained to overlap the coordinates.

Further, when the simulator is used as a relay, the coordinate system and the workpiece characteristic information obtained by creating the same reference system under the CNC and NC combined operation are transmitted to the simulator through the communication module for translation.

Furthermore, the simulator is used as a platform, the coordinate systems of the multiple devices are respectively associated with the simulator, then the simulator performs compensation operation to obtain the deviation value condition of the coordinate system of each device, and further during machining, the deviation value condition of the coordinate system is combined with the compensation information of the workpiece and transmitted to the relevant machining information, so that the multiple devices can be machined in the same coordinate system.

In the utility model, the general reference System (or clamp System) such as the MacroNano nano chuck of System 3R company can provide the comprehensive repositioning attitude deviation of up to 0.5um, solve the problem that the accumulation of positioning errors is increased due to multiple clamping among different devices, and solve the problem of repeatability of the alignment precision of different devices;

when the alignment is carried out, the table alignment fixture system is pulled based on the reference system,

setting the original point of the coordinate system of the fixture by the same characteristic structure in a split centering mode, obtaining the actual coordinate values of the original point under a simulator and a CNC, recording the difference value of the three-axis coordinates for compensation, and completing the overlapping construction work of the coordinate system of the different machine;

on the basis, the actual position of the workpiece to be machined and the offset value of the position of the origin of coordinates are measured by the simulator, the position offset value is transmitted by the information management system, and the NC machining technology is used for controlling the machining unit to work, so that the aim of alignment by the simulator can be fulfilled.

The utility model discloses a simulator can provide the comprehensive precision of unipolar 0.001mm grade, and the walking is steady. The precision can be effectively ensured in the manual meter pulling process. Furthermore, the measurement can be carried out after the meter is pulled through a metering system, the alignment precision verification is carried out through the metering system after the correction with the precision of 0.001mm, and the result is given.

In the traditional technology, each time a part is clamped, the part not only has the offset of a coordinate origin, but also has rotation of different degrees, and each time the workpiece is rotated, the accumulation of machining errors can be caused. According to the above, the same reference system is arranged in different processing units, alignment is uniformly performed, the simulator is used as a transfer machine, and the coordinate system difference information is obtained to superimpose the coordinate systems at different positions. Before each sequence conversion, the related coordinate system and the workpiece attitude information are translated and transmitted through a software system of the simulator, so that the processing precision of the part sequence conversion is not influenced by the coordinate deviation values of the clamp and each processing unit, and the processing precision is effectively ensured.

In conventional machining, when a part is machined or inspected by a certain process, the part needs to be removed from the machining unit and inspected on a measuring machine. The inspection result can only be used for qualified judgment, and cannot be used as an accurate reference for part repair due to the problem of secondary clamping errors. The utility model discloses a supporting reference system of simulator then can record the actual condition of part under the processing unit through coordinate system conversion, coincide, and gained data can directly be used for the high accuracy after relocating, and processing is restoreed to the processing unit.

In the same way, the problems that in traditional machining, inter-process detection and finished product detection must be carried out by means of the on-line detection function of the machining unit are solved, and the selection cost of machining equipment is effectively reduced.

In the traditional machining, coordinate systems of multiple machining units cannot be unified, attitude information of a workpiece clamped every time is different, and information of each unit cannot be shared or cannot be accurately shared. Based on the foregoing, the problems of uniform coordinate system between devices and ultrahigh precision clamping and resetting have been explained. Then the simulator can be used as a platform to associate the coordinate systems of the multiple devices with the simulator respectively, and then the simulator performs compensation operation to obtain the deviation value condition of the coordinate systems of the devices. And furthermore, during machining, the coordinate system deviation value condition is combined with the workpiece compensation information and transmitted to the relevant machining information, so that multiple devices can be machined in the same coordinate system, and the machining precision is effectively improved.

Taking typical die machining as an example, milling and electric discharge machining are often combined, and in the inspection process, a three-coordinate measuring machine, an optical measuring machine, a roughness meter and other measuring instruments are often used, and data cannot be effectively integrated. In view of the foregoing, it has been explained how to unify the coordinate systems of the devices, and then multiple measurement modules, including but not limited to contact detection probes, contact scanning probes, contact roughness modules, non-contact optical cameras, non-contact lasers, etc., can be mounted on the simulator to perform composite measurement in the same coordinate system. The coordinate system superposition of various measuring heads can be carried out in a compound mode by adopting a plurality of calibration samples on equipment, and the comparison compensation is carried out by comparing the positions of the calibration samples with the theoretical rotation center of the measuring head seat. And the multi-axis linkage can be formed by the movement of the rotating superposition simulator of the measuring head, so that the requirement of normal direction loss of various measuring heads and contact surfaces is effectively met.

Traditional measuring instrument does not need the manual work to let equipment pinpoint during the use, and alleviates unnecessary operation, then mostly adopts the rocker control system who uses the analog quantity as the signal. In order to meet the implementation of the above scheme, particularly when a worker operates the pull meter, the operation mode of the simulation machine should be similar to the operation mode used for alignment of the processing unit, such as inching, long-acting and the like.

The scheme adopts a mode of superposing an analog quantity manual operator by a pulse quantity electronic hand wheel, and performs function switching by a controller logic enabling switching mode, thereby perfectly reproducing the functions of variable rate inching and long-time movement of a machining center, and for conveniently and visually embodying the state of equipment, an information display screen is arranged beside a reference system.

As shown in figure 1, the external preset simulator provides comprehensive straightness, three shafts with good mutual perpendicularity are used for alignment or measurement of the pull meter, the comprehensive straightness can reach 2um or L/100(um) as required, and the perpendicularity can reach 2um or L/100 as required. The three shafts of the device comprise independent metering systems and transmission systems, and can be operated by an alignment operation controller matched with an electronic hand wheel or a measurement operation controller matched with a hand operator according to requirements.

It is furnished with multi-functional screen display for provide required specific information when the current operation, such as: axis selection, coordinate values, velocity, acceleration, distance, etc.

The device is provided with one or more aligned reference systems arranged in a working space, can be adapted to various types of reference fixture systems, and can be used for clamping various types of workpieces.

The operation module can be freely replaced between the measurement and alignment modules according to requirements.

As shown in fig. 2, the base 1 and the base 2 in fig. 2 use the same quick-change seat, and the reference system can provide effective comprehensive repositioning accuracy of any quick-change seat and reference seat up to 0.5 um. In the figure, 201-base 1; 202-base 2; 203-replacing the same block; 204-comprehensive repositioning with accuracy of 0.5 μm.

As shown in fig. 3A and 3B, the alignment system can be installed in two ways, and after installation, the pressure gauge and alignment can be performed along with the three-axis movement of the simulator.

In the utility model, the simulator alignment installation mode as shown in figure 3A and figure 3B is adopted, fig. 3A shows an externally-mounted mounting, which includes a side head base mounting base 100 mounted on the lower portion of the Z-axis transmission assembly, a side head base 101 disposed on the bottom of the side head base mounting base 100, an externally-mounted surface head base 107 disposed on the lower portion of the side head base 101, a contact-type side head 108 disposed on the lower portion of the externally-mounted surface head base, an externally-hung arm 102 disposed on one side of the side head base mounting base 101, a positioning knob 101 is arranged on the outer hanging arm 102, a dial indicator seat 104 is arranged at the lower end of the outer hanging arm, an external dial indicator 106 is arranged at the lower end of the dial indicator seat 104, a pre-tightening knob 103 and a fine adjustment knob 105 are arranged on an external hanging arm, the positioning knob is used for positioning the outer hanging arm on one side of the Z-axis transmission assembly, the pre-tightening knob is used for fixing the dial indicator seat and the outer hanging arm, and the fine adjustment knob is used for fine adjustment of the lever dial indicator.

Fig. 3B adopts a direct connection, which includes a side head base mounting seat mounted on the lower portion of the Z-axis transmission assembly, a direct connection side head base 110 disposed at the bottom of the side head base mounting seat, a direct connection adapter rod 109 disposed at the bottom of the direct connection side head base 110, and a direct connection dial indicator 111 disposed on the direct connection adapter rod.

The external hanging mode of the measuring device is easy to interfere with a measuring module (namely, a graphical contact type measuring head), and a right-direction direct connection mode is adopted for description in the following.

As shown in fig. 4, the measurement operation module employs a probe system used in a conventional measuring machine, which can perform an operation by contact measurement. In the figure, 401 — stylus system.

As shown in fig. 5A, 5B, 5C, 5D, 5E, and 5F, the base of the reference system is aligned by the repeating pull gauge, the dial gauge is used as a reference, and the posture of the base is continuously adjusted to be less than or equal to 1um as required while the pull gauge is pulled. Because the coordinate system of the simulator is the basic reference coordinate system. In the figure, 501-pull a meter to align a base of a reference system; 502-creation of a reference system coordinate system; 503-the machining unit creates a reference system coordinate system; 504-the simulator creates a reference system coordinate system; 505-electric spark creating a reference system coordinate system; 506-resolving schematic diagram of a reference system coordinate system; 507-Z height fixing points; 508-X \ Y is divided into middle points; 509-Z set-height point; 510-reference coordinate system remote point; 511-08-X \ Y is divided into middle points.

After alignment, a reference system coordinate system (finding the origin of the coordinate system) is established on the machining unit, the electric spark unit and the simulator respectively according to the same characteristics.

In order to ensure that data information is correct when the simulation machine software platform and the processing unit carry out NC communication, information flow is named so as to distinguish the sequence and the directivity of equipment, workpieces, equipment mapping equipment and workpiece mapping equipment.

Device naming convention.

1. Naming according to the corresponding characteristics of the equipment number, such as the origin coordinate deviation value of the No. 1 machine corresponding to X1/X1/X1; the model 2 is analogized to X2/Y2/Z2;

2. naming according to the corresponding characteristics of the workpiece numbers, such as X001/Y001/Z001; then the non-0 digit is directly followed by the characteristic to be the serial number of each device, and the 0 digit is followed by the characteristic to be the serial number of each workpiece;

3. the coordinate system corresponding relation, because the coordinate value contains positive and negative vectors, the characteristic information is the front code and the back code, such as DeltaX 13, AY13 and DeltaZ 13, which are respectively the coordinate offset value of the No. 1 machine corresponding to the No. 3 machine coordinate X/Y/Z.

After finding the origin of the reference system coordinates, as shown in FIG. 8, the coordinate system offset value of the current device should be X1/Y1/Z1 (and the rest is analogized), and the coordinate system offset values of the different devices are summed two by two. And inputting the offset values of all the devices into a software platform of the simulator on the basis, and finishing the overlapping construction work of the coordinate systems of the different machines on the basis.

After the coordinate system overlay building work of the different machine is completed, the alignment and measurement are performed on the workpiece on the simulation machine, and the actual coordinate values after the workpiece together with the quick-change seat thereof is replaced with other equipment are shown in fig. 9A, 9B, 9C, 9D, 9E and 9F.

The simulation machine completes the simulation function of the external coordinate system of each processing unit, can complete the functions of alignment, tool setting and inspection in the previous process before processing, and can perform inspection, state analysis and monitoring at any time during and after processing.

Traditional pull meter alignment work is carried out the pull meter alignment by the operator at the processing unit, and its gauge stand often adsorbs on the main shaft, and it is great that the pressure table declination appears easily this moment, and the pressure table is not in the normal direction of losing, and the gauge utensil precision is lower, the processing unit bears the impact load and leads to unipolar precision loss, and operator's improper operation scheduling problem restricts the alignment process precision before the processing greatly. The guide rail of the simulator does not bear impact load, the problems of long-term use precision loss and the like do not exist, the comprehensive straightness and verticality can reach 2um, the short distance can be considered to be less than or equal to 1um, and the measuring module can be replaced after the pull meter to calibrate, so that precision recheck is completed with equipment precision.

As shown in fig. 6A and 6B, the measurement operation module is replaced, the pull gauge reference is measured for the second time, and the position difference in the direction perpendicular to the pull gauge direction is obtained, and if the base pull gauge is parallel to the X axis, the difference in the Y axis may be obtained, and the repeated correction is performed based on the difference.

In the traditional processing process, the pull meter alignment is required every time of secondary clamping, but only a certain datum plane can be selected as the pull meter datum for each alignment, but in actual processing, the datum plane is not necessarily selected as the best datum plane due to processing errors,

as shown in fig. 7A and 7B, the simulator can perform feature inspection on the part to be machined of the external semi-finished product by replacing the measurement operation module, and then select a reference surface for alignment or perform offset alignment as required according to the state of the part to be machined. In fig. 7B, 701 — plane 4; 702-plane 3; 703-plane 2; 704-plane 1.

As shown in fig. 8, the origin offset value of the spark local coordinate system is X-X1; Y-Y1; z ═ Z1;

the origin offset value of the local coordinate system of the analog machine is X2; Y-Y2; z ═ Z2;

the origin offset value of the local coordinate system of the machining center is X3; Y-Y3; z ═ Z3;

the offset value of the electric spark machine relative to the coordinate system of the analog machine is that delta X1 is X1+ X2, delta Y1 is Y1+ Y2, and delta Z1 is Z1+ Z2;

the offset value of the machining center relative to the electric spark coordinate system is delta X31-delta X3+ delta X1, delta Y31-delta Y3+ delta Y1, and delta Z31-delta Z3+ delta Z1;

the coordinate system offset values of the | center in the electric spark relative machining are that delta X13 ═ delta X1 +/delta X3,/delta Y13 ═ delta Y1 +/delta Y3, and/or delta Z13 ═ delta Z1 +/delta Z3;

the offset values of the machining center relative to the coordinate system of the simulator are that delta X3 is X3+ X2, delta Y3 is Y3+ Y2, and delta Z3 is Z3+ Z2.

As shown in fig. 9A, 9B, 9C, 9D, 9E, and 9F, the offset values of the workpiece to be machined 001 with respect to the simulator coordinate system are Δ X001X2 ═ X2+ X001, [ Δ Y001X2 ═ Y2+ Y001, [ Δ Z001X2 ═ Z2+ Z001; the offset value of the workpiece to be processed 002 relative to the coordinate system of the simulator is that delta X002X2 is X2+ X002, delta Y002X2 is Y2+ Y002, and delta Z002X2 is Z2+ Z002; the offset value of the workpiece to be machined 001 relative to the coordinate system of the electric spark machine is that delta X001X1 is equal to X1+ X2+ X001, delta Y001X1 is equal to Y1+ Y2+ Y001, and delta Z001X1 is equal to Z1+ Z2+ Z001; the offset value of the workpiece to be machined 002 relative to the coordinate system of the electric spark machine is that delta X002X1 is X1+ X2+ X002, delta Y002X1 is Y1+ Y2+ Y002, and delta Z002X1 is Z1+ Z2+ Z002; the coordinate system offset value of the to-be-machined part 001 relative to the machining center is that delta X001X3 is equal to X3+ X2+ X001, delta Y001X3 is equal to Y3+ Y2+ Y001, and delta Z001X3 is equal to Z3+ Z2+ Z001; the coordinate system of the workpiece to be machined 002 has the offset values of delta X002X1 ═ X3+ X2+ X002,. DELTA.Y 002X1 ═ Y3+ Y2+ Y002,. DELTA.Z 002X1 ═ Z3+ Z2+ Z002. In FIG. 9A, 1012-the X-Z coordinate system of the simulator; FIG. 9B, 1011-the coordinate system of the X-Y axes of the simulator; in fig. 9C, 1013 — workpiece 1; in FIG. 9D, 1014-workpiece 2.

As shown in fig. 10, compared with the conventional clamping, the clamping of the reference system not only saves the clamping time of each sequence conversion, increases the effective starting time of the machine tool, but also reduces the machining errors and alignment errors brought by the processes. In the traditional machining, the offset of a workpiece coordinate system is accumulated continuously along with the increase of the clamping times, and a reference system adopts the same reference all the time.

As shown in fig. 11, in the conventional machining, the coordinate systems of the multiple machining units cannot be unified, and the coordinate systems cannot be unified after each clamping, that is, the machining cannot be started with the same coordinate origin as a reference, which brings two problems that the machining is troublesome for many years, and 1, the initial deviation is large; 2. how to fix after the problem is detected by the detection equipment?

Based on a software platform of a simulator and matched with a reference system, the two-in-one machine can realize the integration of processing reference and inspection reference and really realize where the repair is not needed. And if the part designer participates, it is possible to integrate the design basis, the processing basis and the inspection basis.

On the basis, the processing precision can be effectively improved.

As shown in fig. 12, compared with the conventional processing method, based on a simulator software platform, the different machine coordinate systems are superimposed and reconstructed in the foregoing manner in cooperation with a reference system, so that each machine can be simulated in the same space and the same coordinate system, the coordinate offset problem between devices can be solved by calling an initial reference system coordinate offset value (as shown in fig. 8) stored in the simulator software platform, and then a workpiece offset value (as shown in fig. 9A to 9F) is called, and the calculation is performed according to the mapping relationship of the device naming rule as a pointer, so that data transmission can be performed through an NC communication technology for processing when the parts are transferred in sequence.

As shown in fig. 13, in the conventional process, different measuring devices, such as an optical measuring machine, a three-coordinate measuring machine, a roughness measuring instrument, etc., are often used for each process.

The simulator may be a measuring head system used in the conventional measuring machine, or a dedicated measuring system shown in fig. 16A, 16B, 16C, 16D, and 16E, and may be equipped with a plurality of measuring heads to measure the same workpiece. And the coordinates of various measuring heads are superposed by correcting the standard ball. In the figure, 1701-contact test module; 1702-align job module; 1703-optical & point laser measurement module; 1704-a scan measurement module; 1705-line laser measuring module.

In order to deal with the difference between the alignment operation and the measurement operation, the simulator is specially provided with two working conditions, and each working condition is provided with a corresponding control system and a corresponding control unit, as shown in a control principle of the alignment operation of the simulator in fig. 14 and a control principle of the measurement operation of the simulator in fig. 15.

During measurement, the same function and working mode as those of the traditional measuring machine are adopted. During the alignment operation, the operation mode of the traditional processing unit is adopted. And the controllers can be integrated as required.

The technical solutions disclosed in the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific embodiments, and the descriptions of the above embodiments are only applicable to help understand the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the description should not be construed as a limitation to the present invention.

Claims (4)

1. A machine tool external working condition simulator based on automatic precision machining is characterized by comprising

A base, a simulator base arranged above the base,

a Y shaft assembly arranged on one side of the simulator base, an X shaft assembly arranged on the Y shaft assembly, a Z shaft assembly arranged on the X shaft assembly, and a side head system arranged on the Z shaft assembly, wherein a dial indicator is arranged on the side head,

the simulator comprises a simulator base, a lever dial indicator, a measurement base, at least one datum system, a measuring base and a datum system, wherein the simulator base is provided with the measurement base, and the measurement base is aligned by repeatedly pulling the lever dial indicator by taking the reading of the lever dial indicator as reference;

the Y-axis assembly comprises a Y-axis transmission mechanism arranged on one side of the base, a Y-axis guide rail arranged on the Y-axis transmission mechanism, a support column arranged in the Y-axis guide rail, a Y-axis metering system arranged at the Y-axis guide rail,

an X-axis transmission mechanism is arranged on the supporting column, an X-axis guide rail is arranged on the X-axis transmission mechanism, an X-axis metering system is arranged along the X-axis guide rail,

a slide is installed on an X-axis guide rail, a Z-axis transmission assembly is installed on the slide, a Z-axis transmission mechanism is installed on the Z-axis transmission assembly, a Z-axis guide rail is installed on the Z-axis transmission mechanism, a Z-axis metering system is installed on the Z-axis guide rail, and a side head system is installed on the Z-axis guide rail.

2. The automatic precision machining-based machine tool external working condition simulator of claim 1, wherein the X-axis transmission mechanism, the Y-axis transmission mechanism and the Z-axis transmission mechanism are one of a ball screw, a linear motor and a synchronous belt transmission.

3. The automatic precision machining-based external working condition simulator of a machine tool according to claim 1, wherein an alignment operation controller and a measurement operation controller are arranged in the base.

4. The automatic precision machining-based simulator for the external working conditions of the machine tool according to claim 1, wherein a display screen, an electronic handwheel for alignment work and a manual measuring operator are further arranged on the simulator base, and the electronic handwheel for alignment work and the manual measuring operator are respectively and correspondingly and electrically connected with the alignment work controller and the manual measuring operator.

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